| 凹凸棒石粘土吸附剂去除磷酸盐的研究 |
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| 引用本文： | 谢维民,邱 非. 凹凸棒石粘土吸附剂去除磷酸盐的研究[J]. 环境科学研究, 1992, 5(4): 36-40 |
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| 作者姓名： | 谢维民 邱 非 |
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| 作者单位： | 同济大学环境工程学院 上海 200092; |
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| 摘 要： | 以天然凹凸棒石粘土为吸附剂,采用恒温振荡间歇式吸附处理方法,讨论磷酸盐去除特性。通过对粘土的热处理和表面处理,优化出加工凹凸棒石粘土为除磷吸附剂的适宜处理条件。即通过3 mol/L碱处理12h,并在300℃下灼烧2h可获得对磷酸盐的最佳处理效果。该吸附剂除磷的动力学和热力学性能可分别用扩散控制模式和稳定状态固定反应吸附等温式得到较好的描述,求得单分子层最大吸附量为8.62mg/g。
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| 关 键 词： | 凹凸棒石粘土 吸附 磷酸盐 表面处理 |
| 收稿时间： | 1991-07-18 |
Study on Phosphate Removal by Using Attapulgite |
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| Xie-Weimin and Qiu Fei. Study on Phosphate Removal by Using Attapulgite[J]. Research of Environmental Sciences, 1992, 5(4): 36-40 |
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| Authors: | Xie-Weimin and Qiu Fei |
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| Affiliation: | School of Environmental Engineering, Tongji University, Shanghai, 200092 |
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| Abstract: | In this study, the phosphate removal by using attapulgite was investigated with batch method. It was found that the optimal treatment conditions for attapulgite was 3 mol/L ( NaOH) solution, 12h shaking and 300℃ heat-treating. The dynamic and thermodynamic behavior was well represented by diffusion control model and steady-state reaction model, and the maximum of adsorption in monomolecular layer was 8. 62mg/g. |
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| Keywords: | Attapulgite Adsorption Phosphate Surface treatment |
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