CONTACT DETAILS
KASHVI CHEMICALS AND SERVICES
PL.NO.12 KAPILA HSG.SOC.
NEAR RAMLILA GROUND
N-7 CIDCO AURANGABAD
Cell: 08888868765
Mail Id:vijayjaiswal@kashvichemicals.com
Website:www.kashvichemicals.com
WATER TREATMENT
CHEMICALS
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COOLING TOWER CHEMICALS
REVERSE OSMOSIS CHEMICALS
CHILLER CHEMICALS
RO CLEANER
BOILER CHEMICALS
INDUSTRIAL CHEMICALS
WATER TREATMENT PLANTS
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INDUSTRIAL RO PLANT
DM PLANT
SOFTENING PLANT
MIXBED PLANT
RESINS
RO MEMBRANE
DOSING PUMP
REPAIR AND MAINTENANCE OF
PLANTS
COOLING TOWERS
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INDUSTRIAL COOLING TOWERS
NATURAL GRAFT COOLING TOWERS
INDUCED DRAFT COOLING TOWERS
FORCED DRAFT COOLING TOWER
COOLING TOWER FILLS
SPRINKLER ASSEMBLY
SPARES AND ACCESORIES
Details of Water-Cooling
System
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Cooling towers and Reservoirs
Direct cooling to Dies
Indirect cooling to oil through Heat
Exchangers
• Pre-treatment of Water through Water
Softener
• No Blowdown facility from bottom of water
reservoirs
WHY DO COOLING
WATER PROBLEM
EXIST ?

If cooling water left untreated , cooling water
system provide an environment where the
four main cooling problems will exist:
• CORROSION
• SCALE
• FOULING
• MICRO BIOLOGICAL CONTAMINATION
WHAT TYPE OF WATER CHARACTERISTICS AFFECT
CORROSION

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Oxygen and other dissolved gases
Dissolved or suspended solids
Alkalinity or acidity
Velocity
Temperature
Microbial activity
WHAT ARE THE EFFECTS OF THOSE PROBLEMS ?

• Increased maintenance cost
• Reduced heat transfer efficiency and
therefore greater energy losses
• Possible production cutbacks or
shutdowns
• Direct loss or abandon of plant &
machineries
Methods of Prevention and Control of
Scale

• Removal of scale forming minerals by pre-

treatment of makeup water.
• Limiting the concentration of scale forming
minerals by bleed control.
• Replacing scale-forming minerals with
soluble salts by acid dosing.
• Controlling the scale forming process
using scale-inhibiting chemicals.
Corrosion Control Concepts
The rate of attack by circulating cooling water on
steel is a function of temperature and pH. It
increases with temperature and depression of
pH.
Corrosion protection follows two rules:
High pH promotes scale and inhibits
corrosion
Low pH inhibits scale and promotes
corrosion
PROBLEMS CAUSED BY
MICROORGANISMS

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HEAT TRANSFER EFFECTS
FLUID FLOW EFFECTS
CORROSION EFFECT
Parameters to Assess Water
Quality
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pH
TDS
Total Hardness
Calcium Hardness
Total Alkalinity
LSI
RSI
Kashvi chem

Kashvi chem

  • 2.
    CONTACT DETAILS KASHVI CHEMICALSAND SERVICES PL.NO.12 KAPILA HSG.SOC. NEAR RAMLILA GROUND N-7 CIDCO AURANGABAD Cell: 08888868765 Mail Id:vijayjaiswal@kashvichemicals.com Website:www.kashvichemicals.com
  • 3.
    WATER TREATMENT CHEMICALS • • • • • • COOLING TOWERCHEMICALS REVERSE OSMOSIS CHEMICALS CHILLER CHEMICALS RO CLEANER BOILER CHEMICALS INDUSTRIAL CHEMICALS
  • 4.
    WATER TREATMENT PLANTS • • • • • • • • INDUSTRIALRO PLANT DM PLANT SOFTENING PLANT MIXBED PLANT RESINS RO MEMBRANE DOSING PUMP REPAIR AND MAINTENANCE OF PLANTS
  • 5.
    COOLING TOWERS • • • • • • • INDUSTRIAL COOLINGTOWERS NATURAL GRAFT COOLING TOWERS INDUCED DRAFT COOLING TOWERS FORCED DRAFT COOLING TOWER COOLING TOWER FILLS SPRINKLER ASSEMBLY SPARES AND ACCESORIES
  • 6.
    Details of Water-Cooling System • • • Coolingtowers and Reservoirs Direct cooling to Dies Indirect cooling to oil through Heat Exchangers • Pre-treatment of Water through Water Softener • No Blowdown facility from bottom of water reservoirs
  • 7.
    WHY DO COOLING WATERPROBLEM EXIST ? If cooling water left untreated , cooling water system provide an environment where the four main cooling problems will exist: • CORROSION • SCALE • FOULING • MICRO BIOLOGICAL CONTAMINATION
  • 8.
    WHAT TYPE OFWATER CHARACTERISTICS AFFECT CORROSION • • • • • • Oxygen and other dissolved gases Dissolved or suspended solids Alkalinity or acidity Velocity Temperature Microbial activity
  • 9.
    WHAT ARE THEEFFECTS OF THOSE PROBLEMS ? • Increased maintenance cost • Reduced heat transfer efficiency and therefore greater energy losses • Possible production cutbacks or shutdowns • Direct loss or abandon of plant & machineries
  • 10.
    Methods of Preventionand Control of Scale • Removal of scale forming minerals by pre- treatment of makeup water. • Limiting the concentration of scale forming minerals by bleed control. • Replacing scale-forming minerals with soluble salts by acid dosing. • Controlling the scale forming process using scale-inhibiting chemicals.
  • 11.
    Corrosion Control Concepts Therate of attack by circulating cooling water on steel is a function of temperature and pH. It increases with temperature and depression of pH. Corrosion protection follows two rules: High pH promotes scale and inhibits corrosion Low pH inhibits scale and promotes corrosion
  • 12.
    PROBLEMS CAUSED BY MICROORGANISMS • • • HEATTRANSFER EFFECTS FLUID FLOW EFFECTS CORROSION EFFECT
  • 13.
    Parameters to AssessWater Quality • • • • • • • pH TDS Total Hardness Calcium Hardness Total Alkalinity LSI RSI