ETP DBR Rev B-16.08

BGR ENERGY SYSTEMS LTD

ENVIRONMENTAL ENGINEERING DIVISION

Sheet 1 of 26

DOCUMENT NO: GID-1675-ME-ETP-BS-1018

DBR FOR EFFLUENT TREATMENT PLANT

Rev B

16.08.2011

20

DATE PREPARED BY PRAVIN/HARI

CHECKED BY PUVIARASAN

APPROVED BY BALASUBRAMANIAN

ADHUNIK POWER & NATURAL RESOURCES LIMITED

MP SUPER THERMAL POWER PLANT

PHASE -I (2 x 270 MW)

DESIGN BASIS REPORT

EFFLUENT TREATMENT PLANT

BGR ENERGY SYSTEMS LIMITED ENVIRONMENTAL ENGINEERING DIVISION

443, ANNA SALAI TEYNAMPET, CHENNAI - 600018

PH 044 24326171, FAX 044 24315678 E Mail – [email protected]

AUGUST –2011

4694

Stamp



Sheet 2 of 26



Rev B

CONTENTS

Sr. No Title Page. No.

1.0 Design Philosophy 3

2.0 Process Description & Treatment Scheme For Oily

Wastewater 5

3.0 Oily Wastewater Treatment Scheme 5

4.0 Process Flow Chart For Oily Wastewater Treatment 7

5.0 Technical Specification for Oily Wastewater Treatment 8

6.0 Process Description for CHP Process Wastewater 13

7.0 CHP Process Wastewater Treatment Scheme 13

8.0 Process Flow Chart For CHPWastewater Treatment 14

9.0 Design Philosophy for CHP Wastewater Treatment 15

10.0 Technical Specification for CHP Process Wastewater

Treatment 18

11.0 Process Description For Sludge Wastewater Treatment 20

12.0 Sludge Wastewater Treatment Scheme 20

13.0 Process Flow Chart For Sludge Wastewater Treatment 21

14.0 Technical Specification for Sludge Treatment Stream 22

15.0 Treated Water Quality 26

REFERENCE

Sr. No. Drg. No. Title

1 GID-1675-ME-ETP-XB-

1036 P&I Diagram for Effluent treatment plant

REVISION STATUS

Sr. No. Rev Date Details

1 A 21.07.2011 First Issue for Approval

2 B

16.08.2011 Revised based on DCPL letter no: 3223 dt

11.08.2011



Sheet 3 of 26



Rev B

1.0 DESIGN PHILOSOPHY

1.1 Objective:

This document provides basis of design, technical particulars and the design details of

collection and treatment for the oily wastewater and process effluent water.

1.2 Effluent Details:

The table below furnishes the list of effluent generating from various region of power

plant,

A. Oily Wastewater Stream:

Sr.No. Stream Location

1 Fuel oil storage area oily waste water Fuel oil unloading Area

2 Transformeryard area oily wastewater Transformer yard

3 Power house area oily waste water TG building

B. CHPWastewater Stream:


1 Coal stockpile runoff CHP area

2 Coal Handling Plant Waste CHP area

C. Sludge Handling System:


1 PTP Clarifier PTP Area

Boiler Blow down Sump (I & II) in Boiler Area

One (1) number Boiler blow down sump for each unit with two (2) numbers (1W +

1S) blow down transfer pumps will be provided in the boiler area. The blow down water

from the blow down sumps will be transferred to Ash Water Sump by boiler blow down

transfer pumps. Service water will be used for quenching the boiler blow down water.

For Quenching service water will be added in the boiler blow down sump.

B



Sheet 4 of 26



Rev B

Back wash waste from SSF

Side stream filtration back wash waste will be collected & stored in sump located in SSF

area. The collected effluent will be transferred to Ash slurry sump by two (2) numbers

(1W + 1S) SSF waste water transfer pumps.

Filter Backwash Waste

Filtration back wash waste will be collected from DMF, ACF, UF Waste from DM Plant,

DMF Back wash waste from PW System& stored in sump. The collected effluent will be

transferred to the Stilling Chamber in PTP by Two (2) numbers (1W + 1S) Filter

back wash waste transfer pumps.

Miscellaneous floor drains

Other miscellaneous building/pump house floor drains will be connected to the nearest

storm water drain.



Sheet 5 of 26



Rev B

2.0 PROCESS DESCRIPTION & TREATMENT SCHEME FOR OILY WASTEWATER

2.1 Oily Wastewater Process Description:

2.1.1Transformer Area

In transformer area two (2) sumps will be provided to collect oily waste water during

periods of rainfall. The Sump will have four numbers (2W + 2S) screw pumps to

transfer the effluent to common oily waste retention pit.

2.1.2 Power house Area

In Power house area two (2) sumps will be provided to collect oily effluent generated

from Power house building. This effluent is generated from floor washings, leakage from

pumps, hydraulic couplings, oil leakage from oil burners etc.Oily waste water from this

sump will be pumped to common oily waste retention pit by four numbers (2W + 2S)

of screw pumps.

2.1.3Fuel Oil Handling Area

From the Fuel Oil handling Area, the oily waste is transferred to Common Oil Waste

Retention Pit for further treatment (By others).

3. Oily Wastewater System:

Oily wastewater generated from the various zones will be transferred to common oily

Waste Retention pit to get homogeneous effluent for further treatment. The equalized

effluent will be transferred to oily water separator by Two (2) numbers (1W + 1S) screw

pumps for free oil separation. One (1) x 75 cum oily water separator will be located in

ETP area & will be having the capacity to handle maximum of 1000 ppm of oil in water.

The slop oil from the oily water separator will be collected in slop oil storage tanklocated

in effluent treatment plant. The treated water from Oily water separator will be collected

in treated water collection pit and then transferred to Ash water sump by Two (2)

numbers (1W + 1S) screw pumps. Sludge collected fromoily water separator will be

collected in CPI sludge pit and then transferred to Ash slurry sump by Two (2) numbers

(1W + 1S) vertical centrifugal pump. For sludge pit Two (2) numbers (1W + 1S) Twin

lobe type blowers shall be provided for keeping the sludge in suspension.

B

B



Sheet 6 of 26



Rev B

3.1Treatment Scheme

Oily Effluent Transfer Pumps for Power House Area

Oily Effluent Transfer Pumps for Transformer Yard Area

Common Oil Waste Retention Pit

Oil Water Separator-CPI

CPI Feed Pumps

Retention Pit for Treated Water from Oil Water Separator

Oil Water Separator Treated Effluent Transfer Pumps

Slop Oil Storage Tank

CPI Sludge Pit

CPI Sludge Transfer Pumps

CPI Sludge Pit Blowers



Sheet 7 of 26



Rev B

4.0 PROCESS FLOW CHART FOR OILY WASTEWATER TREATMENT

CPI Separator

CPI Sludge Pit

Slop Oil

Storage Tank

Treated Water

Retention Pit

Transformer Yard

Oily Wastewater

Sump

Power House Area

Oily Wastewater

Sump

Fuel Oil Storage

Area Oily Waste

Water Sump

Common Oily Waste Retention Pit

Ash Slurry

Sump Oil Disposal

through Drums

Ash Water

Sump

SSF Backwash

Waste

Boiler Blowdown

I & II



Sheet 8 of 26



Rev B

5.0 TECHNICAL SPECIFICATION FOR

OILYWASTEWATER TREATMENT

The below table furnishes the technical specifications of oily wastewater sumps and

pumps.

Sr.No Description Tag Number Specification

1.0 Power House area service

oily waste sump OWS-1

(CONSTRUCTION BY

CLIENT)

Quantity 2 No

MOC RCC

Type Under ground, rectangular

with flat bottom.

2.0 Power House area service

oily waste transfer pump

TAOWTP

1/2

Quantity 4 Nos (2W + 2S)

Capacity 40 m3/hr

Type Screw pump

Head Later

Duty Intermittent

Location Outdoor

Fluid to be handled Service waste from power

house area

MOC

Casing 2 % Ni CI to IS 210 FG

260

Rotor SS 316

Stator Nitrile/EPDM

Shaft SS 316

3.0 Transformer yard oily

waste sump OWS-2

(CONSTRUCTION BY

CLIENT)

Quantity 2 No

MOC RCC


with flat bottom.

4.0 Transformer yard oily

waste transfer pump

TYOWTP

1/2


Capacity 5 m3/hr

Type Screw pump

Head Later

Duty Intermittent

Location Outdoor

B

B

B

B



Sheet 9 of 26



Rev B

Fluid to be handled Oily waste from

transformer yard area.

MOC


260

Rotor SS 316

Stator Nitrile/EPDM

Shaft SS 316

5.0 Common oily waste

retention pit OWS-3

(CONSTRUCTION BY

CLIENT)

Quantity 1 No

Capacity 100 m3

MOC RCC

Type

Above ground,

rectangular with flat

bottom.

6.0 CPI Feed Pump CPI 1/2

Quantity 2 Nos(1W + 1S)

Capacity 75 m3/hr

Type Screw pump

Head Later

Duty Intermittent

Location Outdoor

Fluid to be handled Oily waste from common

oily waste retention pit

MOC


260

Rotor SS 316

Stator Nitrile/EPDM

Shaft SS 316

7.0 Oily water separator OWS

Quantity 1 No

Capacity 75 m3/hr(Net)

Type Plate or Tube with counter

flow/cross flow

Oil concentration at inlet 1000 ppm Max.

Oil Concentration in treated

water 10 ppm Max

Suspended solids at inlet 300 ppm Max

Suspended solids in treated

water 20 ppm Max

Angle of inclination of plates 600Max.

B



Sheet 10 of 26



Rev B

or tubes

MOC

Body RCC/Carbon Steel/GRP

Plates

or tubes

UV inhibited virgin

FRP/GRP/PVC

8.0 Slop oil storage tank SOST

Quantity 1 No

Type Vertical cylindrical

Capacity 2 m3/hr

MOC Carbon Steel

9.0

Treated water from oily

water separator storage

tank

TWST (CONSTRUCTION BY

CLIENT)

Quantity 1 No

Capacity 50 m3

MOC RCC

Type Above ground rectangular

with flat bottom

10.0

Oily water separator

treated effluent transfer

pump

OWSTETP

1/2

Quantity 2 Nos (1W+1S)

Capacity 100 m3/hr

Type Screw pump

Head Later

Duty Intermittent

Location Outdoor

Fluid to be handled Treated water from oily

water separator

MOC


260

Rotor SS 316

Stator Nitrile/EPDM

Shaft SS 316

11.0 CPI Sludge Pit CPISP (CONSTRUCTION BY

CLIENT)

Quantity 1 No

Type Above ground Rectangular

with flat bottom

Capacity 10 m3

MOC

RCC

B

B

B



Sheet 11 of 26



Rev B

12.0 CPI Sludge pit blower CPISPB 1/2

Quantity 2 Nos ( 1W+1S)

Air flow rate considered 0.4 m3/m3/hr of Effluent

Head 0.45 kg/cm2

Sludge pit capacity 10m3

Air flow rate 10 x 0.4 = 4 m3/hr

Type Rotary, Twin lobe

Duty Intermittent

Blower Capacity provided 36 m3/hr

MOC

Casing CI to IS 210 FG 260

Lobes CS to BS 970 , EN9

Forged

Shaft CS to BS 970 , EN9

Forged

13.0 CPI Sludge transfer pump CPISTP 1/2


Capacity 5m3/hr

Service Sludge from oily water

separator

Head Later

Type Vertical centrifugal type

Duty Intermittent

MOC

Casing 2.5 % Ni CI to IS 210 FG

260

Impeller Stainless Steel – Gr.316

Shaft Stainless Steel – Gr.410

14.0 Quenched Boiler blow

down sump I & II BBDS – 1/2

(CONSTRUCTION BY

CLIENT)

Quantity 2 Nos (one for each unit)

Capacity 50 m3 for each

MOC RCC


with flat bottom.

15.0 Boiler blow down transfer

pumps BBTP – 1/2

Quantity Four (4) Nos (two for

each units)

Capacity 50 m3/hr

Head Later

Duty Continuous

B

B



Sheet 12 of 26



Rev B

Service Boiler drain waste water

Type Vertical Centrifugal pump

MOC

Casing 2.5 % Ni CI as per IS 210

FG 260



16.0 SSF Backwash waste

water sump SSFSP (By Client)

Quantity 1 No

Capacity 300 m3

MOC RCC


with flat bottom.

17.0 SSF Backwash waste

water transfer pump

SSFWTP –

1/2


Capacity 150 m3/hr

Head 25mwc

Type Vertical Centrifugal pump

Duty Intermittent

Service Backwash waste from side

stream filtration system

MOC

Casing 2.5 % Ni CI as per IS 210

FG 260





Sheet 13 of 26



Rev B

6.0 PROCESS DESCRIPTION FOR CHPPROCESS

WASTEWATER

Process Description for Process Wastewater Stream:

Coal Pile area rainfall run-off is generated due to rainfall on it. Run-off from the coalpiles

may be collected by a Drainage System around the coal pile and led by gravity to aCoal

Particle Settling Basin formed out of a low lying area inside the Plant itself. The coal

Particle Settling Basin will have two chambers, one Operating and OneStandby. When

one chamber will be full, the second chamber will be put into service.The filled in basin

can be cleaned during dry season. The dried solid sludge i.e. coalparticles can be sold or

fed back into the coal handling system.

Coagulant & Alkali dosing system is provided at the inlet of the settling Basin.

TheDecanted Water is collected in a Decanted Water Sump and therefore pumped

fordischarge to the Rainwater Harvesting Pond or Storm Water Drain.

7.0 CHP Process Wastewater Treatment Scheme:

Coal Particle Settling Basin comprises of two (2) compartment of 3750 m3/hr each which

are used to collect the run-off from Coal Pile area. Settled water from the basin will be

collected in Decanted Water Sump of 3750 m3/hr and then it is transferred to Rain

Water Harvesting Pond/ Storm Water Drain by Four (4) numbers (3W + 1S) vertical

centrifugal pump.

Coal Handling Plant Waste System:

Coal Particle Settling Basin

Coagulant Dosing System

Alkali Dosing System

Decanted Water Sump

Decanted Water Transfer Pumps

Coal Handling Plant Waste Collection Pit

Coal Handling Plant Waste Transfer Pumps



Sheet 14 of 26



Rev B

8.0 Process Flow Chart for CHP Wastewater Treatment

Coal Pile Area

Coagulant Aid Dosing

System

Storm Water Drain

Coal Particle Settling

basin

Alkali Dosing System

Coal Handling

Plant Waste

Collection Pit

Decanted Water

Sump

Rain Water Harvesting

Pond/Storm Water Drain



Sheet 15 of 26



Rev B

9.0 Design Philosophy for CHP Wastewater Treatment

9.1 Coal Stock Pile Runoff

Rainfall run-off from the coal piles shall be collected by a drainage system around the

coal pile and led by gravity to a coal settling pond. The coal settling pond will have two

compartments(one operating and another will be stand by)and will be of suitable design

to allow settlement of suspended coal particles coming out of the coal pile area run-off.

During the heavy rain fall, only initial 60 minutes of rain water will be passed to coal

setting pond and subsequent water will be routed to nearest storm water drain, as it is

not expected to have any significant amount of coal particles. Alkali and Coagulant Aid

dosing shall be provided at the inlet of settling basin.

Coal settling pond will have twin compartments and capacity of each compartment will

be 3750 cu.m

Design Basis:

Suspended solids at inlet : 1000 ppm

Sp.gravity of coal particles : 1.20

Particle density : 750 kg/m3

Particle size to be settled : 50 microns

9.2 Alkali dosing system:

The pH to be maintained is around 7.5.

pH = - log [ H+]

Hence H+= 10 ^ (-7.5) Mol/lt

H+ x OH- = 10 ^ (-14)

OH- = 10 ^ (-6.5) Mol/lt

1 mole of NaOH contains 40 g of NaOH

OH- Concentration as mg/l of NaOH = 10 ^ (-6.5) x 40 x 1000 =0.0126 mg/lt

Hence, for Design Purpose, Consider 1 ppm of NaOH for maintaining 7.5 pH in the

run-off water

B



Sheet 16 of 26



Rev B

Sr. No Description Unit Specification

1 Type of pump -

Diaphragm Type

hydraulically operated

metering pump

2 Duty - Intermittent

3 Volume of compartment m3 3750 (Design)

4 Chemical Caustic solution

5 Design Dosing Rate ppm

1(Design)

6 Specific gravity 1.328

7 Solution Concentration(w/w) % 40.0

8

Chemical Dosing

required/compartment

(40% solution)

lts 85

9 Dosing Tank Capacity lts 100

10 Type of tank Vertical rectangular

with flat bottom

11 Dosing Tank Quantity - Two

12 Dosing Tank MOC RCC with epoxy

painting

13 Dosing Pump Capacity

Provided(10% margin) lph 9

14 Number of Pumps - 2 (1W + 1S)

15 Pump Total Head mwc 20 mwc

16 MOC

Wetted parts SS 316

Diaphragm PTFE

17 Dosing Tank Agitator Quantity - 2 / CS with epoxy

painting

18 Location Chemical house for

Coal Rainfall Runoff

B

B



Sheet 17 of 26



Rev B

9.3 Coagulant aid dosing system:


1 Type of pump -

Diaphragm Type


metering pump


3 Flow rate m3 3750 (Design)

4 Chemical Polyelectrolyte solution

5 Design Dosing Rate ppm 1 (Design)

6 Solution Concentration (w/v) % 1

7 Chemical Dosing

required/compartment lts 375

8 Dosing Tank Capacity lts 375

9 Dosing Tank Quantity - Two

10 Dosing Tank MOC CSRL

11 Dosing Pump Capacity Provided lph 420



14 MOC

Wetted parts SS 316

Diaphragm PTFE

15 Dosing Tank Agitator Quantity - 2 / SS 316

16 Location Chemical house for

Coal Rainfall Runoff



Sheet 18 of 26



Rev B

10.0 TECHNICAL SPECIFICATION FOR

CHP PROCESSWASTEWATER TREATMENT

The below table furnishes the technical specifications of wastewater sumps and pumps.

Sr.No Description Tag Number Specification

1.0 Coal Handling Plant Waste

Collection Pit SP-1

(CONSTRUCTION BY

CLIENT)

Quantity 1 No

Type

Underground,

Rectangular with flat

bottom.

Effective Capacity 250 m3

MOC RCC

2.0 Effluent Transfer Pumps EFTP-1/2


Type Vertical Centrifugal

Location Outdoor

Liquid Handled Coal Handling Plant

Waste

Duty Intermittent

Capacity 250 m3/hr

MOC

Casing 2.5 % Ni CI as per IS

210 FG 260



3.0 Coal Particle Settling

Basin Two compartment SP - 2

(CONSTRUCTION BY

CLIENT)

Quantity 1 No

(Twin compartments)

Capacity/compartment 3750Cu.M for each

compartment

MOC Earthen

Type

Underground,

Rectangular with flat

bottom.

B

B

B

B



Sheet 19 of 26



Rev B

4.0 Decanted water Sump DWS (By Client)

Quantity 1 No

Capacity 3750m3

MOC RCC

Service Decanted water from

Coal settling pond

5.0 Decanted water transfer

pumps DWTP – 1/4

Quantity 4 Nos(3W + 1S)

Capacity 100m3/hr

Head Later

Type Vertical centrifugal

Duty Intermittent

Service Decanted water

MOC


210 FG 260





Sheet 20 of 26



Rev B

11.0 PROCESS DESCRIPTION FOR SLUDGE WASTEWATER

TREATMENT

Process Description:

Sludge from PTP clarifier will be collected in sludge sump. The sludge will be pumped to

sludge thickener & the thickened sludge from thickener under flow will be collected in

Thickened Sludge Collection Pit and then pumped to centrifuge for dewatering the

sludge. Thickener Supernatant will be collected to Thickened Supernatant Collection

Sump. This Supernatant water is transferred to Stilling Chamber for further treatment.

From the centrifuge, the sludge is dumped by means of trucks.Poly is been dosed in the

centrifuge inlet to increasing the efficiency of sludge thickening. The filtrate from

centrifuge is been sent back to thickener for further treatment.

12.0 Sludge Wastewater Treatment Scheme:

Based on the treatment philosophy, the ETP recycle plant will have the following:

Sludge Thickener

Thickened Sludge Collection Pit

Thickener Supernatant Collection Sump

o Thickener Supernatant Collection Pump

Centrifuge Feed Pump

Centrifuge

Poly Dosing Tank with Agitator

o Poly Dosing Pump



Sheet 21 of 26



Rev B

13.0 PROCESS FLOW CHART FOR

SLUDGE WASTEWATER TREATMENT

Sludge Thickener

Thickened Sludge

Collection Pit

Centrifuge

Sludge Dumped

through trucks

Poly Dosing System

Thickened

Supernatant

Collection Sump

Stilling Chamber

(Raw water System)

Sludge from PTP

Area B



Sheet 22 of 26



Rev B

14.0 TECHNICAL SPECIFICATION FOR SLUDGE TREATMENT STREAM

Process Wastewater Quantity:

Sludge from PTP Clarifier will be collected sludge sump and pumped into Sludge

Thickener.

The flow to ETP from PTP Sludge Sump = 110 m3/hr

The filtrate from centrifuge will be 75 % of the feed (75 m3/hr),

Therefore 75 % of 75 m3/hr = 56.25 m3/hr

Taking 20% as hydraulic overloading, then

Total flow to the sludge thickener = 166.25x 1.2 = 199.5 say 200 m3/hr

Sludge Thickener:

The total sludge flow to the thickener will be 24448.1Kg/day considering PTP sludge.

Sludge Thickener Underflow = (24448.1) / 5%

= 488962 kg/d

Centrifuge Outlet Solid load (5%) = 488962 x 0.05 = 24448.1 kg/d

Hence total solid load to thickener = 24448.1 + 24448.1

= 48896.2 kg/d (Sludge from PTP Clarifier + Sludge from Centrifuge)

Hence, one (1) number Sludge thickener will be provided to increase the sludge

concentration from 2% to 5%.

Considering solid loading rate as 100 kg/m2/d, flow area of Sludge Thickener

= (48896.2) / 100

= 488.96 m2

Considering hydraulic loading rate as 6 m3/m2/d, flow area of Sludge Thickener

= (200) / 6

= 33.33 m2

So, the required flow area is 488.96 m2

Hence the Inside Diameter of the Sludge Thickener will be 24.95 m say 25 m.

The water depth (WD) of the Sludge Thickener will be 4.0m. With this the detention time

of the Sludge Thickener will be,

= {[π x (25.02-1.22)/4] x 4.0}/200

= 9.79 hours

B

4694

Polygon

4694

Text Box

The sizing of the thickener will be based on solid concentration of 2% in the influent sludge at the inlet of thickener from the clarifier (refer Bid Specification Sec-IIB/Mech Annexure-I Cl. No.1.01.00 C iii). M/s BGR to revise the thickener size accordingly.



Sheet 23 of 26



Rev B

Hence, Sludge Thickener with dimensions - 25.0 (ID) x 4.0m (SWD) will be provided.

Thickened Sludge Transfer Pumps:

Considering outlet concentration of Sludge Thickener as 5%,

Sludge Thickener Underflow = (48896.2) / 5%

= 977924 kg/d

= 889.02 m3/d (SG = 1.1)

= 37.04 m3/hr

One number of 300m3 (as per tender requirement) capacity, thickened sludge sump will

be provided.

Four (4) no’s (3W + 1S) screw type Centrifuge Feed Pumps of 25 m3/hr will be provided

to feed the Centrifuges from Sludge Thickener.

Hence, four (4) no’s (3W+1S) Centrifuges of 25 m3/hr will be provided.

Sludge Thickener:

Sr.No Description Unit Specification

1 Flow Rate of influent m3/hr 200

2 Size m 25.0 Diameter X 4.0 SWD

3 Quantity Nos 1

4 MOC - RCC (Construction

By Client)

Thickened Sludge Collection Pit:

Sr.No Description Unit Specification

1 Capacity m3 300

2 Size m Later

3 Quantity No 1

4 MOC - RCC (By Client)

B



Sheet 24 of 26



Rev B

Poly dosing system:


1 Type of pump -

Diaphragm Type


metering pump


3 Flow Rate m3 75 (Design)

4 Chemical Poly solution

5 Design Dosing Rate (100 %) ppm 2 (Design)

6 Solution Concentration % 1

7 Specific gravity (100 %) 1.1

8 Chemical Dosing

requirement/compartment lts 164

10 Dosing Tank Capacity (10 %

margin) lts 180

11 Type of tank Vertical rectangular

with flat bottom

12 Dosing Tank Quantity - 2 Nos

13 Dosing Tank MOC CSRL

14 Dosing Pump Capacity Provided lph 15



17 MOC

Wetted parts SS 316

Diaphragm PTFE

18 Dosing Tank Agitator Quantity - 1 / SS with epoxy

painting

B



Sheet 25 of 26



Rev B

Thickened Supernatant Collection System:


1 Tank Capacity m3 160

2 Type of tank Underground

3 Tank Quantity - 1 No

4 Tank MOC RCC

5 Pump Capacity Provided m3/hr 50



8 Type of pump - Vertical Centrifugal


10 MOC


210 FG 260

Impeller SS 316

Shaft SS 410

Centrifuge :


1 Qty Nos 4 (3W+1S)

2 Capacity m3/hr 25

3 Tank MOC SS 316

4 Feed Pump Capacity Provided m3/hr 25



7 Type of pump - Screw Pump


9 MOC-Casing 2% Ni CI to IS 210 FG

260

Rotor / gear SS 316

Stator Nitrile / EPDM

Shaft and shaft sleeve

ASTM A 276 Gr 410 & SS

316

B

B



Sheet 26 of 26



Rev B

15.0 Treated Water Quality

The treated water quality in general will meet the quality as mentioned below. This

is subject to Water analysis provided by you.

Treated Effluent Characteristics:

At Sludge Thickener:

Total Suspended Solids- 50 mg/l

At CPI Outlet:

Oil- 10 mg/l

Total Suspended Solids < 100 mg/l

At Coal Particle Settling Basin Outlet:

Total Suspended Solids < 100 mg/l

Note:

The treated Water Quality is subjected to the following conditions

The Feed Water Quality being equal or better than Quality indicated in the

offer.

Any change in the technical parameter may have a technical and

commercial implication

ETP DBR Rev B-16.08

Documents

Transcript of ETP DBR Rev B-16.08