The experts of the State Scientific and Technical Center for Nuclear and Radiation Safety last week participated in the workshop “Radioactive Waste in Ukraine. Current Situation and Prospects”. Oleksii Tokarevsky, Head of Laboratory for Safe Radioactive Waste Management of the Decommissioning Department, prepared and presented the information.
During the event, the participants learned more about the types of radioactive waste, where and how it is formed, about the volumes of radwaste in Ukraine and about the radwaste management facilities that are under operation in Ukraine or that are planned to be constructed in the near future. It was stated that the majority of radwaste in Ukraine is of Chornobyl origin.
The expert of the Decommissioning Department told the audience about a new system of radwaste classification depending on the type of facilities in which this radwaste can be disposed of. Therefore, very low-level waste can be disposed in surface disposal facilities, low-level waste – in near-surface facilities (at depth up to several tens of meters), intermediate-level waste – in medium-depth facilities (up to several hundred meters), and high-level waste – only in deep repositories.
Specific attention should be paid to safety issues of radwaste long-term storage. Oleksii Tokarevsky noted that this issue is relevant at least for two facilities: centralized long-term storage facility for radiation sources (CLTSF) and long-term storage facility for vitrified high-level waste of reprocessed WWER-440 spent fuel returned from the Russian Federation. The first storage facility is already built and is at the hot test stage. The second storage facility is at the design stage.