| Fenton法氧化降解聚乙烯醇的机制 |
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| 引用本文： | 华兆哲,曹扬,陈坚.Fenton法氧化降解聚乙烯醇的机制[J].化工环保,2006,26(1):1-4. |
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| 作者姓名： | 华兆哲 曹扬 陈坚 |
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| 作者单位： | 江南大学,生物工程学院环境生物技术实验室,江苏,无锡,214036;江南大学,工业生物技术教育部重点实验室,江苏,无锡,214036 |
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| 基金项目： | 教育部留学回国人员科研启动基金项目[教外司留（2005-55）]. |
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| 摘 要： | 为深入了解Fenton法氧化降解聚乙烯醇（PVA）的机制，通过考察反应过程中COD、BOD5、总有机碳及pH等随反应时间的变化，研究了聚乙烯醇Fenton氧化降解过程的特点，结果表明，当PVA被Fenton试剂氧化时，可生成大量CO2，同时生成酸性中间产物。进一步分析认为，当Fenton试剂中H2O2不足景时PVA氧化的中间产物以醛为主，而当H2O2足量时醛会被继续氧化生成有机酸，最终COD去除率达到80％。
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| 关 键 词： | 芬顿试剂 聚乙烯醇 氧化 降解 机制 |
| 文章编号： | 1006-1878（2006）01-0001-04 |
| 收稿时间： | 2005-06-29 |
| 修稿时间： | 2005-07-08 |
Oxidation Degradation Mechanism of Polyvinyl Alcohol by Fenton Process |
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| Hua Zhaozhe,Cao Yang,Chen Jian.Oxidation Degradation Mechanism of Polyvinyl Alcohol by Fenton Process[J].Environmental Protection of Chemical Industry,2006,26(1):1-4. |
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| Authors: | Hua Zhaozhe Cao Yang Chen Jian |
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| Institution: | 1. Environmental Biotechnology Laboratory, School of Biotechnology, Southern Yangtze University, Jiangsu Wuxi 214036, China; 2. Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University ,Jiangsu Wuxi 214036, China |
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| Abstract: | In order to comprehend the oxidation degradation mechanism of polyvinyl alcohol(PVA)by Fenton process,characteristics of the process were studied by investigating the varying of parameters(such as COD,BOD_5,TOC,pH,and so on)with the reaction time.The results show that a large amount of CO_2 and some acidic intermediate products are generated in the oxidation of PVA by Fenton reagent.Further analysis indicates that when H_2O_2 in Fenton reagent is deficient,the main intermediate product of PVA oxidation is aldehyde,whereas when H_2O_2 is enough,aldehyde will be further oxidized to organic acid.At the end,the removal rate of COD can reach 80%. |
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| Keywords: | Fenton reagent polyvinyl alcohol oxidation degradation mechanism |
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