| 硫酸盐还原菌分泌胞外多聚物吸附Cu2+的特性 |
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| 作者姓名： | Fang D Zhang RC Zhao YG |
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| 作者单位： | 1. 海洋环境与生态教育部重点实验室,山东青岛266100;中国海洋大学环境科学与工程学院,山东青岛266100
2. 中国海洋大学环境科学与工程学院,山东青岛,266100 |
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| 基金项目： | 国家自然科学基金项目(20707024); 国际(瑞典)科学基金项目(F/4737-1); 山东省自然科学基金项目(ZR2009BQ022)资助 |
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| 摘 要： | 为探讨硫酸盐还原菌胞外多聚物(EPS)吸附Cu2+的特性,采用热力学平衡实验研究了EPS对Cu2+的吸附行为,并通过红外光谱(FTIR)和带能谱仪的扫描电镜(SEM-EDS)分析EPS吸附Cu2+前后官能团以及元素组成的变化来研究EPS吸附Cu2+的机理.结果表明,硫酸盐还原菌EPS对Cu2+的吸附平衡能较好地用Fre...
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| 关 键 词： | 生物吸附 硫酸盐还原菌 胞外多聚物 Cu2+ 废水处理 |
Biosorption properties of extracellular polymeric substances produced by sulfate-reducing bacteria towards Cu(II) ion |
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| Fang D,Zhang RC,Zhao YG.Biosorption properties of extracellular polymeric substances produced by sulfate-reducing bacteria towards Cu(II) ion[J].Spectroscopy and Spectral Analysis,2011,31(10):2819-2823. |
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| Authors: | Fang Di Zhang Rui-Chang Zhao Yang-Guo |
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| Institution: | FANG Di1,2*,ZHANG Rui-chang2,ZHAO Yang-guo1,21.Key Laboratory of Marine Environment and Ecology,Ministry of Education,Qingdao 266100,China2.School of Environmental Science and Engineering,Ocean University of China,China |
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| Abstract: | The purpose of the present study was to investigate the Cu2+ biosorption properties of extracellular polymeric substances(EPS) produced by sulfate-reducing bacteria.The composition and physicochemical characteristics of EPS were determined.The adsorption characteristics of EPS towards Cu2+ were examined using thermodynamic equilibrium equations and determined by FTIR and SEM-EDS.The EPS was shown to have a strong copper-binding capacity and the biosorption data obtained were well described by the Freundlich... |
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| Keywords: | Biosorption Sulfate-reducing bacteria Extracellular polymeric substances Cu2 Waste water treatment |
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