BIOSORPTION OF ORGANIC AND INORGANIC POLLUTANTS FROM SIMULATED WASTEWATER BY USING EQUISETUM HORSETAIL

Through easy and environmental friendly processes, equisetum horsetail was used to produce biosorbent materials. This equisetum based biosorbent was investigated for the removal of Hg2+ and furfural from simulated waste water using granule equisetum horsetail. Many isotherm models were used for single component and binary system. Langmuir model gave the best fitting for the single system (R2 Fu= 0.9946 and R2Hg2+= 0.9935), while the binary system was fitted successfully with extended Langmuir model (R2 Fu = 0.9977and R2Hg2+ = 0.9969). For kinetic study, Pseudo-first order, pseudo-second order, intra-particle diffusion and Elovich were chosen. From the results, the pseudo-second order model was well fitted for Hg2+ and furfural (R2 Fu = 0.9942 and R2Hg2+ = 0.9910). The biosorption thermodynamic indicated that the biosorption of furfural and Hg2+ontobiosorbent was exothermic reaction. Desorption of Hg2+ and furfural from simulated wastewater was obtained when using 0.1MNaOH and HCl.