• Title/Summary/Keyword: 방사순환

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토양제염 실증실험을 위한 세척수 재순환장치의 성능시험

  • 손중권;이강원;강기두;김학수;박경록;김경덕
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2004.06a
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    • pp.242-242
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    • 2004

  • 원자력발전소의 운전과정에서 계획적 혹은 비계획적으로 방출되는 미량의 입자상 방사성 물질들은 대부분 원전 부지내 토양에 침적되게 된다. 이러한 과정 속에서 오염토양이 발생하게 되면 수거되어 단순 격리관리하고 있는 실정이지만 앞으로 원전의 해체과정 등으로 인한 오염토양이 상당량 발생할 것으로 예상되기 때문에 적절한 제염을 통하여 폐기물량을 최소화시킬 필요가 있다. 이를 위해 오염토양 제염공정으로 물을 이용한 토양세척법을 선정하여 제염장치를 제작하였으며 실증시험을 수행하였다.(중략)

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Development of Low-activation Cement for Decreasing the Activated Waste in Nuclear Power Plant (원전 방사화 폐기물 저감을 위한 저방사화 시멘트의 개발)

  • Lee, Binna;Lee, Jong-Suk;Min, Jiyoung;Lee, Jang-Hwa
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.3
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    • pp.223-229
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    • 2017

  • When concrete is exposed to neutron rays for a long time, the concrete tends to become activated. If activated, it is classified as middle or low level radioactive waste. However, the great amount of the activated concrete is hard to dispose. In this study, low-activation cement was developed for decreasing the activated waste from shielding concrete around nuclear reactor. Furthermore, the manufactured low-activation was analyzed with activation nuclide Eu, Co. The low-activation cement showed great advantage for low-activation with detecting none of Eu and 3.75ppm of Co while ordinary portland cement showed 0.4~0.9ppm of Eu, 5.5~19.8ppm of Co content. As the results of physical properties of the low-activation cement, it is similar to type 1 ordinary portland cement and accords with type 4 low heat portland cement. Meanwhile, as for the chemical properties of the cement, it accords wite type 1 and 4 at the same time.

  • https://doi.org/10.14190/JRCR.2017.5.3.223 인용 PDF KSCI