Evaluation of the individuality of white rot macro fungus for the decolorization of synthetic dye

摘要

Introduction A biosorbent was developed by simple dried Agaricus bisporus (SDAB) and effectively used for the bio-sorption of cationic dyes, Crystal Violet and Brilliant Green. Materials and methods For the evaluation of the biosorbent system, all the batch equilibrium parameters like pH, bio-mass dose, contact time, and temperature were optimized to determine the decolorization efficiency of the biosorbent. The maximum yields of dye removal were achieved at pH 4.0 for Crystal Violet (CV) and pH 5.0 for Brilliant Green (BG), which are closer to their natural pH also. Result and discussion Equilibrium was established at 60 and 40 min for CV and BG, respectively. Pseudo first-order, pseudo second-order, and intraparticle-diffusion kinetic models were studied at different temperatures. Isotherm models such as Freundlich, Langmuir, and Dubinin-Radushkevich were also studied. Biosorption processes were successfully described by Langmuir isotherm model and the pseudo second-order kinetic model.