Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4105
Title: Equilibrium, thermodynamic and kinetic studies for the biosorption of aqueous lead(II), cadmium(II) and nickel(II) ions on Spirulina platensis
Authors: Şeker, Ayşegül
Shahwan, Talal
Eroğlu, Ahmet Emin
Yılmaz, Sinan
Demirel, Zeliha
Conk Dalay, Meltem
Keywords: Spirulina platensis
Biosorption
Heavy metal
Sorption isotherm
Publisher: Elsevier Ltd.
Source: Şeker, A., Shahwan, T., Eroğlu, Ahmet E., Yılmaz, S., Demirel, Z., & Conk Dalay, M. (2008). Equilibrium, thermodynamic and kinetic studies for the biosorption of aqueous lead(II), cadmium(II) and nickel(II) ions on Spirulina platensis. Journal of Hazardous Materials, 15(1–3), 973–980. doi:10.1016/j.jhazmat.2007.11.007
Abstract: The biosorption of lead(II), cadmium(II) and nickel(II) ions from aqueous solution by Spirulina platensis was studied as a function of time, concentration, temperature, repetitive reactivity, and ionic competition. The kinetic results obeyed well the pseudo second-order model. Freundlich, Dubinin Radushkevich and Temkin isotherm models were applied in describing the equilibrium partition of the ions. Freundlich isotherm was applied to describe the design of a single-stage batch sorption system. According to the thermodynamic parameters such as ΔG°, ΔH°and ΔS° calculated, the sorption process was endothermic and largely driven towards the products. Sorption activities in a three metal ion system were studied which indicated that there is a relative selectivity of the biosorbent towards Pb2+ ions. The measurements of the repetitive reusability of S. platensis indicated a large capacity towards the three metal ions.
URI: http://doi.org/10.1016/j.jhazmat.2007.11.007
http://hdl.handle.net/11147/4105
ISSN: 0304-3894
0304-3894
Appears in Collections:Chemistry / Kimya
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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