Original Articles: 2011 Vol: 3 Issue: 5
Removal of Copper Ion from Aqueous solutions by low cost Activated Carbon from Thespesia Populnea Bark
Activated carbon was prepared from low cost material like Thespesia Populnea Bark copper adsorption from industrial waste water was studied with the aim of detoxifying industrial effluents before the safe onto land or into river. In this study, removal of copper (II) from aqueous solution by adsorption on TPC (Thespesia Populnea Bark Carbon) has been investigated in batch experiments. The effect of various parameters such as adsorbent dose, contact time, pH, agitation speed, particle size and initial copper ion concentration for the adsorption of Cu (II) on TPC was determined. The adsorption isotherms were described by means of Langmuir and Freundlich isotherm models. The rate of adsorption was found that the adsorption mechanisms in the copper / adsorbent system fallow pseudo –first- order kinetics with a significant contribution from film diffusion. The various thermodynamic parameters such as ΔG°, ΔHº, and ΔS° were calculated. The percentage removal of copper ion on to TPC was very significant.