Chromium(VI) biosorption and bioaccumulation by Live and acid-modified biomass of a novel morganella morganii isolate

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dc.citation.epage914en_US
dc.citation.issueNumber6en_US
dc.citation.spage907en_US
dc.citation.volumeNumber49en_US
dc.contributor.authorErgul-Ulger, Z.en_US
dc.contributor.authorOzkan A.D.en_US
dc.contributor.authorTunca E.en_US
dc.contributor.authorAtasagun, S.en_US
dc.contributor.authorTekinay, T.en_US
dc.date.accessioned2016-02-08T10:59:58Z
dc.date.available2016-02-08T10:59:58Z
dc.date.issued2014en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractConventional methods of chromium removal are often insufficient for the remediation of chromium-contaminated natural environments, necessitating the development of alternative strategies. In this paper, we report the isolation of a novel Morganella morganii strain capable of reducing hexavalent chromium to its less-toxic and less-soluble trivalent form. Cr(VI) reduction by this strain was evaluated in both acidic environments and conditions reflecting natural freshwater sources. The isolate achieved equilibrium within 3 h and displayed a specific uptake rate of 24.30 ± 1.67 mg Cr(VI)/g biomass following HCl treatment. Without acid treatment, a reduction of over 90% was recorded within 72 h for an initial Cr(VI) concentration 20 mg/L, corresponding to a Cr(VI) removal capacity of 19.36 ± 1.89 mg/g. Absorption data of acid-treated STB5 biomass most closely followed the Toth and Langmuir models. FTIR results indicate that hydroxyl groups and extracellular or cell membrane polysaccharides may be potential adsorption sites for hexavalent chromium. Our results suggest that the isolate may be used in situ for treatment of polluted freshwater environments. Copyright © Taylor & Francis Group, LLC.en_US
dc.identifier.doi10.1080/01496395.2013.866681en_US
dc.identifier.issn0149-6395
dc.identifier.urihttp://hdl.handle.net/11693/26447
dc.language.isoEnglishen_US
dc.publisherTaylor and Francisen_US
dc.relation.isversionofhttps://doi.org/10.1080/01496395.2013.866681en_US
dc.source.titleSeparation Science and Technology (Philadelphia)en_US
dc.subjectBioaccumulationen_US
dc.subjectBiosorptionen_US
dc.subjectChromium (VI)en_US
dc.subjectEnterobacteriaceaen_US
dc.subjectheavy metal bioremediationen_US
dc.subjectMorganella morganiien_US
dc.subjectBioaccumulationen_US
dc.subjectBiochemistryen_US
dc.subjectBiomassen_US
dc.subjectBioremediationen_US
dc.subjectBiosorptionen_US
dc.subjectCell membranesen_US
dc.subjectChromium compoundsen_US
dc.subjectCytologyen_US
dc.subjectHeavy metalsen_US
dc.subjectWateren_US
dc.subjectAcidic environmenten_US
dc.subjectConventional methodsen_US
dc.subjectEnterobacteriaceaen_US
dc.subjectFreshwater environmentsen_US
dc.subjectFreshwater sourcesen_US
dc.subjectHexavalent chromiumen_US
dc.subjectMorganella morganiien_US
dc.subjectNatural environmentsen_US
dc.subjectChromiumen_US
dc.titleChromium(VI) biosorption and bioaccumulation by Live and acid-modified biomass of a novel morganella morganii isolateen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)