| Title |
Estimation of Discharge Load due to Combined Sewer Overflows in the Management of Total Maximum Daily Loads |
| Authors |
박준대 ( Jun Dae Park ) ; 오승영 ( Seung Young Oh ) ; 최옥연 ( Ok Youn Choi ) |
| Keywords |
Combined sewer system; Discharge Load; Evaluation; Load estimation; Rainfall changes |
| Abstract |
The quantity of a discharge load can change with changes in rainfall in the area with a combined sewer system (CSS). To evaluate the implementation appropriately in the management of total maximum daily loads (TMDLs), the effects of rainfall changes should be considered in the estimation of the discharge load. The rainfall condition for the estimation of the discharge load in a certain year should be standardized to the same rainfall condition as that of the reference year. However, the calculation process is very complicated with its potential limitations. This study investigated and developed relatively simple methods for estimating the discharge load. Load conversion method (LCM) is designed to convert the discharge load under the current rainfall condition into that of the reference rainfall conditions. Simple rainfall data method (SRDM) is to simplify the estimation process of the discharge load by the simple conversion of rainfall data. These methods were applied to calculate the discharge load and examine the estimation results. From the results of this study the application of these methods may be useful for estimating the discharge load in the TMDL process. |