상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제27권3호
  • /
  • Pages.313-324
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  • 2013
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
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우수유출 모형을 이용한 합류식하수관로시스템의 월류량, 월류빈도 산정 기준 결정 연구

Criteria for calculation of CSO volume and frequency using rainfall-runoff model

  • 이건영 (중앙대학교 사회기반시스템공학부) ;
  • 나용운 (서울시 상수도연구원) ;
  • 류재나 (중앙대학교 사회기반시스템공학부) ;
  • 오재일 (중앙대학교 사회기반시스템공학부)
  • 투고 : 2013.01.28
  • 심사 : 2013.05.27
  • 발행 : 2013.06.15
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초록

It is widely known that untreated Combined Sewer Overflows (CSOs) that directly discharged from receiving water have a negative impact. Recent concerns on the CSO problem have produced several large scale constructions of treatment facilities, but the facilities are normally designed under empirical design criteria. In this study, several criteria for defining CSOs (e.g. determination of effective rainfall, sampling time, minimum duration of data used for rainfall-runoff simulation and so on) were investigated. Then this study suggested a standard methodology for the CSO calculation and support formalized standard on the design criteria for CSO facilities. Criteria decided for an effective rainfall was over 0.5 mm of total rainfall depth and at least 4 hours should be exist between two different events. An Antecedent dry weather period prior to storm event to satisfy the effective rainfall criteria was over 3 days. Sampling time for the rainfall-runoff model simulation was suggested as 1 hour. A duration of long-term simulation CSO overflow and frequency calculation should be at least recent 10 year data. A Management plan for the CSOs should be established under a phase-in of the plan. That should reflect site-specific conditions of different catchments, and formalized criteria for defining CSOs should be used to examine the management plans.

키워드

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피인용 문헌

  1. Application of the Poisson Cluster Rainfall Generation Model to the Urban Flood Analysis vol.48, pp.9, 2015, https://doi.org/10.3741/JKWRA.2015.48.9.729
  2. Set up Reduction Goals of Combined Sewer Overflow Pollutant Load Using Long-Term Rainfall-Runoff Model Simulation vol.35, pp.11, 2013, https://doi.org/10.4491/KSEE.2013.35.11.785
  3. Development of flood inundation area GIS database for Samsung-1 drainage sector, Seoul, Korea vol.49, pp.12, 2016, https://doi.org/10.3741/JKWRA.2016.49.12.981