| 铁促双电极电化学氧化处理丙烯腈生产废水的研究 |
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| 引用本文： | 褚衍洋,张钦辉,钱翌,白卯娟. 铁促双电极电化学氧化处理丙烯腈生产废水的研究[J]. 环境科学, 2009, 30(7): 1949-1954 |
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| 作者姓名： | 褚衍洋 张钦辉 钱翌 白卯娟 |
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| 作者单位： | 青岛科技大学环境与安全工程学院,青岛,266042;华东理工大学资源与环境工程学院,上海,200237 |
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| 基金项目： | 国家自然科学基金项目(50808103) |
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| 摘 要： | 采用钛基二氧化锡(Ti/SnO2)和金属铁构成组合阳极,并以石墨为阴极,研究了铁促双电极电化学氧化处理丙烯腈生产废水的效果及反应过程的相关规律.结果表明,与传统电化学氧化相比,采用组合阳极的双电极氧化过程获得了更高的有机物去除率并提高了电流效率.在相同电压下,当不外加H2O2时,COD去除率比采用传统电化学氧化提高11.0%～13.8%,电流效率提高8.0%～15.0%,而当外加H2O2浓度为2 200 mg·L-1,且电压为4.0V时,COD去除率达74.6%, TOC去除率达67.9%.随着外加H2O2浓度的增加,COD和TOC去除率增加.反应初始阶段H2O2浓度较高而Fe2+浓度很低,随反应时间延长H2O2浓度迅速下降而Fe2+浓度则逐渐升高.反应过程中H2O2与Fe2+浓度变化速率与电压密切相关. H2O2初始浓度一定的情况下,阳极通电时间对电流效率影响显著.双电极电化学氧化对丙烯腈生产废水色度也具有良好的去除作用.铁促双电极电化学氧化为有机废水的处理提供了一个新的选择.
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| 关 键 词： | 铁促 双电极 电化学氧化 丙烯腈 废水 |
| 收稿时间： | 2008-08-03 |
| 修稿时间： | 2008-11-11 |
Electrochemical Oxidation of Dual Electrodes with Iron Promoting Used for the Treatment of Wastewater from Acrylonitrile Production |
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| CHU Yan-yang,ZHANG Qin-hui,QIAN Yi and BAI Mao-juan. Electrochemical Oxidation of Dual Electrodes with Iron Promoting Used for the Treatment of Wastewater from Acrylonitrile Production[J]. Chinese Journal of Environmental Science, 2009, 30(7): 1949-1954 |
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| Authors: | CHU Yan-yang ZHANG Qin-hui QIAN Yi BAI Mao-juan |
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| Affiliation: | 1.School of Environment and Safety Engineering;Qingdao University of Science and Technology;Qingdao 266042;China;2. College of Resource and Environmental Engineering;East China University of Science and Technology;Shanghai 200237;China |
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| Abstract: | Effects and laws of electrochemical oxidation of dual electrodes with iron promoting for the treatment of wastewater from acrylonitrile production were investigated using Ti/SnO2 + Fe as combined anodes and graphite as cathode. Compared with traditional electrochemical oxidation,the higher removal of organic pollutants and current efficiency were obtained via oxidation of dual electrodes. Through the process COD removal efficiency and current efficiency were enhanced by 11.0%-13.8% and 8.0%-15.0% respective... |
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| Keywords: | iron promoting dual electrodes electrochemical oxidation acrylonitrile wastewater |
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