Anionic polyacrylamide (APAM) is a kind of water-soluble polymer. It is mainly used for the flocculation, 

sedimentation and clarification of industrial wastewater in various industries such as the steelworks, electroplate  

factories, metallurgy, coal washing, sludge, and so on. Also, it can be used for the drinking water purification 

and clarification purposes.

Anionic polyacrylamide allows particles to be aggregated by absorbing the suspended solids in water, because 

its molecular chain contains a certain amount of polar group. It can speed up the sedimentation of particles in 

suspended liquid. In addition, this kind of water treatment chemical can obviously accelerate the clarification of 

solution, and also facilitate filtration.