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Disposal > Repository Surveillance > Tasks > Release
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Decision About Release According to § 29 StrlSchV
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As in every household, substances accrue in a repository that need to be removed from the facility and disposed of like conventional waste. Among these are tyres, oils, and toilet waste. For this issue, the legal regulations for the protection of the public and the environment provide for a special procedure for nuclear installations, the so-called release procedure.
According to § 29 StrlSchV, radioactive substances and movable objects, buildings and ground areas which have been activated (activation = process through which a material is made radioactive through bombardment with neutrons, protons, or other particles) or contaminated, may only be used or removed as non-radioactive substances if the competent institution has previously released them. This can only be done if the measured values are below the limits set out in the provisions of the Radiation Protection Ordinance. For radioactive waste repositories the Repository Surveillance unit is responsible for this release.
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Reservoir for influent saline solution on the 490-m level
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On account of the risk emanating from radioactive radiation, special precautions have to be taken in a repository. Thus, substances should only be removed from such a facility if it can be guaranteed that no risk to man and environment needs to be feared.
The release of substances is a particularly frequently occurring process in the operation of the Asse repository. To be able to transport the saline solutions flowing from the surrounding rock layers into the Asse salt dome to the decommissioned Mariaglück mine, the individual charges must be released. For this release, BfS as the operator had to prove through expert reports that the influent saline solutions fall below the stringent release values for the radionuclide content (especially tritium). On this basis, the solutions could be released by the Repository Surveillance unit and removed.
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