... . 2)Widely used in waste water treatment: Municipal sludge dewatering, Municipal sludge dewatering, Urban sewage treatment etc; 3)Also used as ... speed centrifuge, belt filter, frame filter, and other special sludge dewatering machine, has formed flocculent mass speed, group and the ... , petrochemical plants, oil, metallurgical, chemical industry and cosmetic sludge dewatering processing. Cationic PHPA