Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Characterization of Stormwater Pollutants Runoff in Industrial Complex

강우시 산업단지에서의 오염물질 유출특성

  • Bang, Ki-Woong (Department of Environmental Engineering, Taejon National University of Technology) ;
  • Lee, Jun-Ho (Department of Environmental Engineering, Chongju National College of Science and Technology) ;
  • Choi, Jong-Soo (Land Research Institute, Korea Land Corporation)
  • 박기웅 (대전산업대학교 환경공학과) ;
  • 이준호 (청주과학대학 환경공업과) ;
  • 최종수 (한국토지공사 토지연구원)
  • Received : 1999.09.08
  • Accepted : 1999.11.12
  • Published : 2000.02.28
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Abstract

The purpose of this study is to investigate the characteristics of pollutants overflow on storm events and the first flush analysis in industrial complex. Eight sub-basins in the Chongju industrial complex were selected for sampling and study with different characteristics during the period from June 1997 to August 1998. Water quality parameters of stormwater runoff such as $BOD_5$, COD, SS, TKN, $NO_3-N$, $PO_4-P$, TP, n-Hexane extracts, Cr, Cu, Pb and Fe were analyzed. During the storm events, measured concentration ranges of $BOD_5$, COD, SS, $NO_3-N$, TKN, $PO_4-P$, TP, r-Hexane extracts, Cr, Cu, Pb and Fe were 2~324 mg/L, 5~810 mg/L, 1~1,110 mg/L, 0.01~10.89 mg/L, 0.1~59.8 mg/L, 0.08~7.02 mg/L, 0.1~7.8 mg/L, 0.1~1,723.6 mg/L, 0.001~0.363 mg/L, 0.001~0.488 mg/L, 0.001~1.28 mg/L, and 0.26~18.91 mg/L, respectively in the industrial complex watersheds. And a quantitative of first flush has been presented. First flush occurs more frequently as the ratio of impervious area increases.

본 연구의 목적은 산업단지 유역에서 강우시 유출수를 조사하여 수질변동과 초기유출 특성 등 오염물질 유출특성을 파악함에 있다. 조사대상유역은 청주산업단지내 유역특성이 상이한 8개 소유역을 선정하여 1997년 6월부터 1998년 8월까지 조사하였다. 분석항목은 $BOD_5$, COD, SS, $NO_3-N$, TKN, $PO_4-P$, TP, n-Hexane 추출물질, Cr, Cu, Pb, Fe 등 중금속이다. 강우시 산업단지에서 발생하는 유출수의 농도범위는 $BOD_5$, COD, SS, $NO_3-N$, TKN, $PO_4-P$, TP, n-Hexane 추출물질 Cr, Cu, Pb, Fe에 대해 각각 2~324 mg/L, 5~810 mg/L, 1~1.110 mg/L, 0.01~10.89 mg/L, 0.1~59.8 mg/L, 0.08~7.02 mg/L, 0.1~7.8 mg/L, 0.1~1,723.6 mg/L, 0.001~0.363 mg/L, 0.001~0.488 mg/L, 0.001~1.28 mg/L, 그리고 0.26~18.91 mg/L으로 분석되었다. 또한, 초기유출현상에 대하여 수량화하였으며, 불투수층면적 비율이 증가할수록 초기유출현상의 발생빈도가 증가하는 것으로 분석되었다.

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