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非均相催化降解去除废水中过氧化氢异丙苯

徐守强 宋玉栋 李志民 周岳溪 章丽萍

徐守强, 宋玉栋, 李志民, 周岳溪, 章丽萍. 非均相催化降解去除废水中过氧化氢异丙苯[J]. 环境科学研究, 2016, 29(9): 1378-1384.
引用本文: 徐守强, 宋玉栋, 李志民, 周岳溪, 章丽萍. 非均相催化降解去除废水中过氧化氢异丙苯[J]. 环境科学研究, 2016, 29(9): 1378-1384.
XU Shouqiang, SONG Yudong, LI Zhimin, ZHOU Yuexi, ZHANG Liping. Degradation and Removal of Cumene Hydroperoxide from Wastewater through Heterogeneous Catalysis[J]. Research of Environmental Sciences, 2016, 29(9): 1378-1384.
Citation: XU Shouqiang, SONG Yudong, LI Zhimin, ZHOU Yuexi, ZHANG Liping. Degradation and Removal of Cumene Hydroperoxide from Wastewater through Heterogeneous Catalysis[J]. Research of Environmental Sciences, 2016, 29(9): 1378-1384.

非均相催化降解去除废水中过氧化氢异丙苯

基金项目: [ZK(]国家水体污染控制与治理科技重大专项(2012XZ07201-005)[ZK)]

Degradation and Removal of Cumene Hydroperoxide from Wastewater through Heterogeneous Catalysis

  • 摘要: 为消除废水中CHP(过氧化氢异丙苯)对废水生物处理系统的不利影响,筛选出MnO2为适合催化CHP降解脱毒的非均相催化剂,并以MnO2为催化剂,催化降解自配废水中的CHP,采用间歇试验考察了反应pH、温度、MnO2投加量、初始ρ(CHP)对CHP去除效果的影响,对CHP降解动力学进行了分析,同时对处理前后废水组分和生物毒性做了鉴定.结果表明:CHP催化降解速率与温度、初始ρ(CHP)和ρ(MnO2)呈正相关;pH为4~10,温度为50~70 ℃,ρ(MnO2)为10~20 g/L是较为优化的反应条件.MnO2催化降解CHP的反应符合表面反应机制,催化剂表面接触面积越大,CHP降解速率越快;在pH为2或3时,CHP降解速率显著高于pH为4~10时,但Mn溶出较为显著.在初始ρ(CHP)为0.4~1.0 g/L时,CHP催化降解反应遵循一级反应动力学,符合Arrhenius方程,Ea(表观活化能)为37.56 kJ/mol.反应产物主要为2-苯基-2-丙醇,处理后废水的OUR(耗氧速率)抑制率由63%降为0,对活性污泥没有抑制.

     

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出版历程
  • 收稿日期:  2016-01-20
  • 修回日期:  2016-03-04
  • 刊出日期:  2016-09-25

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