A Comparative Study on a Hydraulic and Water-Quality Analysis Method for Determining Rechlorination Injection Points for a Water-Supply Network
- Authors
- Lee, Sang Myoung; Lee, Ho Min; Yoo, Do Guen; Kim, Joong Hoon
- Issue Date
- 4월-2019
- Publisher
- MDPI
- Keywords
- water supply network; hydraulic analysis; water quality analysis; pressure-driven analysis; rechlorination facility; residual chlorine
- Citation
- WATER, v.11, no.4
- Indexed
- SCIE
SCOPUS
- Journal Title
- WATER
- Volume
- 11
- Number
- 4
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/66537
- DOI
- 10.3390/w11040697
- ISSN
- 2073-4441
- Abstract
- Water supply facilities are vulnerable to extreme weather 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.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.