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Trivalent metal salts like aluminum chloride and ferric chloride are bridged by the long polymer chains of polyacrylamide. This leads to significant enhancement of the rate of flocculation. This allows water treatment plants to improve the
Polyelectrolyte is a water soluble polymer carrying ionic charge along the polymer chain; depending upon the charge, these polymers are anionic or cationic. Available in a wide range of molecular weights and charge densities, are both
