• Title/Summary/Keyword: 방사성 액체폐기물

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A Review on the Application of Ionic Liquids for the Radioactive Waste Processing (방사성 폐기물 처리를 위한 이온성 액체 활용)

  • Park, Byung Heung
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.12 no.1
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    • pp.45-57
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    • 2014

  • Academic interests in ionic liquid (IL) technologies have been extended to the nuclear industry and the applicability of ionic liquids for processing radioactive materials have been investigated by many researchers. A number of studies have reported interesting results with respect to the spectroscopic and electrochemical behaviors of metal elements included in spent nuclear fuels. The measured and observed properties of metal ions in TBP(tri-butyl phosphate) dissolved ILs have led the development of alternative technologies to traditional aqueous processes. On the other hand, the electrochemical deposition of metal ions in ILs have been investigated for the application of the solvents to aqueous as well as to non-aqueous processes. In this work, a review on the application of ILs in nuclear fuel cycle is presented for the purpose of categorizing and summarizing the notable researches on ILs.

  • https://doi.org/10.7733/jnfcwt.2014.12.1.45 인용 PDF KSCI KPUBS

Selective Separation of Cesium Ion Using Supported Liquid Membrane Containing Calix[4]arene Crown Ether (Calix[4]arene Crown Ether 함유 지지형 액막을 이용한 세슘이온의 선택적 분리)

  • 김종국;김종승;설용건;이근우;오원진
    • Proceedings of the Membrane Society of Korea Conference
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    • 1998.10a
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    • pp.31-36
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    • 1998

  • 1. 서론 : 산업이 고도로 발달함에 따라 야기되는 환경오염의 심각성이 날로 더해가고 있다. 특히 원자력 관련시설중 핵연료 재활용 공정에서 발생되는 방사성 폐기물의 처리기술에 대한 개발이 무엇보다도 시급한 실정이다. 핵연료 재활용 조작은 고준위 및 중준위 방사능 액체 폐기물을 발생시키며 이러한 방사능 액체 폐기물의 주요핵종은 긴 반감기를 갖는 것들이다. 이러한 방사능 액체 폐기물의 무해한 저장을 위해서 세계적으로 노력해 왔으며 고준위 폐기물은 유리화한후 심층매립을 하는 것이 가장 안전한 방법으로 고려되고 있다.(생략)

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A Study on the Treatment of Radioactive Liquid Wastes using Synthetic textile by Air Intake System (공기유입시스템에서의 섬유매체에 의한 방사성액체폐기물 처리에 관한 연구)

  • 김태국;이영희;안섬진;손종식;홍권표
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2003.11a
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    • pp.101-104
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    • 2003

  • In this study based on the mass transfer theory, experiments for the evaporation rates depending on various conditions were carried out through the operation of the existing Natural Evaporation Facility in KAERI. Evaporation media were made of the cotton and polyester. Air circulation in the facility was forced by exhausting fans. The evaporation rate and the decontamination factor were calculated by the result of experiment. The evaporation rate increased as the flow rate of air supply, the feed rate of liquid waste, and the temperature of supplied air increased. As for the humidity of supplied air, the evaporation rate was getting higher as the humidity was getting lower. As the result of this study, operation conditions of the Natural Evaporation Facility are optimized as follows : The air temperature above $8^{\circ}C$, the air humidity below 70%, the air flow rate 1.14-1.47 m/sec, and the liquid waste feed rate $4.6{\ell}/hr\cdotm^2$. The decontamination factor and the radioactivity are $5.1{\times}10^3$and $4.7{\times}10^{-13}{\mu}Ci/\textrm{m}{\ell}$ respectively, at the above mentioned optimum operation conditions. The air factor in the Dalton's equation for evaporation was determined from results of experiment on the temperature, the humidity, and the flow rate of supplied air as following : $[\textit{Eh}=(0.018 + 0.0141\textitv) {\delta}textitH]$

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