Calcined Eggshell for the Removal of Victoria Blue R Dye from Wastewater Medium by Adsorption

Abstract

In this study, the use of calcined eggshell (CE) as an adsorbent in removing Victoria Blue R(VBR) dyestuff from the solution medium was investigated. For this purpose, pH, interaction time,adsorbate concentration, amount of adsorbent, and salt effect parameters were studied to determine theappropriate adsorption conditions. The highest adsorption yield was obtained at pH 2, 2.0 g/L adsorbent,and a stirring time of 5 minutes. 97% of the dye was removed under optimum adsorption conditions. Theresults obtained from the experimental studies showed that the adsorption mechanism is compatible withthe pseudo-second-order kinetic model and the Langmuir isotherm model. SEM and IR analysis wereperformed for the characterization of CE.