The present work evaluated the removal of copper (ii) from aqueous solutions using turmeric powder. It was found that the adsorption of copper (ii) by turmeric powder is affected by contact time, pH, temperature, adsorbent dose. Biosorption efficiency increased with increasing contact time, pH, temperature, adsorbent dose. The equilibrium data was satisfactorily described by Freundlich isotherm model. The adsorption followed pseudo 2 order kinetics.
The result of this studies have shown that turmeric powder can be used for the sequestration of copper (ii) from aqueous solutions and may be considered for deeper studies to see if it can decrease the bioavailability of toxic metals ingested with daily food intake.