Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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A Development of Washoff Model for Suspended Solids in Urban Areas

도시유역의 부유고형물 유출평가를 위한 쓸림모형 개발

  • 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)
  • 주진걸 (고려대학교 건축 사회환경공학부) ;
  • 정동휘 (고려대학교 건축 사회환경공학부) ;
  • 김중훈 (고려대학교 건축 사회환경공학부) ;
  • 박무종 (한서대학교 토목공학과)
  • Received : 2010.05.07
  • Accepted : 2010.07.30
  • Published : 2010.09.30
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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

References

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