Waste Safety Activities Relevant to DS284, CRAFT Project

Transcription

1 Waste Safety Activities Relevant to DS284, CRAFT Project Technical Meeting Practical Application of Safety Assessment Methodologies (CRAFT Project) IAEA Headquarters, 9-13 May 2011 Monika Kinker Radioactive Waste and Spent Fuel Management Unit Division of Radiation, Transport and Waste Safety - NSRW IAEA International Atomic Energy Agency

2 Radioactive Waste and Spent Fuel Management Unit Support to Member States in establishing proper safety framework for management of radioactive waste and spent fuel: Development of Safety Standards Provisions for use and application of Safety Standards Joint Convention on the Safety of Spent Fuel and Radioactive Waste Management IAEA 2

3 IAEA 3

4 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 4

5 Development of Safety Standards Outline and work plan Prepared by the Secretariat Review by the Safety Standards Committees and the Commission on Safety Standards Commission on Safety Standards (CSS) Drafting or revising of safety standard by the Secretariat and Consultants Review by the Safety Standards Committee(s) Member States Endorsement by Commission on Safety Standards Nuclear Safety Standards Committee (NUSSC) Radiation Safety Standards Committee (RASSC) Waste Safety Standards Committee (WASSC) Member States = YOU! Transport Safety Standards Committee (TRANSSC) Approval by the IAEA s Director General or BoG * * Safety Requirements approved by BoG * Safety Guides approved by DG IAEA 5

6 IAEA Safety Standards evolving Safety Fundamentals: Current Structure Thematic Areas Facilities & Activities Legal & governmental infrastructure Emergency preparedness & response Management systems Assessment & verification Site evaluation Nuclear power plants Research reactors Fuel cycle facilities Radiation related facilities & activities Waste treatment and disposal facilities Radiation safety Radioactive waste management Decommissioning Rehabilitation of contaminated areas Transport of radioactive material IAEA 6

7 Safety Standards: Predisposal Classification BSS DS 379 Management Systems Small Generators Storage Storage of Spent Nuclear Fuel DS 371 FCFs HLW DS 447 L/ILW Reactors DS 448 Safety Case & Assessment Predisposal IAEA DS 284 7

8 Safety Standards: SC/SA Predisposal (2012?) Safety Case, Assessment Predisposal DS 284 IAEA 8

9 GSR Part 4: Overview of Safety Assessment IAEA 9

10 GSR Part 5, Safety Requirements for Predisposal Management of RW 1. Introduction 2. Protection of Human Health & Environment 3. Responsibilities 4. Steps in the Predisposal Management of RW 5. Development and Operation of RWM Facilities & Activities 1. Government responsibilities 2. National Policy & Strategy 3. Regulatory Responsibilities 4. Operator Responsibilities 5. Safety/Security 6. Interdependences 7. Management systems 8. Waste minimization 9. Characterization and classification 10. Waste treatment 11. Waste storage 12. Waste acceptance for processing, storage and/or disposal 13. Prepare safety case and supporting safety assessment 14. Safety case scope and regulatory compliance 15. Safety case documentation 16. Periodic safety review 17. Facilities location and design 18. Facility construction and commissioning 19. Facilities operation, maintenance, emergency preparedness 20. Decommissioning 21. Nuclear safeguards 22. Existing facilities IAEA 10

11 GSR Part 5, Requirement 14: Scope of the Safety Case and Regulatory Compliance The safety case for a predisposal radioactive waste management facility shall include a description of how all the safety aspects of the site, the design, operation, shutdown and decommissioning of the facility, and the managerial controls satisfy the regulatory requirements. The safety case and its supporting safety assessment shall demonstrate the level of protection provided and shall provide assurance to the regulatory body that safety requirements will be met. Design and operation considered and justified in the safety case Primary aim to ensure safety objectives and criteria set by regulatory body are met The safety case addresses operational safety and all safety aspects of the facility and activities Considerations for reducing hazards to workers, public and environment - normal operation and accident conditions Commensurate with the complexity of the operations and the magnitude of the hazards IAEA 11 11

12 DS 284: Safety Guide for SC and SA 1. Introduction 2. Demonstrating the Safety of Predisposal Management of Radioactive Waste 3. Objectives and Development of the Safety Case for Predisposal 4. Safety Assessment 5. Specific Issues 6. Documenting and Using the Safety Case 7. Regulatory Review Process Safety Case & Assessment Predisposal DS 284 Annex A EXAMPLES OF HAZARDS AND INITIATING EVENTS Annex B TOPICAL ISSUES FOR THE SAFETY ASSESSMENT REVIEW FOR RADIOACTIVE WASTE PREDISPOSAL FACILITIES AND ACTIVITIES Annex C TEMPLATE OF REGULATORY REVIEW REPORT Annex D SADRWMS IAEA 12

13 DS284: Components of the Safety Case IAEA 13

14 DS 284 HISTORY Held up pending development of: Long term structure of the Safety Standards Scope: predisposal versus waste specific DS 348 SR Safety Assessment for Facilities and Activities DS 354 SR on Disposal of radioactive waste Technical Committee Meeting August 1995; September 1997 Consultants Meetings March 1995; June 1996; April 1997; November 1999; April October March 2008 IAEA 14

15 DS 284 BACKGROUND (Cont.) SA REQUIRED BY SAFETY FUNDAMENTALS AND REQUIRMENTS STRUCTURED AND SYSTEMATIC EXAMINATION OF FACILITIES AND ACTIVITIES EXPLICIT DEMONSTRATION OF SAFETY WORKER, PUBLIC, ENVIRONMENT NORMAL OPERATION, ACCIDENT WASTE MANAGEMENT: WASTE FORM AND AMOUNT EFFLUENT ARISINGS CLEARANCE / MATERIAL MANAGEMENT RELATED DEVELOPMENTS SADRWMS IAEA Project: Safety Assessment Driving Radioactive Waste Management Solutions GSR-5 SR for Predisposal Management of Radioactive Waste IAEA 15

16 DS284: Proposal to June 2010 WASSC In order to provide additional guidance on the level of depth and detail warranted for safety cases, it was proposed that the IAEA would develop illustrative safety reports with example safety cases: Centralized RWM Facility NPP waste Dual Use Cask ->SADRWMS, CRAFT PROJECTS IAEA 16

17 Progress in IAEA Requirements for Safety Case, Safety Assessment GSR Part 4: Safety Assessment 1. Assessment of all aspects of a practice that are relevant to protection and safety; includes siting, design & operation of the facility. This normally includes risk assessment and probabilistic SA. 2. Analysis to predict the performance of an overall system and its impact, where the performance measure is the radiological impact or some other global measure of the impact on safety. GSR Part 5, DS284: Safety Case A collection of arguments and evidence in support of the safety of a facility or activity. This will normally include the findings of a safety assessment and a statement of confidence in these findings. IAEA 17

18 SADRWMS Project Safety Assessment Driving Radioactive Waste Management Solutions Long-term Project 1 st Plenary Meeting in 2003 Total of 8 Plenary Meetings, numerous consultancies, workshops Objectives: 1. EXAMINE the application of safety assessment methodology (ISAM, ASAM) 2. DEVELOP, document Safety Assessment Methodology Regulatory Review ---> DS INTEGRATE methodology into software tool (SAFRAN) Safety Case & Assessment Predisposal DS 284 IAEA 18

19 SADRWMS Project Activities April 2005 SAFRAN Tool development began (VINCA test case) Testing in Slovenia, Croatia, Moscow, Belarus, Chile and Cuba Sponsor s Group: SSM (Sweden), NDA (UK) and IRSN (France) Development of new User Interface and Calculation Tool (Ecolego) DS284 drafted, Input provided during 2008 SADRWMS Plenary TINT Facility proposed, chosen for comprehensive testing of SAFRAN TINT test case (development, testing of SAFRAN User Interface) SAFRAN VERSION 1.0, drafting of User Guide and Tutorials, Improvements in Safety Assessment Module DS284 proposal presented to June 2010 WASSC 2011 SAFRAN tool Calculation Tool, SAFRAN User s Guide & Tutorial TINT report Input, proposals to CRAFT IAEA 19

20 IAEA Thank you! 20