Pre -Feasibility Report - Welcome to...

MARCH 2015

Pre-Feasibility Report

OF

Proposed Leather Processing Unit (Raw hide to finished Leather)

At

Rania, Uttar Pradesh

BY

M/s Leayan Global Pvt. Ltd.

(Registered Address: 119, 120, 121, BLOCK P&T, FAZALGANJ KALPI ROAD, KANPUR-208012 (U.P.))

Correspondence Address : C-1, 2 & 3, 3rd Floor P.P. Tower “A”, Netaji Subhash Place, Wazirpur,

Pitampura, Delhi

SCHEDULE AS PER EIA NOTIFICATION: 4(f) Cat. A

PLOT AREA: 34700 SQM

PROPOSED CAPCITY: 15.5 TPD (Raw hides & skins to finished leather)

Prepared By:

M/s PERFACT ENVIRO SOLUTIONS PVT. LTD.

(NABET Registered List of Accredited Consultant Organizations/ 5th March. 2015/Rev. 28/Sr.

No. 114)

5th Floor (Front wing), NN Mall, Mangalam Palace

Sector 3, Rohini, New Delhi

Email: [email protected]

Proposed Leather Processing Unit (Raw hides & skins to finished Leather) at Rania, U.P. By M/s Leayan Global Pvt. Ltd.

Consultant: Perfact Envirosolutions Pvt. Ltd., New Delhi

1

1.1 INTRODUCTION OF THE PROJECT ........................................................................................................................... 3

1.1.1 Profile of promoter ................................................................................................................................ 3

1.1.2 Need of the Project ............................................................................................................................... 4

1.1.3 Social Impact ......................................................................................................................................... 4

1.2 PROJECT DESCRIPTION ................................................................................................................................. 5

1.2.1 Project Details ....................................................................................................................................... 5

1.2.2 Land Area Details .................................................................................................................................. 5

1.2.3 The Google Image of Project Site .......................................................................................................... 6

1.2.4 Topographical Map ............................................................................................................................... 6

1.2.5 Layout Plan ........................................................................................................................................... 6

1.2.6 Site Photographs ................................................................................................................................... 6

1.2.7 Project Description with Process Details ............................................................................................... 6

1.2.8 Raw Materials with daily requirement .................................................................................................. 7

1.2.9 Manufacturing process ......................................................................................................................... 8

1.2.10 Cleaner tanning technologies............................................................................................................ 11

1.2.11 Machinery Required .......................................................................................................................... 13

1.2.12 Detail of Products .............................................................................................................................. 14

1.3 ENVIRONMENT MANAGEMENT .......................................................................................................................... 15

1.3.1 Water Management ........................................................................................................................... 15

1.3.2 Waste Generation and Management ................................................................................................. 18

1.3.3 Air Emissions and Control.................................................................................................................... 19

1.3.4 Power Requirement Source & Back-up ............................................................................................... 20

1.3.5 Noise Pollution Management ............................................................................................................. 20

1.3.6 Safety .................................................................................................................................................. 21

1.4 LAND DETAILS ............................................................................................................................................. 22

1.4.1 Land Form & Land Use ........................................................................................................................ 22

1.4.2 Existing Infrastructure around the Site ............................................................................................... 22

1.4.3 Proposed Infrastructure ...................................................................................................................... 22

1.5 PROJECT SCHEDULE AND COST ESTIMATES ................................................................................................ 25

1.5.1 Likely Date of Start of Construction and Completion .......................................................................... 25

1.5.2 Estimated Project Cost ........................................................................................................................ 25

1.5.3 Cost on Environment Management Plan ............................................................................................ 26

1.6 PROJECT BENEFITS ...................................................................................................................................... 26

ANNEXURE I: DISCLOSURE OF ENVIRONMENTAL CONSULTANT ..................................................................... 27

ANNEXURE II: TOPOGRAPHICAL MAP ............................................................................................................ 29

ANNEXURE III: LAYOUT PLAN ......................................................................................................................... 31

ANNEXURE IV: WATER MANGEMENT ............................................................................................................ 33



2

Water Management .................................................................................................................................... 34

DESCRIPTION OF TREATMENT:....................................................................................................................... 38

A. PRIMARY TREATMENT ................................................................................................................................... 38

B. BIOLOGICAL TREATMENT ............................................................................................................................... 38

C. TERTIARY TREATMENT ................................................................................................................................... 39

D. REVERSE OSMOSIS ........................................................................................................................................ 39

E. EVAPORATION OF REJECT ............................................................................................................................... 40



3

1.11.11.11.1 Introduction of the projectIntroduction of the projectIntroduction of the projectIntroduction of the project

The proposed unit shall be manufacturing of finished chrome tanned leather from raw hides

&skins at Rania (U.P.) by M/s Leayan Global Pvt Ltd. Installed capacity of the plant at

inception will be 15.5 TPD (Raw hides & skins to Finished Leather). The main raw material is

buff calf skins or hides and will be mostly of indigenous origin. The products will be upper

leather and lining leather meant for footwear.

The Group has embarked on a major project involving setting up modern Leather processing

unit of high quality leather by installation of modern leather working machinery. Then

tannery will enable the company to manufacture leather based on high quality Hides. The

finished Leather shall be processed and sold to Shoe and Shoe component manufactures in

India & Abroad besides captive consuming of production of leather goods.

Rania is the most ideal place of setting industrial unit because of proximity of raw materials

market of our products, power availability and sweet water, and plenty of cheap labour

both skilled as well as unskilled is available. Even the transport system in this area is very

good and easily available.

Because of good transport system available in this area, we can easily cater markets of U.P.,

Andhra Pradesh and M.P. etc. We can also start selling our products in availability of good

means of transport.

As per EIA Notification, 2006 (as project is located in outside Industrial Area), the project

falls in ‘A’ category of schedule 4 (f).

1.1.1 Profile of promoter

Leayan Global Private Limited, a flagship company of GHARI Group, has been manufacturing

detergent and has been playing a vital role in developing a comprehensive range of leather

& footwear products to encompass the need of the Leather & footwear Industry. We also

manufacture high quality finished chrome tanned leather which is a vital input to production

of footwear products.

Historical Background:

Late Dayal Das with his sons Shri Murli Dhar Ji and Shri Bimal Kumar Ji initiated the group as

a small family business. It is said that knowledge and expertise comes from experience. It



4

was their efforts and dedication that laid the foundation on which the empire of “Ghari”

group has been builds up within a span of three decades.

Group comprises of companies mentioned under:-

1) RSPL Limited -Company does the manufacturing and marketing of detergents, toilet

soaps, wind energy and other FMCG products.

2) Leayan Global Private Limited - This Company is engaged in the manufacturing &

marketing of Leather & Leather Footwear.

3) Nimmi Build Tech Private Limited (formerly known as Poonam Developers &

Infrastructure India Private Limited) - This company is involved in the business of

construction and real estate.

4) Namaste India Foods Private Limited – This is the latest venture of the group into the

dairy business. The Company has set up number of milk collection centers at Shivrajpur,

Kanpur for collection of milk from villagers.

All the Companies are under the supervision and control of the single management thereby

making its recognition as the “GHARI GROUP”.

1.1.2 Need of the Project

Leather requirement is increasing gradually and different variety of the finished leather is in

demand.

1.1.3 Social Impact

Employment opportunities will be generated for the local population during

construction/installation phase. Approx. 50 labours shall be given employment. With

increased money supply those who will be able to provide goods & services to the work

force will benefit economically. During operational phase there will be an employment of

approximate 150 skilled & unskilled personnel. The prospect for employment generation is

substantial and it will have important social benefits. Government will get additional

revenue from direct & indirect taxes like, sales tax, vat, etc. Tannery Industry is a large and

growing domestic market.



5

1.21.21.21.2 PROJECT DESCRIPTIONPROJECT DESCRIPTIONPROJECT DESCRIPTIONPROJECT DESCRIPTION

1.2.1 Project Details

Sl. No Description Details

1. Proposed Project Proposed Leather Processing Unit (Raw hides &

skins to finished Leather)

2. Project Proponent M/s Leayan Global Pvt Ltd

3. Sr. No of Schedule& Category

(as per Notification 2006)

4(f), Leather / skin / hide processing industry,

Category ‘A’

4. Project Location Rania, U.P.

5. Capacity of unit 15.5 TPD (raw hides & skins to finished leather)

6. Product 6 TPD of finished leather

7. Total Plot Area 34,700 sq. meter

8. Manpower 150 persons

9. Water Requirement (KLD) 655 KLD

10. Source of Water Ground water

11. Waste Water Discharge 445 KLD

12. fresh water Requirement 258 KLD

13. ETP Capacity 500 KLD

14. Power Requirement (KW) 1500 KVA

15. Source of Power U.P. Electricity Board

16. Power Backup 1 x 1000 KVA, 1 x 600 KVA, 1 x 250 KVA & 1 x 100

KVA

17. Capacity of boiler 2 boilers of capacity 0.5 TPH & 1 TPH resp.

18. No. of Rain water harvesting pits 5 nos.

19. Cost 4800 lacs

1.2.2 Land Area Details

Land Use Area in sq. m. %

Total Plot area 34700 100

Ground Coverage 11650 33.6

Green Spaces 11451 33.0



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Road & Parking 11599 33.4

1.2.31.2.31.2.31.2.3 The Google Image of Project SiteThe Google Image of Project SiteThe Google Image of Project SiteThe Google Image of Project Site

Latitude and longitude-26°24'25"N to 80° 05'18"E

1.2.41.2.41.2.41.2.4 Topographical MapTopographical MapTopographical MapTopographical Map

Attached as Annexure II

1.2.51.2.51.2.51.2.5 Layout PlanLayout PlanLayout PlanLayout Plan

The layout map is attached as Annexure III (Kindly provide the plan)

1.2.61.2.61.2.61.2.6 Site PhotographsSite PhotographsSite PhotographsSite Photographs

1.2.71.2.71.2.71.2.7 Project Description with Process DetailsProject Description with Process DetailsProject Description with Process DetailsProject Description with Process Details

The proposed unit shall be manufacturing of finished chrome tanned leather from raw

hides/skins at Rania (U.P.). Installed capacity of the plant at inception will be 15.5 TPD (Raw

hides).



7

Particular weight of Hides & Skins in

Kg per day

Weight of Hides&Skins in

Tons per day

Proposed capacity 15500 kg/day (Raw hides &

skins)

15.5 TPD (Raw hides & skins)

1.2.81.2.81.2.81.2.8 Raw Materials with daily requirementRaw Materials with daily requirementRaw Materials with daily requirementRaw Materials with daily requirement

The raw materials used in the manufacturing process with their daily consumption is given

below:

S. No. Raw material Name Quantity (MT/day)

1 Hide 15.50

2 Lime 0.85

3 Sodium sulphide 0.43

4 China clay 0.23

5 Dispersing agent 0.03

6 Hair removal agent 0.03

7 Deliming agent 0.12

8 Ammonium sulphate 0.54

9 Bate 0.06

10 Sodium bi sulphite 0.09

11 Enzyme bate 0.05

12 Degreasing agent 0.11

13 Salt 0.93

14 Sodium formate 0.47

15 Formic acid 0.39

16 Sulphuric acid 0.17

17 BCS 0.93

18 Fungicide 0.02

19 Chrome exhaution agent 0.16

20 Hypo 0.12

21 Tergolix 0.02

22 Acitic acid 0.04

23 Wetting agent 0.02

24 Basic chromium sulphate 0.31

25 Chrome syntan 0.31

26 Sodium bi carbonate 0.50

27 Synthetic tanning agent 0.62

28 Acrylic system 0.31

29 Filling syntan 0.31

30 Dyes 0.62

31 Synthetic fatliquor 0.62

32 Vegetable oil 0.31

33 Mineral oil 0.31



8

1.2.91.2.91.2.91.2.9 Manufacturing processManufacturing processManufacturing processManufacturing process

Receipt of Raw material:- The raw material is received in the tannery in wet salted

condition. A visual check is made on the quality of material for every batch of hides / skins.

The hides will be segregated based on their sizes.

Desalting:- In desalting, the salt sticking on the surface of the hides is removed before it is

sent to the soaking operation. This done using brush type desalting machine. The dusted salt

collected from the machine operation is reused back in curing or in pickling but only after

purification.

Soaking:- The desalted hides are put in soaking drums. Soaking is done to rehydrate hides.

Salt used for curing the raw material is washed away along with soak liquor. Water is added at

150% based on the weight of the stock. Wetting agent, bactericide and enzyme are the

common chemicals added. Based on the dryness level of the skins / hides, the wetting agent

quantity varies from 0.1 % to 0.25% on the raw material weight. The soaking operation lasts

for about 12 hours based on the dryness level of the skins / hides.

Liming and un-hairing- Liming is done to open up the fibre bundles of the hide / skin

structure and the compact hides & skins matter is loosened to facilitate removal of flesh.

This allows the chemicals used in further processes penetrate into the hide /skin. Unhairing

is also done in the same float (i.e., same unit process). The chemicals normally used are

lime, sodium sulphide, unhairing enzymes and rarely soda ash and caustic soda. During the

liming process, the soluble non-fibrous proteins are removed. Per weight of the hides &

skins, 5 to 10% of lime and 3 to 5% of sodium sulphide are added.The hides are piled flesh-

to-flesh for 6-10 hours. There after the required length of time, the hides will be loaded to

drums. The excess lime paste is also added to the drums. The drum will have rpm of about 2

and intermittently operated and the liming continued for 24-27 hours in winter and 20-22

hours in summer.

Fleshing- Fleshing is done in machines to remove the fleshes sticking on the flesh side. The

hides are washed in drums before unloading after liming operation. The fleshes are

removed by passing the hides between a helical bladed cylinder and a hard rubber feed

roller. Fleshing operation requires water for easy removal of fleshes. This fleshing water has

dissolved lime and sulphide, which will be useful for liming hides.



9

Deliming / Bating- The hides are washed before deliming. The pelt wash liquor will be

recycled to soaking liquor. Weak acidic salts like ammonium chloride and ammonium

sulphate are used as deliming agents. Lime is neutralized and removed from skin. The bating

agents consist of enzymes, which clean up the pelt and remove the loosely fixed proteinous

matter.

Deliming is usually done in drums using ammonium chloride or ammonium sulphate to

neutralize and remove the lime present in the pelt. Normally 1 to 1.5% ammonium salt is

used for deliming with a float of 100 to 150%. Deliming is carried out for a period of 45 to 60

minutes. The end point is ascertained using phenolphthalein indicator. Absence of pink

colour with the indicator indicates the completion of deliming.

Bating- Bating is the treatment of delimed pelts with enzymatic preparations for removal of

scud, short hair and degraded proteinous matter and to improve the grain characteristics.

Usually 0.5 to 1.5% of bate is used for this operation. Bating is carried out after deliming in

the same bath. On completion of deliming bate is added is added and the drumming is

continued for a period of 45 to 60 minutes. The pelt is dry-drummed with 0.25 to 0.5% of

wetting agent for a period of 20 to 30 minutes and then washed thoroughly.

Degreasing- Degreasing is carried out to remove the natural fat which would hamper the

subsequent operations if left as such in the hides. This is carried out using degreasing agents

in a short float of 25 to 50% for a period of about one hour. Washing is very important after

completion of degreasing to remove the degreasing agents and the emulsified fat.

Pickling- Pickling is the process of conditioning deliming and bated pelts for chrome tanning.

The pelts are generally drummed with 10% brine solution for a period of 20 to 30 minutes.

The total float requirement will be 70% in the following break up: 30% as supernatant from

the chrome recovery plant, 30% as fresh water and 10% for dissolving sulphuric acid. The

salt requirement will be 2 to 3% to reach 10% brine solution. Then sulphuric acid is added in

instalments to attain an equilibrium pH at cross section 2.8 to 3.0. Formic acid of about 0.3%

is added prior to the addition of sulphuric acid to protect the grain characteristics and

facilitate tanning carried out subsequently.

Chrome tanning- Conventionally chrome tanning involves treatment of pickled pelt with

basic chromium sulphate equivalent to 6 - 8% using 100 to 150% of water as the medium.



10

The actual use of basic chromium sulphate will be 4.5% to 5.25% and the balance will be

met from the recovered chrome liquor. After ascertaining the penetration of chromium by

examining the cross section, the pH of the bath is raised to 3.8 to 4.0 using sodium formate

and sodium bicarbonate.

The flow diagram is the process is given below:-

SOAKING

LIMING/

UNHAIRING

FLESHING

WASHING

PICKLING

Water

Bactericide

Enzyme

Water

Lime

Sodium sulphide

Enzyme

Water

Water

(Ammonium salts,

Bating enzymes)

Water, salt

Sulphuric acid

RAW HIDES / SKINS

,

INPUTS:

CHEMICALS /

WATER

PROCESS

TRIMMING, SORTING,

DESALTING

(Raw material storage yard)

DEGREASING / WASHING

Water, Solvent,

Degreasing agents

Surfactants

CHROME TANNING

Water, Basic chromium

sulphate, Sodium formate

and Sodium bicarbonate

WETBLUE

DELIMING/ BATING

WASHING

Water

Water



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1.2.10 Cleaner tanning technologies

Cleaner tanning technologies will be adopted in the proposed industry to reduce the

quantum of pollution. Cleaner tanning technology generally incorporate any methodology

of leather production when compared to conventional process that results in any one or

more of the following:

� Lesser use of input resources, namely, chemical, manpower, energy, time

� Lesser wastage of input resources

� Improved quality of the finished leather

� Reduction in production cost

� Increased market value of the product

� Lesser damage to the environment

Splitting (Splitting machine)

Shaving (Shaving machine)

Washing (Drums)

Water, Acetic

acid, Wetting

agent

DRYING / STAKING/TRIMMING

BUFFING / DEDUSTING

(machine)

FINISHING (Autospray)

Water, Solvents,

Pigments, Binders,

Wax and Lacquer

emulsion

FINISHED LEATHER

Rechroming (Drums)

Neutralisation and Washing

(Drums)

Retanning / Dyeing / Fatliquoring

(Drums)

Water, BCS/Chrome

syntan, Sodium

formate, Sodium

bicarbonate

Water, Neutralising

syntan/Sodium

formate, Sodium

bicarbonate

Water, Syntans,

Dyes and

Fatliquors

WETBLUE



12

The following cleaner tanning technologies are proposed in this tannery. These technologies

are selected based on the raw materials, finished leather produced in the tannery, type and

methodology already practiced in the existing tannery.

The following benefits are envisaged by implementing the cleaner technologies:

Table: Matrix of cleaner technologies proposed in Leayan Global tannery

S. No. Parameter Cleaner technology Reduction over

conventional

processing

1. Volume of wastewater per

tonne of raw material

2 4 5 7 8 22%

2. Total dissolved solids 1 6 7 8 35%

3. Chemical oxygen demand 3 20%

4. Biochemical oxygen

demand

3 20%

5. Suspended solids 4 15%

6. Chromium 6 >80%

1. Desalting

2. Use of drums for soaking and liming

3. Hair save unhairing

4. Reuse of fleshing liquor in liming

5. Reuse of pelt wash liquor in soaking

6. Chrome recovery and reuse

7. Reuse of supernatant liquor from chrome recovery plant in pickling

8. Measurement of process water



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1.2.11 Machinery Required

List of Plant & Machinery for proposed industry is given below:

LIME YARD SECTION

1) NO. OF PADDLES :- 30

2) FLESHING MACHINE :-3 NOS.

DRUM YARD

1) NO. OF DRUMS :- 25 ( 10 X 10 SQ. FT.)

WET-BLUE STORE

1) MEASURING MACHINE :- 03 NOS.

2) SAMMYING MACHINE :- 03 NOS.

3) SPLITING MACHINE :- 03 NOS. ( STORE FOR SPLIT )

4) SHAVER MACHINE :- 04 NOS. { STORE FOR SHAVER (DUST) }

DYE HOUSE SECTION

1) NO. OF DRUMS :- 20 NOS.

2) NO. OF DRUMS :- 08 NOS.

3) SAMMYING MACHINE :- 03 NOS.

4) SETTING MACHINE :- 03 NOS.

5) VACCUM DRYER :- 03 NOS.

DRY MECHANICAL AREA

1) NO. OF STAKING MACHINE :- 03 NOS.

2) TOGGLING MACINE :- 01 NOS.

3) HYDRAULIC PRESS :- 02 NOS.

4) BUFFING MACHINE :- 03 NOS.

5) SMALL BUFFING MACHINE :- 03 NOS.


7) SPRAY MACHINE FOR CONDITIONING.

FINISHING YARD SECTION

1) AUTO SPRAY :- 04 NOS.

2) ROLLER COATER :- 02 NOS.

3) HYDRAULIC PRESS :- 04 NOS.

4) HAND SPRAY :- 03 NOS.

5) SAMPLING HAND SPRAY :- 02 NOS.



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6) CONTILEX :- 02 NOS.

7) MILLING DRUM :- 03 NOS.

8) SAMPLE MILLING DRUM :- 02 NOS.

PACKAGING STORE


MAINTENANCE STORE

1) GENERATOR :- 04 GENERATORS

2) BOILER :- 02 BOILERS

3) COMPRESSOR :- 02 COMPRESSORS

EFFLUENT TREATMENT PLANT ( E.T.P. ).

1.2.12 Detail of Products

The proposed tannery will produce finished leather for footwear manufacturing, i.e., mostly

of upper and lining leather. The raw materials will be mostly of buffalo and cow origin of

indigenous. However the facility can also process bovine hides of other country origin. With

few modification of machine the tannery can also produce skins. However at present only

buff hides are envisaged for production.

The main production in this tannery will be of as follows:

1. Upper leather 75%

2. Lining leather 25%

Product weight of Hides & Skins in

Kg per day

Weight of Hides & Skins in

Tons per day

Finished leather 6000 kg/day 6 TPD

The products manufactured from this tannery, i.e., finished leather will be sent to the

footwear manufacturing factory of the company.



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1.3 Environment Management

1.3.1 Water Management

1.3.1.1 Water consumption & source & Waste water generation

� Total water requirement will be 655 KLD (fresh water- 258 KLD & treated water-397).

The fresh water usage will be approx. 16.6 KL/tonne of hide & skin. The water will be

required mainly for Domestic process & wash, Boiler, Gardening and Cooling. The

water requirement will be met from Ground water supply after getting permission

from CGWA.

� The effluent treatment will be based Zero Liquid Discharge (ZLD). Total waste water

generated is 445 KLD out of which total Process waste water generated from the

proposed Leather Processing unit will be approx. 434 KLD (28 KL/tonne of hide).

� Leather Processing unit will be directed to discharge the process waste water

separately at the utility area into three categories namely Soaking waste water

having high TDS, Chrome Tanning waste water & other general waste water.

� From the Utility area the soaking waste water of 30 KLD shall be forced solar

evaporated. The salt recovered from it shall be reused.

� The waste water of 25 KLD shall be received from chrome tanning. Chrome shall be

recovered from chrome containing waste water through Chrome recovery unit & the

treated water of 24 KLD from CRU will go to ETP for further treatment. The chrome

recovered shall be reused. The detail are given in figures given ahead.

� The general process waste water of 379 KLD shall be treated in ETP.

� All other waste Water from Domestic, Boiler (11 KLD) shall also be treated in ETP.

� Total 414 KLD effluent will be treated in ETP of 500 KLD followed by R.O. of 420 KLD.

The treated effluent of 331 KLD (80%) would be reused for Gardening, Process &

wash & reject of 83 KLD (20%) generated from R.O. shall be sent to multi-effect

evaporator for further treatment. The concentrate obtained from MEE will go into

crystallizer. Salt received from the crystallizer shall be disposed of at Secured land fill

at TSDF (UPWM) at Rania, U.P. Approx. 66 KLD condensed clean water shall be



16

obtained from MEE & shall be reused for Boiler, cooling & process. All the treated

water shall be reused. Thus, It will be a Zero Liquid Discharge unit.

Detail of the water management, water balance & waste water treatment is given at

Annexure No.-IV.

1.3.1.2 Rain water harvesting scheme

The main source of ground water recharging in the study area is rainwater, which infiltrates

into the ground through various lithological units present in the study area. 5 number of

rainwater harvesting pit shall be installed to recharge the ground water. The runoff from the

rooftop and storm water shall go to the recharge pits.

♦ Scheme for Ground Water Recharging

The rainwater is diverted from the rooftop using rain water pipes to the surface /

underground drainage network. The entire campus is sub divided for recharging

structures.The rainwater is diverted into the desilting tank to remove inorganic impurities

and the outflow of the desilting tank is taken into the recharge well.

♦ Desilting Tank

The desilting tanks are used to remove silt and other floating impurities from rainwater.

Desilting tank is like an ordinary container having provision for the inflow, outflow and

overflow. Apart from removing silt it holds the excess amount of water till it is soaked up by

the recharge structure. The bottom of tank will have unpaved surface (layers of coarse sand)

to allow standing water to percolate into the soil. The rainwater collected in these desilting

chambers shall be utilized for horticulture.

♦ Recharge well

The Recharge Well consist the pit size of with dia.- 3.3 m and effective depth of 3.5 m with

of 160 mm PVC perforated pipe will be lowered in the middle of the boreholes and the pit

will be filled with gravel and pebbles consisting of boulders, gravel and coarse sand. The

mouth of the PVC pipe shall be protected to avoid silt getting into it. The depth of the bore

will depend on the soil condition/water strata. The schematic diagram is enclosed. It should

be therefore concluded that there is no significant impact on surface water quality &

hydrology of the area. The proposed rainwater-harvesting scheme will stabilize the

groundwater table in the area.



17

RAIN WATER HARVESTING PLAN

Figure; rain water harvesting diagram for the proposed project

DESIGN CRITERIA:

SOIL QUALITY : Silt clay

INFILTRATION RATE : 12.7 mm/hr

PEAK HOURLY RAINFALL : 60 mm/hr

GROUND WATER LEVEL : 7 m approx.

NO. OF RAINWATER HARVESTING PITS : 5 No.

SIZE OF RAINWATER HARVESTING PIT : Dia-3.3 & Depth-3.5

� Rain water calculation:

S.No. Description of

Area

Area

Considered

(Sq. M)

Harvesting

Factor /

Collection

Efficiency per

area

Retention

time for

capacity of

recharge

tank

(in minutes)

(Peak hourly:

60 mm/hr)

Total Volume of

Water Available

for Rain Water

Collection (Cubic

Mtrs) (Peak)

1 Water Available

from Terraces of

buildings and

other roof-top

surfaces

11650 0.85 15 149 Cubic Mtrs

Note: All dimensions are in m0.4 m

0.4

m0

.4 m

0.4

m

0.4 m



18

1.3.2 Waste Generation and Management

1.3.2.1 Municipal Solid Waste

Category Type of Waste Color of Bins Disposal Method Total

Waste

(Kg/day)

Bio Degradable Organic Waste Green Vermi-composting

site within the

project site

19

Non-Biodegradable Recyclable Waste Blue Authorized

Recycler

7

Non-Biodegradable Inert Waste Black Nearby Landfill

Site

1

Total 27 Kg/day

1.3.2.2 Process Waste (Non-Hazardous)

S. No. Solid waste Quantity of

generation,

kg/day, approx.

Method of disposal

1. Raw hide trimmings 150 Manufacturing of glue unit

2. Fleshings and trimmings

of pelt

5000 @ 60%

moisture

Manufacturing of glue, poultry

feed manufacturing unit

3. Wet-blue shavings and

unusable splits

2300 Leather board manufacturing

unit

4. Leather trimmings 100 Small leather goods

manufacturing

5.

Dusted salt 500

Reuse for salting of raw hides

and skins

6. Shave dust 500 used as fuel in boiler

7.

Buffing dust 150

disposed off at TSDF site of the

area

1.3.2.3 Hazardous Waste

Process Waste:

Used Oil: Approx. approx. 1000 lt/year of used oil from machineries/D.G. Set will be

carefully stored in HDPE drums in isolated covered facility. The used oil will be sold to



19

vendors authorized by Central Pollution Control Board for the treatment of the same.

Suitable care will be taken so that spills / leaks of used oil from storage could be avoided.

MEE Residue: Approx.2500 kg/day of Salts from the MEE shall be generated &disposed of at

Secured land fill at TSDF (UPWM) at Rania, U.P.

ETP Sludge: Approx.1200 kg/day of Sludge from the ETP will be generated mainly from the

bioreactor which will contain hazardous and toxic substances and the same will be disposed

at TSDF site at Rania, U.P.

1.3.3 Air Emissions and Control

Following will be the sources of Air emissions during operation phase:

1. D.G. Sets: 1 x 1000 KVA, 1 x 600 KVA, 1 x 250 KVA & 1 x 100 KVA

Fuel: Low Sulphur Diesel of 200.0 Lt/Hr shall be used for D.G. Sets.

2. Boiler- 1st boiler of capacity 0.5 TPH& 2nd Boiler of capacity 1 TPH shall be installed.

• Fuel: Rice Husk of 125 kg/hr for Boiler-1 & 250 kg/hr for Boiler-2 (Coal shall be used

as back-up fuel)

3. Vehicular emissions

4. Fugitive Emissions

Following measures shall be adopted to mitigate the air emissions:

� The major air pollutants released from the leather cluster are gases like VOCs,

sulfides, ammonia, dust etc. released from various processes and NOX, SO2 and PM

from DG Sets & Boiler.

� For mitigation of impacts of air pollution, common stack of height minimum 30 m

above ground Level shall be provided for the boilers and stack height of 6 m above

roof level for 1 x 1000 KVA, 1 x 600 KVAD.G. sets &stack height of 3.2 m above roof

level for 1 x 100 KVA, 1 x 250 KVA D.G. sets shall be provided.

� Also Multi cyclone dust collector will be provided to control particulate emissions

from boiler.

� High volume/low pressure guns will be used for spraying during finishing.



20

� Area under plantation/greenery will be 11451 sqm i.e. 33 % area after expansion.

The plantation work for green belt development shall be carried out as per CPCB

guidelines.

� Deliming should be done in a closed vessel to reduce release of H2S.

� Ambient air quality would be regularly monitored to ensure that ambient air quality

standards and suggested limits will be met at all the time.

� Leather finishing operations shall be done in a designated room to mix finish

coatings.

� The conveyors of fuel are suitably covered with hood or enclosures to control

fugitive emissions.

� For transportation of raw material and finished leather, it is expected 5 trucks shall

be used.To control the impact, dust suppression systems (water spray) will be used

as per requirement at the construction site. Construction materials will be fully

covered during transportation to the project site by road.

1.3.4 Power Requirement Source & Back-up

The proposed power requirement is about 1500 KVA, which will be supplied by U.P.

Electricity Board. For Power back-up D.G. set of capacity 1 x 1000 KVA, 1 x 600 KVA, 1 x 250

KVA & 1 x 100 KVA is proposed.

1.3.5 Noise Pollution Management

To reduce Ambient Noise level the following measures will be adopted --

� Green Belt- To reduce the ambient noise 33% green area will be adopted.

� DG Set- Shall be bought Acoustic Enclosed

� Noise generating units like Machinery area, canteen etc. will be well insulated with

enclosed doors.

� Maintenance of vehicles and machinery will be done in a sustainable manner to

ensure best performance and less loss.

� Vehicle and people flow during shift changes shall be regulated by allowing exits in a

phased manner.



21

1.3.6 Safety

Following are the strategies to improve the safety of the people and industry:

• Use of proven technologies and equipment

• Use of latest safety process know-how

• Modern risk assessment techniques to design effective safeguarding system for all

critical locations in the process

• Design plant in accordance with applicable codes and standards and maintain

standard engineering practices during detailed engineering

• Ensure safety, occupational health and environmental aspects

• Locate storage tanks in isolated area

• Pressure relief valves in all pressure vessels.

• Fixed detection system with alarms and data logging

• Trained personnel made fully aware of the hazards of process and operations.

Personnel must also be informed of the health hazards

• Minimize unnecessary exposure to airborne contaminants and direct exposure to

chemical hazards

• Good housekeeping

• Emergency showers and eye wash facilities at appropriate locations

• Health surveillance programs

A suitable organization shall be implemented to manage the safety of people and plant. The

organization shall be responsible for building and maintaining “a culture of safety” and shall

thrive to elevate safety to near religious levels. Suitable systems shall be designed and

implemented for safety training and awareness.

A suitable fire protection system with dedicated firewater network for the whole complex

shall be designed and installed. A dedicated fire alarm system and special arrangements to

protect control rooms in case of fire shall also be commissioned as part of the project.



22

1.4 LAND DETAILS

1.4.1 Land Form & Land Use

The land has been allotted to M/s Leayan Global Pvt. Ltd. which is located outside the

industrial land. Hence,there will be change in land use from vacant land to industrial use.

Land papers are attached in annexure IV.

1.4.2 Existing Infrastructure around the Site

1.4.2.1 Routes or facilities used by the public for access:

Particular Distance

NH -02

NH-25

Paman Railway station

Railway station in bhaupur

Railway station at Maltha

Adjacent

Adjacent

5.2Km S

7.8 Km NE

10.0 Km NW

1.4.2.2 Social Infrastructure:

Particular Distance

School at Rania

Post office in Rania

Central bank in Sachendi

Police Chauki in Rania

1 Km W

1 Km NW

8Km ENE

1 Km W

1.4.3 Proposed Infrastructure

1.4.3.1 Processing Area

1.4.3.2 Green Belt

Green belt planning has been done as per guidelines laid by CPCB. With ecological

perspectives for the proposed project taking into consideration and availability of space and



23

other aspects. This will help in increasing the aesthetic effect of the environment. Green

belt/greenery will be developed along most of the periphery of the project area as well as

along roads. Area under plantation/greenery will be 11451 Sqm (33 % of plot area). The

trees planted will be of adequate height. Any tree that does not survive will be replaced.

Ornamental trees will also be planted to improve the aesthetic looks of the project area. The

following characteristics have been taken into consideration while selecting plant species for

green belt development and tree plantation.

• They shall be fast growing and tall trees.

• They shall be perennial and evergreen.

• They shall have thick canopy cover.

• They shall have large leaf area index.

Since tree trunks are devoid of foliage, scrub should form there to give coverage to the

trunks. The trees will maintain regional ecological balance and conform to soil and

hydrological conditions. Indigenous species would be preferred. Before planting of trees,

seedlings, saplings, grass species, shrubs, soil preparation, soil amendments etc are to be

undertaken well in advance. For proper survival and healthy growth of plant species a

nursery is also maintained at the site. It is ensured that proper density of plants is

maintained at site. Post plantation care is also necessary and maintained in planned and

scientific manner. Fast growing, huge foliage, tolerant to air pollution trees are proposed for

green belt.

Trees

S.No Botanical Name Local Name

1 Adina cordifolia Kadamba

2 Albizia lebbek Siris

3 Albizia odoratissima Black siris

4 Alstonia scholaris Chittvan

5 Azadirachta indica Neem

6 Butea monosperma Flame of Forest

7 Cassia pumila Yellow cassia



24

8 Delonix regia Gulmohar

9 Ficus glomerata Gular

10 Ficus benjamina -

11 Ficus gibbosa Chanchir

12 Morus alba Mulberry

13 Saraca asoka Asoka

14 Terminalia arjuna Arjun

Shrubs

S.No Botanical Name Local Name

1 Abutilon indicum Country mallow

2 Acccia leucophloea Distillers acacia

3 Bauhinia acuminata Kanchan

4 Bougainvillea spectabilis Bougainvillea

5 Duranta repens -

6 Hamelia patens Scarlet bush

7 Ixora chinensis -

8 Lawsonia inermis Mehedi

9 Murraya paniculata Marchula/Kamini

10 Nyctanthus arbor-tristis Harsinghar

11 Poinciana pulcherrima Guletura

12 Tabernaemontana divaricata Chandani

1.4.3.3 Sewerage System

The waste water generated shall be treated in ETP followed by R.O. The treated effluent will

be used within the premises for landscaping, Boiler, Process & wash & cooling. It will be a zero

discharge complex.

1.4.3.4 Liquid Waste

ETP followed by R.O. shall be provided for treatment of effluent. The reject of R.O. shall go

in MEE.



25

1.4.3.5 Parking Facility

Adequate parking has been provided on surface for approx.. 50 ECS.

1.4.3.6 Rehabilitation and resettlement Plan

As this is a vacant, there is no need for R&R activities for the activity.

1.5 PROJECT SCHEDULE AND COST ESTIMATES

1.5.1 Likely Date of Start of Construction and Completion

The project will be commenced after 6 months after getting Environmental clearance.

1.5.2 Estimated Project Cost

Cost of project is estimated to be a total of 4800 lacs. A break up of these costs are given in

the table below:

Particulars Proposed Total

Rs in Lacs

Land & site development exps. 300

Factory land 200

Site development exps. 100

Buildings 1000

Factory building 1000

Plant & Machineries 3000

Motor vehicles 40

Office automation equipments 30

Furniture & fixtures 40

Other Misc. assets 40

Preliminary & pre-operative exps. 60

Provision for contingencies 90

Total Capital Cost of Project 4600

Margin money for working capital 200

Total cost of project Rs. 4800 Lacs



26

1.5.3 Cost on Environment Management Plan

S. No Capital Expenditure Amount (Rs. In Lacs)

1 Landscaping/ Plantation 25

2 Solid Waste Management 25

3 Waste Water Management/ETP & CRU &

MEE

600

4 Air Management & Multi Cyclone Dust

Collector System

50

5. Misc. 25

Total Rs. 725 lacs

S. No Recurring Expenditure Amount (Rs. In Lacs/Year)

1 Landscaping 12

2 Monitoring (Environment) 5

3 Solid waste management 10

4 Waste Water Management 60

5 Air Management & Multi Cyclone Dust

Collector System

5

Total Rs. 92 Lacs/Year

1.6 PROJECT BENEFITS

� It will be an environmentally sustainable project.

� It will attract people to develop organized tannery Industry.

� Organized methods for processing unit raw hide to finish.

� It will provide direct and indirect employment to local people.

� Approx. 61.7% of water requirement shall be met by treated water.

� Leather Industry is a large and growing domestic market. There will be economic

benefit due to export oriented unit for production.

� Environment Friendly technology shall be used.

� The process waste will act like a by-product and shall be sold to leather Board

manufactures, glue manufacturer etc.

� Addition of revenue to the state by taxes.

� The industry will have a Zero Liquid Discharge system and shall adopt all the

necessary steps to protect the environment.



27

AAAANNEXURE NNEXURE NNEXURE NNEXURE I:I:I:I: DISCLOSURE OF ENVIRODISCLOSURE OF ENVIRODISCLOSURE OF ENVIRODISCLOSURE OF ENVIRONMENTAL NMENTAL NMENTAL NMENTAL CONSULTANTCONSULTANTCONSULTANTCONSULTANT



28



29

ANNEXURE ANNEXURE ANNEXURE ANNEXURE II:II:II:II: TOPOGRAPHICAL MAPTOPOGRAPHICAL MAPTOPOGRAPHICAL MAPTOPOGRAPHICAL MAP



30



31

ANNEXURE ANNEXURE ANNEXURE ANNEXURE III:III:III:III: LAYOUT PLANLAYOUT PLANLAYOUT PLANLAYOUT PLAN



32



33

ANNEXURE ANNEXURE ANNEXURE ANNEXURE IIIIVVVV:::: WATER MANGEMENTWATER MANGEMENTWATER MANGEMENTWATER MANGEMENT



34

Water Management

Water consumption & source & Waste water generation

Total water requirement will be 655 KLD (fresh water- 258 KLD & treated water-397). The

fresh water usage will be approx. 16.6 KL/tonne of hide & skin. The water will be required

mainly for Domestic process & wash, Boiler, Gardening and Cooling. purpose as per details

below. The water requirement will be met from Ground water supply after getting

permission from CGWA. The water management is given below:

WATER MANAGEMENT

Usage Population Factor in

LPCD

Total Water

requirement in KLD

Waste Water

Discharge in KLD

Domestic

Staff 150 45 7

Visitor 30 15 1

Sub-Total 8 6

Process 527 434

Boiler 60 5

Cooling 10 Nil

Gardening 50 Nil

Total 480 655 KLD 445 KLD

Break-up of the Effluent generation in different operations of the tannery

Raw to tanning

Volume of effluent generated

(in lt.) per tonne of raw

material

Soaking 1950

Liming 3200

Fleshing 2500

Washing 3500

Deliming 3400

Washing 2500



35

Pickling 2900

Chrome tanning 1620

Retanning, dyeing fatliquoring 4100

Finishing 2350

Total effluent generation per tonne of raw material in KL 28 KL/tonne of hide & skin

Volume of effluent generated per day @ 15.5 t/d, m3 434 KLD

WATER BALANCE

Domestic8 KLD

Process & wash

250 KLD

Waste Water

6 KLD

Waste Water

206 KLD

Gardening

50 KLD

Waste Water

445 KLD

Treated Water397 KLD

Fresh Water Requirement258 KLD

R

E

C

YC

LE

D

W

A

T

E

R

Waste Water

228 KLDNil

Waste Water

Total Water Requirement (655 KLD)

Process & wash

277 KLDBoiler

60 KLD

5 KLDWaste Water

Detailed Treatment of Waste water is given in water balance given below

Treated Water of 397 KLD for reuse

Cooling

10 KLD

NilWaste Water



36

Process & Operation of waste water treatment in ETP Followed by R.O.

� The effluent treatment will be based Zero Liquid Discharge (ZLD). Total waste water

generated is 445 KLD out of which total Process waste water generated from the

proposed Leather Processing unit will be approx. 434 KLD (28 KL/tonne of hide).

� Leather Processing unit will be directed to discharge the process waste water

separately at the utility area into three categories namely Soaking waste water

having high TDS, Chrome Tanning waste water & other general waste water.

� From the Utility area the soaking waste water of 30 KLD shall be forced solar

evaporated. The salt recovered from it shall be reused.

� The waste water of 25 KLD shall be received from chrome tanning. Chrome shall be

recovered from chrome containing waste water through Chrome recovery unit & the

High TDSChrome General

Forced Solar evaporation

Recovered

Salt for reuse

CRU

Solid Salt of

Cr for reuse

WaterETP Capacity –500

KLD

(Total waste water

–414 KLD

Solid Sludge

R.O. (420 KLD)

30 KLD

25 KLD379 KLD

Total Process Waste Water 434 KLD

MEE

Water for Reuse in

process & Gardening

24 KLD

20% i.e. 83 KLD Reject 80 % i.e. 331 KLD

Other waste Water from Domestic &

Boiler (11 KLD)

Total Waste Water (445 KLD)

Crystallizer

TSDFAtmosphere

Concentrate

Salts to TSDF

80 % i.e. 66 KLD

Condensate Water

for Reuse in Boiler

& process



37

treated water from CRU will go to ETP for further treatment. The chrome recovered

shall be reused. The detail are given in figures given ahead.

� The general process waste water of 379 KLD shall be treated in ETP.

� All other waste Water (11 KLD) from Domestic, Boiler shall also be treated in ETP.

� Total 414 KLD effluent will be treated in ETP of 500 KLD followed by R.O. of 420 KLD.

The treated effluent of 331 KLD (80%) would be reused for Gardening, Process &

wash & reject of 83 KLD (20%) generated from R.O. shall be sent to multi-effect

evaporator for further treatment. The concentrate obtained from MEE will go into

crystallizer. Salt received from the crystallizer shall be disposed of at Secured land fill

at TSDF (UPWM) at Rania, U.P. Approx. 66 KLD condensed clean water shall be

obtained from MEE & shall be reused for Boiler, cooling & process. All the treated

water shall be reused. Thus, It will be a Zero Liquid Discharge unit.

� The treatment in the ETP followed by R.O. will be based on five stages of treatment

as mentioned below and in the Figure.

1. Primary treatment: physical-chemical treatment, in which majority of suspended and

colloidal particulate pollution load is treated

2. Secondary treatment: biological treatment

3. Tertiary treatment: chemical and filtration to make the effluent treatable in reverse

osmosis

4. Quaternary treatment: Reverse osmosis treatment consisting of Ultrafiltration

followed by two stages reverse osmosis

5. Quinary treatment: Mechanical evaporation of reject saline effluent

A schematic flow diagram of the water reuse in the ETP followed by R.O. is provided below.



38

Fig.: Schematic of water flow in proposed ETP of Leayan Global Pvt Ltd at Rania, Kanpur, U.P.

Description of treatment:

a. Primary treatment

Bar screens are provided in the screen chamber to retain the coarse particles at the inlet to

the receiving sump. Effluent from the receiving sump will be sent to a presettler in which

easily settleable solids will be settled at the bottom and removed. The overflow from the

presettler will be sent to equalization tank. Equalization is required provided to equalize the

characteristics of effluent arising out of various operations. The equalized effluent from

equalization tank is pumped uniformly to flash mixer where lime and alum solutions are

dosed.In the flash mixer, lime, alum and polyelectrolyte are added based on actual

characteristics of the effluent.After mixing the chemicals in the flash mixer, the

agglomeration of colloids is made to form bigger flocs in the flocculator.The effluent from

the flocculation tank is sent to primary clarifier for sedimentation. During sedimentation the

solid and liquid parts are separated using gravitation force. From the clarifier the effluent

comes from top and the sludge comes from the bottom of the clarifier.

b. Biological treatment

The effluent leaving the primary clarifier is taken for biological treatment. Extended aeration

activated sludge process has been adopted for the treatment of the effluent. The aerobic

process is capable of converting organics to innocuous end products or to cellular mass. The

Tannery operations:

Effluent generation,

pretreatment within tanneries

Primary, physico-chemical, treatment

Secondary, biological, treatment

Tertiary (chemical+filtering+etc.) treatment

Quaternary treatment:

Reverse Osmosis treatment

Quinary treatment: Mechanical

evaporation to remove residual

solids



39

organics are metabolized by a diverse group of micro-organisms to carbon-dioxide and

water. At the same time a sizeable fraction is converted to cellular mass.

Oxygen is required for the sustenance of the microbes. The microbes convert the organics in

the effluent to biomass. Oxygen shall be supplied in the form of air. Air from blowers shall

be distributed in to the aeration tanks through the fine bubble diffusers. The oxygen

transfer efficiency of the diffusers is more than the other aeration equipment.

The over flow from aeration tank flows to a secondary clarifier where the biomass formed in

the aeration tanks shall settle as sludge. The sludge settled in the secondary clarifier shall be

re-circulated back to aeration tanks to maintain the desired microbial population in the

aeration tanks and the excess sludge shall be sent to sludge drying beds. The overflow from

secondary clarifier shall flow to a collection sump from where the effluent shall be pumped

to an automatic sand filter to remove any fine matter that may be present in the effluent.

The sludge generated from primary sedimentation and excess secondary sludge are

dewatered in a filter press.

c. Tertiary treatment

The treated effluent from the secondary clarifier need to be subjected to a pre-treatment

involving softening and micron filtration to make it fit for treatment in an RO system. The

effluent from the ETP would be collected in an intermediate storage tank from where it is

pumped to a flash mixer where softening chemicals such as soda ash, lime and

polyelectrolyte would be dosed. The mixture thereafter would be admitted to a re-activator

clarifier for settling of the chemical sludge. The clarified effluent is then collected in another

tank and pumped through a pressure sand filter followed by a micron filtration prior to the

RO membranes.

d. Reverse osmosis

Reverse osmosis is used to purify water and remove salts and other impurities in order to

improve the colour, taste or properties of the fluid. Reverse osmosis uses a membrane that

is semi-permeable, allowing the fluid that is being purified to pass through it, while rejecting

the contaminants that remain. Most reverse osmosis technology uses a process known as

cross flow to allow the membrane to continually clean itself. As some of the fluid passes

through the membrane the rest continues downstream, sweeping the rejected species away



40

from the membrane. The process of reverse osmosis requires a driving force to push the

fluid through the membrane, and the most common force is pressure from a pump. The

higher the pressure, the larger the driving force.

The filters will be backwashed automatically after they log on set operation hours or the

pressure drop exceeds set value, whichever occurs first. The ultrafiltration (UF) system will

be backwashed at a set interval automatically.

e. Evaporation of reject

The reverse osmosis plant will provide clean water to an extent of about 80%. The

remaining effluent will have mixture of concentrate of residual salts and other ingredients

which were not treatment in the previous stages of treatment. This liquor has be

evaporated completely. This evaporation is done in mechanical evaporator based on

multiple effect evaporator. A five effect evaporator is proposed.

In a multiple-effect evaporator, water is boiled in a sequence of vessels, each held at a lower

pressure than the last. Because the boiling temperature of water decreases as pressure

decreases, the vapor boiled off in one vessel can be used to heat the next, and only the first

vessel (at the highest pressure) requires an external source of heat.

The concentrated obtained from MEE will go to crystallizer & the sat obtained from it will be

disposed off at TSDF. The MEE will provide clean water (condensate) to an extent of about

80%.



41

Schematic Diagram of ETP followed by R.O.

Process Flow Chart of Chrome Recovery Unit

Bar

Screens

Rejected

TankFlash Mixer

Settling

TankFeed Tank

Multi

Grade

Filter

Rev.

Osmosis

Stage-III

Rejected

Storage

Tank

MEE

Filter PressSludge

Sump

Sludge

Drying

Bed

Recovered

Water for

Reused

Collecting

TankFlash Mixer

Primary

Settling

Tank

Aeration

Tank

Secondary

Settling

Tank

Baffle

Channel

Tertiary

Settling

Tank

Tertiary

Treated

Effluent

Multi

Grade

Filter

Rev.

Osmosis

Stage-I

Rev.

Osmosis

Stage-II

Iime,Alum,PE

Sludge will be

disposed off at

TSDF

Soda,Ash,Lime,

PE

Soda,Ash,Lime,

PAC

Raw

Effluent

Filtrate

Return Sludge

Permeate

Permeate

Sludge will be

disposed off at

TSDF

Permeate

Condensate

for reuse

Concentrate

to crystallizer

Solids to TSDF

Chrome Tanning Drums

Chrome Liquor Collection Tank

Reactor (MgO Dosing)

Chrome Dissolving Tank (H2SO4 is added)

Chrome Storage Tank

Recovered Chrome to Drum by

Pipe/Container

Supernatant Discharge may be

recycled for Pickling/Soaking

Operation



42

Characteristics of Inlet & Outlet

S.

No.

Parameter Equalized

effluent

(Raw

effluent)

Primary

treated

effluent

Secondary

treated

effluent

Tertiary

treated

effluent

(inlet to

RO plant)

RO

permeate

RO

reject

1. pH 6.5 – 8.5 7.5 – 8.0 7.5 – 8.0 6.0 - 8.0 6.0 - 8.0 6.0 –

8.0

2. Suspended

Solids (mg/l)

2000 –

3500

400 –

600

< 100 <5 BDL 100 –

150

3. B.O.D, 5 day

20 C (mg/l)

1500 –

2000

700 –

1000

20 – 40 < 20 BDL 150 –

180

4. Total

dissolved

Solids (mg/l)

12,000 –

17,000

12,000 –

17,000

12,000 –

17,000

12,000 –

17,000

<500 35,000

–

45,000

5. C.O.D (mg/l) 4000 –

6000

2000 –

3500

200 – 400 100 – 180 <20 1400 –

1800

6. Sulphides

(mg/l)

150 – 200 < 2 < 2 < 2 BDL BDL

7. Ammoniacal

Nitrogen

(mg/l)

50 – 90 30 – 40 15 – 20 15 – 20 BDL 80 –

100

8. Total

Chromium

(mg/l)

80 - 140 < 2 < 2 BDL BDL BDL

9. Chlorides

(mg/l)

8000 –

12000

8000 –

12000

8000 –

12000

8000 –

12000

<200 20,000

–

40,000

10. Sulphates

(mg/l)

1500 -

4000

1500 -

4000

1500 -

4000

1500 -

4000

<25 7000 –

10000

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