EQUILIBRIUM AND KINETIC STUDIES OF BIOSORPTION OF REACTIVEORANGE 13 FROM AQUEOUS SOLUTION BY DEAD BIOMASS OF RHIZOPUSARRHIZUS
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 5, Issue 10
Abstract
The equilibrium and kinetics of the biosorption of Reactive Orange 13from aqueous solution were investigatedusing dead biomass of Rhizopus arrhizus in a batch system. Biosorption equilibrium was established in about180min. The sorption data obtained at pH 2.0 conformed well to the Langmuir isotherm model. The biosorptiondata of Reactive Orange 13 were analyzed using the pseudo-first order, the pseudo-second order, Elovich kineticsmodels as well as intra-particular rate diffusion and liquid film diffusion models. The pseudo-second-orderequation was the most appropriate equation to predict the biosorption kinetics. The reusability of the biosorbentwas tested in five consecutive adsorption–desorption cycles and the regeneration efficiency was above 95%. TheXRD, BET, SEM and FITR analyses helped to elucidate the mechanism of biosorption. From the practicalviewpoint, the abundant and inexpensive dead fungal biomass could be used as an effective, low cost and ecofriendlybiosorbent for the removal of Reactive Orange 13from the aqueous solution.
Authors and Affiliations
Sukhada Saraf
Keywords
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- EP ID EP128674
- DOI 10.5281/zenodo.160876
- Views 44
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