Journal of Industrial Technology (산업기술연구)
- Volume 22 Issue B
- /
- Pages.95-101
- /
- 2002
- /
- 1229-9588(pISSN)
- /
- 1598-1371(eISSN)
Analysis of Storm Water Run-off Characteristics during Wet Weather
강우시 합류식 하수관거의 유출특성 분석
- Published : 2002.12.31
Abstract
Much of domestic city is served by combined sewer system rather than separate sanitary or storm sewers. During wet weather, when the volume of sanitary sewage and storm water entering the combined sewers exceeds the system capacity, the system is designed to overflow at several designated CSOs. The objective of this research is to have grasp of characteristics of combined sewer runoff and to evaluate efficiently the intercepted volume of CSOs. During the wet weather in first rainfall, SS load at each site H-1, H-2, and H-3 were 600kg/event, 370kg/event, and 289kg/event, SS load at each site in second rainfall were 216kg/event, 113kg/event, and 37.2kg/event. EMCs at each site were 702mg/L, 816mg/L, 861mg/L in first rainfall and 99.9mg/L, 161.9mg/L, 103.6mg/L in second rainfall, respectively. First flush coefficients b at each site were 0.237, 0.166, and 0.151.