| Ca-基膨润土制备重金属废水吸附剂的研究 |
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| 引用本文： | 杨华明,张华,张向超,杨富贵.Ca-基膨润土制备重金属废水吸附剂的研究[J].金属矿山,2004(9):57-59. |
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| 作者姓名： | 杨华明 张华 张向超 杨富贵 |
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| 作者单位： | 1. 中南大学
2. 山东理工大学 |
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| 摘 要： | 膨润土因其特殊的晶体结构而具有良好的吸附能力、阳离子交换能力和吸水膨胀能力等性能。近年来，随着人们对其结构和理化性能的进一步了解，膨润土的高层次开发已成为非金属矿物材料的研究热点。文中对钙基膨润土进行了改性处理，并着重探讨了Ca-基膨润土对重金属废水的吸附，并对含Cr^6 和Cu^2 的模拟废水进行了吸附试验，同时比较了钠基土和有机土的吸附效果。进一步探讨了吸附时间及吸附液pH值对改性膨润土吸附Cr^6 的影响。
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| 关 键 词： | Ca-基膨润土 晶体结构 吸附能力 阳离子交换能力 吸水膨胀能力 重金属废水吸附剂 |
| 修稿时间： | 2004年6月20日 |
Investigation on Preparation of Ca-bentonite Sorbent for Heavy Metals Wastewater Treatment |
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| Yang Huaming,Zhang Hua,Zhang Xiangchao.Investigation on Preparation of Ca-bentonite Sorbent for Heavy Metals Wastewater Treatment[J].Metal Mine,2004(9):57-59. |
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| Authors: | Yang Huaming Zhang Hua Zhang Xiangchao |
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| Affiliation: | Yang Huaming Zhang Hua Zhang Xiangchao(Central South University) Yang Fugui(Shandong University of Tecnology) |
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| Abstract: | With special crystal structure, bentonite possesses good abilities of adsorption, cation exchange and swelling by water absorption. In recent years, with the people's further understanding of its structural and physico-chemical properties, high-level exploitation of bentonite has become a heat point in the research of nonmentallic mineral materials. In this study,Ca-bentonite was modified and the adsorption of Ca-bentonite on heavy metals wastewater was discussed. Adsorption test was made with simulated wastewater containing Cr 6+ and Cu 2+ , the adsorption results of sodium bentonite and organic bentonite were compared and the effect of adsorption time and the pH value of the solution of the modified bentonite on Cr 6+ adsorption was further investigated. |
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| Keywords: | Bentonite Modification Sorbent Heavy metals |
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