Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell

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dc.contributor.authorPehlivan, Erol
dc.contributor.authorAltun, Türkan
dc.date.accessioned2020-03-26T17:28:47Z
dc.date.available2020-03-26T17:28:47Z
dc.date.issued2008
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe potential to remove Cr(VI) ion from aqueous solutions through biosorption using, the shells of Walnut (WNS) (Juglans regia), Hazelnut (HNS) (Corylus avellana) and Almond (AS) (Prunus dulcis) was investigated in batch experiments. The equilibrium adsorption level was determined to be a function of the solution contact time and concentration. Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 100 min. The biosorptive capacity of the shells was dependent on the pH of the chromium solution, with pH 3.5 being optimal. Adsorption of Cr(VI) ion uptake is in all cases pH-dependent showing a maximum at equilibrium pH values between 2.0 and 3.5, depending on the biomaterial, that correspond to equilibrium pH values of 3.5 for (WNS), 3.5 for (HNS) and 3.2 for (AS). The adsorption data fit well with the Langmuir isotherm model. The sorption process conformed to the Langmuir isotherm with maximum Cr(VI) ion sorption capacities of 8.01, 8.28, and 3.40 mg/g for WNS, HNS and AS, respectively. Percentage removal by WNS, HNS and AS was 85.32, 88.46 and 55.00%, respectively at a concentration of 0.5 mM. HNS presented the highest adsorption capacities for the Cr(VI) ion. © 2007 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorship05101014/2005en_US
dc.description.sponsorshipWe express our thanks to the Selcuk University Scientific Research Foundation, which has financed the project (05101014/2005), a part of which is presented in this study.en_US
dc.identifier.doi10.1016/j.jhazmat.2007.11.071en_US
dc.identifier.endpage384en_US
dc.identifier.issn0304-3894en_US
dc.identifier.issue01.02.2020en_US
dc.identifier.pmid18179865en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage378en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jhazmat.2007.11.071
dc.identifier.urihttps://hdl.handle.net/20.500.12395/22848
dc.identifier.volume155en_US
dc.identifier.wosWOS:000256552800048en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.relation.ispartofJournal of Hazardous Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAdsorptionen_US
dc.subjectAlmonden_US
dc.subjectBatch modelen_US
dc.subjectChromiumen_US
dc.subjectHazelnuten_US
dc.subjectLow-cost adsorbenten_US
dc.subjectShellen_US
dc.subjectWalnuten_US
dc.titleBiosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shellen_US
dc.typeArticleen_US

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