Based on aluminium sulphate,ferric sulphate and silicic acid,polysilicate aluminium ferric (PSAF) being used as a flocculant has been synthesized.

• 以硫酸铝、硫酸铁、水玻璃为主要原料,制备了聚合硅酸铝铁(PSAF)絮凝剂。