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Ca-基膨润土制备重金属废水吸附剂的研究
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, 0(9): 57-59
作者姓名:杨华明  张华  张向超  杨富贵
作者单位:中南大学;山东理工大学
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。

关 键 词:膨润土  改性  吸附剂  重金属
修稿时间:2004-06-20

Investigation on Preparation of Ca-bentonite Sorbent for Heavy Metals Wastewater Treatment
Yang Huaming Zhang Hua Zhang Xiangchao. Investigation on Preparation of Ca-bentonite Sorbent for Heavy Metals Wastewater Treatment[J]. Metal Mine, 2004, 0(9): 57-59
Authors:Yang Huaming Zhang Hua Zhang Xiangchao
Affiliation:Yang Huaming Zhang Hua Zhang Xiangchao(Central South University) Yang Fugui(Shandong University of Tecnology)
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.
Keywords:Bentonite   Modification   Sorbent   Heavy metals
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