shree-300 mw tpp executive summary
TRANSCRIPT
SUMMARY ENVIRONMENTAL IMPACT ASSESSMENT REPORT
for
2 x 150 MW THERMAL POWER PLANT at Andheri Deori, Tehsil Masuda
District Ajmer (Rajasthan)
MARCH 2010
BY SHREE CEMENT LIMITED
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CONTENTS 1.0 Project Description Page 3
2.0 Description of Environment Page 4
3.0 Anticipated Environmental Impact & Mitigation Measures Page 5
4.0 Environmental Monitoring Plan Page 8
5.0 Additional Studies Page 9
6.0 Project Benefits Page 9
7.0 Environmental Management Plan Page 12
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1.0 Introduction
Shree Cement Limited proposes to establish 2 x 150 MW thermal power plant within the
existing cement plant premises at Andheri Deori, District Ajmer in Rajasthan State. The
existing Cement Plant is spread over 231.94 hectare land, out of which only 21.6 hectares will be used to establish the power plant. The project cost of power plant is
Rs.1250 Crores. 130 people will be directly employed in the power plant. The location
map is shown in Figure 1.
Groundwater consumption for existing cement plant is 1600 KL/day. Water consumption
for existing power plant is 4000 KL/day. Water requirement for existing domestic and
utility is 800 KL/day. Total existing ground water consumption is 6400 KL/Day. Shree
Cement proposes to install waste heat recovery system in the cement plant kiln. This
will reduce the water consumption in the gas conditioning tower by 650 KL/day. Shree
Cement also proposes to replace the water cooled condensers with air cooled
condensers in the existing power plants. This will reduce the water consumption by 3000
KL/day. 2000 KL/day water will be required for the proposed power plant. The water
saved will be used for various expansion works including proposed 300 MW TPP.
Therefore no additional groundwater will be required to run the proposed power plant
rather around 900 KL/day water will be saved by implementing various water saving
measures.
Mixture of pet coke and coal will be used as fuel. The fuel requirement is 2668 tons/day.
The mixture ratio of pet coke and coal will be with 3.5% sulphur content. Lead, arsenic
and mercury are not present in the fuel mixture. Ash content of fuel will be 12.5%,
volatile matter content will be 8.3% and carbon content will be 65.6%. Chromium content
in the fuel will be less than 0.01%. Pet coke will be purchased from oil refinery. The pet
coke and coal source will be either imported or indigenous. Both materials will be
transported to plant site using rail and road.
The mixture of pet coke and coal will be fired in boilers. Boiler feed water will get
converted to steam, which will be used to run turbines and generate electricity. The
process flow diagram is shown in Figure 2.
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The project activity falls under category A 1(d) of EIA notification 2006. The Ministry of
Environment & Forests, Government of India has prescribed the Terms of Reference for
EIA Study vide letter No. J-13012/83/2009 – IA. II (T) dated 2nd December 2009. The
draft EIA report has been prepared as per the TOR for Public Hearing.
2.0 Description of Environment
Baseline environmental data generation of study area was carried out during the period
1st December 2009 to 28th February 2010. Data have been generated by following the
approved procedures of the Ministry of Environment & Forests and the Central Pollution
Control Board. Study area of 10 km radial distance around the site has been considered
for the EIA study. Map showing the plant and study area, as well as environmental
monitoring locations is shown in Figure 3.
Meteorology: Meteorological data for entire winter season have been generated at the
project site. The predominant wind direction is from North. The average wind speed
ranges from 3.2 to 4.2 kmph. Calm conditions accounts for 24.4% time. Daily mean
temperature varied from 7.2oC to 26.6oC. The relative humidity varied from 34% to 65%.
The annual rainfall is 568 mm.
Ambient Air Quality: PM2.5, PM10, SO2, NO2 O3 and Hg levels were measured at five
locations during the winter season. Upwind and downwind locations and location where
maximum GLC is anticipated have been selected for measurement. The observed 24-
hour average PM10 level in the study area was found to vary from 39 to 56 µg/m3; PM2.5
from 17 to 26 µg/m3, SO2 from 5.0 to 6.9 µg/m3 and NO2 from 9.0 to 13.8 µg/m3. The
observed 8-hour average ozone level in the study area varied from 36 to 54 µg/m3.
Mercury was not detected in any of the samples. The ambient air quality of the study
area meets the prescribed National Ambient Air Quality Standards (November 2009);
PM2.5 – 60 , PM10 - 100 µg/m3; SO2 - 80 µg/m3, NOx - 80 µg/m3 and O3 - 100 µg/m3.
Ambient Noise Quality: Noise quality has been monitored at five different categories of
study area. The observed noise level (Leq) ranges from 46.4 dB (A) to 53.5 dB (A)
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during day time and 41.0 dB (A) to 43.2 dB (A) during the night time. The noise levels
are found to be within the national standards for residential and commercial area (45
dBA during night time and 55 dBA during day time,).
Water Quality: Eight samples of ground water have been collected from project site and
surrounding villages. The water quality is found to be meeting the prescribed standard
(BIS 10500). No metallic or bacterial contamination has been found in the ground water
samples.
Soil Quality: Soil samples from surrounding agriculture fields were collected for
analysis. The soil quality is sandy type. The soil contains less organic matter, nitrogen,
potassium and phosphorus.
Land use: 53% of the land area is covered under agriculture. 30% land is under rocks
and waste land. Built-up area is 5% rest of the area comes under other uses. The
satellite imagery showing the land use pattern of study area is shown in Figure 4.
Sensitive Ecosystem: No ecologically sensitive area like national park, wildlife
sanctuary, biosphere reserve, forests, wetland are present in the 10 km radius of project
site. No species of plants and animals in the study area were found to be threatened,
rare or endangered.
Demography: There are 121 villages around the proposed project site. The population
as per 2001 Census records is 259607 (for 10 km radius buffer zone). Out of the total
population 17.7% are Scheduled Caste and 0.8% is Scheduled Tribe. The literacy rate of
study area is 60%.
3.0 Anticipated Environmental Impact and Mitigation Measures
Impact Assessment study has been carried out to identify the potential impacts of the
project on the environment. Based on the study various measures have been proposed
to mitigate adverse impacts on the environment during construction and operation
phases of the project. These include the following.
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220 m tall stack will be provided to reduce ground level concentration of air
pollutants. The diameter of each flue will be 3.5 m, exit gas temperature will be
140oC and exit gas velocity will be 22 m/s.
Installation of high efficiency electrostatic precipitators for control of particulate
matter emission. The SPM emission will be kept within 50 mg/Nm3, which is
international standard.
Use of limestone dust (444 tons/day) to control SO2 emission. SO2 emissions will
be kept below 2000 mg/Nm3, which is international standard.
Installation of dry low NOx burners (DLNB) for control of NOx emissions. NOx
emission will be kept below 700 mg/Nm3, which is international standard.
Adoption of air cooled condenser cooling system to avoid water consumption and
hot water discharge.
Proper treatment of effluents and recycling the treated water for various purposes
such as gardening, ash handling, dust suppression, etc.
Ash generation would be 1128 tons/day. 100% ash utilization in cement making
from day one. .
Regular environmental monitoring measures and immediate intervention in case
of any discrepancy.
Development of an extensive greenbelt around the power plant to mitigate air
and noise pollution.
Water Environment: Air cooled condensers will be used, hence there will be no hot
water blowdown. DM plant regeneration wastewater will be taken to neutralization pit
and then to Central Monitoring Basin (CMB). Boiler blowdown and other wastewater
from plant drains will be taken to CMB. The quality of outlet water from CMB will be
checked using online monitors for pH, conductivity, temperature, turbidity, dissolved
solids and dissolved oxygen. The water will be reused for dust suppression. No
wastewater will be discharged outside the plant premises. Domestic wastewater will
be taken to septic tanks and soak pits. The storm water drain will be provided with
sedimentation pits and oil-water interceptors. The storm water will be discharged into
nearby nalla, and thereafter it will be collected using check dam. Spent oil and
lubricants will be collected in drums and given to authorized recyclers. Rainwater
harvesting pits will be constructed and rainwater from rooftop and other paved areas
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will be diverted for recharging the groundwater. Such measures will be adequate to
protect the water environment.
Air Environment: Particulate matter, sulphur dioxide and oxides of nitrogen are the
main pollutants generated from the power plant. For control of fugitive emissions water
sprinklers will be used. Dust emissions from boilers will be controlled using Electrostatic
Precipitators. The SPM emission will be kept below 50 mg/Nm3. 220 m tall stack will be
provided for wide dispersal of flue gases. SO2 emission will be reduced using limestone.
Limestone will also reduce NOx emissions and trap the chromium. The gypsum sludge
will be reused in cement making. Water spraying will be done to suppress the dust
generated during construction activity. All internal roads will be made pucca. All roads
and shop floors will be cleaned regularly. Appropriate ventilation system will be provided
in all work areas including bunkers. Ozone friendly refrigerants will be used inside the
plant. All process parameters will be optimized for energy conservation. Greenery has
been already developed on 33% land area. Mathematical modeling studies proved that
the ambient air quality will remain within the National Ambient Air Quality Standards.
Such measures will be adequate to protect the air environment.
Noise Environment: The compressors, rotating machines, mill operations, turbines,
movement of trucks and plant machinery are the major sources of noise. Movement of
trucks and dumpers will be properly scheduled to minimize construction noise. All
activities will be carried out inside sheds and buildings. Turbine will be provided with
acoustic enclosure. Sound absorbing material will be provided in the room where both
the source and receiver are present. In noisy work areas soundproof duty rooms will be
provided. Workers working in noisy areas will be given ear plugs. Mathematical modeling
studies proved that the ambient noise quality will remain within the National Noise
Quality Standards. Such measures will be adequate to protect the noise environment.
Land Environment: Ash will be collected in dry form in silos. 100% ash will be utilized in
cement making. Commercial garbage will be segregated and recyclable materials will be
given to kabadis. Biodegradable materials like kitchen waste will be composted. No
plastic materials will be handled inside the plant. Used batteries will be given back to
dealer, while purchasing the new batteries. Ash will be reused in cement making. No
solid wastes will be dumped on land. Such measures will be adequate to protect the land
environment.
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Ecology: Fugitive emission from the plant will be controlled using Bag Filters. For
control of stack emission ESP will be stalled. Flue Gas will be dispersed using tall
stacks. All air emissions will be kept within the prescribed standards. Wastewater, ash
and gypsum will be reused. Greenery development will be intensified, all available open
spaces will be made green. Such measures will be adequate to protect the surrounding
ecology.
Workers Health and Safety: Workers will be provided clean drinking water, canteen
and toilet facility. Regular training and awareness programs will be conducted.
Exposures to dust, noise, heat, mechanical injury, fire in coal-pet coke storage are the
hazards identified. Workers will be given mask, ear plugs, goggles, gloves, boots, etc.
The existing hospital is equipped with doctors, medicine, ambulance and other medical
equipment to take care of emergency and first aid cases. The workers will be checked
for any clinical complaints and abnormal symptoms by the in-house medical department.
Such measures will be adequate to protect the workers healthy and safety.
4.0 Environmental Monitoring Plan
Environmental Management Department (EMD), under the direct control of Chief
Executive with full-fledged environmental laboratory and qualified scientists and
engineers exists. EMD is responsible for the following functions:
I. Regular monitoring of :
1. Stack emissions, fugitive emissions, work environment and report any abnormalities
for immediate corrective measures.
2. Ambient air quality at upwind and downwind direction of plant and at three locations at
plant boundary.
3. Re-circulating water quality and testing the inlet and outlet water quality of CMB.
4. Ground water quality inside plant, and surrounding villages.
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5. Noise testing of equipment, noise monitoring at the plant boundary, work areas and
nearest habitation.
6. Quantity & quality of ash and their reuse in cement making.
7. Development and maintenance of greenbelt and greenery within the plant
boundary and in surrounding villages and barren land.
5.0 Additional Studies
Risk Mitigation Plan: Light Diesel Oil will be stored in tanks for use as supporting fuel
during start-up, during shut down and low load conditions. LDO will be stored in 2 x 100
KL Tanks. The oil tanks will be designed and located as per standards of Oil Industry
Safety Directorate. Onsite emergency response plan will be modified in consultation with
the District Administration. Approval of Chief Controller of Explosives will be taken for the
layout and design of oil storage tanks. Elaborate fire fighting system with fire
extinguishers, hydrant system, sprinkler system, pumps and pipeline network will be
provided as per the recommendation of Loss Prevention Association and Tariff Advisory
Committee. Water for fire fighting will be taken from the water reservoir.
6.0 Project Benefits
The project will create additional employment generation for 130 people. During the
construction phase, 500 people on daily average will be employed for a period of 24
months. Shree Cements will employ local people for plant construction and
operation, depending upon availability of skilled and unskilled persons. Several other
indirect employment opportunities will be created in the surrounding area. Transport
business, vehicle drivers and attendants, workshops, grocery and retail, medical,
school, coaching centers, technical institutes, restaurants, self employed persons like
tailors, carpenters, plumbers, electricians, etc will get indirect job opportunity.
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Shree Cement Limited has taken up several initiatives to improve living conditions of the
underprivileged and make positive difference in their lives. SPL has started its
community development and social welfare activities since 2000 and till date Rs.10
crores have been spent for different CSR activities, which include infrastructure
development, education, health care, sanitation, drinking water facility, capability building
activity, promotion of social and cultural activity and watershed development activity.
The following schemes will be further strengthened under the CSR plan of Shree
Cements Limited.
1. Continue to coordinate and tie-up with the nearby Industrial Training Institutes
(ITI) for training the local youths as electricians, plumbers, carpenters, masons,
workshop technicians, fitters, welders, drivers, tailors, etc. The company will
continue providing scholarships.
2. Shree Cements will promote traditional handicrafts like embroidery, paintings,
batik and block prints, silver work, etc. The company will encourage brotherhood,
fraternity and religious feelings among villagers and will continue to contribute
organizing religious functions and construction / repair of religious places.
3. Continue to organize sports tournaments by involving the local villagers etc in
nearby villagers.
4. Continue to provide economically weak students with scholarships and study
materials and development of infrastructures.
5. Continue to contact the nearby school administration to assess the requirement
of computers, books, study materials, furniture, building materials, safe drinking
water and toilet facility. The company will provide the materials through the BDO
and Gram Panchayat.
6. Financial assistance will be provided to economically weak but exceptionally
bright students to take admission in Technical and Management Institutes.
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7. The company will continue mobile dispensary facility in surrounding villages to
provide free consultation and medicines to needy people. The company will
organize cataract operation camps, AIDS awareness campaign at regular
intervals. Company will continue to provide financial assistance for development
of Hospitals.
8. The company will take up road side plantation in the area as well provide free
saplings to the villagers.
9. The company will continue to develop new roads.
10. The company will continue to provide assistance in religious fare, to arrange
religious programme, calmatives and draught etc.
The CSR Department and Liaison Department of Shree Cements will coordinate with the
BDO, Gram Panchayat, ADM and DM of the area for encouraging the local people to
form self-help groups to obtain benefits under the CSR program of the company.
7.0 Environmental Management Plan
Environmental Management Plan (EMP) for effective management of environmental
impacts and protection of the environment through appropriate management procedures
has been developed. In order to implement the recommended mitigation measures and
institutionalise the EMP, budgetary provision of Rs.50 crores for capital expenditure has
been made. Recurring annual expenditure will be about Rs.5 crores.
EMD will ensure that all air pollution control devices, effluent treatment plant and water
re-circulating systems function effectively. Schemes for resource conservation (raw
materials, water, etc), rainwater harvesting and social forestry development will be taken
up by EMD. Environmental awareness programs for the employees will be conducted.
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Workers will be given personal protective equipment and their health check-up done
every year. EMD will also ensure cleanliness and industrial hygiene in the plant. EMD in
association with the safety department will undertake full review of the potential hazard
scenarios during plant commissioning. The review will ensure enforcement of the
proposed safeguards for pollution abatement, resource conservation, accident
prevention and waste minimization. The implementation of EMP would ensure that all
elements of project comply with relevant environmental legislation throughout its life
cycle.
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Figure -1 Location Map
RAJASTHAN
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Figure -2 Process Flow Diagram
Figure- 3 Map Site & Surrounding
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EMTRC Consultant Private Limited
B-16, Plot 10-A, East Arjun Nagar, Delhi-32 Telefax: 911122387792, 911122301172
[email protected], wesite www.emtrc.com