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Gas Formation in ILW and HLW Repositories, Evaluation and Modelling of the Production Rates and Consequences on the Safety of the Repository

Published online by Cambridge University Press:  28 February 2011

François Besnus  and
Sylvie Voinis
François Besnus
Affiliation:
CEA/IPSN/DAS, Fontenay-aux Roses, France
Sylvie Voinis
Affiliation:
CEA/ANDRA, Fontenay-aux-Roses, France
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Abstract

This paper summarizes the main gas formation mechanisms in deep radioactive waste repositories. Production rates and overall gas volumes were estimated and showed predominance of hydrogen production by anoxic corrosion and radiolysis for French wastes. Gas evolution in the near field has been modeled. First results issued from a sensitivity analysis showed desaturation of the storage cavities for a wide range of parameter values.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 212: Symposium P – Scientific Basis for Nuclear Waste Management XIV , 1990 , 901
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

1. Zuidema, P. and Hoglund, L. O., Impact of production and release of gas in a L/ILW repository. A summary of the work performed within the NAGRA programme, (NEA workshop proc., Paris, 1988)Google Scholar
2. Lever, D. A. and Rees, J. H., Gas generation and migration in waBte repositories, (NEA workshop proc., Paris, 1988)Google Scholar
3. Moreno, L. and Neretnieks, I., Gas production in a SFR repository and its possible consequences for contaminant release, (NEA workshop proc., Paris 1988)Google Scholar
4. Pourbaix, M., Application de l’electrochimie a la science de la corrosion et en pratique, (Cebelcor RT.205, 1972)Google Scholar
5. Marsh, G. P., Taylor, K. J., Sharland, S. M. and Tasker, P. W., An approach for evaluating the general and localized corrosion of carbon steel containers for nuclear waste disposal, (SKB T.R.87-08, 1987)Google Scholar
6. Simpson, J. P. and Schenk, R., Corrosion induced hydrogen evolution on high level waste overpack materials in synthetic groudwaters and chloride solutions, (Sulzer Brothers Ltd. CH-8401 Winterthur, SwitzerlandGoogle Scholar
7. Walton, J. C., Mathematical modelling of large scale nonuniform corrosion: coupling of corrosion, transport, and geochemical processes in nuclear waste isolation, (Nucl. and Chem.Waste Management, Vol.8, pp.143–156, 1988)Google Scholar
8. Shenk, R., Experimente zur korrosionbedingten wasserstoffbildung in endlagern fur mittelaktive abfälle, (NAGRA NTB.83-16, 1983)Google Scholar
9. Langomazino, N., Bitumen and polymer characterization, biodegradation studies, (Contrat CEE n°0095 Task 2, 1987)Google Scholar
10. Perfetini, J. and Langomazino, N., Evaluation of the cement degradation induced by the metabolism products of two fungic strains, (Biodegradation French Corrosion Group, Paris 1988)Google Scholar
11. Marty, J. and Almayrac, J. L., Etude phénoménologique du comportement des gaz dans les puits de stockage de déchets radioactifs, (NT-89 Cg 138B, July 1990)Google Scholar