Inderscience Publishers

Performance of Moringa oleifera extracts and Sudfloc as coagulant aid in raw water treatment in Mauritius

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Coagulation experiments were done using raw water samples from two treatment plants (herein referred to LMTP and LNTP) in Mauritius in jar tests using Moringa oleifera (MO) extract and Sudfloc. Both coagulant aids reduced alum consumption. Sudfloc was required in low concentration as compared to crude extracts of MO. On samples from LMTP, salt extract of MO (MOSE) was six times more efficient than water extracts of MO (MOWE) with 10 mg/L alum (coagulation efficiency of 50%). Samples from LNTP required lower amounts of coagulant aid. MO extracts increased the organic load but gave better removal of aluminium.

Keywords: Moringa oleifera, Sudfloc, water treatment, Mauritius, coagulants, drinking water, aluminium removal, water pollution, salt extract, organic load

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