Effect Of Enhanced BPBC With Heterogenous Catalysis On The Treatment Of Phneol Wastewater

This paper combines electrochemistry with heterogeneous catalysis technology in thebipolar packed bed cell, the electric nonconducting particle was replaced by the catalyst andheterogeneous catalytic reactions occurred in the electrochemical reactor. Combination ofelectrochemistry with heterogeneous catalysis is realized. Second oxidant O₂,O₃ and H₂O₂produced from assistant reactor bipolar packed bed cell in the fuction of catalysts istransformed to be hydroxyl radical·OH and hydroxyl radical·OH decomposes organiccompound. The oxidation efficiency of second oxidant is intensified.The cheap metal oxide catalysts are produced by dipping meature and the effect ofcatalysis activity is reviewed by content of vivid metal in the dipping solution, dipping time,calcination temperature and calcination time. The results of study on phenol used as the object,H₂O₂ as oxide realizes: the sequence of catalysis activity from high to low isCuO/ZnO/γ-Al₂O₃＞CuO/K₂O/γ-Al₂O₃＞CuO/γ-Al₂O₃＞Fe₂O₃/γ-Al₂O₃＞CuO/CeO₂/γ-Al₂O₃.The COD remove efflcience which catalyst CuO/ZnO/γ-Al₂O₃ catalized oxidization of phenolis 79.52% and the decomposition efficience of H₂O₂ is 97.04%. The active component ofFe₂O₃/γ-Al₂O₃,CuO/γ-Al₂O₃ and CuO/ZnO/γ-Al₂O₃ has serious losing after ten-time use.The COD remove efficience of five electro- heterogeneous catalysis reactor in the use ofthe sieved catalysts in H₂O₂ oxidation has the following descending sequencefrom:electron-CuO/ZnO/γ-Al₂O₃＞electron-CuO/K₂O/γ-Al₂O₃＞electron-CuO/γ-Al₂O₃＞electron-Fe₂O₃/γ-Al₂O₃＞electron-CuO/CeO₂/γ-Al₂O₃. This sequence is the same as the one ofH₂O₂ oxidation. The sequence of the current efficiency of each reactoris is the same as the oneof the COD remove efficience.highest and the electrochemical energy consumption isopposite to it.The main approach of phenol wastewater decomposition is directelectron-decomposation and indirect heterogeneous catalysis. Thereinto, the course ofheterogeneous catalysis oxidation is analogized by heterogeneous catalysis oxidation, thatis·OH produced from assistant reactor bipolar packed bed cell in the fuction of catalystsdescomposed organic compound.