Cationic polyacrylamide usually has a lower molecular weight than anionic or non-ionic polymers and its clarification performance is mainly obtained through charge neutralization. The function of this kind of flocculant is mainly flocculating colloid with negative charge, with turbidity removal, decolorization and other functions, suitable for high content of organic colloid wastewater, such as dyeing, paper making, pulp, food, aquatic products processing and fermentation of ...