Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T09:24:31.030Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of Trace Elements in Consolidated Sedimentary Rocks on the Migration Behaviour of Radionuclides

Published online by Cambridge University Press:  28 February 2011

W. Bode  and
B. Bode
W. Bode
Affiliation:
Institut für Tieflagerung, Theodor-Heuss-Str. 4, D-3300 Braunschweig, Federal Republic of Germany
B. Bode
Affiliation:
Milchstraße 2, D-3153 Lahstedt, Federal Republic of Germany
Get access

Abstract

The effects of trace contents of 15 elements in the sedimentary rocks on the Rs- and Rd-values (Maass, 1983) of the dissolved radionuclides of the elements C (as carbonates), Se, Sr, Tc, I, Cs, Pb, Ra, Ac, Pa, U, Np, Pu, Am. and Cm were investigated and discussed. For this purpose Sr, Ba, B, Corg., Pb, P, F, Cu, Zn, Cd, V, Mn, Fe, Co and N1 contents in the rocks were compared to the sorptlon/desorption coefficients of the above mentioned 15 radionuclides and plotted in x-y diagrammes (a total of 225). While the magnitude of most trace element contents has no or only a slight influence on the retention properties of most radionuclides, a distinct correlation between the trace element contents and the magnitude of the distribution coefficients was found for some radionuclides. Particularly copper, organic carbon, and barium are found to take a positive influence on the Rs-/Rd-values of certain radionuclides. The presence of other trace elements (eg. B and F) can have a negative effect on the retention behaviour of the rock matrix as regards certain dissolved radionuclides. Seen as a whole, the magnitude of the desorption coefficients (Rd-val-ues) appears to be more closely correlated to the trace element contents than to the sorption coefficients (Rs-values).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 212: Symposium P – Scientific Basis for Nuclear Waste Management XIV , 1990 , 601
Copyright
Copyright © Materials Research Society 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Appel, D., Bericht über die geologische Neuaufnahme der Asse bei Wolfenbüt-tel Ostniedersachsen unter besonderer Beriickslchtigung ihrer Quartärbe-deckuna und Tektonik der Südwestflanke. Bericht am Nledersächsischen Lan-desamt für Bodenforschung, AZ.: IV-13006/71, pp. 129: Hannover, 1971 (unpublished).Google Scholar
Batsche, H., von Stempel, C., Hydrogeologisches Forschungsprogramm Asse. Zu-sammenfassender Zwischenbericht, R 364/T 180, pp. 127, Neuherberg-Braun-schweig, 1984.Google Scholar
Bode, W., Wolfrum, C., Investigations on Radionuclide Retardation at Asse Salt Mine. R&D Programme and First Results, (Proc. 2nd Int. Conference on Radioactive Waste Management, Winnipeg, Man. CDN 1986) ISBN-0-919784-08-9.Google Scholar
Bode, W., Untersuchungen zur Bestimmung der Rückhalteeigenschaften von Ge-steinen über der Schachtanlage Asse II gegenüber Radionukliden. GSF-Be-richt 16/89, pp. 218, 1989.Google Scholar
Klarr, K., Grundlagen zur Geologie der Asse. GSF-Bericht T-117, pp. 92, 1981.Google Scholar
Klarr, K. et al, Der Zechstein in der Asse SE Braunschweig..., (Exkursions-führer 1 des Int. Symp. Zechstein ‘87, Hannover) pp 101– 122, 1987.Google Scholar
Maass, K. E., Huf, A., Standardization of methods for measuring migration of radionuclides in Geomedia. Proc. of US/FRG Bilateral Workshop, Berlin/Munich, October 25–29, 1982, Hahn-Me1tner Institut für Kernforschung, D-1000 Berlin, 1983 Google Scholar
Wolfrum, C., Klotz, D., Bode, W., Bestimmung des Sorptions-Desorptlonsverhal-tens ausgewählter RadionukUde an Sedimentgestelnsproben des Asse-Deckge-blrges, GSF-Bericht 25/88, 1988.Google Scholar