Cationic polyacrylamide and granular cationic polyacrylamide (CPAM) are linear polymer compounds, which can form hydrogen bonds by affinity and adsorption with many substances due to its various active groups. Mainly flocculation negatively charged colloid, except the turbidity, decoloring, adsorption, adhesion, and other functions, suitable for dyeing, papermaking, food, building, metallurgy, mineral processing, coal, oil field, aquatic products processing and fermentation i...