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The effect of preoxidation Yellow River with light polluted water by composite potassium permanganate process are studied in the text. The best adding quantity of composite potassium permanganate is 1.5-3.0 mg/l, PAC as the flocculant, the best adding quantity is 60 mg/l. Under these conditions, pretreat Yellow River with mic-polluted water which the results show that permanganate preoxidation obviously...
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