ADSORPTION OF HUMIC ACID FROM AQUEOUS SOLUTION ONTO FE3O4 COATED CARBON: KINETICS STUDY

The main objective of this study is to investigate the kinetics sorption of humic acid (HA) from aqueous solution onto Fe3O4 coated carbon. Batch adsorption experiments were carried out using HA solution as an adsorbate under variety of concentration in the range of 50-200 mg/L. The experimental results indicate that, the percentage of HA adsorption decreases with an increase in the HA concentrations. The kinetic experimental data proportionally correlated with the pseudo-second-order kinetic model with a rate constant in the range of 0.042-0.085g mg-1 min-1.