shree-300 mw tpp executive summary

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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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Page 1: Shree-300 MW TPP Executive Summary

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

Page 2: Shree-300 MW TPP Executive Summary

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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

Page 3: Shree-300 MW TPP Executive Summary

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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