Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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An assessment of the effect of air scouring and swabbing pig cleaning technique on water distribution pipes

공기주입과 스와빙 피그를 이용한 상수관로 세척 효과 평가

  • Bae, Cheolho (K-water Research Institute, Korea Water Resources Corporation) ;
  • Lee, Doojin (K-water Research Institute, Korea Water Resources Corporation) ;
  • Choi, Doo-Yong (K-water Research Institute, Korea Water Resources Corporation) ;
  • Jun, Hongjin (K-water Research Institute, Korea Water Resources Corporation) ;
  • Park, Sehyun (K-water Research Institute, Korea Water Resources Corporation) ;
  • Choi, Taeho (K-water Research Institute, Korea Water Resources Corporation)
  • 배철호 (한국수자원공사 K-water연구원 상하수도연구소) ;
  • 이두진 (한국수자원공사 K-water연구원 상하수도연구소) ;
  • 최두용 (한국수자원공사 K-water연구원 상하수도연구소) ;
  • 전홍진 (한국수자원공사 K-water연구원 상하수도연구소) ;
  • 박세현 (한국수자원공사 K-water연구원 상하수도연구소) ;
  • 최태호 (한국수자원공사 K-water연구원 상하수도연구소)
  • Received : 2015.04.27
  • Accepted : 2015.07.31
  • Published : 2015.08.15
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Abstract

Deposits discharged through the cleaning mainly were cement mortar, bitumen paintings and rust pieces, and fragments of perforation, stones and gravels. Deposits were more removed through swabbing pig cleaning rather than air scouring cleaning on the whole. However, air scouring cleaning were not influenced by the constraint conditions such as a change in the diameter or the presence of the valve in water mains compare to swabbing pig cleaning. So, it was thought that air scouring cleaning might be more favorable to water distribution network cleaning in the future. After the cleaning, water quality including residual chlorine and turbidity also was improved because of the removal of a significant amount of the deposits. Therefore, if the cleaning is continuously and regularly implemented in water mains, it is expected that it will help to recover the reliability and to preserve the health of water quality.

Keywords

References

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