Tashkent Medical Academy

• Chair: Municipal hygiene and occupational health

• Subject: TSN. Sanitary hygienic inspections of station of aeration on

sewage treatment.

Tasks:

The student has to know:

- Val

ue a

nd legal t

he

nor

ms g

over

ni

ng t

he relati

on

of t

he

pers

on t

o t

he

pers

on, s

ociety a

nd e

nvir

onme

nt.

- To apply basic provisions of each document on the value.

- Features of the organization and to carrying out hygienic and epidemiological action for reduction of an adverse effect of risk factors on a state of health population and environment.

The student has to be able:

- To exercise

the current sanitary

inspection on under control

municipal objects.

- To conduct sanitary and

hygienic examinations of

objects of supervision and

to make the corresponding

registration and reporting

documentation.

Motivation.

The current sanitary inspection on protection of water objects includes:

A) identification of sources of pollution and studying of their influence on a reservoir, water use and health of the population

B) sanitary inspection of constructions on cleaning, tertiary treatment and neutralization of sewage and their rainfall for the subsequent account and certification of objects

C) periodic sanitary control of operation, contents and efficiency of work of treatment sewer facilities with use of data of sanitary inspection and laboratory analysis of sewage

D) periodic (1 time in 3 years) control of observance of conditions of production of sewage on the operating objects

E) development of the plans of measures directed on reduction of pollution of reservoirs, coordination of these plans with the interested organizations and departments.

At sanitary inspection of the treatment plant the health

officer makes the program of the current sanitary inspection

in which includes the following main questions:

1) existence of derogation from the project of treatment

facilities:

2) compliance of the schematic diagram

of treatment facilities to this

amount of sewage:

3) correctness of the device, contents and operation of

clearing constructions, territories, existence of SPZ, its compliance to hygienic

requirements:

4) amount of the arriving sewage,

quality and efficiency of cleaning:

5) observance condition of

production of sewage:

6) check of implementation of

the schedule of preventive repair of

the equipment:

1.stations on sewage treatment

2. name of object, address, departmental subordination.

3. Type, project series, year of development and authors.

4. The location of a site of station in respect of the settlement. Existence and width of SPZ. Site size, its planning and improvement (gardening, road network, zamosheniye, artificial lighting)

5. Qualitative composition of sewage on average daily concentration and their compliance to design data.

6. The station of transfer giving grindings on treatment facilities (is, isn't present). Structure of station of transfer:

- capacity is intended for what period;

- whether there corresponds the hour productivity of pump installations to the maximum hour inflow of drains;

- whether it is provided 50% I reserved reserve pump installations;

- whether it is provided power supply from two independent sources;

- existence of lattices in front of pumps;

- ways of removal and disinfecting the eaderzhannykh on lattices of garbage;

- existence of emergency release, seals on final caps;

- ways of removal of the dumped waters in case of accident and a place of their receipt in a reservoir.

7. The accepted scheme of processing of sewage (on the project, actually).

8. Mechanical cleaning:

- lattices: the device, the mode of removal of the detained substances and their neutralization, a sanitary condition of rooms of lattices (lighting, ventilation), working conditions of the working;

- sand traps: number, type of a way of regulation of time of stay and speed of the movement of waste liquid; compliance of the device sanitary hygienic requirements; sanitary condition of rooms (lighting, ventilation), working conditions of the working;

- peskovy platforms: acceptances loading, way of assignment and tertiary treatment of drainage waters, further use of sand;

- primary settlers: quantity, type, compliance of the device sanitar-no-to hygienic requirements; the actual time of stay of waste liquid, frequency of removal of floating impurity and the dropped-out deposit.

- Septic tank: type quantity of sections, a form material from which is made (a brick, concrete, a tree), compliance of the device to hygienic requirements; estimated and actual time of stay of waste liquid; frequency of removal of a deposit, a way of removal (manual mechanized), a method of neutralization of a deposit (a composting, a zapakhivaniye, export).

. Biological cleaning:

- Aerotenki: quantity, type, compliance of the device to sanitary and hygienic requirements; quantity of steps of cleaning, спсоб mixtures of sewage in an aerotenka; silt dose, weight loading and their compliance to an operating mode aerotenka:

- biofilters: quantity, type, compliance of the device to hygienic requirements, number of steps of cleaning, character of loading material, settlement and actual hydraulic loading; a way of distribution of waste liquid on a surface;

- small-sized and compact installations of full oxidation; quantity, type, estimated and actual time of stay of sewage; fur-coat or, weight loading and their compliance to a construction operating mode; a way of aeration (pneumatic, mechanical, mixed), type of aerators, existence of the spare equipment, a way, stabilization of excess active silt (aerobic, thermal):

- local treatment facilities; quantity, type, compliance of the device to San hygienic requirements; settlement and actual hydraulic loadings, their compliance to soil type, level of standing of ground waters, to average annual temperatures, type and a condition of portioning devices, a species of the cultivated plants, existence of placement of bodies of veterinary sanitary inspection on their cultivation;

- fields of an irrigation, filtration: the total area, type, a way of giving and distribution of waste liquid, a way of data of the cleared waters, planning of a site, existence of reserve cards, compliance of the device to hygienic requirements, settlement and actual loadings, their compliance to type of the soil, extent of sewage treatment, to average annual air temperatures, a depth of ground waters and a species of the cultivated plants, existence of permission of bodies of veterinary and sanitary inspection to cultivation;

- biological ponds: total area, area, appointment, type, number of steps, mode cleaning, compliance of the device to sanitary and hygienic requirements; settlement and actual loading on BPK, the frequency of removal of a deposit and its neutralization.

10.Processing of a deposit.

- metantenka: quantity, the deposit sbrazhivaniye mode, compliance of the device sanitary - to hygienic requirements, a settlement and actual daily dose of loading; actual temperature of a sbrazhivaniye, heat supply;

- ilouplotnitel: quantity, type, compliance of the device to hygienic requirements, settlement, and actual time of stay of sewage;

- silt platforms: quantity, type, a way of branch drainage compliance of the device sanitary - to hygienic requirements, settlement and actual annual loadings and recurrence of blousings and frequency of cleaning of silt platforms;

- vacuum filters and filters - the press: quantity, productivity,

compliance of the device sanitary - to hygienic requirements, a way of neutralization of sand and its use; way of cleaning of the filter; way of regeneration ткан;

- thermal drying: quantity, productivity, compliance of the device sanitary - to hygienic requirements, uses of the dried-up silt.

11. tertiary cleaning:

- filters: quantity, loading material, it, laying, the direction of a filtration, compliance of the device

sanitary - to hygienic requirements; rated and actual speed of a filtration; interwashing period;

way of purification of washing waters;

- filters with ion-exchange pitches: quantity, loading material; compliance of the device sanitary - to hygienic requirements; way of regeneration, utilization of a regenerator;

- biological ponds;

12. Disinfecting: reagent: way of dispensing, existence of a reserve of reagent, condition of its storage; chlorine absorptivity of sewage and the

used doses; contact time; content of residual active chlorine.

13. evaluation of the work of

departmental laboratory on

implementation of technological

control of operation of the treatment plant and its separate constructions,

comparison of data of departmental

laboratory to results of

researches by TsGSEN laboratory.

14. Dignity. a condition

of a reservoir in a place of

production of the

cleared sewage,

15. Existence of household

rooms for working,

existence of sanitary books at the service

personnel, observance of frequency of

passing of medical

examinations.

The new pedagogical technologies used on this occupation:

Camomiles method.

"Camomile" under lines of a camomile is passed round questions on last subjects are written. Each student tears off to himself option of a question and gives a camomile to another. All write down the versions of answers. Then there is a discussion. The wrong answers cross out. By quantity of the correct answers estimate knowledge of students.

Control questions:

1. Depending on the planned task, what sanitary inspections are distinguished?

2. On what the way of sampling of sewage depends?

3. The program of laboratory research of sewage depends on what conditions?

4. What data are necessary for the doctor for drawing up the conclusion about efficiency of treatment facilities?

The recommended literature:

The main:

1. Sh T. Otaboyev T. I. Iskandarov "Kommunal hygiene" T.1994y

2. Municipal hygiene. Under edition of professor Mazayev V. T. Moskva. 2005. Part 1. Publishing house Geotar-Media group.

3. Municipal hygiene. Under edition of professor Mazayev V. T. Moskva. 2007. Part 2. Publishing house Geotar-Media group.

4. Akulov of K.I. Bushtuyeva K.A. "Municipal hygiene" of M. of 1986.

5. "The guide to laboratory researches to municipal hygiene". E. I. Goncharuk M. 1990

6. "Hygiene" Under edition of the prof. Demidenko I.M. 2002.

7. "Kommunal hygiene фанидан amaliya машгулотлар учун a kullanma" under T. I. Iskandarov's edition. T. 2006.

The additional:

1. Laws RUZ, state Standard Specifications RUZ, SanPiNs, KMK, joint venture, orders.

2. Methodical development on EMS.

3. Lecture materials.

4.Methodical development is made by associate professor Sherkuziyeva G. F.