JNES and Activities in Radioactive Waste Management

Transcription

1 EUROSAFE Forum 2006, Paris JNES and Activities in Radioactive Waste Management November 13, 2006 Dr. Hideki Nariai President, JNES (Japan Nuclear Energy Safety Organization)

2 Contents Nuclear Facilities in Japan JNES s Profile Technical Support for Regulation on Radioactive Waste Management 2-1-

3 Nuclear Facilities in Japan Nuclear Power Plants - In Operation : 55 units (23 PWRs, 32 BWRs) - Under Construction : 3 units (1 PWR, 1BWR, 1 FBR) - Under Planning : 11 units (2 PWRs, 9 BWRs) - Under/Preparing Decommissioning : 2 units (1 GCR, 1 ATR) Fuel Cycle Facilities (Rokkasho) Enrichment : - In Operation Reprocessing : - Under Construction MOX Fuel Fabrication : - Under Planning Low-Level Waste Repository : - In Operation -2-3

4 Nuclear Power Plants in Japan (as of July 2006) :O perating :U nder C onstruction :O n Planning Stage :C eased uction tage 2006) Agency (As of M ay 31,2006) Japan Atom ic Energy Agency FBR M O N JU ATR FU G EN H okkaido E.P.C o Tom ari Sapporo E.P.D evelopm ent C o. O hm a H okuriku E.P.C o. Tohoku E.P.C o. A om ori Shika 1 2 H igashidori 1 2 間 O nagaw a KansaiE.P.C o. N am ie-o daka M iham a O hi Sendai Tokyo E.P.C o. Takaham a H igashidori 1 2 Sapporo N iigata Fukushim a C hugoku H okkaido E.P.C E.P.C o. o Fukushim a D aiichi E.P.D evelopm ent C o. Shim Tom ane ari Fukushim a D aini O hm a Kanazaw a Kam inoseki 1 2 Kashiw azaki-kariw a H okuriku E.P.C o. Tohoku Fukui E.P.C o. M ito Shikoku E.P.C o. A om ori Shika 1 2 H igashidori 1 2 Tokyo Japan Atom ic Pow er C o. Ikata M atsue 間 Shizuoka O nagaw a Tokai Kyushu E.P.C o. Yam aguchi N am ie-o daka TokaiD aini G enkai M atsuyam a Tsuruga Sendai1 2 Saga Sendai Tokyo E.P.C o. H igashidori 1 C 2 hubu E.P.C o. N iigata Fukushim a Fukushim a D aiichi 1 H am 2 aoka Kagoshim a Fukushim a D aini Kanazaw a Kashiw azaki-kariw a Total 55 Units in Operation Fukui M ito Tokyo Japan Atom ic Pow er C o. M atsue Shizuoka Tokai ( 23 PWRs, 32 BWRs ) TokaiD aini -3- Yam aguchi 4

5 Fuel Cycle Facilities in Japan Rokkasho JNFL enrichment (in operation) JNFL reprocessing (under construction) JNFL MOX Fuel fabrication (under planning) JNFL Low-Level Waste Repository (in operation) JAEA reprocessing MNF fuel fabrication NFI fuel fabrication Tokai-Oarai NFI fuel fabrication Kumatori -4- GNFJ fuel fabrication Yokosuka 5

6 JNES s Profile Date of Establishment - October 1, 2003 TSO for regulatory authority NISA Budget and Staff - Budget : 28.6 billion yen (190M (April/ March/2007) - Number of staffs : 450 (as of July 2006) Expert organization specialized in nuclear safety, working for professional matters; e.g., inspection, analysis, evaluation, support for emergency and preparedness, research and information collection 6-5-

7 JNES and Nuclear Safety Regulation System for NPPs Nuclear Safety Commission Oversight Reporting Nuclear and Industrial Safety Agency (NISA) -Safety review -Inspection, etc. Direction of inspection Application -Submission of inspection results -Analytical evaluation -Emergency support, etc. Licensees Japan Nuclear Energy Safety Organization Application (JNES) Inspection, etc

8 JNES s Major Tasks Safety Analysis & Evaluation for Nuclear Facilities Inspection of Nuclear Facilities Survey, Tests and Research for Codes/Standards Development for Nuclear Facilities Emergency Preparedness Support for Nuclear Facilities Collection and Analysis of Safety Information of Nuclear Facilities -7-

9 Major Cooperation with Overseas Organizations IRSN (France) GRS (Germany) KINS (Korea) NSC (China) NuSTA (Taiwan) NRC (USA) Belgonucleaires Centre d Etude I Energie Nucleaires (Belgium) PSI (Switzerland) IAEA OECD/NEA -8-9

10 Recent Major Topics in Nuclear Safety Regulation in Japan New Seismic Safety Design Guideline New Inspection System Strengthening Aging Management New Regulatory Procedure for Decommissioning and Clearance System Safety Regulation for Radioactive Waste Disposal International Cooperation in Asian Region -9-10

11 Spent Fuel Management & Waste Management (1) Policy in Japan Framework for Nuclear Energy Policy 2005 Reprocessing of spent fuel / Effective use of recovered Pu and U Wastes to be Land Disposed

12 Spent Fuel Management (2) Recent topic on Reprocessing The Rokkasho commercial reprocessing facility 100m - Reprocessing capacity of 800tonU/year. - Storage capacity of 3,000tonU of spent fuel. - Construction started in Following a U-test operation, now under an active test operation. Commercial operation planned in

13 Radioactive Waste Management (1) Waste classification and disposal types Classification Origin Type of disposal HLW Reprocessing Geological disposal Relatively higher radioactive waste Intermediate depth disposal Relatively lower radioactive waste NPP Near surface concrete vault disposal Very low radioactive waste Near furface trench disposal L L W Waste containing TRU Reprocessing, MOX fablication Geological disposal, intermadiate depth disposal, near surface concrete vault disposal Uranium waste U-enrichment, fuel fablication Intermadiate depth disposal, near surface concrete vault disposal, near furface trench disposal(, geological disposal) -12-

14 Radioactive Waste Management (2) Practices on Low-Level Waste The Rokkasho disposal facilities for relatively lower radioactive waste are under stable operation since No.1 Disposal Facility Licensed No.2 Repositor y Oct., 1998 No.1 Repository Nov., 1990 Operation Oct., 2000 Dec., 1992 No.2 Disposal Facility Capacity 200,000d rums Emplaced as of Sep., ,472dr ums 200,000dru ms 136,683dru ms Waste type Homogen eously solidified wastes Miscellaneo us wastes immobilized with cement

15 Radioactive Waste Management (3) Recent Progress on Intermediate Depth Disposal Rokkasho Entrance Access tunnel Backfill Test cavern Waste packages 16m± Engineered barriers m± Conceptual view of disposal tunnel 15

16 Radioactive Waste Management (4) IMAGE of HLW Disposal Facility by NUMO A major project lasting about 100 years from siting to closure of the repository 100m - Repository for 40,000 canisters of vitrified HLW, expected start of operation around Siting/site investigation for 25 years - Facilities construction for 10 years - Operation for 50 years - Closure of the repository for 10 years Borehole Deeper than 300m Main tunnel Disposal panels Back-filling Construction Access shafts and spiral tunnel Operation Back-filling -15-

17 Outline of long-term safety regulations for HLW geological disposal Final Disposal Act enacted, NUMO established in 2000 Open solicitation for ISI areas started in 2002 Final disposal site selected in mid-2020s Termination of license, dissolution of NUMO Literature survey Preliminary SI Detailed SI Construction/operation Positive control Stepwise siting procedure Guidelines Review License Licensing Review Start of operation in mid-2030s Safety Confirmation Permanent closure Abolition Permission Confirmation JNES Safety regulations NISA Basic guide for licensing review Guide for licensing review Nuclear Safety Commission

18 Thank you for your attention