Zur Kurzanzeige

dc.contributor.authorNoubactep, Chicgoua
dc.contributor.authorSonnefeld, J.
dc.contributor.authorMerten, D.
dc.contributor.authorHeinrichs, T.
dc.date.accessioned2010-11-24T15:58:35Z
dc.date.available2010-11-24T15:58:35Z
dc.date.issued2006
dc.identifier.citationJournal of radioanalytical and nuclear chemistry; Vol. 270.2006, No. 2, p. 325-333
dc.identifier.urihttp://hdl.handle.net/11858/00-1735-0000-0001-33E4-E
dc.description.abstractThe influence of calcite, dolomite, pyrite and vaterite on the kinetics of uranium (U) release from a natural rock under relevant i.e. field conditions has been investigated. The time dependence of the U release has been studied in two different experimental procedures (open and closed systems) at laboratory temperature (21 ± 2 ʿC). Performing batch experiments in tap water, the U release efficiency of a natural U-bearing rock was characterised in the presence of varying amounts of three different carbonate bearing minerals for experimental durations of up to 782 days. Another experiment was conducted for a period of 14 days in the presence of a pyrite mineral. The results demonstrate that the presence of carbonate minerals does not have any significant influence on U release in closed systems where the U concentration at saturation was ca. 54 mg/L. In contrast, in open systems, the U concentration was ca. 8 mg/L at saturation and the effects of all additives both on kinetics and saturation concentration of U were apparent.
dc.format.extent29 S.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.relation.ispartofseriesJournal of radioanalytical and nuclear chemistry
dc.rights.urihttp://e-docs.geo-leo.de/rights
dc.subject.ddc551
dc.subject.gokVJF 000
dc.titleEffects of the presence of pyrite and carbonate minerals on the kinetics of the uranium release from a natural rock
dc.typearticle
dc.subject.gokverbalUmweltgeochemie insgesamt
dc.bibliographicCitation.volume270
dc.bibliographicCitation.issue2
dc.bibliographicCitation.firstPage325
dc.bibliographicCitation.lastPage333
dc.identifier.doi10.23689/fidgeo-822
dc.identifier.ppn587556315
dc.identifier.urn10.1007/s10967-006-0352-x
dc.type.versionpublishedVersion
dc.bibliographicCitation.journalJournal of radioanalytical and nuclear chemistry
dc.relation.collectionGeologische Wissenschaften
dc.description.typeresearch


Dateien zu dieser Ressource

Thumbnail

Das Dokument erscheint in:

Zur Kurzanzeige