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Host rocks are rock types that are suitable for a repository for radioactive waste. In Germany, these are salt rock, argillaceous rock (clay), and crystalline rock (granite).
Storage facilities are used for the temporary storage of radioactive waste. Storage is currently necessary because no final repositories for radioactive waste are available as yet.
"Long-term safety documentation is to show that the construction (if applicable), the operation and the after-care phase of a mine, where wastes shall be disposed of, will have no negative effects on the biosphere.." This quotation from the Stowage Ordinance also applies to a repository for radio
A. G. Muñoz (GRS), D. Schild (KIT - INE)
GRS publishes new version of its AC² code package
"The Internet is on fire" – that was the message in mid-December 2021 when a security loophole in the Java framework log4j became known, making a wide range of cyber-attacks possible. The Federal Office for Information Security then raised a "red" alert, the highest warning level. Quite a number of companies around the world have turned out to be affected. On behalf of the Federal Ministry for the Environment, GRS experts are analysing cyber-attacks and security incidents that may also be relevant for German nuclear facilities and installations in order to protect them accordingly.
On 31 December 2021, three of the remaining six German nuclear power reactor units will cease power operation: Brokdorf, Grohnde and Gundremmingen C. Brokdorf has been supplying electricity to the grid since December 1986, Grohnde and Gundremmingen C since the beginning of 1985 - together, these reactors have been in operation for over a hundred years. The final three units (Isar 2, Lingen and Neckarwestheim II) will be shut down on 31 December 2022.
For us, sustainability means that we do not think of our environment, our life (together), our economic actions and our work separately but rather as a whole, with each affecting the other. It means that we are aware of our social responsibility and act in a resource-conserving manner.
Claystone, salt rock or granite – it is in one of these three host rocks that a repository for high-level radioactive waste is to be constructed in Germany. This is where the waste is to be safely contained for one million years. In a current project carried out in GRS's geoscientific laboratory, research is being conducted into how the properties of claystone formations are changed by the waste emplaced.