instead alum use poly aluminium chloride coagulant supplier

instead alum use poly aluminium chloride coagulant supplier
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  • What is the difference between Alum and polyaluminium coagulants?
  • For water treatment applications, instead of Alum, now there are several alternative aluminium-based coagulants. Polyaluminium coagulants (PACl) consume considerably less alkalinity than Alum. Compared to Alum, PACl works effectively over a broader pH range (5.0 to 8.0).
  • Which coagulant is better alum or PACL?
  • (b) the direct filtration process, i.e., coagulation‐flocculation and sand filtration, but without the intermediate sedimentation step. PACl proved to be a more efficient coagulant than alum, as lower dosages of PACl, about 1.35 mg Al/L in this case, resulted to the production of treated water with low turbidity and residual aluminium content.
  • What is polyaluminum chloride coagulant?
  • 1. Introduction Polyaluminum chloride (PAC) coagulant has been developed and used in water and wastewater treatment since the 1980s throughout the world (Jiang, 2001). PAC is made by partial hydrolysis of acid aluminum chloride solution using a specific reactor.
  • What is the difference between Alum and poly Aluminium chloride?
  • The cost of poly Aluminium Chloride is roughly twice/thrice that of Alum, which is $0.4/ Kg. Regarding the impact on treated water, the increase in chloride from poly Aluminium Chloride is much lower than the sulphate increase from Alum, resulting in lower overall increases in the TDS of the treated water.