Browse > Article
http://dx.doi.org/10.3741/JKWRA.2021.54.9.643

Spatiotemporal chlorine residual prediction in water distribution networks using a hierarchical water quality simulation technique  

Jeong, Gimoon (Department of Civil Engineering, Kyung Hee University)
Kang, Doosun (Department of Civil Engineering, Kyung Hee University)
Hwang, Taemun (Department of Land, Water and Environment Research, Korea Institute of Civil engineering and building Technology)
Publication Information
Journal of Korea Water Resources Association / v.54, no.9, 2021 , pp. 643-656 More about this Journal
Abstract
Recently, water supply management technology is highly developed, and a computer simulation model plays a critical role for estimating hydraulics and water quality in water distribution networks (WDNs). However, a simulation of complex large water networks is computationally intensive, especially for the water quality simulations, which require a short simulation time step and a long simulation time period. Thus, it is often prohibitive to analyze the water quality in real-scale water networks. In this study, in order to improve the computational efficiency of water quality simulations in complex water networks, a hierarchical water-quality-simulation technique was proposed. The water network is hierarchically divided into two sub-networks for improvement of computing efficiency while preserving water quality simulation accuracy. The proposed approach was applied to a large-scale real-life water network that is currently operating in South Korea, and demonstrated a spatiotemporal distribution of chlorine concentration under diverse chlorine injection scenarios.
Keywords
Chlorine residual analysis; Hierarchical simulation; Spatiotemporal distribution; Water distribution network;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sakarya, A.B.A., and Mays, L.W. (2000). "Optimal operation of water distribution pumps considering water quality." Journal of Water Resources Planning and Management, Vol. 126, No. 4, pp. 210-220.   DOI
2 Wang, Z., Polycarpou, M.M., Shang, F., and Uber, J.G. (2001). "Design of feedback control algorithm for chlorine residual maintenance in water distribution systems." Proceedings World Water and Environmental Resources Congress 2001, FL, U.S., pp. 1-10.
3 Chung, W.S., Kim, I.T., Lee, H.D., and Yu, M.J. (2004). "Subject water quality management in small water distribution reservoir using residual chlorine decay." Seoul Studies, Vol. 5, No. 2, pp. 27-43
4 Kang, D., and Lansey, K. (2010). "Real-time optimal valve operation and booster disinfection for water quality in water distribution systems." Journal of Water Resources Planning and Management, Vol. 136, No. 4, pp. 463-473.   DOI
5 Ministry of Environment (ME). (2013) Research on reduction of tap water distrust and drinking rate increase. Report No. 076-1932-301-260.
6 K-water (2010). Technical support report for re-chlorination.
7 K-water (2017). Development of techniques for reconstructing and operating water belt. Technical report, KIWE-WWRC-17-01.
8 Lee, S. (2019). Study on equalization of residual chlorine concentration in water supply systems using optimization techniques. Ph. D. dissertation, Korea University.
9 Prasad, T.D., Walters, G.A., and Savic, D.A. (2004). "Booster disinfection of water supply networks: Multiobjective approach." Journal of Water Resources Planning and Management, Vol. 130, No. 5, pp. 367-376.   DOI
10 Rossman, L., Woo, H., Tryby, M., Shang, F., Janke, R., and Haxton, T. (2020). EPANET 2.2 user manual. U.S. Environmental Protection Agency, EPA/600/R-20/133, Washington, DC, U.S.
11 Rossman, L.A., and Boulos, P.F. (1996). "Numerical methods for modeling water quality in distribution systems: A comparison." Journal of Water Resources Planning and Management, Vol. 122, No. 2, pp. 137-146.   DOI
12 Sherwood, T.K., Pigford, R.L., and Wilke, C.R. (1975). Mass transfer. McGraw-Hill, NY, U.S.
13 Tryby, M.E., Boccelli, D.L., Uber, J.G., and Rossman, L.A. (2002). "Facility location model for booster disinfection of water supply networks." Journal of Water Resources Planning and Management, Vol. 128, No. 5, pp. 322-333.   DOI