For Proposed 32 MW Co-generation/ Captive Power Plant within … · 2017-01-13 · Rapid Environmental Impact Assessment for the Proposed 32 MW Co-generation/ Captive Power Plant

Environmental

Impact

Assessment

Project Proponent

M/s. JK Tyre & Industries LimitedChennai, Tamil Nadu

EIA Consultant

M/s. Vimta Labs Limited Hyderabad / Coimbatore

QCI/NABET Accredited EIA Consultant

JULY 2016

For Proposed 32 MW Co-generation/ Captive Power Plant

within the existing tyre manufacturing unit at Kolathur Village,

Sriperumbudur Taluk, Kancheepuram district,

Tamil Nadu

EXECUTIVE SUMMARY

Rapid Environmental Impact Assessment for the Proposed 32 MW Co-

generation/ Captive Power Plant within the existing tyre manufacturing unit

at Kolathur Village, Sriperumbudur Taluk, Kancheepuram district, Tamil Nadu Executive Summary

Vimta Labs Limited, Hyderabad/Coimbatore 1

1.0 INTRODUCTION M/s. JK Tyre & Industries Limited (herein after referred to as JKTIL) is an undisputed

market leader in Truck/Bus Radials in India, with 138 selling locations, 4,000 strong dealer

network served by six plants in India and three plants (as JK Tornel) in Mexico. To meet the

growing demand for electricity within the state and to have an uninterrupted steam and

power supply to the tyre manufacturing plant, JKTIL proposes to develop a 32 MW Co-

generation/ Captive power plant within the existing tyre manufacturing unit at Kolathur

village, Sriperumbudur Taluk, Kancheepuram district, Tamilnadu. The total project cost for

the proposed co- generation power plant is estimated at about Rs. 100.0 crores.

As per the latest EIA Notification dated 14th September 2006, the proposed captive power

plant project capacity upto 50MW falls under Schedule. No. 1(d) (Thermal Power

Plants), and categorised under ‘B’ (for Coal based power plants of less than 500 Mega

Watt (MW) capacity) for which Environmental Clearance (EC) from SEIAA, Tamilnadu is

necessary. Inline with new EIA Notification, SEIAA-SEAC meeting was held for determining

TOR on 25th September 2014 and to receive amendment on for the preparation of EIA

report for the proposed co-generation power plant. Based on ToR conditions given by

SEIAA in its letter dated SEIAA-TN/F-625/M-LX/TOR-188/2014 dated 08.10.2014 and its

amendment letter SEIAA-TN/F-625/2012/ToR-Amend/2015 dated 29.10.2015, the EIA

report is prepared covering all the conditions of ToR and its amendments.

1.2 Environmental Setting

The proposed site of 32 MW captive co-generation power plant site is located in the

existing tyre manufacturing plant at Kolathur village. The present land use of the site is

industrial land and is already under the possession of the proponent. The details of

environmental setting are given in Table-1.1. The index map of the project site is shown

in Figure- 1.1 and the study area map of 10-Km is shown in Figure-1.2.

TABLE-1.1

DETAILS OF ENVIRONMENTAL SETTING

S. No. Particulars Details 1 Site co-ordinates

No Latitude Longitude A 12o56.483” N 79o00.922” E B 12o56.464” N 80o00.188” E C 12o56.401” N 80o00.197” E D 12o56.427” N 79o00.926” E

2 Elevation 24–m Above Mean Sea Level (AMSL) 3 Topography Plain Land 4 Seismicity Zone-III as per IS 1893 (Part-1): 2002 5 Present land use Unclassified Land as per DTCP 6 Climate Condition Annual Mean Max Temp : 38oC

Annual Mean Min Temp : 26oC Average Annual Total Rainfall :1213.3-mm





7 Nearest Highway State Highway - 110 connecting Tambaram with Sriperumbudur (0.6-km, South)

National Highway - 4 connecting Chennai with Sriperumbudur (5.5-km, NW)

8 Nearest Railway Station Tambaram R.S. (12.7-km, SE) 9 Nearest Airport Chennai International airport (17.9-km, ENE) 10 Nearest sea coast Bay of Bengal (27.7-km, East) 11 Nearest Sea Port Chennai Port (35.2-km, ENE) 12 Nearest Habitation Amarambedu (0.6-km, WNW) 13 Densely populated area Sriperumbudur (7.4-km, WNW) 14 Nearest water bodies Manimangalam lake (1.4-km, SSE)

Pennalur lake (5.8-km, NW) Chembarambakkam lake (6.0-km, NE) Sriperumbudur Lake (6.7-km, WNW)

15 Protected areas as per Wildlife Protection Act, 1972 (Sanctuaries / National parks / biospheres, etc.)

Nil within 10-km radius

16 Reserved / Protected forests Nallur R.F (3.7-km, NE)

Vandalur R.F (10.1-km, SE) 17 Hills/valleys Nil within 10-km radius 18 Streams/Rivers ---- 19 Defence Installation Nil within 10-km radius 20 Historical places Nil within 10-km radius





FIGURE-1.1

INDEX MAP OF THE PROJECT SITE





FIGURE-1.2

STUDY AREA MAP OF 10-KM RADIUS

(SURVEY OF INDIA TOPOSHEET Nos. 57 O/16, 57 P/13, 66 C/4, 66 D/1 )





2.0 DETAILS OF THE PROJECT 2.1 Size or magnitude of operation

The salient features of the proposed co-generation plant are given in Table-1.2.

TABLE-1.2 SALIENT FEATURES OF PROPOSED POWER PLANT

S. No. Parameter Description 1. Plant Capacity 32 MW 2. Total area allocated for the

plant 3.24 ha (8.0 Acres)

Sr. No.

Land use Area

Acres ha (%) a Plant Area 2.78 1.13 2.73 b Solid waste

storage area 0.62 0.25 0.61

c Coal storage 2.00 0.81 1.97 d Greenbelt area 33.97 13.85 33.39 e Ash Dyke 1.22 0.49 1.19 f Vacant area 16.04 15.77 15.77 Total 101.71 100 100

3. No. of Boilers 3 (Erected in 3 phases) 4. Boiler Capacity Phase I Phase II Phase III Total

55 TPH 80 TPH 80 TPH 215 TPH 5. Fuel Imported Coal 6. Source of Fuel Indonesia 7. Fuel Transportation By sea route upto Ennore port station followed

by the closed truck till plant site 8. Fuel Requirement Phase I Phase II Phase III Total

273 TPD 410 TPD 410 TPD 1,093 TPD 9. Water Requirement 401 KLD 10. Source of Water State Industries Promotion Corporation of Tamil

Nadu Limited (SIPCOT) 11. Cooling System Closed Cooling Water System

12.

Total Waste water generation

280 KLD Process Waste Water- 276.0 KLD Non-process Waste Water (Sewage)- 4.0 KLD

13.

Waste Water Treatment Process Non process Cooling Pond and Guard Pond

Existing Sewage treatment plant of JKTIL

14. Fire Fighting System Adequate fire-fighting systems as per Tariff Advisory Committee (TAC) and OISD guidelines

will be provided. 15. No. of stacks 3 Nos. 16. Stack height (m) 65 70 70 17. Diameter of stacks at top

(mm)

2,000 2,100 2,100

18. Noise Levels Equipment are designed to conform to prescribed noise levels [(<90 dB(A)]





S. No. Parameter Description

19. Ash Generation Phase I Phase II Phase III Total Fly Ash (TPD) 14.4 21.6 21.6 57.6 Bottom Ash (TPD) 3.6 5.4 5.4 14.4

20. Man power Requirement The manpower requirement of power plant

during construction would be 100 and during operation period is estimated to be 108 employees.

3.0 BASELINE ENVIRONMENTAL STATUS

3.1 Meteorology

Baseline data generation was undertaken for meteorological variables during winter season

from 1st December 2014 to 28th February, 2015. It has been found that the maximum

temperature goes upto 37°C during the month of February, while the minimum temperature

is observed to be 19°C during both December and January. The average humidity in the area

ranges from 27% to 94%. The average annual rainfall is observed to be 101.3 mm.

Generally, moderate to heavy winds prevail throughout the year.

3.2 Soil Quality

Eight locations within 10-km radius of the plant boundary were selected for soil sampling.

The soil samples were collected during winter season and analyzed for physical and chemical

characteristics. It has been observed that the texture of soil is mostly ‘Gravelly clay’ in the

study area. It has been observed that the pH of the soil quality ranged from 6.6 – 7.8,

indicating that the soil is usually ‘slightly acidic’ to ‘slightly alkaline’ in nature. From the data,

it is observed that the Nitrogen, Phosphorous and Potassium content in the soils are in the

range of 276.2- 424.2 kg/ha, 75.9 – 94.4 kg/ha and 81.9- 121.9 kg/ha respectively.

3.3 Ambient Air Quality

Ambient Air Quality Monitoring (AAQM) stations were set up at six locations with due

consideration to the meteorology. Ambient air quality monitoring was carried out with a

frequency of two days per week for three months at all locations for the study period (1st

December 2014 to 28th February, 2015). The maximum and minimum concentrations for

PM10 were recorded as 82.5 g/m3 and 71.1 g/m3 respectively. The maximum and minimum

concentrations of PM2.5 were recorded as 38.9 - g/m3 and 30.6 g/m3 respectively.

The maximum and minimum SO2 concentrations were recorded as 16.3g/m3 and 11.3

g/m3. The maximum concentration of NOx was recorded to be 35.9 g/m3 and the

minimum concentration was observed to be 23.5 g/m3. The ambient air quality results

reveal that all the monitoring results are well within the standards prescribed by Central

Pollution Control Board (CPCB) for rural and residential zone and Industrial zone.





Prediction of impacts on air environment has been carried out by employing American

Meteorological Society/ EPA Regulatory Model Improvement Committee (AERMIC)

dispersion model based on steady state gaussian plume dispersion, designed for multiple

point sources for short term has been used for predicting the ground level concentrations.

The computations deal with major pollutants like Particulate Matter, Sulphur dioxide and

Nitrogen dioxide. The ground level concentrations predicted from the modeling are given in

Table-5.

TABLE-1.3

SHORT TERM MAXIMUM INCREMENTAL CONCENTRATIONS

Parameters Concentration (µg/m3)

Distance (km)

Direction

PM 0.34 1.3 SW SO2 2.47 1.3 SW NOx 0.86 1.3 SW

TABLE-1.4

RESULTANT CONCENTRATIONS DUE TO INCREMENTAL GLC's

(Worst case scenario)

Pollutant Concentration (g/m3)

Standards Baseline Incremental Resultant

PM 82.5 0.34 82.84 100 SO2 16.3 2.47 18.77 80 NOx 35.9 0.86 36.76 80

A perusal of previous sub-section reveal that the maximum incremental short-term 24 hourly

ground level concentrations for PM, SO2 and NOx are likely to be encountered in the

operation of the power project are 0.34, 2.47 and 0.86 g/m3 respectively occurring at a

distance of about 1.3 km in the SW direction.

The worst case maximum resultant 24 Hourly concentrations for PM, SO2 and NOx after

implementation of the proposed activity are 82.84, 18.77 and 36.76 µg/m3 respectively.

According to the above presented results, it can be stated that the impact of PM from

proposed expansion would be negligible in core or buffer zone of the project.

Even though, the incremental and resultant concentrations of SO2 and NOx are significant to

certain extent, they are well within the NAAQ limits and hence, the AAQ levels after

implementation of the proposed activity will remain within the permissible limits. Hence, it

can be stated that the AAQ of the area will be within the permissible limits of respective

zones.

3.4 Water Quality

Two (2) surface water and six (6) ground water samples were collected and were analyzed

for various parameters to compare with the standards for drinking water as per IS: 10500





for ground water sources and IS: 2296 (Class-C) for surface water sources. The ground

water quality is observed to be good as all the parameters are well within the limits

prescribed by IS: 10500. Analysis of surface water samples indicated that no contamination

was present in the samples and all the values were found to comply with the specifications of

IS: 2296.

3.5 Noise Level Survey

The noise monitoring has been carried out at ten locations within the study area for

determining the noise levels. One reading for every hour was taken for 24 hours. The noise

levels recorded in day times were observed to be in the range of 58.0 dB(A) at industrial

area, 50.6 dB(A) to 89.4 dB(A) at residential area and 49.6 dB(A) at commercial area. At

night, the noise levels were recorded as 54.4 dB(A) for industrial area, 35.4 dB(A) to 44.8

dB(A) at residential area and 45.7 dB(A) in the commercial area. The values were found to

be well within the permissible limits.

3.6 Ecological Survey

The area is a degraded scrub land intermixed with agriculture fields. There are two reserved

forests in the study area. The region is urbanized with developmental activities that include

industries, railway lines and roads. From the field observations, it can be concluded that

there are no Wildlife sanctuaries, National parks/biosphere reserves in 10 km radius from the

proposed site boundary. As per the records of the Botanical Survey of India there are no

plants of conservation importance in the study area.

3.7 Demography and Socio- economics

As per 2001 census, the current population in 10-km radius of project site is estimated to

be about 2,75,693 persons. In total population, males constitute about 50.60% and

females about 49.40% of the total population. The average household size constitutes about

4.05 persons. The average literacy rate is 75.04%. The main workers constituted 33.15% of

the total population. The marginal workers and non-workers worked out to be about 7.38%

and 59.47% of the total population respectively. It is seen that non- workers are the

predominant population.

3.8 Land use Studies

Remote sensing satellite imageries were collected and interpreted for the 10-km radius

study area for analyzing the Land use pattern of the study area. The Built- up area is

7907.73 ha, which is about 23.71% of the study area. The Dense/ Open forest area is 731

ha, which is around 2.19% of the study area. Water bodies occupy about 17.64 % (5883

ha) of the study area. The barren land is 634 ha, which is about 1.90% of the study area.

Double crop land is 3151 ha whereas single crop land is 5385 ha, which is around 9.45%

and 16.14% of the study area respectively.





4.0 ANTICIPATED IMPACTS AND MITIGATION MEASURES

4.1 Impacts during Construction Phase

During construction phase, the land will be excavated for building basements and

laying roads. However, the earthen material will be used in the construction and

elevation of low lying areas.

Apart from localized construction impacts at the plant site, no adverse impacts on soil

in the surrounding area are anticipated.

The impact on the air environment due to the activities carried out in the erection

phase will be for short duration and confined within the project boundary and is

expected to be negligible outside the plant boundaries.

The overall impact on water environment during erection phase due is likely to be

short term and insignificant.

The proposed site does not need any clearance of trees as the land is already a barren

and infertile land.

4.2 Impacts during Operation Phase

4.2.1 Ambient Air quality

Being a coal based power project, the important air pollutants are Particulate Matter (PM),

Sulphur dioxide (SO2) and Oxides of Nitrogen (NOx).Even though, the incremental and

resultant concentrations of SO2 and NOx are significant to certain extent, they are well within

the NAAQ limits and hence, the AAQ levels after implementation of the proposed activity will

remain within the permissible limits. The impact of fugitive dust emissions from the proposed

units on air quality of the region is insignificant. The details of stack emissions are presented

in Table- 1.5.

TABLE- 1.5

STACK DETAILS AND EMISSION RATES

Sl. No.

Description Unit Stack 1 Stack 2 Stack 3

1. MOC --- RCC RCC RCC

2. Stack attached to --- Boiler 1 Boiler 2 Boiler 3

3. Stack height m 65 70 70

4. Stack diameter at top m 2.0 2.1 2.1

5. Flue gas velocity m/sec 25 25 25

6. Flue gas temperature °C 140 140 140

7. Density of flue gas Kg/Nm3 1.3 1.3 1.3

8. Gas flow rate Nm³/s 65.94 72.70 72.70

9.

Emission Rate

Sulphur dioxide (SO2) g/s 28.44 42.71 42.71

Particulate matter

(SPM)

g/s 37.92 56.94 56.94

Oxides of Nitrogen (NOx)

g/s 3.3 3.64 3.64





4.2.2 Impact on Water Resources and Quality

Total wastewater (including process and non-process) generation in the project will be

about 280 m3/day. Out of 280 m3/day of wastewater generated, non-process wastewater

ie., sewage, is about 4.0 m3/day and it will be treated in the existing Sewage Treatment

Plant of JKTIL. The process wastewater (276 m3/day) will be properly treated in the

Effluent Treatment plant and the entire treated wastewater will be reused to ensure zero

discharge from the plant. The storm water in the project area will be collected through storm

water drains and collected in the rain water collection pond. The stored storm water will be

utilized in the plant operation resulting in conservation of fresh water. Thus, no impact on the

natural water bodies is envisaged.

4.2.3 Impact of Solid Wastes

Ash is the major solid waste to be generated from a coal based thermal power plant. The

quantity of Fly ash generated will be 57.6 TPD and 14.4 TPD of Bottom ash will be generated.

ESPs with efficiencies over 99.99% shall be provided to prevent ash dispersions into ambient

air. Fly ash will be collected from ESP hoppers in dry from and supplied to potential ash users

depending on the demand. The bottom ash will be stored in an ash dyke with an impervious

HDPE layer. The sludge from sewage treatment plant will be dried, crushed, pelletized and

used as manure for greenbelt. Canteen/sanitary waste will be composted and used as manure

for greenbelt development.

4.2.4 Impact on Noise Levels

The main noise generating stationary sources from the power plant will be pumps,

compressors and boilers. The noise levels at the source for these units will be in the range of

80-90 dB(A). The predicted noise levels at the boundary due to various plant activities will be

ranging in between 32 to 36 dB(A). The incremental noise levels will be less than 40 dB(A) at

all the surrounding habitations. However, provision of acoustic barriers and shelters, greenbelt

development and provision of Personal Protective Equipments (PPE)s will be implemented to

mitigate any adverse impacts due to noise levels.

4.2.5 Impact on Ecology

It is proposed to develop greenbelt around the plant site and implementation of eco

development along with local people will enhance the greenery of the area. Hence, no

significant adverse impact is envisaged on terrestrial ecology. The impacts on aquatic ecology

due to proposed expansion activity would be negligible as the treated effluents from the

plant will meet the prescribed standards prior to final discharge.

4.2.6 Impact on Socio- economics

No shifting of human habitations are envisaged for siting of the proposed units, as the land is

a barren land which has been acquired by the proponent. Hence, no resettlement activities

are envisaged. The project will also help in generation of the indirect employment apart from

direct employment. This will be a positive socio-economic development for the region.





5.0 ENVIRONMENTAL MANAGEMENT PLAN

5.1 Environment Management Plan during Construction Phase

5.1.1 Air Quality Management

The activities like site development, grading and vehicular traffic contribute to increase in SPM

and NOX concentration. The mitigation measures recommended to minimize the impacts are:

Water sprinkling in construction area;

Asphalting of roads in the plant area;

Proper maintenance of vehicles and construction equipment; and

Tree plantation in the area earmarked for greenbelt development.

5.1.2 Water Quality Management

The soil erosion at site during heavy precipitation contributes to the increase in suspended

solids. The mitigation measures recommended to minimize the impacts are:

Sludge drying beds to treat sanitary waste water; and

Utilizing the wastewater in greenbelt development.

5.1.3 Noise Level Management

Operation of construction equipment and vehicular traffic contribute to the increased noise

level. Recommended mitigation measures are:

Good maintenance of vehicles and construction equipment;

Restriction of construction activities to day time only;

Plantation of trees around the plant boundary to attenuate the noise; and

Provision of earplugs and earmuffs to workers.

5.1.4 Ecological Management

The measures required to be undertaken to minimise the impact on the ecology are:

Transplantation of existing matured trees will be undertaken and transplanted in the

area earmarked for greenbelt development; and

The greenbelt having tree density of 2000 trees/ha will be developed. 5.2 Environment Management Plan during Construction Phase

During operation phase, the impacts on the various environmental attributes should be

mitigated using appropriate pollution control equipment. The Environment Management Plan

prepared for the proposed project aims at minimizing the pollution at source.





5.2.1 Air Pollution Management

Fugitive and stack emissions from the power plant will contribute to increase in concentrations

of PM, SO2 and NOX pollutants. The mitigative measures recommended in the plant are:

Installation of ESPs of 99.9% efficiency to limit the SPM concentrations below 50

mg/Nm3;

Provision of required heights of stack for wider dispersion of gaseous emissions;

Dust suppression and dust extraction system will be provided at transfer points of

conveyor system;

Conveyor belt will be closed to prevent dust generation;

Provision of water sprinkling system at material handling and storage yard;

The ash will be transported by closed bulkers;

Asphalting of the roads within the plant area; and

Development of Greenbelt around the plant to arrest the fugitive emissions.

5.2.2 Water Pollution Management

The wastewater will be generated from De- Mineralization Plant, Boiler and cooling tower in

the power plant. Additionally, domestic wastewater from canteen and employees wash area

will also be generated. The recommended measures to minimise the impacts and

conservation of fresh water are:

Existing STP to treat domestic sewage from plant;

Treating the wastewater in the ETP for recycle/reuse within the plant site;

Treated wastewater for greenbelt development;

Lining of guard pond suitably to prevent any seepage into ground to avoid any

groundwater contamination;

5.2.3 Noise Pollution Management

In the process, various equipments like pumps, auxiliary cooling tower, compressors, etc.,

generate the noise. The recommendations to mitigate higher noise levels are:

Equipment will conform to noise levels prescribed by regulatory authorities;

Provision of acoustic enclosures to reduce noise generated from equipments like

pumps, and turbine;

Provision of thick greenbelt to attenuate the noise levels; and

Provision of earplugs/earmuffs to the workers working in high noise level area.

Regular tuning and maintenance of equipments and replacement of worn-outs parts.

5.2.4 Solid Waste Management

Fly ash of quantity 57.6 TPD will be sold to cement manufacturing plants and bottom ash of

quantity 14.4 TPD will be sold to brick manufacturing units. Domestic wastes of amount 27

kg/day shall be segregated and given to civic bodies. Sludge of amount 0.10 TPM shall be

treated, pelletized and used for greenbelt development.





6.0 PROJECT BENEFITS

The beneficial impact of proposed co-generation power plant on the civic amenities will be

substantial after the commencement of project activities. The basic requirement of the

community needs will be strengthened by extending healthcare, educational facilities to the

community, building/strengthening of existing roads in the area. The project will create

opportunities for direct and indirect employment.

7.0 CONCLUSIONS

The proposed power plant has certain level of marginal impacts on the local environment.

However, development of this project has certain beneficial impact/effects in terms of bridging

the electrical power demand and supply gap and providing employment opportunities that will

be created during the course of its setting up and as well as during the operational phase of

the hjtjeth eproject the project.

Documents

For Proposed 32 MW Co-generation/ Captive Power Plant within … · 2017-01-13 · Rapid Environmental Impact Assessment for the Proposed 32 MW Co-generation/ Captive Power Plant