Abstract

Water polluted by molybdenum was treated with the process of pre-oxidation adsorption-coagulation-sedimentation-filtration. Powdered activated carbon can adsorb effectively low concentration molybdenum in water. Potassium permanganate can enhance the adsorption effect of activated carbon. The water treated was up to the Standard for Dinking Water Quality of China, in the condition of molybdenum concentration 0.95 mg/L-1.10 mg/L, turbidity <2 NTU and colority <15 units. And the treatment process is as pre-oxidation 30 min with potassium permanganate concentration of 1 mg/L, adsorption 30 min with powdered activated carbon concentration of 40 mg/L, coagulation 30 min with aluminium polychlorid of 40mg/L and polyacrylamide of 0.8mg/L, sedimentation 90 min, and filtration rate 4 m/h.

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