Assessment of surface area normalisation for interpreting distribution coefficients (Kd) for uranium sorption

Simple item page
dc.contributor.authorPayne, TEen_AU
dc.contributor.authorBrendler, Ven_AU
dc.contributor.authorComarmond, MJen_AU
dc.contributor.authorNebelung, Cen_AU
dc.date.accessioned2021-06-10T01:11:40Zen_AU
dc.date.available2021-06-10T01:11:40Zen_AU
dc.date.issued2011-10en_AU
dc.date.statistics2021-03-11en_AU
dc.description.abstractAdsorption of radionuclides on soils and sediments is commonly quantified by distribution coefficients (Kd values). This paper examines the relationship between Kd values for uranium(VI) adsorption and the specific surface area (SSA) of geologic materials. We then investigate the potential applicability of normalising uranium (U) Kd measurements using the SSA, to produce ‘Ka values’ as a generic expression of the affinity of U for the surface. The data for U provide a reasonably coherent set of Ka values on various solid phases, both with and without ligands. The Ka representation provides a way of harmonising datasets obtained for materials having different specific surface areas, and accounting for the effects of ligands in different systems. In addition, this representation may assist in developing U sorption models for complex materials. However, a significant limitation of the Ka concept is that sorption of radionuclides at trace levels can be dominated by interactions with specific surface sites, whose abundances are not reflected by the SSA. Therefore, calculated Ka values should be interpreted cautiously. © 2010 Elsevier Ltd.en_AU
dc.identifier.citationPayne, T. E., Brendler, V., Comarmond, M. J., & Nebelung, C. (2011). Assessment of surface area normalisation for interpreting distribution coefficients (Kd) for uranium sorption. Paper presented to the 10th Biennial SPERA (South Pacific Environmental Radioactivity Association) Conference, 24/11/2008 to 27/11/2008, Christchurch, New Zealand. In Hermanspahn, N., & Matthews, M. (Eds), Journal of Environmental Radioactivity, 102(10), 888-895. doi:10.1016/j.jenvrad.2010.04.005en_AU
dc.identifier.conferenceenddate27 November 2008en_AU
dc.identifier.conferencename10th Biennial SPERA (South Pacific Environmental Radioactivity Association) Conferenceen_AU
dc.identifier.conferenceplaceChristchurch, New Zealanden_AU
dc.identifier.conferencestartdate24 November 2008en_AU
dc.identifier.editorsHermanspahn, N., & Matthews, M.en_AU
dc.identifier.issn0265-931Xen_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitleJournal of Environmental Radioactivityen_AU
dc.identifier.pagination888-895en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jenvrad.2010.04.005en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10835en_AU
dc.identifier.volume102en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.subjectAdsorptionen_AU
dc.subjectSorptionen_AU
dc.subjectSurface areaen_AU
dc.subjectUraniumen_AU
dc.subjectRadioisotopesen_AU
dc.subjectDatasetsen_AU
dc.titleAssessment of surface area normalisation for interpreting distribution coefficients (Kd) for uranium sorptionen_AU
dc.typeConference Paperen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications