방사선산업학회지 (Journal of Radiation Industry)

한국방사선산업학회 (Korean Society of Radiation Industry)
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경주 중저준위방폐물 처분시설 내 셀룰로오스 함유 방폐물 처분가능 총량 도출을 위한 스웨덴 SFR 처분시설 사례 분석

A Case Study of SFR Disposal Facility in Sweden to Derive the Total Disposable Amount of Radioactive Waste Containing Cellulose in Low and Intermediate Level Radioactive Waste Disposal Facility in Gyeongju

  • 하재철 (한국원자력환경공단 중저준위기술팀) ;
  • 강명구 (한국원자력환경공단 중저준위기술팀) ;
  • 최세호 (한국원자력환경공단 중저준위기술팀)
  • JaeChul Ha (LILW Technology Team Korea Radioactive Waste Agency) ;
  • MyungGoo Kang (LILW Technology Team Korea Radioactive Waste Agency) ;
  • SeHo Choi (LILW Technology Team Korea Radioactive Waste Agency)
  • 투고 : 2023.09.12
  • 심사 : 2023.11.03
  • 발행 : 2023.12.31
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초록

There are various factors that have a negative impact on safety over a long period of time after the closure of a radioactive waste disposal facility. In particular, it is important to limit substances that accelerate radionuclide migration while inhibiting adsorption between radionuclides and the subsurface medium. Through this study, a method for deriving a quantitative criteria evaluation method is proposed for cellulose among materials that accelerate the movement of these radionuclides after closure of the disposal facility. Since Sweden's SKB is representative worldwide for preparing criteria for cellulose in disposal facilities, it analyzed Sweden's acceptance criteria method and presented a method that can be applied domestically. The decomposition characteristics of cellulose and the adsorption and dissolution characteristics of ISA among degradation products were reviewed, and quantitative analysis of cement materials that create a high pH environment favorable for cellulose decomposition was also included. In addition, the total amount of the finally disposable cellulose material can be derived by using the volume information of the waste containing the cellulose material. Through this methodology for calculating the total amount of cellulose, it is expected that subsequent studies will be conducted to secure data reflecting the environmental conditions of radioactive waste disposal facilities in Korea. In addition, it is expected to be utilized as a good method to evaluate the impact of other complexing agents other than cellulose and to suggest the amount of disposal.

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과제정보

본 논문은 한국에너지기술평가원(KETEP)에서 주관하는 원전해체방폐물 안전관리기술개발사업의 "원전 해체 발생 유기착화제의 효율적 처리·처분을 위한 평가 기술 개발" 과제(과제번호: 20203210100370)의 일환으로 수행되었습니다.

참고문헌

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