| 稀土离子均相电催化氧化处理含酚模拟废水 |
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| 引用本文： | 刘咏,李斯哲,杨东梅,赵仕林,操飞.稀土离子均相电催化氧化处理含酚模拟废水[J].稀土,2011,32(6). |
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| 作者姓名： | 刘咏 李斯哲 杨东梅 赵仕林 操飞 |
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| 作者单位： | 1. 四川师范大学化学与材料科学学院,四川成都,610066
2. 西南交通大学环境科学与工程学院,四川成都,610031 |
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| 基金项目： | 国家自然科学基金项目，四川省教育厅重点项目 |
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| 摘 要： | 以不同稀土离子为催化剂,研究了含酚模拟废水的电催化氧化降解.以COD和苯酚的去除情况作为考察指标,确定最佳催化剂及其最佳处理条件；考察了稀土离子与过渡金属离子的投配比对废水处理效果的影响,并对4种稀土催化剂的电化学性能进行了测试.结果表明:所选稀土离子La3+、Ce4+、Pr3+、Nd3+对苯酚的氧化均有良好的电催化性能,其中Pr3+的均相电催化效果最好.在pH =3、电流密度为66.7mA · cm-2条件下,Pr3+投加 量为0.11mmol·L-1能达到最好的降解效果.在此条件下电解废水60min时,COD和苯酚去除率分别达到62.1％和76.3％,比未加催化剂分别提高35.1％和36.6％.Pr3+和Mn2+的协同作用可提高废水的处理效果,当Mn2+与Pr3+的投配比为1∶1时电催化处理效果最好.
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| 关 键 词： | 苯酚 稀土 均相电催化 去除率 |
Study on the Treatment of Phenolic Simulaton Wastewater by Homogenous Electro-catalytic Oxidation Process |
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| LIU Yong,LI Si-zhe,YANG Dong-mei,ZHAO Shi-lin,CAO Fei.Study on the Treatment of Phenolic Simulaton Wastewater by Homogenous Electro-catalytic Oxidation Process[J].Chinese Rare Earths,2011,32(6). |
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| Authors: | LIU Yong LI Si-zhe YANG Dong-mei ZHAO Shi-lin CAO Fei |
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| Affiliation: | LIU Yong1,LI Si-zhe1,YANG Dong-mei2,ZHAO Shi-lin1,CAO Fei1 (1.College of Chemistry and Material Science,Sichuan Normal University,Chengdu 610066,China,2.College of Environmental Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The electro-catalytic oxidation degradation of phenolic simulation wastewater was studied by using various rare earth ions as catalyst.The optimal catalyst and its optimal treatment conditions were determined with chemical oxygen demand(COD) and removal rate of phenol as the research indexes.The influence of the ratio of rare earth ions to transition metal ions on the treatment effect of the waste water was discussed,and the electrochemical properties of the catalysts containning rare earth ions were measur... |
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| Keywords: | phenol rare earth homogenous electro-catalytic removal rate |
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