Kinetics and equilibrium studies on removal of zinc(II) by untreated and anionic surfactant treated dead biomass of yeast: Batch and column mode

Equilibrium, kinetic and thermodynamic studies on the removal of U(VI) by low cost agricultural waste

“…Das et al [16] also observed an increase in sorption capacity of two yeast species for zinc (II) removal by SDS treatment.…”

Valorization of the Spent Biomass of Pleurotus mutilus Immobilized as Calcium Alginate Biobeads for Methylene Blue Biosorption

“…Mathematical models describing the behavior of a batch biosorption process operated under different experimental conditions are very useful for scale-up studies or process optimization (Das et al 2012). Simplified pseudo-first-order and pseudo-second-order kinetic models were used to fit the experimental data.…”

Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

“…In a binary system, pseudo first order model exhibited the best fit suggesting the mode of adsorption as physisorption for both Ag(I) and Zn(II) ions. Intraparticle diffusion was not the sole rate limiting process owing to the non-linear nature of the Boyd plot (figure not shown) which suggested that the biosorption process was also governed by film diffusion (Das et al, 2012).…”

“…The Gibbs free energy, enthalpy and entropy, (DG, DH, DS), for the adsorption process were obtained from standard equations (Das et al, 2012).…”