making process of high purity poly aluminium chloride 30 drinking water grade in europe

making process of high purity poly aluminium chloride 30 drinking water grade in europe
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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.
  • Does high-purity PACL remove turbidity?
  • Samples taken from the Huangpu River were used to evaluate the coagulation performance of high-purity PACl in comparison with conventional PACl. The results demonstrate that for the whole dose range studied, high-purity PACls removed more turbidity than conventional PACl.
  • 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 [ 6 ].
  • Which bauxite is used to prepare high-purity PACL?
  • The sample A exhibited the highest aluminum content (13.7%) and the highest basicity (92.9%). Therefore, the bauxite 1 from He-Nan province which was used to prepare sample A is to be used as the raw material to prepare high-purity PACl.