Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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The Seasonal Variation of Free Chlorine Residuals by Water Supply Distance in Daegu

대구 지역의 계절 변화에 따른 급수관내 잔류염소 농도 거동

  • 이태관 (계명대학교 환경과학과)
  • Received : 2005.05.03
  • Accepted : 2005.06.09
  • Published : 2005.06.15
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Abstract

This paper presents the integrated technique of water quality analysis and Geographic Information System(GIS) for assessing the variation of free chlorine residuals by water temperature and supply distance in Sangri water supply system in Daegu. GIS was utilized for mapping projectmap, extraction of a pipeline route, and supply distance. Free chlorine residual is analyzed every month for appraising the seasonal variation. As a result, free chlorine residuals are affected both water temperature and water supply distance, and it becomes worse as water temperature and water supply distance is increased. To maintain 0.4mg/l of free chlorine residual, initial dose concentration should be over 1.85mg/l in summer.

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References

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