Current Status and Tasks of Contaminant Migration Experiment Using Underground Research Laboratory

지하연구시설을 이용한 오염물질 이동실험 현황 및 과제

  • 박정균 (한국원자력연구소 처분연구부) ;
  • 백민훈 (한국원자력연구소 처분연구부) ;
  • 최종원 (한국원자력연구소 처분연구부)
  • Published : 2007.02.28

Abstract

Research and development for disposal of contaminants including radioactive wastes in deep underground have been carried out from laboratory works. However, validation and reliability of the data from the laboratory are arguing issues because they are not obtained from real disposal situations. Underground research laboratory (URL) is not only a solution to overcome such limitations, but also a valuable facility for performance assessment as an engineering scale. However, it requires much budget, and environmental issues can give rise to social conflicts easily. Such considering points related to URL are discussed as well as current status of worldwide URLs are introduced. Furthermore study plans for solute transport in a small-scale underground research tunnel (KURT), which was authorized recently as an non-radioactive facility in Korea, also described.

전세계적으로 방사성폐기물을 포함한 오염물질 심부처분관련연구는 실험실에서 단위현상들에 대한 관찰 및 자료측정부터 시작하지만, 이 실험자료들은 실제처분장조건을 완벽하게 구비한 상태에서 측정한 것이 아니므로 자료의 검증과 신뢰도 확보가 중요하다. 이런 부분 뿐만 아니라 공학적 규모에서 처분시스템의 성능평가를 위해 지하연구시설을 건설하여 관련연구를 진행하게 된다. 그렇지만, 지하연구시설은 많은 투자비가 든다는 점 외에 환경문제가 중요한 사회적 갈등으로 나타날 가능성이 많다. 이런 지하연구시설을 이용해 실험시 고려해야할 사항들을 검토하고, 세계적인 연구현황과 특징들을 기술하였다. 또, 한국에서 최근 비방사능실험시설로 소규모 지하연구시설을 인허가 받고 본격적인 연구시행단계에 진입하였는데, 오염물질이동관련 연구계획들을 중심으로 소개하였다.

Keywords

References

  1. Almen, K and Stenberg, L., 2005, $\'{A}SP\'{O}$ hardrock Laboratory: characterization methods and instruments, SKB/TR-05-11
  2. Kinzler B., Vejmelka.P, and Gortzen,A. 2003, Actinide migration experiment in the $\'{A}SP\'{O}$ HRL in Sweden, FZKA 6925
  3. Smith P.A. Alexander,W.R. and McKinley,I.G., 2000, The Nagra-JNC in situ study of safety relavant radionuelide retardation in fracturd crystalline rock, Nagra TR 00-09
  4. Park, C.K, Vandergraaf,T.J. ,Drew,D.J. and Hahn,P.S, 1997, Analysis of the migration of nonsorbing tracers in a natural fracture using a variable aperture channel model, J. of Cont. Hydrol. 26, 97-108 https://doi.org/10.1016/S0169-7722(96)00061-7
  5. Geckeis, 1999, CRR-Task2- detailed and long-term laboratory experiments, AN99-219
  6. AERE-R-11287, 1984, Analysis of steady-state hydraulic tests in fractured rock
  7. Park, C.K, Cho,W.J., and Hahn,P.S, 2006, Transport properties of sorbing contaminants in a fractured granite under oxidizing conditions, Kor. J. Chern. Eng. 23(5), 741-746 https://doi.org/10.1007/BF02705921
  8. Heer, W. and Hadermann, J., 1996, Modelling radionuelide migration field experiments, Nagra TR 94-18
  9. Nagra, 2002, Grimsel test site phase V, international steering committee meeting, May 22, Interlaken, Swiss
  10. SKB, 2006, $\'{A}SP\'{O}$ Hard rock laboratory annual report, SKB TR 06-10