| Fenton氧化法对磺胺类抗生素的降解动力学 |
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| 引用本文： | 符荷花,陈猛,熊小京.Fenton氧化法对磺胺类抗生素的降解动力学[J].环境工程学报,2014,8(3):972-976. |
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| 作者姓名： | 符荷花 陈猛 熊小京 |
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| 作者单位： | 厦门大学环境与生态学院, 厦门 361005;厦门大学环境与生态学院, 厦门 361005;厦门大学环境与生态学院, 厦门 361005 |
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| 基金项目： | 福建省自然科学基金（2012J01048）；中国科学院城市环境研究所开放基金（KLUEH201306） |
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| 摘 要： | 采用Fenton氧化法同时降解水溶液中磺胺吡啶(SPY)、磺胺二甲基嘧啶(SMZ)和磺胺甲噁唑(SMX)。系统考查了初始H2O2浓度、Fe2+浓度、pH对3种磺胺类抗生素降解性能的影响。结果表明,3种磺胺抗生素被完全降解的最佳Fenton氧化条件是:H2O2浓度为2.0 mmol/L,Fe2+浓度为0.10 mmol/L,pH为3.0~3.5,反应时间为20 min。Fenton试剂对3种磺胺类抗生素的降解符合一级反应动力学,速度常数为0.0318~0.2002 min-1。
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| 关 键 词： | Fenton氧化法 磺胺类抗生素 动力学模拟 |
Kinetics of degradation of sulfonamides by Fenton process |
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| Fu Hehu,Chen Meng and Xiong Xiaojing.Kinetics of degradation of sulfonamides by Fenton process[J].Techniques and Equipment for Environmental Pollution Control,2014,8(3):972-976. |
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| Authors: | Fu Hehu Chen Meng and Xiong Xiaojing |
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| Institution: | College of the Environment and Ecology, Xiamen University, Xiamen 361005, China;College of the Environment and Ecology, Xiamen University, Xiamen 361005, China;College of the Environment and Ecology, Xiamen University, Xiamen 361005, China |
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| Abstract: | The degradability of sulfapyridine,sulfamethazine and sulfamethoxazole from aqueous solution with Fenton process was investigated using different parameters,such as pH value,H2O2 and Fe2+ concentrations. The result showed that the optimum Fenton oxidation conditions for complete removal of sulfamethoxazole,sulfapyridine and sulfamethazine,simultaneously were H2O2 concentration of 2.0 mmol/L,Fe2+ concentration of 0.10 mmol/L,pH of 3.0 to 3.5 and reaction time of 20 min. Fenton degradation followed a first-order kinetic model with reaction constant of 0.0318 to 0.2002 min-1. |
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| Keywords: | Fenton oxidation sulfonamides kinetics modeling |
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