Mechanism and Application of Circulating Water Treatment Chemicals

Circulating water treatment chemicals PBTCA are chemicals used to treat industrial circulating water systems, and their main role is to prevent and control problems such as scale, corrosion, and microbial growth in the circulating water system. The following are the mechanisms of action and applications of common circulating water treatment agents:

Scale inhibitor: Scale inhibitors mainly inhibit the formation of scale by forming complexes or stable colloids with hardness components in water, such as calcium and magnesium ions. They can prevent the precipitation of hardness components, maintain the thermal conductivity of the circulating water system, and reduce the risk of equipment blockage. Scale inhibitors are suitable for circulating water systems such as heat exchangers, cooling towers, and boilers.

Corrosion inhibitor: Corrosion inhibitor reduces metal corrosion by adsorbing onto the metal surface, forming a protective layer. They can form stable complexes or oxides with metals to prevent oxidation and corrosion of the metal surface. Corrosion inhibitors are suitable for metal pipelines, equipment, and cooling water circuits in circulating water systems.

Fungicides/Bioagents: Fungicides are used to inhibit and control the growth of microorganisms in circulating water systems, preventing problems such as biological pollution, corrosion, and blockage. Common fungicides include chloride, ozone, etc. Bioagents are chemicals that add active bacterial agents or enzymes, which can decompose organic matter and control microbial reproduction. These agents are suitable for circulating water systems such as cooling towers, cooling water circuits, and boilers.

PH regulator: pH regulator is used to control the acid-base balance of circulating water and maintain suitable water quality conditions. According to specific needs, alkaline agents (such as sodium hydroxide) or acidic agents (such as nitric acid) can be used to adjust the pH value of the circulating water.

Dispersant: Dispersants disperse or dissolve suspended particles or colloids in water by adsorbing them, preventing sedimentation and aggregation. Dispersants are suitable for suspended particles, organic substances, oils, etc. in circulating water systems.

The specific application of circulating water treatment chemicals should be selected based on different circulating water systems and water quality characteristics. When using these drugs, they should be used in accordance with operating procedures, comply with relevant regulations and environmental requirements, and regularly monitor and adjust the dosage of drugs.