Title: Adsorption of copper (II) ions to peanut hulls and Pinus brutia sawdust

Authors: H. Duygu Ozsoy, Halil Kumbur, Zafer Ozer

Addresses: Engineering Faculty, Department of Environmental Engineering, 33360, Mersin University, Turkey. ' Engineering Faculty, Department of Environmental Engineering, 33360, Mersin University, Turkey. ' Engineering Faculty, Department of Environmental Engineering, 33360, Mersin University, Turkey

Abstract: Adsorption of copper (II) ions to untreated peanut hulls and untreated Pinus brutia sawdust was investigated as a function of the contact time, amount of adsorbents, initial pH, temperature and initial metal ion concentration. Adsorption efficiency was increased by increasing contact time, amount of adsorbents and decreasing initial metal ion concentration. The optimum adsorption conditions were obtained at pH 5.0. Experimental results indicate that peanut hulls are a more effective adsorbent than Pinus brutia sawdust for the removal of Cu (II) from aqueous solutions. The isothermal data of peanut hulls could be well described by the Langmuir and Freundlich equations.

Keywords: adsorption efficiency; copper (II) ions; peanut hulls; Pinus brutia sawdust; adsorbents; copper removal; aqueous solutions; heavy metals; environmental pollution; wastewater treatment.

DOI: 10.1504/IJEP.2007.015669

International Journal of Environment and Pollution, 2007 Vol.31 No.1/2, pp.125 - 134

Available online: 07 Nov 2007 *

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