Equilibrium and kinetic study of Pb2+ biosorption by Saccharomyces cerevisiae

被引：22
|
作者：
Ferreira, Joehna Morais [1 ]
da Silva, Flavio Luiz Honorato [1 ]
Alsina, Odelsia Leonor Sanchez [1 ]
Oliveira, Libia de Sousa Conrado [1 ]
Cavalcanti, Eliane Bezerra [1 ]
Gomes, Wolia Costa [1 ]
机构：
[1] Univ Fed Campina Grande, Ctr Ciencias & Tecnol, Unidad Acad & Engn Quim, BR-58109970 Campina Grande, PB, Brazil
来源：
QUIMICA NOVA | 2007年 / 30卷 / 05期
关键词：
heavy metal; experimental design; Langmuir isotherm;
D O I：
10.1590/S0100-40422007000500026
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The biosorption, based on the use of biomass for removal of ions is distinguished as an innovative and promising technology when compared with the traditional methods. In this context, the aim of the present work is to use Saccharomyces cerevisiae as biosorbent for the retention of Pb2+ metal ions. Factorial design was used for evaluation of the process. The observed equilibrium data were well described by Langmuir and Freundlich adsorption isotherms. The maximum adsorption capacity was 1486.88 mg/g. The results indicated that Saccharomyces cerevisiae is suitable for biosorption of Pb2+ metal ions.
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收藏
页码：1188 / 1193
页数：6
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