uses of china drinking water grade high purity poly aluminium chloride

uses of china drinking water grade high purity poly aluminium chloride
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  • What is high-purity poly-aluminum chloride (PACL)?
  • Poly-aluminum chloride (PACl) is one of the common coagulants for water and wastewater treatment. A new Chinese national standard of PACl has been implemented, where the concentration of insoluble substances, iron and heavy metals is to be controlled strictly, then researches on the preparation of high-purity PACl are needed.
  • Why is polyaluminum chloride a good coagulant for water treatment?
  • Polyaluminum chloride (PAC) is highly effective coagulant for water treatment over conventional coagulants because of low dosage requirement, shorter flocculation time, smaller amount of sludge, high efficiency and low aluminum residual in treated water .
  • Why are aluminium based polymers used in water treatment?
  • These shortfalls in the use of alum have led to the synthesis of improved, aluminium-based polymers, which have been used extensively, over the few last decades, for treating water due to their high efficiency at lower dosages, and wider pH and temperature application ranges ( Sahu & Chaudhari 2013 ).
  • Does low concentration of aluminum chloride favored the formation of lb species?
  • Low concentration of aluminum chloride favored to the formation of Αlb species of PΑC. The flocculation tendency of PAC was very high in water. The performance of PAC was dependent on pH. The synthesized PΑC was efficient coagulant for water treatment.