The hydrid complex flocculent has been attracted more attention to the researchers and the users

who are seeking the cheap

more safe in ecology and low risk in health

high efficient

and powerful flocculent. Their types

preparation methods

preporties and applications in water treatment have been reviewed

including inorganic/synthesized organic complex flocculent

inorganic/natural polymer complex flocculent and natural polymer graft copolymer. Their mechanisms of flocculation are briefly generalized and analyzed. And some problems and proposals about current inorganic/ organic hydrid complex flocculent are pointed out.