Sorption behaviour of copper(II), zinc(II) and nickel(II) on formaldehyde cross-linked Saccharomyces cerevisiae immobilized on pumice stone

被引：0
|
作者：
Lale, M [1 ]
Temoçin, Z [1 ]
Bag, H [1 ]
机构：
[1] Kirikkale Univ, Fen Edebiyat Fak, TR-71450 Yahsihan, Kirikkale, Turkey
来源：
FRESENIUS ENVIRONMENTAL BULLETIN | 2001年 / 10卷 / 09期
关键词：
adsorption; copper; zinc; nickel; immobilization; pumice stone;
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：
The adsorption of Cu, Zn and Ni on to formaldehyde cross-linked Saccharomyces cerevisiae immobilized on pumice stone was investigated. Maximum adsorption was occurred at pH 6 for all elements studied. The effect of mixing time and the initial concentration of metal ion on the adsorption of metal ions were also investigated. 1 mol l(-1) of HCl, KCl (pH 2) and NaCl (pH 2) solutions were tested for desorption and 1 mol l(-1) of KCl (pH 2) solution was found to be appropriate for the desorption of all metals studied. The desorption was 89.2% for Cu, 89.8% for Zn and 87.0 for Ni. The metal capacity of immobilized cell biomass (quantity of metals accumulatad by one gram biomass) was found as 2.09, 2.24 and 3.18 mg g(-1) dry cell biomass for Zn, Cu and Ni, respectively.
引用
收藏
页码：736 / 740
页数：5
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