Near-zero sewage corrosion and scale inhibitor is a kind of water treatment agent specially used for sewage reuse circulating cooling water. In near-zero discharge systems, scaling and corrosion are serious problems due to the concentration of water and the accumulation of salts and other impurities. Zero Blowdown Corrosion and Scale Inhibitors combine the functions of corrosion inhibitors and scale inhibitors to prevent corrosion and fouling of metal equipment in water systems, ensuring long-lasting and stable operation of circulating cooling water systems while achieving near-zero emissions.
Corrosion inhibitors can slow down or stop the corrosion process of metals in corrosive media, and reduce the contact between metals and corrosive gases, ions and other substances in water by forming a protective film on the surface of metals, thereby prolonging the service life of metal equipment. Antiscalants can prevent the formation of hard scale on the surface of the equipment by calcium, magnesium and other scaling substances in the water, and keep the water system clean and stable.
Near-zero blowdown corrosion and scale inhibitors are usually composed of organic phosphine, excellent copolymers and copper corrosion inhibitors, etc., and have excellent corrosion inhibition properties for a variety of metal materials such as carbon steel, copper and copper alloys. At the same time, it can also play an excellent anti-scale dispersion effect on scaling substances such as calcium carbonate and calcium phosphate. This agent is mainly used in open circulating cooling water treatment systems, especially for high pH, high alkalinity, high hardness water quality conditions.
The use of near-zero blowdown corrosion and scale inhibitors can help water companies achieve their near-zero discharge goals, while protecting metal equipment from corrosion and fouling, improving equipment life and system stability. However, the specific usage method and dosage need to be selected and adjusted according to the actual situation of the system and the characteristics of water quality to ensure the best treatment effect.