| Title |
Decommissioning of radon type radioactive waste storage facility in Lithuania |
| Authors |
Šimonis, Audrius ; Poškas, Gintautas ; Poškas, Povilas ; Klevinskas, Gintautas |
| ISBN |
9789201553232 |
| Full Text |
|
| Is Part of |
Radioactive Waste Management Solutions for a Sustainable Future Proceedings of an International Conference Vienna, Austria, 1–5 November 2021.. Vienna : IAEA (International Atomic Energy Agency), 2023. p. 1-8.. ISBN 9789201553232 |
| Abstract [eng] |
Maišiagala Radioactive Waste Storage Facility (MRWSF) in Lithuania is a Radon type disposal facility that had been in operation from 1963 till 1988 and was closed in 1989. It consists of a subsurface concrete vault with an overall volume of about 200 m3. The vault was filled to about 60 % with legacy radioactive waste (RW, ~114 m3) generated at industrial, medical, military, and scientific research institutions. The RW was concrete grouted layer by layer inside the vault cells. Since 2002, it has been supervised by the SE Radioactive Waste Management Agency (RWMA), which was established in 2001 to deal with RW disposal. In 2019, after reorganization by merging RWMA to SE Ignalina NPP, the supervision of MRWSF was transferred to SE Ignalina NPP which is also is charge of MRWSF decommissioning. In 2016, the decision was taken to retrieve the RW from MRWSF and transport it to Ignalina NPP for further management. The site of MRWSF needs to be remediated and released for unrestricted use. In the paper, a detailed description of MRWSF and the waste loaded in the vault is provided. The selection of the decommissioning strategy based on the MCDA analysis is described. The auxiliary systems designed in the Demolition Project for the retrieval and transport of RW to Ignalina NPP are analyzed. Main safety issues analyzed in the Safety analysis report are highlighted. |
| Published |
Vienna : IAEA (International Atomic Energy Agency), 2023 |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2023 |
