| 旋转盘反应器光催化降解苯酚废水动力学 |
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| 引用本文： | 魏冰, 张巧玲, 刘有智, 李磊, 郭加欣, 罗莹. 旋转盘反应器光催化降解苯酚废水动力学[J]. 环境工程学报, 2016, 10(3): 1305-1309. doi: 10.12030/j.cjee.20160349 |
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| 作者姓名： | 魏冰 张巧玲 刘有智 李磊 郭加欣 罗莹 |
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| 作者单位： | 1.中北大学超重力化工过程山西省重点实验室, 太原 030051 |
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| 摘 要： | 采用旋转盘反应器(SDR)降解苯酚废水,对苯酚初始浓度、溶液pH值、H2O2的添加对其光催化降解动力学的影响进行了研究。结果表明,SDR内的光催化降解动力学特征符合一级反应动力学规律。苯酚初始浓度越低,反应速率常数k值越大;溶液pH=2时的降解速率高于其他pH值;H2O2的协同作用使苯酚的降解速率明显提高,其速率常数k值为未添加H2O2时的78倍。
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| 关 键 词： | 旋转盘反应器 含酚废水 光催化降解 动力学 |
| 收稿时间： | 2015-11-10 |
Kinetics of phenol by photocatalysis degradation in spinning disk reactor |
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| Wei Bing, Zhang Qiaoling, Liu Youzhi, Li Lei, Guo Jiaxin, Luo Ying. Kinetics of phenol by photocatalysis degradation in spinning disk reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(3): 1305-1309. doi: 10.12030/j.cjee.20160349 |
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| Authors: | Wei Bing Zhang Qiaoling Liu Youzhi Li Lei Guo Jiaxin Luo Ying |
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| Affiliation: | 1.Shanxi Province Key Laboratory of High Gravity Chemical Engineering, North University of China, Taiyuan 030051, China |
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| Abstract: | The effects of initial phenol concentration, pH value, and H2O2 on the photocatalytic degradation kinetics of phenol wastewater were studied in a spinning disk reactor. The results showed that the above operating conditions have little influence on the photocatalytic degradation of phenol, which follows pseudo-first-order reaction kinetics. The lower the initial concentration of phenol, the higher is the reaction rate; the extent of degradation is maximum at pH=2; and the degradation rate is improved up to 78 times when H2O2 is added, due to synergistic effect. |
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| Keywords: | spinning disk reactor phenol wastewater photocatalysis degradation kinetics |
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