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오염원에 따른 오염지역 물성 변화 및 물리탐사 적용 사례 소개

Change in Physical Properties depending on Contaminants and Introduction to Case Studies of Geophysical Surveys Applied to Contaminant Detection

  • 유희은 (세종대학교 에너지자원공학과) ;
  • 김빛나래 (세종대학교 에너지자원공학과) ;
  • 송서영 (세종대학교 에너지자원공학과) ;
  • 조성오 (세종대학교 에너지자원공학과) ;
  • ;
  • 남명진 (세종대학교 에너지자원공학과)
  • Yu, Huieun (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Kim, Bitnarae (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Song, Seo Young (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Cho, Sung Oh (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Caesary, Desy (Department of Energy and Mineral Resources Engineering, Sejong University) ;
  • Nam, Myung Jin (Department of Energy and Mineral Resources Engineering, Sejong University)
  • 투고 : 2019.06.28
  • 심사 : 2019.08.30
  • 발행 : 2019.08.31

초록

최근 안전 및 환경 등이 사회의 주요 이슈가 되고 있다. 특히 공사 현장 주변의 지반 침하 등에 따른 피해를 막기 위해 지하안전특별법까지 제정되는 등 안전에 대해서는 구체적인 노력이 진행되어 왔다. 환경 오염문제와 관련해서도 대상 지역의 지중유체 이동경로 파악 등을 통해 가능한 환경 오염 영역을 특성화 하고 지중에서 오염의 처리 및 모니터링에 대한 연구가 진행되고 있다. 이러한 연구의 일환으로, 기존에는 주로 자원 탐사, 지질 특성 파악, 지반 탐사 등에 이용되었던 물리탐사 기법이 환경 오염 영역 파악에 적용되고 있다. 이 논문에서는 환경 오염 지역 특성화를 위한 물리탐사 연구의 기초 연구로서, 유류, 침출수, 중금속 및 질소산화물 등 여러 오염원의 특성에 따른 오염지역의 전기적 물성 변화 특성을 알아보았다. 또한 이러한 물성 변화를 파악할 수 있는 물리탐사 기법들 즉, 전기비저항 탐사, 유도분극 탐사, 지표투과레이더 탐사 등의 오염 탐사 적용 가능성에 대해 검토한 후, 다양한 오염지역에서의 실제 수행된 물리탐사 사례들을 분석하였다.

Recently, safety and environmental concerns have become major social issues. Especially, a special underground-safety law has been made and enacted to prevent ground subsidence around construction sites. For environmental problems, several researches have started or will start on characterization of contaminated sites, in-situ environmental remediation in subsurface, and monitoring of remediation results. As a part of the researches, geophysical surveys, which have been mainly applied to explore mineral resources, geological features or ground, are used to characterize not only contaminated areas but also fluid flow paths in subsurface environments. As a basic study for the application of geophysical surveys to detect contamination in subsurface, this paper analyzes previous researches to understand changes in geophysical properties of contaminated zones by various contaminants such as leachate, heavy metals, and non-adequate phase liquid (NAPL). Furthermore, this paper briefly introduces how geophysical surveys like direct-current electrical resistivity, induced polarization and ground penetration radar surveys can be applied to detect each contamination, before analyzing case studies of the applications in contaminated areas by NAPL, leachate, heavy metal or nitrogen oxides.

키워드

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