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

页码：736 / 740

页数：5

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