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The Monitoring of Corrosive Water Quality in Water Distribution System by Corrosion Characteristics of Raw and Tap water

원·정수의 부식특성에 따른 상수관망에서의 부식성 수질 모니터링

  • 배석문 (부산광역시 상수도사업본부 수질연구소) ;
  • 김도환 (부산광역시 상수도사업본부 수질연구소) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 최동훈 (부산광역시 상수도사업본부 수질연구소) ;
  • 김익성 (부산광역시 상수도사업본부 수질연구소) ;
  • 김경아 (부산광역시 상수도사업본부 수질연구소)
  • Received : 2015.02.24
  • Accepted : 2015.05.06
  • Published : 2015.07.31

Abstract

The tap water is generally known to be corrosive in the pH range at 6.5 ~ 7.5. And the degree of corrosion varies depending on the types of raw water such as river surface water or lake water of the dam. Although several corrosion index represents the corrosivity of tap water, the typical corrosion indexes such as Langelier saturation index (LI) and calcium carbonate precipitation potential (CCPP) were calculated to monitoring the corrosive water quality about raw and tap water in water distribution system. To control the corrosive water quality, the correlation between corrosion index and water quality factors were examined. In this study, corrosion index (LI, CCPP) and the pH was found to be most highly correlated.

Keywords

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