| UV/H2O2降解水中硝基酚及影响因素 |
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| 引用本文： | 张文兵,肖贤明,傅家谟,盛国英,刘光汉.UV/H2O2降解水中硝基酚及影响因素[J].环境科学研究,2001,14(6):9-11. |
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| 作者姓名： | 张文兵 肖贤明 傅家谟 盛国英 刘光汉 |
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| 作者单位： | 张文兵（中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640）;肖贤明（中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640）;傅家谟（中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640）;盛国英（中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640）;刘光汉（中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640） |
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| 基金项目： | 广东省科技创新百项工程(99B06901G)与团队项目(20003046)联合资助 |
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| 摘 要： | UV/H2O2氧化对硝基酚实验表明,H2O2光解产生*OH自由基是对硝基酚降解的直接原因,12min内25mg/L的对硝基酚去除率达到98%以上.溶液中TOC变化与对硝基酚的去除并不同步,说明对硝基酚的降解中生成了一系列的中间产物,然后再达到完全矿化的.体系中H2O2浓度变化显示产生的中间产物对H2O2光解没有明显影响.研究中还对对硝基酚起始质量浓度、H2O2浓度及pH影响进行了考察.研究认为UV/H2O2是对硝基酚脱毒的一种有效方法.
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| 关 键 词： | UV/H2O2技术 对硝基酚 降解 |
| 文章编号： | 1001-6929(2001)06-0009-03 |
| 收稿时间： | 2000/12/11 0:00:00 |
| 修稿时间： | 2000年12月11 |
Degradation of Nitrophenol in Water by UV/H2O2 Process andInfluencing Factors |
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| ZHANG Wen-bing,XIAO Xian-ming,FU Jia-mo,SHENG Guo-ying and LIU Guang-han.Degradation of Nitrophenol in Water by UV/H2O2 Process andInfluencing Factors[J].Research of Environmental Sciences,2001,14(6):9-11. |
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| Authors: | ZHANG Wen-bing XIAO Xian-ming FU Jia-mo SHENG Guo-ying and LIU Guang-han |
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| Institution: | Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou\ 510640, China;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou\ 510640, China;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou\ 510640, China;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou\ 510640, China;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou\ 510640, China |
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| Abstract: | It was proved that the hydroxyl radical generated by the photolysis of hydrogen peroxide is the primary reason that caused p-nitrophenol to degrade in UV/H2O2 process.Within 12 minutes the removal rate of p-nitrophenol can reach 98% or higher.The difference between the change of TOC and the concentration of p-nitrophenol indicates that during the degradation of p-nitrophenol a series of intermediates occurred at first stage and then complete mineralization was reached.The change of the concentration of hydrogen peroxide reveals that the intermediates have little effect on the photolysis of hydrogen peroxide.This study also investigated the influences of initial concentration of p-nitrophenol,hydrogen peroxide and the pH on the degradation of p-nitrophenol.In short,UV/H2O2 process is an efficient method to remove p-nitrophenol in aqueous soluiton. |
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