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A Study on the Recycling of Detoxified Waste Asbestos

무해화 처리 폐석면의 재활용에 관한 기초연구

  • Kim, Tae-Hyoung (Department of Living and Built Environment Research, KICT) ;
  • Song, Tae-Hyeb (Department of Living and Built Environment Research, KICT) ;
  • Shin, Hyen-Gyoo (Material Technology Center, Korea Testing Laboratory) ;
  • Jang, Kyung-Pil (Department of Living and Built Environment Research, KICT)
  • 김태형 (한국건설기술연구원 국민생활연구본부) ;
  • 송태협 (한국건설기술연구원 국민생활연구본부) ;
  • 신현규 (한국산업기술시험원 재료기술센터) ;
  • 장경필 (한국건설기술연구원 국민생활연구본부)
  • Received : 2019.11.25
  • Accepted : 2020.06.24
  • Published : 2020.06.30

Abstract

In accordance with the amendment of the Industrial Safety and Health Act of 2007, Korea completely prohibited the import, distribution and manufacture of asbestos like Europe and Japan. Accordingly, the current problem of asbestos is the safe maintenance and disposal of asbestos construction material, the disposal of asbestos, and the final disposal of asbestos building materials. If the asbestos building material is made harmless, it may be classified as general waste or as recyclable waste. Therefore, this study evaluated the physical and chemical characterization of detoxified asbestos powder and the applicability of secondary products. In this study, it was found that applying the appropriate temperature and pressure for catalysis during asbestos desalination through low temperature chemical treatment was the most important factor.

현재의 석면의 문제는 사용단계에서의 공기 중 석면의 비산 없이 안정적으로 사용하는 문제, 해체단계에서 석면 비산을 최소화하여 해체하는 문제, 해체된 폐석면 건축자재를 안정적으로 최종 처리 하느냐의 문제이다. 석면 폐기물의 처리는 매립 또는 부분적 응용처리 등과 같이 구분할 수 있다. 석면 건축자재를 무해화 하면, 이를 일반 폐기물로 분류하거나 또는 재활용 가능 폐기물로 분류가 가능할 것이다. 따라서 본 연구는 무해화 처리한 폐석면 분체의 물리, 화학적 특성 분석 이를 활용한 2차 제품 적용성을 평가하였다. 본 연구를 통하여 중 저온 화학적 처리를 통핸 석면 무해화 시 촉매반응을 위한 적정한 온도와 압력을 가하는 것이 가장 중요한 요소인 것으로 나타났다.

Keywords

References

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