Polyacrylamide is used as a flocculant, and its function is to shrink the corresponding double layer of the colloidal particles, squeeze the sediment, force the colloidal particles to reach a stable state, and finally achieve the purpose of concentrated settlement.

Ferrous sulfate is used for flocculation and purification of water, and removal of phosphate in urban and industrial sewage to prevent eutrophication of water bodies, and can also be used as a reducing agent to reduce chromate in cement.

Ferric chloride is an important water treatment chemical, which produces a variety of hydrolyzed products after reacting with hydroxide alkalinity in water. It is an efficient and cheap flocculant for urban sewage and industrial wastewater treatment. It has significant precipitation of heavy metals and sulfide. Decolorization, deodorization, oil removal, sterilization, phosphorus removal, reduction of effluent COD and BOD, etc.

Polyaluminum chloride can adsorb particulate matter in water, used for flocculation and sedimentation in sewage treatment, and can also be used as a filter aid.

Sodium hypochlorite is an inorganic compound, which is mainly used in many fields such as bleaching, industrial wastewater treatment, papermaking, textiles, pharmaceuticals, fine chemicals, sanitation and disinfection.

also known as caustic soda, caustic soda, and caustic soda, is an inorganic compound. Sodium hydroxide is strongly alkaline and highly corrosive. It can be used as an acid neutralizer, complex masking agent, precipitant, precipitation masking agent, Color developer, saponification agent, peeling agent, detergent, etc., are widely used.