Hostname: page-component-76fb5796d-45l2p Total loading time: 0 Render date: 2024-04-30T02:45:18.068Z Has data issue: false hasContentIssue false
  • English
  • Français

Use of the QUasI-Stationary State Approximation to Determine the Migration of Mineral Alteration Zones at a Natural Analogue for the Disturbed Zone of a Cementitious Radioactive Waste Repository

Published online by Cambridge University Press:  25 February 2011

A.V. Chambers
A.V. Chambers*
Affiliation:
AEA Technology, Decommissioning & Waste Management, 424.4 Harwell, Oxon OX11 0RA, UK.
Get access

Abstract

Calculation of the movement of chemical fronts over long timescales could be important in underpinning performance assessments for radioactive waste disposal. A quasi-stationary state model, MARQUISS (Mineral Alteration Reactions using the QUasI-Statίonary State approximation), has been developed to achieve this objective by avoiding many of the problems encountered using more conventional approaches to coupled chemistry and transport calculations. MARQUISS simulates advective, dispersive and diffusive transport through a one-dimensional porous medium coupled with the chemical kinetics of mineral precipitation and dissolution. A description of its development and verification for simple systems is provided, together with its application in a study of the migration of mineral alteration zones at a natural analogue for a cementitious radioactive waste repository located at Maqarin in northern Jordan.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 333: Symposium V – Scientific Basis for Nuclear Waste Management XVII , 1993 , 639
Copyright
Copyright © Materials Research Society 1994

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

1 Ortoleva, P., Chadam, J., Merino, E. and Sen, A., Am.J.Sci. 287, 1008–1040 (1987).CrossRefGoogle Scholar
2 Galloway, W.E., Econ. Geology 73, 1655–1676 (1978).CrossRefGoogle Scholar
3 Bailey, R.V. and Childers, M.D., Applied Mineral Exploration with Special Reference to Uranium, Westview Press, Boulder, Colorado, (1977).Google Scholar
4 Cross, J.E., Haworth, A., Lichtner, P.C., Mackenzie, A.B., Moreno, L., Neretnieks, I., Nordstrom, D.K., Read, D., Romero, L., Scott, R.D., Sharland, S.M., and Tweed, C.J., Testing Models of Redox Front Migration and Geochemistry at the Osamu Utsumi Mine and Morro do Ferro Analogue Study Sites, Poços de Caldas, Brazil, UK DOE Report WR 90-052 (1991).Google Scholar
5 Walsh, M.P., Bryant, S.L., Schechter, R.S. and Lake, L.W., AIChE.Journal 30, 317–328 (1984).CrossRefGoogle Scholar
6 Lichtner, P.C., Water Resour. Res. 28, 3135–3155 (1992).Google Scholar
7 Lichtner, P.C. and Biino, G.G., Geochim. Cosmochim. Acta 56, 3987–4015 (1992).CrossRefGoogle Scholar
8 Cramer, J.J., Proceedings of the 2nd Int. Conf. Radioactive Waste Management, Can. Nuclear Soc, Winnipeg, Canada, Sept. 7–11, 697–702 (1986).Google Scholar
9 Matsunaga, T., Karametaxas, G., von Gunten, H.R., and Lichtner, P.C., Geochim. Cosmochim. Acta 57, 1691–1704(1993).CrossRefGoogle Scholar
10 Nyman, C., Licentiate Treatise, Royal Institute of Technology, Stockholm, Sweden (1993).Google Scholar
11 Ortoleva, P., Merino, E., Moore, C. and Chadam, J., Am.J.Sci. 287, 979–1007 (1987).CrossRefGoogle Scholar
12 Knapp, R.B., in Scientific Basis for Nuclear Waste Management XIII, edited by Oversby, V.M., Brown, P.W. and (Mater. Res. Soc. Symp. Proc. 176, Pittsburgh, PA, 1986), pp. 695–702.Google Scholar
13 Steefel, C.I. and Van Cappellen, P., Geochim. Cosmochim. Acta 54, 2656–2677 (1990).Google Scholar
14 Bear, J., Dynamics of Fluids in Porous Media, Elsevier, Amsterdam (1972).Google Scholar
15 Noy, D.J., PRECIP: A Program for Coupled Ground water Flow and Precipitation/Dissolution Reactions, UK Nirex Ltd Report NSS/R275 (1990).Google Scholar
16 Hindmarsh, A.C., ODEPACK, a Systematized Collection of ODE Solvers, Lawrence Livermore National Laboratory Report UCRL-88007 (1982).Google Scholar
17 A Natural Analogue Study of Cement-buffered Hyperalkaline Groundwaters and their Interaction with a Sedimentary Host Rock, edited by Alexander, W.R., NAGRA Tech. Rep. NTB91-10, NAGRA, Wettingen, Switzerland (1991).Google Scholar
18 Haworth, A. and Milowdowski, A.E. (private communication).Google Scholar