• Title/Summary/Keyword: 폐자원의 재활용

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Recycling of Portable Secondary Batteries (소형 2차전지의 재활용)

  • Kim Hyun-Soo;Moon Seong-In
    • Journal of the Korean Electrochemical Society
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    • v.4 no.2
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    • pp.77-81
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    • 2001
  • Recently, used batteries are causing an environmental contamination and a waste of limited resources with increasing demand of portable secondary batteries in market. In developed countries, their governments have legally required the manufacture to collect and recycle the used batteries, so the related companies have formed an organization for collecting the used batteries and they are effectively recycling them. Unfortunately, an infrastructure for collecting and recycling the used batteries are not established at home yet, while volume of the used batteries are increasing. Therefore, we need an effective measure to ensure the recycling of the used batteries as soon as possible.

Current Effective Recycling and Application Methods in Construction Waterproofing Industries (건설방수산업분야에서의 유효자원 재활용 및 응용 기술 현황)

  • Park, Jin-Sang;Kim, Sun-Do;Park, Wan-Goo;Kim, Dong-Bum;Lee, Jong-Yong;Oh, Sang-Keun
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.4 no.1
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    • pp.31-37
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    • 2016
  • This paper intends to analyze the roles of regulations and certifications within the construction market that affect the effective recycling and application methods of construction waterproofing industries. Certifications, eco-labels, green certification patents, and new excellent technologies obtained in construction waterproofing industries are studied. In accordance to the study results, it was determined that, a total of 38 items obtained eco-labels with effective recycling as the theme, 10 items with green certifications, and 8 items with New Excellent Technologies. Regarding the types of effective recycled resources, most of them were concerned with composite-polymer(EVA, PVC, etc.) materials, waste tire powder, waste rubber, etc., which indicated that there is a clear limitation in the variety of the materials that are eligible for effective recycling in the construction waterproofing industries.

Research on eco-friendly construction management plan for construction site through waste fiber resource recycling technology (폐섬유 자원재활용 기술을 통한 건설현장 친환경 시공관리 방안에 관한 연구)

  • Kim, Dae-Geon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.11a
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    • pp.45-46
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    • 2022
  • Recently, it is necessary to establish an eco-friendly construction system through recycling of waste material management at construction sites. This is required to reflect the times that require a carbon reduction system in construction as part of domestic and overseas carbon dioxide reduction. Therefore, we intend to establish eco-friendly construction management as part of resource recycling and carbon reduction through recycling technology for waste fibers generated at construction sites.

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Recycling of Waste Barium Hexaferrite Magnets (Barium Hexaferrite 폐자석의 재활용)

  • 박인용
    • Resources Recycling
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    • v.9 no.2
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    • pp.18-25
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    • 2000
  • Magnetic and physical properties of sintered bodies prepare from waste sintered barium hexaferrite magnets which were come from fabrication process of isotropic permanent magnets were investigated. The properties of the sintered bodies were characterized by XRD, XRF, SEM, and BH curve tracer. After the waste permanent magnets were milled and granulated, the granules of the waste permanent magnet powders and the commercial granules were mixed with various proportions, pressed, and sintered. although the magnetic properties were decreased gradually with the content of waste magnet powder, the magnetic characteristics of the sintered magnets at $1150~1200^{\circ}C$ were comparable to those required for isotropic permanent magnets.

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Analysis of Commercial Recycling Technology and Research Trend of Printed Circuit Boards in Korea (국내 인쇄회로기판의 재활용 상용화 기술 및 연구동향 분석)

  • An, HyeLan;Kang, Leeseung;Lee, Chan-Gi
    • Resources Recycling
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    • v.26 no.4
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    • pp.9-18
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    • 2017
  • Recently, the amount of electronic scrap is rapidly increasing due to the rapid growth of the electronics industry. Among the components of electronic scrap, the printed circuit board(PCB) is an important recycling target which includes common metals, precious metals, and rare metals such as gold, silver, copper, tin, nickel and so on. In Korea, however, PCB recycling technologies are mainly commercialized by some major companies, and other process quantities are not accurately counted. According to present situation, several urban mining companies, research institutes, and universities are conducting research on recovery of valuable metals from PCBs and/or reusing them as raw materials that is different from existing commercialization process developed by major companies. In this study, we analyzed not only current status of collection/disposal process and recycling of waste PCBs in Korea but also the trend of recycling technologies in order to help resource circulation from waste PCBs become more active.