• Title/Summary/Keyword: 금속폐기물

Search Result 469, Processing Time 0.027 seconds

A Study on the Conceptual Development for a Deep Geological Disposal of the Radioactive Waste from Pyro-processing (파이로공정 발생 방사성폐기물 심지층 처분을 위한 개념설정 연구)

  • Lee, Jong-Youl;Lee, Min-Soo;Choi, Heui-Joo;Bae, Dae-Seok;Kim, Kyeong-Soo
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
    • /
    • v.10 no.3
    • /
    • pp.219-228
    • /
    • 2012

  • A long-term R&D program for HLW disposal technology development was launched in 1997 in Korea and Korea Reference disposal System(KRS) for spent fuels had been developed. After then, a recycling process for PWR spent fuels to get the reusable material such as uranium or TRU and to reduce the volume of radioactive waste, called Pyro-process, is being developed. This Pyro-process produces several kinds of wastes including metal waste and ceramic waste. In this study, the characteristics of the waste from Pyro-process and the concepts of a disposal container for the wastes were described. Based on these concepts, thermal analyses were carried out to determine a layout of the disposal area of the ceramic wastes which was classified as a high level waste and to develop the disposal system called A-KRS. The location of the final repository for A-KRS is not determined yet, thus to review the potential repository domains, the possible layout in the geological characteristics of KURT facility site was proposed. These results will be used in developing a repository system design and in performing the safety assessment.

  • https://doi.org/10.7733/jkrws.2012.10.3.219 인용 PDF KSCI

플라즈마트론을 이용한 금속 방사성 폐기물 제염처리연구

  • Yang, Ik-Jun;Yang, Jong-Geun;Kim, Seung-Hyeon;SURESH, RAI;Ahmed, M.W.;Shaislamov, Ulugbek;Lee, Heon-Ju
    • Proceedings of the Korean Vacuum Society Conference
    • /
    • 2015.08a
    • /
    • pp.116.1-116.1
    • /
    • 2015

  • 원자력 발전소 고리 1호기의 해체가 결정됨에 따라 발전소를 구성한 금속기기의 제염처리가 대두되고 있다. 금속 방사성폐기물 중 상당수는 그 자체가 방사성 오염 물질이라기보다는 오염 핵종이 표면에 부착하고 있는 경우가 많아 제염 공정을 거쳐 폐기한다면 보관해야 하는 양을 획기적으로 줄일 수 있을 것이다. 이에 따라 본 연구실에서는 플라즈마트론을 이용한 방사성 폐기물 건식제염처리에 대하여 연구하였다. 본 실험에서는 방사성을 띄지 않는 동위원소 Co sheet와 DC 플라즈마트론을 사용하였다. Ar 1000 sccm을 고정으로 비율(10:0, 9:1, 8:2, 7:3, 6:4), 거리(20 mm, 30 mm 40 mm), 시간(60 sec, 120 sec, 180 sec)을 변수로 두어 실험하였다. 결과적으로 기체의 혼합비가 4:1일 때 최대 식각율 $9.24{\mu}m/min$을 확인했다.

  • PDF