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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/10787

Title: Biosorption of Pb(II) onto Cocos Nucifera Shell and Moringa Oleifera Seeds
Authors: Acheampong, Mike A.
Ansa, Ebenezer D. O.
Woode, Martin Y.
Awuah, Esi
Keywords: Agricultural waste
Biosorption
Kinetics
Mathematical modeling
Metal removal
Sorption
Issue Date: 2015
Publisher: Chemical Engineering Communications
Citation: Mike A. Acheampong, Ebenezer D. O. Ansa, Martin Y. Woode & Esi Awuah (2015) Biosorption of Pb(II) onto Cocos Nucifera Shell and Moringa Oleifera Seeds, Chemical Engineering Communications, 202:7, 946-953, DOI: 10.1080/00986445.2014.880424
Abstract: The biosorption properties of Cocos nucifera shell and Moringa oleifera seeds for Pb(II) were investigated under batch mode. The optimum pH values obtained for the removal of Pb(II) by the Cocos nucifera shell and the Moringa oleifera seeds were 5 and 2, respectively. The equilibrium biosorption capacities obtained were 2.3 mgg 1 (Moringa oleifera seeds) and 1.6 mg g 1 (Cocos nucifera shell). The Freundlich isotherm model described the removal of Pb(II) by the biosorbents better than the Langmuir model. The Cocos nucifera shell sorbed 83.34% of the Pb(II) ions in 30 min, while 94.03% was sorbed by the Moringa oleifera seeds in the same time. The results indicated a fast kinetics for Pb(II) sorption by the biosorbents investigated. The biosorption of Pb(II) onto Cocos nucifera shell and Moringa oleifera seeds followed the pseudo second-order kinetics with R2 values of 0.9997 and 0.9999, respectively. The second-order rate constant (k2) obtained were 0.205 g mg 1 min 1 (Cocos nucifera shell) and 0.067 g mg 1 min 1 (Moringa oleifera seeds). The results indicate that intraparticle diffusion controls the rate of biosorption in this study. This study shows that Cocos nucifera shell and Moringa oleifera seeds can be important low-cost biosorbents for Pb(II) ions.
Description: An article published by Mike A. Acheampong, Ebenezer D. O. Ansa, Martin Y. Woode & Esi Awuah (2015) Biosorption of Pb(II) onto Cocos Nucifera Shell and Moringa Oleifera Seeds, Chemical Engineering Communications, 202:7, 946-953, DOI: 10.1080/00986445.2014.880424
URI: http://hdl.handle.net/123456789/10787
Appears in Collections:College of Engineering

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