Biosorption of textile dye by dead fungal biomass Investigation of the usability of L. salmonicolor as a biosorbent Biosorption behavior of fungal biomass Figure A. Effect of initial dye concentration for biosorption of RMB onto biomass of L. salmonicolor
Purpose:The purpose of this study is to investigate the usage of Lactarius salmonicolor biomass as a biosorbent for textile dye removal. Optimization of various parameters were examined in batch biosorption studies, to identify the biosorption mechanism some physicochemical parameters were also calculated.
Theory and Methods:L. salmonicolor was collected and prepared as a fungal biomass. pH, initial dye concentration, and temperature were optimized after characterization of biomass by FTIR and SEM. Isotherm parameters as Langmuir, Freundlich, Temkin and Dubinin-Radushkevich were evaluated. To understand the mechanism of the biosorption kinetic and thermodynamic parameters were also calculated. Finally, biosorption-desorption studies were also performed to evaluate the reuse the biosorbent.
Results:Potential functional groups were identified by FTIR and surface morphology of the biosorbent was clearly understand by SEM images. Optimum pH was observed as pH 3.0. The maximum biosorption capacity (qe) and percentage of removal (R%) were found as 126.57 mg/g and 99.82 %, respectively. The Freundlich isotherm model was well fitted and the pseudo-second order kinetic model was the best suitable for this process. The biosorption process was endothermic and occured spountenous.
Conclusion:L. salmonicolor, an edible mushroom, was prepared and used as a biosorbent for textile dye biosorption. Potential usage of this dead fungal biomass can be used as an in-expensive and reusable biosorbent for Remazol Marine Blue textile dye.