• Title/Summary/Keyword: recycling.

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한국의 플라스틱포장재의 재활용 기술 동향 (Recycling Facts and Technical Trends of Plastic Packaging Materials in Korea)

  • 하영선;김종경;김수일
    • 한국포장학회지
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    • 제8권2호
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    • pp.44-48
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    • 2002
  • 플라스틱 포장재는 소비자들이 생각하는 것보다 환경에 미치는 영향이 적으나 플라스틱 제조업체들에게는 플라스틱 폐기물을 위한 재활용시장을 어떻게 활용화하는가는 매우 중요하다. 이것을 위하여 정부는 충분한 규모의 재활용시장을 키워나갈 수 있도록 MRF 등 각종 설비를 지원해야 하며 성공적인 재활용정책을 개발해야 한다. 경제적이고 다양한 재활용기술이 소개되고 있지만 이것은 반드시 잘 정비된 재활용정책이 우선되어야 성공할 수 있다.

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연마 Recycling 시간에 따른 콜로이드 실리카 슬러리의 안정성 및 연마속도 (Effect of Recycling Time on Stability of Colloidal Silica Slurry and Removal Rate in Silicon Wafer Polishing)

  • 최은석;배소익
    • 한국세라믹학회지
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    • 제44권2호
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    • pp.98-102
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    • 2007
  • The stability of slurry and removal rate during recycling of colloidal silica slurry was evaluated in silicon wafer polishing. The particle size distribution, pH, and zeta potential were measured to investigate the stability of colloidal silica. Large particles appeared as recycling time increased while average size of slurry did not change. Large particles were identified by EDS(energy dispersive spectrometer) as foreign substances from pad or abraded silicon flakes during polishing. As the recycling time increased, pH of slurry decreased and removal rate of silicon reduced but zeta potential decreased inversely. Hence, it could be mentioned that decrease of removal rate is related to consumption of $OH^-$ ions during recycling. Attention should be given to the control of pH of slurry during polishing.

循環型 經濟社會의 構築을 위한 政策動向 (Policy for the Establishment of Recycling Society)

  • 오재현
    • 자원리싸이클링
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    • 제10권2호
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    • pp.3-12
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    • 2001
  • Nowadays, countries all over the world are deeply concerned about pollution in the global environment, so they are seeking various ways to adequately disposal of waste. Still, the environmental situation seems to be getting worse and worse. It is evident that such wastes and pollution have been endangering human life nestled in this globe up to the end of the 20th century. We should not, however, tolerate such human misconduct and mal-management of resources any more in the new millenium. For realizing a society that is sustainable for generations to come, it is important to establish a social system for minimizing wastes, promote re-use and recycling, and develop technology for improving recycling efficiencies, including product designs that facil-itate re-use and recycling and innovative technologies for processing wastes. In this paper, reviewing the current status of Korean waste problems, the governmental policy and specific approach for the establishment for recycling society is considered.

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Background of the automobile recycling law enactment in Japan

  • Togawa, Kenichi
    • 자원리싸이클링
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    • 제14권3호
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    • pp.3-5
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    • 2005
  • 일본에서는 2002년 1월 5일 흔히 "자동차재활용법"이라고 알려진 '폐자동차 재활용에 관한 법률'이 시행되었다. 본 고에서는 이 법의 특징들과 제정된 배경 및 이 법이 향후 일본 자동차 산업에 미칠 수 있는 영향들을 살펴보고자 한다. 이 법에 따라서 현재 일본의 자동차 재활용 시스템은 2005년 1월 1일부터 새로운 형태로 바뀌었다.

국내외(國內外) 자동차(自動車) 리싸이클 규제(規制) 현황(現況) (Current Status of Global ELV Recycling Regulation)

  • 유태욱
    • 자원리싸이클링
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    • 제18권5호
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    • pp.3-11
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    • 2009
  • 최근 세계적으로 지구온난화와 더불어 자원의 유효한 재이용에 많은 관심이 고조되고 있다. 유럽을 기점으로 급속하게 확대되고 있는 각국의 자동차 리싸이클 규제 주요내용과 현황을 살펴보고 자원재활용, 환경부하 저감을 위한 법률의 순기능을 발현하기 위해 향후 개선해야 할 이슈에 대해 고찰해 보았다.

Adaptive Clustering Algorithm for Recycling Cell Formation: An Application of Fuzzy ART Neural Networks

  • Seo, Kwang-Kyu;Park, Ji-Hyung
    • Journal of Mechanical Science and Technology
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    • 제18권12호
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    • pp.2137-2147
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    • 2004
  • The recycling cell formation problem means that disposal products are classified into recycling part families using group technology in their end-of-life phase. Disposal products have the uncertainties of product status by usage influences during product use phase, and recycling cells are formed design, process and usage attributes. In order to deal with the uncertainties, fuzzy set theory and fuzzy logic-based neural network model are applied to recycling cell formation problem for disposal products. Fuzzy C-mean algorithm and a heuristic approach based on fuzzy ART neural network is suggested. Especially, the modified Fuzzy ART neural network is shown that it has a good clustering results and gives an extension for systematically generating alternative solutions in the recycling cell formation problem. Disposal refrigerators are shown as examples.

리사이크링을 위한 역제조기술 (Demanufacturing Technology for Recycling)

  • 이화조
    • 한국정밀공학회지
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    • 제17권8호
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    • pp.5-14
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    • 2000
  • The treatment of technical consumer products after using is important for the conservation of our environment. In this paper the demanufacturing technology that is required to maximize the recycling rate of end-of-life products is introduced, The definitions including types of the recycling are described. The factors that have to regard in the design stage of products in order to maximize the recycling rate of the products are introduced. The objective assessment methods for the design for environment are described. Finally disassembly process and future prospect of the automations are discussed.

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폐PET병의 리싸이클링 (Recycling of Used PET-Bottles)

  • 허종오
    • 자원리싸이클링
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    • 제6권2호
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    • pp.42-46
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    • 1997
  • PET병은 투명성, 경량성, 안전성, 내약품성 등이 우수하여 94년 현재 약 1,330 백만개가 사용되었으며 연평균 20%의 증가율을 나타내고 있으며 국내 PET병의 재활용율은 약 3%로 재활용체의 영세성, 시장변동 및 기술개발능력 부족 등의 문제를 안고 있다. PET병의 재활용기술은 Hydrocyclone process, Flotation process, Solution washigng process 등이 있으며 PET병을 생산하고 있는 삼양사에서는 Solution washing process를 도입하여 처리량 8,000 톤/년의 재활용 공장을 가동하여 재생 fiber용 뿐만 아니라 포장재용 등에 사용 가능한 재활용 제품을 생산하고 있다.

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Sustainable Environmental Science & Recycling Technology Education for High School and Middle Schools: Global Scenario

  • Thenepalli, Thriveni;Chilakala, Ramakrsihna;Ahn, Ji Whan
    • 에너지공학
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    • 제28권1호
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    • pp.45-48
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    • 2019
  • Currently, the global atmosphere around the world is altering at a very rapid pace. Among those changes, some are beneficial, but most of the changes are lead to destruction to our planet. The area of environmental science is a significant resource for learning more about these changes. Due to the urbanization, the human population is increasing, natural resources becoming very limited. To solve the limited resources issues, recycling is absolutely an alternative source for the new demands and limitations. Recycling education is very important to raise awareness among students and their communities about the need for recycling and what materials are recyclable locally. In this paper, we reported the role of sustainability science and technology and the impact of recycling research education in the middle schools, both in developing countries and Asian countries and also we included the brief data of global recycling of waste.

Recycling of $CO_2$-Silicate Bonded Sand

  • Kwon, Hyuk-Moo;Lee, Seoung-Won
    • 자원리싸이클링
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    • 제5권1호
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    • pp.9-13
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    • 1996
  • Once-used $CO_2$-silicate bonded sand from domestic foundry is mostly discarded in a reclaimed land because of its bad collapsibility and reproduction properties. So this causes serious environmental problem. We can get 82% recovery of silica from used sand by scrubbing reclamation process in this research. When we repeat the reclamation-recycling of the foundry sand, artificial silica sand is broken down below 2-cycles, but natural silica sand does not destroyed when used repeatedly more than 10-cycles and have a good property of recycling with little change of its size.

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