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《Metal Mine》 2004-09
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Investigation on Preparation of Ca-bentonite Sorbent for Heavy Metals Wastewater Treatment

Yang Huaming Zhang Hua Zhang Xiangchao(Central South University) Yang Fugui(Shandong University of Tecnology)  
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.
【CateGory Index】: X703
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