CPAM is a linear polymer compound. Because it has a variety of active groups, it can affinity with many substances and adsorb to form hydrogen bonds. It is mainly a colloidal negatively charged colloid with functions such as turbidity removal, decolorization, adsorption and adhesion. It is suitable for organic colloidal content in dyeing, paper making, food, construction, metallurgy, mineralprocessing, coal powder, oil field, aquatic product processing and fermentation. High wastewater treatment, especially suitable for dewatering of municipal sewage, municipal sludge, paper sludge and other industrial sludge.