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电化学(中英文) ›› 2005, Vol. 11 ›› Issue (1): 101-104. 

• 研究论文 • 上一篇    下一篇

电催化氧化技术处理苯酚废水研究

李天成,朱慎林   

  1. 清华大学化学工程系萃取与分离国家重点实验室,清华大学化学工程系萃取与分离国家重点实验室 北京,100084 ,北京,100084
  • 收稿日期:2005-02-28 修回日期:2005-02-28 出版日期:2005-02-28 发布日期:2005-02-28

Research on Phenol Wastewater Treatment by Electrochemical Oxidation

LI Tian-cheng, ZHU Shen-lin   

  1. (Department of Chemical Engineering, Tsinghua University, Beijing 100084,China
  • Received:2005-02-28 Revised:2005-02-28 Published:2005-02-28 Online:2005-02-28

摘要: 电化学氧化法可有效处理挥发酚类废水,而阳极材料性能直接制约其电氧化效率.本文分别针对不锈钢、柔性石墨和SnO2 /Ti复合材料测定了其析氧过电位,并以不锈钢、柔性石墨为阳极材料,在 5~6V直流电压下,对合成苯酚废水进行了电化学氧化处理.结果表明:析氧过电位次序为SnO2 /Ti>柔性石墨 >不锈钢,处理后水的COD值接近或小于 100mg·L-1,且出水的苯酚浓度小于 0. 5mg·L-1.

关键词: 阳极极化曲线, 过电位, 电化学氧化, 苯酚

Abstract: Electrochemical oxidation is an effective technology for the phenol wastewater treatment, and the anode properties are important to the electrochemical oxidationefficiency. The over-potentials of oxygen evolution have been measured for thestainless steel, feasible graphite and SnO_2/Ti anode respectively. Moreover, the synthetic phenol wastewater was treated by the electrochemical oxidation with the stainless steel or feasible graphite anodes. The experimental results showed that the order of the over-potential is SnO_2/Ti > graphite > stainless steel; meanwhile, the COD values of purified water were approaching to or less than 100 mg·L~(-1), and the phenol concentrations in the purified water were below 0.5 mg·L~(-1).

Key words: Anode polarized curve, Over-potential, Electrochemical oxidation, Phenol

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