Executive Summary - West Bengal Pollution Control Board

Indian Oil Corporation Ltd.
Executive Summary
For
PROPOSED INSTALLATION OF FEED PREPARATION UNIT (FPU)
FOR CATALYTIC DEWAXING UNIT (CDWU) AT HALDIA REFINERY
In
District: Purba Medinipur, West Bengal
Envirotech East (P) Limited
An ISO 9001:2008, 14001:2004 & OHSAS:18001:2007
Bengal Ambuja Commercial Complex
UN F13, 1050/1, Survey Park, Kolkata 700 075, India
Ph: (033) 2418 8127/8128/8601, e-mail: [email protected]
web: www.envirotecheast.com
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 1
EXECUTIVE SUMMARY
1.0 INTRODUCTION
Haldia refinery is the fourth in the chain of the existing seven
refineries of Indian Oil Corporation Ltd (IOCL) in the country located
at Guwahati, Digboi, Barauni, Haldia, Baroda, Mathura and Panipat.
Haldia refinery is located on the bank of the river Hoogly at Haldia in
East Midnapur district of the state of West Bengal. The refinery was
commissioned in 1974. The refinery handles imported crudes, mostly
from Middle East countries, Nigeria and Malaysia. The refined
products help meet the demand of the eastern region by road, rail as
well as through Haldia-Barauni-Kanpur and Haldia-MourigramRajbandh pipelines.
Haldia refinery was initially designed for a capacity of 2.5 million
metric tonnes per annum (MMTPA) and was subsequently modernised
and debottlenecked for capacity augmentation and improvement of
product pattern. The refinery now has two Crude Distillation Units
(CDU) with the processing level of 7.5 MMTPA.
Haldia Refinery proposes to install Feed Preparation Unit (FPU) for
CDWU. The estimated capacity of the proposed UCO Vacuum
Fractionation Unit (Feed Preparation Unit, FPU) shall be 650 TMTPA.
With the implementation of the proposed facility, it is envisaged that
the refinery shall be able to produce 100% Gr-III LOBS (of
70N/150N/500N grades).
Minor piping modifications shall be required in the High-pressure
section of CDWU to enable processing of neat desulphurized waxycuts ex FPU and modifications in low-pressure section (vacuum
column of CDW) for enabling production of Gr-III LOBS.
M/s Envirotech East Pvt. Ltd. have conducted an Environmental
Impact Assessment (EIA) for the proposed project and formulated an
appropriate Environmental Management Plan (EMP) for such
expansion project.
Executive Summary
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 2
2.0 SITE LOCATION
Haldia Refinery is located at Haldia, district Purba Medinipur in the
state of West Bengal. No additional land will be required as the
proposed Feed Preparation Unit will be installed in the vacant plot
(Area: 3600 m2), available near the existing OHCU within the refinery
complex. Its geographical coordinates are Latitude 22°0241.54N and
Longitude 88°0625.30E with mean sea level 26 ft.
Nearest Railway Station is Durgachak which is about 5.5 km away
from the project site. Hooghly river is within 1.0 km distance from the
project site and Haldi river is about 6.0 km away from the project site.
Tamluk (Dist. HQ) is about 34.0 km (aerial distance) from the project
site. The nearest airport “Netaji Subhash Chandra Bose Airport”,
Kolkata is located about 75 km (aerial distance) from the project site.
3.0 PROJECT HIGHLIGHTS
The principal features or highlights of the proposed Feed Preparation
Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at Haldia Refinery
under study are as follows:
Location
Haldia in East Midnapur district of West
Bengal.
Land requirement
No additional land will be required as
the proposed Feed Preparation Unit will
be installed in the vacant plot (Area:
3600 m2), available near the existing
OHCU within the refinery complex.
Raw water
Requirement &
Source
Power
Requirement &
Source
Cooling system
Around 51.8 m3/hr, which will be
met from the existing water supply
system of the refinery.
0.72 MW, which will be met from the
existing power supply system of the
refinery.
Source of cooling water ( 2686 m3/hr.)
is the existing OHCU Cooling tower,
which will be augmented by addition of
one extra cell (3000 m3/hr. capacity)
and
accessories.
Totalrequisite
5 m3/hr.,
which will undergo
necessary treatment in the existing
ETP before final discharge through the
existing system.
Effluent Generation,
Treatment & Disposal
SO2 Emission
Executive Summary
An additional
proposed FPU.
20
kg/hr.
from
the
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 3
4.0 BASELINE ENVIRONMNETAL SCENARIO
The area falling within the radius of 10 km around the Haldia
Refinery of M/s IOCL at Haldia, District Purba Medinipur in West
Bengal has been considered as study area. On-site environmental
quality monitoring was carried out from 15th March, 2014 to
14th June, 2014.
4.1
Meteorology
The monthly minimum and maximum temperatures recorded on-site
during the aforesaid monitoring period varied between (15.5-23.0)C
and (37.5-41.5)C respectively with overall minimum and maximum
temperatures being 15.5C and 41.5C respectively.
The monthly minimum and maximum relative humidity recorded onsite during the said monitoring period varied between (25.0-57.0)%
and (76.0-84.0)% respectively, the overall minimum and maximum
being 25.0% & 84.0% respectively.
During the said monitoring period, the monthly mean wind speed
measured on-site varied between 5.2 km/hr to 7.0 km/hr. The overall
mean wind speed during the period was 6.1 km/hr. The predominant
wind directions are from South and South-West corner.
4.2
Ambient Air Quality
Ambient air quality was monitored at eight (8) locations in and around
the project site.
The overall mean of 24-hourly average values of PM10, PM2.5, SO2,
NO2, CO, HC & benzene in the area (mean of all the 8 locations) were
61.07 g/m3, 25.70 g/m3, 11.02 g/m3, 25.47 g/m3, 0.81 mg/m3,
1.49 ppm and 2.24 g/m3 respectively.
4.3
Water Quality
Water samples were collected and analyzed at eight (8) locations to
assess the surface water quality in the study area. Water samples
were collected from eight (8) locations to assess the baseline status of
the ground water quality of the study area.
The pH value of the collected Hoogly river water samples was found of
7.3-7.5. Dissolved Oxygen was observed 5.9-6.2 mg/l. The Total
Dissolved Solids were found 1340-1393 mg/l while total Hardness
was found 646-653 mg/l. Calcium was found of 136-140 mg/l.
Executive Summary
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 4
Sulphate, Nitrate and Chloride were observed 124-130 mg/l, 1.2-2.2
mg/l and 610-631 mg/l respectively. Iron & Zinc contents were found
0.09-0.10 mg/l & 0.22-0.24 mg/l respectively. Total Alkalinity was
found 268-290 mg/l.
The pH value of collected six pond water samples was found in the
range of (6.8-7.8). Dissolved Oxygen was observed in the range of (5.56.3 mg/l). Total Dissolved Solids were found in the range of 376-620
mg/l while Total Hardness was found in the range of 238-430 mg/l.
Calcium was found varying in the ranges of 65-136 mg/l. Sulphate,
Nitrate and Chloride were observed in the ranges of 28-63 mg/l, 2.87.3 mg/l and 110-178 mg/l respectively. Iron & Zinc contents were
found in the ranges of 0.24-0.48 mg/l & 0.12-0.45 mg/l respectively.
Total Alkalinity was found 163-320 mg/l.
The pH value of collected eight ground water samples was found in
the range of (6.8-7.6). Total Dissolved Solids were found in the range
of 570-790 mg/l while Total Hardness was found in the range of 255487 mg/l. Calcium and Magnesium was found varying in the ranges
of 90-136 mg/l, 21-39 mg/l. Sulphate, Nitrate and Chloride were
observed in the ranges of 23-59 mg/l, 0.46-1.56 mg/l and 150-229
mg/l respectively. Iron & Zinc contents were found in the ranges of
0.38-0.71 mg/l & <0.05 mg/l respectively.
Conclusion can be drawn in the light of the overall analysis made so
far that both the surface & the ground water in the study area is free
of any kind of industrial and urban pollution and has been found to
be generally fit for human consumption.
4.4
Noise
A total of 11 locations around the proposed project were selected for
the measurement of ambient noise levels.
During the day time, the equivalent noise levels were found to vary in
the range of (56.1-69.2) dB (A) while in the night time, the equivalent
noise levels were observed to be varying in the ranges of (45.3-56.5)
dB (A).
4.5
Ecology
The study area is found to have a good vegetation cover due to helpful
climatic conditions and good soil quality in the area. There are
Executive Summary
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 5
naturally growing plants, vegetation and grasses. The overall floral
composition in the whole study area is quite rich.
4.6
Demography and Socio-economy
The 10 km radius study area around the proposed project comprises
of three blocks namely Sutahata-I, Haldia & Nandigram and Haldia
municipality under district Purba Medinipur. A total of 67 villages fall
under the study area.
The study area is mainly rural and semi-urban in nature and
moderately populated with the total population of 3,64,129 (as per
2011 Census). Scheduled Caste (SC) and Scheduled Tribe (ST)
population is about 17.88% and 0.51% of the total population
respectively. The overall literacy rate is about 77.2%. In the major
portion of the study area principal language is Bengali. The principal
staple food is rice.
5.0 ENVIRONMENTAL IMPACTS OF PROPOSED PROJECTS
5.1
Impacts on Air Quality
Stack emission would be constituted of mainly SO2. Other emissions
are negligible. There will be only one stack, which will be attached to
Feed Preparation Unit.
As recommended by CPCB, GLCs at various receptor locations within
10 km radius have been computed for the three months’ period (15th
March, 2014 – 14th June, 2014) representing the summer season,
based on the hourly meteorological data of this period. The
computation has been made applying Industrial Source Complex
(ISC3) model, developed by United States Environmental Protection
Agency (USEPA), which is most widely used and also recommended by
CPCB (PROBES/70/1997-98).
The maximum of the predicted GLCs of SO2 is about 4.93 g/m3,
which will occur in ‘NE’ direction at a distance of about 0.8 km. w.r.t.
the proposed stack.
The predicted maximum GLC of SO2 due to the operation of the
proposed project is within the prescribed limits. Therefore, there is
insignificant impact due to the operation of the proposed project on
the Air Quality of the area.
Executive Summary
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
5.2
ES - 6
Impacts on Water Quality
Operation of the proposed units will generate about 5 m3/hr. of
excess effluent. This effluent will be subjected to necessary treatment
in the existing Effluent Treatment Plant (ETP) to amend the quality of
effluent to regulatory requirement before discharge into river Hooghly.
As the effluent will be completely treated and its quality is expected to
be similar to the level achieved now, no impact on the water quality of
the receiving water body is envisaged.
5.3
Impacts on Soil
There will be no solid waste generation from the proposed project.
Thus, there will be no impact on soil quality of the area.
5.4
Impacts on Land Use
The proposed development will take place in the vacant plot (Area:
3600 m2), available near the existing OHCU within the refinery
complex, so there will not be any impact on the land use pattern of
the area.
5.5
Impacts on Biological Environment
The surrounding area has substantial vegetation in the form of village
orchards, roadside trees and agriculture. If the gaseous emission is
controlled properly, there will not be significant impact. There will be
sufficient plantation of trees at the plant site. All these measures, if
implemented properly will ensure insignificant impact on the local
vegetation from the proposed project and may improve the vegetation
scenario of the area.
No thermal pollution is expected as closed cycle cooling system will be
adopted. As the effluent of the proposed units will be completely
treated and its quality is expected to be similar to the level achieved
now, no impact on water bodies is envisaged.
5.6
Impacts on Socio-Economic Environment
The project will offer substantial employment potential during
construction phase and operation phase, which will have beneficial
impact.
Executive Summary
Envirotech East Pvt. Ltd.
Environmental Impact Assessment for Installation of Feed
Preparation Unit (FPU) for Catalytic Dewaxing Unit (CDWU) at
Haldia Refinery, District: Purba Medinipur, West Bengal
ES - 7
6.0 ENVIRONMENTAL MANAGEMENT PLAN
M/s IOCL will develop various management activities for the
Environmental Management Programme which will meet all statutory
requirements and help to improve environmental quality.
In order to improve the aesthetic look of the area and enhance the
land use as well as to compensate for any loss in ecology during
construction, adequate plantation programmes around the project site
have been planned and will be adopted. Development of green belt will
include plantation of trees along boundary of the factory, roads, raw
material yard and other available spaces.
A detailed monitoring for different environmental parameters will be
carried out as per direction of State Pollution Control Board. An
environmental management group will be established to implement
the management plan.
Executive Summary
Envirotech East Pvt. Ltd.

Download Report