WATER AND WASTEWATER DIVISION                     FOR COOLING TOWERS

The big picture of cooling tower water treatment chemicals is the control of scale, corrosion, microbiological activity, and foaming. Scale can lead to heat exchanger inefficiency, plugged tubes, inadequate flow, and under-deposit corrosion. Corrosion can reduce the operating life of cooling equipment and increase maintenance costs. Microbiological activity can lead to reduced heat exchanger efficiency, plugged tubes, inadequate flow through the cooling tower fill, under-deposit corrosion, etc.

Typical cooling tower treatment chemicals are listed below.

Corrosion Inhibitors: to protect metal surfaces from corrosion.

  • Phosphates (orthophosphate, sodium tripolyphosphate, sodium hexametaphosphate, TKPP)
  • Phosphonates (HPA and others)
  • Zinc
  • Silicates
  • TT (Tolyltriazole – for yellow metals)
  • BZT (Benzotriazole – for yellow metals)
  • Molybdate

Scale Inhibitors: to protect heat transfer surfaces and cooling system from scale.

  •  Phosphates (sodium tripolyphosphate, sodium hexametaphosphate, TKPP)
  •  Phosphonates (HEDP, AMP, PBTC)
  •  Polymers (polycarboxylates, polyacrylates, polymaleic acid, maleic anhydride copolymer, acrylate/AMPS copolymer, acrylate/AMPS/sulfonated styrene terpolymer, acrylate/sulfonic acid/nonionic terpolymer) – many are dispersants too.

Antifoams: surface-active chemicals that reduce foaming.

  • Silicone and non-silicone blends

Biocides: for microbiological control.

  • Oxidizing biocides (bleach, bromine, chlorine gas, BCDMH, calcium hypochlorite, chlorine dioxide, hydrogen peroxide, iodine, ozone) or our patented BIOXY S
  •  Nonoxidizing biocides (isothiazolin, gluteraldehyde, DBNPA, MBT) or our unique POLY QUAT

PRODUCTS FOR COOLING TOWERS:

COOL T KLIN