Adsorptive removal of methylene blue dye from soapnut shell & pineapple waste derived activated carbon

Abstract

The methylene blue (MB) adsorption from the aqueous solution on activated charcoal from soapnut shell & pineapple waste were studied in batch mode. The influence of a major parameter determining the efficiency of the process, such as the initial concentration, the adsorbent dose and the contact time on the removal process, was studied. Experimental studies have shown that the adsorption capacity of methylene blue increases with the increase of the adsorbent dose and decreases with the increase of the initial concentration. The equilibrium time of 120 min was observed. The considered optimal dose for removing methylene blue from aqueous solutions from soapnut shell & pineapple waste were 0.6 g & 1g respectively. The equilibrium data corresponds precisely to the Langmuir isotherm.