Chronospeciation of uranium released in soil during a long-term DU shell weathering experiment

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000609169900003&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1016/j.jenvrad.2020.106511
eISSN
1879-1700
Externe Identifier
  • Clarivate Analytics Document Solution ID: PU2XX
  • PubMed Identifier: 33341752
ISSN
0265-931X
Zeitschrift
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
Schlüsselwörter
  • Depleted uranium
  • Becquerelite
  • Metaschopite
  • U(VI) adsorption
  • Ferrihydrite
  • Surface complexation modelling
Artikelnummer
ARTN 106511
Datum der Veröffentlichung
2021
Status
Published
Titel
Chronospeciation of uranium released in soil during a long-term DU shell weathering experiment
Sub types
  • Article
Ausgabe der Zeitschrift
228

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
DOI
10.1016/j.jenvrad.2020.106511
ISSN
0265-931X
Zeitschrift
Journal of Environmental Radioactivity
Sprache
en
Artikelnummer
106511
Paginierung
106511 - 106511
Datum der Veröffentlichung
2021
Status
Published
Herausgeber
Elsevier BV
Herausgeber URL
http://dx.doi.org/10.1016/j.jenvrad.2020.106511
Datum der Datenerfassung
2022
Titel
Chronospeciation of uranium released in soil during a long-term DU shell weathering experiment
Ausgabe der Zeitschrift
228

Datenquelle: Crossref

Abstract
Corrosion process was investigated of depleted uranium (DU) ammunition fragments buried for three years in aerobic soils continuously irrigated with water. The continuing corrosion process was triggered through formation of soluble uranyl oxyhydrate phases such as metaschoepite and becquerelite, which were identified by micro-Raman and X-ray diffraction spectroscopy. The soil was not amended by phosphates and, therefore, no uranyl phosphates were found as corrosion products on the DU surfaces by X-ray photoelectron spectroscopy. A speciation modelling at high temporal sequence (chronospeciation approach) indicated that the abundant Fe oxyhydroxides in the soil immobilized the U(IV) released through DU corrosion. During the first two years, therefore, only <10 mg of U(VI) was thus found in the leachates from the soil columns, even though >3 g of DU had been corroded. However, the degree of this immobilization was found to be controlled by the amount of dissolved inorganic and organic carbon (DIC and DOC) in the soil pore water providing for U(VI) complexation competing with surface complexation by the Fe hydroxides. The chronospeciation approach applied is useful to improve our understanding and ability to predict the long-term fate of U(VI) and the mechanisms controlling U(VI) mobility in soil contaminated with DU shells.
Addresses
  • Geosciences Institute, Johannes Gutenberg-University, J.-J. Becherweg 21, Mainz, 55099, Germany.
Autoren
DOI
10.1016/j.jenvrad.2020.106511
eISSN
1879-1700
Externe Identifier
  • PubMed Identifier: 33341752
Funding acknowledgements
  • Deutscher Akademischer Austauschdienst:
Open access
false
ISSN
0265-931X
Zeitschrift
Journal of environmental radioactivity
Schlüsselwörter
  • Uranium
  • Soil Pollutants, Radioactive
  • Soil
  • Radiation Monitoring
  • Corrosion
Sprache
eng
Medium
Print-Electronic
Online publication date
2020
Paginierung
106511
Datum der Veröffentlichung
2021
Status
Published
Datum der Datenerfassung
2020
Titel
Chronospeciation of uranium released in soil during a long-term DU shell weathering experiment.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
228

Datenquelle: Europe PubMed Central

Abstract
Corrosion process was investigated of depleted uranium (DU) ammunition fragments buried for three years in aerobic soils continuously irrigated with water. The continuing corrosion process was triggered through formation of soluble uranyl oxyhydrate phases such as metaschoepite and becquerelite, which were identified by micro-Raman and X-ray diffraction spectroscopy. The soil was not amended by phosphates and, therefore, no uranyl phosphates were found as corrosion products on the DU surfaces by X-ray photoelectron spectroscopy. A speciation modelling at high temporal sequence (chronospeciation approach) indicated that the abundant Fe oxyhydroxides in the soil immobilized the U(IV) released through DU corrosion. During the first two years, therefore, only <10 mg of U(VI) was thus found in the leachates from the soil columns, even though >3 g of DU had been corroded. However, the degree of this immobilization was found to be controlled by the amount of dissolved inorganic and organic carbon (DIC and DOC) in the soil pore water providing for U(VI) complexation competing with surface complexation by the Fe hydroxides. The chronospeciation approach applied is useful to improve our understanding and ability to predict the long-term fate of U(VI) and the mechanisms controlling U(VI) mobility in soil contaminated with DU shells.
Date of acceptance
2020
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/33341752
DOI
10.1016/j.jenvrad.2020.106511
eISSN
1879-1700
Zeitschrift
J Environ Radioact
Schlüsselwörter
  • Becquerelite
  • Depleted uranium
  • Ferrihydrite
  • Metaschopite
  • Surface complexation modelling
  • U(VI) adsorption
  • Corrosion
  • Radiation Monitoring
  • Soil
  • Soil Pollutants, Radioactive
  • Uranium
Sprache
eng
Country
England
Paginierung
106511
PII
S0265-931X(20)30757-8
Datum der Veröffentlichung
2021
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2021
Titel
Chronospeciation of uranium released in soil during a long-term DU shell weathering experiment.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
228

Datenquelle: PubMed

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