Adsorption of remazol brilliant pink (Red 3BS) dye onto Leucaena Leucocephala Shell based activated carbon: Batch study

Abstract

Adsorption of remazol brilliant pink (Red 3BS) dye from aqueous solution onto activated LLS adsorbent was investigated in a batch study. Adsorption isotherm and kinetics study were carried out by considering the effects of various parameter such as adsorbent dosage (0.2 g - 2.0 g) initial concentration (25mg/L-125mg/L) and contact time (10 min - 180 min), also effect of solution pH (2 - 12). Equilibrium data were fitted to Langmuir and Freundlich isotherm models. The equilibrium data were best described by Langmuir isotherm with the maximum adsorption capacity 2.945 mg/g. Furthermore, the kinetic model applied to pseudo-second-order, which has the best fitted data. The result of this study showed the potential of low cost of LLS agricultural waste material to adsorb the reactive dye pollutant containing in wastewater system.