Estudo do equilíbrio e cinética da biossorção do pb2+ por saccharomyces cerevisiae

Química Nova

Joelma Morais Ferreira¹  Flávio Luiz Honorato Da Silva¹  Odelsia Leonor Sanchez Alsina¹  Líbia De Sousa Conrado Oliveira¹  Eliane Bezerra Cavalcanti¹  Wolia Costa Gomes¹ 

[1] ,Universidade Federal de Campina Grande Centro de Ciências e Tecnologia Unidade Acadêmica de Engenharia QuímicaCampina Grande PB ,Brasil

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

DOI  :  10.1590/S0100-40422007000500026

来源: SciELO

【 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】

CC BY-NC   
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