Adsorption of 2,4-Dichlorophenoxyacetic Acid on Peanut Shells: Effect of Initial Concentration

Pesticides are an integral part of modern agriculture in most countries as a tool for controlling pests. In the last few decades, increasing use of pesticides is polluting environment and water resources day by day. Adsorption is one of the most used method for removal of these pollutions due to the simple ease of processing, low cost and effective even in very low concentrations. Active carbon is very efficient adsorbent for removing pesticides from aqueous solutions thanks to its high surface area and porosity. However, the high cost of active carbon can be sometimes restricted for several purposes. In recent years, research on the production of low cost adsorbents alternative to commercially available activated carbon has increased. Therefore, in this work, peanut shells were used as an adsorbent for removing 2,4-dichlorophenoxyacetic acid (2,4-D) from aqueous solutions. The adsorption performance was studied depending on initial concentrations of 2,4-D solutions.

Keywords:

Pesticide Adsorption, Peanut shell,

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[1]. Z. Al-Qodah, A.T. Shawaqfeh, and W.K. Lafi, “Adsorption of pesticides from aqueous solutions using oil shale ash,” Desalination, vol. 208, pp. 294–305, 2007.
[2]. V.K. Gupta, I. Ali, Suhas, and V.K. Saini, “Adsorption of 2,4-D and carbofuran esticides using fertilizer and steel industry wastes,” Journal of Colloidal and Interface Science, vol. 299, pp. 556–563, 2006.
[3]. M. Khoshnood, and S. Azizian, “Adsorption of 2,4-dichlorophenoxyacetic acid pesticide by graphitic carbon nanostructures prepared from biomasses,” Journal of Industrial and Engineering Chemistry, vol. 18, pp. 1796–1800, 2012.
[4]. J. Gao, G. Zhao, M. Liu, D. Li, “Mechanism of Enhanced Electrochemical Oxidation of 2,4-dichlorophenoxyacetic Acid with in situ Microwave Activated Boron-doped Diamond and Platinum Anodes,” Journal of Physical Chemistry A, vol. 113, pp. 10466-10473, 2009.
[5]. M. Alvarez., T. Lo ́ pez, J.A. Odriozola, M.A. Centeno, M.I. Domı ́nguez, M. Quintana, D.H. Aguilar, R.D. Gonza ́lez, “2,4-Dichlorophenoxyacetic acid (2,4-D) photodegradation using an Mn+/ZrO2 photocatalyst: XPS, UV– vis, XRD characterization,” Applied Catalysis B, vol. 73, pp. 34-41, 2007.
[6]. J.L. Acero, F. Javier Benitez, F.J. Real, C. Maya, “Oxidation of Acetamide Herbicides in Natural Waters by Ozone and by the Combination of Ozone/Hydrogen Peroxide: Kinetic Study and Process Modeling,” Industrial and Engineering Chemistry Research, vol. 42, pp. 5762-5769, 2003.
[7]. H. El Bakouri, J. Usero, J. Morillo, R. Rojas, A. Ouassini, “Drin pesticides removal from aqueous solutions using acid-treated date stones,” Bioresource Technology, vol. 100, pp. 2676-2684 2009.
[8]. H. El Bakouri, J. Usero, J. Morillo, A. Ouassini, “Adsorptive features of acid-treated olive stones for drin pesticides: Equilibrium, kinetic and thermodynamic modeling studies,” Bioresource Technology, vol. 100, pp. 4147-4155, 2009.
[9]. W.T. Tsai., K.J. Hsien, Y.M. Chang, C.C. Lo, “Removal of herbicide paraquat from an aqueous solution by adsorption onto spent and treated diatomaceous earth,” Bioresource Technology, vol. 96, pp. 657-663, 2005.
[10]. N. Ayar., B. Bilgin, G. Atun, “Kinetics and equilibrium studies of the herbicide 2,4-dichlorophenoxyacetic acid adsorption on bituminous shale,” Chemical Engineering Journal, vol. 138, pp. 239-248, 2008.
[11]. Y. Xi, M. Mallavarapu, R. Naidu, “Adsorption of the herbicide 2,4-D on organo-palygorskite,” Applied Clay Science, vol. 49, pp. 255-261, 2010.