방사성폐기물학회지 (Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT))

  • 제10권3호
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  • Pages.209-218
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  • 2012
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  • 1738-1894(pISSN)
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  • 2288-5471(eISSN)
한국방사성폐기물학회 (Korean Radioactive Waste Society)
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파이로 공정 세라믹 폐기물을 위한 처분용기의 설계, 제작 방안, 그리고 기능 평가

Design, Manufacturing, and Performance estimation of a Disposal Canister for the Ceramic Waste from Pyroprocessing

  • 투고 : 2012.08.16
  • 심사 : 2012.09.14
  • 발행 : 2012.09.30
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초록

현재 한국원자력연구원에서는 국내에 축적된 사용후핵연료 문제를 해결하기 위해서 건식재처리공정(pyroprocess)을 개발 중에 있다. 건식재처리 공정에서는 상당량의 고준위 염폐기물이 발생되며, 이는 곧 세라믹 결합제로 고화된다. 고화된 세라믹 폐기물은 안전한 금속 처분용기에 밀폐된 후, 인간생활환경과 격리될 예정이다. 본문에서는 고준위 세라믹폐기물을 처분하기 위한 처분용기의 개발에 관한 전반적인 내용을 다루고 있으며, 특히 처분용기의 설계 요건, 용기의 구성, 용기의 제작, 용기의 부식저항성, 방사선 차폐, 구조적 안전성 등에 대해 논의하고자 한다. 완성된 처분용기는 오랜 기간 동안 방사성 핵종의 누출이 없이 열적, 기계적, 화학적, 생물학적 공격에도 안전한 것을 목적으로 한다.

A pyroprocess is currently being developed by KAERI to cope with a highly accumulated spent nuclear fuel in Korea. The pyroprocess produces a certain amount of high-level radioactive waste (HLW), which is solidified by a ceramic binder. The produced ceramic waste will be confined in a secure disposal canister and then placed in a deep geologic formation so as not to contaminate human environment. In this paper, the development of a disposal canister was overviewed by discussing mainly its design premises, constitution, manufacturing methods, corrosion resistance in a deep geologic environment, radiation shielding, and structural stability. The disposal canister should be safe from thermal, chemical, mechanical, and biological invasions for a very long time so as not to release any kind of radionuclides.

키워드

참고문헌

  1. Jong Won Choi, Geological disposal of Pyroprocessed Waste from PWR Spent Nuclear Fuel in Korea, KAERI Technical Report, pp 55-89, KAERI/TR-4525/2011 (2011).
  2. Heui-joo Choi, Development of a Korean Reference disposal System(A-KRS) for the HLW from Advanced Fuel Cycles, KAERI Research Report, KAERI/RR-3100/2009 (2010).
  3. Ji-Hyeon Lee, Minsoo Lee, Heui-Joo Choi, Jong- Won Choi, "Temperature Effect on the Swelling Pressure of a Domestic Compacted Bentonite Buffer", J. of the Korean Radioactive Waste Society, Vol. 8 (3), pp 207-213 (2010).
  4. Regulation of Nuclear Safety and Security Commission, No. 2011-49, Provisions of Packaging and Transport of Radioactive materials.
  5. Jae Owan Lee, Won Jin Cho, "Hydrochermal Behaviors and Long-term Stability of Bentonite Buffer Material", Vol. 5 (2), pp145-154 (2007).
  6. Minsoo Lee, Technical analysis of design & manufacturing of a disposal canister for deep geologic disposal, KAERI Technical Report, p 17, KAERI/TR-4458/2011 (2011).
  7. B. Kursten, E. Smailos, I. Azkarate, L. Werme, N.R. Smart, and G. Santarini, "COBECOMA(State-of-theart document on the COrrosion BEhaviour of COntainer MAterials)", FINAL REPORT, p 165 (2004)
  8. Choi, Heui-Joo, Minsoo Lee, Jong Youl Lee, "Preliminary conceptual design of a geological disposal system for high-level wastes from the pyroprocssing of PWR spent nuclear fuels", Nuclear Engineering and Design, 241, pp 3348-33 (2011) https://doi.org/10.1016/j.nucengdes.2011.06.013
  9. Minsoo Lee, Heui Joo choi, Jong Won choi, Hyung Jun Kim, "Application of cold spray coating technique to an underground disposal copper canister and its corrosion properties", Nuclear engineering and technology, 43(6) pp. 557-566 (2007).
  10. Choi, Heui-Joo, Minsoo Lee, Jong Youl Lee, "Application of a cold spray technique to the fabrication of a copper canister for the geological disposal of CANDU spent nuclear fuels", Nuclear Engineering and Design, 240, pp 2714-2720 (2010) https://doi.org/10.1016/j.nucengdes.2010.06.038
  11. Jong Youl Lee, "Treatment of a disposal canister for a ceramic high level waste, and its structural analysis after the closing", Abstracts of Proceedings of the Korean Radioactive Waste Society Spring 2012, pp 293-294, 2012.05.10-11, Convention Center in Changwon.
  12. Jong Youl Lee, "Structural analysis of a disposal canister for the high level waste from pyroprocessing" Abstracts of Proceedings of the Korean Radioactive Waste Society Autumn 2011, pp 449-450, 2011.10.13-14, Ramada Plaza Jeju.

피인용 문헌

  1. Corrosive Characteristics of Metal Materials by a Sulfate-reducing Bacterium vol.26, pp.4, 2013, https://doi.org/10.9727/jmsk.2013.26.4.219
  2. 벤토나이트 완충재의 구리치환 반응 특성 vol.27, pp.4, 2012, https://doi.org/10.9727/jmsk.2014.27.4.293