Biosorption of rhodamine B using a low-cost biosorbent prepared from inactivated Aspergillus oryzae cells : kinetic, equilibrium and thermodynamic studies
ARTIGO
Inglês
This study aimed to investigate the kinetics, isotherms, and thermodynamics of biosorption of the cationic dye rhodamine B by a low-cost biosorbent prepared from Aspergillus oryzae cells. Culture medium composition (mineral salts, nitrogen source, and carbon source) influenced removal efficiency,...
This study aimed to investigate the kinetics, isotherms, and thermodynamics of biosorption of the cationic dye rhodamine B by a low-cost biosorbent prepared from Aspergillus oryzae cells. Culture medium composition (mineral salts, nitrogen source, and carbon source) influenced removal efficiency, and dye removal increased with increasing biosorbent concentrations until a plateau was reached at 10 g L−1. Temperature and dye concentration were directly related to removal, and the highest removal efficiency was obtained at 40 °C and 200 mg L−1 of dye. The adsorption kinetics was best fitted to a pseudo-second-order model, and equilibrium data were well described by the Freundlich equation. Thermodynamic analysis indicated that the biosorption of rhodamine B by A. oryzae cells is physical in nature, spontaneous, and more favorable at higher temperatures and dye concentrations. Overall, the results suggest that inactivated A. oryzae biomass is a promising biosorbent for the removal of cationic dyes from wastewater
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE MINAS GERAIS - FAPEMIG
APQ01976-13
Fechado
Biosorption of rhodamine B using a low-cost biosorbent prepared from inactivated Aspergillus oryzae cells : kinetic, equilibrium and thermodynamic studies
Biosorption of rhodamine B using a low-cost biosorbent prepared from inactivated Aspergillus oryzae cells : kinetic, equilibrium and thermodynamic studies
Fontes
Water air and soil pollution Vol. 231, no. 5 (May, 2020), n. art. 242 |