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Is polyaluminium chloride safe for treatment of potable water for public supply

Question asked by Sajan M on Mar 30, 2016
Latest reply on Mar 31, 2016 by James Dulko

Water treatment systems across the Globe are using Polyaluminium Chloride as a floculant in water treatment system, for treatment and supply of potable water. Though there have been many advantages cited over the erstwhile ALUM but is it Safe. What kind of studies have been done to conclude that it is safe.