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A Study on Effects of Rainfall on Contamination at Stream Around the Developed Quarry

강우가 석산개발 지역 주변 하천의 오염에 미치는 영향에 관한 연구

Yang-Kyu Lee1
,
Jung-Geun Han2
,
Kikwon Hong3*
이 양규1
,
한 중근2
,
홍 기권3*
1Professor, Dept. of Civil and Environmental Engineering, Daelim University College
2Professor, School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang Univ.
3Research Professor, School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang Univ
*교신저자. *Corresponding Author. 
30 March 2014. pp. 63-70
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Abstract

This paper describes the influence of rainfall on contamination at stream around the developed quarry. The investigation results are analyzed to evaluate the relationship rainfall and heavy metals (or water pollution). In the relationship rainfall and heavy metals, the result showed that the heavy metal contaminations are caused by boulder stone, waste residue and stone sludge, which is reacted with the direct contamination source, in the burried layer. It also found that the water flow change of stream according to the rainfall increase affected the large effect to a contamination level of heavy metal. the water pollution was increased by time changed from the rainy season to the dry season. That is, a lot of suspended solids had been discharge from the developed quarry due to rainfall increase, and then pollution level of water increases as the undercurrent of suspended solids is generated in stream due to rainfall decrease. Therefore, it analyzed that continuous causes of heavy metal contamination and water pollution in stream are materials in the burried layer and a discharge of pollution source from the developed quarry due to rainfall.

Keywords
Heavy metal contaminations
Water pollution
Developed quarry
Rainfall effect

본 연구에서는 강우가 석산개발 주변에 위치한 하천의 오염도에 미치는 영향을 평가하기 위하여, 강우량과 중금속 오염도의 관계 및 강우량과 수질 오염도의 관계를 분석하였다. 석산개발 부지 인근의 하천에 대한 중금속 오염도 조사 결과, 매립부지에 사용된 전석, 잔사 및 석분이 직접적인 오염원으로 작용한 것으로 분석되었다. 또한 강우량 증가에 따른 하천 내 유수량이 중금속 오염도에 큰 영향을 미치는 것으로 확인되었다. 수질오염도는 우기철에서 건기철로 변화되는 시기에 증가하였으며, 강우량이 증가하면서 과거 석산개발 부지로부터 많은 부유물질이 배출된 후, 강우가 감소함에 따라 하천에 저류되어 오염도가 증가하는 것으로 나타났다. 따라서 S하천에서 지속적인 중금속 오염 및 수질오염이 발생하고 있는 원인으로는 과거 석산개발완료 후, 매립층에 사용된 재료 및 석산개발 부지에서 오염원이 강우에 의해 배출되는 것으로 판단되었다.

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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 13
  • No :1
  • Pages :63-70
  • Received Date : 2014-02-08
  • Revised Date : 2014-03-19
  • Accepted Date : 2014-03-21
  • DOI :https://doi.org/10.12814/jkgss.2014.13.1.063
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