Alum is best, but experience ...
Published by Zulfiqar Dasti, Environment Engineer at China oetroleum
Alum is best, but experience is that water temperature is one of most prominent issue regarding dealing Turbidity, you get good results if concentrate with temperature at any season (winter or Sumer), coagulation or Fluccolation main depends on temp
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Noted Zulfiqar Dasti
Published by PHETLA MANGENA, Water quality at WEB Bonaire