| 光催化氧化法处理甲醛废水的研究 |
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| 引用本文： | 王玉军,贺华阳,骆广生,朱慎林,戴猷元.光催化氧化法处理甲醛废水的研究[J].化工环保,2003,23(6):311-314. |
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| 作者姓名： | 王玉军 贺华阳 骆广生 朱慎林 戴猷元 |
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| 作者单位： | 清华大学,化学工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金项目 (2 9836 130 ) |
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| 摘 要： | 用二氧化钛作催化剂，对较低浓度甲醛废水进行了光催化氧化处理试验。研究了催化剂用量、溶液pH、甲醛初始浓度及外加氧化剂等因素对光催化氧化的影响。试验结果表明，增加催化剂用量可以显著增加反应速度，提高降解效率；增强溶液的酸性和碱性都可以加快甲醛的降解速度，且碱性条件更加有利；在试验浓度范围内，甲醛的起始浓度对其降解反应基本没有影响；外加氧化剂双氧水可以在没有紫外光条件下，很快将甲醛氧化。
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| 关 键 词： | 光催化氧化 甲醛 二氧化钛 废水处理 |
| 文章编号： | 1006-1878(2003)06-0311-04 |
| 修稿时间： | 2002年9月22日 |
Study on Photocatalytic Oxidation of Formaldehyde in Wastewater |
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| Wang Yujun,He Huayang,Luo Guangsheng,Zhu Shenlin,Dai Youyuan.Study on Photocatalytic Oxidation of Formaldehyde in Wastewater[J].Environmental Protection of Chemical Industry,2003,23(6):311-314. |
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| Authors: | Wang Yujun He Huayang Luo Guangsheng Zhu Shenlin Dai Youyuan |
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| Abstract: | The test on photocatalytic oxidation of low-concentration formaldehyde in aqueous solution was carried out using titanium dioxide as catalyst. The effects of catalyst dosage, solution pH, initial concentration of formaldehyde and additional oxidant on photocatalytic oxidation were investigated. The results show that increasing the catalyst dosage can significantly enhance the reaction rate and degradation efficiency; enhancing the solution acidity or basicity can increase the degradation rate of formaldehyde, and basic condition is more favorable than acid condition; in experimental conditions, the initial concentration of formaldehyde has essentially no effect on the reaction; H_2O_2 as an additional oxidant can rapidly oxidize formaldehyde without UV radiation. |
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| Keywords: | photocatalytic oxidation formaldehyde titanium dioxide wastewater treatment |
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