Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Optimum Flow and Pollution Load Monitoring Time of Combined Sewers of Urban Watersheds during Dry Weather

비강우시 도시 합류식 하수도의 오염부하 산정을 위한 최적관측시간 산정연구

  • 최용훈 (강원대학교 지역건설공학과) ;
  • 원철희 (강원대학교 환경연구소) ;
  • 박운지 (강원대학교 환경공학과) ;
  • 서지연 (강원대학교 지역건설공학과) ;
  • 신민환 (국립환경과학원 금강물환경연구소) ;
  • 이찬기 (강원대학교 환경공학과) ;
  • 최중대 (강원대학교 지역건설공학과)
  • Published : 2009.05.31
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Abstract

Flow and pollution load were monitored at 2 combined sewer outlets (C-1 and C-2) of urban watersheds during dry weather from September, 2004 to April, 2006 for 20 months. The objectives were to investigate the diurnal variation of flow and pollutant load and to find the proper sampling time that could measure representative flow and pollutant load. Pollution load closed to the average daily load at C-1 could be measured at 00:00 hour and by the mean of 15:00 and 18:00 hour measures, and 15:00 and 21:00 hour measures, respectively. In addition at C-2, it was 21:00 hour and the mean of 15:00 and 18:00 hour measures. This study concluded that arbitrary sampling of flow and water quality could cause large errors in the estimation of urban pollution load and recommended that urban combined sewers should be monitored when flow and water quality showed daily average and concentration.

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References

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