form 1 application form - Environment Clearance

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Construction, operation or decommissioning of the Project involving actions, which will ...... not only help in identify
Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

FORM 1 APPLICATION FORM I Sl. No. 1.

Basic Information Item Name of the Project

:

2.

S. No. in the schedule

:

3.

Proposed capacity / area/length/ tonnage to be handled /command area/ lease area / number of wells to be drilled

:

4.

New/Expansion/Modernization

:

5.

Existing Capacity / Area etc.

:

6. 7.

Category of Project ie. “A” or “B” Does it attract the general condition? If yes, please specify.

: :

8.

Does it attract the specific condition? If yes, please specify. Location

:

No.

Plot/Survey/Khasra No.

:

Total Land Area : 110 Acres

Village

:

Tehsil District State Nearest railway station/airport alongwith distance in kms.

: : : :

Sithurnatham, Sirupuzhalpettai & Eguvarpalayam Gummidipoondi Thiruvallur Tamil Nadu Railway Station - Gummidipoondi – 5.2 km Airport - Chennai- 53 km

Nearest Town, City, District Headquarters alongwith distance in kms.

:

9.

Details ARS Metals Private Limited. Coal Based Thermal Power Plant - Proposed Augmentation/Expansion 1 (d) – Category > 500 MW Coal based Power Plant. Existing Environmental Clearance 2 x 60 MW

Proposed Change / Expansion 1 x 60 MW (Operating) 1x60 MW Augmentation to 1x 180 MW 1 x 300 MW (Additional)

Existing Land Proposed Additional 60 Acres 50 Acres Category “A” Yes, Tamil Nadu / Andhra Pradesh state boundary within 10 km radius.

S. Nos. _____________.

10. 11.

Form 1

1

Town - Gummidipoondi - 6.1 km District Headquarters – Thiruvallur – 39 km

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

:

Gummidipoondi

13.

Village Panchayats, Zilla Parishad, Municipal Corporation, Local Body (complete postal addresses with telephone nos. to be given). Name of the applicant

:

ARS Metals Private Limited

14.

Registered Address

:

D-109, 2nd Floor, LBR complex, Annanagar (E). Chennai- 600102.

15.

Address for correspondence

:

D-109, 2nd Floor, LBR complex, Annanagar (E). Chennai- 600102.

Name Designation (Owner/Partner/CEO) Address

: :

Rajesh Bhatia Director D-109, 2nd Floor, LBR complex, Annanagar (E). Chennai. 600 102.

12.

Pin Code

16.

17. 18.

19. 20. 21.

E-mail Telephone No. Fax No. Details of Alternative Sites examined, if any. Location of these sites should be shown on a toposheet. Interlined Projects Whether separate application of interlined project has been submitted If yes, date of submission If no, reason

:

Whether the proposal involves approval/clearance under:

[email protected] 044-43500687 044-43500597 Not Applicable. Proposed Expansion

: :

-

: :

-

:

No

:

No

:

No

(a) The Forest (Conservation) Act, 1980 (b) The Wildlife (Protection) Act,

1972 (c) The C.R.Z Notification, 1991 22.

23.

Form 1

Whether there is any Government Order / Policy relevant / relating to the site? Forest land involved (hectares)

2

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

24.

Whether there is any litigation pending against the project and / or land in which the project is proposed to be set up (a) Name of the Court (b) Case No. (c) Orders/directions of the Court, if any and its relevance with the proposed project.

II

Activity 1.

:

Nil

Construction, operation or decommissioning of the Project involving actions, which will cause physical changes in the locality (topography, land use, changes in water bodies, etc.)

S. No.

Information/Checklist confirmation

Yes/No

1.1

Permanent or temporary change in land use, land cover or topography including increase in intensity of land use (with respect to local land use plan)

No

1.2

Clearance of existing land, vegetation and buildings? Creation of new land uses? Pre-construction investigations e.g. bore houses, soil testing? Construction works?

No

Details thereof (with approximate quantities /rates, wherever possible) with source of information data • Environmental Clearance obtained for 2 x 60 MW. • Of which 1 x 60 MW is under operation. • The other 1 x 60 MW construction of which is yet to start and is now proposed to augment this capacity to 180 MW • An additional 300 MW is also proposed. Copy of Environmental Clearance, & Consent to Establish is enclosed in Annexure I & Annexure II. Hence, No Change in Land Use, Land Cover or Topography. -

No Yes

Please refer Annexure-III

Yes

Demolition works? Temporary sites used for construction works or housing of construction workers?

No Yes

Additional construction of shop floors etc will be predominantly of steel structure. There are a total of 40 – sheds constructed with Brick Walls and Asbestos roofs with facility for sanitation, bathing and also a canteen facility.

1.3 1.4 1.5 1.6 1.7

The workers Quarters is also provided with drinking water. Form 1

3

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

1.8

1.9 1.10 1.11 1.12 1.13 1.14 1.15

1.16 1.17

1.18

1.19

1.20

Form 1

Above ground buildings, structures or earthworks including linear structures, cut and fill or excavations. Underground works including mining or tunneling? Reclamation works? Dredging? Offshore structures? Production and manufacturing processes? Facilities for storage of goods or materials? Facilities for treatment or disposal of solid waste or liquid effluents? Facilities for long term housing of operational workers? New road, rail or sea traffic during construction or operation? New road, rail, air waterborne or other transport infrastructure including new or altered routes and stations, ports, airports etc?

Yes

Closure or diversion of existing transport routes or infrastructure leading to changes in traffic movements? New or diverted transmission lines or pipelines?

No

About 300 workers reside at site. Layout enclosed. Please refer Annexure-IV

No

-

No No No Yes

Please refer Annexure – V

Yes

Please refer Annexure – IV

Yes

-

No

-

Yes

Increase in no. of trucks resulting in increased traffic. The present movement of coal is by road. However, New rail route for transportation of coal from Gummidipoondi to Site is under process wherein in principle approval has been obtained. --

Yes

Yes

4

The proposed evacuation will be from Thervoikandigai, which is 7 kms from site and hence a new transmission line will be erected.

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Impoundment, damming, culverting, realignment or other changes to the hydrology of watercourses or aquifers? Stream crossings?

No

-

Yes

Abstraction or transfers of water from ground or surface waters?

Yes

Arani River, which is 8.0 km in South from the Plant Site. Water Consumption in KLD

1.24

Changes in water bodies or the land surface affecting drainage or run-off?

No

1.25

Transport of personnel or materials for construction, operation or decommissioning? Long-term dismantling or decommissioning or restoration works? Ongoing activity during decommissioning which could have an impact on the environment? Influx of people to an area in either temporarily or permanently? Introduction of alien species? Loss of native species or genetic diversity? Any other actions?

Yes

1.21

1.22 1.23

1.26

1.27

1.28

1.29 1.30 1.31

Form 1

Existing For 1 x 60 MW 180 MW & 300 MW 48 250 • A Rain Water Reservoir constructed for harvesting rainwater through storm water drains. • Capacity of reservoir is 70000 m³. • Additional rain water reservoir proposed to be constructed. • However, Ground Water Clearance has also been obtained for drawl upto 800 KLD. Copy of which is enclosed in Annexure – VI.

Proposed Expansion /Augmentation within/adjacent to the existing plant site. Enclosed is Drainage & Water bodies Map in Annexure – VII. The existing transport facilities will be made use of.

No

-

No

-

Yes

No No

About 200-Nos of workers will be employed upon implementation of expansion activity. -

-

-

5

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

2.

Use of Natural resources for construction or operation of the Project (such as land, water, materials or energy, especially any resources which are nonrenewable or in short supply):

S. No.

Information/Checklist confirmation

Yes/No

2.1

Land especially undeveloped or agricultural land (ha)

No

2.2

Water (expected source & competing users) unit: KLD

Yes

Details thereof (with approximate quantities /rates, wherever possible) with source of information data Proposed expansion / augmentation within/adjacent to the existing plant site. A Rain Water Reservoir constructed for harvesting rainwater through storm water drains. Capacity of reservoir is 70000 m³. Additional rain water reservoir proposed to be constructed. However, Ground Water Clearance has also been obtained for drawl upto 800 KLD. Copy of which is enclosed in Annexure – VI.



• •



Water Consumption in KLD

2.3

2.4

2.5 2.6

2.7

Form 1

Minerals (MT)

Construction material - stone, aggregates, sand / soil (expected source – MT) Forests and timber (source – MT) Energy including electricity and fuels (source, competing users) Unit: fuel (MT), energy (MW) Any other natural resources (use appropriate standard units)

Existing 1 x 60 MW 48

For 180 MW & 300 MW

Existing 1x60MW 1000T/D

Proposed 180 MW 2571T/D

Yes

250

Upon Expansion 298

Coal Proposed 300 MW 4107T/D

Upon Expansion 7678T/D

Yes

Predominantly Steel Structures.

No Yes

Auxiliary Power Requirement of the Plant will be met from its own generation.

No

-

6

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

3.

Use, storage, transport, handling or production of substances or materials, which could be harmful to human health or the environment or raise concerns about actual or perceived risks to human health.

S. No.

Information/Checklist confirmation

3.1

None Use of substances or materials, which are hazardous (as per MSIHC rules) to human health or the environment (flora, fauna, and water supplies) Changes in occurrence of disease None or affect disease vectors (e.g. insect or water borne diseases) Yes Affect the welfare of people e.g. by changing living conditions?

3.2

3.3

3.4

Vulnerable groups of people who could be affected by the project e.g. hospital patients, children, the elderly etc., Any other causes

3.5 4.

Yes/No

Details thereof (with approximate quantities /rates, wherever possible) with source of information data This is a coal based power plant and hence does not include any chemicals listed in MSIHC rules.

-

None

Betterment in the socio – economic conditions of the areas surrounding the plant site and improved availability of power. General improvement in standard of living. -

No

-

Production of solid wastes during construction or operation or decommissioning (MT/month)

S. No.

Information/Checklist confirmation

Yes/No

4.1 4.2

Spoil, overburden or mine wastes Municipal waste (domestic and or commercial wastes) Hazardous wastes (as per Hazardous Waste Management Rules) Other industrial process wastes

No No

Details thereof (with approximate quantities /rates, wherever possible) with source of information data -

No

-

Yes

The solid waste will be in the form of Fly Ash & Bottom Ash.

4.3

4.4

Existing 60MW 50T/D

Proposed 180MW 155T/D

Proposed 300MW 246.42T/D

Upon Expansion 451.42 T/D

4.5

Surplus product

No

-

4.6

Sewage sludge or other sludge from effluent treatment

Yes

Dried Sewage Sludge from Filter Press of STP – 0.2 T/M

Form 1

7

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

4.7 4.8

Construction or demolition wastes Redundant machinery or equipment Contaminated soils or other materials Agricultural wastes Other solid wastes

4.9 4.10 4.11 5.

No No

-

No

-

No -

-

Release of pollutants or any hazardous, toxic or noxious substances to air (Kg/hr)

S. No.

Information/Checklist confirmation

Yes/No

5.1

Emissions from combustion of fossil fuels from stationary or mobile sources Emissions from production processes Emissions from materials handling including storage or transport Emissions from construction activities including plant and equipment

Yes

Details thereof (with approximate quantities /rates, wherever possible) with source of information data Please refer Annexure – VIII

Yes

Please refer Annexure – VIII

Yes

Please refer Annexure IX

Yes

Emission from diesel operated pumps, concrete mixers, vibrators and excavators. However these equipments will be maintained properly to ensure minimum emissions, more-over construction activity will be for a short duration of period. This is a coal based power plant and hence will not have any odour nuisance, however dust suppression by way of sprinklers etc., is proposed as in Annexure – IX. -

5.2 5.3 5.4

Yes

5.5

Dust or odours from handling of materials including construction materials, sewage and waste

5.6 5.7

Emissions from incineration of waste No No Emissions from burning of waste in open air (e.g. slash materials, construction debris) Emissions from any other sources

5.8

Form 1

8

-

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

6.

Generation of Noise and Vibration, and Emissions of Light and Heat

S. No.

Information/Checklist confirmation

Yes/No

6.1

From operation of equipment e.g. engines, ventilation plant, crushers

Yes

6.2 6.3

From industrial or similar processes From construction or demolition

Yes Yes

6.4 6.5

From blasting or piling From construction or operational traffic From lighting or cooling systems From any other sources

No Yes

6.6 6.7 7.

Risks of contamination of land or water from releases of pollutants into the ground or into sewers, surface waters, groundwater, coastal waters or the sea

S.No.

Information/Checklist confirmation

7.1

From handling, storage, use or spillage of hazardous materials From discharge of sewage or other effluents to water or the land (expected mode and place of discharge)

7.2

No -

Details thereof (with approximate quantities /rates, wherever possible) with source of information data The main sources of noise in the Thermal Power Plant are noise generated by the Turbine[93 dB(A)], Fans [85 dB(A)], Pumps [90 dB(A)], Generators[70 dB(A)] etc and loading/ unloading activities of different power plant processes for producing power and all the noise generated will be within the stipulations of the OSHA standards. Same as above. During construction, operation of construction equipments will result in intermittent noise. Noise due to movement of trucks carrying raw materials/products. -

Yes/No Details thereof (with approximate quantities /rates, wherever possible) with source of information data No There are no hazardous materials used or generated. No Waste Water Generation in KLD Existing 1 x 60 MW

Boiler Blow Down D.M. Plant Regeneration Waste Domestic Sewage

Upon Expansion

35 6

For 180 MW & 300 MW 190 42

4.8

6.4

11.2

225 48

Boiler Blowdown & DM. Plant regeneration waste water is at present treated in 2-stage RO Plant. Upon Expansion, • Daily water requirement will be 68 KLD. •

Form 1

9

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

About 273 KLD will be recycled. Boiler Blow down & DM Plant Regeneration Waste Water from proposed Augmentation/ Expansion will also be treated in 2-stage RO Plant. • 230 KLD is used for boiler make-up /D.M Plant and 43 KLD used for Ash Quenching/ Coal Dust Suppression/ Greenbelt. • Domestic Sewage is treated in Sewage Treatment Plant & used for greenbelt. Hence, resulting in Zero Discharge Main fuel is Coal. The source of emission is burning of fuel. These operations are provided with adequate height of stacks, ESP with 99.99% efficiency, Optimum air fuel ratio to limit excess air for control of NOx emission, Low sulphur and low ash content fuel, greenbelt development etc. These measures to have least impact on the ambient environment, the details of various air pollution control equipments are given in Annexure X. Stack characteristics are given in Annexure VIII. • •

7.3

By deposition of pollutants emitted to air into the land or into water

Yes

7.4 7.5

From any other sources Is there a risk of long term build up of pollutants in the environment from these sources?

No No

8.

Risk of accidents during construction or operation of the Project, which could affect human health or the environment

S.No.

Information/Checklist confirmation Yes/No

8.1

From explosions, spillages, fires etc from storage, handling, use or production of hazardous substances

Yes

8.2 8.3

From any other causes Could the project be affected by natural disasters causing environmental damage (e.g. floods, earthquakes, landslides, cloudburst etc)?

Yes Yes

Form 1

10

Details thereof (with approximate quantities /rates, wherever possible) with source of information data HSD/FO used for start-up, which will be subject to requirements as per Indian Explosive Act, HAZOP Studies & Risk Assessment. Details Enclosed in Annexure XI -

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

9.

Factors which should be considered (such as consequential development) which could lead to environmental effects or the potential for cumulative impacts with other existing or planned activities in the locality

S.No.

Information/Checklist confirmation

Yes/No

9.1

Lead to development of supporting utilities, ancillary development or development stimulated by the project which could have impact on the environment e.g.: • Supporting infrastructure (roads, power supply, waste or waste water treatment, etc.) • housing development • extractive industries • supply industries • other Lead to after-use of the site, which could have an impact on the environment Set a precedent for later developments

Yes

9.2

9.3

9.4

III

Have cumulative effects due to proximity to other existing or planned projects with similar effects

2.

3.

Form 1

• • •

Increase in local commerce. Increase in Ancillary Services. Increased requirement for housing etc.

No

-

Yes

Use of finfan coolers for Auxiliary Cooling System. 100% utilization of Fly ash. -

Yes

Environmental Sensitivity Name/ Aerial distance (within 15 Identity Km.) Proposed project location boundary Yes Pulicat Lake – 14 kms

S.No. Areas

1.

Details thereof (with approximate quantities / rates, wherever possible) with source of information data This is an existing operation, and area is already well developed with supporting infrastructures, services etc.

Areas protected under international conventions, national or local legislation for their ecological, landscape, cultural or other related value Yes Areas which are important or sensitive for ecological reasons - Wetlands, watercourses or other water bodies, coastal zone, biospheres, mountains, forests Yes Areas used by protected, important or sensitive species of flora or fauna for breeding, nesting, foraging, resting, over wintering, migration

11

Pulicat Lake – 14 kms

Pulicat Lake – 14 kms

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

4. 5.

6.

7. 8. 9.

10.

11.

12.

IV

Inland, coastal, marine or underground waters State, National boundaries

Routes or facilities used by the public for access to recreation or other tourist, pilgrim areas Defense installations Densely populated or built-up area Areas occupied by sensitive man-made land uses (hospitals, schools, places of worship, community facilities) Areas containing important, high quality or scarce resources (ground water resources, surface resources, forestry, agriculture, fisheries, tourism, minerals) Areas already subjected to pollution or environmental damage. (those where existing legal environmental standards are exceeded) Areas susceptible to natural hazard which could cause the project to present environmental problems (earthquakes, subsidence, landslides, erosion, flooding or extreme or adverse climatic conditions)

Yes

Araniyar River – 8.0 kms

Yes

Tamil Nadu-Andhra Pradesh border, which is 5.0 kms away in North. NH-5 - 5.2 Km - East SH-52 – 3.5 Km – SW Southern Railway – 6.0 km East Please refer Annexure –XII

Yes

None None Yes

Yes

Palavakkam RF – 5.5 kms Araniyar – 8.0 kms

None

-

None

-

This application is requesting for Amendment

Proposed Terms of Reference for EIA studies

“I hereby given undertaking that the data and information given in the application and enclosures are true to the best of my knowledge and belief and I am aware that if any part of the data and information submitted is found to be false or misleading at any stage, the project will be rejected and clearance give, if any to the project will be revoked at our risk and cost”. For ARS Metals Pvt. Ltd., Date : 13/02/2014 Place : Chennai Rajesh Bhatia, Director. ARS Metals Pvt. Ltd. D-109, 2nd Floor, LBR complex, Annanagar (E). Chennai- 600102. Signature of the applicant With Name and Full Address (Project Proponent / Authorised Signatory) Form 1

12

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

List of Annexures Annexure I

Copy of Environmental Clearance

Annexure II

Copy of Consent to Establishment

Annexure III

Soil Investigation Report

Annexure IV

Plant Layout

Annexure V

Process Description

Annexure VI

Copy of CGWA Clearance & Water Balance Diagram

Annexure VII

Drainage and Water Bodies Map

Annexure VIII

Stack Emission Characteristics

Annexure IX

Fugitive Emission Control

Annexure X

Air Pollution Control

Annexure XI

On-site & Off-site Emergency Plan

Annexure XII

Administrative Set-up Map

Annexure

13

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – I COPY OF ENVIRONMENTAL CLEARANCE

Annexure

14

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

15

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

18

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

19

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

20

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

21

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

22

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – II COPY OF CONSENT TO ESTABLISHMENT

Annexure

23

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Consent to Establish

Annexure

24

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

25

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

26

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

27

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

29

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

31

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

32

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

33

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

34

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Annexure

35

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – III SOIL INVESTIGATION REPORT

Annexure

36

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

PARAMETER

LOCATION : POWER PLANT SITE

REMARKS

NW SIDE

SW SIDE

pH

7.5

7.2

Normal

EC MS/Cm

0.15

0.13

Normal

Available N (Kg/Acre)

63

60

Low

Available P205 (Kg/Acre)

7

6

Low

Available K20 (Kg/Acre)

60

55

Medium

Red

Red

-

Good

Good

-

Loamy sand

Loamy sand

-

Clay %

10

11

-

Silt %

7

6

-

Sand %

83

85

-

Organic Carbon %

0.14

0.15

Very Low

Organic Matter %

0.31

0.28

Very Low

Copper PPM

2.7

2.5

High

Manganese PPM

8.6

8.8

High

Zinc PPM

0.84

0.86

High

Iron PPM

13.8

13.5

High

Physical Characteristics Colour Drainage Soil Texture

Micronutrient Status

Annexure

37

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – IV PLANT LAYOUT

Annexure

38

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Plant Layout

Annexure

39

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – V PROCESS DESCRIPTION

Annexure

40

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Process Description The details of equipments are as follows

1

Boiler

2

Steam Turbine

3

Electrical Generator

4

Coal Handling

5 6 7 8

Electro-Static Precipitator Ash Handling Condenser Auxiliary Cooling System

9

Chimney

10

HFO/LDO Storage Tanks

11

Switchyard, Generator Transformer and Station Transformer

1 x 235.13 TPH (Existing 1 x 60 MW) 1 x 563 TPH (from 60 MW to 180 MW) 1 x 950 TPH (Proposed 300 MW) CFBC/Pulverized Coal fired, natural circulation boilers. 1 x 60 MW, 1 x 180 MW & 1 x 300 MW condensing Steam Turbine. There will three generator with rated 60 MW, 11KV, 50 Hz, 3 ph and 0.8 PF 180MW, 300MW, Ground hoppers, stacker reclaimers and double stream conveying system. 6 Stage ESPs for each Boiler Dry Ash Collection Air Cooled Condenser Finfan coolers for cooling of turbine, generator and boiler auxiliaries Single chimey of 145 m height for 60 MW & 180 MW & 132 m height for 300 MW 2 x 300 KL HFO tanks and 2 x 150 kL LDO tanks 230 KV System

The power plant would use coal as fuel in its boilers. The plant would consist of 235.13 TPH (Existing), 593 TPH & 950 TPH (Proposed) CFBC/pulverized Coal fired natural circulation boiler producing superheated steam at 93 Kg/cm2 and at 540ºC together with associated auxiliaries.

The steam turbine unit consists of 540 MW (Gross) [60 MW Existing, 180 MW & 300 MW Proposed] condensing steam turbine generator together with Air cooled condenser and associated auxiliaries. Based on average gross calorific value of coal as 4000 Kcal/kg, the plant would require about 7678 TPD of Imported Coal, Annexure

41

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

The steam generators of the proposed Thermal Power Plant will be of CFBC/pulverized fuel firing with Imported coal. The steam generator will consist of Air cooled furnace, radiant, convection super heaters, economizer, air pre heaters etc. Soot blowers will be provided at strategic locations and will be designed for sequential fully automatic operation from the Unit Control Room. The steam generator will be provided with coal mills along with individual raw coal feeders and coal bunkers. The steam generators will be equipped with facilities for Heavy Furnace Oil / LDO firing for start-up and for flame stabilization at low loads. Electrostatic precipitator (ESP) with fly ash hoppers will be provided for the collection of fly ash. The steam turbine will drive the turbo generator at 3000 rpm. The steam generators will be designed as semi – outdoor equipment while the turbine generator set with all auxiliary and feed cycle equipment will be located indoors. The Figure below shows the simplified process flow diagram of the proposed Thermal power plant.

Annexure

42

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Proposed Flow Diagram of Thermal Power Plant

COAL

WATER POWER MILL

BOILER

TURBINE

GENERATOR

ESP

AIR COOLED CONDENSOR CHIMNEY

Annexure

SILO SALE / DISPOSAL

43

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Furnace The furnace will be designed such that the heat release rates will be optimum at 100% steam generator maximum continuous rating (SGMCR) condition. The configuration of the furnace will be such that flame impingement on any section of the furnace is avoided over the entire load range.

The furnace will have hopper bottom with stainless steel seal plates which will be suitable for connection to a water impounded ash hopper. A suitable sealing arrangement for connecting to the water impounded ash hopper will also be provided.

The circulation system will ensure adequate circulation ratio during rapid startups and load changes to prevent overheating of the water wall tubes with maximum possible heat flux in the furnace. Suitable allowances will be provided for all the water wall tubes to counter the erosion conditions.

Boiler

The boiler will be CFBC/pulverized coal fired, single drum, with membrane wall construction, balanced draft boiler natural circulation semi outdoor type. Superheat of the steam is controlled by inter-stage spray water attemperation.

The final superheated steam at a pressure of 93 Kg/cm2 and at 540ºC is supplied to steam turbine unit through HP steam piping.

Steam Turbine Generator

The steam turbine will be designed to meet the requirements of the latest IEC standard. It will be designed for quick start-up rates and to withstand rapid load

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Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

fluctuations without causing undue thermal stresses and strains in the components of steam turbine. Suitable rotor and casing heating devices to meet this requirement if required will be provided. Steam turbine will be provided with aesthetic and acoustic enclosure. The Steam Turbine will have the following systems for its optimum performance and safe operation;



Steam admission valves



Turning gear



Steam turbine gland steam sealing system



Steam turbine lubricating system



Oil coolers



Steam turbine governing system and accessory equipment



Emergency over speed trip device



Steam turbine protection system



Initial pressure regulator



Protection against water induction and over speeding



Exhaust temperature limiting equipment



Pressure relief diaphragms



Vacuum breaker valves



Steam turbine supervisory equipment



Automatic Turbine Run-up System (ATRS)



Steam Turbine By-pass System



Air cooled Condensor



Condensate Extraction Pumps and Accessories



Closed Feed Water Heaters and Accessories



Boiler Feed Pumps

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – VI GROUND WATER CLEARANCE & WATER BALANCE DIAGARA

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Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

WATER BALANCE All Values are in KLD

Ground Water /Rain Water Reservoir

36

Boiler Make-up 35 1 x 60 MW

200

Boiler Make-up 190 1 x 180 MW & 1 x 300 MW

68

225

Raw Water 298

Cooling Pond I Cooling Pond II

225 230

6

42

DM PLANT 1 x 60 MW DM PLANT 1 x 180 MW & 1 x 300 MW

6 48 42

Neutralization Pit

273 Guard Pond

6

Domestic Consumption 1 x 60 MW

4.8 STP

8

Domestic Consumption 1 x 180 MW & 1 x 300 MW

6.4 Greenbelt

230

RO Plant

Ash Quenching/ Coal Dust Suppression/ Greenbelt

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43 43

RO REJECT

ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – VII DRAINAGE & WATER BODIES MAP

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – VIII STACK EMISSION CHARACTERISTICS

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ARS, Gummidipoondi

Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Stack Emission Characteristics

Stack No Material of Construction Stack attached to

1 RCC 1 x 60 MW & 1 x 180 MW 145 5250 475.45 22.0 140 1.3 42.71 0.5 384.38 427.08 21.5

Stack height (m) Stack diameter (mm) approx.. Volume Flow Rate (m3/s) Velocity of flue gas (m/s) Temperature of flue gas (°C) Flue gas specific volume ( kg / Nm³) Fuel Consumption (Kg/s) Sulphur content (% w/w) Emission rate – NOx (g/s) Emission rate – SO2 (g/s) Emission rate – SPM (g/s)

1 RCC 1 x 300 MW 132 6000 593.74 21.0 140 1.3 47.92 0.5 427.81 475.35 29.69

Existing Stack - 145 m (60 MW & 180 MW) Stack Height Calculation for 1 x 300 MW The daily consumption of coal is around 4107 Tonnes The rate of SO2 emission due to usage of coal is calculated as given below Sulphur content = 0.5% S = (4107 x 0.5/100) = 20.535 T/D SO2 = 20.535 x 2 T/D = 41.07 T/D = 1711.25 kg/hr SO2 emission = 1711.25 kg/hr = 475.35 g/s Stack height calculation: H = 14 Q0.3 Where, H = height of the Stack Q = SO2 Concentration in Kg/hr. Hence H = 14 x (1711.25)0.3 = 14 x 9.332 = 130.65 m The stack height proposed is 132 meters.

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Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

ANNEXURE – IX FUGITIVE EMISSIONS CONTROL & ANNEXURE – X AIR POLLUTION CONTROL

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Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Fugitive Emissions To control fugitive emissions from process units in the plant, the following measures are already in place. •

Tarring of roads inside the factory.



Preventive maintenance of valves and other equipments.



Green belt on all sides within the project boundary, and community plantation around the unit with help of local area development authorities have already been done.



Ambient air quality and stack/fugitive emissions monitored regularly.



In-plant training provided to the plant personnel on operation and maintenance of dust collectors, techniques of dust emission measurements, particle size analysis etc.



Effective operation and maintenance of pollution control system is ensured to contain the emissions/keep them within the CPCB limits



A good house keeping consisting of simple, obvious task of cleaning up spills, removing accumulations around processing equipment and in general keeping things neat and clean form a part of normal operation and maintenance procedure

Measures for arresting fugitive dust emissions along with the envisaged pollution control equipments are adequate and will help to have a healthy and cleaner environment inside the plant thereby improve the productivity and the efficiency of the workers as well as that of plant machinery.

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Augmentation from 60 MW to 180 MW & Proposed Additional 300 MW

Air Pollution Control Devices

The following environmental protection or pollution control systems have already been considered for mitigation of impacts on Air Environment.



145 m & 132 m tall stacks for flue gas emission.



Space provision for retrofitting FGD (Flue Gas Desulfurization) systems.



High efficiency ESPs to reduce SPM level in the exhaust gas to