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Immobilized chitosan as a selective absorbent for the nickel removal in water sample 被引量：3

Immobilized chitosan as a selective absorbent for the nickel removal in water sample
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摘要 Method for preparation of chitosan immobilized on silica gel(CTS silica) was described. The CTS silica was used as absorbent for the absorption of nickel in water. The results showed that this absorbent had relatively high selectivity and strong affinity to nickel. The maximum absorption capacity for nickel can reach 667 mg/g of chitosan. Factors that affect the absorption capacity, such as pH, ion strength and the presence of calcium, EDTA and the mechanism of absorption were discussed in detail. The absorbent can be regenerated with acid and reused for several times. The recovery rate for nickel can reach 99 99%. This absorbent filled in a column can be used in nickel removal from wastewater and drinking water. Method for preparation of chitosan immobilized on silica gel(CTS silica) was described. The CTS silica was used as absorbent for the absorption of nickel in water. The results showed that this absorbent had relatively high selectivity and strong affinity to nickel. The maximum absorption capacity for nickel can reach 667 mg/g of chitosan. Factors that affect the absorption capacity, such as pH, ion strength and the presence of calcium, EDTA and the mechanism of absorption were discussed in detail. The absorbent can be regenerated with acid and reused for several times. The recovery rate for nickel can reach 99 99%. This absorbent filled in a column can be used in nickel removal from wastewater and drinking water.
作者 WU Jian min, WANG Yong yao (Department of Chemistry, College of Science, Zhejiang University, Hangzhou 310027, China. )
出处 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2003年第5期633-638,共6页 环境科学学报（英文版）
关键词 immobilized chitosan NICKEL wastewater treatment immobilized chitosan nickel wastewater treatment
分类号 X703 [环境科学与工程—环境工程]
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参考文献14

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Journal of Environmental Sciences
2003年 第5期

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