Zur Kurzanzeige

dc.contributor.authorNoubactep, Chicgoua
dc.date.accessioned2010-11-24T15:58:36Z
dc.date.accessioned2013-01-28T07:58:26Z
dc.date.available2010-11-24T15:58:36Z
dc.date.available2013-01-28T07:58:26Z
dc.date.issued2006
dc.identifier.citationJournal of radioanalytical and nuclear chemistry; Vol. 267.2006, No. 1, p. 13-19
dc.identifier.urihttp://hdl.handle.net/11858/00-1735-0000-0001-33E8-6
dc.description.abstractThe effect of Cl-, CO32-, EDTA, NO2-, NO3-, PO43-, SO42-, and humic substances (HS)on the U(VI)co-precipitation from aqueous solutions by zerovalent iron (ZVI) was investigated in the neutral pH range.Batch experiments without shaking were conducted for 14 days mostly with five different ZVI materials (15 g/l), selected ligands (10mM) and an U(VI) solution (20 mg/l, 0.084mM). Apart from Cl-, all tested ligands induced a decrease ofU(VI)coprecipitation. This decrease is attributed to the surface adsorption and complexation of the ligands at the reactive sites on the surface of ZVI and their corrosion products. The decrease ofU(VI)removal was not uniform with the five ZVI materials. Generally, groundwater with elevated EDTA concentration could not be remediated with the ZVI barrier technology. The response of the system on the pre-treating by two ZVI materials in 250mM HCl indicated that in situ generated corrosion products favor an irreversible U(VI) uptake. Thus for the long term performance of ZVI barrier, the iron dissolution should continue in such a way that fresh iron oxide be always available for U(VI) coprecipitation.
dc.format.extent23 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.gokVJF 000
dc.titleEffects of selected ligands on U (VI) immobilization by zerovalent iron
dc.typearticle
dc.subject.gokverbalUmweltgeochemie insgesamt
dc.bibliographicCitation.volume267
dc.bibliographicCitation.issue1
dc.bibliographicCitation.firstPage13
dc.bibliographicCitation.lastPage19
dc.identifier.doi10.23689/fidgeo-1802
dc.identifier.ppn573616078
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