Safety Assessment for the Kozloduy National Disposal Facility in Bulgaria - 13507
- DBE TECHNOLOGY GmbH, Eschenstr. 55, D-31224 Peine (Germany)
- Westinghouse Electric Spain SAR, Padilla 17, E-28006 Madrid (Spain)
- SERAW, 52 A Dimitrov Blvd, 6 Fl., 1797 Sofia (Bulgaria)
Due to the early decommissioning of four Water-Water Energy Reactors (WWER) 440-V230 reactors at the Nuclear Power Plant (NPP) near the city of Kozloduy in Bulgaria, large amounts of low and intermediate radioactive waste will arise much earlier than initially scheduled. In or-der to manage the radioactive waste from the early decommissioning, Bulgaria has intensified its efforts to provide a near surface disposal facility at Radiana with the required capacity. To this end, a project was launched and assigned in international competition to a German-Spanish consortium to provide the complete technical planning including the preparation of the Intermediate Safety Assessment Report. Preliminary results of operational and long-term safety show compliance with the Bulgarian regulatory requirements. The long-term calculations carried out for the Radiana site are also a good example of how analysis of safety assessment results can be used for iterative improvements of the assessment by pointing out uncertainties and areas of future investigations to reduce such uncertainties in regard to the potential radiological impact. The computer model used to estimate the long-term evolution of the future repository at Radiana predicted a maximum total annual dose for members of the critical group, which is carried to approximately 80 % by C-14 for a specific ingestion pathway. Based on this result and the outcome of the sensitivity analysis, existing uncertainties were evaluated and areas for reasonable future investigations to reduce these uncertainties were identified. (authors)
- Research Organization:
- WM Symposia, 1628 E. Southern Avenue, Suite 9-332, Tempe, AZ 85282 (United States)
- OSTI ID:
- 22225086
- Report Number(s):
- INIS-US-13-WM-13507; TRN: US14V0663046041
- Resource Relation:
- Conference: WM2013: Waste Management Conference: International collaboration and continuous improvement, Phoenix, AZ (United States), 24-28 Feb 2013; Other Information: Country of input: France; 3 refs.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BULGARIA
COMPLIANCE
DECOMMISSIONING
EVOLUTION
GROUND DISPOSAL
ITERATIVE METHODS
NUCLEAR POWER PLANTS
PLANNING
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTES
RISK ASSESSMENT
SENSITIVITY ANALYSIS
URBAN AREAS
WWER TYPE REACTORS