Immobilized chitosan as a selective absorbent for the nickel removal in water sample

被引：0
|
作者：
Wu, JM [1 ]
Wang, YY [1 ]
机构：
[1] Zhejiang Univ, Coll Sci, Dept Chem, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2003年 / 15卷 / 05期
关键词：
immobilized chitosan; nickel; wastewater treatment;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
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.
引用
收藏
页码：633 / 638
页数：6
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