It is difficult to estimate residual chlorine at the dead-end area of the water distribution network because chlorine consumption is influenced by various factors. Therefore, there are many water utilities that control the amounts of chlorine in reservoirs using empirical trial-and-error methods to maintain safe levels of residual chlorine in the distribution system. In this study, an ANN model of residual chlorine concentration is proposed which could be used to reduce in chlorine use in water distribution system. The ANN model with best performance was selected by training and verification. The five scenarios for the reduction in chlorine use were analyzed by setting the input chlorine as low as 0.05~0.25 mg/L compared with the input chlorine observed in the time series. Case 4 is the best to be satisfied with the input condition (0.4 mg/L or more) and output condition (0.34 mg/L or more) at the same time. It is possible to reduce chlorine in use up to 0.2 mg/L in the maximum amount.
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Research Article|
June 01 2008
Application of Artificial Neural Network for Reducing of Chlorine Residual Concentration in Water Distribution Network
Jayong Koo;
*Department of Environmental Engineering, University of Seoul, 90, Jeonnong-dong, Dongdaemun-gu, Seoul, Korea
(Tel: 82-2-2210-2624, FAX: 82-2-2244-2245, E-mail: [email protected])
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Toyono Inakazu;
Toyono Inakazu
**Department of Civil Engineering, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji City, Tokyo, Japan
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Akira Koizumi;
Akira Koizumi
**Department of Civil Engineering, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji City, Tokyo, Japan
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Yasuhiro Arai;
Yasuhiro Arai
**Department of Civil Engineering, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji City, Tokyo, Japan
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Kyoungpil Kim;
Kyoungpil Kim
*Department of Environmental Engineering, University of Seoul, 90, Jeonnong-dong, Dongdaemun-gu, Seoul, Korea
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Jaechan Ahn
Jaechan Ahn
***Waterworks Research Institute, Seoul Metropolitan Government, 130-1 Gui 2, Gwangjin, Seoul, Korea
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Water Practice and Technology (2008) 3 (2): wpt2008032.
Citation
Jayong Koo, Toyono Inakazu, Akira Koizumi, Yasuhiro Arai, Kyoungpil Kim, Jaechan Ahn; Application of Artificial Neural Network for Reducing of Chlorine Residual Concentration in Water Distribution Network. Water Practice and Technology 1 June 2008; 3 (2): wpt2008032. doi: https://doi.org/10.2166/wpt.2008.032
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