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R. MANDOKI Project Manager (Andra/D2I/SI)
Conditions of Be Acceptance in current and future radioactive waste disposal facilities Be Management Workshop – June 28th 2017 R. MANDOKI Project Manager (Andra/D2I/SI)
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Table of contents Andra presentation
Radioactive Waste classification in France IO Waste Routing considerations Origin of Be waste and expected disposal routes Conditions for acceptance on disposal facilities 5.1. VLLW (CIRES) 5.2. LILW-SL (CSA) 5.3. ILW (CIGEO) Recommandations & Conclusion D2I/SI/ Be Management Workshop – June 28th 2017
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A French state owned company ...
1. Andra : Agence nationale pour la gestion des déchets radioactifs National Radioactive Waste Management Agency A French state owned company ... ... in charge of implementing solutions ... for long term radioactive waste management: Research Design, construction, operation, closure and monitoring of disposal facilities Information Turnover : ~335 M€ Staff: ~700 D2I/SI/ Be Management Workshop – June 28th 2017
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2. Radioactive Waste classification in France
Short lived waste (period of main nuclides < 30 years) Long lived waste High level Deep geological disposal Intermediate level Operating Centre de l ’ Aube CSA – Soulaines (LILW – SL – Type A) Low level Low leveL Planned (graphite, radium bearing) Near surface Disposal Very low level Waste CIRES - Morvilliers (VLLW) - TFA In operation since 2003 Expected: m3 Planned In operation since 1992 (ILW_LL) – type B Expected: 180,000 m3 Expected: 1,900,000 m3 A radioactive waste classification based on the disposal pathways National radioactive materials and wastes Wastes location Wastes amounts Expected arising wastes Expected: IL-LL: 75,000 m3 HL: 10,000 m3 Planned D2I/SI/ Be Management Workshop – June 28th 2017
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3. IO Waste Management Process agreed in April 2008
Type B (LILW-LL-MAVL)/Purely tritiated Type A (FMA)/TFA IO Processing Processing Pre - Packaging Package Temporary storage 6 months transport On - site storage (until decomm.) HOST Final condi./packaging Interim storage for Transport FMA or TFA Interim Storage CSFMA/CSTFA Final Disposal D2I/SI/ Be Management Workshop – June 28th 2017
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4. Origin of Be radioactive waste and expected disposal routes
During operation and decommisionning, about 1 ton of (radioactive) Be dust is expected to be produced and will potentially concern 3 waste routes Components containing Be Be contaminted components Operation (activation) Erosion Replacement Maintenance Decommissioning … ILW (type B) LILW-SL (type A) VLLW (TFA) D2I/SI/ Be Management Workshop – June 28th 2017
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4. Be waste expected for disposal
Waste Description and features Primary conditioning VLLW Be dust contamined materials, very little activation + Filters Sealed plastic bags in 200L drums LILW-SL Be dust contamined materials, little activation Sealed plastic bags in 200L drums (to be confirmed) ILW-LL Bulk Be + Be dust contamined materials, high activation Final conditioning to be ensured by France: Option 1 : in 700L drums Option 2 : in IO Hot Cell storage Basket (optimization under study) D2I/SI/ Be Management Workshop – June 28th 2017
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5. COMMON Considerations for Surface Disposal (TFA and type A)
As asbestos, the presence of Be (a CMR class 2 susbtance) induces specific risks in operation, also on the disposal site (drop, collision, fire, …) Waste packages Compaction Grouting Direct disposal D2I/SI/ Be Management Workshop – June 28th 2017
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5. Common considerations for Surface Disposal (TFA and type A)
Human and workers exposure was not taken into account in the safety assessment of the surface facilities. Conditioning options are not open : It depends of the type of waste and associated specifications Specific requirements for the conditioning apply: - to waste compactable at ANDRA sites, and - to waste to be injected with a binder at ANDRA sites. In some cases, some conditioning options are forbidden. In the TBM Waste study (ref. PI.NT.ARPM.14,0062/D), Andra has outlined the conditioning recommendations for each type of waste (VLLW, LILW). D2I/SI/ Be Management Workshop – June 28th 2017
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5.1. Conditions for acceptance on disposal facilities Very Low Level Waste – TFA (CIRES)
VLLW Waste containing Beryllium: There is no limit per package defined at this stage (this could be reconsidered on basis of a precise inventory, conditioning and safety assessment) Conditioning requirements : It is forbidden to use compaction nor injection of a hydraulic binder at CIRES site for waste containing beryllium, regardless of the content levels in question. To avoid the dissemination (release) of this element which is toxic by inhalation, any waste containing beryllium must be conditioned using a leaktight method that complies with the generic requirements applicable to all waste packages, applicable both for : solid blocks of beryllium or for waste contaminated by beryllium dust. In compliance with the specified requirements, the toxic chemical element, beryllium, must be identified and quantified so it can be duly declared to Andra. D2I/SI/ Be Management Workshop – June 28th 2017
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5.2. Conditions for acceptance on CSA disposal facilities Low and Intermediate Level Waste – Short Lived (type A) LILW-SL (Type A) Waste containing Beryllium: There is no limit per package defined at this stage (this could be reconsidered on basis of a precise inventory, conditioning and safety assessment) Conditioning requirements (for Be in solid form or Be dusts) : Andra recommends a conditioning in concrete containers at the producer's site (leak-tight and drop resistant) Waste contaminated with or containing beryllium is not acceptable for treatment in the compaction and injection units at the CSA facility (a study for the acceptance of waste packages containing beryllium concerned by the injection of a binder can nonetheless be foreseen). Based on the inventory per waste package, a drop impact analysis must be carried out to confirm the acceptance of such waste in standard waste packages for direct disposal in the CSA facility To comply with the limits specified in the CSA authorisation for the inventory of each chemical toxin, the requirements for identifying, quantifying and declaring also remain in force. D2I/SI/ Be Management Workshop – June 28th 2017
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5.3. Conditions for acceptance on disposal facilities ILW (CIGEO)
Conditioning requirements for waste containing Beryllium Beryllium belongs to toxic chemicals which must be declared to the project For health risks assessment Waste Acceptance Criteria and Be Requirements will depend on : Design choices Operating mode Safety demonstration CIGEO key Project schedule : DAC Authorization of creation Demand (with Updated WAC) : mid 2018 Active Commissioning phase : … 2030 D2I/SI/ Be Management Workshop – June 28th 2017
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5.3. Step foreseen for the Safety demontration in CIGEO
Waste package characteristics Technological knowledge Site Characteristics Framework and Safety Strategy Functions Required (AF) Description / design of disposal packages and the facility Regulatory framework/reference guidance Scientific knowledge Input data Qualitative analyses Quantitative assessments Strategy - Context Data input – Assessment basis Post closure safety/analysis of uncertainties Post closure Normal Evolution Scenario Impact in normal operation (indicators) Impact of incidental / accidental scenarios ( indicators) Impact of normal and altered scenarios (indicators) Incidental /accidental situations Normal operation Operational safety / risk analysis (AR) Altered Evolution Scenarios Compliance of the safety level with the objectives to be reached and as a function of the stage of the design development ESTABLISHEMENT OF WAC and IDENTIFICATION OF RELATED ACTIVITY CONTROLS Operational D2I/SI/ Be Management Workshop – June 28th 2017
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5.3. what is the CIGEO Project ?
D2I/SI/ Be Management Workshop – June 28th 2017
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6. Recommandations & Conclusion
If the disposal options is the most (or the only) meaningfull, go for waste packages for direct disposal as much as possible : Avoid non blocked pulverulent waste or “free Be” Foresee conditioning installation at Iter site (fixator, cementation, …) Choose a waste package leak tight and drop resistant (1,2 m minimum) Nevertheless, for surface disposal of waste packages containing Beryllium (LLW and LILW-SL), as an alternative to the injection at Iter’s site, a study to check the feasibility of an injection operation at the Andra's sites can be foreseen (despite possible prohibition). For CIGEO (project) : The quantity and physical form of Be waste should be assessed and consolidated as an input data to be taken in the design of the facility. Presently, there is no specified Be limit in the (projet) CIGEO WAC and no obligation to block the waste. Risk analysis, foreseen for the DAC in 2018, may induce restrictions on Be waste. A Framework Agreement allows us to work together to consolidate and optimize the waste management of ITER. D2I/SI/ Be Management Workshop – June 28th 2017
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Thank you for your attention!
D2I/SI/ Be Management Workshop – June 28th 2017
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