... high efficiency lron kind of inorganic polymer flocculant, 2. Polymeric ferric sulfate coagulation excellent performance, alum flowers dense, sedimentation ... a normal phenomenon. E.The main items: 7, polymeric ferric sulfate used in environmental protection, industrial wastewater treatment, ... woven bag with PE liner. n.w. 25kg.PAC FOR OIL INDUSTRIAL Spray dried PFS ( polymeric Ferric Sulphate ) used ...