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Water Management for Industrial Use

This document summarizes water flows for various processes in a pulp and paper mill. It shows over 1,000 cubic meters per hour of total fresh water intake, which is then distributed to different areas like recovery boilers, evaporators, cooling towers and more. Significant amounts of water are lost to evaporation, while other streams are recycled to processes like causticizing and pulp washing. Overall fresh water consumption is calculated to be around 950 cubic meters per hour after accounting for internal recycling and various water losses.

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Srinivasa Rao Venkumahanthi
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152 views3 pages

Water Management for Industrial Use

This document summarizes water flows for various processes in a pulp and paper mill. It shows over 1,000 cubic meters per hour of total fresh water intake, which is then distributed to different areas like recovery boilers, evaporators, cooling towers and more. Significant amounts of water are lost to evaporation, while other streams are recycled to processes like causticizing and pulp washing. Overall fresh water consumption is calculated to be around 950 cubic meters per hour after accounting for internal recycling and various water losses.

Uploaded by

Srinivasa Rao Venkumahanthi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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New CT Fresh

water to
hot water
460 tank
Total Fresh Water IN Fresh Water From LK From PH FRESH WATER Water in WWL EVAPORATOR FRESH WATER

697 445 42 10 125 71 10 SEC-COND 65

1080 85

Water in WBL

123 Water in Water in Water in GL Water in


EVAPORATOR RECOVERY BOILER CAUSTICIZING LIME KILN
SBL GL 71 MUD

12 5

70 3 30 5 425 5 85 12 2 123 58 1 1 1
MECH-
MECH-
WATER IN SEAL
2 SEAL
WL ROLLER'S
MAIN STACK COOLING 5
NCG VAPOURS
TO HOTWELL& MECH- SEC-COND TO GRITS & STACK
EJECTOR SEAL CAUSTICIZING PUMP'S TO NCT DREGS 22
HOT
COOLER WATER GLAND THROUGH
WATER
EVAPORATION
SEC-COND
SA,ID,
MAKE UP 40
AT OLD &NEW SPOUT
Cooling Tower DRAIN COOLING VACUUM PP
1
SEAL AND
WARM CONDENSOR
WATER WARM WATER FOR
71 SHELL
PULP MILL WATER WASHER
445 1080 425 WWL TO SRB
BOILING/WASH
MODE
TO NEW
COOLING
TOWER

8.4

1092 85 137 70
1080 1080 208 208 166 132 5 70 70

Internal water circulation Losses

TOTAL FRESH WATER CONSUMPTION IN RECOVERY 957 Seco.condesate to causticizing 85 NCG vapours & Ejector 50 Grits & dregs 1

WATER COMING IN WBL 123 Warm water to P.mill 425 Mech-seal-EVAP 3 Hot water flow

WATER COMING FROM POWER HOUSE 10 Vacuum seal water to chipper 35 CT Evaporaion 30 Mech-seal-Caust 1

LK cooling water LB+Rollers 42 Water in WL 58 Sec.Cond Drain 5 Shell washer 1

TOTAL 1132 Total 603 Total 88 LK stack 5

SRB Stack 12 0

705 SRB Mech-seal 2

Total 14
125 M3/Hr.
330 M3/Hr

OLD COOLING TOWER

NCT

OCT
EJECTORS

TO PULP MILL

WATER BOILING
SODA RECOVERY PLANT WATER BALANCE
DETAILS
INPUT FRESH WATER DETAILS M3/Hr
FRESH WATER LINE 150mm AND GOING
TO NEW COOLING TOWER AFTER
1 USING FOR ID FAN, SA FAN 125
OILCOOLERS, SPOUT COOLING AND
RECOVERY PUMPS COOLING
2 CAUSICIZING 65
FRESH WATER MAKEUP AT OLD
3 445
COOLING TOWER (320+125)
FRESH WATER MAKEUP AT NEW
4 75
COOLING TOWER
TOTAL 710
CONSUMPTION DETAILS M3/Hr
1 WARM WATER GOING TO PULP MILL 600
2 CT DRIFT LOSSES 30
3 HOTWELL DRAIN 70
4 MECH.SEAL WATER(2+2+1) 5
5 WARM WATER FOR WATER BOILING 5
TOTAL 710

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