// Disposal Technology and Specialpurpose Machines, Waste Management Strategies and Methods
KOREKT
Development of technical concepts for the retrieval of repository containers containing heat-generating radioactive waste and spent fuel elements from a high-level radioactive waste repository in crystalline rock
During the operational phase of the repository, the principle of reversibility of decisions is ensured through the retrievability of waste. The KOREKT project (FKZ 02E11728) focused on developing technical concepts for the retrieval of high-level radioactive waste repository containers for current repository concepts in crystalline rock. Although a timeframe of several decades can be assumed for retrieval, a comparison shows that it requires less time for mining activities than for excavation and disposal. The greatest uncertainty arises from the challenging effort required for tunnel support and the retrieval process itself. For the concepts of "overlapping final repositories" and "multiple final repositories," the retrieval process follows the same approach as envisaged in comparable disposal concepts in salt and clay rock. In the modified KBS-3 concept, the application of known retrieval concepts from Scandinavia is complicated by the preference for a Ca-bentonite. Furthermore, the very time-consuming flushing process seems to violate § 13 (2) of the Endlagersicherheitsanforderungsverordnung: "The retrieval must be planned in such a way that the expected technical and temporal effort required does not disproportionately exceed that of disposal." Mechanical methods have been identified as an alternative.
Contact
Research & Development
info@bge-technology.de
Short Infos
Runtime: 2018 - 2022
Client:
Bundesministerium für Wirtschaft und Technologie (BMWi), vertreten durch das Karlsruher Institut für Technologie, beauftragter Projektträger Karlsruhe PTKA
Funding Code:
02E11728
Partner:
Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Deutschland
Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH (GRS), Deutschland
Publications
// Forschungsbericht
Entwicklung technischer Konzepte zur Rückholung von Endlagerbehältern mit wärmeentwickelnden radioaktiven Abfällen und ausgedienten Brennelementen aus einem HAW-Endlager in Kristallingestein
Author(s): Philipp Herold, Andreas Keller, Juliane Leonhard, Rocio Paola León Vargas, Niklas Bertrams
Abschlussbericht des Forschungsvorhabens KOREKT
Language: Deutsch
Herold P.; Keller A.; Leonhard J.; León Vargas R. P.; Bertrams N. (2021): Entwicklung technischer Konzepte zur Rückholung von Endlagerbehältern mit wärmeentwickelnden radioaktiven Abfällen und ausgedienten Brennelementen aus einem HAW-Endlager in Kristallingestein. KOREKT: Development of technical concepts for the retrieval of repository containers containing heat-generating radioactive waste and spent fuel elements from a high-level radioactive waste repository in crystalline rock. BGE TEC 2020-28. BGE TECHNOLOGY GmbH (BGE TEC). Peine
23.07.2021