... industrial wastewater treatment.(2) In the paper industry can be used as dry strength agents, retention agent, filter aid.( ... .(4) It Can be used for dyeing wastewater, leather wastewater, oily wastewater treatment, so that turbidity removal, decolorization, to ... , oil additives , sludge dewatering , meat food processing wastewater . Sugar plant wastewater treatment and so on3 . The high degree of ion ( ...