Show simple item record

Investigating the Release of Co-precipitated Uranium from Iron Oxides

dc.contributor.authorNoubactep, C.
dc.contributor.authorSchöner, A.
dc.contributor.authorDienemann, H.
dc.contributor.authorSauter, M.
dc.date.accessioned2013-05-15T09:54:04Z
dc.date.available2013-05-15T09:54:04Z
dc.date.issued2006
dc.identifier.citationNoubactep, C.; Schöner, A.; Dienemann, H.; Sauter, M. (2006): Investigating the Release of Co-precipitated Uranium from Iron Oxides
dc.relation.ISSN0236-5731
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/8984
dc.description.abstractThe removal of uranium (VI) in zerovalent iron permeable reactive barriers and wetlands can be explained by its association with iron oxides. The long term stability of this immobilized U is yet to be addressed. The presented study investigates the remobilization of U(VI) from iron oxides via diverse reaction pathways (acidification, reduction, complex formation) in the laboratory. Prior uranium co-precipitation experiments were conducted under various conditions. The addition of various amounts of a pH-shifting agent (pyrite), an iron complexing agent (EDTA) or an iron (III) reduction agent (TiCl3) yielded in uranium remobilisation to concentrations above the US EPA maximum allowed contaminant level (MCL = 30 mg/L). This study demonstrates that U(VI) release in nature will strongly depend on the conditions and the mechanism of its fixation by geological materials.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectco-precipitation; iron oxides; pyrite; remobilization; uranium; reactive barriers
dc.subject.ddc550
dc.titleInvestigating the Release of Co-precipitated Uranium from Iron Oxides
dc.typejournalArticle
dc.identifier.doi10.23689/fidgeo-1801
dc.type.versionsubmittedVersion
dc.identifier.fs48804
dc.bibliographicCitation.volume267
dc.bibliographicCitation.issue1
dc.bibliographicCitation.firstPage21
dc.bibliographicCitation.lastPage27
dc.type.subtypejournalArticle
dc.notesManuskriptversion von 2006
dc.description.statuspeerReviewed
dc.bibliographicCitation.journalJournal of Radioanalytical and Nuclear Chemistry


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record