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《China Water & Wastewater》 2005-04
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Assessment on the Application of Three Kinds of Preoxidants in Water Treatment

WANG Gui-rong~1, ZHANG Jie~2, HUANG Li~2, ZHOU Pi-quan~2, TANG You-yao~3(1. Dept. of Electromechanical Engineering, Wuhan University of Science and Technology, Wuhan 430073, China; 2.Wuhan Water Group Co. Ltd., Wuhan 430034, China; 3. School of Environmental Science and Engineering, Central China University of Science and Technology, Wuhan 430074, China)  
Eutrophication of source water seriously influences the operation of conventional water treatment plant, and fails to guarantee the treated water quality. And so, use of KMnO_4, H_2O_2, and ClO_2 as pre-oxidants was studied. The result shows that the three oxidants can significantly improve the removal rate for algae, turbidity, and organic substances from water, and are efficient in removal of bacteria and coliform group. However, addition of KMnO_4 will increase the color of the treated water, and use of ClO_2 as oxidant will cause the high cost. By comparison, H_2O_2 is a more favorable pre-oxidant.
【Fund】: 建设部“十五”科技攻关项目(01-2-038)
【CateGory Index】: TU991.41
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