The regional workshop on radioactive waste primary characterization took place on 19-23 November in Visaginas (Lithuania) at Ignalina NPP (INPP) site in the framework of implementation of IAEA project RER/9150 “Improving Capabilities to Efficiently Implement Large Ongoing Decommissioning Projects and Waste Management with Minimization of Risks Based on Initiatives and Potential Synergies”. Except for Ignalina NPP experts, the representatives of the regulatory bodies, technical support organizations, operators and Ukrainian scientific institutes (SNRIU, SSTC NRS), Armenia (VNPP), Russia (SEC NRS), Romania (CNCAN, AN&DR, INR Pitesti), Lithuania (VATESI, LEI), Hungary (Isotoptech Zrt) and Bulgaria (SE RAW) participated in this workshop.
Photo: Ignalina NPP Press Service
During the regional workshop, IAEA experts presented a set of lectures on various aspects of decommissioning of nuclear facilities (NF) and characterization of radioactive waste (RAW), in particular, on the differences in the management of radioactive waste generated at NF decommissioning and operation; radwaste minimization at NF decommissioning; national approaches to management of very low-level radioactive waste; radiological characterization of the radwaste (review of non-destructive methods of radwaste characterization, gamma-spectrometry, analysis of liquid radwaste samples, problems with radionuclides that are difficult to measure); interaction with all interested parties at NF decommissioning.
The technical visit to Ignalina NPP took place in the framework of the regional workshop. Workshop participants visited Ignalina NPP premises, turbine and reactor halls, decontamination and fragmentation facilities, installation of radioactive material release from regulatory control, very low-level radioactive waste buffer storage facility, cemented radwaste storage facility and low and intermediate level radioactive waste processing complex.
Photo: Ignalina NPP Press Service
In compliance with regional workshop agenda, participants from different countries presented national presentations on the experience and regulatory framework of their countries that relate to NF decommissioning and radioactive waste management. Kateryna Fuzik, engineer of NF Decommissioning and Nuclear Material Handling Laboratory of the State Scientific and Technical Center for Nuclear and Radiation Safety, presented national presentation “Current State of Radioactive Waste Management in Ukraine” which highlighted the problem of characterizing radwaste of various origins in facilities for the management of radioactive waste in Ukraine.
“Currently, Lithuania develops the radwaste management infrastructure at Ignalina NPP site. Low and intermediate-level radioactive waste processing complex is under commissioning, radwaste surface and pre-surface disposal facilities are under construction. Ignalina NPP has accumulated considerable experience in management of the radwaste generated during operation and decommissioning, in particular, experience that relates to radwaste characterization, their classification, decontamination, release from regulatory control, reprocessing and storage. Participation in this regional workshop allowed us to improve our knowledge in the field of NPP decommissioning and radwaste management, as well as to share the Ukrainian experience», - mentioned Kateryna Fuzik.