Polyaluminium chloride(aluminium chlorohydrate) also simply called PAC, is used in deodorants and as a coagulant in water purification
Polyacrylamide(PAM) is a water- soluble high polymer and widely used in petroleum, paper-making, metallurgical, textile and environmental protection.
Polyferric sulfate(PFS) is a polyhydroxy, combination of multi-core, cationic polymeric inorganic flocculant. It can be quickly mixed with water at any ratio