... polymeric Ferric Sulphate ) used in water treatment polymeric ferric sulphate PFS,for water treatment A, Product specifications: Polymeric ferric ... decoloring, to take off the oil, dehydration, degerming, deodorization and algae, remove the water COD, BOD and heavy ... system waterworks is approximately the same as that of high chromaticity, high COD, BOD of raw water treatment, complementary with ...