| 细菌吸附水溶液中镍离子的研究 |
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| 引用本文： | 王学松,陈静,李园,何雯,杨英敏,缪华华,薛钧尹. 细菌吸附水溶液中镍离子的研究[J]. 淮海工学院学报, 2009, 18(4): 81-83 |
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| 作者姓名： | 王学松 陈静 李园 何雯 杨英敏 缪华华 薛钧尹 |
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| 作者单位： | 淮海工学院,化学工程学院,江苏,连云港,222005 |
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| 基金项目： | 江苏省高等学校大学生实践创新训练计划项目 |
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| 摘 要： | 通过对3种细菌去除水溶液中镍的效能进行调查,探讨了溶液pH、接触时间、离子强度等因素对镍离子去除效果的影响。结果表明,实验平衡数据较好地符合了Langmuir吸附等温式,吸附过程遵循准二级动力学模型,pH为5时吸附效果较佳,增大溶液离子强度会导致镍离子的单位吸附量降低。
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| 关 键 词： | 生物吸附 镍离子 等温线 动力学 |
Removal of Ni2+ from Aqueous Solution by the Nonliving Biomass of Bacteria |
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| WANG Xue-song,CHEN Jing,LI Yuan,HE Wen,YANG Ying-min,MIAO Hua-hua,XUE Jun-yin. Removal of Ni2+ from Aqueous Solution by the Nonliving Biomass of Bacteria[J]. Journal of Huaihai Institute of Technology:Natural Sciences Edition, 2009, 18(4): 81-83 |
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| Authors: | WANG Xue-song CHEN Jing LI Yuan HE Wen YANG Ying-min MIAO Hua-hua XUE Jun-yin |
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| Affiliation: | (School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China) |
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| Abstract: | The performance of 3 kinds of bacteria in removing Ni^2＋ from aqueous solution was investigated, and the influence of pH, contact time and ionic strength on the adsorption of nickel ions was also discussed. The experimental equilibrium data were analyzed by Langmuir and Freundlich isotherms, showing that they conformed to the Langmuir isotherm well. The nonliving biomass of three bacteria adsorbed well when pH was 5, but decreased with the increasing ionic strength. |
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| Keywords: | biosorption Ni^2＋ isotherm kinetics |
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