상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제21권2호
  • /
  • Pages.187-193
  • /
  • 2007
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

침전지 추적자 실험을 위한 Dispersion Number의 적용

Application of Dispersion Number for Analysis of Tracer test in Sedimentation Basin

  • 김영일 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 박노석 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 정남정 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 김성수 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 배병욱 (대전대학교 환경공학과)
  • 투고 : 2006.11.23
  • 심사 : 2007.03.22
  • 발행 : 2007.04.15
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초록

Reynolds and Froude numbers, along with tracer tests, have been widely used to estimate hydrodynamics in full-scale horizontal sedimentation basin in water treatment plants (WTPs). In spite of this, the former numbers do not reflect actual operating conditions, instead most often being based on the dimensions of the structures. The index and graphic analyses most often used were found to be too subjective to accurately analyze tracer test results. In order to overcome these limitations, dispersion number was applied for analysis of tracer test results. Tracer tests were conducted in eight full-scale sedimentation basins in six WTPs, and then analyzed by index and graphic analyses as well as by dispersion number. The dispersion number was more useful as an indicator of the hydrodynamic behavior in the basin. It was also found that as dispersion number decreased, flow approached the ideal for plug flow in which case, higher sedimentation efficiency could be expected.

키워드

참고문헌

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