| 十三陵水库的底泥对铬离子的吸附和解吸 |
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| 引用本文： | 任仁 张宏志. 十三陵水库的底泥对铬离子的吸附和解吸[J]. 北京工业大学学报, 1992, 18(3): 78-82 |
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| 作者姓名： | 任仁 张宏志 |
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| 作者单位： | 北京工业大学化学与环境工程学系(任仁，张宏志，薛锋，金秋梅，王洁，王华)，北京工业大学化学与环境工程学系(张义泉) |
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| 摘 要： | 用十三陵水库的底泥进行对Cr~(3+)和Cr_2O_7~(2-)离子的吸附及解吸的实验,得出结论:Cr_2O_7~(2-)离子基本上不被底泥吸附,而Cr~(3+)离子被强烈吸附,并且难于解吸。
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| 关 键 词： | 吸附 解吸 比色分析 铬 底泥 |
Adsorption and Desorption of Cr(Ⅲ) and (Ⅵ) by Substrate Sludge of Ming Tombs Reservoir |
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| Ren Ren Zhang Hongzhi Xue Feng Jin Qioumei Wang Jie Wang Hua Zhang Yiquan. Adsorption and Desorption of Cr(Ⅲ) and (Ⅵ) by Substrate Sludge of Ming Tombs Reservoir[J]. Journal of Beijing Polytechnic University, 1992, 18(3): 78-82 |
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| Authors: | Ren Ren Zhang Hongzhi Xue Feng Jin Qioumei Wang Jie Wang Hua Zhang Yiquan |
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| Affiliation: | Department of Chemistry and Environmental Engineering |
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| Abstract: | The authors collected samples of the substrate sludge from different places of Ming Tombs Reservoir (in the suburb of Beijing),and tested their adsorption and desorption to Cr (Ⅲ) (Cr3+) and Cr (Ⅵ) (Cr2O72-) separately by means of colorimetric analysis.The results show that the substrate sludge has nearly no adsorbing ability to Cr2O72-,the adsorption rate is only 1~3%;On the contrary,the adsorbing ability to Cr3+ is exceedingly strong,the adsorption rate is 35~ 66%,and the desorption rate is only 1 ~ 6%.This reveals that the adsorbed Cr + could hardly be desorbed. |
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| Keywords: | adsorption desorption colorimetric analysis chromium substrate sludge |
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