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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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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.
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참고문헌 (23)
참고문헌 신청
Ashey, R. M. / 2004 / Solids in sewers / IWA
Choi, S . Y. / 2005 / Study of the first flush’s water quality in road runoff
FWR / 1998 / Urban pollution management manual
Gromaire, M. C. / 2001 / Contribution of different sources to the pollution of wet weather flows in combined sewers / Water Research 35(2):521~533
Gupta, K. / 1996 / Specific relationships for the first flush load in combined sewer flows / Water Research 30(5):1244~1252
Choi, S . Y. / 2005 / Study of the first flush’s water quality in road runoff
FWR / 1998 / Urban pollution management manual
Gromaire, M. C. / 2001 / Contribution of different sources to the pollution of wet weather flows in combined sewers / Water Research 35(2):521~533
Gupta, K. / 1996 / Specific relationships for the first flush load in combined sewer flows / Water Research 30(5):1244~1252
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