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비점오염원 저감을 위한 봉산 인공습지의 오염물질 정화효율 평가

Evaluation of Treatment Efficencies of Pollutants in Bongsan Constructed Wetlands for Treating Non-point Source Pollution

  • 최익원 (순천대학교 생물환경학과) ;
  • 문성동 (강원대학교 산업경영공학과) ;
  • 서동철 (순천대학교 생물환경학과) ;
  • 강세원 (순천대학교 생물환경학과) ;
  • 임병진 (국립환경과학원 영산강 물환경연구소) ;
  • 박종환 (국립환경과학원 영산강 물환경연구소) ;
  • 김갑순 (국립환경과학원 영산강 물환경연구소) ;
  • 이준배 (국립환경과학원 영산강 물환경연구소) ;
  • 허종수 (경상대학교 응용생명과학부) ;
  • 조주식 (순천대학교 생물환경학과)
  • Choi, Ik-Won (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Moon, Sung-Dong (Department of Industrial & Management Engineering, Kangwon National University) ;
  • Seo, Dong-Cheol (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Kang, Se-Won (Department of Bio-Environmental Sciences, Sunchon National University) ;
  • Lim, Byung-Jin (Yeongsan River Environmental Research Center) ;
  • Park, Jong-Hwan (Yeongsan River Environmental Research Center) ;
  • Kim, Kap-Soon (Yeongsan River Environmental Research Center) ;
  • Lee, Jun-Bae (Yeongsan River Environmental Research Center) ;
  • Heo, Jong-Soo (Division of Applied Life Science, Gyeongsang National University) ;
  • Cho, Ju-Sik (Department of Bio-Environmental Sciences, Sunchon National University)
  • 투고 : 2011.11.27
  • 심사 : 2011.12.15
  • 발행 : 2011.12.31

초록

주암호 상수원 상류지역인 송광천에 위치한 봉산 인공습지의 수생태학적 효율 향상을 위한 관리 방안을 제시하기 위하여 시기별, 처리단계별 및 오염물질 부하량별 수처리 효율을 평가하였다. 유입원수의 BOD, SS, T-N 및 T-P의 평균 함량은 $1.87mg\;L^{-1}$, $1.62mg\;L^{-1}$, $11.47mg\;L^{-1}$$4.40mg\;L^{-1}$이었으며, 연평균 처리효율은 BOD, SS, T-N 및 T-P가 각각 26%, 18%, 16% 및 9%로서 전반적으로 처리효율이 낮았으나 유입수 농도가 높아서 오염물질의 제거량은 매우 높은 편이었다. 인공습지 처리단계별 BOD, SS, T-N 및 T-P 변화를 조사한 결과는 모든 항목에서 침강지의 처리효율이 가장 높았고 BOD와 T-P는 습지 II > 습지 I, SS와 T-N은습지 I > 습지 II 순으로 처리효율이 높았다. 인공습지 구성 시스템별 오염물질 부하량에 따른 오염물질 처리량은 BOD는 침강지 > 습지 I > 습지 II, SS는 침강지 > 습지 II > 습지 I, T-N은 습지 I > 침강지 > 습지 II, T-P는 습지 II > 침강지 > 습지 I 순으로 높았다.

To treat non-point source pollution in Juam lake, removal efficiencies of pollutants were investigated in Bongsan constructed wetlands (CWs) at different treatment time, stages and wastewater loads. The constructed wetlands consisted of forebay, $1^{st}$ and $2^{nd}$ wetlands. The concentrations of BOD, SS, T-N, and T-P in inflow were $1.87mg\;L^{-1}$, $1.62mg\;L^{-1}$, $11.47mg\;L^{-1}$, and $4.40mg\;L^{-1}$, respectively. The removal rates of BOD, SS, T-N, and T-P in Bongsan CWs were 26, 18, 16 and 9%, respectively. The removal rates of BOD and T-N were higher than those for SS and T-P. The amounts of pollutant removal in Bongsan CWs were higher in the order of forebay > $1^{st}$ wetland > $2^{nd}$ wetland for BOD, forebay > $2^{nd}$ wetland > $1^{st}$ wetland for SS, $1^{st}$ wetland > forebay > $2^{nd}$ wetland for T-N and $2^{nd}$ wetland > forebay > $1^{st}$ wetland for T-P.

키워드

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피인용 문헌

  1. Assessment of Constructed Wetland of Removal Efficiency of Non-point Source Pollution by Rainfall Characteristics in Wolmun Stream vol.14, pp.1, 2014, https://doi.org/10.9798/KOSHAM.2014.14.1.327
  2. Limitation Analysis on Estimation of SS Pollutant Load using Korean Ministry of Environment's 8-Day Interval Flow and Water Quality data vol.32, pp.2, 2016, https://doi.org/10.15681/KSWE.2016.32.2.149
  3. Evaluation of Treatment Efficencies of Pollutants in Juksancheon Constructed Wetlands for Treating Non-point Source Pollution vol.45, pp.4, 2012, https://doi.org/10.7745/KJSSF.2012.45.4.642