environmental audit report · 2 overview . weihai environmental protection research institute co.,...

Application for funding from the World Bank Global Environment Facility

Weihai Botong Thermoelectricity Limited

Liability Company

Environmental Audit Report

Weihai Botong Thermoelectricity Limited Liability Company

Weihai Environmental Protection Research Institute Co., Ltd.

August 2011

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Typewritten Text

E1786 v15

Contents

1 PREFACE .................................................................................................................................................. 1-1

2 OVERVIEW .............................................................................................................................................. 2-1

2.1 CORPORATE PROFILE .......................................................................................................................... 2-1 2.2 ORGANIZATION ................................................................................................................................... 2-1 2.3 AUDITING DESCRIPTION ...................................................................................................................... 2-1

2.3.1 Objective and significance of auditing ..................................................................................... 2-1 2.3.2 Auditing basis ........................................................................................................................... 2-1 2.3.3 Auditing scope and time ........................................................................................................... 2-4 2.3.4 Executive standards .................................................................................................................. 2-4

3 PROFILE OF EXISTING PROJECT ..................................................................................................... 3-1

3.1 GEOGRAPHICAL POSITION ................................................................................................................... 3-1 3.2 PROJECT PROFILE ................................................................................................................................ 3-1 3.3 PLANE LAYOUT OF PLANT AREA .......................................................................................................... 3-2 3.4 PROCESS FLOW AND DRAINAGE PROCESS ............................................................................................ 3-4 3.5 MATERIALS CONSUMPTION ............................................................................................................... 3-13

3.5.1 Raw and auxiliary materials consumption ............................................................................. 3-13 3.5.2 Coal ........................................................................................................................................ 3-13 3.5.3 Limestone................................................................................................................................ 3-13 3.5.4 Water consumption ................................................................................................................. 3-13 3.5.5 Products.................................................................................................................................. 3-14

4 DISCHARGE OF MAIN POLLUTANTS AND MEASURES FOR PREVENTION AND CONTROL

4-1

4.1 DISCHARGE OF ATMOSPHERIC POLLUTANTS AND MEASURES FOR PREVENTION AND CONTROL ........... 4-1 4.1.1 Boiler flue gas .......................................................................................................................... 4-1 4.1.2 Dust pollution prevention and control ...................................................................................... 4-4 4.1.3 Summary ................................................................................................................................... 4-5

4.2 WASTEWATER DISCHARGE AND MEASURES FOR PREVENTION AND CONTROL ..................................... 4-5 4.3 NOISE POLLUTION PREVENTION AND CONTROL ................................................................................... 4-7

4.3.1 Noise level at each noise source and measures for prevention and control ............................. 4-7 4.3.2 Noise level after treatment measures are applied..................................................................... 4-8

4.4 SOLID WASTE DISCHARGE AND MEASURES FOR PREVENTION AND CONTROL ...................................... 4-9 4.5 ANALYSIS OF ENERGY CONSERVATION POTENTIAL AND IMPROVEMENT PLAN .................................. 4-10

4.5.1 Operating temperature of boiler ............................................................................................. 4-10 4.5.2 Turboset operating performance and efficiency ..................................................................... 4-10 4.5.3 Frequency control speed regulation device for matching fan of boiler .................................. 4-11 4.5.4 Effect of energy conservation and emission reduction after improvement ............................. 4-12

5 ENVIRONMENTAL MANAGEMENT AND MONITORING ............................................................ 5-1

5.1 ENVIRONMENTAL MANAGEMENT ........................................................................................................ 5-1 5.1.1 Environmental management organization ................................................................................ 5-1 5.1.2 Specific duties and authority .................................................................................................... 5-2

5.2 ENVIRONMENTAL MONITORING .......................................................................................................... 5-3 5.2.1 Exhaust gas online monitoring ................................................................................................. 5-3 5.2.2 Routine monitoring by Weihai Environmental Monitoring Station .......................................... 5-3

5.3 SUMMARY........................................................................................................................................... 5-4

6 POWER PLANT SAFE PRODUCTION MANAGEMENT ................................................................. 6-5

6.1 SAFE PRODUCTION MANAGEMENT STATUS QUO .................................................................................. 6-5 6.2 RELATED SAFETY MANAGEMENT SYSTEM........................................................................................... 6-5 6.3 IMPLEMENTATION OF SAFE PRODUCTION MANAGEMENT SYSTEM ....................................................... 6-5 6.4 SUMMARY........................................................................................................................................... 6-6

7 PROFILE OF OCCUPATIONAL HEALTH ......................................................................................... 7-1

7.1 OCCUPATIONAL DISEASE PREVENTION AND CONTROL ........................................................................ 7-1 7.2 MEASURES FOR OCCUPATIONAL DISEASE PREVENTION AND CONTROL ............................................... 7-1 7.3 OUTLAY FOR OCCUPATIONAL DISEASE PREVENTION AND CONTROL ................................................... 7-2 7.4 IMPLEMENTATION OF OCCUPATIONAL HEALTH PREVENTION AND CONTROL ....................................... 7-2

7.5 SUMMARY ........................................................................................................................................... 7-3

8 RISKS AND MEASURES FOR PREVENTION AND CONTROL ..................................................... 8-1

8.1 PHYSICAL RISK IDENTIFICATION ......................................................................................................... 8-1 8.2 EQUIPMENT AND PRODUCTION EQUIPMENT HAZARD ANALYSIS .......................................................... 8-4 8.3 HUMAN FACTORS, MANAGEMENT FACTORS AND EXTERNAL ENVIRONMENTAL FACTORS ................... 8-5 8.4 IDENTIFICATION OF FIRE, EXPLOSION HAZARDS .................................................................................. 8-5 8.5 TOXICITY IDENTIFICATION .................................................................................................................. 8-6 8.6 PRODUCT DEVICE RISK IDENTIFICATION.............................................................................................. 8-6 8.7 SUMMARY ........................................................................................................................................... 8-6

9 EMERGENCY PLAN ............................................................................................................................... 9-1

9.1 POWER PLANT EMERGENCY PLAN PREPARATION ................................................................................. 9-1 9.2 POWER PLANT EMERGENCY PLAN OVERVIEW...................................................................................... 9-1

9.2.1 Comprehensive emergency rescue plan for serious production accident ................................. 9-1 9.2.2 Special emergency rescue plan for serious production accident .............................................. 9-2

9.3 SUMMARY ........................................................................................................................................... 9-6

10 SOCIAL IMPACT ................................................................................................................................... 10-1

10.1 RELATIONSHIP BETWEEN ENTERPRISE AND EMPLOYEES ................................................................... 10-1 10.1.1 Personnel system .................................................................................................................... 10-1 10.1.2 Employee training .................................................................................................................. 10-1

10.2 RELATIONSHIP BETWEEN ENTERPRISE AND THE LOCAL RESIDENTS ................................................... 10-2 10.3 RELATIONSHIP BETWEEN ENTERPRISE AND SOCIETY ......................................................................... 10-2 10.4 SUMMARY ......................................................................................................................................... 10-2

11 AUDITING CONCLUSION ................................................................................................................... 11-1

11.1 CONCLUSION .................................................................................................................................... 11-1 11.2 MEASURES AND SUGGESTIONS .......................................................................................................... 11-2

1 Preface

Weihai Environmental Protection Research Institute Co., Ltd. 1-1

1 Preface

The objective of environmental auditing is to historically review the existing production

facilities of power plant, identify the problems in production process, pollution prevention and

control, environmental management, safety management, occupational health, risk prevention

and control, emergency plan, social impacts, etc. and propose corresponding solutions.

The application of environmental auditing can effectively reveal the problems in environmental

management, urge related departments to intensify the awareness of environmental protection,

enforce environmental protection policy strictly, as well as urge an enterprise to build a

favorable and responsible image on the basis of long-term development and social

responsibility, highlight environmental protection and thus to intensify the awareness of

environmental protection of the society.

Weihai Botong Thermoelectricity Limited Liability Company (hereinafter referred to as

Botong Thermoelectricity) is a state-owned energy enterprise engaging in heat supply and

power generation established in June 1998, mainly undertaking the task for providing industrial

steam and civil heat supply to Weihai Economic and Technical Development Zone. The

Company now boasts six boilers, three generator sets, with the installed capacity of 60MW and

boiler capacity of 705t/h, 281 employees, total assets of RMB 597 million Yuan, including net

assets of RMB 160 million Yuan. In 2010, the Company supplied heat of 449.81×104GJ/a,

generated electricity of 16152.72×104KWh/a and consumed standard coal of 0.2294 million t/a.

Botong Thermoelectricity also consumes a huge quantity of coal, water resource and emitted

massive pollutants including SO2, smoke, NO2, etc. into the atmosphere while generating

electricity with coal.

The Report conducts an environmental auditing to Botong Thermoelectricity in the aspects of

existing production process, pollution prevention and control, environmental management,

safety management, occupational health, risk prevention and control, emergency plan, social

impact, etc.

2 Overview


2-1

2 Overview

2.1 Corporate profile







assets of RMB 160 million Yuan.

2.2 Organization

See 2.2-1 for the organization chart of Botong Thermoelectricity.

2 Overview


2-1

Office Materials

Department

Financial

Department

Enterprise

Planning

Department

Safety

Training

Department

Production

Technology

Department

Operation

Department

Customer

Center

Design Office Installation

Department

Maintenance

Department

Deputy General

Manager

Board of Directors

General Manager

Construction

Management

Department

Labor Union

and Logistics

Deputy General

Manager

Deputy General

Manager

Heat Supply

Center

Deputy General

Manager

Building

Materials

Department

2 Overview


2-1

Figure 2.2-1 Organization Chart of Botong Thermoelectricity

2.3 Auditing description

2.3.1 Objective and significance of auditing

2.3.1.1 Objective

Perform production site investigation, documents examination and necessary tests, analyze the

environmental protection condition of enterprise, confirm the environmental protection level,

find out existing problems and risks, analyze and compare the potential for environmental

protection, propose practical measures and suggestions for environmental protection, provide

authentic and reliable environmental protection information to the government, guide the

enterprise to improve the level of environmental management and promote the sustainable

development of economy and environment.

2.3.1.2 Significance

1. Needs for determining and releasing the environmental responsibility of enterprise

The environmental responsibility refers to that born by the enterprise on environmental

pollution treatment and ecological environment protection. The environmental auditing is

applied to monitor, evaluate and identify the above responsibilities of enterprise, identify and

release the responsibilities of the audited enterprise in a fair and special way, identify the scope

and nature of responsibilities and protect the lawful rights of the enterprise.

2. Internal demands for sustainable operation of the enterprise

The enterprise engaging in production, operation, market development, etc. must pay a

particular attention to the environmental image and achievement. The mistake in environmental

policy will bring challenges to the managers, lead to financial failure and even bankruptcy and

liquidation. The enterprise can build a favorable internal and external environmental and

ensure the sustainable development through the emphasis on environmental protection and

active involvement in environmental treatment and protection.

3. Important components for management auditing of enterprise

The environmental auditing supervises and evaluates the environmental management activities

of enterprise in management plan, control procedure and control method, analyzes the internal

factors affecting enterprise management benefit and efficiency, improves the control system for

environmental management, urges the enterprise to rationally develop and utilize

environmental resource in fulfilling the social responsibility. On this regard, the environmental

auditing performing analysis and evaluation to the environmental management system is an

important component of enterprise management and auditing.

4. Needs for developing the internal and domestic market

The environmental auditing can assist the Chinese enterprises to develop the international

market as well as the foreign enterprises to settle in China, thus to make contributions to global

economic integration and realize the objective of “mankind has only one home - the earth”.

2.3.2 Auditing basis

2.3.3 Basis of laws, regulations and policy

1. Environmental Protection Law of the People’s Republic of China (Dec. 26, 1989);

2. Law of the People’s Republic of China on the Prevention and Control of

Environmental Noise Pollution (Apr. 1, 1996);

Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong

Thermoelectricity Limited Liability Company


3. Law of the Peoples Republic of China on the Prevention and Control of Atmospheric

Pollution (May 15, 1996);

4. Law of the People's Republic of China on the Prevention and Control of Water

Pollution (Mar. 1, 1997);

5. Law of the People’s Republic of China on the Prevention of Environmental Pollution

Caused by Solid Waste (Sep. 1, 2000);

6. Law of the People’s Republic of China on the Protection of Cultural Relics (Oct.

2002);

7. Law of the Peoples Republic of China on the Promotion of Cleaner Production (Jan. 1,

2003);

8. Law of the People's Republic of China on Appraising of Environment Impacts (Sep. 1,

2003);

9. Decision on Implementing Scientific Concept of Development and Strengthening

Environmental Protection by the State Council (Guofa[2005] 39);

10. List of Construction Project Environmental Protection Classification Management

(Order No. 2 of the Ministry of Environmental Protection, Aug. 2008);

11. The Guideline Catalogue for Industrial Restructuring (2011 version) (Mar. 27, 2011);

12. Huanjian [1993]324 Notice on Strengthening the Environmental Impact Evaluation

Management of Projects Constructed with Loans from International Financial

Organizations of the Ministry of Environmental Protection of the People’s Republic of

China (Jun. 21, 1993);

13. Fagaihuanzi [2004]2505 Notice on the Printing and Distribution of Special Long-term

Planning for Energy Conservation of the National Development and Reform

Commission (Nov. 25, 2004);

14. Guofa [2005]39 Decision on Implementing the Scientific Concept of Development and

Stepping up Environmental Protection by the State Council (2005);

15. Huanfa [2006]28 the Provisional Measure of Public Participating in Environmental

Assessment of the Ministry of Environmental Protection of the People’s Republic of

China (Mar. 2006);

16. Guofa [2007]15 Notice on the Printing and Distribution of the Integrated Work

Program for Energy Conservation and Emission Reduction of the State Council (May

23, 2007);

17. Guofa [2009]38 Notice of the State Council on the Approval and Forwarding of the

Suggestions of the National Development and Reform Commission and Other

Departments on Controlling the Excess Production Capacity and Repeated

Construction and Guiding the Healthy Development of Industries (Sep. 26, 2009);

18. Guofa [2010]7 Notice of the State Council on Further Strengthening the Elimination of

Backward Production Capacities (Feb. 6, 2010);

19. Ordinance of Shandong Province on Environmental Protection (amended by the

Standing Committee of Shandong Provincial People’s Congress on Dec. 7, 2001);

20. Method of Shandong Province for Implementing the Law of the People's Republic of

China on Evaluation of Environmental Effects (approved by the 17th

Meeting of the

Standing Committee of the 10th

Shandong Provincial People’s Congress on Nov. 25,

2005);

2 Overview


2-3

21. Method of Shandong Province for Implementing Law of the People’s Republic of

China of the Prevention of Environmental Pollution Caused by Solid Waste;

22. Ordinance of Shandong Province on the Prevention and Treatment of Environmental

Noise;

23. Ordinance of Shandong Province on the Prevention and Treatment of Water Pollution;

24. Suggestions of Shandong Provincial People’s Government on Implementing

(Guofa[2005]39) Decision on Implementing Scientific Concept of Development and

Strengthening Environmental Protection by the State Council (Luzhengfa [2006]72);

25. Notice of the General Office of Shandong Provincial People’s Government on

Strengthening the Simultaneous Management of Environmental Impact Evaluation and

Construction Project Environmental Protection Facilities in Three Aspects;

26. Notice of the General Office of Shandong Provincial People’s Government on

Forwarding the Suggestions of Provincial Economic and Trade Commission on

Speeding up the Elimination of Outmoded Products and Promoting Structural

Optimization and Upgrading (Luzhengbanfa [2006]96);

27. Notice of Shandong Provincial People’s Government on Furthering Strengthening

Urban Water Conservation (Luzhengfa [2007]4);

28. Notice of Shandong Provincial People’s Government on the Printing and Distribution

of the Integrated Work Program for Energy Conservation and Emission Reduction

(Luzhengfa [2007]39 of Shandong Provincial People’s Government);

29. Suggestions for further Implementing Environmental Evaluation and “Three

Simultaneous Management” System (Shandong Provincial Environmental Protection

Bureau Luhuanfa [2007]131);

30. Major Principles Shandong Provincial Environmental Protection Bureau for Handling

with Serious Environmental Protection Problems (trial) (Luhuanfa [2007]178);

31. Implementation Suggestions for Building an Environmental Safety Prevention and

Control System for the Whole Province (Luhuanfa [2009]80);

32. Suggestions of Weihai Municipal People’s Government on further Implementing

Scientific Concept of Development and Strengthening Environmental Protection

(Weihai Municipal People’s Government Weizhengfa [2006]71);

33. Suggestions of Weihai Municipal People’s Government on Implementing the Notice of

Shandong Provincial People’s Government on Furthering Strengthening Urban Water

Conservation (Luzhengfa [2007]4) (Weizhengfa [2007]19, Apr. 6, 2007);

34. Notice on further Strengthening the Regulated Management of Hazardous Wastes and

Building a Hazardous Wastes Recycling and Exchange System in an All-around Way

(Weihuanfa [2009]120);

35. Notice on Printing and Distribution of the Program for Publicizing Environmental

Impact Evaluation Information of Construction Projects (Weihuanfa [2009]226).

2.3.3.1 World Bank’s regulations

1. World Bank OP 4.01/ (Environmental Evaluation) (Jan. 1999);

2. World Bank OP4.11 (Material Culture Resources, Jul. 2006;

3. World Bank OP/BP4.04 (Natural Habitat (Sep. 1995);

4. World Bank OP/BP4.12 (Involuntary Resettlement) (Jun. 1990);




5. World Bank OHS Guide for Thermal Power Stations (Jun. 18, 2008);

6. World Bank Information Acquisition Policy (Jul. 1, 2010).

2.3.4 Auditing scope and time

The environmental auditing performed from 2008 to 2010 covers the whole plant of

Botong Thermoelectricity.

2.3.5 Executive standards

2.3.5.1 Environmental quality standards

1. Ambient air

Ambient Air Quality Standard (GB3095-1996) grade II is applied for SO2, NO2, TSP, PM10.

See table 2.3-1 for details.

Table 2.3-1 Ambient Air Quality Evaluation Standard

Pollutants

Density limit (mg/m3)

Source of standard Hourly

average

Daily

average

Annual

average

SO2 0.50 0.15 0.06

Ambient Air Quality Standard

(GB3095-1996) grade II

NO2 0.24 0.12 0.08

TSP -- 0.30 0.20

PM10 -- 0.15 0.10

2. Underground water

The Underground Water Quality Standard (GB/T14848-93) grade Ⅲ is applied for

underground. See table 2.3-2 for details.

Table 2.3-2 Underground Water Quality Standard (unit: mg/L, excluding pH)

Pollutant name Underground Water Quality Standard

(GB/T14848-93) grade Ⅲ

pH 6.5-8.5

Total hardness CaCO3 (mg/L) ≤450

Sulfate (mg/L) ≤250

Permanganate indicator (mg/L) ≤3.0

Fluoride (mg/L) ≤1.0

Total coliform (mg/L) ≤3.0

Chloride (mg/L) ≤250

Nitrate nitrogen (mg/L) ≤20

Nitrite (mg/L) ≤0.02

Ammonia nitrogen (mg/L) ≤0.2

3. Environmental noise

The Environmental Quality Standard for Noise (GB3096-2008) grade 1and 3 shall apply to the

acoustic environment. See table 2.3-3 for the standard limit.

Table 2.3-3 Environmental Noise (Unit: dB)

2 Overview


2-5

Functional zone of noise Time

Daytime Night

Grade 1 55 45

Grade 3 65 55

2.3.5.2 Pollutant discharge standard

1. Atmospheric pollutant discharge standard

The first time interval standard of Emission Standard of Air Pollutants for Thermal Power

Plants (DB37/664-2007) will apply for the exhaust gas discharged by boilers 1~3# (3×75t/h).

The second time interval grade B of Emission Standard of Air Pollutants for Thermal Power

Plants (DB37/664-2007) will apply for the exhaust gas discharged by boilers 4~5# (2×130t/h).

The third time interval standard will apply for the exhaust gas discharged by boiler 6#

(1×220t/h). The standard limit of discharge is detailed in table 2.3-4.

Table 2.3-4 Atmospheric Discharge Standard of Thermal Power Plant

Pollutant

name

Discharge density (mg/m3)

First time interval Second time interval grade

B Third time interval

2007.5.1 2010.1.1 2007.5.1 2007.5.1

Smoke 200 100 50 50

SO2 1200 800 400 400

NOX 800 400 400 400

2. Sewage discharge standard

The Wastewater Quality Standards for Discharge to Municipal Sewers (CJ343-2010) will

apply for the discharge of sewage. The standard limit is detailed in table 2.3-5.

Table 2.3-5 Standard of Water Quality of Sewage Discharged into Urban Sewers

(Unit: mg/L, pH dimensionless)

Item PH SS

(mg/L)

CODCr

(mg/L)

BOD5

(mg/L)

Ammonia

nitrogen

(mg/L)

Sulfide

(mg/L)

Petroleum

(mg/L)

Volatile

phenol

(mg/L)

Wastewater

Quality

Standards for

Discharge to

Municipal

Sewers

(CJ343-2010)

GRADE B

6.5～9.5

400 500 350 45 1.0 20 1.0

3. Noise discharge standard

Grade 3 of the Emission Standard for Industrial Enterprises Noise at Boundary 》

(GB12348-2008), 65dB in daytime, 55dB at night.

4. Solid waste storage standard

Standard for Pollution Control on the Storage and Disposal Site for General Industrial Wastes

(GB18599-2001).

3 Profile of existing project


3-1


3.1 Geographical position

Botong Thermoelectricity is situated at No. 221, South Qingdao Road. Its site is selected

according to the General Urban Planning of Weihai City (2004～2020) and the Urban Heating

Power Planning of Weihai City. The plant site neighbors Qingdao Road in the west, Xujia

River crossing the urban area in the north and northwest, Zhongli Village 260 m in the east

isolated by Huanghai Road, Songjiawa Village (Lanshan Town) 180 m in the south isolated by

Botong Road and railway viaduct (Weihai Railway Station to Weihai New Port). The project

has a favorable geographical position and convenient transportation.

Geographical position of Botong Thermoelectricity is detailed in figure 3.1-1.

3.2 Project profile








generated electricity of 16152.72×104KWh/a and consumed standard coal of 0.2294 million

t/a.

The basic information on Botong Thermoelectricity is detailed in table 3.2-1. The main

environmental protection facilities are summarized in table 3.2-2.

Table 3.2-1 Basic Information on Botong Thermoelectricity

Item Boiler tonnage (t/h) Unit scale

(MW)

Total

capacity

(MW)

Remarks

Boilers 1#~3

#

Units 1#-2

#

3×75 2×15 30

Approved by the State Environmental

Protection Bureau (present Ministry of

Environmental Protection of the People’s

Republic of China) in Dec. 1996, accepted

by Shandong Provincial Environmental

Protection Bureau (present Provincial

Environmental Protection Department) in

2004.

Boiler 4#, boiler

5#, unit 3

#

2×130 1×30 30

Approved by Shandong Provincial

Environmental Protection Bureau (present

Provincial Environmental Protection

Department) in Aug. 2004

Boiler 6# 1×220 — —

Approved by Weihai Municipal

Environmental Protection Bureau in Jun.

2010

Whole

plant

Capacity 3×75+2×130+1×220 2×15+1×30

60 — Operating

method

Heating period:

1×75+2×130+1×220 2×15+1×30

Non-heating period:

1×130 1×15

Figure 3.1-1 Geographical Position (scale 1: 1260)




Table 3.2-2 Existing Environmental Protection Facilities

Item Treatment facilities Exhaust funnel Effect

Dedusting

facilities

Boilers 1#~3

# apply three-electric field

electrostatic precipitator

Chimney 1#

(120m high, inner

diameter of outlet

is 3.0m)

99.4% dedusting

efficiency, qualified

discharge

Boiler 4# applies three-electric field electrostatic

precipitator Chimney 2

#

(150m high, inner

diameter of outlet

is 5.0m)

99.78% integrated

dedusting efficiency,

qualified discharge

Boilers 5#~6

# apply four-electric field

electrostatic precipitator

99.8% integrated

dedusting efficiency,

qualified discharge

Desulfuration

facilities

Boilers 1#~3

# apply calcium spraying

desulfuration inside boiler —

Desulfuration

efficiency above

50%, qualified

discharge

Boilers 4#~6

# apply recirculating fluidized bed

boiler+limestone－gysum wet method

desulfuration,

—

Desulfuration

efficiency above

90%, qualified

discharge

Coal yard dust Cofferdam, spray system, coal sinking pool, etc. — Effective reduction of

coal dust

Wastewater

99% production wastewater will be used.

Domestic sewage and some industrial wastewater

will be drained into the sewage treatment plant of

Weihai Zhongrong Anxin Water Resource

Development Co., Ltd. for treatment.

— Qualified discharge

Noise Low noise equipment, silencer, rational

distribution, landscaping, etc. —

Noise acceptable at

boundary

Flyash, slag

Ash and slag handling system, ash silo; the ash

and slag are handled separately and then utilized

by Botong New Building Materials Co., Ltd. to

the north of the plant site; ash silo capacity:

2×560m3

— 100% recycling

Domestic

garbage Collect to Weihai Garbage Disposal Plant — Zero discharge

3.3 Plane layout of plant area

The existing project of Botong Thermoelectricity covers an area of 0.15 million m2. The whole

plant area is distinctive in production process and functional zones. The main power house is in

south-north direction, with the fixed end facing the west and the expansion end facing the east.

The main power house area is provided with turbine house, deoxygenization bunker bay, boiler

house from the south to the north. Dirt catcher, flue and chimney, broken coal handling system,

dry coal shed, etc. are arranged in sequence behind the boiler. The coal yard is arranged in the

east. The main control building and power transformation and distribution facilities are

arranged to the south of turbine house. The chemical water treatment system, natural

ventilation cooling tower, etc. are arranged west of the turbine house; the ash silo and Weihai

Botong New Building Materials Co., Ltd. are situated to the north of the plant area; the main

power house area is isolated by greenbelts and roads in plant area into front area of the plant

and auxiliary production area; such area is mainly composed of office building, staff dining

hall, bathing pool, guest house, etc.

General layout of Botong Thermoelectricity is shown in figure 3.3-1.



3-3

Figure 3.3-1 General Layout of Botong Thermoelectricity

Desulfuration

outside boiler

Integrated desulfuration

building

General drain

outlet

Boiler 1#

Boiler

2#

Boiler

3#

Boiler

4#

Boiler

5#

Boiler 6#

Three-electric field

dedusting

Boiler 5# four-electric

field dedusting

Semi-closed coal yard

Limestone powdercabin

Temporary slag yard

Ash

silo

Reserved denitration

device




3.4 Process flow and drainage process

1. Cogeneration boiler

Boilers 1#~5

# are cogeneration boilers, whose major process flow is: the coal at coal yard is

screened, crushed and conveyed into boiler for burning; the chemical energy of coal inside

boiler is changed to heat energy; the boiler produces steam, which will enter turbine to impel

the generator for changing the mechanical energy into electricity; the electricity is then

supplied to customers through power distribution system. Some steam in turbine will enter

backpressure unit 2# and be discharged at the pressure of 0.981MPa to steam users; some steam

will enter extraction condensing unit and be discharged at the pressure of 0.981MPa to steam

users and for backheating; few steam will act and then be discharged to low pressure heater for

heating the condensed water; the rest steam will work and be discharged to condenser and be

cooled into condensed water by circulating water and be heated by low pressure heater and

then be supplied to the deaerator. Then, it will be heated by high pressure heater together with

the make-up water and then be pumped into boiler to become steam, thus forming a

cogeneration system circulating steam and water.

2. Heat supply boiler

Boiler 6#

is a heat supply boiler, whose major process flow is: the coal at coal yard is screened,

crushed and conveyed into boiler for burning; the chemical energy of coal inside boiler is

changed to heat energy; the boiler produces steam and supplies heat supply network water to

users through pumps; the users apply central heating radiator for heat supply; the heat supply

network water with reduced temperature flows back to the coagulator.

The process flow of boilers 1#~5# and sewage production process are detailed in figure 3.4-1.

The process flow of boiler 6# and sewage production process are detailed in figure 3.4-2.

3. External desulfurzation process

Such process is mainly composed of flue gas system, SO2 absorption system, absorbent

preparation system, gypsum treatment system, wastewater treatment system, etc.

① Flue gas system

When the FGD device is operating, the flue gas from boiler draught fan will enter

absorption tower for desulfuration. Then, after the water mist is removed by demister, the flue

gas will be discharged into the atmosphere by brick flue.

② Absorbent preparation system

Limestone slurry made of limestone will be used as absorbent. Limestone powder will be

delivered to limestone powder silo by pneumatic transmission system, and after being

measured by electric star feeder at the bottom of powder silo and belt weighing feeder, the

limestone powder will be delivered to limestone slurry tank and made into limestone slurry

with the density of 25%. The slurry will be pumped to absorption tower for use. The outlet of

slurry pump is provided with flow rate, density measurement and control devices, which can

perform automatic control according to flue gas and SO2 density.

③ Absorption tower system

The absorption tower system is a vital component of flue gas desulfuration project, mainly

comprising an absorption tower, a demister, a circulating slurry pump and an oxygenization

fan, etc. The absorption tower is a spray tower. The flue gas enters into the high speed

absorption zone of absorption tower, collides with absorption slurry sprayed by nozzle in

reverse direction with a high speed, conducts chemical reaction with absorbent, thus to

remove the sulfur dioxide in flue gas. The purified flue gas will be discharged after demisting.



3-5

In the circulating slurry pool of absorption tower, calcium sulfite will be oxidized by air into

calcium sulfate. The gypsum drainage pump will deliver gypsum slurry to gypsum dewatering

system through absorption tower.

④ Gypsum slurry dewatering system

The slurry drained by absorption tower is a mixture of gypsum (CaSO4·2H2O) and other

salts, including MgSO4, MgCL2, Na2SO4, NaCL, CaCL2, limestone (CaCO3), calcium fluoride

(CaF2), ash content, etc. The gypsum slurry will be delivered to gypsum swirler station by

drainage pump for first dewatering and then buffered by gypsum slurry box and fall on vacuum

belt dewatering machine for secondary dewatering. The residual water quantity of gypsum

discharged by dewatering machine will not exceed 10%. The gypsum will fall into gypsum

storeroom from the trail of vacuum belt dewatering machine.

⑤ Process water system

According to the water quality required by each process, the main water consumption

processes are divided as following: flushing water for FDG’s operation of demister; flushing

water for slurry conveying equipment, running piping, storage tank, belt dewatering machine,

etc.; make-up water for absorption tower slurry pool, water for absorbent preparation system;

water for vacuum pump, cooling water for desulfuration system auxiliary machinery, fan, etc.,

water for slurry pump shaft seal, etc. The process water system will be supplied by reuse water.

All the wastewater will be recycled.

⑥ Wastewater treatment system

The wastewater flowed from gypsum swirler will be pumped into wastewater treatment

system by wastewater pump and it will enter into purified water tank in sequence after

neutralization, sedimentation, flocculation, concentration, purification, etc. Most of the purified

water will be recycled and little water will be used by Botong New Building Materials Co., Ltd.

for ash mixing. The sludge reaching a certain quantity at the bottom of concentration and

purification pool will be delivered into centrifugal dewatering machine for dewatering. The

dewatered gypsum will be transported to Botong New Building Materials Co., Ltd. for

recycling. The water discharged by dewatering machine will be used for dry ash mixing.

The process of desulfuration system is detailed in figure 3.4-3.

Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company


自来水

化学水处理装置

化

学

废

水

中和池

补充水

循环冷却水

循环冷却水泵

凝结

水泵

低压加热器

除氧器

给水泵

高压加热器

抽汽供热

发电机汽轮机

凝汽机

主蒸汽

煤

斗

锅

炉

炉

渣

省煤器

空预器

排

污

临时渣场

除

尘

器

除灰系统

烟气

灰引风机

灰库

建材厂综合利用

煤棚

回用

输

煤

机石灰石粉

锅炉烟气

烟囱


炉外脱硫


Figure Boilers 3.4-1 1#~5

# process flow and process of sewage production



3-7

自来水 Tap water

中和池 Neutralization pool

回用

Recycling

化学水处理装置 Chemical water treatment device

补充水 Make-up water

循环冷却水 Circulating cooling water

循环冷却水泵 Circulating cooling water pump

发电机 Generator

抽汽供热 Steam extraction and heat supply

汽轮机 Turbine

主蒸汽 Main steam

煤斗 Coal bucket

排污 Drainage

锅炉 Boiler

锅炉烟气 Boiler flue gas

省煤器 Economizer

空预器 Air preheater

烟气 Flue gas

除尘器 Dirt catcher

锅炉烟气 Boiler flue gas

引风机 Draught fan

炉外脱硫 External desulfurzation

输煤机 Coal conveyor

烟囱 Chimney

煤棚 Coal shed

石灰石粉 Limestone powder



灰库 Ash silo

除灰系统 Ash handling system

建材厂综合利用 Comprehensive utilization by building materials plant


凝汽机 Steam turbine

凝结水泵 Condensed water pump

低压加热器 Low pressure heater

除氧器 Deaerator

炉渣 Slag

给水泵 Feed pump

高压加热器 High pressure heater


临时渣场 Temporary slag yard



3-9

生水

软化水处理装置除氧器

给水泵

高压加热器

主蒸汽

锅

炉

炉

渣

省煤器

空预器

排

污

除

尘

器

除灰系统

烟气

灰引风机

炉渣综合利用厂

煤场

图2－5 拟建工程工艺流程图

粉煤灰综合利用厂

碎

煤

机

软

化

废

水

缓冲器

再生液水泵

循环水泵

综合循环池

工艺水石灰石

储仓

脱硫石膏

Figure 3.4-2 Boiler 6

# Process Flow and Sewage Production Process

生水 Raw water



软化水处理装置 Softened water treatment device

软化废水 Softened wastewater

除氧器 Deaerator

给水泵 Feed pump

高压加热器 High pressure heater

缓冲器 Buffer

炉渣 Slag

主蒸汽 Main steam

排污 Drainage

锅炉 Boiler

省煤器 Economizer

空预器 Air preheater

烟气 Flue gas


灰 Ash

炉渣综合利用厂 Slag comprehensive utilization plant


引风机 Draught fan

除灰系统 Ash handling system

粉煤灰综合利用厂 Coal ash comprehensive utilization plant

脱硫石膏 Desulfuration gypsum 综合循环池 Integrated circulating pool 再生液水泵 Regenerant pump 循环水泵 Circulating water pump

工艺水 Process water

图 2－5 拟建工程工艺流程图 Figure 2-5 Process flow of the proposed project

石灰石储仓 Limestone storage bunker

碎煤机 Coal breaker



3-11

煤场 Coal yard



7

9

5

2

除尘后

烟气1

4

工艺水

3

6

8

烟囱

工艺水

纯碱

工艺水 Process water

除尘后烟气 Dedusted flue gas

烟囱 Chimney

纯碱 Soda ash

Figure 3.4-3 Desulfuration System Process Flow



3-13

3.5 Materials consumption

3.5.1 Raw and auxiliary materials consumption

Main energy and raw materials consumed by Botong Thermoelectricity from 2008 to 2010 are

listed in table 3.4-1.

Table 3.4-1 Main energy and raw materials consumed by

Botong Thermoelectricity from 2008 to 2010

Main energy

and raw

materials

Annual consumption Remarks

2008 2009 2010

Standard coal 10,000 t/a 156600 208908 229423

Water 10,000 t/a 111.1 146.9 183.6

Electricity 10,000 kwh 2279 3295 3420

Diesel t/a 46 51 57 Ignite the boiler

Hydrochloric

acid (31%) t/a 69 77 85 Chemical water treatment

Sodium

hydroxide

(30%)

t/a 65 72 80 Chemical water treatment

Ammonia water

(25%) t/a 1.2 1.4 1.5

Add drug to boiler to improve

pH and reduce pipeline

corrosion

3.5.2 Coal

Botong Thermoelectricity will apply coal produced by Shanxi Datong and be supplied by a

long-term contracted supplier. The fuel will be shipped to Weihai Port by Qinhuangdao and

then be transported by dump trucks. The highway transportation route is Weihai Port, Haibu

Road, Daqing Road, Hong Kong Road, Hainan Road, Huanghai Road, coal yard of plant, with

the distance of 7km.

Statistical data of coal quality is shown in table 3.4-2.

Table 3.4-2 Coal Quality Analysis Data of Current Project

Item Car(％) Har(％) Oar(％) Nar(％) Sar(％) Aar(％) Var(％) Qdw,ar(kJ/kg)

Value 64.28 3.80 9.10 1.20 0.60 20.98 29.32 23208

3.5.3 Limestone

Boilers 1#~3

# of current project apply internal calcium spray desulfuration technology. Boilers

4#~5

# apply external limestone-gypsum desulfuration. The capacity of current limestone

warehouse is 2×500m3; the current project will not provide limestone crushing device. The

finished limestone powder product will be supplied by Yantai Dongyuan Cement Co., Ltd. and

be transported to plant by airtight tank cars and be stored in limestone powder warehouse.

3.5.4 Water consumption

The production water supply and domestic water of Botong Thermoelectricity will be

supplied by Weihai Water Resource Group.

The water intakes of Weihai Water Resource Group are provided with interception nets, fish

treatment and return system, fine interception railings and aquatile filter system to effectively

reduce the collision and absorption of fishes and shells.




Therefore, the water supply to the proposed project can be guaranteed.

Water balance of Botong Thermoelectricity in 2010 is detailed in figure 3.5-2.

3.5.5 Products

Products of Botong Thermoelectricity from 2008 to 2010 are detailed in table 3.4-3.

Table 3.4-3 Products of Botong Thermoelectricity from 2008 to 2010

Item

Annual output

2008 2009 2010

Heating load (GJ/a) 3055543.79 3255497 4498136

Generated energy (kWh/a) 11531.742 23973.82 16152.72



3-15

化

学

处

理

用

水

（274）

（1.1）

主

厂

房

杂

用

水

（2）

除

灰

渣

用

水

喷

洒

杂

用

水（

4）

输

煤

冲

洗

及

除

尘

用

水

锅

炉

（224.7）

（0.8）

（1）

生

活

用

水

空

冷

器

用

水

冷

油

器

用

水

41(0) 蒸发损失

5（0）

风吹损失

3264（510）

2800（6500）

自来水

237（298）

排放

0.8（0.8）

66（21）

外供（49.3）

（50.4）

2（2）

2（2）

3330 （530）

损失

热

用

户

（6500）

热

网

损

失

（21）

排

污

损

失

20

（6479）530

530

（223.6）

博通建材利用

20.8（0.8）

（4）

14.6（19.4）

石膏排出1（2）

10（20）

9（18）

损失炉

外

脱

硫

（3）

煤

场

生活用水 Domestic water

外供 Supply to others

锅炉 Boiler

化学处理用水 Water for chemical treatment

损失 Loss

主厂房杂用水 Water for main power house

损失 Loss

炉外脱硫 External desulfurzation

除灰渣用水 Water for ash and slag handling

喷洒杂用水 Water for sprinkling

输煤冲洗及除尘用水 Water for coal washing and dedusting

煤场 Coal yard

石膏排出 Gypsum drainage

空冷器用水 Water for air cooler

冷油器用水 Water for oil cooler

博通建材利用 Used by Botong Building Materials

热网损失 Heat supply network loss

热用户 Users

自来水 Tap water

蒸发损失 Evaporation loss

风吹损失 Blow loss

排污损失 Drainage loss

Figure 3.5-2 Water Balance of Power Plant (Unit: m3/h, heating period data is indicated in brackets)

4Discharge of Main Pollutants and Measures for Prevention and Control


4-1

4 Discharge of Main Pollutants and Measures for Prevention and

Control

4.1 Discharge of atmospheric pollutants and measures for prevention and

control

4.1.1 Boiler flue gas

1. Boiler flue gas pollution prevention and control

(1) Before desulfuration improvement of Botong Thermoelectricity, boilers 1#~5

#

apply internal calcium spray desulfuration, with desulfuration efficiency above

50%; three-electric field electrostatic precipitation will be applied for flue gas

produced by boilers 1#~4

#, with dedusting efficiency of 99.4%; four-electric field

electrostatic precipitation will be applied for flue gas produced by boiler 5#, with

dedusting efficiency of 99.8%.

(2) In Dec. 2010, Botong Thermoelectricity built heat supply boiler 6# applying

four-electric field electrostatic precipitator, with the design dedusting efficiency of

99.6 ％ . Recirculating fluidized bed boiler+limestone-gysum wet method

desulfuration with the efficiency above 90％ is applied. The desulfuration system

is able to perform 50% dedusting efficiency. Therefore, the overall dedusting

efficiency of boiler is 99.8%. Meanwhile, Botong Thermoelectricity changed

internal desulfuration of flue gas produced by boilers 4#, 5

# to external

desulfurzation limestone-gysum wet method desulfuration method (in Dec. 2010)

with the design desulfuration efficiency≥90%. After implementing flue gas external

desulfurzation project, the overall dedusting efficiency of boiler 4# is improved to

99.78% and that of boiler 5# is improved to 99.8%.

(3) Flue gas produced by boilers 1#~3

# (3×75t/h) of current project is discharged by

chimney 1# (120m high, internal diameter of outlet of 3.0m). Flue gas produced by

boilers 4#~5

# (2×130t/h), 6

# (1×220t/h) is discharged by chimney 2

# (150m high,

internal diameter of outlet of 5.0m).

(4) The current project installed one flue gas continuous monitoring device

respectively to chimney 1# and chimney 2

# in Nov. 2007 and Mar. 2011. The flue

gas continuous monitoring device for chimney 2#

is undergoing debugging.

Three-electric field dedusting Four-electric field dedusting




External desulfurzation system Online monitoring

2. Monitoring result of boiler flue gas

The flue gas monitoring data of chimney 1#

of current project is detailed in table 4.1-1. The

monitoring result is detailed in table 4.1-2.

Table 4.1-1 Online Monitoring Statistical Result of Boiler Flue Gas from 2010 to 2011

Monitoring data Online monitoring density of chimney 1

# (mg/m

3)

SO2 Smoke NOX

2008.01 805 119 147

2008.02 1167 134 135

2008.03 1115 148 142

2008.04 195 126 81

2008.05 419 158 90

2008.08 224 75 93

2008.09 481 85 119

2008.10 399 60 111

2008.11 486 51 163

2008.12 624 87 230

2009.01 486 74 203

2009.02 423 81 151

2009.03 610 120 221

2009.04 583 85 246

2009.05 749 91 152

2009.06 598 108 160

2009.07 630 116 164

2009.08 742 100 208

2009.09 388 144 160

2009.10 486 59 210

2009.11 483 44 176

2009.12 372 67 228

Standard value 1200 200 800

2010.01 319 64 199

2010.02 283 59 178

2010.03 274 75 213

2010.04 329 89 244

2010.11 411 67 280

2010.12 414 67 279

Standard value 800 100 400

Note: 1: The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power

Plants (DB37/664-2007) shall apply for boilers 1~3#.



4-3

Table 4.1-2 Online Monitoring Statistical Result of Boiler Flue Gas Pollutants

Monitoring date Boiler Density (mg/m

3)

Smoke SO2 NOX

Oct. 7, 2008

Boilers

1#~3

#

Measured

value 100.11 599 283.9

Standard

value 200 1200 800

Boiler 4#,

boiler 5#

Measured

value 43.3 383.4 253.5

Standard

value 50 400 400

Mar. 13, 2009

Boilers

1#~3

#

Measured

value 73.2 538.3 356.9

Standard

value 200 1200 800

Boiler 4#,

boiler 5#

Measured

value 45.8 390.2 241.4

Standard

value 50 400 400

Dec. 3, 2010

Boilers

1#~3

#

Measured

value 141.2 672.9 267.5

Standard

value 100 800 400

Boiler 4#,

boiler 5#

Measured

value 47.5 118.5 244.5

Standard

value 50 400 400

Boiler 6#

Measured

value 32.34 109.08 400

Standard

value 50 400 400

Note: 1: The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 1~3

#. The second time

interval grade B of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007)

shall be applied for exhaust gas discharged by boilers 4~5#. The third time interval standard shall be applied

for boiler 6#.

2: Boiler 6# will be built in Dec. 2012. Its flue gas discharge density shall refer to the Environmental Impact

Report of New Boiler and Desulfuration Project (2010) of Botong Thermoelectricity.

According to table 4.1-1 and table 4.1-2, boilers 1~3# meet the first time interval standard of

the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007). Boilers

4~5# meet the second time interval grade B of the Emission Standard of Air Pollutants for

Thermal Power Plants (DB37/664-2007). Boiler 6# meets the third time interval standard of

the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007).

3. Total quantity indicator of atmospheric pollutants

Total flue gas pollutants discharged by boilers of Botong Thermoelectricity from 2008 to 2010

meet total quantity control indicator requirement of Weihai City. See table 4.1-3 for details.




Table 4.1-3 Total Quantity of Pollutants Discharged by Botong Thermoelectricity from 2008 to

2010 (t/a)

Pollutant SO2 NO2 Smoke

2008 Annual discharge 944.2 697.88 137.7

Total quantity control indicator 2811.43 — —





4.1.2 Dust pollution prevention and control

1. Dust setting measures for fuel storage and transportation system

Strictly control the loading capacity of coal handling trucks, control loading height less than

carriage height and control truck speed, cover the trucks with tarpaulin, follow the specified

route, forbid coal handling trucks to enter the downtown, in order to control the impact of dust

to the surrounding environment, try to lower the fall when loading and unloading coal so as to

reduce dust, apply semi-closed coal yard for coal storage inside plant, in order to eliminate dust;

coal belt conveyor gallery applies closed design; the transfer stations are provided with

waterpower cleaning facilities to eliminate coal dust and prevent the secondary pollution of

coal dust; the transfer stations, coal breakers, etc. with a large fall will be provided with cloth

bag dedusting device with the efficiency above 99% to eliminate coal dust pollution.

2. Measures for the prevention and control of limestone powder dust

Limestone powder will be transported by airtight trucks which can avoid dust to plant and be

delivered to limestone silo through pneumatic force. The top of limestone powder silo is

provided with cloth bag dirt catchers with dedusting efficiency above 99%. The grain size of

collected dust is larger than 10um. Therefore, the dust collection efficiency can be further

guaranteed and improved.

Boiler slag is large and it will not produce dust during the transportation.

3. Measures for the prevention and control of dust produced by ash silo and temporary slag

yard

An ash and slag separation system is applied. The coal powder ash is delivered to the ash silo

of Botong Building Materials by pneumatic force for comprehensive utilization; the airtight

pipeline system can product little dust despite of the fine grain size. Therefore, the impact to

the surrounding environment and sensitive objectives is little.

Monitoring result of dust measured at the boundary of Botong Thermoelectricity in 2009 is

detailed in table 2.2-13.

Table 2.2-13 Monitoring result of dust measured at the boundary (Unit: mg/m3)

Date Time Item East boundary West

boundary

South

boundary

North

boundary

3.10

8：00 TSP 0.191 0.166 0.113 0.115

10：00 TSP 0.130 0.179 0.107 0.189

14：00 TSP 0.243 0.146 0.171 0.142

16：00 TSP 0.189 0.196 0.254 0.168

3.11 8：00 TSP 0.188 0.156 0.195 0.301



4-5

10：00 TSP 0.198 0.176 0.157 0.150

14：00 TSP 0.103 0.169 0.139 0.201

16：00 TSP 0.146 0.149 0.121 0.188

According to the table, the density of dust at each boundary can meet the monitoring

density requirement (1.0mg/m3) of disorganized emission of particulate matters in table 2 of

the Integrated Emission Standard of Air Pollutants (GB16297-1996).

Semi-closed coal yard Coal belt conveyor gallery

Cloth bag dirt catcher at the top of limestone

powder silo

Ash silo of Botong Building Materials

4.1.3 Summary

As a power plant put into production starting from 2001, Botong Thermoelectricity has

continuously improved measures for atmospheric pollution prevention and control, such as

desulfuration facilities improvement, building of wind shielding and dust suppression wall, etc.,

which greatly reduced the discharge of pollutants and meets environmental protection

requirements in pollutant discharge, making contributions to the local environment.

4.2 Wastewater discharge and measures for prevention and control

The wastewater discharged by the current project can be divided into water treatment

wastewater, boiler wastewater, circulating water sewage, domestic sewage, other wastewater,

etc.

The chemical water system applying reverse osmosis and electric desalting produces




wastewater with high slat content and little organic pollution. Some wastewater is used for

sprinkling, coal handling, etc., while others is used by Botong New Building Materials Co., Ltd.

The circulating tower with high content of suspended matters in circulating water does not

discharge other pollutants directly;

In the desulfuration system, the wastewater flows from gypsum swirler will be pumped to the

wastewater treatment system, where the wastewater will enter the purified water tank after

neutralization, sedimentation, flocculation, condensed purification, etc. Most of the purified

water will be used for recycling. Little waste water will be used by Botong New Building

Materials Co., Ltd. for ash mixing.

The domestic sewage is discharged after being treated by septic-tank. In 2010, the plant

discharged wastewater of 0. 1064 million t/a. The wastewater will flow through urban sewage

pipe network to Weihai Zhongrong Anxin Water Resource Development Co., Ltd. Sewage

Treatment Plant for treatment and discharge.

The quality of wastewater discharged by current project is detailed in table 4.2-1.

Table 4.2-1 Quality of Wastewater Discharged by Current Project

Item PH

SS

(mg/L)

CODCr

(mg/L)

BOD5

(mg/L)

Ammonia

nitrogen

(mg/L)

Sulfide

(mg/L)

Petroleum

(mg/L)

Volatile

phenol

(mg/L)

wastewater 7.30 <20 51 8 1.5 Not

detected

Not

detected

Not

detected

Wastewater

Quality

Standards for

Discharge to

Municipal

Sewers

(CJ343-2010)

GRADE B

6.5～9.5

400 500 350 45 1.0 20 1.0

According to table 4.2-1, the quality of drained water meets the Wastewater Quality Standards

for Discharge to Municipal Sewers (CJ343-2010) GRADE B.

The common supervision and monitoring results of Weihai Zhongrong Anxin Water Resource

Development Co., Ltd. sewage treatment plant from 2008 to 2010 are detailed in table 4.2-2.

According to table 4.2-2, the quality of water discharged by Weihai Zhongrong Anxin Water

Resource Development Co., Ltd. from 2008 to 2010 can meet the Discharge Standard of

Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002) first class B. The

wastewater produced by current project can be accepted steadily.

Table 4.2-2 Common Supervision and Monitoring Results of Weihai Zhongrong Anxin Water

Resource Development Co., Ltd. Sewage Treatment Plant in 2010

Year Indicator COD BOD5 SS pH Petroleum Animal and

plant oil Hexavalent chromium

Ammonia nitrogen

Total arsenic

2008

Measured

value 54 11 17 7.41 0.150 0.09 Not detected 2.82

Not

detected

Standard

value 60 20 20 6~9 3 3 0.05 8 0.1

Indicator Total lead Total

mercury

Total

chromium

Total

cadmium

Anion

biosurfactant Fecal coliform Total nitrogen

Total

phosphorus —

Measured

value

Not

detected

Not

detected Not detected

Not

detected 0.235 7900 16.3 0.23 —

Standard

value 0.1 0.001 0.1 0.01 1 10000 20 1 —

2009

Indicator COD BOD5 SS pH Petroleum Animal and

plant oil

Hexavalent

chromium

Ammonia

nitrogen

Total

arsenic

Measured

value 52 12 15 7.60 Not detected 0.494 Not detected 2.88

Not

detected

Standard 60 20 20 6~9 3 3 0.05 8 0.1



4-7

value


mercury

Total

chromium

Total

cadmium

Anion


Total

phosphorus —

Measured value

Not detected

Not detected

Not detected Not

detected 0.169 5400 14.9 0.34 —

Standard value

0.1 0.001 0.1 0.01 1 10000 20 1 —

2010

Indicator COD BOD5 SS pH Petroleum Animal and

plant oil

Hexavalent

chromium

Ammonia

nitrogen

Total

arsenic

Measured

value 49 11 13 7.29 0.360 1.03 Not detected 5.31

Not

detected

Standard value

60 20 20 6~9 3 3 0.05 8 0.1


mercury

Total

chromium

Total

cadmium

Anion


Total

phosphorus —

Measured

value

Not

detected

Not

detected Not detected

Not

detected 0.263 6900 15.1 0.30 —

Standard

value 0.1 0.001 0.1 0.01 1 10000 20 1 —

Note: 1: Detection limit: Petroleum 0.02mg/L, hexavalent chromium0.004mg/L, arsenic 0.007mg/L, lead

0.01mg/L, mercury 0.00005mg/L, total chromium 0.004mg/L, cadmium 0.005mg/L;

2: Observe the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918—2002) grade 1 B.

4.3 Noise pollution prevention and control

4.3.1 Noise level at each noise source and measures for prevention and control

Turbine generator, coal breaker, boiler air blower, draught fan, air compressor, cooling tower,

etc. are the noise sources of current project. The noise source intensity is detailed in table 4.3-1.

Table 4.3-1 Noise level of main devices for current project and measures for

prevention and control

Equipment name Noise level

(dB) Treatment measures Position

Boiler body 85 Sound insulation, vibration

attenuation

Turbine generator set 85~90 Add acoustical enclosure Main power

house

Boiler steam exhaust 100 Add steam exhaust

silencer Boiler

Blower 97 Foundation vibration

attenuation and silencer Outdoor

Draught fan 92 Add silencer

Coal breaker 95

Add sound insulating

wallboard and apply single

room arrangement

Main transformer 80

Desulfuration system 95

Sound insulation, vibration

attenuation, noise

reduction

Air compressor 90 Add silencer and apply

single room arrangement

Main power house

Water pump 93～96

Foundation vibration

attenuation, apply single

room arrangement

Cooling tower 83 Apply isolated

arrangement Outdoor

Blowpipe noise 130 Streaming water spray

dilatation silencer




The monitoring result at plant boundary of current project on Mar. 13, 2010 is detailed in table

4.3-2.

Table 4.3-2 Noise monitoring result

Monitoring point Daytime (dB) Night (dB)

1＃

northwest corner boundary 56.2 52.7

2＃

north boundary 54.0 51.7

3＃

east gate 55.3 52.6

4＃

southeast boundary 61.4 57.9

5＃

south boundary 55.4 52.7

6＃

west boundary 58.6 54.4

Grade 3 standard of the Emission

Standard for Industrial Enterprises Noise at

Boundary (GB12348-2008)

65 55

7＃

Songjiawa 54.3 42.9




55 45

According to the monitoring result, the noise source at each boundary except 4#

meets the

Emission Standard for Industrial Enterprises Noise at Boundary (GB12348-2008) grade 3; the

noise at 4#

exceeding the standard is resulted from the openness of southeast boundary and the

improper maintenance of boiler fans of 4# and 5

#; monitoring point 7

# meets the Environmental

Quality Standard for Noise (GB3096-2008) grade 1; the acoustic environment is good.

In order to solve the noise problem at night at the southeast boundary, Botong

Thermoelectricity installed a hydrodynamic coupling between the fan and the electromotor to

reduce the intake resistance and afforested the inner side of the enclosure at southeast

boundary.

4.3.2 Noise level after treatment measures are applied

Table 4.3-3 indicates the monitoring result of noise. According to the monitoring result, the

measured value at the boundary in daytime and night after Botong Thermoelectricity has

applying the above noise prevention and treatment measures can meet the requirements of the

Standard of Noise at Boundary of Industrial Enterprises (GB12348-90) grade 3.

Table 4.3-3 Noise monitoring result

Monitoring point Daytime (dB) Night (dB)

1＃

northwest corner boundary 55.1 51.1

2＃

north boundary 53.2 50.6

3＃

east gate 53. 5 51.9

4＃

southeast boundary 60.8 54.2

5＃

south boundary 54.9 52.0

6＃

west boundary 57.7 54.1




65 55



4-9

Generator acoustical enclosure

4.4 Solid waste discharge and measures for prevention and control

The solid waste of current project can be divided into domestic garbage and solid production

waste (ash and desulfurized gypsum).

The slag produced from the burning in hearth will be cooled down by slag cooler and be sent to

slag pool for cooling; the electrostatic dust collected by electrostatic precipitator will be sent to

ash silo by the pneumatic conveying system and be used by Botong New Building Materials

Co., Ltd.

The desulfurized gypsum will be recycled by Botong New Building Materials Co., Ltd. as the

raw material for processing aerated concrete and flyash brick.

The current project produces 76.5t domestic garbage annually, which will be collected to

Weihai Landfill Site.

The solid production waste produced by the power plant from 2008 to 2010 is detailed in table

4.4-1.

Table 4.4-1 Output and Comprehensive Utilization of Ash from 2008 to 2010

Output

Year Gypsum output (10,000 t/a) Ash output (10,000 t/a)

2008 — 6.62

2009 — 7.35

2010 1.05 10.42

According to above analysis, the density of emitted boiler exhaust gas meets the Emission

Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007); the quality of water

discharged by the current project meets the Discharge Standard For Municipal Sewerage

System (CJ343-2010)B and the water will enter Weihai Zhongrong Anxin Water Resource

Development Co., Ltd. Sewage Treatment Plant for treatment; In order to solve the noise

problem at night at the southeast boundary, Botong Thermoelectricity installed a hydrodynamic

coupling between the fan and the electromotor to reduce the intake resistance and afforested

the inner side of the enclosure at southeast boundary. After treatment, the boundary noise can

all meet the Emission Standard for Industrial Enterprises Noise at Boundary (GB12348-2008)

grade 3. The domestic garbage of current project will be collected to Weihai Landfill Site by

sanitation department. The ash will be used by Botong New Building Materials Co., Ltd.




4.5 Analysis of energy conservation potential and improvement plan

4.5.1 Operating temperature of boiler

1. Existing problems

Boilers 1#~4

# and the three matching turbines (1

#~3

#) of Botong Thermoelectricity can meet the

requirements for safe operation under 5.29Mpa, 480℃ . However, they are operating under

5.29Mpa, 450℃ and can not achieve the best energy conservation effect.

2. Improvement plan

The improvement is made to boiler outlet through controlling the flow rate of water with

reduced temperature, increasing the heating area of some superheaters, etc. while not changing

coal type, water cooled wall and air preheater. The particular improvement plan is listed below.

(1) Remove all the outer shields from hearth outlet to economizer;

(2) Remove all the high and low temperature superheater pipelines;

(3) Apply 42*4, 15CrMoG pipe for high temperature section, ∮ 42*4, 20G pipe for

low temperature section; keep the number of pipes unchanged, the number of

header unchanged; do not change header for the original superheater and 2-stage

header for water with reduced temperature; adjust the position of header properly;

the number of beams at the top of boiler shall be increased according to the position

of header;

(4) Increase superheater for high and low temperature section in depth; increase 7%

respectively for low temperature section and high temperature section;

(5) Replace spring hanger for main steam pipeline, thicken the thermal insulation;

(6) Replace low temperature section pipeline, change the exhaust gas side of low

temperature section pipe to enamel while keeping the pipe diameter, quantity,

channel, tube plate unchanged.

4.5.2 Turboset operating performance and efficiency


The through-flow for turbosets 1#~3

# of Botong Thermoelectricity was designed according to

the level of 1950s to 1960s. As a result, the actual power performance of turboset falls far

behind the current advanced level. The major factors affecting through-flow are:

1. The blade shaped line is designed by the Soviet Union from 1950s to 1960s, which

features poor pneumatic heating power performance, large profile loss, low

efficiency and poor variable working condition.

2. The distribution of some speed ratios and enthalpy drop is irrational. As a result, the

heating power characteristic parameter deviates from the best value and the

efficiency is low.

3. The meridian plane of through-flow is not smooth. The gallery takes the shape of

step, which causes flow separation easily and increases the loss of through-flow.

4. The rotating blades do not match properly with the static blades. The incoming flow

attach angle of blade is large and it increases the loss of attach angle.

5. The top of rotating blades at some stages is not provided with shroud ring, thus

increasing leakage loss and streaming loss.

6. The application of biserial regulating stages with low efficiency affects the heating



4-11

power performance of unit.

The above factors lead to the intrinsic defects and deficiency of such unit， affect the economic

benefits and cause energy waste.

2. Improvement plan

In order to improve the performance and efficiency of unit, Botong Thermoelectricity will

improve the unit with the following implementation plan after argumentation in different

aspects.

The improvement to the through-flow will replace all the rotating blades and static blades. The

new clapboard and rotor will apply the following advanced technologies:

(1) New generation “loading” efficient static blade with the following features:

① The maximum pneumatic load of blade surface is placed to the rear of blade

grid passageway (traditionally, the maximum pneumatic load of blade surface is

placed to the front).

② Suction surface and pressure surface are composed of high order continuous

smooth curve.

③ The small circle radius of blade front edge is small with a better flow line shape.

The low loss feature of blade grid can be kept when incoming flow direction

(attack angle) changes in a large scope.

④ The small circle radius of blade trailing edge is small and such feature can

reduce trailing edge loss.

⑤ The maximum thickness of blade profile is large and it can strengthen blade

rigidity.

(2) Crankle coupling three-dimensional molding static blade grid.

(3) Regulating stage meridian plane shrinkage.

(4) Shunt static blade grid for big and small blades.

(5) The rotating blades all apply shroud ring whole circle coupling structure to reduce

vibration stress and strengthen blade.

(6) Increase the number of seal tooth to the excircle of rotating blade top to reduce steam

loss.

(7) All the clapboards are changed to welded clapboards. The high welding precision can

guarantee the pneumatic heating power performance of static blade grid, strength

clapboard rigidity and service life.

Another important principle of the improvement plan is to remain the parameters for safe

operation such as rotor weight, thrust behind axle, etc. unchanged to keep the features of axle

unchanged. Meanwhile, the rotating blade whole circle coupling will be applied to greatly

improve the safety of rotating blade. In addition, the rigidity of loaded new blade profile is far

better than that of the original blade. The rigidity of clapboard is also strengthened. Therefore,

the safety of improved unit is far better than that of previous one.

4.5.3 Frequency control speed regulation device for matching fan of boiler


Frequency control speed regulation device is not mounted to high pressure motors of nine fans

matching to boilers 4#~6

# of Botong Thermoelectricity.




2. Improvement plan

Mount frequency control speed regulation device to high pressure motors of nine fans

matching to boilers 4#~6

# of Botong Thermoelectricity and regulate fan through controlling the

rotate speed of frequency converter.

4.5.4 Effect of energy conservation and emission reduction after improvement

After completing the above improvements by Botong Thermoelectricity, the effect of energy

conservation and emission reduction is detailed in table 4.5-1.

Table 4.5-1 Effect of energy conservation and emission reduction

Item Current project After

improvement

Increase and

decrease

Remarks

Coal (standard coal,

10,000 t/a)

22.94 22.25 -0.69 Standard coal

Limestone (10,000

t/a)

1.18 1.16 -0.02

Water (10,000 m3/a) 183.6 183.6 0

Power consumption

(10,000 kW·h)

3420.00 2835.01 -584.99

SO2 (t/a) 645.51 630.5 -15.01

Smoke (t/a) 133.7 118.7 -17.0

NOX (t/a) 948.56 913.56 -35.0

CO2 (10,000 t/a) 57.19 55.47 -1.72

The improved economic and technical norms are detailed in table 4.5-2.

Table 4.5-2 Improved economic and technical norm

No. Item Unit Qty.

1 Saving of standard coal

per year

t 6930

2 Total investment RMB 10,000 Yuan 1806

3 Fixed assets

investment

RMB 10,000 Yuan 1806

4 Saving of coal cost per

year

RMB 10,000 Yuan 693

5 Increased cost per year RMB 10,000 Yuan 344

6 Increased economic

benefit per year

RMB 10,000 Yuan 349

7 Payback period Year 3.53

8 Financial internal rate

of return

% 26.34

9 Net present value of

investment

RMB 10,000 Yuan 1375

According to table 4.5-1 and table 4.5-2, great economic benefits and environmental benefits

can be obtained after apply three improvement measures regarding boiler operating

temperature, turboset operating performance and efficiency and frequency control speed

regulation device for matching fan of boiler.

5 Environmental Management and Monitoring


5-1


Environmental management and environmental monitoring are vital for enterprise management.

The establishment and improvement of environmental protection organization, strengthening of

environmental management, environmental monitoring and supervision inside plant and

inclusion of environmental management into production management are very important for

reducing the discharge of pollutants, promoting rational utilization and recycling of resources

and improving economic benefits and environmental benefits.

Botong Thermoelectricity has established a complete environmental management system with

high environmental management level since 1998.

5.1 Environmental management

5.1.1 Environmental management organization

The environmental management of Botong Thermoelectricity will be performed by Weihai

Environmental Management Bureau. Weihai Environmental Management Bureau is

responsible for implementing laws and standards related to environmental protection,

formulating regulations related to environmental management, understanding environmental

situation of project, setting the targets for environmental quality, proposing treatment measures

and reporting to the superior environmental protection department and related departments.

The specific works will be done by Botong Thermoelectricity.

According to environmental protection requirement of power plant, the company has

established an environmental protection team with the general manager as headman and the

production department manager as deputy headman, and members including principals of

related workshops. The office of environmental protection team is arranged in production

technology department. The production department manager is responsible for environmental

management. A technical supervision network will be formed at plant, department and

workshop (team) level. The production technology department is an authority for technical

supervision of environmental management for the whole plant and is responsible for organizing,

implementing and monitoring the daily environmental management. One full-time technical

supervisor for environmental management will be assigned. Each workshop will be provided

with several part-time environmental controllers.

威海市环保局

世行环办

威海博通热电股份有限公司

最高环境管理机构

日常环境管理机构

环境管理执行机构

最高环境管理机构 Higest environmental management organization




日常环境管理机构 Daily environmental management organization

环境管理执行机构 Environmental management organization

威海市环保局 Weihai Environmental Management Bureau

世行环办 Work Bank Environmental Office

威海博通热电股份有限公司 Weihai Botong Thermoelectricity Limited

Liability Company

Figure 5.1-1 Sketch map of environmental management organization

Figure 5.1-2 Sketch map of environmental management organization of Botong

Thermoelectricity

5.1.2 Specific duties and authority

1. General Manager: Top principal for environmental protection, fully responsible for

environmental protection of whole plant, undertake environmental protection tasks for the

superior and the local government, bring environmental protection into objective of term of

service and economic contract and implement the tasks of environmental protection.

2. Production Department Manager: Coordinate the relationship between environmental

protection department, production and construction department, operation and management

department, etc., examine annual plan and long-term plan of environmental protection, decide

technical environmental treatment plan and implementation measures, deal with serious

environmental pollution accident or issue.

3. Production Technology Department: Be responsible for daily environmental management

supervision and management, supervising the operation and monitoring of environmental

protection facilities, controlling the discharge of “waste gas, waste water, industrial residue),

proposing environmental management plan, collecting environmental management data, doing

well in statistics, archiving, reporting environmental management statements to the superior

regularly, turning over drainage charge to the superior, participating in environmental

management design examination, pre-acceptance of environmental management, completion

acceptance, organizing environmental pollution accident investigation and analysis and

Pro

du

ction

techn

olo

gy

dep

artm

ent

Ma

inten

an

ce Dep

artm

ent

Ea

ch p

os

Ma

terials S

up

ply

Dep

artm

ent

Bo

ton

g N

ew B

uild

ing M

ateria

ls Co

., Ltd

.

Op

eratio

n

Dep

artm

ent

General Manager

Production Department Manager



5-3

environmental quality evaluation, organizing the promotion of advanced experience and

technology for environmental management.

4. Operation Department: Be responsible for burning adjustment, operation examination of

vibration attenuation and noise reduction devices, contacting the maintenance workshop if any

problem is found; be responsible for normal operation of gas desulphurization system,

rationally balancing water consumption, guaranteeing 99% wastewater recycling and

utilization.

5. Maintenance Department: Be responsible for equipment maintenance and ensuring the

safe and stable operation of each device.

6. Materials Supply Department: Be responsible for the supervision, management and

maintenance of coal handling and unloading facilities, establishing related regulations to

eliminate coal pollution; be responsible for fuel transportation, loading and unloading

management, establishing related regulations to eliminate oil pollution; be responsible for

controlling of the coal quality and ensure the ash content and sulphur can meet the

environmental management requirement.

7. Botong New Building Materials Co., Ltd.: Be responsible for the comprehensive

utilization of ash.

5.2 Environmental monitoring

The environmental monitoring of Botong Thermoelectricity will be undertaken by Weihai

Environmental Monitoring Station. Chimneys 1#, 2

# will be mounted with exhaust gas online

monitoring systems.

5.2.1 Exhaust gas online monitoring

Shandong Province is a major province of energy mainly generating electricity with coal. At

present, above 99% of the total generating units with installed capacity of more than 40 million

KW are thermal power generating units. The thermal power generation causes serious sulfur

dioxide pollution while ensuring power supply for economic development and the society.

According to Shandong Provincial Protection Department, each thermal power plant is

required to mount online exhaust gas online monitoring device for assisting exhaust gas

pollution source supervision and management and reducing environmental air pollution. The

online monitoring data will be delivered to the automatic environmental monitoring center as

the basis for environmental management.

Botong Thermoelectricity mounted exhaust gas online monitoring instrument on chimney 1# in

Nov. 2007, exhaust gas online monitoring instrument on chimney 2# in Dec. 2010. The

monitoring is performed strictly following the Specifications for Continuous Emissions

Monitoring of Flue Gas Emitted from Stationary Sources (HJ/T75-2001).

Monitoring instrument: NSA-3080 flue exhaust gas continuous analyzer.

Monitoring method: Non-dispersion infrared spectrophotometry.

5.2.2 Routine monitoring by Weihai Environmental Monitoring Station

Weihai Environmental Management Bureau applies strict online monitoring system. The door

to control room can be opened by two persons each of which holding one key, so as to ensure

the reality and reliability of online monitoring data.

Main monitoring items and frequency

The environmental monitoring plan of Botong Thermoelectricity is detailed in table 5.2-2.




Table 5.2-2 Monitoring plan

No.

Enviro

nment

al

factors

Monitoring point Monitoring item Monitoring frequency Client

Entit

y

perfo

rmin

g the

monit

oring,

super

visio

n

Cost

(RM

B

10,00

0

Yuan

/a)

Exhaust gas online monitoring

1 Exhau

st gas

Chimney discharge

outlet SO2, smoke

All-weather

continuous

monitoring

Monitoring

by NSA-3080

flue gas

continuous

analyzer

6

Routine monitoring by Weihai Environmental Monitoring Station

1 Exhau

st gas

Coal boiler flue

outlet SO2, smoke, NO2

4 periods/year, 1

day/period, if boiler

operates normally

Boton

g

Therm

oelectr

icity

Moni

torin

g by

Weih

ai

Envir

onme

ntal

Moni

torin

g

Statio

n,

super

visio

n

by

envir

onme

ntal

mana

geme

nt

burea

u

2

2 Waste

water

Drain outlet of this

project COD, BOD5, NH3-N, sulfide, petroleum, volatile phenol

4 periods/year, 1

day/period 2

Outlet of Weihai

Zhongrong Anxin

Sewage Treatment

Plant

COD, BOD5, SS, pH, petroleum, animal and plant oil, hexavalent chromium, ammonia, total

arsenic, total lead, total mercury, total chromium, total cadmium, anionic surface active

agent, fecal coliform, total nitrogen, total phosphorus

1 period/year, 1

day/period

Routi

ng

monit

oring

date

to be

provi

ded

by

Weih

ai

Envir

onme

ntal

Moni

torin

g

Statio

n

3 Noise 1m outside

boundary Leq

4 periods/season,

1/period respectively

for daytime and night

1

Monitoring by monitoring station inside plant

1 Solid

waste Plant area Solid waste name, output, disposition Count monthly 0.5

5.3 Summary

Botong Thermoelectricity can basically meet the requirements of the Environmental

Management System for environmental management.

1. Botong Thermoelectricity has established a complete environmental management system

starting the commissioning in 2001.

2. Botong Thermoelectricity has established an environmental protection team headed by

the general manager.

3. Weihai Environmental Monitoring Station will regularly monitor the main pollution

sources of Botong Thermoelectricity for understanding the discharge of pollutants.

6 Power Plant Safe Production Management


6-5


6.1 Safe production management status quo

In order to strengthen safe production management, fully implement Law of the People’s

Republic of China on Work Safety, carefully execute the safety instructions and regulations

issued by the State Electricity Regulatory Commission and the State Administration of Work

Safety, prevent and reduce production accident, ensure the long-term safe and stable operation,

life and property safety, Botong Thermoelectricity has established related management systems

and carried out safe production inspections to continuously improve the safe production

management and reduce safety accident.

6.2 Related safety management system

In order to carefully implement “safety first, prevention crucial” policy, regulate the

supervision work and improve the safe production level, Botong Thermoelectricity fully

implements the safety supervision system and production responsibility system.

In order to strengthen and regulate safe production management, the enterprise has established

strict and detailed safe production management system, such as work order system, operation

order system, regular inspection system, outsourcing project safety management system, etc.,

strengthened the study of the Safe Production Management System, carried out regular

examinations and determined salary according to marks.

The Safe Production Management System has 15 clauses and mainly covers the following: ⑴

safety education management system; ⑵ safety inspection system; ⑶ safe production rewards

and punishment system; ⑷ safety practices, labor protective measures, accident prevention

measures management system; ⑸ safety evaluation management system; ⑹ hazardous

chemicals safety management system; ⑺ low voltage temporary power supply and earth

leakage protective device management system; ⑻ regulations for implementing “two-order”

system; ⑼ specially skilled workers safety management regulation; ⑽ outsourcing projects

safety management regulation; ⑾ accidents (difficulties) investigation, analysis and reporting

regulations; ⑿ special equipment safety management regulation; ⒀ management regulation

for the use of safety equipment; ⒁ management regulation for the use of electric equipment;

⒂ management regulation for safety facilities at production site. The management systems are

detailed in table 6.2-1.

6.3 Implementation of safe production management system

Botong Thermoelectricity carried out “winter inspection activity”, “safe production month”, etc.

in 2010.

These activities summarized problems found out in safe inspection, matters to be further

improved, including the following contents:

⑴ Carefully implement the documents issued by the State Electricity Regulatory

Commission on strengthening equipment management and preventing accident.

⑵ Strengthen hazardous source management.

⑶ Improve emergency management.

⑷ Special instrument management.

⑸ Works regarding peak consumption in summer and prevention of atrocious weather.




⑹ Flood prevention and control.

⑺ Follow the principle of “control in four aspects” and strictly implement information

report system.

Problems found in inspection including:

⑴ Some valves and pipeline directions are not marked and they should be marked;

⑵ Along with the operation, the protective devices of phase I project is becoming unstable;

⑵ Workers for some posts can not meet safe production requirements;

⑶ The marks and rails are not recovered after maintenance;

The enterprise is preparing solutions for above problems according to the actual situation.

6.4 Summary

In order to prevent the occurrence of accident, Botong Thermoelectricity has established

effective safe production management systems, prepared an emergency plan and strictly

implemented monitoring alarm measures for timely finding out accident potential, applying

effective countermeasures and ensuring the safety of employees and production.

For the purpose of further avoiding the occurrence of accident and reducing the rate of

equipment failure, it is recommended to further strengthen safety education to the employees,

carry out safe production inspection, prepare detailed improvement measures for existing

problems and implement the measures practically.



6-7

Table 6.2-1 Summary of safe production management system of Botong Thermoelectricity

No. Item Topic and scope of application Detailed contents

1 Safety education

management system

Specifies safety education

methods, content, examination

management, etc.; applicable

for safety education

management.

① The production staff, production managers

and leaders at all levels must carefully study and

implement various laws and provisions issued by

the state and ministries. ② The safe production

committee of the company must train the

employees regularly in different ways and

organize the examination on the Safety Code of

Electric Power Industry.

2 Safety inspection system

Specifies content and

requirement of safety

inspection, applicable for each

department

① Each department shall organize regular or

irregular special safety inspection and

improvement according to the actual situation

and with the consideration of accident rule. ②

The emphasis of safety inspection lies in the

inspection of problems in safety management,

inspection of leaders, thoughts and

implementation of regulations, equipment

defects, hidden troubles, violation of rules and

disciplines, improvement and implementation.

③ Safety inspection, including joint inspection,

professional inspection and seasonal inspection.

3 Safe production rewards

and punishment system

Specifies rewards and

punishment content for safe

production; applicable for each

department

① The company will implement a safe

production objective management system and

promote the three-level control of safe

production, award the departments and

individuals making great contributions to the

realization of safety objective and punish the

departments and persons responsible for

accidents.② A rewards and punishment system

integrating spiritual encouragement and material

reward, spiritual education and administrative

punishment.

4

Safety practices, labor

protective measures,

accident prevention

measures management

system

Specifies the preparation,

implementation and inspection

of safety and prevention plans;

applicable for production

department and related

departments

Safety and prevention plans are important

measures for proactively carrying out accident

prevention activities, eliminating accidents and

ensuring safe production. The objective of

preparing safety and prevention plans is to

improve the working environment and labor

conditions, ensuring the OHS, preventing

casualties and systematically eliminating

accidents according to plan with emphasis.

5 Safety evaluation

management system

Specifies organization

measures for safety evaluation,

duties, procedure, work

content, improvement of

measures, inspection,

assessment, etc.

① Safety evaluation is an important way for

conducting safety diagnosis, finding out hidden

troubles and hazards; the application of safety

evaluation can help understanding the current

safety level and lay the foundation for safe

production. Safety evaluation is the indication of

“prevention first” in safety management and

changing “afterwards management” to

“beforehand management”. ② In general, safety

evaluation is performed in April and October, of

which the former one will emphasize inspection

and supervision of safety evaluation items and improvements and the latter one will conduct an

all-around evaluation.





6

Hazardous chemicals

safety management

system

Specifies the purchase,

transportation, storage, use,

management, etc. of hazardous

chemicals; applicable for

flammable, poisonous,

hazardous and corrosive

chemicals those may hurt or

damage the personnel,

facilities and environment.

① The works related to hazardous chemicals

must follow the Chemical Dangerous Goods

Safety Management Regulations issued by the

State Council and other regulations. The

emergency plan shall be implemented for

accidents. ② The serious hazardous sources of

hazardous chemicals must be monitored and

periodically evaluated to eliminate hidden

troubles and apply effective measures to prevent

serious accidents. ③ Specify the requirements

on workers and transportation staff related to the

handling of hazardous chemicals. ④ Specify the

storage and use requirements of hazardous

chemicals. ○5 Apply automatic burning and

safety control measures; correctly maintain the

safety control devices of boilers; observe the

regulations on starting and stopping vehicles to

maximize the explosion risk of suspending high

temperature particles during driving (for

instance, particles inside coal grinder, coal mill

and cyclone separator); regularly clean worship

to prevent coal dust accumulation (on the

ground, breast board, crossbeam and equipment

surface); spread to cool down the

high-temperature region of coal pile (resulted

from spontaneous combustion), do not send high

temperature coal into coal dust fuel system; use

thermodetector or carbon monoxide sensor, etc.

to monitor solid fuel storage area, timely find out

fire disaster incurred from spontaneous

combustion and identify high risks.

7

Low voltage temporary

power supply and earth

leakage protective device

management system

Further strengthen and

improve safe production

equipment management,

improve the safety protection

awareness, prevent electric

shock and fire disaster;

applicable for all the staff in

production and non-production

area.

① The work applying low voltage temporary

power supply must comply with the conditions

of the system. ② Power and lighting distribution

cabinet must comply with the conditions of the

system. ③ The earth leakage protective device is

used for preventing electric shock and ensuring

personal safety. Therefore, the low voltage

power equipment must be mounted with earth

leakage protective device and strictly follow

corresponding regulations. ④ Provide warning

lamps in enclosed site of power equipment;

workers entering enclosed site of power

equipment must using voltage sensors; when

working on or nearby electric equipment and

transmission lines, the electricity must be cut off

or the equipment must be properly grounded

according to laws and operation regulations; the

workers working on or nearby exposed power

circuit must be trained particularly covering

basic theory, safe operation regulations,

awareness of danger and identification, proper

use of personal protective equipment, correct locking/hanging of plates, emergency (including

heart-lung recovery), correct rescue procedure

and regular training.



6-9


8

Regulations for

implementing

“two-order” system

Each department must

implement “two-order” system

in order to ensure safe

production, prevent accident,

eliminate defects, and perform

maintenance and installation.

① The Production Technology Management

Department is responsible for managing work

orders and related safety systems. The Operation

Management Department is responsible for

implementing operation order and managing

related safety systems. The workshop is

responsible for implementing “two orders”. The

principals in charge of Operation Management

Department and workshop operation are liable

for implementing the operation order system and

statistics; the principals in charge of Production

Technology Management Department and

maintenance are liable for implementing the

work order system and statistics, the Safety

Supervision Department is responsible for

supervision and assessing the implementation of

“two orders”. ② Leaders at all levels shall

strictly implement the “two orders” and

authentically report the failures caused by “two

orders”. The problems shall be carefully

analyzed despite of the nature and result and be

controlled in “four aspects”.

9

Specially skilled workers

safety management

regulation

Specifies the scope of

specially skilled workers,

matters related to evidence

taking, reexamination,

training, etc.; applicable for

boiler pressure vessel

operation, electrician, hoisting,

welders, motor vehicle

driving, erection at height,

water treatment workers,

refrigeration workers, etc.

① Special works refer to those may cause

casualties easily and lead to serious damages to

the operators, others and the surrounding

facilities. The workers involving in special

works are called as specially skilled workers.②

The specially skilled workers must strictly

observe the national regulations and operational

procedure of special equipment. The workshop is

responsible for managing the specially skilled

workers. The Personnel Department is

responsible for training. The Safety Supervision

Department is responsible for supervision. All

the specially skilled workers must be certified

(with Special Work Certificate). The

qualification of specially skilled workers must be

reviewed twice a year.

10

Outsourcing projects

safety management

regulation

Specifies the safety

management regulations for

outsourcing projects;

applicable for all the

outsourcing projects.

① Do not subcontract outsourcing projects

instead of management; the principal at each

level is totally responsible for safe production

and the safety affairs of outsourcing projects. ②

The Safety Supervision Department is

responsible for production management and is

responsible for safety management of

outsourcing projects. ③ Examine the

qualification of contractors of outsourcing

projects. ④ Assess the safety of outsourcing

projects. ⑤ Assess the contract awarding

department or equipment owners and project

principals for safety.





11

Accidents (difficulties)

investigation, analysis and

reporting regulations

Specifies the preparation of

accidents (difficulties)

investigation, analysis and

reporting regulations, and

ways for accidents

(difficulties) investigation,

analysis and reporting;

applicable for each production

department and related

departments.

① Accidents (difficulties) investigation, analysis

and reporting are vital for observing the principle

of “control in four aspects”, careful

investigation of accidents, drawing lessons from

accidents, carrying out activities for accident

prevention, eliminating hidden troubles those

may hurt the people or damage equipment, and

ensuring safe production. ② The objective of

preparing accidents (difficulties) investigation,

analysis and reporting is to find out the causes of

accidents, emphasize prevention, improve the

working environment and labor condition, ensure

the safety and health of employees, prevent

personal casualties and eliminate accident

systematically as scheduled and with emphasis.

③ The accidents (difficulties) investigation,

analysis and reporting shall follow the Code of

Investigation for the Electric Power Production

Accidents DL558－94 issued by the Ministry of

Power Industry, the State Interim Provisions on

Investigation Procedure of Serious Accidents,

technical regulations on power industry issued

by the superior, working regulations on power

safety, directions for accident prevention and

safe production bulletins.

12 Special equipment safety

management regulation

Specifies the purchase,

installation, use and checking

(inspection), maintenance, etc.

of special equipment;

applicable for boilers, pressure

vessels, pressure pipelines,

hoisting equipment, motor

vehicles inside plant, etc.

① Special equipment include boilers, pressure

vessels, pressure pipelines, hoisting equipment,

motor vehicles inside plant which may endanger

people’s life. The hoisting equipment will be

checked twice a year. The special equipment not

checked is not allowed to be used. The safety

accessories of special equipment must be

checked regularly. ② The use of special

equipment must strictly follow the Safe

Production Law and the Regulations on Safety Supervision for Special Equipment. A perfect

management system and a responsibility system

must be available. The operators must be

certified. The accident must be reported to the

Safety Supervision Department timely and be

handled according to the emergency plan. ③ The

workshop with special equipment or teams

working with special equipment must be

provided with full-time or part-time managers. In

addition, safety documents of special equipment

shall be archived. ④ Ventilation measures shall

be applied for the working area to reduce

temperature and humidity. ⑤ Shorten the

working time in high temperature environment,

ensure drinking water supply. ⑥ The surface

closely contacting high temperature equipment

shall be protected, including generating

equipment, pipeline, etc. ⑦ Warning signs shall

be available nearby the high temperature surface.

Proper personal protective equipment including

heat insulating gloves and shoes, etc.



6-11


13

Management regulation

for the use of safety

equipment

Specifies the purchase, use，checking, maintenance, etc. of

safety devices; applicable for

safety helmets, shock-proof

devices, fall-proof devices,

climbing tools, earth leakage

protective devices, high

voltage electroscopes,

grounding wires, etc.

① The purchase, use and discarding as useless

of safety devices must be reported to the Safety

Supervision Department for approval. ② The

workshops and working teams must archive the

safety devices, check, test regularly according to

regulations, and archive the test results and use

records. ③ The safety devices (shock-proof

devices, fall-proof devices, climbing tools,

insulating tools, etc.) must be checked and tested

regularly. ④ The safety helmets must be

selectively checked annually within the specified

term.

14


for the use of electric

devices

Specifies the purchase, use,

checking, maintenance,

management, etc. of electric

devices; applicable for

hand-held electric devices,

mobile electric devices, etc.

① The electric devices must be provided with

corresponding earth leakage protective device,

isolation transformer and protective facility. ②

All power boxes, temporary power supplies,

temporary sockets or temporary low voltage

electric devices, test instruments, hand-held

electric devices, etc. must be earth leakage

protective. ③ The electric devices can be

checked by high voltage working team with

electrical workshop semiannually. ④ The

electric devices shall be managed by the

workshop and the working team.

15


for safety facilities at

production site

Specifies the use,

maintenance, checking,

governing, etc. of safety

facilities; applicable for

gridding boards, handrails,

guard boards, stairs, platforms,

passageways, etc.

① The safety facilities must be kept compete

and mounted firmly while meeting the safety

requirements. The operators are responsible for

daily examination. The maintenance staffs are

responsible for periodical examination, daily

maintenance and replacement. The unusual

situations must be notified to the maintenance

staffs. ② When dismantling and changing the

safety facilities temporarily, temporary fences

and warning signs shall be provided and some

persons shall be assigned to wait here. The

facilities shall be recovered at the end of work.

③ The erection of temporary facilities and

drilling on structures must be approved in

advance.





16 Traffic safety

management regulation

Specifies that all the staff must

follow traffic rules when

heading to and leaving the

workplace and operating

equipment on free roads or

public roads. The safety

measures for controlling traffic

casualty shall protect project

workers and road users,

including easily injured

persons.

① Emphasize the training to drivers on safety

rules; � improve driving technology; all the

drivers must be certified; restrict driving time

and arrange shifts to avoid fatigue;

② Avoid dangerous roads and prevent driving in

dangerous time to reduce the possibility of

accident;

③ Mount speed control devices (speed

controllers) on trucks and perform remote

supervision of drivers; maintain trucks regularly

and use approved parts to avoid equipment

failure and serious accident.

④ Try to prevent the use of road simultaneously

by pedestrians and construction vehicles;

cooperate with the local communities and

authority in charge to improve road sign and

visibility, and further improve the overall safety,

in particular the roads nearby schools and

playgrounds of children. Perform traffic

education and safety education together with the

local community (such as carrying out publicity

campaign at schools);

⑤ Cooperate with emergency processing staff to

ensure timely first aid;

⑥ Try to purchase materials from the local

market to shorten the transportation distance,

build related facilities (employee dorms) nearby

the project site, and transport workers with buses

to reduce traffic flow; apply traffic safety control

measures and warn workers and vehicles through

road signs and signalmen.

7 Profile of Occupational Health


7-1


7.1 Occupational disease prevention and control

Botong Thermoelectricity has established a safety network covering the whole company

following the Law of the Peoples Republic of China on Prevention and Control of

Occupational Diseases in order to prevent, control and eliminate occupational disease, do well

in occupational disease prevention and control, protect the health and lawful rights of labors

and promote the harmonious development of society; the Personnel Department is responsible

for labor safety and occupational health management. In addition, with the supervision of labor

union, the company has established a perfect labor safety and occupational health management

system. The daily poisoning prevention, dust, chemical injury will be entrusted to local

environmental protection monitoring station.

7.2 Measures for occupational disease prevention and control

Dust, noise and ionizing radiation are major occupational hazards of power plant.

(1) Dust

Dust hazard exists in coal handling, storage, supply, grinding and ash disposal system. At

present, following measures are mainly applied for dust prevention:

① The chute of coal handling system with a large fall shall be mounted with airlock

baffle plate. The coal guiding and acceptance trough at coal dropping point shall be

lengthened. In order to prevent coal dropping and for the convenience of recycling,

the distance between material dropping point and rotary drum at the end shall be

enlarged and the end of coal guiding trough shall be provided with cover plate for

accepting coal.

② The height between rotary drum and ground shall be enlarged. A coal wiper will be

mounted for cleaning the coal dust adhered to non-working surface of belt. These

measures are favorable for cleaning coal dust and preventing the dropping of coal

dust.

③ Independent sprinkling and dust prevention devices shall be available at coal yard

and be used for sprinkling coal pile in non-freezing season to prevent coal dust

dispersion, environmental pollution and reduce coal loss.

④ Workers must wear dust masks, dustproof work clothes, gloves, etc.

(2) Noise

Various fans, water pumps, coal crushing machineries, turbine generator sets, boilers, etc. are

noise sources of a thermal power plant. Presently, following measures are adopted for noise

prevention:

① Mount silencers to boiler steam discharge pipe, reheater ignition steam discharge

pipe, main steam safety valve steam discharge pipe, reheater outlet safety valve,

forced draught blower, etc.

② Mount sound-proof housing to coal mill, provide sound-proof housing to exciter

carbon brush; thermal insulation material wrapped at turbine head can be used for

sound insulation; silencers will be mounted to indoor air conditioners; sound

insulation compartments shall be provided to coal mill, high pressure water supply

pump, air compressor, etc.




③ Provide sound insulation control rooms with noise less than 60 dBA; apply

sound-absorptive decorative materials.

④ Follow related occupational noise regulations in designing the generator;

⑤ Identify and divide high noise zones; wear personal noise protective equipment when

working in high noise zones (area with noise above 85dB).

(3) Ionizing radiation

The workers in a power plant will have to get close to generators, power distribution and

transformation equipment, high voltage transmission lines. Therefore, the contact is

electromagnetic field is more frequently than common persons. An electromagnetic safety

system comprising following contents shall be established to prevent or minimize the

occupational contact to electromagnetic field. Presently, the measures applied for ionizing

radiation prevention and control include:

① Identify the potential contact at workplace, including the measurement of contact

objective, use of personal monitoring equipment during working;

② Train the workers for identifying occupational electromagnetic field contract and

hazard;

③ Divide safety area, identify area exceeding the public contact standard and area not

exceeding the standard; only the trained staff is allowed to enter the area exceeding

standard;

④ Apply implement plans if the contact may or has gone beyond the standard of

ICNIRP, IEEE, etc.

⑤ The set warning value of personal electromagnetic contact monitoring equipment

shall be lower than the reference limit of occupational contact (for instance, 50% of

the reference limit. The improvement plan may include: Arrange shifts for working,

restrict contact time, increase the distance between electromagnetic radiation source

and workers, or apply electromagnetic shielding materials.

(4) Field rescue for occupational disease

The patient burnt by chemical substances shall be immediately cleaned with clean water on site.

The sunstroke patient shall be moved to a ventilating place, rub down with cold water, fed with

cold drink containing salt. Meanwhile, invite medical personnel or send the patient to hospital.

7.3 Outlay for occupational disease prevention and control

The annual outlay of Botong Thermoelectricity for occupational disease prevention and control

is about RMB 0.35 million Yuan, including:

⑴ RMB 0.2 million Yuan for labor protection.

⑵ RMB 0.1 million Yuan for physical examination (once a year).

⑶ RMB 50,000 Yuan for protective equipment and facilities.

7.4 Implementation of occupational health prevention and control

After years of efforts, Botong Thermoelectricity meets various prevailing regulations and

standards for labor safety and industrial sanitation. At present, no person has suffered from

occupational disease.



7-3

7.5 Summary

Botong Thermoelectricity has proactively applied various prevention measures and done a lot

in regulated management, engineering control, employee training, medical supervision,

personal protective utilities, dust monitoring, etc. considering the features of power plant,

various unsafe, unsanitary factors in production process, and thus effectively ensuring the

safety and health.

8Risks and Measures for Prevention and Control


8-1

8 Risks and Measures for Prevention and Control

8.1 Physical risk identification

The hazardous substnaces to be used in this project include diesel, ammonia water,sodium

hydroxide, muriatic acid, whose phasycial paramters and emergency treatment mehtods are

detailed in table 8.1-1~ table 8.1-4.

Table 8.1-1 Physical paramters and emergency treatment mehtods of diesel

Physical and

chemical

properties

It is a mixture mainly comprising alkanes, alkenes, cycloalkanes, aromatic hydrocarbons,

polycyclic aromatic hydrocarbons, a small amount of sulfur (2～60g/kg), nitrogen

(<1g/kg) and additive. It is slightly sticky brown liquid with melting point of -18℃ ,

boiling point of 282～338℃ , relative density of (water=1) 0.87～0.9, flashing point of

38℃ , ignition temperature of 257℃ . It is used as the fuel for diesel engine.

Flammable, irritant; the contact with open fire, high temperature or oxidant may lead to

burning and explosion. The high temperature may increase the pressure inside vessel and

lead to cracking and explosion.

Toxicological

data and

environmental

behavior

Skin contact is the major way of absorption, which may lead to acute kidney damage.

Diesel may lead to contact dermatitis or oily acne. The absorption of fog drop or liquid

may lead to aspiration pneumonia. It can enter into fetal blood through placenta. Diesel

exhaust gas may irritate eyes, nose and cause swirl and headache.

Table 8.1-1 Physical paramters and emergency treatment mehtods of ammonia water

Physical and

chemical

properties

Colorless transparent liquid with strong irritant stink; relative density of (water=1) 0.91.

Dissolve in water, alcohol, used in pharmacy industry, gauze cover industry,

photoprinting, fertilizer, etc.

Toxicological

data and

environmental

behavior

Decompose to release ammonia, the decomposing speed increases along with the increase

of temperature, explosive atmosphere can be formed, the vessel under high temperature

may crack and explode, burning (decomposing) output: ammonia.

The absorption of ammonia water into nose, throat and lung may lead to couth, short

breath, asthma, etc.; death by suffocation may be caused by throat edema; pulmonary

edema will be caused and lead to death. The ammonia water splashing into eyes may

cause serious damage and even bind; skin contact may lead to burning.

Emergency

treatment

methods

(1) Leakage emergency treatment

Evacuate the personnel in leakage area to safe places, forbid irrelevant personnel to enter

the polluted area; the emergency treatment staff shall wear self-contained respirator and

chemical protective cloths. Do not contact leaked chemicals directly, block the leakage

when ensuring safety. Wash with massive water and discharge the diluted water into

waste water system. Absorb with sandy soil, vermiculite or other inert materials, then add

few to massive water and adjust to neutral before discharging into wastewater system. The

leakage of huge quantity shall be enclosed with diking and then collected, transferred,

recycled or treated before abandoning.

(2) Protective measures

Respiratory system protection: Wear gas mask if the steam may be contacted. Wear

self-contained respirator at emergency rescue or escape.




Eye protection: Wear chemical safety protective glasses. Protective clothes: work clothes.

Hand protection: Wear chemical resistance gloves.

Others: Forbid smoking, eating and drinking at workplace. Take a shower and change

clothes after working, keep good health habits.

(3) Emergency measures

Skin contact: Immediate wash with water for at least 15min. Go to hospital if burnt.

Eye contact: Life eyelid, wash at least 15min with flowing clean water or normal saline,

or wash with 3% boric acid, go to hospital immediately.

Inhalation: Immediately leave the site and go to a place with fresh air, keep the respiratory

tract smooth, perform oxygen therapy if difficult in breathing, conduct artificial

respiration if the breathing stops, then send to the hospital.

Ingestion: Immediate rinse the mouth, take dilute vinegar or lemon juice, go to hospital.

Fire extinction: Vaporific water, carbon dixodie, sandy soil.

Table 8.1-3 Physical paramters and emergency treatment mehtods of sodium hydroxide

Marks Molecular formula: NaOH, Chinese standard No.: 82001, molecular weight 40.01; danger

mark: 20 (alkaline corrosive)

Physical and

chemical

properties

Appearance and character: White opaque solid, easily air slaking

Toxicological

data and

environmental

behavior

Acute toxicity: LD504820mg/kg (rat per os)

Hazardous features: This product will not burn. It releases massive heat when meeting

water and steam and forms corrosive solution. Then, it neutralizes with acid and release

heat. This product is strongly corrosive.

Burning (decomposition product): Hazardous toxic smog may be produced.

Emergency

treatment

methods

1 Leakage emergency treatment

Isolate and set warming signs around the polluted area; the emergency treatment staff

shall wear respirator and chemical protective cloths. Do not contact leaked chemicals

directly, collect into dry and clean vessel with cover with a clean shovel, add few to

massive water and adjust to neutral before discharging into wastewater system. The

leakage of huge quantity shall be collected, recycled or treated before abandoning.

2 Protective measures

Respiratory system protection: Wear gas mask if necessary.

Eye protection: Wear chemical safety protective glasses.

Protective clothes: Work clothes (made of anticorrosie materials)

Hand protection: Wear rubber gloves.

Others: Take a shower and change clothes after working, keep good health habits.

3. Emergency measures

Skin contact: Immediate wash with water for at least 15min. Go to hospital if burnt.

Eye contact: Life eyelid, wash at least 15min with flowing clean water or normal saline, or

wash with 3% boric acid, go to hospital immediately.

Inhalation: Immediately leave the site and go to a place with fresh air, perform oxygen

therapy if difficult in breathing, conduct artificial respiration if necessary, then send to the

hospital.



8-3

Ingestion: Immediate rinse the mouth, take dilute vinegar or lemon juice, go to hospital.

Fire extinction: Vaporific water, sandy soil.

Table 8.1-4 Physical paramters and emergency treatment mehtods of muriatic acid

Marks Molecular formula: HCL, Chinese standard No.: 81013, molecular weight 36.46; danger

mark: 20 (acid corrosive)

Physical and

chemical

properties

Appearance and character: White or slightly yellow fuming liquid, with pungent acidity

Toxicological

data and

environmental

behavior

Acute toxicity: LD50900mg/kg (rabbit per os); LC503124ppm, 1h (rat inhalation)

Hazardous features: This product can reacts with some active metal powders and releases

hydrogen. Virulent hydrogen cyanide gas can be produced when meeting cyanide.

Neutralization reaction happens when meeting alkalin, during which process massive heat

can be released. This product is strongly corrosive.

Burning (decomposition product): Hydrogen chloride

Emergency

treatment

methods

I. Leakage emergency treatment

Evacuate the personnel in leakage area to safe places, forbid irrelevant personnel to enter

the polluted area; the emergency treatment staff shall wear self-contained respirator and

chemical protective cloths. Do not contact leaked chemicals directly. Do not sprinkle

water to the leakage. Do not allow water to enter the packed vessel. Mix with sandy soil,

dry limestone or soda ash and then collect the waste disposal site. Wash with massive

water and discharge the diluted water into waste water system. The leakage of huge

quantity shall be enclosed with diking and then collected, transferred, recycled or treated

before abandoning.

2 Protective measures

Respiratory system protection: Wear gas mask or air supply helmet if contacting the steam

or smog. Wear self-contained respirator at emergency rescue or escape.

Eye protection: Wear chemical safety protective glasses.

Protective clothes: Work clothes (made of anticorrosie materials)

Hand protection: Wear rubber gloves.

Others: Take a shower and change clothes after working, place the polluted clothes

independently, keep good health habits.

3. Emergency measures

Skin contact: Immediate wash with water for at least 15min or wash with 2% sodium

bicarbonate solution. Go to hospital if burnt.

Eye contact: Life eyelid, wash at least 10min with flowing clean water or 2% sodium

bicarbonate solution.

Inhalation: Immediately leave the site and go to a place with fresh air, keep the respiratory

tract smooth, perform oxygen therapy if difficult in breathing, inhale 2-4% atomized

sodium bicarbonate solution, then send to the hospital.

Ingestion: Immediate rinse the mouth, drink milk, egg while, plant oil, etc., do not urge

the emesis, immediately go to hospital.

Fire extinction: Vaporific water, sandy soil.




8.2 Equipment and production equipment hazard analysis

(1) Pressure equpiment

The equipment boilers, turbines, etc. involved in power generation and heat supply devices are

usually pressure vessles and pipelines. Under following conditions such as design,

manufacturing defects, strengthen reduciton due to fatigue or corrosion, improper operation

and operation against rules which leading to over temperature, over pressure, reduced ductility

of pressure vessel of reactor due to long term high temperature and high pressure operation,

creepage failure, the pressure equipment suffering stress higher than the bearing capacity may

lead to vessle expolision, casulties, equipment damage and environmental pollution.

(2) Heat exchanger

Under high temperature, pressure and affected by heating exchanging medieum, the joint

between tube nest and tube plate may easily leak. The pipewall may become thin due to

medium flushing, which lead to internal leakage of heat exchanger. The medium leaked into

circulating water system may cause fire and explosion.

(3) Pumps

① If the exposed operating parts of mechanical rotating equpiment such as fans, pumps

involved in production process are not provided with protective covers or the

protective covers are damaged, or the maintenance, inspection violate the rules, or

the electricity is not cut off or the equipment is started accidently due to improper

supervision, the operating parts may cause mechanical injury; if the workers do not

wear protective articles, the operating parts may also cause mechanical injury.

② The improper sealing of pump transmitting flammable liquid and the connecting

pipelines, valves, flanges, pressure gauge nozzles, etc. or flushing corrosion may lead

to the leakage of flammable liquid and thus causing fire.

③ Machines and pumps are major noise sources those may damage the operators. The

noise may affect the hearing capacity and even deaf, or lead to neurasthenia,

cardiovascular disease, alimentary system disease, etc. In addition, the noise may

influence information communication and affect safe production. The operating

pumps are noise sources those may cause diseases to people.

(3) Electric equipment

① The overloading or short circuit of transformer, oil leakage of transformer may lead

to a fire disaster; transformer failure may cause power cut.

② The electric equipment not grounded properly, the damaged insulation, the damaged

power transmission and distribution line, improper supervision of electrical works, or

operation againest rules, etc. may cause electric shock.

③ The damage to protective lead sheath of power cable or the damage to insulation,

long-term overload operation of cable, loose crimping of joint in the middle of cable

junction box, improper welding or selection of joint materials, wet cable terminal,

improper insulation treatment of outgoing line or too short distance, external fire and

heat source may lead to a fire.

④ The operation of entire production system is ensured by electricity. The sudden

failure of electricity may stop the operation of all machines and pumps, cause

irregular reaction and stop, over pressure or leakage of flammable materials and thus

resulting a fire or explosion.

(4) Troubleshooting



8-5

① When inert replacement is not performed properly during troubleshooting of

equipment and pipeline, or the machine is started against rules, the mixed gases may

explode.

② Troubleshooting tools, accessories, etc. not properly used or not firmly placed may

lead to strike injury.

③ The equipment platform or ladder without guardrail and anti-skidding step, or the

platform, guardrail, ladder and anti-skidding step are corroded, fall accident may be

caused.

④ The vehicles transporting auxiliary materials may be damaged due to failure, driving

against rules or improper operation, etc.; motor vehicles without flash hider may

cause a fire or explosion when entering dangerous areas.

8.3 Human factors, management factors and external environmental factors

(1) Human factors

According to the statistics and analysis of accidents, most of the accidents are caused by human

factors. The fatigue and wrong operation caused by long-term overload working, disease or

drunken operation and direction, involvement in taboo works, mental abnormality, intentional

mistake or identification defect may lead to accidents.

(2) Management defects

No corresponding administration organization is established or the organization is not set

rationally; the management systems are not complete or the management measures are not

implemented; the production staff have no rule to follow and they act recklessly; no system of

rewards and penalties is available; the workers are not enthusiastic and active; the routine

inspection is not timely and not careful; the handover is not clear; no perfect safety operation

regulations are prepared; no training system is available; the operators are not trained in three

levels and on skills; the workers not trained are allowed to work and they can not make

judgments correctly; the safety problems are not emphasized and the problems are not solved

timely; the supervision and inspection systems are not implemented strictly; wrong direction or

even direction against rules; no replacement plan or maintenance system for equipment and

facilities; the troubleshooting system is not strict enough to find out problems. The

management defects may lead to accidents. The major principal and other safety managers not

trained may not able to prevent accident. What is more, the accident may become worse.

(3) Working environment, temperature impact

The project is located in an area with distinct four seasons, where is cold in winter and hot in

summer. If no anti-freezing measure is applied properly in winter, the water supply system may

block or broken. The freezing of fire water system will affect fire extinguishing and worsen the

fire accident. In summer, the volatilization of flammable liquid may be facilitated due to the

high temperature and thus increasing the danger of fire disaster. In addition, the high

temperature may cause sunstroke or wrong operation.

Insufficient light at workplace may cause visual fatigue, wrong operation and accident.

8.4 Identification of fire, explosion hazards

The diesel and other flammables in power plant are explosive. The enterprise shall apply

various safety measures to prevent accidents. For instance: ① Prepare perfect regulations and

operation procedures according to the state, ministerial and industrial standards; ② Mount

flammable gas alarming device in working area; ③ Provide water supply system and fire

equipment for fire fighting.




8.5 Toxicity identification

The toxicity will be determined according to the Occupational Exposure Limit for Hazardous

Agents in the Workplace (GBZ2-2002). See table 8.1-5 for details.

Table 8.1-5 Evaluation standards of main toxic substances (mg/m3)

No. Item Evaluation standard Remarks

1 Muriatic acid 7.8 Max. allowable density

2 Sodium hydroxide 2 Max. allowable density

The hazard indicator will be determined according to the following formula:

Hi=Qi/C0i

Wherein:Hi-hazard indicator of toxic substance i;

Qi-processing or storage quantity (kg) of substance i, see table 8.1-6 for details;

C0i-allowable density of substance i (mg/m3).

Table 8.1-6 Storage and transportation quantity of main toxic substances

No. Toxic pollutants Storage and transportation quantity (t/a)

1 Muriatic acid 15

2 Sodium hydroxide 15

The hazard indictors of major substances for the project are detailed in table 5-9.

Table 5-9 Hazard indictors of major substances

No. Toxic pollutants Hazard indicator Hi

1 muriatic acid 1.9×103

2 sodium hydroxide 7.5×105

According to the above table, sodium is the primary and muriatic acid is the secondary toxic

materials in production process of Botong Thermoelectricity.

8.6 Product device risk identification

The risks of boiler device, turbine device, distribution system, chemical water device not

considering any other safety measures are high. The enterprise shall strictly follow the national

laws, regulations and standards in equipment design, manufacturing, installation, acceptance

and use, strengthen explosion proof design, process control, interlocking device and safety

operation procedure, arrange the separation space strictly, implement measures for emergency

treatment, alarming, etc., prepare scientific and detailed emergency plan, train the operators

regularly, organize periodical emergency rescue rehearsal in order to prevent the occurrence of

serious accident.

8.7 Summary

Coal and water are raw materials for Botong Thermoelectricity. The production involves diesel,

ammonia water, sodium hydroxide, muriatic acid, etc. Due to the little quantity, the toxic effect,

fire and explosion risk are not apparent if preventive measures are applied.



8-7

Each boiler, turbine, chemical water devices, etc. are highly risky. The operation against rules,

insufficient safety awareness, etc. are major factors causing accidents. During the production

process, the equipment shall be well maintained and repaired and the safety protection of key

parts and alarming measures shall be emphasized for finding out hidden troubles and applying

timely and effective measures to prevent accidents.

9 Emergency Plan


9-1

9 Emergency Plan

9.1 Power plant emergency plan preparation

Botong Thermoelectricity has organized related production departments in preparing the

environmental emergency plan. The Production Technology Department is responsible for

auditing, amendment and coordination.

9.2 Power plant emergency plan overview

The emergency plan is divided into serious production accident plan and environmental

emergency plan.

9.2.1 Comprehensive emergency rescue plan for serious production accident

⑴ Preparation objective and function: Effectively control the occurrence and development

of emergency event, try to reduce the threat of accident to human and equipment, reduce the

loss to the minimum.

⑵ Preparation basis: Safety Production Law, Regulations on the Control over Safety of

Dangerous Chemicals, Temporary Provisions for the Prevention of Serious and Extremely

Serious Safety Accident and Emergency Treatment, 25 Important Requirements on the

Prevention of Serious Power Accident, Safe Power Working Regulation, Guide Rule for the

Preparation of Emergency Plan for Safe Production Accident of Production and Operation

Entities, etc.

⑶ This plan covers the production scope of the company.

⑷ Risk sources and risk analysis

Coal handling belts, cables, pressure vessels, traveling crane, fuel pump room, etc. are risk

resources, which may lead to firing, explosion, casualties, collapse, destructive earthquake,

flood prevention and control, power failure of whole plant, power grid accident, etc.

⑸ Early warning and prevention

① Early warning

Risk sources will be monitored by remote computers and persons on duty. The

abnormality will be reported immediately.

② Prevention

Conduct rational design and scientific management according to the 25 Important

Requirements on the Prevention of Serious Power Accident, eliminate risks and

hazardous factors intrinsically, carry out annual safety evaluation, identify risks and

hazardous factors, and perform corresponding improvements.

Follow the principle of early identification, early reporting, early disposal, predict

possible events, timely report the emergency control center and notify related

departments.

The preventive measures include material storage, emergency rehearsal, etc.

③ Early warning activity

Immediately report to the shift supervisor and the headquarters if finding out the

target. The headquarters will release emergency rescue order according to the actual

situation. If emergency risk avoiding, emergency response expansion and asking for




help are required, the headquarters shall require the office, guarding department, fire

fighting department, health department, etc. to make an emergency response.

⑹ Emergency response

① Response classification

The early warning can be divided into four classes: class I (very serious), class II

(serious), class III (relatively serious) and IV (common), indicating with red, orange,

yellow and blue in sequence.

Red class (I): Personal casualties, power failure of whole plant, destructive

earthquake, serious fire disaster, serious flood, flooding of dam, etc.

Orange class (II): Emergency above class II is about to happen and the event may

worsen.

Yellow class (III): Emergency above class III is about to happen and the event may

worsen. For instance: power grid accident, elevator catching fire.

Blue class (IV): Emergency above class IV is about to happen and the event may

worsen.

The emergencies will be classified according to above classes. The early warning

class will be detailed in the respective plan.

The commander in chief will firstly propose suggestions to early warning according

to the category of emergency and report to the emergency headquarters.

② Response procedure

Emergency procedure includes initial response, response procedure, emergency

expansion, emergency completion, information release, latter disposal, etc.

⑺ Training and rehearsal

① Training

The training of emergency knowledge skills will be contained in the annual work

plan. The Safety Education Department will organize rescue training and study at

least once a year. If necessary, experts will be employed to train the employees on

rescue knowledge and train the commander in chief, members of command party,

rescue workers, operators, other persons, self rescue, mutual rescue, etc.

② Rehearsal

The related plan shall be rehearsed at least once a year by each workshop, so as to

improve the direction level and rescue capacity. Schemes shall be prepared for

rehearsing the plan.

9.2.2 Special emergency rescue plan for serious production accident

The plan lists eight special emergency plans for ensure the operability of emergency plan. See

table 9.2-1 for details.

9 Emergency Plan


9-3

Table 9.2-1 Profile of Special Emergency Rescue Plan for Serious Production Accident of

Botong Thermoelectricity

No. Item Department in

charge

Accident type and hazard level

identification

Emergency

class Emergency disposal

1

Emergency

plan for serious

production

accident of coal

handling belt

Coal handling

workshop

The belt under open flame,

electric welding slag, coal

powder spontaneous combustion,

electrical fire may catch a fire,

etc. According to the variety of

belt used by coal handling

system, the whole coal handling

system belt can be regarded as

the emergency rescue target. The

coal handling belt catching a fire

can endanger the neighboring

belt, cable inside trestle and

surrounding board region.

Class Ⅲ

Stop the operation of the belt catching a fire

to prevent the worsening of burning, cut off

the power supply to electric equipment to

prevent short circuit, use the water

sprinkling isolation facilities at the end of

coal handling belt and neighboring trestle to

prevent fire expansion, use the field fire

fighting water and dry-chemical fire

extinguisher for extinguishment, cover the

belt with sandy soil , close the doors and

windows, isolating channel gates at the

terminals of coal handling belt trestle

catching a fire to reduce air flow, avoid coal

powder flying, reduce burning speed and

provide rescue opportunities. The coal

handling belt support and coal handling

trestle structure threatened by fire can be

cooled down directly with water to prevent

deformation or collapse.

2

Emergency

rescue plan for

firing or

exploded fuel

pump room,

personal

casualties

Coal handling

workshop

The fuel pump room of coal

handling workshop is responsible

for fuel unloading, storage,

supply and effluent oil treatment.

0# light diesel will be used.

Sudden leakage, operation out of

control or natural disaster may

lead to the potential risk of fire

explosion, etc.

ClassⅠ

① Fire caught at oil unloading: Immediately

stop unloading, close the upper cover to

prevent oil evaporation, cut off the oil

pipeline to oil tank to prevent fire spreading,

take the oil tank car to a safe place, cool

down with fire-fighting lance. ② Fuel pump

room catching a fire: Cut off the power

supply if the electric motor catches a fire,

extinguish with carbon dioxide extinguisher.

The oil pump room catching a fire due to oil

gas accumulation shall be extinguished with

water, or foam, carbon dioxide, dry powder,

etc. ③ Oil tank catching a fire: Shut down

the sewer in tank area connecting to the

outside, the valves of valve well. If the

opening of tank top has caught a fire, use the

foam extinguishing system to inject foam of

above 200mm thick, cool down the external

wall of oil tank with cold water to isolate oil

and air.

3

Emergency

rescue plan for

serious fire

disaster of

cable

Electrical

workshop

Cable fire is one of the extreme

serious accidents and it may

cause serious loss, which is

difficult for rescue. The damage

to insulation, overload operation,

external environment, etc. may

cause the insulation breakdown

and short circuit. The electric arc

may lead to cable fire. The power

cable catching a fire may affect

the master control room,

surrounding areas, etc.

ClassⅠ

Stop the operation of equipment if the cable

catches a fire. Identify equipment name,

faulty point according to cable route and

feature, do well in protection, prevent

hazardous gas pickling, protect the fire site,

keep lighting, provide emergency lighting

and positive pressure respirator for entering

fire zone, follow fire fighting regulations in

extinguishing the initial fire, block the fire

doors at two ends of cable trench and other

parts to avoid air flow and facilitate fire

extinguishing, apply stifling method.





charge


identification

Emergency


4

Emergency

rescue plan for

serious

accidents of

traveling crane,

etc. and

personal

casualties

Engine and

boiler

workshop

Turbine house installed with big

traveling crane ClassⅠ

If the traveling crane or other hoisting

equipment is not functioning normally, the

finder of must immediately notify the shift

supervisor to cut off power supply and

evaluate the workers on site. Then, the

finder shall initially judge the scope of

accident and notify the maintenance

workshop. The maintenance staff arrived

shall firstly build safety guardrails to protect

the accident site and then check the

equipment under failure, identify the causes

and take necessary measures. If the persons

on traveling crane can not escape from

accident site, a latter of sufficient length

shall be provided to rescue them.

5

Emergency

rescue plan for

power failure of

whole plant

Electrical

workshop

The power failure of whole plant

can be caused by system

oscillation, tripping of 35KV

contact line, failure of 35KV bus,

wrong action of protection and

switch, refusal of action or power

failure of important equipment,

serious fire disaster of main

tunnel cable, etc. At a result, the

three units may dump load, the

turbine may trip, the main

throttle valve may close and the

boiler may stop burning, thus

causing insufficient power

generation and breakdown of

some systems.

ClassⅠ

After the power failure of 35KV bus, the

person on duty shall immediately check the

light words, signals, switches and protection

actions, etc. and immediately report to the

shift supervisor; cut off all the switches of

bus, check the equipment system and

immediately report if any problem is found;

check 35KV switch control pressure,

emergency lighting switching, ensure DC

bus voltage, report to the shift supervisor

detailed failure information. The person on

duty shall apply corresponding measures if

the main throttle valve is closed, generator

and system sectionalizing field suppression,

auxiliary power failure, 6KV, 380V bus

failure.

6

Emergency

rescue plan for

personal

casualties

caused by the

explosion of

pressure vessel

Engine and

boiler

workshop

During the operation process of

pressure vessel, the shell fissure,

raw material defect, bolt

breakage, overpressure of

medium, etc. will seriously

damage the pressure vessel and

endanger the staff and equipment

nearby. The accident of pressure

vessel may affect boiler steam

pocket platform and surrounding

boundary.

ClassⅠ

① The person finding that pressure vessel is

damaged or the person receiving alarm must

immediately notify the operator, whom is

required to take reliable measures to switch

the system normally while not endangering

equipment and personnel safety. ② The

operator and the maintenance staff shall

check casualties and damage of neighboring

equipment. Professional rescuers shall be

invited if there is any casualty and reliable

measures shall be applied for rescuing. If the

neighboring equipment is damaged, the

operator shall be contacted to switch

corresponding equipment and cool down the

steam gushed from pressure vessel to

prevent the worsening of accident. ③ The

professional technicians entering the

accident site shall confirm the causes to

failure, prepare perfect repair and

emergency plan with the workshop where

accident has happed. The professional

technicians are also required to provide list

of spare parts to the Materials Supply

Department for procurement according to

inventory. Ensure the successful completion

of rush to repair and dealing with

emergency.

9 Emergency Plan


9-5


charge


identification

Emergency


7

Emergency

plan for power

grid accident

and assuring

the power

supply to plant

Electrical

workshop

Abnormal maintenance of 35kV

bus or outgoing line for Weihai,

other line failures due to weather

and wrong action of protection,

which caused power failure of

35kV bus of the company, or the

system oscillation resulted from

the sectionalizing of Weihai

power grid and system, which

caused the power failure of our

company, or large area power

failure of Weihai.

Class Ⅲ

Firstly identify accident feature if the

normal operation of 35kV system is affected

and power system safety is threatened due to

power gird failure or equipment failure, then

process according to related regulations.

8

Special

emergency

rescue plan for

destructive

earthquake

Protection

Technology

Department

The earthquake intensity of plant

site in Weihai is 7 on Richter

scale.

ClassⅠ

① If an earthquake happens, the rescue

team of the company will immediately go to

the plant site to arrange guards and evaluate

people at any time. ② The staff of each

related department will check the steam, hot

water pipelines, water supply pipelines, ash

delivery pipelines, etc. on and under the

ground and apply isolation measures if they

crack. Meanwhile, the superior shall be

reported to apply emergency measures for

avoid the worsening of accident. ③ The

headquarters will notify each department to

implement safety prevention measures,

strengthen routine inspection, timely report

risks and give the order for stopping the

operation of unit.




9.3 Summary

Botong Thermoelectricity has prepared the Environmental Emergency Plan according to

requirements, which can be used to effectively prevent the occurrence and development of

emergency, eliminate the threat to personnel and equipment and minimize the loss.

10 Social Impact


10-1

10 Social Impact

10.1 Relationship between enterprise and employees

The development of an enterprise lies on the development of employees. Botong

Thermoelectricity has applied a series of measures to improve personnel system, working

environment, welfare, training, etc. to establish a good trustworthy relationship between

enterprise and employees.

10.1.1 Personnel system

(1) Personnel structure

Age structure-At present, Weihai Botong Thermoelectricity Limited Liability Company holds

281 employees, including 95 employees under the age of 30, accounting for 34% of the total,

106 employees aged between 31 and 40, accounting for 38% of the total, 63 employees aged

between 41 and 50, accounting for 22% of the total, 17 employees above the age of 50,

accounting for 6% of the total.

Education background-12 employees of junior high school education and under, accounting for

4.3% of the total, 46 employees of senior high school education, accounting for 16.4% of the

total, 104 employees of technical secondary school and technical school education, accounting

for 37% of the total, 70 employees of junior college education, accounting for 24.9% of the

total, 48 employees of undergraduate course education, accounting for 17.1% of the total, one

employee of postgraduate education, accounting for 0.3% of the total.

Gender structure-281 employees in total, including women of 107 (of which six are cadres),

accounting for 38% of the total, 16 cadres (of which six are women) of medium level and

above. Women cadres of medium level and above account for 30% of the total.

(2) Employee’s participation in decision making, management, promotion and competition

mechanism

Botong Thermoelectricity under the supervision and direction of plant labor union has built a

relative perfect plant affair publication, government affair publication system, a management

system, a labor protection system, a supplementary medical insurance system, etc., which are

related to the long-term development of enterprise and the interests of the employees.

Important decisions must be approved by employee representative meeting before

implementation.

The promotion and competition of posts shall be guided by the principle of “open, fair and

justice”, Work Standard, Management Standard, Post Condition, etc. and be implemented in

many aspects.

10.1.2 Employee training

Botong Thermoelectricity attaches great importance to employee training in the process of

development and carries out training according to specialty. The enterprise will arrange

training to department with environmental protection related posts based on the annual training

plan.

(1) Post training

Gradually train competent maintenance staff according to the requirements of “be expert in one

thing and good at many”; the staff for major posts shall gradually realize full competent

working; all the staff for operation posts shall be trained in turn; cadres and managers of

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medium level shall be trained regularly for management knowledge, laws and provisions.

(2) Environmental protection training

Botong Thermoelectricity performed environmental protection training covering following

aspects in 2010 according to 2010 Environmental Protection Training Plan:

① Organized cadres of medium level and above to study the newest environmental

potection laws and provisions through the Internet.

② Train the employees to understand the production process, safety knowledge,

important environmental factors, etc. before they taking up posts.

③ The department requiring posts involving in important environmental factors shall

arrange the training according to the annual training plan, for instance, understand

the important environmental factor of post, master operation procedure and related

documents of post, get familiar with the objective, indicator, management plan of

post, impact of behavior violating operation procedure, etc.

④ Perform training to desulfurization staff for practice.

10.2 Relationship between enterprise and the local residents

As a new rising thermal power enterprise, Botong Thermoelectricity highlights the relationship

with the surrounding residents. Botong Thermoelectricity had conducted a series of energy

conservation, capacity expansion and environmental improvement from 2004 to 2010 based on

scientific progress, in order to realize sustainable development.

(1) Building of new sweetener to reduce pollutant discharge

The enterprise invested RMB 20 million Yuan in desulfuration improvement of boilers 4#, 5

#

with external limestone-gypsum desulfuration technology. Such project was commended in

June 2010. After completion, the desulfuration efficiency can be larger than or equal to 90%.

The project can greatly reduce SO2 emission and improve the regional environment.

(2) Unit heat supply improvement

Along with the improvement of living standard in Weihai City, the demand of urban residents

on heat supply is also increasing. To meet the increasing demand, Botong Thermoelectricity

improved the extraction condensing turbine while not building new boiler, expanding boiler

and increasing atmospheric pollution and applied circulating water in heat supply, which

increased heat supply area of 1.19 million m2.

10.3 Relationship between enterprise and society

The sustainable development of an enterprise must be supported by the local society. Botong

Thermoelectricity, while proactively carrying out environmental protection training to the

employees, functions as an enterprise citizen to get the trust and support from society.

10.4 Summary

Botong Thermoelectricity has applied a series of measures to improve personnel system,

working environment, welfare, training, etc. to establish a good trustworthy relationship

between enterprise and employees and lay a solid foundation for the sustainable development.

Meanwhile, in order to realize the sustainable development of enterprise, Botong

Thermoelectricity attaches with great importance to the relationship with the surrounding

residents and the society. On the one hand, Botong Thermoelectricity carried out a series of

energy conservation, capacity expansion, environmental technology improvement based on

10 Social Impact


10-3

scientific progress to provide a good living environment; on the other hand, Botong

Thermoelectricity fully functions as an enterprise citizen through proactively organizing and

participating in social environmental protection and volunteer activities, etc. to get the trust and

support from society.

11Auditing Conclusion


11-1

11 Auditing Conclusion

The auditing team has made the following conclusion according to auditing assessment,

verification, evidence taking and auditing result.

11.1 Conclusion

1. Project profile








generated electricity of 16152.72×104KWh/a and consumed standard coal of 0.2294 million

t/a.

2. Pollution prevention and control

(1) Exhaust gas

Boilers 1#~3

# apply internal calcium spray desulfuration, with desulfuration efficiency above

50%; three-electric field electrostatic precipitation will be applied for flue gas with dedusting

efficiency of 99.4%; boiler 4#

applies recirculating fluidized bed boiler+limestone-gysum wet

method desulfuration with the efficiency≥90% and three-electric field electrostatic

precipitation with the design dedusting efficiency of 99.4% and comprehensive dedusting

efficiency as 99.78%; boilers 5#, 6

# apply recirculating fluidized bedboiler+limestone－gysum

wet method desulfuration the efficiency≥90% and three-electric field electrostatic precipitation

with the design dedusting efficiency of 99.6％ and comprehensive dedusting efficiency as

99.8%.

The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power

Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 1~3#. The

second time interval grade B of the Emission Standard of Air Pollutants for Thermal Power

Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 4~5#. The third

time interval standard shall be applied for boiler 6#.

(2) Wastewater

The wastewater discharged by the current project can be divided into water treatment

wastewater, boiler wastewater, circulating water sewage, domestic sewage, other wastewater,

etc. The chemical water system applying reverse osmosis and electric desalting produces

wastewater with high slat content and little organic pollution. Some wastewater is used for

sprinkling, coal handling, etc., while others is used by Botong New Building Materials Co., Ltd.

The circulating tower with high content of suspended matters in circulating water does not

discharge other pollutants directly; the domestic sewage will be discharged after being treated

by the septic-tank; the wastewater meting the Discharge Standard for Municipal Sewerage

System (CJ343-2010) will flow through urban sewage pipe network to Weihai Zhongrong

Anxin Water Resource Development Co., Ltd. Sewage Treatment Plant for treatment and

discharge.

(3) Noise




After mounting a hydrodynamic coupling between the fan and the electromotor to reduce the

intake resistance and afforesting the inner side of the enclosure at southeast boundary, the

measured value of noise at each boundary in daytime and night can meet the Standard of Noise

at Boundary of Industrial Enterprises(GB12348-90) grade 3.

(4) Solid wastes

The solid waste of current project can be divided into domestic garbage and solid production

waste (ash and desulfurized gypsum).

The slag produced from the burning in hearth will be cooled down by slag cooler and be sent to

slag pool for temporary storage; the electrostatic dust collected by electrostatic precipitator will

be sent to ash silo by the pneumatic conveying system and be used by Botong New Building

Materials Co., Ltd. The desulfurized gypsum will be recycled by Botong New Building

Materials Co., Ltd. as the raw material for processing aerated concrete and flyash brick. The

domestic garbage will be collected to Weihai Landfill Site.

3. Environmental management

Botong Thermoelectricity has formulated a complete management system, Environmental

Management System with high environmental management level starting from 2001.

4. Safe production management

The power plant has prepared the Safe Production Management System and is proactively

carrying out safe production examination, self examination and improvement, continuously

improving the safe production management and reducing accidents.

5. Occupational disease prevention and treatment

The power plant has prepared the Occupational Disease Prevention, Treatment and

Implementation Plan and is proactively carrying out prevention, control and elimination of

occupational disease, doing well in occupational disease prevention and treatment, protecting

labor health and the lawful rights.

6. Risk and measures for prevention and control

The power plant has prepared risk and measures for prevention and control to strengthen and

regulate the safety management of hazardous chemicals, ensure the safety of life and property

and the protection of environment.

7. Emergency plan

The power plant has prepared the Environmental Emergency Plan to control the occurrence

and development of emergency, eliminate the threat to personnel and equipment and reduce the

loss to the minimum.

8. Social impact

Botong Thermoelectricity has established a trustworthy relationship with the employees and

will build itself into a environmental-friendly energy base.

9. Total conclusion

According to the environmental auditing analysis in above aspects, Botong Thermoelectricity

prepared detailed pollution prevention and control measures and various regulations, which can

basically meet the requirement of environmental management.

11.2 Measures and suggestions

1. The enterprise shall do well in environmental management according to the requirements

of environmental. Meanwhile, the enterprise is required to regularly carry out environmental

11Auditing Conclusion


11-3

auditing, continuous improvement of environmental management level.

2. Strengthen the management of environmental protection facilities, ensure the normal

operation and processing efficiency of environmental protection facilities, and qualified

discharge of various pollutants.

3. Strengthen the environmental protection education to employees, implement various

labor protective measures, improve the awareness of safety and environmental protection,

ensure the safety and health of employees.

4. Apply mature and effective risk prevention measures, establish accident emergency plan,

strictly implement monitoring measures, prevent or reduce accidents, personal injury and

environmental pollution. Actively carry out safe production month activity, seasonal safety

inspection, strengthen safety management of production, traffic, important projects,

outsourcing projects, implement safety measures, eliminate wrong management practice,

hidden trouble, avoid the occurrence of accident, realize the control of safety production.

5. The enterprise shall strengthen the communication with the regional society based on the

industrial feature and possible environmental impact, and publicize the enterprise profile,

measures for energy conservation and pollutant discharge to the society regularly.

environmental audit report · 2 overview . weihai environmental protection research institute co.,...

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