REMOVAL OF LEAD FROM WASTE WATER THROUGH IRON DOPED BIOCHAR NANOCOMPOSITE

Abstract

The nanocomposite was synthesized using biochar of Eucalyptus leaves impregnated or doped with Iron by adopting co-precipitation technique. The functional groups, size, structure, morphological features and chemical composition of nanocomposite were determined by XRD, FT-IR, SEM and EDX techniques. Batch studies were conducted for removal of Pd from wastewater by studying the effect of different equilibrium parameters like shaking speed, contact time, pH, temperature, adsorbent dose and different concentrations of Pd. Maximum removal efficiency of Pd was attained at 250 rpm by using 0.2 g of adsorbent dose with 200 mg/L initial adsorbate concentration for 150 minutes at room temperature and neutral pH. The adsorption isotherms and kinetics were applied to batch studies data and found that fit to Freundlich and pseudo first order and pseudo second order models. Hence, the results of the current study illustrated that the synthesized nanocomposite is an efficient adsorbent for removal of Pd from the waste water and can be employed as environment friendly at industrial scale