REMOVAL OF REMAZOL BRILLANT BLUE R FROM AQUEOUS SOLUTION USING PEANUT SHELL PRETREATED WITH HCL BY BATCH AND COLUMN ADSORPTION

In this study, peanut shell pretreated with HCl was used as an adsorbent for the removal of remazol brilliant blue R from aqueous solution by batch and column adsorption. Effects of initial dye concentration (between 10 and 150 ppm), temperature (between 20 and 60 degrees C), and pH (between 3 and 9) on batch adsorption were studied as a function of contact time. While the amount of the dye removed by peanut shell was increasing with increasing contact time, initial dye concentration, solution temperature, it decreased with increasing solution pH. Effects of the initial concentration and flow rate of dye solution were investigated on column adsorption. The maximum dye removal was determined as 94.07% and 99.90% for batch and column process under all experimental conditions, respectively. Moreover, adsorption isotherm obeyed the Langmuir and the Freundlich models. Adsorption kinetics was the best fit with the pseudo-second order model.