It is mainly used for domestic water, purification of industrial water supply and treatment of industrial waste water. It is also widely used in papermaking, printing and dyeing, precision casting, sugar making, medicine, leather making, petrochemical industry and other industries. For example: urban water supply and drainage purification: river water, reservoir water, groundwater, industrial water supply purification, urban sewage treatment, recovery of useful substances in industrial wastewater and waste residue, promote the settlement of coal powder in coal washing wastewater, starch recovery in the starch manufacturing industry, various industrial wastewater treatment: Printing and dyeing wastewater, leather wastewater, containing fluorine wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing waste water, mine waste water, brewery wastewater, metallurgical wastewater, meat processing waste water, sewage, paper glue, liquid sugar refining, casting molding, cloth anti-wrinkle, catalyst carrier, medicine, refined, quick-setting cement, cosmetic product raw material.