| 水体中不同形态氮对环丙沙星溶液光降解影响 |
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| 引用本文： | 何占伟,刘国光,刘海津,张楠,王刚.水体中不同形态氮对环丙沙星溶液光降解影响[J].环境科学学报,2011,31(11):2409-2415. |
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| 作者姓名： | 何占伟 刘国光 刘海津 张楠 王刚 |
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| 作者单位： | 1. 河南师范大学化学与环境科学学院,新乡,453007
2. 河南师范大学化学与环境科学学院,新乡453007／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： | 国家水体污染控制与治理科技重大专项(No. 2009ZX07211-005-03) |
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| 摘 要： | 研究了在模拟自然光照射条件下,环丙沙星在水相中的光降解行为,以及水中存在的无机氮对其光降解的影响.结果表明,随着环丙沙星初始浓度的增加,其光降解率逐渐降低;水中溶解氧的含量会影响其光解速率,水中溶解氧含量越高,环丙沙星光解速率越小;硝酸根对环丙沙星光降解起促进作用,亚硝酸根起抑制作用,铵根几乎没有影响.当环境pE值逐渐...
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| 关 键 词： | 环丙沙星 光降解 不同形态氮 |
| 收稿时间： | 2011/1/24 0:00:00 |
| 修稿时间： | 2011/3/10 0:00:00 |
The effect of different nitrogen forms on the photo-degradation of ciprofloxacin in water |
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| HE Zhanwei,LIU Guoguang,LIU Haijin,ZHANG Nan and WANG Gang.The effect of different nitrogen forms on the photo-degradation of ciprofloxacin in water[J].Acta Scientiae Circumstantiae,2011,31(11):2409-2415. |
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| Authors: | HE Zhanwei LIU Guoguang LIU Haijin ZHANG Nan and WANG Gang |
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| Institution: | College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007,1. College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007;2. Faculty of Environment Science and Engineering, Guangdong University of Technology, Guangzhou 510006,College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007,College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007 and College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007 |
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| Abstract: | This paper investigated the photo-degradation performance of Ciprofloxacin (CFX) under simulated solar irradiation and the effect of inorganic nitrogen in water. The results showed that the photo-degradation rate decreased with the increase of initial concentration of CFX and dissolved oxygen.Nitrate accelerated the photo-degradation rate whereas nitrite inhibited it, and ammonium had little effect on it. Along with the increase of pE value, nitrogen form changed from NH4+to NO2- or NO3-, the photo-degradation rate of CFX decreased at the beginning and increased afterwards. The experiments showed that there was no interaction between NH4+ and NO3-.When NO3-and NO2- coexisted, the photo-degradation rate of CFX was lower than the theoretic rate, which indicated that the facilitation of NO3- was inhibited because of the existence of NO2-. |
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| Keywords: | ciprofloxacin photo-degradation different nitrogen forms |
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