Nowadays, polyaluminum chloride has developed into a mature flocculant with large market sales, and has the trend of gradually replacing the traditional flocculant. Western European countries began to produce polyaluminium chloride in 1976, used as industrial sewage treatment flocculant; The United States and Canada approved it for urban water supply and industrial sewage treatment in 1983. Polyaluminum chloride is a commonly used coagulant in water treatment, which has remar...