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RESERVOIR
65000 x 2CLARIFIER
CHLORINE ALUMLIME
BLOWDOWN
GRAVITY
FILTERMUWP RWP
PROCESS FLOW CHART-JHANOR
FILTER
WATERSUMP
DMPLANT
CT
MAKE UPCLARIFIED WATER TANK
DRINKING
WATER
SOFTENING
PLANT
PRESSURE FILTER
HVAC System Steam generationGT Injectio
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JHANOR-GANDHAR
WATER CONSERVATION MEASURES
ZERO-DISCHARGE OF:
TREATED SEWAGE FROM PLANT &
TOWNSHIP.
GRAVITY & PRESSURE FILTER BACKWASH
EFFLUENTS.
CLARIFIER BLOW-DOWN EFFLUENT.
BOILER BLOW DOWN WATER
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JHANOR-GANDHAR
Gr.Filter BW
WHRB Blow
Down
STP
Township
PlantGardening/
drain
Sludge
Sludge Pit
Clarifier
under flow
Pr. Filter BW
SupernatantSump Drain
ETP
CT Basin
WATER CONSERVATION MEASURES
DAILY SAVINGS
OF 300-500M3
OFFRESH WATER
Clarifiedwater
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Water Consumption Reduction measures
Re-use of treated sewage water for
horticulture purpose:
The treated sewage from STP is utilised for
horticulture purpose & thus reducing therequirement of fresh water.
Operating CW system at higher COC:
Earlier the project operated the CW system as
per the design COC of 4.0 To reduce the water
consumption, the project is now operating the
CW system with higher COC of about 4.3 4.5.
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JHANOR-GANDHAR
WATER CONSERVATION MEASURES
SAVINGS :
Pumping of fresh water and effluent.
Around 720 M3/day of make up water.
Reduction of effluent by 720 M3/day.
OPTIMIZING COC OF CW SYSTEM FROM 4.0 TO 4.5 :
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MAKE-UP VS COC
A. Increasing the ability of
CW system to hold higher
concentrations of TDS
will increase the COC,and will decrease the CW
Blow down.
B. Cooling tower water
treatment provided by
newer high-bonding
strength ploymers will
achieve higher COC.
RJPC (WR-1)- 2012
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N-Pit Pumps Priming
Fume absorbers-
HCl Tanks
Gardening
Continuous
Flushing in
toilets
Over Flow
Daily Monitoring
JHANOR-GANDHAR
POTABLE WATER CONSERVATION MEASURES
DRASTIC REDUCTION IN POTABLE WATER THROUGH:
PotableWater
Use
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JHANOR-GANDHAR
Potable water consumption during last 4 years
2007-08 2008-09 2009-10 2010-11
Total Potable water 230.34 225.74 211.74 215.29
Townshp_total 186.98 186.53 180.75 182.91
Plant_total 43.36 39.21 30.99 32.38
0.0025.00
50.00
75.00
100.00
125.00
150.00
175.00
200.00
225.00
250.00
275.00
300.00
CONSUMPTION(1000M3)
JGGPP POTABLE WATER CONSUMPTION
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JHANOR-GANDHAR
Potable water consumption during last 4 years
2.12
2.14
2.16
2.18
2.2
2.22
2.24
2.26
2.28
2.3
2.32
2007-08 2008-09 2009-10 2010-11
WaterC
onsumption(lacsM3)
Potable water Consumption
2007-08
2008-09
2009-10
2010-11
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JHANOR-GANDHAR
WATER CONSERVATION MEASURES
RINSE WATER RECYCLING- FY 06-07
Separation of rinse water effluent (which is
comparable to raw water) from regenerationeffluent.
Collection of rinse & back wash water
from stream and ACF to Rinse pit. Pumping back to clarifier.
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REGN. O/LRINSE OUTLETSERVICE O/LB/W O/LB/W I/LSERVICE I/L
TO N.PIT
SBA MB
TO STORM
WATERDRAIN
ACF SAC
RAIN WATER FROM DMPROOF
OLD SCHEME FOR DM PLANT
DM
TANK
MODIFIED SCHEME FOR DM PLANT
NEW RINSE
PITTO DM CLARIFIER
TO STORM
WATERDRAIN
ACF SAC
RAIN WATER
FROM DMP ROOF
DM
TANK
TO
N.PIT
SBA MB
NEW HDPE LINE
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SCOPE FOR FURTHER WATER CONSERVATION
Pilot Study for Effluent recycling
A pilot study to know the
feasibility of effluent recycling
was carried out at the station with
CW blow down water.
The CW blow down, approx. 150-
200 M3/hr, which constitutes
about 90% of the plant liquid
effluent was treated with a skid
mounted combined Microfiltration and Reverse Osmosis
unit.
Pilot Study Model
RO SYSTEM
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SCOPE FOR FURTHER WATER CONSERVATION
PROPOSED RO SYSTEM
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JHANOR-GANDHAR
Raw water consumption vs Raw water Intake from river
Raw water
Intake from
river
Raw water
drawl from
Reservoir
Difference in
water drawl
Genera
tion
(MU)
Spec.Raw
water
Consump
tion
(Lit/U)
2008-09 79,62,500 69,62,460 10,00,040 4,150 1.92
2009-10 85,91,484 72,77,257 13,14,227 4,488 1.91
2010-11 77,58,185 65,85,995 11,72,190 4,058 1.91
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SCOPE FOR FURTHER WATER CONSERVATION
WATER BALANCE STUDY DONE
Period Water Level Total waterLoss
Evaporationloss
Un-accountable
loss
(Percolation/
seepage Loss)
FY- Oct 10 3.45 mtr 120 m3/hr 15 m3/hr 105 m3/hr
FY- Jan 10 3.8 mtr 155 m3/hr 15 m3/hr 140 m3/hr
FY-07 3.5 mtr 165 m3/hr 15 m3/hr 150 m3/hr
Reservoir level is being maintained between
2.3 m to 2.8 m to minimize the loss
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SCOPE FOR FURTHER WATER CONSERVATION
WATER BALANCE STUDY DONE
UNACCOUNTED LOSS-120 M3
ESTIMATED EVAPORATION LOSS: 15-20 M3
WHAT ABOUT
100 M3
?
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NET ANNUAL WATER SAVINGs
Present Practices
Zero Effluent Discharge-
1,09,500 m3
Optimizing COC-1,92,720m3
Recycling of Rinse water-
23000 m3
Total water savings=3,25,220 M3/Annum
Potential savings
Eflluent (CW Blowdown)
Recycling by RO-13,14,000
Unaccounted Loss@100m3/hr=8,76,000
Total Potential savings=
21,90,000M3/Annum
RJPC (WR-1)- 2012
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JHANOR-GANDHAR
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RAIN WATER HARVESTING
CAN BE OF TWO TYPES:
Collection and use
Recharging to underground aquifers.
FORMULA FOR RAIN WATER COLLECTIONQUANTITY:
Q = A x C x rain fallQ is in M3
A, the area is in M2, Rain fall is in meters and C is the run-
off coefficient.
JHANOR-GANDHAR
WATER CONSERVATION MEASURES INITIATIVES
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HOW MUCH WATER?
Parameter Value
Total AreaMain Plant, sq.m 14,40,400
Collection area, % 90
Avg. Rain Fall, mm 650
Run off coeff., % 60
Run off Water Qty. M3 5,05,440
Rain fall during Jun- Sep, mm 550
Run off during Jun-Sep, M3 4,20,000
JHANOR-GANDHAR
RAIN WATER HARVESTING INITIATIVES
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From Main plant, around 2.7 lacs M3 ofwater can be collected with:
A 3.0 m height check dam storing
12500 M
3
of water in drain. A pit to collect and pump to reservoir
@ 300M3/hr.
Separate collection of better qualityroof water is being considered.
JHANOR-GANDHAR
RAIN WATER HARVESTING INITIATIVES
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THE DRAIN SYSTEM IN MAIN PLANT:
D1 D2 D3 D4 D5
2.95 m
2.55 m
1.60 m 1.00 m 0.60 m
(L = 725m) (L = 1550m) (L = 3120m) (L
=3120m)
(L =
3120m)
JHANOR-GANDHAR
RAIN WATER HARVESTING INITIATIVES
Sufficient for 15
days requirement
at full
load,amounting to
Rs.16,20,000/-
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JHANOR-GANDHAR
RAIN WATER HARVESTING INITIATIVES
Ground water recharging is being
considered.
Average yearly rain fall of 650 mm.
Area = 50 acre = 2,20,000 sq.M
Around 75,000 M3 of rain water can be used
for aquifer recharging annually.
This qnty. is more than 6 months
consumption of potable water in the colony.
For Township
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RAIN WATER HARVESTING INITIATIVES
For Township
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WATER BALANCE (M3/DAY)
RAW WATER- 26500
CLARIFIED WATER- 26500
FILTER WATER
5400
SOFT WATER-
100
CT MAKEUP
21000
DRINKINGWATER
700
DM PLANT
4500
MISC. US
200
EVAP.
16800
BLOWDOWN
4200
STEAM CYCLE
400
GT INJECTION
3600
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CONDENSER AUXILLIARYCOOLING
2000M3/HR
Cl2 dosing
Servicewatersystem
Fire Fighting
Blow down
240M3/HR
H2SO4 dosingSide filters
CT
720m3/hr
40000m3/hr
2000m3/hr
MAKEUP
960M3/HR
TREATMENT
CHEMICAL
DOSING
CW SCHEMATIC AT JHANOR