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• 环境科学 • 上一篇    下一篇

氧化剂对CWAO降解垃圾渗滤液中有机物的影响

刘 亮1, 李 鱼1, 刘光辉1, 王 健1, 董德明1, 李海生2   

  1. 1. 吉林大学环境与资源学院, 长春 130012; 2. 北京化工大学化学化工学院, 北京 100029
  • 收稿日期:2004-10-19 修回日期:1900-01-01 出版日期:2005-07-26
  • 通讯作者: 李 鱼

Effect of Oxidant on the Decomposition of Organic Compounds in the Landfill Leachate by CWAO

LIU Liang1, LI Yu1, LIU Guang-hui1, WANG Jian1, DONG De-ming1, LI Hai-sheng2   

  1. 1. College of Environment and Resources, Jilin University, Changchun 130012,China; 2. College of Chemical Engineering, Beijing University of Chemical Techno logy, Beijing 100029, China
  • Received:2004-10-19 Revised:1900-01-01 Online:2005-07-26
  • Contact: LI Yu

摘要: 将催化湿式氧化技术应用于垃圾渗滤液中有机物的降解, 着重研究了氧化剂(以氧 分压表征)对降解效果的影响. 结果表明: 氧化剂是影响垃圾渗滤液中有机物降解 反应的重要因素之一, 随着氧分压的增大, 催化氧化反应速率逐渐增加, 其降解过程符 合Allometric方程(Y=aXb), 但随着氧分压的增大, 催化氧化反应速率增加 的幅度逐渐减小, 并分析了其原因.

关键词: 催化湿式氧化, 垃圾渗滤液, 有机物, 氧化剂, 动力学

Abstract: Catalytic wet air oxidation(CWAO) was employed to reduce the organi c compounds in the landfill leachate and the influence of oxidant (characterized by oxygen partial pressure) on the degradation was investigated. The results in dicate that the oxidant is an important factor in treating leachate by CWAO and decomposition rate of the organic pollutants increases with the rise of oxygen partial pressure, but the influ ence of oxidant on the decomposition rate decreases gradually with the incre ase of oxygen partial pressure. The dynamics course of the organic compounds degradation could be described with the Allometric equation(Y=aXb) , and the mechanisms analyses were given.

Key words: catalytic wet air oxidation, landfill leachate, organic compound, o xidant, dynamics

中图分类号: 

  • X132