국내 최초의 상업원전인 고리1호기가 2017년 6월에 영구 정지되었다. 고리1호기 해체를 시작으로 한국은 원전 해체시장에 본격적으로 발을 내딛는다. 원자력발전소 해체를 위해서는 고려해야 할 사항들이 많으며, 방사선환경영향평가 또한 그 중 하나이다. 방사선환경영향평가의 목적은 주변주민의 건강과 안전을 도모하기 위해, 해체 전 및 해체 중에 해당 시설에서 방출되는 방사성물질로부터 주변주민이 받는 피폭방사선량이 규제 제한치를 초과하지 않음을 확인하는 것이다. 현재 국내에는 해체시 방사선환경영향평가서를 작성하는데 필요한 세부지침이 미비한 상황으로, 다수의 원전 해체 경험을 보유한 미국의 해체시 방사선환경영향평가서를 비교 분석하여 국내 상황에 맞는 해체시 방사선환경영향평가 방안을 개발하였다.
국내 최초의 상업원전인 고리1호기가 2017년 6월에 영구 정지되었다. 고리1호기 해체를 시작으로 한국은 원전 해체시장에 본격적으로 발을 내딛는다. 원자력발전소 해체를 위해서는 고려해야 할 사항들이 많으며, 방사선환경영향평가 또한 그 중 하나이다. 방사선환경영향평가의 목적은 주변주민의 건강과 안전을 도모하기 위해, 해체 전 및 해체 중에 해당 시설에서 방출되는 방사성물질로부터 주변주민이 받는 피폭방사선량이 규제 제한치를 초과하지 않음을 확인하는 것이다. 현재 국내에는 해체시 방사선환경영향평가서를 작성하는데 필요한 세부지침이 미비한 상황으로, 다수의 원전 해체 경험을 보유한 미국의 해체시 방사선환경영향평가서를 비교 분석하여 국내 상황에 맞는 해체시 방사선환경영향평가 방안을 개발하였다.
Kori unit 1, the oldest commercial nuclear power plant in South Korea, was permanently shut down in June 2017. There are a lot of things to consider in decommissioning nuclear power plants, and one of them is the radiological environmental impact assessment. Performed to promote the health and safet...
Kori unit 1, the oldest commercial nuclear power plant in South Korea, was permanently shut down in June 2017. There are a lot of things to consider in decommissioning nuclear power plants, and one of them is the radiological environmental impact assessment. Performed to promote the health and safety of residents around the nuclear power plant, radiological environmental impact assessment aims to confirm that off-site radiological dose from radioactive material released from the facility does not exceed the regulatory criteria. There are three main parts of environmental impact assessment: pre-decommissioning environmental monitoring, environmental monitoring during decommissioning, and impact on nearby residents. At present, although the Korea Nuclear Safety Act stipulates that radiological environmental impact assessment resulting from decommissioning should be carried out, the details have not been specified. Therefore, this paper compares and analyzes guidelines for evaluation of radiological environmental impacts of nuclear power plants overseas, and presents a draft on the assessment of radiological dose resulting from decommissioning according to the Korean situation.
Kori unit 1, the oldest commercial nuclear power plant in South Korea, was permanently shut down in June 2017. There are a lot of things to consider in decommissioning nuclear power plants, and one of them is the radiological environmental impact assessment. Performed to promote the health and safety of residents around the nuclear power plant, radiological environmental impact assessment aims to confirm that off-site radiological dose from radioactive material released from the facility does not exceed the regulatory criteria. There are three main parts of environmental impact assessment: pre-decommissioning environmental monitoring, environmental monitoring during decommissioning, and impact on nearby residents. At present, although the Korea Nuclear Safety Act stipulates that radiological environmental impact assessment resulting from decommissioning should be carried out, the details have not been specified. Therefore, this paper compares and analyzes guidelines for evaluation of radiological environmental impacts of nuclear power plants overseas, and presents a draft on the assessment of radiological dose resulting from decommissioning according to the Korean situation.
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문제 정의
Therefore, the purpose of this study is to review the overseas NPP decommissioning experience focusing on the radiological environmental impact assessment and to draw up a draft of radiological environmental impact assessment that reflects domestic situation.
제안 방법
The GEIS describes an analysis of environmental impacts from decommissioning activities that can be treated generically so that decommissioning activities for commercial nuclear power reactors conducted at specific sites will be bounded, to the extent practicable, by this and appropriate previously issued environmental impact statements. In this study, we examined the documents related to the environmental impact assessment in decommissioning of nuclear power plants in the IAEA and the U.S., and reviewed the assessment items.
In this study, it is considered appropriate to compose the environmental impact assessment in the DP without applying separate radiological environmental impact assessment.
Exposure by gas phase emissions is divided into individual dose and collective dose assessments. In each assessment, there are four exposure pathways such as external exposure due to polluted air, external exposure due to contaminated ground surface, internal exposure due to inhalation, and food intake should be evaluated.
Exposure by liquid phase emissions is divided into individual dose and collective dose assessments. In each assessment, external exposure due to maritime activities (beach activities, swimming or aquatic activities), and internal exposure due to ingestion of aquatic products should be evaluated.
Because of this, there is a high possibility that the decommissioning operator will have difficulty in preparing the decommissioning radiological environmental impact assessment. Therefore, this study compares and analyzes of the U.S. related guidelines that have many experiences of decommissioning nuclear power plants, and developed a decommissioning radiological environmental impact assessment (draft) suitable for Korea. First of all, the documents related to the radiological environmental impact assessment during the decommissioning of the U.
참고문헌 (11)
Ineternational Atomic Energy Agency, "Decommissioning of Facilities Using Radioactive Material, Safety Requirements No.WS-R-5", October 2006.
International Atomic Energy Agency, "Standrad Format and Content for Safety Related Decommissioning Documents, Safety Report Series No.45", July 2005.
NUREG-0586, "Generic Environmental Impact Statement on Decommissioning of Nuclear Facilities", NRC, November 2002.
United States Nuclear Regulatory Commission, "10CFR 50.82 Termination of License", August 2017.
Dominion Engergy Kewaunee, "Kewaunee Power Station Post-Shutdown Decommissioning Activities Report", February 2013.
Sacramento Municipal Utility District, "Rancho Seco Post-Shutdown Decommissioning Activities Report", July 2003.
Duke Energy, "Crystal River Unit 3 - Post Shutdown Decommissioning Activities Report", December 2013.
Nuclear Safety and Security Commission, "Regulations on Technical Standards such as reactor facilities", NSSC, June 2016.
Nuclear Safety and Security Commission, "Regulation for the Preparation of Nuclear Decommissioning Plans", NSSC Notice 2015-8, July 2015.
Nuclear Safety and Security Commission, "Standards on Radiation Protection", NSSC Notice 2016-16, August 2016.
Nuclear Safety and Security Commission, "Regulation on the Radiation Environment Survey and Radiological Environmental Impact Assessment around Nuclear Facilities", NSSC Notice 2014-12, November 2014.
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