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