Utilisation of native, heat and acid-treated microalgae Chlamydomonas reinhardtii preparations for biosorption of Cr(VI) ions

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dc.contributor.authorArica, M. Yakup
dc.contributor.authorTüzün, İlhami
dc.contributor.authorYalçın, Emine
dc.contributor.authorİnce, Özlem
dc.contributor.authorBayramoğlu, Gülay
dc.date.accessioned2020-06-25T17:40:37Z
dc.date.available2020-06-25T17:40:37Z
dc.date.issued2005
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe hexavalent chromium biosorption onto native, heat- and acid-treated Chlamydomonas reinhardtii was studied from aqueous solutions. Biosorption equilibrium was established in about 120 min. The surface properties of the microalgae preparations varied with pH, and the maximum absorption of chromium ions on the microalgae preparations was obtained at pH 2.0. The biosorption of chromium ions by the microalgae preparations increased as the initial concentration of chromium ions increased in the medium. The maximum biosorption capacities of the native, heat- and acid-treated algal preparations were 18.2, 25.6 and 21.2 mg Cr(VI) per g of dry biosorbents, respectively. Equilibrium concentration (q(m)) and dissociation constant (K-d) were calculated by fitting the experimental data with the Langmuir isotherms. The chromium adsorption data were analysed using the first- and the second-order kinetic models. The experimental results suggest that the second-order equation is the most appropriate equation to predict the biosorption capacities of all the biosorbents. All the tested algal preparations could be regenerated using 0.1 M NaOH solution, with up to 96% recovery. (c) 2004 Elsevier Ltd. All rights reserved.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/j.procbio.2004.09.008
dc.identifier.endpage2358en_US
dc.identifier.issn1359-5113
dc.identifier.issn1873-3298
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-14644387610
dc.identifier.scopusqualityQ1
dc.identifier.startpage2351en_US
dc.identifier.urihttps://doi.org/10.1016/j.procbio.2004.09.008
dc.identifier.urihttps://hdl.handle.net/20.500.12587/3502
dc.identifier.volume40en_US
dc.identifier.wosWOS:000228221800012
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofProcess Biochemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChlamydomonas reinhardtiien_US
dc.subjectheat-treatmenten_US
dc.subjectacid-treatmenten_US
dc.subjectbiosorptionen_US
dc.subjectCr(VI)en_US
dc.subjectkinetic characterizationen_US
dc.titleUtilisation of native, heat and acid-treated microalgae Chlamydomonas reinhardtii preparations for biosorption of Cr(VI) ionsen_US
dc.typeArticle

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