The Feasibility Research with Potassium Permanganate to Preoxidize in Light Polluted Yellow River Water

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 reduced to each index. The chemical oxygen demand ratio of the phenol is 64.6%, the color removing rate amounted to 80.4%, the turbidity removing rate amounted to 90.1%, greatly improving the water quality of purification.