PREDICTION OF COMBINED SEWER OVERFLOWS CHARACTERIZED BY RUNOFF |
Jeongmi Seo1, Yongkyun Cho2†, Myongjin Yu1, Seoungkoo Ahn1, and Hyunook Kim1 |
1Department of Environmental Engineering, University of Seoul 2Department of Environmental Engineering, Hanseo University |
Corresponding Author:
Yongkyun Cho ,Tel: +82-41- 660-1433 , Fax: +82-41-660-1119 , Email: enpial@hanseo.ac.kr |
Received: September 17, 2004; Accepted: March 17, 2005. |
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ABSTRACT |
Pollution loading of Combined Sewer Overflows (CSOs) is frequently over the capacity of a wastewater treatment plant (WWTP) receiving the water. The objectives of this study are to investigate water quality of CSOs in Anmyun-ueup, Tean province and to apply Storm Water Management Model to predict flow rate and water quality of the CSOs. The capacity of a local WWTP was also estimated according to rainfall duration and intensity. Eleven water quality parameters were analyzed to characterize overflows. SWMM model was applied to predict the flow rate and pollutant load of CSOs during rain event. Overall, profile of the flow and pollutant load predicted by the model well followed the observed data. Based on model prediction and observed data, CSOs frequently occurs in the study area, even with light precipitation or short rainfall duration. Model analysis also indicated that the local WWTP's capacity was short to cover the CSOs. |
Keywords:
CSOs | SWMM | WWTP | runoff | prediction |
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