instead alum use poly aluminium chloride coagulant application

instead alum use poly aluminium chloride coagulant application
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  • Are poly-Aluminium chloride and aluminium sulphate effective coagulant agents?
  • The efficiency of poly-aluminium chloride (PACl) and of aluminium sulphate (alum), two commonly applied coagulant agents, was studied comparatively in this work, during full-scale experiments in a drinking water treatment plant.
  • 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).
  • Is polyaluminium chloride better than polyelectrolyte – alum-based coagulation?
  • At the Barekese Water Treatment Plant in Ghana, an alternative, the polyelectrolyte – polyaluminium chloride (PAC) is also used in coagulation but limited information is available on the operating conditions required to achieve better performance than alum-based coagulation.
  • Can polyaluminium chloride improve coagulation process in conventional water treatment?
  • The coagulation process in conventional water treatment could be enhanced and the ensuing water pH decline reduced appreciably by applying the right dosage of polyaluminium chloride and appropriate process conditions of pH, fluid mixing speed matrix and residence time.