Abstract
Pharmaceutical wastewater was treated by coupling of micro-electrolysis-catalytic oxidation, using porous multicomponent alloys as packing. Influence of initial pH of wastewater, micro electrolysis time, packing ration, H2O2 dosage and catalytic oxidation time on removal rate of COD in wastewater was studied. The optimal process condition for treatment of pharmaceutical wastewater by coupling of micro-electrolysis-catalytic oxidation is as follows: initial pH 2.5, micro electrolysis time 90 min, packing ration 1:1, and dosage of H2O2 2 ‰, catalytic oxidation time 120min and oxygen aeration. Under the optimal process condition, the average removal of COD is 52.5%, and the average mass concentration of COD is 276 mg/L.
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