Influence of natural colloids on radionuclide migration in the caprock above the Gorleben salt dome
Creators
- 1. Inst. fuer Radiochemie, Technische Univ. Muenchen (Germany)
Description
The paper deals with the chemical interaction of radionuclides with groundwater colloids in selected Gorleben acquifers. Since colloids have different transport properties compared with dissolved metal ions, the interaction of radionuclides with groundwater colloids has a decisive influence on migration, and is therefore of fundamental importance for long-term safety analyses. Selected groundwaters were conditioned by trace concentrations of the actinides Am, Cm, Th and Np. Thus the colloidal influence on the trivalent, quadrivalent and, pentavalent actinides could be studied. For hexavalent actinides the analytical data of uranium of natural occurrence in groundwaters were used. (orig.)
Abstract (German)
Der Beitrag befasst sich mit der chemischen Wechselwirkung von Radionukliden mit Grundwasser-Kolloiden in ausgewaehlten Gorleben-Aquiferen. Da Kolloide andere Transporteigenschaften als geloeste Metallionen aufweisen, hat die Wechselwirkung von Radionukliden mit Grundwasser-Kolloiden einen entscheidenden Einfluss auf deren Migration und ist somit von grundlegender Bedeutung fuer Langzeit-Sicherheitsanalysen. Ausgewaehlte Grundwaesser wurden mit Spurenkonzentrationen der Aktiniden Am, Cm, Th und Np konditioniert. Dadurch konnte der kolloidale Einfluss auf die drei-, vier- und fuenfwertigen Aktiniden untersucht werden. Fuer die sechswertigen Aktiniden wurden die analytischen Daten von natuerlich vorhandenem Uran in den Grundwaessern herangezogen. (orig.)
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Additional details
Additional titles
- Original title (German)
- Einfluss von natuerlichen Kolloiden auf die Radionuklidmigration im Deckgebirge ueber dem Salzstock bei Gorleben
Publishing Information
- Imprint Title
- Radionuclide migration in the caprock above the Gorleben repository
- Imprint Pagination
- 236 p.
- Journal Page Range
- p. 205-225.
- Report number
- BfS-ET--18/93
Conference
- Title
- Expert discussion on problems of radionuclide migration and long-term safety of the projected ultimate storage site at Gorleben.
- Original Conference Title
- Fachgespraech zu Fragen der Radionuklidmigration und Langzeitsicherheit des geplanten Endlagers Gorleben
- Dates
- 3 Jun 1992.
- Place
- Salzgitter (Germany).
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 25062503
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AMERICIUM COMPOUNDS; AQUIFERS; CURIUM COMPOUNDS; GEOCHEMISTRY; GORLEBEN SALT DOME; GROUND WATER; HAFNIUM COMPOUNDS; LUTETIUM COMPOUNDS; NATURAL OCCURRENCE; NEPTUNIUM COMPOUNDS; RADIOCOLLOIDS; RADIONUCLIDE MIGRATION; THORIUM COMPOUNDS; TRACER TECHNIQUES; URANIUM COMPOUNDS; YTTERBIUM COMPOUNDS; ZIRCONIUM COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPOUNDS; COLLOIDS; DISPERSIONS; ENVIRONMENTAL TRANSPORT; HYDROGEN COMPOUNDS; ISOTOPE APPLICATIONS; MASS TRANSFER; NUCLEAR FACILITIES; OXYGEN COMPOUNDS; RADIOACTIVE WASTE FACILITIES; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSPLUTONIUM COMPOUNDS; TRANSURANIUM COMPOUNDS; WATER
Optional Information
- Notes
- Imprint:Nuklidmigration im Deckgebirge des Endlagerortes Gorleben.;Vortraege.