| 亚铁离子活化过硫酸氢钾复合盐降解水溶液中萘普生 |
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| 引用本文： | 范斯娜, 吕文英, 姚坤, 刘国光, 林亲铁, 李富华, 陈平, 纪夏玲, 李丽明. 亚铁离子活化过硫酸氢钾复合盐降解水溶液中萘普生[J]. 环境工程学报, 2015, 9(6): 2767-2770. doi: 10.12030/j.cjee.20150637 |
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| 作者姓名： | 范斯娜 吕文英 姚坤 刘国光 林亲铁 李富华 陈平 纪夏玲 李丽明 |
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| 作者单位： | 1.广东工业大学环境科学与工程学院, 广州 510006 |
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| 基金项目： | 国家自然科学基金资助项目(21377031) |
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| 摘 要： | 在不同pH值、Fe2+浓度和过硫酸氢钾复合盐(PMS)浓度下,探究降解萘普生(NPX)的最佳条件,并通过分批投加Fe2+和改变投加顺序的方式,提高降解NPX的效率.结果表明,NPX在pH=3的条件下,降解效果最好;Fe2+浓度改变时,PMS/ Fe2+/NPX=1/0.75/1条件下,NPX去除率最高;分批投加Fe2+和先投加Fe2+均可大幅提高NPX去除率.缓慢少量的产生硫酸根自由基(SO4·-)更利于处理有机物,Fe2+的浓度则在产生自由基方面起着重要作用.
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| 关 键 词： | 萘普生 硫酸根自由基 过硫酸氢钾复合盐 亚铁离子 |
| 收稿时间： | 2014-06-03 |
Degradation of naproxen in aqueous by peroxymonosulfate activated by ferrous ion |
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| Fan Sina, Lü Wenying, Yao Kun, Liu Guoguang, Lin Qintie, Li Fuhua, Chen Ping, Ji Xialing, Li Liming. Degradation of naproxen in aqueous by peroxymonosulfate activated by ferrous ion[J]. Chinese Journal of Environmental Engineering, 2015, 9(6): 2767-2770. doi: 10.12030/j.cjee.20150637 |
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| Authors: | Fan Sina Lü Wenying Yao Kun Liu Guoguang Lin Qintie Li Fuhua Chen Ping Ji Xialing Li Liming |
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| Affiliation: | 1.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: | Experiments were conducted to determine the optimal conditions degrading NPX at different pH, concentrations of Fe2+ and PMS. The sequential addition of Fe2+ and changing the order of Fe2+ and PMS addition resulted in an improvement in NPX removal. Results show that the highest NPX decomposition occurred at pH 3; the degradation of NPX is better at the molar ratio of PMS/Fe2+/NPX=1/0.75/1 when the concentration of Fe2+ is changed; sequential addition of Fe2+ and adding Fe2+ at first result in an efficient NPX removal. It appears that a slow and steady production of sulfate radicals is desirable of degrading organic compounds and the concentration of Fe2+ plays an important role in formation of free radicals. |
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| Keywords: | naproxen sulfate radicals peroxymonosulfate ferrous ion |
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