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Modeling of Discharge Characteristics of Combined Sewer Overflows(CSOs) from a Small Urban Watershed in Daejeon City  

Kim, Jeong-Kon (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Ko, Ick-Hwan (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Publication Information
Journal of Korean Society of Environmental Engineers / v.28, no.6, 2006 , pp. 654-660 More about this Journal
Abstract
This study investigated the discharge characteristics of combined sewer overflows(CSOs) at a small watershed located in the Ojeong-cheon area of the Daejeon-cheon, Daejeon City. The long-term variations of discharges, water quality, and SS loads from 2001 to 2004 were simulated using SWMM. The simulation results indicated that suspended solid(SS) loads during the rainy seasons(July${\sim}$August) were highest throughout the whole year, but not substantially higher than those during the dry seasons. This result is due to the fact that contaminants do not buildup significantly because of frequent rainfall events during the wet seasons. It was estimated that about 9.3% of SS was discharged to the receiving body the during dry seasons while 90.7% during the rainy seasons. Further analysis showed that during the wet seasons SS loads discharged at the site as CSOs and at the wastewater treatment plant without treatment were 38% and 62%, respectively.
Keywords
Urban River; CSOs; Water Quality; SWMM;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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