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

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dc.contributor.author Saad, D.M.
dc.contributor.author Cukrowska, E.
dc.contributor.author Tutu, H.
dc.date.accessioned 2016-11-09T14:33:29Z
dc.date.available 2016-11-09T14:33:29Z
dc.date.issued 2015-03
dc.identifier.citation Saad, 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.issn 2190-5487 (Print)
dc.identifier.issn 2190-5495 (Online)
dc.identifier.uri http://hdl.handle.net/10539/21438
dc.description.abstract A 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.language.iso en en_ZA
dc.publisher Springer en_ZA
dc.rights © The Author(s) 2014. This article is published with open access at Springerlink.com en_ZA
dc.subject Uranium removal en_ZA
dc.subject Breakthrough curves en_ZA
dc.subject Fixed-bed columns en_ZA
dc.subject HEAVY-METALS; BIOSORPTION; COMPLEXATION; IONS; BED en_ZA
dc.subject HEAVY-METALS en_ZA
dc.subject BIOSORPTION en_ZA
dc.subject COMPLEXATION en_ZA
dc.subject IONS en_ZA
dc.subject BED en_ZA
dc.title Column adsorption studies for the removal of U by phosphonated cross-linked polyethylenimine: modelling and optimization. en_ZA
dc.type Article en_ZA
dc.journal.volume 5 en_ZA
dc.journal.title Applied Water Science en_ZA
dc.description.librarian SP2016 en_ZA
dc.citation.doi 10.1007/s13201-014-0162-1 en_ZA
dc.citation.epage 63 en_ZA
dc.citation.issue 1 en_ZA
dc.citation.spage 57 en_ZA


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