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Treatment of spent caustic by three kinds of photocatalyticoxidation processes

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【作者】 余政哲； 孙德智； 史鹏飞； 段晓东； 李长海； 杜龙弟；

【Author】 YU Zheng-zhe, SUN De-zhi, SHI Peng-fei, DUAN Xiao-dong, LI Chang-hai, DU Long-di (Dept. of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001,China)

【机构】 Dept. of Environmental Science and Engineering； Harbin Institute of Technology； Harbin Institute of Technology Harbin 150001； China； Harbin 150001； China；

【Abstract】 The investigation of the performance of UV/H2O2, UV/O3 and UV/H2O2/O3 oxidation systems treating spent caustic from an ethylene plant shows that in UV/H2O2 system, with the increase of H2O2dosage, removal efficiencies of COD and the ratio of biochemical oxygen demand （BOD） to chemical oxygen demand （COD） of the effluent were increased and a better performance was obtained than the H2O2system alone. In UV/H2O2 system, removal efficiency of COD reached 68% under the optimum condition, and BOD/COD ratio was significantly increased from 0.22 to 0.52. In UV/O3 system, with the increase of O3dosage, removal efficiency of COD and BOD/COD ratio were increased, and a better performance was obtained than the O3system 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.

【关键词】 spent caustic； photochemical oxidation； UV/O3 system； UV/H2O2system； UV/H2O2/O3 system；
【Key words】 spent caustic； photochemical oxidation； UV/O3 system； UV/H2O2system； UV/H2O2/O3 system；
  • 【文献出处】 Journal of Harbin Institute of Technology ,哈尔滨工业大学学报(英文版) , 编辑部邮箱 ,2003年04期
  • 【分类号】X703
  • 【被引频次】3
  • 【下载频次】22
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