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About the possibility of disposal of HLRW in deep boreholes in Germany

Bracke, Guido; Charlier, Frank; Liebscher, Axel; Schilling, Frank R.; Röckel, Thomas

Abstract:
Using deep boreholes for the final disposal of high-level radioactive waste (HLRW) can take advantage of multiple geologic barriers as safety features and aims for the safe containment of radionuclides by containment-providing rock zones (CPRZ). The great depth efficiently prolongs or hinders radionuclide transport and also impedes proliferation. Finally, there may be a time benefit with regard to technical implementation and costs. Due to the phase-out from nuclear energy in Germany the number of boreholes could be less than 100. A simplified, generic safety concept, and the requirements for the diameter of boreholes and containers are derived in this paper. Furthermore, the operational safety of emplacement, the retrieval of waste and sealing of the boreholes is discussed. It is outlined that boreholes can be sealed quickly and over long distances with proven technologies, for example, using the creep properties of salt rock formations. This concept is assessed for its compliance with the safety requirements of the German Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB), and the requirements and criteria for site selection defined by the German commission on “Storage of high-level radioactive waste”. ... mehr

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Volltext §
DOI: 10.5445/IR/1000072956
Originalveröffentlichung
DOI: 10.3390/geosciences7030058
Scopus
Zitationen: 2
Coverbild
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 2076-3263
urn:nbn:de:swb:90-729560
KITopen-ID: 1000072956
HGF-Programm 35.14 (POF III, LK 01)
Erschienen in Geosciences
Band 7
Heft 3
Seiten Art. Nr. 58
Schlagworte high-level radioactive waste, deep boreholes, final disposal, safety analysis
Nachgewiesen in Scopus
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