KINETIC, THERMODYNAMIC AND EQUILIBRIUM STUDIES
OF RHODAMINE B ADSORPTION BY LOW COST
BIOSORBENT SUGAR CANE BAGASSE
Z. M. Abou-Gamra, H. A.A. Medien.
Abstract
The present study deals with the feasibility of removal of basic dye Rhodamine-B (RB) from aqueous solutions by using a low cost natural
adsorbent lignin. Batch adsorption studies were conducted to evaluate various experimental parameters such as, contact time, initial
concentration of the adsorbate, adsorbent dosage, pH and temperature. Pseudo first order and pseudo second order were used to fit the
experimental data. Pseudo second order kinetics described of adsorption reasonably well. The experimental isotherms data were also
modelled by the Langmuir and Freundlich equation of adsorption. Equilibrium data fitted well with the Freundlich isotherm. Lignin was
shown to be a promising material for adsorption of RB from aqueous solutions.
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