• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2016.05a
• /
• pp.371-372
• /
• 2016

• Journal of the Korean Society of Radiology
• /
• v.8 no.3
• /
• pp.97-103
• /
• 2014

Decommission of medical cyclotron give rise to a lot of low-level radioactive waste and costs. Decommissioning cost should be reasonably calculated according to the decommissioning activities and installed components of facilities. In this paper, we investigated the experience on the cyclotron relocation from SNUH(Seoul National University Hospital) to SKKU(Sungkyunkwan University) and analyzed radioactive waste management costs by applying the disposal scenarios. Also considerations for decommissioning cost estimation are reviewed. The results could be utilized as a basic data for establishment on the methodology of decommissioning cost estimation and evaluation.

• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2004.06a
• /
• pp.58-71
• /
• 2004

Korea Research Reactor (KRR) 1＆2 has shut down and through preparatory activities, its decommissioning activities are underway. As its decommissioning activities have been done over several years, its relevant data have been spreaded with various type and media all over the discrete place and inadvertently managed, As a result, managing and assessing data of KRR 1＆2 has been difficult and complex and its data cannot be evaluated. By developing the decommissioning database system of KRR 1＆2 the data of decommissioning activities can be correctly evaluated, being systematically managed and objectively assessed. Finally, the decommissioning project of KRR 1＆2 have come to more effectively accomplished. As the data of decommissioning activities can be at last systematically analyzed and objectively assessed, the decommissioning project of KRR 1＆2 would be more effectively accomplished.

• Korean Journal of Construction Engineering and Management
• /
• v.9 no.4
• /
• pp.131-139
• /
• 2008

Now, one of the greatest concerns at home and abroad is eco-friendly construction. Above all, the reduce and recycle of the construction waste may be one of the most important things. The construction waste has been produced most at demolition phase, but the research into that area has not being to make nearly within the country. Recently, as the government have realized the importance of that area, they are making research to improve traditional demolition methods. Also, they are preparing to make a raw to enforce deconstruction during demolition phase. This research has analyzed the problems and waste types which produced during the demolition works by surveying in site. Until now, in the interior, the right quantity basis has not been suggested, because of the absence of any methods to estimate it accurately. Therefore, this study has compared and analyzed owner's ordering quantity, drawing analysis quantity with measuring the waste to produced at site during demolition works, this research results are expected to be the important materials for future research into the construction waste area.

• Korean Journal of Construction Engineering and Management
• /
• v.12 no.1
• /
• pp.133-140
• /
• 2011

Recently, the demolition industry is becoming more important than ever for formulating reuse and recycling of a construction waste with the current trend in pursuing a sustainable development. As considering the situation of a domestic housing construction and an existing house, a scale of a demolition market is expected to increase continually. Therefore, for a sustainable development, it is needed to forecast and manage rightly the demolition waste producted in a demolition phase. But, because most of a demolition company is very small and the investment in a technology development is not enough, the effort to develope a system and to make a standard for managing righly a demolition waste is also not sufficient. Therefore, this study develops a system to automatize quantifying a demolition waste. This system makes it possible to manage the planning of demolition works and the quantifying, disposal, reusing and recycling of a demolition waste in one system by integrating all the activities related with demolition works. 3D drawings of each element for demolition works will manage by being linked to its schedule for visualizing 3D object. Also, this study presents methods for quantifying easily a demolition waste by using 3D object.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
• /
• v.16 no.3
• /
• pp.377-387
• /
• 2018

Korea's first commercial nuclear power plant, Kori Unit 1, was permanently shut down on June 18, 2017, after 40 years of successful operation. Kori Unit 1 plans to construct a waste treatment facility in the turbine building prior to commencement of dismantling in earnest. Various radioactive wastes are decontaminated, disassembled, cut and melted in the waste treatment facility and sent to the radioactive waste repository. The proportion of metal radioactive waste in dismantled waste is about 70%, of which large metal radioactive waste is mainly generated in the primary circuit and has high radioactivity, so radiation exposure must be managed during disassembly. In this study, the steam generators are selected as large metal radioactive waste, the exposure doses of the dismantling workers are calculated using RESRAD-RECYCLE code and the methods for reducing the exposure doses are suggested.

• Journal of the Korean Society of Systems Engineering
• /
• v.17 no.1
• /
• pp.76-84
• /
• 2021

Radioactive waste generated from nuclear power plant decommissioning shall be strictly managed so that radioactive materials above the allowable limit are not leaked into the environment. Radioactive wastes shall be classified and treated for management based on characteristics such as the type of waste, physicochemical properties, nuclide concentration and radioactivity. Waste characterization report shall be prepared and submitted to the disposal facility operator to ensure that the treated waste is suitable for disposal. The disposal facility operator shall review the waste Characterization report and visit the nuclear power plant decommissioning site to ensure that the wastes are processed step by step according to the plan. The waste Characterization report may be used as input data to evaluate disposal facility safety. Domestic and foreign data are collected and reviewed to confirm the entire processes from waste generation to delivery. This paper proposes the method to prepare the waste Characterization report which contains data and information on waste characteristics, treatment facilities & method and packaging method & container.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2008.11a
• /
• pp.536-539
• /
• 2008

Construction waste is given a great deal of weight on the total waste. Because of many reconstructions, urban redevelopment projects and dismantlement of dilapidated building, construction waste that generated by dismantlement is having a great effect on total construction waste. Problems about waste treatment are increasing along with an amount of construction waste. Therefore, environmental problems that related to waste treatment become a social issue recently and problems about waste treatment are confronted with a major subject. A study focuses on giving solutions to treat construction waste through quantitative analysis of the problems about waste treatment.

• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2012.10a
• /
• pp.313-314
• /
• 2012

• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2004.06a
• /
• pp.130-130
• /
• 2004

본 연구는 연구로 1,2호기 해체과정에서 발생되는 자체처분대상 콘크리트폐기물을 재활용하기 위해서 NUREG-1640 에서 제시하고 있는 시나리오에 대하여 외부피폭선량을 평가하였다. NUREG-1640에서는 콘크리트폐기물 재활용에 적용시 7가지 시나리오를 제시하고 있으며, 각 시나리오를 살펴보면 대량의 콘크리트에 인접, 콘크리트폐기물 수송, 콘크리트폐기물 처리, 매립을 위한 처분활동, 매립지 폐쇄 후 거주자, 콘크리트폐기물 이용 도로건설, 도로포장재로 대량의 콘크리트 이용이 있다.(중략)