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UV-catalytic treatment of spent caustic from ethene plant with hydrogen peroxide and ozone oxidation
Abstract： The performance of UV/H2O2, UV/O3 and UV/H2O2/O3 oxidation systems for treating spent caustic froman ethylene plant was investigated. In UV/H2O2 system, with the increase of H2O2 dosage, removal efficiencies ofCOD and the ratio of biochemical oxygen demand(BOD) to chemical oxygen demand(COD) of the effluent wereincreased and a better performance was obtained than the H2O2 system alone. In UV/H2O2 system, removalefficiency of COD reach 68% under the optimum condition, and BOD/COD ratio was significantly increased from0.22 to 0.52. In UV/O3 system, with the increase of O3 dosage, removal efficiency of COD and BOD/COD ratiowere increased, and a better performance was obtained than the O3 system alone. Under the optimum condition,removal efficiency of COD was 54%, and BOD/COD ratio was significantly increased from 0.22 to 0.48. In UV/H2O2/O3 system, COD removal efficiency was found to be 22.0% higher than UV/O3 system. 作 者： YU Zheng-zhe SUN De-zhi LI Chang-hai SHI Peng-fei DUAN Xiao-dong SUN Guo-rong LIU Jun-xin 作者單位： YU Zheng-zhe(Research Center for Ecg-Environmental Sciences, CAS, Beijing 100085, China;Department of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)SUN De-zhi,LI Chang-hai,SHI Peng-fei,DUAN Xiao-dong,SUN Guo-rong(Department of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)
LIU Jun-xin(Research Center for Ecg-Environmental Sciences, CAS, Beijing 100085, China)
期 刊： 環(huán)境科學(xué)學(xué)報(bào)(英文版) ISTICSCI Journal： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2004, 16(2) 分類號(hào)： X701 Keywords： spent caustic photochemical oxidation UV/O3 system UV/H2O2 system UV/H2O2/O3 system【UV-catalytic treatment of spent caus】相關(guān)文章：