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Impact of Advanced Fuel Cycles on Geological Disposal

Published online by Cambridge University Press:  15 February 2011

Jan Marivoet  and
Eef Weetjens
Jan Marivoet
Affiliation:
Belgian Nuclear Research Centre SCK•CEN, Institute Environment, Health and Safety, B-2400 Mol, Belgium
Eef Weetjens
Affiliation:
Belgian Nuclear Research Centre SCK•CEN, Institute Environment, Health and Safety, B-2400 Mol, Belgium
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Abstract

In recent years the increasing oil prices and the need for carbon-free energy to limit global warming have resulted in a revival of interests in nuclear energy. Advanced nuclear fuel cycles are being studied worldwide. They aim at making more efficient use of the available resources, reducing the risk of proliferation of nuclear weapons, and facilitating the management of the resulting radioactive waste. Recently, the Red-Impact project has investigated the impact of a number of representative advanced fuel cycles on radioactive waste management, and more specific on geological disposal. The thermal output of the high-level waste arising from advanced fuel cycles in which all the actinides are recycled is reduced with a factor 3 for a 50 years cooling time and with a factor 5 for a 100 years cooling time in comparison with the spent fuel arising from the once-through fuel cycle. This reduction of the thermal output allows for a significant reduction of the length of the disposal galleries and of the size of the repository. Separation of Cs and Sr drastically reduces further the thermal output of the high-level waste, but it requires a long-term management of those heat generating separated waste streams, which contain the very long-lived 135Cs. Recycling all the actinides strongly reduces the radiotoxicity in the waste, resulting in significantly lower doses to an intruder in the case of a human intrusion into the repository. However, the reduction of radiotoxicity has little impact on the main safety indicator of a geological repository, i.e. the effective dose in the case of the expected evolution scenario; for disposal in clay formations, this dose is essentially due to mobile fission and activation products. The deployment of advanced fuel cycles will necessitate the development of low activation materials for the new nuclear facilities and fuels and of specific waste matrices to condition the high-level and medium-level waste streams that will arise from the advanced reprocessing plants.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1193: Scientific Basis for Nuclear Waste Management XXXIII , 2009 , 117
Copyright
Copyright © Materials Research Society 2009

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References

1 Nuclear Energy Outlook 2008 (Nuclear Energy Agency, Paris, 2005).Google Scholar
2 Bhatnagar, V., Casalta, S. and Hugon, M., "Partitioning and Transmutation Research in the Euratom 5th and 6th Framework Programmes," Proc. 8th Information Exchange Meeting on P&T, Las Vegas, 9-11 November 2004 (Nuclear Energy Agency, Paris, 2005).Google Scholar
3 Bhatnagar, V. and Goethem, G. Van, "Overview of the EU Activities on Partitioning and Transmutation Research in the Euratom 6th and 7th Framework Programmes," Proc. 9th Information Exchange Meeting on P&T, Nimes, 25-29 September 2006 (Nuclear Energy Agency, Paris, 2007).Google Scholar
4 Actinide and Fission Product Partitioning and Transmutation; Status and Assessment Report (Nuclear Energy Agency, Paris, 1999).Google Scholar
5 Accelerator-driven Systems (ADS) and Fast Reactors (FR) in Advanced Nuclear Fuel Cycles: A Comparative Study (Nuclear Energy Agency, Paris, 2002).Google Scholar
6 Accelerator Driven Systems: Energy Generation and Transmutation of Nuclear Waste: Status Report (International Atomic Energy Agency, Vienna, 1998), report TECDOC 985.Google Scholar
7 Implications of Partitioning and Transmutation in Radioactive Waste Management (International Atomic Energy Agency, Vienna, 2004) technical reports Series No. 435.Google Scholar
8 A Technical Roadmap for Generation IV Nuclear Energy Systems (US Department of Energy, Nuclear Energy Research Advisory Committee, Washington, 2003), report GIF-002-00.Google Scholar
9 Impact of Advanced Nuclear Fuel Cycle Options on Waste Management Policies (Nuclear Energy Agency, Paris, 2006).Google Scholar
10 Lenza, W. von, Nabbi, R. and Rossbach, M. (Eds.), Red-Impact: Impact of Partitioning, Transmutation and Waste Reduction Technologies on the Final Nuclear Waste Disposal (FZ Julich, 2008) report vol. 15.Google Scholar
11 SAFIR 2: Safety Assessment and Feasibility Interim Report (ONDRAF/NIRAS, Brussels, Belgium, 2001) report NIROND 2001-06 E.Google Scholar
12 "Radiation Protection Recommendations as Applied to the Disposal of Long-lived Solid Radioactive Waste" (ICRP Publication 81), Annals of the ICRP, 28, 4 (2000).Google Scholar
13 Smith, G.M., Fearn, H.S., Delow, C.E., Lawson, G. and Davis, J.P., Calculations of the Radiological Impact of Disposal of Unit Activity of Selected Radionuclides (NRPB, Chilton, UK, 1987) report R205.Google Scholar
14 National Academy of Sciences, Technical Bases for Yucca Mountain Standards (National Academy Press, Washington, 1995).Google Scholar
15 Raj, B., Vijayalakshmi, M., P.Rao, R.V. and K.Rao, B.S., "Challenges in Material Research for Sustainable Nuclear Energy," MRS Bulletin, 33, 327 (2008).Google Scholar
16 Weber, W.J., Navrotsky, A., Stefanovsky, S., Vance, E.R. and Vernaz, E., "Material Science of High-Level Waste Immobilization," MRS Bulletin, 34, 46 (2009).Google Scholar