What is polyaluminium chloride used for?

Polyaluminium chloride is used as a primary coagulant in the treatment of drinking water. It is effective over a range of pH values. It is particularly effective on some waters and usually requires a lower dose than alum.

Is polyaluminium chloride a safe coagulant?

Polyaluminium Chloride is a safer alternative to several other chemical coagulants. For instance, aluminium sulphate has been widely used as coagulant for many years. It removes contaminates and general turbidity from water during the water treatment process.

When did polyaluminum chloride become a drinking water treatment chemical?

Polyaluminum chloride was endorsed by the NHMRC for use as a drinking water treatment chemical in 1979. The revision undertaken in 2003 did not change the status of this chemical for the treatment of drinking water. ANSI (American National Standards Institute)/AWWA (American Water and Wastewater Association) Standard no B408-98.

Does polyaluminum chloride affect drinking water quality?

Residual chloride will be present, but at low levels that do not adversely affect drinking water quality. Polyaluminum chloride was endorsed by the NHMRC for use as a drinking water treatment chemical in 1979. The revision undertaken in 2003 did not change the status of this chemical for the treatment of drinking water.

How does poly Aluminium chloride improve water quality?

Poly Aluminium Chloride achieves this by generating hydroxyl ions and polyvalent anionic polymers, which facilitate the coagulation and flocculation of suspended particles to improve water quality. Coagulation: Poly Aluminium Chloride’s initial role in wastewater treatment is coagulation.

How effective is polyaluminium chloride?

It is effective over a range of pH values. It is particularly effective on some waters and usually requires a lower dose than alum. Polyaluminium chloride (PACl), ext {Al}_ {2}ext { (OH)}_ {3}ext {Cl}_ {3} Al2(OH)3Cl3, is also known as aluminium hydroxy chloride or basic aluminium chloride.