Like all coagulants PAC will work by extracting and afterwards clumping jointly dissolved, colloidal and suspended subject. The ensuing floc is then trapped to the filter. Alum is efficient in getting rid of turbidity and suspended particles. It is commonly Employed in wastewater procedure which is Expense-powerful for big-scale apps. https://www.tjcyindustrialchem.com/news/what-is-poly-aluminium-chloride.html