Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지

A Quantitative/Qualitative Study of Infiltration/Inflow for Order Decision of Sewer pipe Maintenance

하수관거보수 순위결정을 위한 침입수/유입수량에 대한 정량/정성 분석의 실행 연구

  • 박명균 (수원대학교 토목공학과) ;
  • 김대성 (수원대학교 토목공학과) ;
  • 안원식 (수원대학교 토목공학과) ;
  • 오정미 (수원대학교 토목공학과)
  • Received : 2005.08.11
  • Accepted : 2006.02.08
  • Published : 2006.02.15
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Abstract

This study was carried out to obtain quantities of infiltration, inflow and exfiltration on sewer pipes of three areas at a small city. From the results, the most investigated sewer pipes should be infiltrated by underground water and undetermined water. Flowrate commonly showed two peak at 6 to 8 a.m. and 6 to 9 p.m. and which may be influenced by the sewer flowrate with washing or bathing time. BOD/TN ratio of below 4.0 were inferior as compared with proper criteria 5.1. Infiltration/inflow rates of three areas were 21.7% and $0.08m^3/km$ of A, 12.4% and $0.015m^3/km$ of B, 22.4% and $0.021m^3/km$ of C, respectively. This indicates that infiltration/inflow rate of A was obviously greater than that of B and C. Also, these results show that we can conduct sewer maintenance in good order as A, C and B zone.

Keywords

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