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| 均相光催化氧化去除水中甲草胺的研究 | |
| 引用本文： | 孔祥吉,李冬,张杰.均相光催化氧化去除水中甲草胺的研究[J].北京工业大学学报,2009,35(12). |
| 作者姓名： | 孔祥吉 李冬 张杰 |
| 作者单位： | 1. 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;南京环境科学研究所,环境保护部水污染控制与流域生态保护研究中心,南京,210042 2. 北京工业大学,水质科学与水环境恢复重点实验室,北京,100124 3. 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090;北京工业大学,水质科学与水环境恢复重点实验室,北京,100124 |
| 摘 要： | 采用UV/H2O2体系对水中的甲草胺进行光催化降解研究,讨论了初始pH值、进水温、过氧化氢投量和甲草胺的初始质量浓度等条件对光催化降解甲草胺效率的影响.结果表明,在各种试验条件下,UV/H2O2体系对甲草胺均有较高的去除率,且光解10 min就可将甲草胺的质量浓度降低99.3%,反应体系中羟基自由基的浓度是甲草胺去除的决定性因素;室温条件下,pH值为7.0,H2O2投量为70 mg/L为光催化降解甲草胺的最佳反应条件. |
| 关 键 词： | 除草剂 光降解 去除效率 最佳条件 |
Research on the Removal of Alachlor by Homogeneous Photocatalytic Oxidation Process |
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| KONG Xiang-ji,LI Dong,ZHANG Jie.Research on the Removal of Alachlor by Homogeneous Photocatalytic Oxidation Process[J].Journal of Beijing Polytechnic University,2009,35(12). | |
| Authors: | KONG Xiang-ji LI Dong ZHANG Jie |
| Abstract: | In the study, UV/H_2O_2 photodegradation system was adopted in the removal of alaehlor in water,and the effect of pH, infiuent temperature, dose of H_2O_2, influent concentration of alachlor and other conditions on the photodegradation efficiency were discussed. The results indicated that under different experimental conditions, alachlor got high removal efficiency by UV/H_2O_2 photodegradation systems, and the photodecompose of H_2O_2 were key factors that affected reaction rate, and the conditions of 20℃, pH= 7.0,and 70 mg/L of H_2O_2 were optimum photodegradation conditions of alachlor. |
| Keywords: | insecticides photodegradation removal efficiency optimum reaction conditions |
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