Hostname: page-component-76fb5796d-skm99 Total loading time: 0 Render date: 2024-04-27T16:51:52.927Z Has data issue: false hasContentIssue false

Development of a Preliminary Performance Assessment Methodology for Design and Siting of a LLW Repository in Italy

Published online by Cambridge University Press:  21 March 2011

Piero Risoluti
Affiliation:
ENEA, New Technologies, Energy and Environment National Authority, Rome, Italy
Giancarlo Ventura
Affiliation:
ENEA, New Technologies, Energy and Environment National Authority, Rome, Italy
Piercarlo Ciabatti
Affiliation:
Hydrocontrol, Research and Training Centre for Water Systems Control, Cagliari, Italy
Get access

Abstract

A preliminary performance assessment (PA) analysis for the LLW Repository in Italy is described in this paper. In particular, the PA analysis of the so called SA site is reported. The AMBER code has been used for the setting up of radionuclides transport simulation model both in the near-field and geosphere. The performance assessment analysis preliminarily showed that the SA site was likely to be suitable, in geological and hydrogeological terms, for hosting a LLW Repository. Total dose to the critical group for both a normal evolution scenario and cover degradation scenario was 4.2 × 10−3 mSv/year, approximately one order of magnitude lower than the 10−2 mSv/year dose constraint adopted in this study.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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. Berner, U. R. (1992) – Evolution of pore water chemistry during degradation of cement in a radioactive waste repository environment – Waste Management, vol. 12, pp. 201219.Google Scholar
2. IAEA (1995) – Safety assessment of near surface radioactive waste disposal facilities: model intercomparison using simple hypotetical data (Test Case 1). Firs report of NSARS. International Atomic Energy Agency, IAEA-TECDOC-846, Vienna.Google Scholar
3. IAEA – ISAM (1999) – Derivation of quantitative acceptance criteria for disposal of radioactive waste to near surface facilities: develpment and implementation of an approach. Draft safety report. Working document, version 3.0, March 1999, Vienna.Google Scholar
4. , Nirex (1997) – An assessment of the post-closure performance of a deep waste repository at Sellafield. Volume 3: the groundwater pathway. Nirex Science report n. S/97/012.Google Scholar
5. Freeze, A. R. and Cherry, J.A. (1979) – Groundwater. Prentice-Hall Inc. Englewood Cliffs, New Jersey.Google Scholar
6.QuantiSci Ltd. (1998) – AMBER 4.0 Getting Started Manual. Henley-on-Thames (U.K.).Google Scholar
7. Stenhouse, M. J. (1994) – Sorption databases for crystalline rock, marl and bentonite for performance assessment. Nagra Technical Report NTB 93-06. Nagra, Wettingen.Google Scholar