Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Numerical Analysis for Characteristics of Flow Fields and Disinfection Performances in the Clearwell with a Porous media Wall

정수지 내 유동 특성과 유공벽을 이용한 소독능 변화에 대한 수치 해석적 연구

  • 이석원 (서울시립대학교 대학원 기계정보공학과) ;
  • 리광훈 (서울시립대학교 기계정보공학과) ;
  • 구자용 (서울시립대학교 환경공학부)
  • Received : 2007.11.07
  • Accepted : 2007.12.13
  • Published : 2007.12.15
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Abstract

Disinfection performance in clearwell is generally measured by CT, which is expressed by $C{\times}T$. C is represented by disinfection concentration, and T is represented by $T_{10}$ which means 90% contact time in clearwell. In order to improve Disinfection performance, augmentation of $T_{10}$ is required. Guide wall has been generally used to improve $T_{10}$ because $T_{10}$ changes according to flow field. In this study, porous media is proposed instead of guide wall, and disinfection performance between guide wall and porous media wall are compared. Flow field and $T_{10}$ in each clearwell are investigated as well. Improved Disinfection performance appear in case of porous media wall compare to guide wall, and best performance occur in porosity factor ${\beta}$ 1e+4.

Keywords

References

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