:: Journal of International Environmental Application & Science ::

Year 2008, Volume III (Issue I)

Journal of International Environmental Application and Science , Vol. 3, No. 4 (2008), 37-42


Cadmium removal using activated pine bark

M. Emin Argun, Sukru Dursun

Selcuk University, Engineering & Architecture Faculty, Department of Environmental Engineering, 42003 Konya, Turkey


Abstract: In this study we activated pine barks (Pinus nigra) by using NaOH and this activated material used for the removal of Cd(II) ions from aqueous solutions. Chemical activation and its enhancement effect of adsorption capacity for treatment process have been investigated in this article. FT-IR, zeta potential and surface area analyses were examined for the determination of surface properties changes after activation. Maximum adsorption capacity was 50 mg g-1 at pH 7 and with a 240-min contact time (for 35 mg L-1 initial concentration and a 2.5 g L-1 solid-to-liquid ratio) These modification processes also decreased soluble organic compounds from pine barks leading to increase in chemical oxygen demand of water. Adsorption capacities of adsorbents increased quietly as a result of modification according increase of adsorbent surface activity.
Keywords: Activation, cadmium, bark, removal, NaOH