• Title/Summary/Keyword: Waste Energy

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Development of Energy Recycling Technology Using Woody Waste (목질계 폐기물의 에너지 자원화 기술 개발)

  • Yoo, Kyun-Seun;Gu, Jae-Hoi;Shun, Do-Won;Choi, Yeon-Seok
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.713-716
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    • 2007

  • Interests have been focused to the renewable energy because energy cost of fossil fuel increased and global climate change caused by CO2 evolution became severe. To overcome these problems, it is essential to develop the energy conversion technologies of renewable resources. Therefore, production and utilization state of wood and woody waste was firstly investigated and then various technologies (pyrolysis, gasification, and combustion) converting the wood and woody waste to energy were summarized. Some case studies of woody waste utilization in europe was introduced with the policy of EU countries. Economical aspect of woody waste was compared with the current fossil fuels and the energy policy of wood and woody waste was suggested.

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Waste Management and Treatment of Decommissioned Radioactive Combustible Waste

  • Min, B.Y.;Lee, Y.J.;Yun, G.S.;Lee, K.W.;Moon, J.K.
    • Journal of Nuclear Fuel Cycle and Waste Technology
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    • v.1 no.1
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    • pp.75-82
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    • 2013

  • A large quantity of radioactive waste was generated during the decommissioning of the KRR and UCF. The radioactive waste was packed into 200 liter drums and 4m3 containers and these were temporarily stored onsite until their final disposal in the national repository facility. Some of the releasable waste was freely released and utilized for non-nuclear industries. The combustible wastes were treated by the utilization of an incinerator with a capacity of on average 20 kg/hr.

  • https://doi.org/10.7733/jnfcwt.2013.1.1.75 인용 PDF

Evaluation of cementation of intermediate level liquid waste produced from fission 99Mo production process and disposal feasibility of cement waste form

  • Shon, Jong-Sik;Lee, Hyun-Kyu;Kim, Tack-Jin;Kim, Gi-Yong;Jeon, Hongrae
    • Nuclear Engineering and Technology
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    • v.54 no.9
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    • pp.3235-3241
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    • 2022

  • The Korea Atomic Energy Research Institute (KAERI) is planning the construction of the KIJANG Research Reactor (KJRR) for stable supply of 99Mo. The Fission 99Mo Production Process (FMPP) of KJRR produces solid waste such as spent uranium cake and alumina cake, and liquid waste in the form of intermediate level liquid waste (ILLW) and low level liquid waste (LLLW). This study thus established the operating range and optimum operating conditions for the cementation of ILLW from FMPP. It also evaluated whether cement waste form samples produced under optimum operational conditions satisfy the waste acceptance criteria (WAC) of a disposal facility in Korea (Korea radioactive waste agency, KORAD). Considering economic feasibility and safety, optimum operational conditions were achieved at a w/c ratio of 0.55, and the corresponding salt content was 5.71 wt%. The cement waste form samples prepared under optimum operational conditions were found to satisfy KORAD's WAC when tested for structural stability and leachability. The results indicate that the proposed cementation conditions for the disposal of ILLW from FMMP can be effectively applied to KJRR's disposal facility.

  • https://doi.org/10.1016/j.net.2022.03.033 인용 PDF KSCI