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7/27/2019 Water -Process Flow
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Water - An important resource
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ContentsProject leads/Enquiry- Water Treatment PlantWater parameters & their Effects
Industrial Water Process Flow Diagram
Cost comparison
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Project leads/Enquiry Source of water Water Analysis Report Water Consumption break up End quality ( for all different units) Client Decision Procedure /Client analysis
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Water Parameters & their effectsWater Impurities & their effects
Sl.No Water parameter Chemical Formula Difficulties/ Caused Means of treatment
1 Turbidity Nothing Specific
imparts unsightlyappearance towater,deposits onwater lines & processequipment
Coagulation, settling &Filtration
2 Hardness Salts of Ca & Mg,expressed in CaCO3
Cause scale in Heat
Exchanger,boilers,pipelines
Softening,Demineraliation,intern
al bioiler treatment &surface active agents
3 AlkalinityHCO3,CO3,OHexpressed as CaCO3
embrittlement forboiler line, source of corrosion
Lime & lime Sodasoftening,DM,Dealkalizer by anion exchange
4Free Mineral Acid(FMA)
H2SO4,HCLetcexpressed as CaCO3 Corrosion
Neutralization withalkalies
5 Carbon Dioxide CO2
Corrosion in waterlines & Condensatelines
Areation,Deareation &neutralization withalkalies
6 pH pH=log1/{H-}
7 Sulphate SO4adds to solid contentof water,
DM,RO,EDI,Evaporations
8 Chloride ClAdd to solid content &corrosive character
DM,RO,EDI,Evaporations
9 Nitrate NO3 add to solid contentDM,RO,EDI,Evaporations
10 Fluoride F cause dental problem adsorption, alum -coagulation
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Sl.No Water parameter Chemical Formula Difficulties/ Caused Means of treatment
11 Sodium Na Causes corrosion in boiler DM,RO,EDI,Evaporations
12 Silica Sio2
scale in boiler , coolingtower, deposits onturbine blade DM,RO,EDI,Evaporations
13 iron Fedsicolors, deposits onboiler, water lines
areation , contactfiltration, ion exchange
14 Mangesne & aluminium Mn & Al Same as IronImprovedd clarifier &Filter Operation
15 Oxygen O2
corrosions in water line,heat exchager line,bopiler return line
deareation, sodiumsulphite corrosioninhibitors
16 Hydrogen sulphide H2Sodor- rotten egg,corrosion
areation, Chlorination,Highly basic anion
17 Ammonia NH3
Corrosion of copper &Zinc alloys by formation
of complex compound
Deareation,Cation
exchange, deareation
18 Dissolved solids Scaling , DM,RO,EDI,Evaporations
19 Suspended Solids Deposits on water line coagulation, filtration
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Water application area-Power WATER CONSUMING AREA
INDUSTRIAL PROCESS DOMESTIC
Drinking
Canteen
Wash Room
Cooling Tower
Boiler
AHU
Floor Wash
Coal Wash
Ash Handling
WTP Operation
OTHER
Fire W Garden
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Power
Clarifier
DisinfectionTank
Boiler
Cooling
De-Aerator
Blowdown
Treated Effluent Discharge
CoolingTower
Turbine
AVGF,MGF
Effluent
Cl
Recycling Unit
ETP
CPU
Conde nsate
Recirculation of BFW
DM water Line
SSF
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Steel
Clarifier
DisinfectionTank
Boiler De-Aerator
Blowdown
CoolingTower
AVGF,MGF
Cl
Recycling Unit
ETP
CPU
Conde nsate
Recirculation of Condensate
BlastFurnace
CokeOvenPlant
Hot WireMill
Bar Mill
PipeMill
ColdRollingMill
HotRollingMill
LD &SC
SSFSoftening
Effluent
DM water Line
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Sugar
Clarifier
DisinfectionTank
Boiler De-Aerator
Turbine
AVGF, MGF
Effluent
Cl
Recycling Unit
Clarifier
VacuumPan
Evaporator
Raw Cane Cane Crusher
Baggase
Crystallizer
Centrifuge
Finishing
TankFilter Cake
Sugar Crystals
ETP
Discharge
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Automobile
Clarifier
DisinfectionTank
Polymer
Paintingprocess
CoolingTower
AV GF,MGF
Effluent
Cl
Recycling Unit
Platingprocess
SofteningTank
D.G. set
ETP
Discharge
AVGF,MGFBlow Down
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Commercial ComparisonSl.No Aspects Option-1 Option-2a Scheme X Y
b Capital Cost=Equipment cost+Civilcost
x1+x2 y1+y2
c O&M Cost=raw water cost+wtp
o&m+ ETP load o&m
- -
d Space required - -
e Time required - -
f List of civil work - -
g Labor Cost - -
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Thank You