Poly Ferric Chloride plays a crucial role in wastewater reuse Polyferrammonium Ferric Chloride plays a crucial role in wastewater reuse Recycling crisis is exacerbating and the world's total water availability is limited, And with the acceleration of climate change, population growth and urbanization, a large number of sewage are generated and unreasonable discharges lead to a decrease in the self-purification capacity of rivers and fewer and fewer available water resources. At present, there are 2.6 billion people on earth without access to safe drinking water Water resources, speed up the innovation of water treatment technology, reduce the consumption of high-quality water resources, increase waste water treatment and reuse, the development of water recycling is imminent, so the development of polymetallic aluminum ferric chloride great room for development. Polyaluminum chloride is a kind of inorganic polymer coagulant with aluminum salt and ferric salt coagulation and hydrolysis, the advantages of aluminum salt and iron salt in one, can be used for drinking water, domestic sewage, industrial wastewater treatment . Poly aluminum ferric chloride for high turbidity water and low temperature and low turbidity water purification effect is particularly evident, fast dissolution, floc forming fast, without additives or other coagulant aid, less dosage, water treatment effect Well, the equipment, pipeline corrosive, and the water quality. In recent years, PACF has played an increasingly important role in the reuse of industrial wastewater and has become an indispensable part of the water treatment industry. Polymeric ferric sulfate solution is used for sewage treatment in industries such as papermaking, printing and dyeing, metallurgy, mineral processing, leather and the like, effectively improving the utilization efficiency of water resources, saving water resources, easing groundwater exploitation pressure, objectively protecting water resources, Environmental protection water treatment industry to deepen the degree of deepening, PAC Ferrous has a good momentum of development and tremendous room for development.