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Biosorption Cu (II) by the yeast Saccharomyces cerevisiae.
do Nascimento, Jéssica M; de Oliveira, Jorge Diniz; Rizzo, Andrea C L; Leite, Selma G F.
Afiliación
  • do Nascimento JM; Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil.
  • de Oliveira JD; Centro de Ciências Exatas, Naturais e Tecnológicas, Universidade Estadual da Região Tocantina do Maranhão, Imperatriz, 65901-480, Brazil.
  • Rizzo ACL; Center of Mineral Technology (CETEM/MCTI), Rio de Janeiro, 21941-909, Brazil.
  • Leite SGF; Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil.
Biotechnol Rep (Amst) ; 21: e00315, 2019 Mar.
Article en En | MEDLINE | ID: mdl-30815368
With the industrial and population advances, the generation of effluents containing heavy metals has grown a lot. In this work, the commercial biomass of the yeast Saccharomyces cerevisiae Perlage® BB were carried out as Cu (II) ion biosorbent. The influence of some variables such as metal concentration, pH range, equilibrium time and biomass concentration were evaluated. The biosorption capacity was measured by adsorption isotherms, with the Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) models. The characterization of the biomass surface were investigated by Dispersive Energy X-Ray Fluorescence Spectrometry (EDX) and Atomic Force Microscopy (AFM). The results showed that the biomass presented good biosorption efficiency. The best fit of the data was obtained with the Langmuir model, detecting the maximum biosorption capacity of 4.73 mg g-1. By the methods used in the characterization of the biomass surface, it was possible to verify the presence of the Cu (II) ion in the yeast.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Biotechnol Rep (Amst) Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Biotechnol Rep (Amst) Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos