Column adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization.

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dc.citation.doi10.1007/s13201-014-0162-1en_ZA
dc.citation.epage63en_ZA
dc.citation.issue1en_ZA
dc.citation.spage57en_ZA
dc.contributor.authorSaad, D.M.
dc.contributor.authorCukrowska, E.
dc.contributor.authorTutu, H.
dc.date.accessioned2016-11-09T14:33:29Z
dc.date.available2016-11-09T14:33:29Z
dc.date.issued2015-03
dc.description.abstractA continuous fixed-bed adsorption study was carried out by using phosphonated cross-linked polyethylenimine as an adsorbent for the removal of uranium (U) from aqueous solutions. The effect of inlet metal ion concentration (40, 70, and 100 mg L-1), feed flow rate (1, 2, and 3 mL min(-1)), and polymer bed height (2.5, 3.2 and 4.5 cm) on the breakthrough characteristics of the fixed-bed adsorption system at pH 2 were studied. The results showed that the breakthrough time appeared to increase with increase of bed height but decreased with increase of both influent U concentration and flow rate. Modelling of the dynamics of the fixed-bed adsorption process was studied and the application of different models to describe the breakthrough curves showed that the Thomas and Yoon-Nelson model gave better results for the operating conditions.en_ZA
dc.description.librarianSP2016en_ZA
dc.identifier.citationSaad, D.M., Cukrowska, E. and Tutu, H. 2015. Column adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization. Applied Water Science 5(1), pp.57-63.en_ZA
dc.identifier.issn2190-5487 (Print)
dc.identifier.issn2190-5495 (Online)
dc.identifier.urihttp://hdl.handle.net/10539/21438
dc.journal.titleApplied Water Scienceen_ZA
dc.journal.volume5en_ZA
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© The Author(s) 2014. This article is published with open access at Springerlink.comen_ZA
dc.subjectUranium removalen_ZA
dc.subjectBreakthrough curvesen_ZA
dc.subjectFixed-bed columnsen_ZA
dc.subjectHEAVY-METALS; BIOSORPTION; COMPLEXATION; IONS; BEDen_ZA
dc.subjectHEAVY-METALSen_ZA
dc.subjectBIOSORPTIONen_ZA
dc.subjectCOMPLEXATIONen_ZA
dc.subjectIONSen_ZA
dc.subjectBEDen_ZA
dc.titleColumn adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization.en_ZA
dc.typeArticleen_ZA
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