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ANNEXURE-II
Pre-Feasibility Report
For
Environmental Clearance for Proposed Synthetic Resin
Manufacturing Plant
At
Village : Kuakandar; Mouza & P.O. Bhajanpur, P.S. Khoribari,
Dist. Darjeeling; West Bengal.
PREPARED BY
M/s SARARA CHEMICALS
&
M/s ULTRA-TECH
(Environment Consultancy & Laboratory)
Pre-Feasibility Report for M/s Sarara Chemicals Page 2
TABLE OF CONTENTS
1. INTRODUCTION AND JUSTIFICATION OF THE PROJECT ....................................... 4
1.1. Identification of Project .................................................................................................... 4
1.2. Identification of Project Proponent .................................................................................. 4
1.3. Need of Project and its Importance .................................................................................. 4
1.4. Demand Supply Gap: ....................................................................................................... 5
1.5. Import Vs. Indigenous Production ................................................................................... 5
1.6. Export Potential ................................................................................................................ 5
1.7. Employment Generation .................................................................................................. 5
2. SITE INFORMATION ............................................................................................................. 7
2.1. Location ............................................................................................................................ 7
2.1. Topography .................................................................................................................... 12
2.1. Land Use Pattern ............................................................................................................ 12
3. PROJECT DESCRIPTION .................................................................................................. 14
3.1. Type of Project ............................................................................................................... 14
3.2. Size and Magnitude of Operation................................................................................... 14
3.3. Project Description with Process Details: ...................................................................... 15
3.3.1.1. Manufacturing Process:.......................................................................................... 16
3.3.1.2. Chemical Reaction .................................................................................................. 16
3.3.1.3. Process Flow Diagram: .......................................................................................... 17
3.3.1.4. Material Balance for U-F Resin Production: ......................................................... 18
3.3.2.1. Manufacturing Process:.......................................................................................... 18
3.3.2.2. Chemical Reaction .................................................................................................. 19
3.3.2.3. Process Flow Diagram: .......................................................................................... 19
3.3.2.4. Material Balance for P-F Resin Production: ......................................................... 20
3.4. Utilities ........................................................................................................................... 20
4. RESPONSIBLE CARE FOR WASTES ............................................................................... 22
4.1. Water Regime ................................................................................................................. 22
0.2. Air Pollution ................................................................................................................... 23
0.3. Noise Pollution ............................................................................................................... 23
0.4. Waste Management ........................................................................................................ 24
5. PROJECT SCHEDULE & COST ESTIMATES ................................................................ 25
5.1. Project Schedule ............................................................................................................. 25
5.2. Project Cost Estimates .................................................................................................... 25
6. ANALYSIS OF PROPOSAL & RECOMMENDATIONS ................................................. 26
Pre-Feasibility Report for M/s Sarara Chemicals Page 3
LIST OF TABLES
Table 2.1: Geographical Location and Environmental Setting of the Project ........................... 7
Table 2.2: Plot Break-Up Details ............................................................................................... 8
Table 3.1: Raw Material Details .............................................................................................. 14
Table 3.2: Proposed Production Capacity ................................................................................ 15
Table 3.3: List of Plant Machinery .......................................................................................... 15
Table 3.4: Material Balance for U-F Resin Production ........................................................... 18
Table 3.5: Material Balance for P-F Resin Production ............................................................ 20
Table 4.1: Technical Details of cyclone .................................................................................. 23
Table 4.2: Technical Details of Induced Draft Fan .................................................................. 23
Table 4.3: Details of Hazardous Waste generation and Disposal ............................................ 24
Table 5.1: Break-up Cost of the Project................................................................................... 25
LIST OF FIGURES
Figure 2.1A: Connectivity Map for Nearest Railway Station.................................................... 9
Figure 2.1B: Connectivity Map for Nearest Airport ................................................................ 10
Figure 2.1C: Connectivity Map for Nearest Town/City .......................................................... 10
Figure 2.2: Location Map ........................................................................................................ 11
Figure 2.3: Google Image ........................................................................................................ 12
Figure 2.4: Schematic Plant Layout ......................................................................................... 13
Figure 3.1: Process Flow Diagram of U-F Resin ..................................................................... 17
Figure 3.2: Process Flow Diagram of P-F Resin ..................................................................... 19
Figure 3.3: Water Balance Diagram ........................................................................................ 21
Fig 4.1: ETP Diagram .............................................................................................................. 22
Pre-Feasibility Report for M/s Sarara Chemicals Page 4
1. INTRODUCTION AND JUSTIFICATION OF THE PROJECT
1.1. Identification of Project
M/s Sarara Chemicals is willing to install a plant for production of Synthetic Resin with a
capacity of 5400 MTPA, in the land of 1335.45m2 at R.S. Plot No 200; L.R. Plot No 481;
Mouza – Bhajanpur; Village – Kuakandar; Dist – Darjeeling, West Bengal.
Because of high market demand, the project proponent is willing to produce two types of
synthetic resin i.e. Urea-Formaldehyde Resin (U-F Resin) and Phenol-Formaldehyde Resin
(P-F Resin). The production capacity of the two types of resins will be 3780 MTPA and 1620
MTPA respectively.
The proposed project is satisfying the General Condition of the EIA Notification as the India
– Nepal International boundary is in 4 km and the West Bengal-Bihar State Boundary is in
1.4 km from the project site. So the proposed project will be considered as Category A.
Thus the unit is categorized under Category „A‟ of Schedule no. 5(f) for “Synthetic organic
chemicals industry” as per EIA notification and its latest amendment
1.2. Identification of Project Proponent
M/s Sarara Chemicals is a proprietorship concern having its office at Village Kuakandar;
Mouza & P.O. Bhajanpur; P.S. Khoribari; Dist. Darjeeling.
The proprietor of the firm is Smt. Rekha Agarwal, wife of Sri Ashok Kumar Agarwal, is
resident of Gitanjali Complex, Behind Corporation Bank, 2nd Mile, Sevoke Road, Siliguri,
Dist. Jalpaiguri – 734001, The proprietor of the firm is from highly reputed business family
of Siliguri having wide business experience.
1.3. Need of Project and its Importance
The proposed synthetic resin plant will be set up with an installed capacity to manufacture
around 5400 MT per annum. The proportion of U-F resin and P-F Resin production is
proposed to be at 70: 30 ratios. U F Resin and PF Resin are used in plywood manufacturing
for pasting of veneer sheets. There are large number of plywood manufacturing units in North
Bengal and adjoining Bihar. There is a good demand for U-F and P-F Resin in neighboring
country - Nepal.
The unit proposes to export about 70% of its production to Nepal. Where number of plywood
units are situated who are using U-F and P-F Resin.
Considering good export as well as domestic market, marketability of the product will not be
a problem at all.
Pre-Feasibility Report for M/s Sarara Chemicals Page 5
1.4. Demand Supply Gap:
Demand of synthetic resins in the country is increasing day by day. These synthetic resins are
used in adhesives, finishes, particle board, MDF, and moulded objects.etc.
Urea Formaldehyde and related amino resins are considered a class of thermosetting resins of
which urea-formaldehyde resins make up 80% produced globally. Examples of amino resins
use include in automobile tires to improve the bonding of rubber to tire cord, in paper for
improving tear strength, in moulding electrical devices, jar caps, etc.
Phenol Formaldehyde Resins (PF) or Phenolic Resins are synthetic polymers obtained by the
reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite,
PFs were the first commercial synthetic resins (plastics). They have been widely used for the
production of molded products including billiard balls, laboratory countertops, and as
coatings and adhesives. They were at one time the primary material used for the production
of circuit boards but have been largely replaced with epoxy resins and fibreglass cloth, as
with fire-resistant FR-4 circuit board materials
Competition in the Indian market swells in recent years. This had many companies opting out
of low-margin segments, as competition resulted in lower prices. A gap between demand and
supply is created. Such remarkable price hikes take place when there is removal of some of
the key competitors, which leads to demand override and as a consequence prices start
soaring in a free-pricing market.
1.5. Import Vs. Indigenous Production
The state and pattern of growth of the economy determine the resin requirement. The
requirements of resin may be fulfilled either through indigenous production and/or through
imports. It is not possible for a developing country to import huge quantities of resin because
of foreign exchange constraints where as it is better for a country to be self-sufficient in its
resin requirements. The products manufactured will substitute the imports, saving foreign
exchange to India.
1.6. Export Potential
There may be large opportunities to become a global supplier of quality resin. Also there
exists abundant market opportunities in the neighbouring regions of Asia, Africa and the
Middle East.
1.7. Employment Generation
Direct Employment
M/s. Sarara Chemicals will generate employment of around 16 full time employees
for operations and administration purpose. The local population will be given
preference for employment as per their qualifications; this will improve their living
standards and livelihood.
Pre-Feasibility Report for M/s Sarara Chemicals Page 6
Indirect Employment
It will generate employment for local people in associated services like transportation,
various maintenance contracts of the location during operation, dhabas, workshops
plying from/to the locations & other ancillary industries.
Pre-Feasibility Report for M/s Sarara Chemicals Page 7
2. SITE INFORMATION
2.1. Location
M/s. Sarara Chemicals is located at R.S Plot no 200; L.R plot no 481; Mouza Bhajanpur;
Village Kuakandar; Dist Darjeeling. The geographical location and Environmental Setting of
the project is as mentioned in Table 2.1. The industry has following favourable conditions of
the proposed unit:
Vicinity to Market
Availability of Land Area
Availability of Water supply
Availability of Local Labour
Availability of Power
Well developed Transport Infrastructure
The Location map is shown below in Fig 2.2 and connectivity maps has been shown in Fig
2.1A to Fig 2.1C. Google image of the project is shown in Fig 2.3.
Table 2.1: Geographical Location and Environmental Setting of the Project
SN Component Description
1 Plant Location R.S. Plot No 200; L.R. Plot No 481; Mouza
– Bhajanpur; Village – Kuakandar; Dist –
Darjeeling.
2 Approx Site Centre Point
Coordinates
26° 32‟ 6.5574”N
88° 09‟ 0.1938”E 3 Village/District/State Kuakandar / Darjeeling / West Bengal
4 Climatic conditions at Bagdogra IMD station (2017)
5 Maximum temperature 31oC
6 Minimum temperature 11oC
7 Annual rainfall (total) 3430 mm
8 Predominant wind directions North, North East
9 Plant site elevation above MSL 86 m
10 Present land use at the site Land use pattern is industrial
11 Nearest highway NH 327 -160 m(E)
12 Nearest Railway Station Rangapani : 38 km (Road Distance)
New Jalpaiguri : 39.8 km (Road Distance)
13 Nearest Airport
Bagdogra Airport : 27.8 km (Road Distance)
14 Nearest major water bodies
Machi River – 4.6 km, Swarnamati River –
1 km
15 Nearest town/City
Siliguri: 39km(Road Distance)
16 Nearest village
Kuakandar
17 Protected areas as per Wildlife
Protection Act, 1972 (Tiger reserve,
Not Available within 10 km
Pre-Feasibility Report for M/s Sarara Chemicals Page 8
SN Component Description
Elephant reserve, Biospheres,
National parks, Wildlife sanctuaries,
community reserves and conservation
reserves)
18 Reserved / Protected Forests Not Available within 10 km
19 Defence Installations Not Available within 10 km
The break-up of the plot area is as mentioned below:
Table 2.2: Plot Break-Up Details
S.N. Description Area (SQM) % Utilization
1 Total Plot Area 1335.45 100
2 Ground Coverage 387.36 29
4 Parking Area 133.45 10
5 Vacant Land 360.52 27
6 Green Area 454.12 34
Pre-Feasibility Report for M/s Sarara Chemicals Page 9
Figure 2.1A: Connectivity Map for Nearest Railway Station
Pre-Feasibility Report for M/s Sarara Chemicals Page 10
Figure 2.1B: Connectivity Map for Nearest Airport
Figure 2.1C: Connectivity Map for Nearest Town/City
Pre-Feasibility Report for M/s Sarara Chemicals Page 11
Figure 2.2: Location Map
Project Site
Pre-Feasibility Report for M/s Sarara Chemicals Page 12
Figure 2.3: Google Image
2.1. Topography
The topography of the project site is relatively flat. The soil is moderately alluvial. Loamy
sand is predominant. The soil structure can be described as neither granular nor angular.
Mechi river and Swarnamati river the major river flowing close to the project site. It
originates from the Himalayas and are perennial in nature, being fed by the melting snow of
the glaciers.
The proposed project is located in Seismic Zone IV as per IS: 1893 and all designs will be as
per IS Codes.
2.1. Land Use Pattern
The land area for the proposed project is located at R.S. Plot No 200; L.R. Plot No 481;
Mouza – Bhajanpur; Village – Kuakandar; Dist – Darjeeling, West Bengal. It was a barren
land and only temporary sheds have been constructed. Hence, no change in land use is
envisaged.
Pre-Feasibility Report for M/s Sarara Chemicals Page 13
Figure 2.4: Schematic Plant Layout
Pre-Feasibility Report for M/s Sarara Chemicals Page 14
3. PROJECT DESCRIPTION
3.1. Type of Project
M/s Sarara Chemicals. is willing to install a plant for production of Urea-Formaldehyde
Resin and Phenol-Formaldehyde Resin with the total capacity of 5400 MTPA, because of
high market demand of the these synthetic resins, in the land of 1335.45m2 at R.S. Plot No
200; L.R. Plot No 481; Mouza – Bhajanpur; Village – Kuakandar; Dist – Darjeeling, West
Bengal. The project cost towards the proposed project is around Rs. 110.47 lakhs
The proposed project is satisfying the General Condition of the EIA Notification as the India
– Nepal International boundary is in 4 km and the West Bengal-Bihar State Boundary is in
1.4 km from the project site. So the proposed project will be considered as Category A.
Thus the unit is categorized under Category „A‟ of Schedule no. 5(f) for “Synthetic organic
chemicals industry” as per EIA notification and its latest amendment
3.2. Size and Magnitude of Operation
The plant is proposed to design for the production of U-F Resin and P-F Resin. The raw
material details and the production capacity of each product are mentioned in table 3.1 and
3.2 respectively. The plant and machinery have been designed with required specification
considering volume of reaction, material of construction and are located at appropriate
positions. Adequate ventilation, air conditioning and Air Filtration systems have been
planned to prevent environmental hazards. Plant Machinery details are mentioned in Table
3.3.
Plant facilities have been designed as per the safety norms with appropriate emergency
escapes.
Table 3.1: Raw Material Details
SL Raw materials Form Quantity
(MT/Month)
1 Formalin Liquid 313.2
2 Industrial Urea Solid 88.2
3 Phenol Liquid 43.2
4 Caustic Soda Solid 2.32
5 Acetic Acid Liquid 0.16
6 Yellow Dextrin Powder / Maize
Starch White
Solid 0.05
Pre-Feasibility Report for M/s Sarara Chemicals Page 15
Table 3.2: Proposed Production Capacity
Sl Name of the
product
Production
Capacity
(MT/Month)
Production
Capacity
(MT/Annum)
Storage
Capacity
(MT)
Mode of
Storage
1 Urea-Formaldehyde
Resin 315 3780 88.2 PVC Tank
2 Phenol-
Formaldehyde Resin 135 1620 37.8 PVC Tank
Total 450 5400 126
Table 3.3: List of Plant Machinery
Sl.
No
Plant Machinery Details
Machinery Specification Quantity
1 Vertical Boiler Size 8‟X4‟ with all accessories and stack of
0.4m dia and 30m height; Capacity 1MT/hr
1
2 Resin Kettle Capacity 5 tonne 1
3 Resin Kettle Capacity 4 tonne 1
4 DG Set Make – Mahindra Capacity 50kVA 1
3.3. Project Description with Process Details:
The project proponent is willing to install a unit for the production of two types of synthetic
resin i.e. Urea-Formaldehyde Resin (U-F Resin) and Phenol-Formaldehyde Resin (P-F
Resin). The production capacity of the two types of resins will be 3780 MTPA and 1620
MTPA respectively.The unit will run in four batch per day basis. Two numbers of Resin
kettle with capacity of 5 MT and 4 MT respectively and a vertical boiler with size 8‟X4‟ with
all accessories and stack of 0.4m dia and 30m height and capacity of 1MT/hr are proposed to
be installed. Other than the plant machineries, for storage of formalin and other liquid raw
materials, 16 no of PVC tank with capacity 5000Ltrs each are going to be placed on the
storage area. One number of PVC water storage tank with 3000Ltrs capacity is also going to
be placed with mounting stand.
A brief description comprising of manufacturing process along with mass balance of the
Product is mentioned herewith as follows:
3.3.1. Urea Formaldehyde Resin:
Urea formaldehyde resins are poly-condensation products of the reaction of formaldehyde
with urea. The relatively easy production of UF resins, their good solubility in water and
absence of colour, make these thermosetting polymers irreplaceable in the manufacture of
many wood based products. Due to the low resistance to humidity of UF resins, the wood
products are suitable for interior use in dry condition. The specifications of the resin product
such as the molar ratio of formaldehyde to urea, solid content, viscosity etc. are adjusted as
per requirement. The manufacturing process diagram is depicted in figure 3.1.
Pre-Feasibility Report for M/s Sarara Chemicals Page 16
3.3.1.1. Manufacturing Process:
The process for the preparation of Urea-Formaldehyde Synthetic Resins comprises:
The UF resin is prepared by reacting Urea with Formaldehyde in a molar ratio of
approximately 1: 2to3 at pH 6 – 11.The aqueous Formaldehyde solution should contain
more than 50% by weight of Formaldehyde. Urea reacts with Formaldehyde under
neutral or alkaline condition to yield Monomethylol Urea, Symmetrical Dimethylol Urea
and Trimethylol Urea depending on nature of reactant.
The resinification process for UF occurs in main stages, addition/ Methylolation and
condensation.
In the Methylolation step Urea and Formaldehyde are reacted under controlled
conditions using an alkaline catalyst. Typically the Methylolation step is carried out with
adjustment of temperature at 80°C and pH 6 to 11. The Mythylolation stage usually
results in a mixture of Mythylolated species, Monomethylol Urea, Symmetrical
Dimethylol Urea and Trimethylol Urea.
This mono and Dimethylol urea may be regarded as the monomer of the urea-
formaldehyde resin.
In the second stage these methylol urea products undergo condensation to form low
molecular weight polymers. The rate of reaction depends on pH. pH is adjusted in 0.5 to
3.5 by using acid. Acid catalyses the reaction in the following ways:
Formation of Methylene Bridge in amino nitrogen facilities in acidic medium
Methylene ether linkages can also be formed in acidic medium
Two types of acid materials can be used, which are classified as direct catalysts & latent
catalysts.
Direct catalysts are inorganic and organic acids, acid salts. They are effective at all
temperatures. The latent catalysts are salts and esters which develop acidity upon
heating.
The solution is refluxed at temperature around 80°C.
The condensation reaction proceeds to a predetermined end point and the resin
intermediate is cooled at 45°C.
At this state the reaction is arrested by raising the pH of the resin at about 6.5 to 9 and
cooled to the ambient temperature by circulating water in jacket and discharged from the
vessel.
3.3.1.2. Chemical Reaction
Pre-Feasibility Report for M/s Sarara Chemicals Page 17
3.3.1.3. Process Flow Diagram:
Figure 3.1: Process Flow Diagram of U-F Resin
Reactor Vessel
At Atmospheric
Pressure
Water Circulation
in Jacket
Mixing of Raw Materials
Digestion
Exothermic Reaction
Start
Product Testing
Urea Formaldehyde
Resin
Packing
Storage of UF Resin
Urea
Formalin
Catalyst
Condenser
Heating
80°C
Cooling
Temp. Rise up to 80°C Digestion time 2 – 3 hr
Dispatch
Pre-Feasibility Report for M/s Sarara Chemicals Page 18
3.3.1.4. Material Balance for U-F Resin Production:
Table 3.4: Material Balance for U-F Resin Production
Input of Raw materials Quantity
(Kg)
Output Quantity
(Kg)
Industrial Urea 1400 UF Resin 5000
Formalin 3600 Process Loss 7
Caustic Soda 2.5
Acetic Acid 2.5
Yellow dextrin Powder or Maize
Starch White
2
Total 5007 Total 5007
3.3.2. Phenol Formaldehyde Resin:
Phenol-Formaldehyde Resin, as a group is formed by a step-growth polymerization reaction
and an exothermic one. It is controlled by a batch reactor as the viscosity of the material
changes rapidly. Since formaldehyde exists predominantly in the solution as a dynamic
equilibrium of Methylene Glycol Oligomers, the concentration of the reactive form of
formaldehyde depends on temperature and pH. The manufacturing process diagram is
depicted in figure 3.2.
3.3.2.1. Manufacturing Process:
The process for the preparation of Phenol-Formaldehyde Synthetic Resins comprises:
A typical phenolic-resin is produced by a batch process in a jacketed autoclave, which
is also termed as a resin kettle.
Molten phenol, formaldehyde in 1:2 ratio and the costic soda is added to the resin
kettle and mixed properly. The mixture is then heated with steam (Temp – 80 –
100°C).
The temperature is controlled by removing the excess heat by water cooling and
refluxing.
At the initial stage of reaction, the heavy viscous resin settles as the bottom layer with
an aqueous layer on top.
A combination of heat and vacuum aids the reaction mixture dehydration process.
When the temperature reaches 130 – 150°C, the resin fuses and is removed from the
kettle/ autoclave.
Pre-Feasibility Report for M/s Sarara Chemicals Page 19
3.3.2.2. Chemical Reaction
3.3.2.3. Process Flow Diagram:
Figure 3.2: Process Flow Diagram of P-F Resin
Reactor Vessel
At Atmospheric
Pressure
Water Circulation in
Jacket
Mixing of Raw Materials
Digestion
Exothermic Reaction
Start
Phenol
Formalin
Catalyst
Steam Heating
80° - 100°C
Cooling
Refluxing
Dispatch
Initial Stage
Heavy Viscous Resin
Formation at Bottom
Layer
Dehydration of Resin
Mixture
Product
Phenol Formaldehyde
Resin
Temperature
130° - 150°C
Heat Vaccum
Pre-Feasibility Report for M/s Sarara Chemicals Page 20
3.3.2.4. Material Balance for P-F Resin Production:
Table 3.5: Material Balance for P-F Resin Production
Input of Raw materials Quantity
(Kg)
Output Quantity
(Kg)
Phenol 1600 PF Resin 5000
Formalin 3200 Process Loss 30
Caustic Soda 80
Water 150
Total 5030 Total 5030
3.4. Utilities
The details of the utilities for the proposed project are as mentioned in the below sections.
3.4.1. Water Demand & Its Source
The total water requirement will be around 4.6KL per day, out of which 1.1KL will be used
for domestic purpose from where around 0.9KL sewage water will be generated which will
be flowed to septic tank followed by soak pit. For industrial use, around 2.1KL water will be
required out of which 0.2KL will be used in production process, 0.7KL will be used in boiler,
0.5KL will be required for cooling water makeup and around 0.7KL will be used for kettle
and floor washing. Around 0.7KL waste water is expected to be generated as effluent which
will be treated in ETP. Around 0.6KL treated effluent per day is expected to be generated
which will be used for gardening purpose. So there will be no discharge of waste water. A
water balance diagram is depicted in Fig 3.3.
Pre-Feasibility Report for M/s Sarara Chemicals Page 21
Intake 4.6 KLD
Gardening 2 KLD
(Fresh Water – 1.4 KLD &
Treated Water – 0.6 KLD)
Domestic 1.1 KLD Industrial 2.1 KLD
Sewage 0.9 KLD
Septic Tank
Followed by Soak
Pit
Kettle & Floor
Wash 0.7 KLD
Cooling
Makeup
0.5 KLD
Boiler
0.7 KLD
Process
0.2 KLD
Effluent 0.7 KLD ETP Treated
Water
0.6 KLD
0.6
KL
D T
reate
d
Wate
r
Figure 3.3: Water Balance Diagram
3.4.2. Power Demand & its Source
Total Power requirement for the proposed project will be about 48kVA in double shift basis
of 8hours each, for 300 days per annum. The power will be supplied from WBSEDCL.
Additionally a D.G. set of 50 kVA will be used in case of emergency or power failure. Diesel
will be used as a fuel for D.G. set.
Pre-Feasibility Report for M/s Sarara Chemicals Page 22
4. RESPONSIBLE CARE FOR WASTES
4.1. Water Regime
The waste water will be around 700L/D generated from kettle washing and floor washing
will be sent to ETP for treatment. The flow diagram of the treatment process is depicted
below in Fig.4.1.
Fig 4.1: ETP Diagram
4.1.1. Recommended Treatment Process
To treat the wastewater the effluent will be collected in an equalizer tank through screen. It
will be then taken to mixing cum primary sedimentation tank, where Lime solution
(20gm/L) and Alum (4gm/L) or Polyelectrolyte will be dozed for flocculation and
sedimentation. The sludge from the primary sedimentation tank will be taken to sludge bed.
The treated water from primary sedimentation tank will be pH corrected, where acid will be
dosed to get a neutral pH. The wastewater will then to be aerated for 10 hrs with nutrients
and to be settled for another 10 hrs. The effluent is then to be passed through 3 nos.
activated carbon columns. The water will then to be chlorinated. The treated water from tank
will be discharged or reused.
The dry sludge will be stored after collection from the sludge bed.
EQUALISER MIXING /
PRIMARY
SEDIMENTATIO
N TANK
pH
Correction
Tank
cum
Lime Soln. Alum/
Polyelectrolite HCl
SLUDGE
WASTE
WATER
AERATION
TANK
Cum
Compressed
Air
SECONDARY
SEDIMENTATION
TANK
CHLORINA
TION TANK ACTIVATED
CARBON COLUMN
Compressed
air
Discharge or reuse
Nutrients
Activated Sludge to
be Re-circulated
Pre-Feasibility Report for M/s Sarara Chemicals Page 23
4.2. Air Pollution
The main source of air pollution will be the flue gas from Vertical Boiler (1 MT/hr) and D.G
Set (50 kVA) contains PM, SO2 and NOx as air pollutants.
In the proposed plant source of air pollution is particulate matter to be generated from the
burning of 20kgs of coal per hour in boiler which is needed to be controlled before discharge
into the atmosphere. To minimize the emission level it is suggested that a cyclone separator
needs to be installed. The outlet of the cyclone separator will be connected to an induced
draft fan and finally to the proposed stack of 30m height. The technical specifications of
Pollution Control Devices are as follows:
Table 4.1: Technical Details of cyclone
Capacity 5,000 m³/hr
Type of separator cyclone
Dust disposal arrangement Mechanical Type Rotary Air Lock Valve
Gas Temperature 120° C
Material MS
Table 4.2: Technical Details of Induced Draft Fan
Capacity 5,000 m³/hr
Static pressure 200mmwg
Type of fan Centrifugal
Material of casing / Impeller MS
The unit will also have one D. G. Set (50 kVA), which will be kept as a stand-by and used in
case of main power failure. The Diesel will be used as fuel for the DG Set and adequate stack
height of 2 m will be provided.
Other source of emission to atmosphere will be from leakage of piping and equipments such
as valves, flanges, pump seals, connections, and compressor seals open end lines and pressure
relief valves. The emissions will not be visually observed but can be measured in relatively
low concentration at each area of source.
4.3. Noise Pollution
The only source of noise generation may be from the D.G. Set, which will be kept as standby
and no other source of noise and vibration from the proposed manufacturing activity except
Plant machineries. The adequate precautions will be taken for abatement of noise pollutions
All the measures would be taken to limit the noise levels at the plant boundary within 75
dB(A) as per the stipulated limits.
Pre-Feasibility Report for M/s Sarara Chemicals Page 24
4.4. Waste Management
The main source of hazardous waste generation from proposed activity is dried sludge from
ETP and Evaporation residue.
The other source of hazardous waste generation from proposed activity are discarded
containers/ Barrel / bags from storage and handling of raw materials and spent/used oil
generation from plant machinery..
The unit will obtain membership of active Common Environmental Infrastructure TSDF at
Haldia for proper disposal of hazardous waste. The unit has provided dedicated storage area
for the hazardous waste storage within premises having impervious floor and roof cover
system. The details of hazardous waste generation and handling / Management are given in
Table 4.1.
Table 4.3: Details of Hazardous Waste generation and Disposal
Sr. No. Types of Waste Quantity Mode of Disposal
1. ETP Sludge 5
Kg/Month
Collection, Storage, Transportation,
Disposal at TSDF site.
2 Used oil/ spent oil 15
Lit/Year
Collection, Storage, Transportation, Sell
to Registered Pre-processor
3 Bags 50
Nos./Day Sold to Registered Recycler
Pre-Feasibility Report for M/s Sarara Chemicals Page 25
5. PROJECT SCHEDULE & COST ESTIMATES
5.1. Project Schedule
The commercial operation date (COD) is envisaged in six (6) months reckoned from the
effective zero date.
5.2. Project Cost Estimates
Total cost of the project will be around 110.47 lacs. Budgetary break up is as follows:
Table 5.1: Break-up Cost of the Project
Sl.
No Particular
Cost
(Rs Lakhs)
1 Land & Land Development 13.50
2 Building & Civil Construction 44.0
3 Plant & Machinery 41.22
4 Electrical Installations 3.75
5 Miscellaneous Fixed Assets 2.40
6 Preliminary & Preoperative Expenses 2.45
7 Provision for Contingencies 3.15
Total 110.47
Pre-Feasibility Report for M/s Sarara Chemicals Page 26
6. ANALYSIS OF PROPOSAL & RECOMMENDATIONS
The technical feasibility and financial viability of the project has been reviewed with
reference to the proposed project with reference to overall company as a whole. Our review
has been done on the basis of the present scenario and documents made available to us by the
company. We have made the assessment afresh and made the changes in assumptions
wherever felt required.
Based on our analysis it may be inferred that
The project is technically feasible and financially viable.
The overall financial liquidity and profitability parameters of the project appeared to
be reasonable and satisfactory.
We conclude the capital expenditure of the company as a viable option subject to
the weakness and threats associated with a business venture.
The operation of plant has significant positive impact on the socio-economic
environment of the area. It helps to sustain the development of this area including
further development of physical infrastructure facilities.
In the interest of development and improve the social conditions of the local habitants this
project should be allowed after considering all the environment aspects.