Radioactive Waste and Spent Fuel Management activities in the IAEA Gérard Bruno Radioactive Waste and Spent Fuel Management Unit Department of Nuclear Safety and Security IAEA International Atomic Energy Agency Global need for RWM: Sources of waste • Waste and spent fuel generation from NPPs • Operation will continue in next decades (about 30 countries) • 7-15 new countries will start to generate waste by 2030 • Decommissioning of nuclear facilities • Medical applications and research • Remediation activities on-going in several countries, • Activities after Fukushima accident will result in large volumes of waste from on-site and off-site decommissioning and remediation • Numerous sites with a large amount of legacy waste • Radium industry • Uranium mining • Military programs IAEA 2 Waste Management at the IAEA • Department of Nuclear Safety and Security • Nuclear Installation Safety • Radiation, Transport and Waste Safety • Waste and Environmental Safety Section • Department of Nuclear Energy • Nuclear Power • Nuclear Fuel Cycle and Waste Technology • Waste Technology Section IAEA 3 IAEA Statutory Obligations (1957) Article III, Functions Paragraph A.6. “ To establish or adopt, in consultation and, where appropriate, in collaboration with the competent organs of the United Nations and with the specialized agencies concerned, standards of safety for protection of health and minimization of danger to life and property (including such standards for labour conditions), and to provide for the application of these standards to its own operation as well as to the operations making use of materials, services, equipment, facilities, and information made available by the Agency …; “ IAEA Statute 1957 4 Global Safety Regime • • • • Legal Instruments Safety Standards International Peer Review Services Knowledge Networks IAEA 5 IAEA and Radioactive Waste Management • The IAEA programme on Radioactive Waste and Spent Fuel Management • Support to the IAEA Member States in establishing a proper safety framework for the management of radioactive waste and spent fuel. • Activities • Development of IAEA safety standards for predisposal management and disposal of radioactive waste and spent fuel, • Assistance to the Member States on the implementation and application of the Safety Standards, • Coordination of the Waste Safety Standards Committee. • Joints convention • Meetings of Contracting Parties of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management. IAEA 6 IAEA Safety Standards • Program initiated 31 March 1960 (INFCIRC/18). • IAEA maintains about 120 safety standards. • Nuclear, radiation, transport and waste safety. • Not legally binding on the Member States, but they can adopt them at their own discretion. • Legally binding on the activities of the IAEA Secretariat. • Published in the “IAEA Safety Standards Series”, • To be purchased as hardcopy • Free-of-charge download IAEA 7 Structure of Safety Standards Under development Under development Under development Under development Recently Published Under development IAEA 8 IAEA Safety Standards Categories Fundamental Safety Principles Requirements – Legal, Technical, & Procedural Safety Imperatives Safety Fundamentals Guidance on Best Practice to Meet Requirements Safety Requirements SafetyIAEA Guides 9 Safety Fundamentals • Policy document of the IAEA Safety Standards Series: • States the basic objectives, concepts and principles involved in ensuring protection and safety • Comprised of 10 safety principles • Principle 7: Protection of present and future generations. People and the environment, present and future, must be protected against radiation risks IAEA Safety fundamentals • • • SF-1 • • • • • • • IAEA Responsibility for safety Role of government Leadership and management for safety Justification of facilities and activities Optimisation of protection Limitation of risks to individuals Protection of present and future generations Prevention of accidents Emergency preparedness and response Protective actions to reduce existing or unregulated radiation risks Safety Requirements • Elaborate on the basic objectives and concepts of SF-1 as they apply to a specific activity or facility • Should be concise and reflect the ‘What’ and ‘Who’ of safety management associated explanatory text should describe ‘Why’ the requirements exist • Use “shall” statements IAEA Safety Guides • Focus on ‘How’ safety requirements can be met • Guidance on best practices to meet requirements • Use “should” statements IAEA Status of Safety Standards • IAEA Safety standards are • Binding for IAEA’s own activities • Not binding on the Member States (but may be adopted by them) EXCEPT in relation to operations assisted by the IAEA: • Integrated Regulatory Review Service • Technical Cooperation Fund work • States wishing to enter into project agreements with the IAEA IAEA Safety Standards Committees Commission and committees CSS COMMISSION ON SAFETY STANDARDS NUSSC IAEA RASSC WASSC TRANSSC 15 Development of Safety Standards Outline and work plan Prepared by the Secretariat Review by the Safety Standards Committees and the Commission on Safety Standards MS involved Drafting or revising of safety standard by the Secretariat and Consultants Review by the Safety Standards Committee(s) Endorsement by Commission on Safety Standards IAEA Member States Review period: about every 5 years Approval by the IAEA’s Director General or BoG * * SF and SRs approved by BoG * SGs approved by DG 16 Safety Standards: Predisposal of RW Radiation Protection DS 448 DS 447 Storage DS 477 DS 489 Predisposal Management of RW from Reactors IAEA Predisposal Management of RW from FCFs Under revision to include lessons leant from Fukushima accident Revision 17 Safety Standards for Disposal DS 477 IAEA Revision 18 Safety Standards - Decommissioning To be combined (DS452) 1999 1999 2001 2004 DS402 DS403 Under revision IAEA DS404 2006 2008 Feedback and Review • Feedback • Review Safety standards survey: • About every 5 years • Revision of DPPs • Following the process of -Questionnaire (form) - Email: Safety.Standards@iaea.org standards' development (Committees, CSS, BOG, etc) http://wwwns.iaea.org/standards/feedback.htm IAEA …. where you can find the status of SS… Important to note IAEA 21 JOINT CONVENTION ON THE SAFETY OF SPENT FUEL MANAGEMENT AND ON THE SAFETY OF RADIOACTIVE WASTE MANAGEMENT • A legally binding agreement between CPs • The first international binding legislation in the area of safety of spent fuel and radioactive waste management • Based on the IAEA Safety Fundamentals for RWM (1995) • An “Incentive” convention • A “sister” convention of the Nuclear Safety Convention IAEA Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management Objectives • To achieve and maintain a high level of safety worldwide in spent fuel and radioactive waste management • To ensure that there are effective defences against potential hazards so that individuals, society and the environment are protected, now and in the future • To prevent accidents and mitigate their consequences should they occur IAEA 23 Joint Convention • Applications • Applies to facilities and activities of civil programmes • Defence programmes when transferred permanently to civil control • Reporting and Meetings • National report prepared every three years • Review meetings are organized every 3 years • Cooperation with the EU • “Waste Directive” (Council Directive 2011/70/EURATOM) is aligned with JC. • Almost all EU countries are contracting parties to the JC. IAEA 24 Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management • Secretariat of the Joint Convention • Organization of the JC meetings: Organizational, Review Meetings, Officers meetings, General Committee meetings, regional promotional meetings and related activities • 69 Contracting Parties as of October 2013 • Review meetings: 1st review meeting: November 2003 2nd review meeting: May 2006 3rd review meeting: May 2009 4th review meeting: May 2012 5th Review Meeting: 11-22 MAY 2015 http://www-ns.iaea.org/conventions/waste-jointconvention.htm IAEA International Harmonization Projects & Working Groups related to Demonstration of Safety IAEA International Atomic Energy Agency 26 26 Standards Application Assessment performance DeSa/ FaSa SADRWMS CRAFT Generation Models intercomparison Impacts evaluation Progress on the DeSa Project Disposal ISAM/ EMRAS I and II ASAM/ PRISM B. Batandjieva, GEOSAF WSS, NSRW MODARIA 3rd EMRAS Project Meeting Safety Demonstration Framework for Vienna Management of 21-25 November 2005, IAEA, IAEA Radioactive Waste and Decommissioning International and Harmonization Projects organized by WES • CRAFT (successor to SADRWMS) • Application of GSG-3, SADRWMS methodology & SAFRAN Tool • Illustrative examples to complement SG (DS284) • PRISMA • Develop Model Safety case development / implementation for near-surface disposal • GEOSAF I / II • Safety on geological disposal • Regulatory expectations throughout development and operation • Assessment – engineering, site, radiological impact, integration • Working Group for the Dual Use Cask for Spent Nuclear Fuel • Safety case covering both transportation / storage • Extended periods of storage and meeting transport requirements • HIDRA • Human intrusion for both geological / near-surface disposal facilities • Relationship with siting/ designing/ waste acceptance criteria IAEA International Atomic Energy Agency 28 SADRWMS Project Safety Assessment Driving Radioactive Waste Management Solutions Long-term Project • 1st Plenary Meeting in 2003 • Final Plenary in 2010 Objectives: 1. EXAMINE the application of safety assessment methodology (ISAM, ASAM) 2. DEVELOP, document • Safety Assessment Methodology • Regulatory Review • ---> GSG-3 3. INTEGRATE methodology into software tool (SAFRAN) IAEA 29 CRAFT – Project Complementary Safety Reports, Development and application to Waste Management Facilities Project for development of complementary guidance • GSG-3: The Safety Case and Safety Assessment for the Predisposal Management of Radioactive Waste • Required by WASSC, to cover the range of applications in GSG-3 Applications • Long Term Storage Facilities • Existing Storage Facilities • Waste Processing Facilities • Provide support on the different application of SAFRAN tool, and review the SAFRAN forum for any developments or necessary changes. 4 Year Project • 1st Plenary May 2011 • 2nd, 3rd Plenaries 2012, 2013 • Final Plenary October 2014 IAEA 30 PRISMA - Practical Illustration and Use of the Safety Case Concept in the Management of Near-Surface Disposal Application Focus of PRISM: • Components and expectations of the safety case • Evolution over the lifecycle of a near-surface radioactive waste disposal facility • Decision making at different stages in the facility lifecycle, using the safety case Objective of PRISMA: • Development of a generic safety case following the PRISM approach Meeting • 1st plenary October 2013 • 2nd plenary October 2014 IAEA 31 GEOSAF project (2008-2011) Demonstration of SAFety of GEOlogical disposal A forum to exchange ideas and experience in developing / reviewing SC a platform for knowledge transfer Harmonization in approaches to demonstrating the safety of geological disposal Review of the Draft Safety Guide on The Safety Case and Safety Assessment for Radioactive Waste Disposal To identify issues related to the development of the SC that need clarification or further development IAEA European Pilot Study review GEOSAF The Questionnaire ‘Long Term Safety’ The operational safety companion report 32 GEOSAF II (2012-2014/2015): Objective Integration of post-closure safety and operational safety into the Safety Case Post Closure Safety ‘Initial state’ of the Geological Disposal Integrated Safety Case Operational Safety IAEA 33 GEOSAF II : main topics Operational safety • Safety in operation – protection of workers • Impact of operations on long term safety Long term safety Definition of the ‘Initial State’ of the facility, where Operational phase ends and Postclosure phase starts. Integrated Safety Case + Integration Operational Safety: Information gathering and key findings on national GD programmes Contradicting operational safety and post-closure safety requirements Classification of SSCs and its implication on operational safety and post-closure safety IAEA 34 Joint Working Group on Guidance for an Integrated Safety Case for Dual Purpose Casks for SNF Objectives: to address the safety demonstration for dual purpose casks in terms of extended periods of storage and to meet transport requirements at end of storage period Scope of the document: Storage period – 50 years (short term) / 100 years (long term) Metallic casks (consideration for canisters being added later) Expected outcomes: • IAEA Safety Report containing recommendations and guidance for the structure and contents of an Integrated Safety Case w consideration of the interface issues between storage and transport casks. • Recommendations for changes to be made to existing IAEA requirements and guidance relevant to the licensing and use of Storage and Transport Casks for SNF IAEA 35 HIDRA - Human Intrusion in the context of Disposal of Radioactive Waste • Addressing human intrusion in context of the safety case • Near surface and geologic radioactive waste disposal facilities, • VLLW facilities, • Facilities for short- and/or long-lived L/IL, • Facilities for HLW, Spent Fuel and boreholes. • Results • Guidance on optimization of siting, design and waste acceptance criteria within the context of a safety case. • Catalogue of “measures” that can be used to reduce the likelihood and/or consequences associated with human intrusion • Input for the further development of IAEA Safety Standards 1st plenary meeting November 2013 Annual plenary meeting & Task group activities 3 task groups: Technical / Societal / Design aspects IAEA 36 International Networks • URF: Underground Research Facilities • IAEA Network of Centres of Excellence • To establish the network of international expertise for the efficient development of safe nuclear waste isolation systems • DISPONET: International Low Level Waste Disposal Network • To coordinate support Member States with less advanced programmes for disposal of low level waste • Forum for exchange of information and experience • LABONET: Intern. Network of Laboratories for Nuclear Waste Characterization • To support Member States with less advanced nuclear programmes for characterization of radioactive waste, • To develop a training and demonstration activities • Forum to share experience and information on good practice IAEA 37 Peer Reviews • Yucca Mountain Site Characterisation Project (USA) • Near Surface Disposal (Australia) • IAEA-EC-Ukraine (WWER review, Ukraine) • Site Characterisation (South Korea) and selection (Lithuania) • COVRA activities (Netherlands) • Disposal (Russia, planned), etc. IAEA 38 IAEA Technical Co-operation Programme • TC-cycle 2014-2015 • More than 80 TC projects related to RWM in 37 countries in all regions • Related to waste processing, storage and disposal of LLW • Assistance for geological disposal of SF and HLW • Mostly focused on development of adequate policy and long-term strategy/programme for SF/HLW IAEA 39 Training Courses and Workshops • Safety of Radioactive • • • • • • Waste Management Safety Assessment for Near Surface Disposal Waste Acceptance Criteria Legal and Regulatory framework Decommissioning Discharge Control Remediation IAEA Training Material (30 Modules) and Reference Syllabus Lecture 1 - International Safety Standards, IAEA Course, Clausthal 2010 (B Batandjieva) 40 Information Exchange http://wwwIAEA pub.iaea.org/MTCD/meetings/meetings. asp Lectu 41 re 11- Other current and future activities • ARTEMIS - IAEA Radioactive Waste Management Integrated Review Service • Performed on request of Member States • Independent expert opinion and advice on RW and SNF management • Covers both safety and technical considerations • ILW disposal • Cooperation with Fukushima prefecture • Radiation protection, Remediation, Waste management (off-site) • Revision of waste management related safety standards • SSG-15 on storage of SNF in the light of Fukushima • Predisposal RWM in the Aftermath of Severe Nuclear Accident IAEA 42 Future Activities • Contribution to the IAEA Spent Nuclear Fuel Management Conference (2015) • Proposal for an International Conference on the Safety of Radioactive Waste Management (2016) • International Conference on Decommissioning of Nuclear Facilities and Environmental Remediation of Nuclear Sites IAEA 43 2014 Scientific Forum IAEA 44 Waste Classification Purpose - for safety, engineering and regulatory aspects: • Radioactive waste management strategies, planning and designing waste management facilities • Facilitating record keeping and giving a broad indication of the potential hazards involved in the various types of waste at the operational level • Communication between interested parties by providing well understood terminology (e.g., Joint Convention) IAEA 45 Classification Systems Vs WACriteria Waste classification system ≠ WAC • Waste classification systems: national system of classification for managing all types of radioactive waste. Do not specify criteria for individual facilities • WAC – Specifications for waste to meet to be accepted in a particular facility. IAEA 46 Different ways to classify waste • By origin: Nuclear fuel cycle, isotope production,.. • By physical state: Solid, liquid, gaseous • By activity concentration: LLW, ILW, HLW • By half-life: Short-lived waste, long-lived waste • By Operational or disposal purposes, heat emitting or not… IAEA 47 The IAEA Waste Classification - GSG Link between types of waste and management options • Exempt waste (EW) • Very low level waste (VLLW) • Very short lived waste (VSLW) • Low level waste (LLW) • Intermediate level waste (ILW) • High level waste (HLW) IAEA Exempt Waste (EW) Waste that meets the criteria for clearance, exemption or exclusion from regulation control for radiation purposes as described in Safety Guide RS-G-1.7 “Application of the Concepts of Exclusion, Exemption and Clearance” (2004) IAEA Very Low Level Waste (VLLW) • Does not necessarily meet the criteria of exempt waste • Does not need a high level of containment and isolation • Suitable for disposal in near surface landfill type facilities with limited regulatory control • Typical waste includes soil and rubble with low levels of activity concentration • Concentrations of longer lived radionuclides are generally very limited IAEA Very Short Lived Waste (VSLW) • Waste that can be stored for decay over a limited period of up to a few years and subsequently cleared from regulatory control for uncontrolled disposal, use or discharge. • This class includes waste containing primarily radionuclides with very short half-lives often used for research and medical purposes. IAEA Low Level Waste (LLW) • Above clearance levels, but with limited amounts of long lived activity • Requires robust isolation and containment for periods of up to a few hundred years • Suitable for disposal in engineered near surface facilities • LLW cover a broad range of materials and may include: • SL radionuclides at higher levels of activity concentration and • LL radionuclides but at relatively low levels of activity concentration IAEA Intermediate level waste (ILW) • Greater degree of containment and isolation than that provided by near surface disposal • But no provision for heat dissipation during storage and disposal • May contain LL radionuclides, in particular alpha emitting radionuclides • Will not decay, during the IC period, to level of activity conc. acceptable for NS disposal • Disposal at greater depths than near surface disposal IAEA High Level Waste (HLW) • Levels of activity concentrations high enough to generate significant quantities of heat by the radioactive decay process or • Large amounts of long lived radionuclides that need to be considered in the design of a disposal facility for such waste • Disposal in deep, stable geological formations, usually several hundreds m or more is the generally recognized option for disposal IAEA Activity content HLW high level waste (deep geologic disposal) ILW intermediate level waste (intermediate depth disposal) LLW low level waste (near surface disposal) VSLW very short lived waste (decay storage) VLLW very low level waste (landfill disposal) EW exempt waste (exemption / clearance) Half-life IAEA WASTE TYPES & RELEVANT DISPOSAL OPTIONS VSLW VLLW LLW Activity, half-life IAEA ILW HLW
© Copyright 2024