Laboratory and full-scale experiments were conducted for enhancing the coagulation of stabilised surface waters with high organic content by permanganate preoxidation. It was indicated that permanganate preoxidation enhanced both the processes of coagulation and filtration of selected surface waters, River Songhua water, Qitaihe Reservoir water and Ba Reservoir water. Permanganate preoxidation is especially effective for enhancing the coagulation of very stable surface waters with relatively high organic content. Experimental results showed that the manganese dioxide produced in situ during permanganate preoxidation played an important role in enhancing the coagulation and filtration processes. The experimental results suggested that manganese dioxide may adsorb naturally occurring organic materials through surface bonding to form bigger particulates, thus increasing the floc density and improving the removal of organic particulates and possibly the inorganic fine particles. Manganese dioxide was shown to adsorb humic acid and enhance its removal by filtration.
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Research Article|
January 01 2001
Enhanced coagulation of surface waters with high organic content by permangante preoxidation Available to Purchase
J. Ma;
J. Ma
*School of Municipal and Environmental Engineering, Harbin University of Architecture and Engineering, PO Box 627, Harbin 150090, PR China
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G.B. Li;
G.B. Li
*School of Municipal and Environmental Engineering, Harbin University of Architecture and Engineering, PO Box 627, Harbin 150090, PR China
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Z.L. Chen;
Z.L. Chen
*School of Municipal and Environmental Engineering, Harbin University of Architecture and Engineering, PO Box 627, Harbin 150090, PR China
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G.R. Xu;
G.R. Xu
*School of Municipal and Environmental Engineering, Harbin University of Architecture and Engineering, PO Box 627, Harbin 150090, PR China
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G.Q. Cai
G.Q. Cai
**Heilongjiang Electrical Power Company, Harbin 15001, PR China
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Water Supply (2001) 1 (1): 51–61.
Citation
J. Ma, G.B. Li, Z.L. Chen, G.R. Xu, G.Q. Cai; Enhanced coagulation of surface waters with high organic content by permangante preoxidation. Water Supply 1 January 2001; 1 (1): 51–61. doi: https://doi.org/10.2166/ws.2001.0007
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