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A Development of Washoff Model for Suspended Solids in Urban Areas  

Joo, Jingul (School of Civil, Environmental and Architectural Engineering, Korea University)
Jung, Donghwi (School of Civil, Environmental and Architectural Engineering, Korea University)
Kim, Joonghoon (School of Civil, Environmental and Architectural Engineering, Korea University)
Park, Moojong (Department of Civil Engineering, Hanseo University)
Publication Information
Journal of Korean Society on Water Environment / v.26, no.5, 2010 , pp. 789-795 More about this Journal
Abstract
Suspended Solid (SS) is one of the main pollutants and discharges with attached other pollutants such as heavy metal and toxic substance. It is very important to estimate and forecast the release characteristics of SS for water quality improvement. The current studies assumed that SS release rate is proportional to the rain intensity and suggested exponential washoff models. These models related to the shear force of flow. In this study, a new washoff model is suggested based on relation with SS release rate and mean flow rate of the basin surface which is closely related to the shear force. The proposed model is applied to the Goonja drainage district in Seoul, Korea. The new washoff model simulates the SS discharge more accurately in the various rainfall types. The model can be widely applied to the real problems such as the management of non-point source pollutant and the design of treatment facilities.
Keywords
Non-point source pollutant; Suspended solid; Urban area; Washoff model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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