design of industrial grade poly aluminium chloride industrial grade

design of industrial grade poly aluminium chloride industrial grade
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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.
  • What are the different types of aluminum chlorohydrate solutions?
  • Solutions range from colorless to amber and from clear to hazy in appearance. A generic manufacturing process for PAC involves the addition of base to aluminum chloride solution. A common process for the manufacture of aluminum chlorohydrate involves the addition of metallic Al to aluminum chloride.
  • Are polyaluminum chloride products FDA approved?
  • Polyaluminum chloride products used in the treatment of potable (drinking) water must be approved by the National Sanitation Foundation (NSF). Aluminum chlorohydrate for topical use as an antiperspirant is regulated by the FDA. (This is an excellent review of the literature on this chemistry.)
  • Does pH affect the performance of polyaluminum chloride (PAC)?
  • The performance of PAC was dependent on pH. The synthesized PΑC was efficient coagulant for water treatment. The present work was aimed to synthesis of polyaluminum chloride (PAC) using calcium oxide as a basification agent and optimization of process parameters on the yield of medium polymer species in PAC.