Uranium VI adsorption on model minerals: controlling factors and surface complexation modeling

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dc.contributor.authorPayne, TEen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorWaite, TDen_AU
dc.date.accessioned2022-11-03T23:47:32Zen_AU
dc.date.available2022-11-03T23:47:32Zen_AU
dc.date.issued1998en_AU
dc.date.statistics2022-10-11en_AU
dc.descriptionPrint copy is held by ANSTO Library at DDC 628.55/7.en_AU
dc.description.abstractUranium VI sorption on ferrihydrite and kaolinite is influenced by a large number of factors, including pH, ionic strength, partial pressure of CO2, adsorbent loading, total amount of U present, and the presence of ligands such as phosphate and humic acid. The effect of complexing ligands may be to enhance or reduce U uptake. The adsorption model being used for ferrihydrite is a surface complexation model with a diffuse double layer, and both strong and weak sites for U sorption. In terms of the amount of U sorbed per gram of adsorbent, U uptake on kaolinites KGa-1 and KGa-1B is much weaker than U uptake on ferrihydrite under similar experimental conditions. Titanium-rich impurity phases play a major role in the sorption of U by these standard kaolinites. Trace impurities and mineral coatings such as ferrihydrite can play a dominant role in determining U sorption in both environmental and model systems. © 1998 Elsevier Inc.en_AU
dc.identifier.booktitleAdsorption of Metals by Geomediaen_AU
dc.identifier.chapter2en_AU
dc.identifier.citationPayne, T. E., Lumpkin, G. R., & Waite, T. D. (1998). Uranium VI adsorption on model minerals: controlling factors and surface complexation modeling. In E. A. Jenne (Ed.), Adsorption of Metals by Geomedia, (pp. 75-97). San Diego; Academic Press. doi:10.1016/B978-012384245-9/50003-7en_AU
dc.identifier.editorsE. A. Jenneen_AU
dc.identifier.isbn978-0-12-384245-9en_AU
dc.identifier.pagination75-97en_AU
dc.identifier.placeofpublicationSan, Diego, USAen_AU
dc.identifier.urihttps://doi.org/10.1016/B978-012384245-9/50003-7en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13969en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectUraniumen_AU
dc.subjectAdsorptionen_AU
dc.subjectMineralsen_AU
dc.subjectSimulationen_AU
dc.subjectKaoliniteen_AU
dc.subjectLigandsen_AU
dc.titleUranium VI adsorption on model minerals: controlling factors and surface complexation modelingen_AU
dc.typeBook chapteren_AU
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