| 天祝褐煤对镉离子溶液吸附性能 |
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| 引用本文： | 郝艳玲,范福海.天祝褐煤对镉离子溶液吸附性能[J].洁净煤技术,2006,12(4):59-61. |
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| 作者姓名： | 郝艳玲 范福海 |
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| 作者单位： | 兰州交通大学化学与生物工程学院,甘肃,兰州,730070;兰州交通大学化学与生物工程学院,甘肃,兰州,730070 |
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| 摘 要： | 以甘肃天祝褐煤作吸附剂,对常温下镉离子溶液进行了吸附实验研究,探讨了吸附动力学、吸附平衡、吸附机理和影响吸附效果的因素。结果表明,褐煤对镉离子的吸附速率符合一级反应动力学,吸附平衡遵守Freundlich公式,介质酸度对吸附效果有显著的影响,pH为4～7时吸附率可达95%以上。
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| 关 键 词： | 褐煤 吸附 镉离子 |
| 文章编号： | 1006-6772（2006）04-0059-03 |
| 收稿时间： | 2006-06-01 |
| 修稿时间： | 2006年6月1日 |
Study on the adsorption characteristics of Tianzhu lignite for admium-ion solution |
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| Hao Yan-ling,Fan Fu-hai.Study on the adsorption characteristics of Tianzhu lignite for admium-ion solution[J].Clean Coal Technology,2006,12(4):59-61. |
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| Authors: | Hao Yan-ling Fan Fu-hai |
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| Affiliation: | School of Chemical and Biological Engineering, Lanzhou Communication University, Lanzhou 730070,China |
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| Abstract: | A test for the adsorption of cadmium-ion solution with Tianzhu lignite at normal temperature was carried out. The adsorption kinetics, the adsorption equilibrium, the effect elements and the mechanism of adsorption were studied. The results indicate that the adsorption rate of cadmium-ion on lignite is first-order kinetic, the adsorption models exhibits Freundlich behavior, PH is the main factor affecting the adsorption and the disposal rate could be 97% when pH was about 4-7. |
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| Keywords: | lignitel adsorption cadmium-ion |
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