Cadmium and zinc removal from aqueous solutions by Bacillus jeotgali:: pH, salinity and temperature effects

被引：101

作者：

Green-Ruiz, Carlos ^{[1
]}

Rodriguez-Tirado, Victor ^{[2
]}

Gomez-Gil, Bruno ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Mazatlan 82000, Sinaloa, Mexico

[2] Univ Politecn Sinaloa, Mazatlan 82000, Sinaloa, Mexico

[3] CIAD Mazatlan Unidad Acuacultura, Mazatlan 82000, Sinaloa, Mexico

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 09期

关键词：

biosorption; bacteria; bioremediation; isotherms; metal;

D O I：

10.1016/j.biortech.2007.06.047

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Effects of pH, salinity and temperature on biosorption of Cd and Zn by bacteria Bacillus jeotgali strain U3 were evaluated in batch experiments. Traditional and Subsequent Addition Methods (SAM) were used to carry out the bioassays. Sorption of metals was higher when pH or temperature was increased, or when salinity was reduced. The Langmuir isotherm better fit the biosorption data for Cd, while the Freundlich model fitted better for Zn biosorption. A comparison with similar biosorbents suggested that Bacillus jeotgali strain U3 could be considered a good biosorbent for Cd and Zn recovery. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3864 / 3870

页数：7

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