Abstract
Water supply facilities are vulnerable to extremeweather events, such as droughts and floods. To establish a sustainable solution that resists accidents and disasters, a distributed system is required. To supply high-quality tap water using the existing water-supply network, rechlorination facilities must be installed to secure residual chlorine at the pipe end. In this study, a process is developed to determine the injection points and dosages of rechlorination using the latest pressure-driven analysis. The method was compared to the results of demand driven analysis methods. The proposed model was applied to P City in Korea to draw results. A detailed evaluation was performed to study how water pressure head and demand-based hydraulic and water quality analysis results impact the injection points and dosages of rechlorination. Thus, the existing demand-based model shows significant spatial deviations in the pressure head in the presence of water pressure drops, which subsequently lead to over-estimation of chlorine injection dosages for maintaining the concentration of residual chlorine. However, the proposed model involves a numerically validated theory and draws more reasonable results for hydraulic, water quality, and rechlorination dosages. The proposed model can be used as a decision-making tool based on hydraulic analysis for the supply of water of a stable quality.
| Original language | English |
|---|---|
| Article number | 697 |
| Journal | Water (Switzerland) |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2019 Apr 1 |
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Keywords
- Hydraulic analysis
- Pressure-driven analysis
- Rechlorination facility
- Residual chlorine
- Water quality analysis
- Water supply network
ASJC Scopus subject areas
- Biochemistry
- Geography, Planning and Development
- Aquatic Science
- Water Science and Technology
Cite this
A comparative study on a hydraulic and water-quality analysis method for determining rechlorination injection points for a water-supply network. / Lee, Sang Myoung; Lee, Ho Min; Yoo, Do Guen; Kim, Joong Hoon.
In: Water (Switzerland), Vol. 11, No. 4, 697, 01.04.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A comparative study on a hydraulic and water-quality analysis method for determining rechlorination injection points for a water-supply network
AU - Lee, Sang Myoung
AU - Lee, Ho Min
AU - Yoo, Do Guen
AU - Kim, Joong Hoon
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Water supply facilities are vulnerable to extremeweather events, such as droughts and floods. To establish a sustainable solution that resists accidents and disasters, a distributed system is required. To supply high-quality tap water using the existing water-supply network, rechlorination facilities must be installed to secure residual chlorine at the pipe end. In this study, a process is developed to determine the injection points and dosages of rechlorination using the latest pressure-driven analysis. The method was compared to the results of demand driven analysis methods. The proposed model was applied to P City in Korea to draw results. A detailed evaluation was performed to study how water pressure head and demand-based hydraulic and water quality analysis results impact the injection points and dosages of rechlorination. Thus, the existing demand-based model shows significant spatial deviations in the pressure head in the presence of water pressure drops, which subsequently lead to over-estimation of chlorine injection dosages for maintaining the concentration of residual chlorine. However, the proposed model involves a numerically validated theory and draws more reasonable results for hydraulic, water quality, and rechlorination dosages. The proposed model can be used as a decision-making tool based on hydraulic analysis for the supply of water of a stable quality.
AB - Water supply facilities are vulnerable to extremeweather events, such as droughts and floods. To establish a sustainable solution that resists accidents and disasters, a distributed system is required. To supply high-quality tap water using the existing water-supply network, rechlorination facilities must be installed to secure residual chlorine at the pipe end. In this study, a process is developed to determine the injection points and dosages of rechlorination using the latest pressure-driven analysis. The method was compared to the results of demand driven analysis methods. The proposed model was applied to P City in Korea to draw results. A detailed evaluation was performed to study how water pressure head and demand-based hydraulic and water quality analysis results impact the injection points and dosages of rechlorination. Thus, the existing demand-based model shows significant spatial deviations in the pressure head in the presence of water pressure drops, which subsequently lead to over-estimation of chlorine injection dosages for maintaining the concentration of residual chlorine. However, the proposed model involves a numerically validated theory and draws more reasonable results for hydraulic, water quality, and rechlorination dosages. The proposed model can be used as a decision-making tool based on hydraulic analysis for the supply of water of a stable quality.
KW - Hydraulic analysis
KW - Pressure-driven analysis
KW - Rechlorination facility
KW - Residual chlorine
KW - Water quality analysis
KW - Water supply network
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UR - http://www.scopus.com/inward/citedby.url?scp=85065017562&partnerID=8YFLogxK
U2 - 10.3390/w11040697
DO - 10.3390/w11040697
M3 - Article
VL - 11
JO - Water (Switzerland)
JF - Water (Switzerland)
SN - 2073-4441
IS - 4
M1 - 697
ER -