Cooling Water Treatment

Cooling water treatment is the process of treating water that is used to cool equipment, such as power plants, HVAC systems, and industrial machinery. The goal of cooling water treatment is to maintain the quality of the water in order to prevent corrosion, scaling, and biological growth in the cooling system.

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The cooling water treatment process typically includes the following steps:

  1. Pretreatment: This step involves removing impurities such as sediment, debris, and dissolved gases from the water before it enters the cooling system. This is usually accomplished through the use of filters, screens, and chemical treatment.

  2. Corrosion Control: This step involves adding chemicals to the water to control the corrosion of the metal surfaces in the cooling system. Common corrosion inhibitors include phosphates, silicates, and zinc compounds.

  3. Scale control: Scale can form on the surfaces of the cooling system due to the precipitation of dissolved minerals in the water. Scale control is achieved by adding chemicals that inhibit the precipitation of these minerals, such as phosphonates, polymers, and citrates.

  4. Microbial control: Microorganisms can grow in the cooling system, which can lead to fouling, corrosion, and heat transfer problems. Microbial control is achieved by adding biocides, such as chlorine, to the water to kill these microorganisms.

  5. Monitoring: Regular monitoring of the water quality and chemical treatment levels is important to ensure that the cooling system is operating efficiently and effectively.

  6. Discharge: The treated water is discharged from the cooling system into the environment. And the discharge water should follow the environmental regulations.

It is important to note that the specific treatment processes and chemicals used will depend on the type of cooling system and the water source. A qualified water treatment specialist should be consulted to determine the appropriate treatment program for a specific cooling system.

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Neo Nir Engineering


A team of water treatment experts and our 20+ years of experience enable us to cater to our customer’s needs & Satisfaction. Our high-performance product range working in synergy with our solution-oriented onsite and offsite team help us deliver excellent results.

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