The zwitterionic polyacrylamide is formed by copolymerization of the cationic monomer,acrylamide monomer and hydrolysis agent. The molecular chain of this product contants both posiive and negatively charged zwitterionic irregular polymers.Product appearance is white fine particles or powdery soild.

It can be used for sludge dewatering agent,especially in the case of more complex or constantly changing water quality,sludge dewatering in oil refineries and chemical plants,and the effect is better. The performance of this product as a water treament flocculant to reduce the surface tension is much greater than ability of the cationic PAM and anionic PAM to exist alone under the same conditions.