1. Used in sewage treatment as a coagulant, has good decolorization ability, and also has the functions of removing heavy metal ions, degreasing, dephosphorization, sterilization, etc., especially for decolorization of printing and dyeing wastewater and COD, and ferrite in electroplating wastewater Co-precipitation and other effects are obvious.
2. As a precipitant, it can form precipitates with sulfides, phosphates, etc. to remove sulfides, phosphates, etc.
3. Aluminum sulfate is easily soluble in water, and the aqueous solution of aluminum sulfate is slightly acidic. It is widely used as the purification treatment of drinking water and industrial water. It is suitable for the treatment of wastewater with lower alkalinity; as a precipitant, it can remove sulfide ions, phosphate ions, etc.
Used as a precipitant for rosin gum, wax emulsion and other rubber materials in the paper industry, as a flocculant in water treatment, and as an internal retention agent for foam fire extinguishers, raw materials for the production of alum and aluminum white, petroleum decolorization, deodorant, and certain drugs Raw materials and so on. It can also produce artificial gems and high-grade ammonium alum. Products with arsenic content not greater than 5mg/kg can be used as flocculants for water treatment.