Equilibrium and kinetic study of pb2+ biosorption by saccharomyces cerevisiae

Química Nova

Gomes, Wolia Costa¹  Universidade Federal de Campina Grande, Campina Grande, Brasil¹  Oliveira, Líbia de Sousa Conrado¹  Ferreira, Joelma Morais¹  Alsina, Odelsia Leonor Sanchez¹  Cavalcanti, Eliane Bezerra¹  Silva, Flávio Luiz Honorato da¹ 

关键词: heavy metal;    experimental design;    Langmuir isotherm.;   

DOI  :  10.1590/S0100-40422007000500026

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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.

【 授权许可】

Unknown