Modeling of single and binary adsorption of lead and cadmium ions onto modified olive pomace

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dc.contributor.authorUzunkavak, Onur
dc.contributor.authorPatterer, Maria Silvina
dc.contributor.authorMedici, Franco
dc.contributor.authorOzdemir, Gunseli
dc.date.accessioned2019-10-27T09:41:37Z
dc.date.available2019-10-27T09:41:37Z
dc.date.issued2019
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study deals with the evaluation of the single and binary removal of Pb2+ and Cd2+ from aqueous solutions using HNO3 modified olive pomace (N-OP). For the specific binary adsorption behavior, a renovative isotherm model was developed based on the additivity of the single adsorption contributions of Pb2+ and Cd2+ calculated from the binary data. The effect of the initial metal ion concentration, pH, ionic strength, and temperature on the adsorption of the single Pb2+ and Cd2+, and their binary adsorption were investigated using batch experiments at the optimum conditions. The N-OP displayed maximum adsorption capacities of 64 mg g(-1) for Pb2+ and 20.5 mg g(-1) for Cd2+ from the single metal ion solutions using 1.0 g L-1 N-OP. The results were best fitted with the Langmuir model for Pb2+ and the Radke-Prausnitz model for Cd2+ adsorption at 25 degrees C. The reusability of the N-OP was confirmed with desorption studies. The thermodynamic study revealed that the adsorption of Pb2+ was exothermic and that of Cd2+ was an endothermic process. The existence of Cd2+ in a binary solution increased the Pb2+ removal while that of Pb2+ reduced the Cd2+ removal with N-OP. This behavior may contribute to a selective removal of the heavy metal ions from their mixture.en_US
dc.description.sponsorshipEge University Research FundEge University [14-MUH-052]en_US
dc.description.sponsorshipThe authors are thankful to Ege University Research Fund for the financial support under Project No 14-MUH-052.en_US
dc.identifier.doi10.5004/dwt.2019.24340
dc.identifier.endpage289en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issn1944-3994en_US
dc.identifier.issn1944-3986en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage278en_US
dc.identifier.urihttps://doi.org/10.5004/dwt.2019.24340
dc.identifier.urihttps://hdl.handle.net/11454/28657
dc.identifier.volume162en_US
dc.identifier.wosWOS:000482220600028en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDesalination Publen_US
dc.relation.ispartofDesalination and Water Treatmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBiosorptionen_US
dc.subjectOlive pomaceen_US
dc.subjectLeaden_US
dc.subjectCadmiumen_US
dc.subjectBinary adsorptionen_US
dc.titleModeling of single and binary adsorption of lead and cadmium ions onto modified olive pomaceen_US
dc.typeArticleen_US

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