• Title/Summary/Keyword: Waste-to-Energy

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Recent Progress in Waste Treatment Technology for Pyroprocessing at KAERI (파이로 공정폐기물 처리기술의 최근 KAERI 연구동향)

  • Park, Geun-Il;Jeon, Min Ku;Choi, Jung-Hoon;Lee, Ki-Rak;Han, Seung Youb;Kim, In Tae;Cho, Yung-Zun;Park, Hwan-Seo
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.17 no.3
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    • pp.279-298
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    • 2019

  • This study comprehensively addresses recent progress at KAERI in waste treatment technology to cope with waste produced by pyroprocessing, which is used to effectively manage spent fuel. The goal of pyroprocessing waste treatment is to reduce final waste volume, fabricate durable waste forms suitable for disposal, and ensure safe packaging and storage. KAERI employs grouping of fission products recovered from process streams and immobilizes them in separate waste forms, resulting in product recycling and waste volume minimization. Novel aspects of KAERI approach include high temperature treatment of spent oxide fuel for the fabrication of feed materials for the oxide reduction process, and fission product concentration or separation from LiCl or LiCl-KCl salt streams for salt recycling and higher fission-product loading in the final waste form. Based on laboratory-scale tests, an engineering-scale process test is in progress to obtain information on the performance of scale-up processes at KAERI.

  • https://doi.org/10.7733/jnfcwt.2019.17.3.279 인용 PDF KSCI

A Study on the Incentive-based Strategies for Utilization of Thermoelectric Power Plant Hot Waste Water: Focusing on the Analysis of Levelized Cost of Energy(LCOE) (발전소 온배수열 활용사업의 경제적 유인제도 연구 : 에너지균등화비용(LCOE) 분석을 중심으로)

  • Nam, Tae-Sub;Lee, Kwan-Young;Kim, Kyung Nam
    • Journal of Energy Engineering
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    • v.25 no.1
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    • pp.29-42
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    • 2016

  • This study analyzes the economic efficiency of utilizing hot waste water at a thermoelectric power plant, which is part of recent projects supported by the Korean government to foster new energy industry. The author proposes an institution that provides economic incentives to promote the project. Based on a method of calculating Levelized cost of energy (LCOE), this study finds that the LCOE of using hot waste water at power plants is higher than that of oil boiler, biomass and a power plant's auxiliary steam but similar to that of the geothermal system. Also, according to sensitivity analysis on the LCOE of each element in the system of using hot waste water, a distance of heat supply is most sensitive. Therefore, this study shows that when the government devises an incentive-based institution to expand the project of utilizing hot waste water, it is necessary to establish Renewable Energy Certificate (REC) weights that are differentiated by a distance of heat supply.

  • https://doi.org/10.5855/ENERGY.2015.25.1.029 인용 PDF KSCI

Non-Additive Ranking of Release Scenarios in a Low and Intermediate Waste Repository

  • Kim, Seong-Ho;Kim, Tae-Woon;Jaejoo Ha
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2004.06a
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    • pp.188-188
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    • 2004

  • In the present study, a multicriteria decision-making (MCDM) problem of ranking of important radionuclide release scenarios in a low and intermediate radioactive waste repository is to treat on the basis of non-additive fuzzy measures and fuzzy integral theory. Ranking of important scenarios can lead to the provision of more effective safety measure in a design stage of the repository. The ranking is determined by a relative degree of appropriateness of scenario alternatives.(omitted)

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