USING POLYALUMINIUM COAGULANTS IN WATER
2017-8-1 · At one water treatment plant in the Otway region of Victoria, polyaluminium chloride replaced alum and in so doing SO4 levels in the treated water were reduced from 27 to 4 - 5 mg/L. Previously, alum was dosed at 45 to 55 mg/L at this plant. The change to PACl had a major impact on SO4 levels in the sewage, with reduced odour problems evident at several pump stations in the sewerage system.
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