Circulating Water Treatment Chemicals

Circulating Water Treatment Chemicals are used in closed or open water circulation systems to control changes in water chemistry during repeated circulation. As water continuously passes through heat exchangers, cooling equipment, pipelines, tanks, and other components, dissolved minerals and contaminants can become concentrated and influence system conditions.

Scale control chemicals are applied to manage mineral deposits that may form on heat-transfer surfaces and inside circulation lines. Corrosion inhibitors are used to control corrosion reactions involving carbon steel, copper alloys, and other metal components. Dispersants can help keep fine particles suspended in the water and reduce their accumulation on equipment surfaces.

Microbiological control chemicals may be used in circulating water systems where bacteria, algae, or other microorganisms are present. pH adjustment can also be incorporated into the treatment program to maintain water chemistry within a specified operating range.

Chemical selection should be based on water hardness, alkalinity, conductivity, temperature, concentration cycles, system materials, circulation rate, and the type of cooling or industrial process. Treatment programs may combine several chemical functions according to the operating conditions of the water system.

Treatment Functions

• Mineral scale control

• Metal corrosion control

• Suspended particle dispersion

• Microbial growth control

• pH and water chemistry adjustment

• Deposit management

• Circulating water quality control

Applications

• Industrial cooling towers

• Recirculating cooling systems

• Heat exchanger systems

• Process water circulation

• Manufacturing water systems

• Power plant cooling circuits

• Chemical processing facilities

• Metal processing water systems