Water treatment chemicals are primarily applied across four major sectors: industrial water treatment, municipal and drinking water treatment, sewage and wastewater treatment, and seawater desalination.
**Industrial Water Treatment:** Used for circulating cooling water (scale inhibitors, corrosion inhibitors, biocides), boiler water (softeners, oxygen scavengers), and process water (in industries such as petroleum, chemicals, power generation, and metallurgy) to prevent scaling, corrosion, and microbial growth.
**Municipal and Drinking Water Treatment:** Employs flocculants (e.g., PAC, PAM), disinfectants (e.g., sodium hypochlorite, chlorine dioxide), pH regulators, and adsorbents (e.g., activated carbon) to remove suspended solids, pathogens, odors, and heavy metals, thereby ensuring the water meets drinking water standards.
**Sewage and Wastewater Treatment:** Covers both municipal and industrial wastewater; utilizes flocculants/coagulant aids (e.g., polyacrylamide), dewatering agents, demulsifiers (for oily wastewater), decolorizing agents, redox agents (for treating cyanide and chromium residues), and disinfectants to achieve solid-liquid separation, reduce COD/BOD levels, and ensure compliance with discharge standards.
**Seawater Desalination:** Involves the addition of scale inhibitors (e.g., polyphosphates, organic phosphonates), flocculants, and cleaning agents to membrane-based (reverse osmosis) and distillation processes to prevent membrane scaling and fouling, thereby enhancing operational efficiency.
Furthermore, specialized applications - such as oilfield reinjection water (utilizing dedicated purification agents and biocides), reclaimed water reuse, sludge treatment (employing conditioning and dewatering agents), and cooling tower systems - also rely extensively on compounded water treatment chemicals.
