Equilibrium isotherm studies for the uptake of cadmium and lead ions onto sugar beet pulp

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dc.contributor.authorPehlivan, E.
dc.contributor.authorYanik, B. H.
dc.contributor.authorAhmetli, Gülnare
dc.contributor.authorPehlivan, M.
dc.date.accessioned2020-03-26T17:26:49Z
dc.date.available2020-03-26T17:26:49Z
dc.date.issued2008
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe adsorption of Cd2+ and Pb2+ on sugar beet pulp (SBP), a low-cost material, has been studied. In the present work, the abilities of native (SBP) to remove cadmium (Cd2+) and lead (Pb2+) ions from aqueous solutions were compared. The (SBP) an industrial by product and solid waste of sugar industry were used for the removal of Cd2+ and Pb2+ ions from aqueous water. Batch adsorption studies were carried out to examine the influence of various parameters such as initial pH, adsorbent dose, initial metal ion concentration, and time on uptake. The sorption process was relatively fast and equilibrium was reached after about 70 min of contact. As much as 70-75% removal of Cd2+ and Pb2+ ions for (SBP) are possible in about 70 min, respectively, under the batch test conditions. Uptake of Cd2+ and Pb2+ ions on (SBP) showed a pH-dependent profile. The overall uptake for the (SBP) is at a maximum at pH 5.3 and gives up to 46.1 mg g(-1) for Cd2+ and at pH 5.0 and gives 43.5 mg g(-1) for Pb2+ for (SBP), which seems to be removed exclusively by ion exchange, physical sorption and chelation. A dose of 8 g L-1 was sufficient for the optimum removal of both the metal ions. The Freundlich represented the sorption data for (SBP). In the presence of 0.1 M NaNO3 the level of metal ion uptake was found to reach its maximum value very rapidly with the speed increasing both with the (SPB) concentration and with increasing initial pH of the suspension. The reversibility of the process was investigated. The desorption of Cd2+ and Pb2+ ions which were previously deposited on the (SBP) back into the deionised water was observed only in acidic pH values during one day study period and was generally rather low. The extent of adsorption for both metals increased along with an increase of the (SBP) dosage. (SBP), which is cheap and highly selective, therefore seems to be a promising substrate to entrap heavy metals in aqueous solutions. (C) 2007 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.biortech.2007.07.052en_US
dc.identifier.endpage3527en_US
dc.identifier.issn0960-8524en_US
dc.identifier.issue9en_US
dc.identifier.pmid17855082en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage3520en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.biortech.2007.07.052
dc.identifier.urihttps://hdl.handle.net/20.500.12395/22380
dc.identifier.volume99en_US
dc.identifier.wosWOS:000254479300027en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherELSEVIER SCI LTDen_US
dc.relation.ispartofBIORESOURCE TECHNOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectuptakeen_US
dc.subjectsugar beet pulpen_US
dc.subjectsorption isothermsen_US
dc.subjectheavy metalsen_US
dc.subjectsorptionen_US
dc.titleEquilibrium isotherm studies for the uptake of cadmium and lead ions onto sugar beet pulpen_US
dc.typeArticleen_US

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