| Zn2+络合促进土霉素在粘土矿物表面的吸附 |
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| 引用本文： | 韩成伟,乔显亮,陈景文,蔡喜运.Zn2+络合促进土霉素在粘土矿物表面的吸附[J].环境科学,2009,30(8):2408-2413. |
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| 作者姓名： | 韩成伟 乔显亮 陈景文 蔡喜运 |
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| 作者单位： | 1. 大连理工大学环境科学与工程系,工业生态与环境工程教育部重点实验室,大连,116024;大连理工大学土木水利学院,大连,116024
2. 大连理工大学环境科学与工程系,工业生态与环境工程教育部重点实验室,大连,116024 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2006CB403302);;国家自然科学基金项目(20607005,20877014) |
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| 摘 要： | 土霉素(OTC)和Zn2+作为饲料添加剂大量应用于畜禽养殖中,会通过畜禽粪便施用等方式进入土壤环境.研究了它们在粘土矿物上的吸附行为及其相互影响.结果发现,阳离子交换量大的蒙脱石对OTC的吸附系数(Kd)明显高于高岭石;而电荷属性的不同,导致2种粘土的Kd随pH呈现不同的趋势.Zn2+可对OTC吸附产生影响,在4
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| 关 键 词： | 土霉素 锌离子 络合 键桥 粘土矿物 |
| 收稿时间： | 2008/9/18 0:00:00 |
| 修稿时间： | 2008/10/20 0:00:00 |
Enhanced Sorption of OTC on Clays via Complexation with Zn2+ |
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| HAN Cheng-wei,QIAO Xian-liang,CHEN Jing-wen and CAI Xi-yun.Enhanced Sorption of OTC on Clays via Complexation with Zn2+[J].Chinese Journal of Environmental Science,2009,30(8):2408-2413. |
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| Authors: | HAN Cheng-wei QIAO Xian-liang CHEN Jing-wen and CAI Xi-yun |
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| Institution: | 1;2;1.Key Laboratory of Industrial Ecology and Environmental Engineering;Ministry of Education;Department of Environmental Science and Technology;Dalian University of Technology;Dalian 116024;China;2.School of Civil and Hydraulic Engineering;Dalian University;China |
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| Abstract: | Oxytetracycline(OTC) and Zn~(2+) are both widely used as growth promoters in concentrated animal feeding operations,which are discharged into soil system by manure application.There is special environment significance to study the sorption and interaction of OTC with accompanied metal cations on clays to elucidate their environmental behaviors and to assess ecological risks.Much stronger sorption of OTC was observed on montmorillonite than that on kaolinite,which might be resulted from the larger cation exc... |
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| Keywords: | oxytetracycline (OTC) zinc complexation bridge clay |
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