| 臭氧氧化及其他强化技术协同降解聚乙烯醇 |
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| 引用本文： | 荆国华,周作明,李艳,董梅霞.臭氧氧化及其他强化技术协同降解聚乙烯醇[J].环境工程学报,2008,2(12):1594-1598. |
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| 作者姓名： | 荆国华 周作明 李艳 董梅霞 |
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| 作者单位： | 华侨大学环境工程系,厦门,361021 |
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| 基金项目： | 国家自然科学基金资助项目（20706022）；福建省自然科学基金资助项目（D0610013）；国务院侨办基金资助项目（06QZR09） |
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| 摘 要： | 采用O3氧化降解水中聚乙烯醇（PVA），考察了O3氧化的影响因素及与其他强化技术协同下的降解效果。结果表明，经12 min处理，O3/超声波、O3/紫外光协同作用下PVA降解率较直接O3氧化的63.2%有显著提高，表现出了良好的协同效应。通过比较酸性条件下添加不同量Fenton试剂的作用效果可知，·OH的氧化作用是PVA降解的重要原因。
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| 关 键 词： | 聚乙烯醇 臭氧氧化 协同降解 羟基自由基 |
| 修稿时间： | 6/3/2008 12:00:00 AM |
Degradation of polyvinyl alcohol with ozonation and other synergic oxidation |
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| Jing Guohu,Zhou Zuoming,Li Yan and Dong Meixia.Degradation of polyvinyl alcohol with ozonation and other synergic oxidation[J].Techniques and Equipment for Environmental Pollution Control,2008,2(12):1594-1598. |
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| Authors: | Jing Guohu Zhou Zuoming Li Yan and Dong Meixia |
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| Institution: | Department of Environmental Engineering, Huaqiao University, Xiamen 361021,Department of Environmental Engineering, Huaqiao University, Xiamen 361021,Department of Environmental Engineering, Huaqiao University, Xiamen 361021 and Department of Environmental Engineering, Huaqiao University, Xiamen 361021 |
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| Abstract: | Degradation of polyvinyl alcohol (PVA) with ozonation and other synergic oxidation was studied. The experimental results show that the removal rate of PVA can reach 63.2% by ozonation after 12 minutes. And the synergistic effect exists in the degradation of PVA with ozonation combined with ultrasonic or ultraviolet, the removal rate of polyvinyl alcohol with O3/ultrasonic or O3/ultraviolet is obviously exceed that of ozonation during degradation process. The results show that the hydroxyl radicals reaction plays the main role in polyvinyl alcohol degradation by comparing the results of ozonation with and without Fenton reagent as hydroxyl radical generator under acidic condition. |
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| Keywords: | polyvinyl alcohol ozonation synergic degradation hydroxyl radicals |
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