Current Status, Experience and Planning of Radioactive Waste Disposal in KOREA September 10, 2013 IAEA TM on the Disposal of Intermediate Level Waste, Vienna, 9 ~ 13 Sept. 2013 Haiyong JUNG, Ph.D ([email protected]) Radioactive Waste Safety Evaluation Dept.
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Current Status, Experience and Planning of Radioactive Waste Disposal in KOREA September 10, 2013 IAEA TM on the Disposal of Intermediate Level Waste,
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Current Status, Experience and Planning of Radioactive Waste
Disposal in KOREA
September 10, 2013
IAEA TM on the Disposal of Intermediate Level Waste, Vienna, 9 ~ 13 Sept. 2013
Application for Construction & Operating LicenseJan. 2007
Issued Construction & Operating LicenseJul. 2008
Jun. 2014 Full Operation of the Facility
Operation of LILW Reception/Storage BuildingsDec. 2010
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IAEA TM on disposal of ILW 22
Post-closure SA Criteria for LILW Dis-posalThe predicted annual radiological dose caused by natural evolution on
individuals of critical group shall not exceed 0.1 mSv.
Annual risk due to unexpected disruptive events caused by either natu-
ral or artificial factors shall be limited to below 10-6.
After the institutional control of disposal facilities, radiological impacts
due to human intrusion shall be limited below 1mSv/y.
Normal evolu-tion
• Performance Objective caused by natural evolution: ≤ 0.1 mSv/y
Disruptive events
• Risk induced by un-controlled natu-ral or man-made dispuptive events : ≤ 10-6/y
Human Intru-sion
• Radiation dose : ≤ 1.0 mSv/y
IAEA TM on disposal of ILW 23
Post-closure SA & Institutional Control
BiosphereGeosphereWasteDisposalContainer
Backfill Silo
② ③ ④ ⑤① ⑥
①②③④ ⑤
Near Field
• Not requested to exceed 1,000 y• If no peak by 1,000 y, need to
demonstrate non-drastic increase of the release rate and non-acute radio-logical risk to be demonstrated.
Timeframe Post-closure Institutional Control
• Proposed institutional control period:
100 y based on the results of SA• Effectiveness of the control period: to
be re-verified by safety reassessment,
renewal of safety analysis, institutional
control plan, and institutional control
termination plan, etc.
IAEA TM on disposal of ILW
Future plan
IAEA TM on disposal of ILW
Development of 2nd stage disposal facility2nd stage: near surface fa-cility
engineered barriers125 thousands packages
Milestone (in planning)In late 2014, apply for li-censeIn early 2017, start its op-eration
IAEA TM on disposal of ILW
In order to revise the current RW classification system in taking account to the current status & prediction of RW Management based on IAEA GSG-1, the research project by KINS has been launched in 2012.
The connection between the RW classification and the disposal type would be the key factors in this research.
It is likely that the revision of RW classification system in legal framework would be done based on this research.
Revision of RW classification system
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IAEA TM on disposal of ILW
Current Sys-tem
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HLW (SNF)Geological Disposal
(in the future)
ILW
LLW
VLLW
Near Sur-face
Disposal(Surface landfill /Engineered Bar-
rier)
Intermediate Depth
Disposal (??)
Geological Disposal
(in the future)HLW (SNF)
L&ILW ?
VS Future Sys-tem
IAEA TM on disposal of ILW
The SA of the LILW repository in Korea guaranteed the long-term safety in showing the compliance with the post-closure per-formance criteria.
Korean LILW repository is now under construction and expected to start its operation in July 2014.
KORAD, which is responsible for RWM in Korea, is planning to develop the 2nd stage of RW disposal facility in Wolsong site. It is expected to be a near surface disposal facility with engineered barriers.
New RW classification system is under research by KINS in tak-ing into account the linkage between the category and disposal type based on the long-term safety.