Assessment of By-Product from <i>Botryosphaeria rhodina</i> MAMB-05 as an Effective Biosorbent of Pb(II)
Antonio J. Muñoz,
Francisco Espínola,
Encarnación Ruiz,
Aneli M. Barbosa-Dekker,
Robert F. H. Dekker,
Eulogio Castro
Affiliations
Antonio J. Muñoz
Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
Francisco Espínola
Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
Encarnación Ruiz
Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
Aneli M. Barbosa-Dekker
Departamento de Química, CCE – Universidade Estadual de Londrina, Londrina – Paraná CEP: 86051-990, Brazil
Robert F. H. Dekker
Programa de Pós Graduação em Engenharia Ambiental, Universidade Tecnológica Federal do Paraná, Câmpus Londrina, Londrina – Paraná CEP: 86036-370, Brazil
Eulogio Castro
Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
In this work, two types of biomass preparations (VMSM and M3) from the filamentous fungus Botryosphaeria rhodina MAMB-05, which were previously used in a process of production of β-glucan, were assessed as biosorbents of lead. The operating conditions, optimized through response surface methodology and experimental design, were shown to be pH 5.29 and a biosorbent dose of 0.23 g/L for the VMSM biomass type; and pH 5.06 and a dose of biosorbent of 0.60 g/L for the M3 biomass type, at a constant temperature of 27 °C. Fourier transform-infrared spectroscopy analyzed the presence of functional groups on the biomass surface. In addition to give an extra value to the by-product biomass, the VMSM-type from B. rhodina MAMB-05 showed an excellent lead biosorption capacity (qm) with a value of 403.4 mg/g for the Langmuir model, comparing favorably with literature results, while the M3 subtype biomass showed a value of 96.05 mg/g.
