Like all coagulants PAC performs by extracting and afterwards clumping with each other dissolved, colloidal and suspended subject. The resulting floc is then trapped within the filter. There are actually now a number of different grades of PAC with aluminium concentrations between 9.5% and 18%. The concentration of aluminium isn't https://www.tjcyindustrialchem.com/news/what-is-poly-aluminium-chloride.html