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Efficient management of drinking water distribution systems through the application of water quality modeling

Jegatheesan, V., Shu, L., Streeter, M. and Fracchia, H. 2003, Efficient management of drinking water distribution systems through the application of water quality modeling, in Water quality management and the environment in Asia (Asian waterqual 2003). : selected proceedings of Asian Waterqual 2003, the IWA Asia-Pacific Regional Conference, held in Bangkok, Thailand, 19-23 October 2003, IWA Publishing, London, England.

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Title Efficient management of drinking water distribution systems through the application of water quality modeling
Author(s) Jegatheesan, V.
Shu, L.
Streeter, M.
Fracchia, H.
Conference name IWA Asia-Pacific Regional Conference (2003 : Bangkok, Thailand)
Conference location Bangkok, Thailand
Conference dates 20-22 Oct. 2003
Title of proceedings Water quality management and the environment in Asia (Asian waterqual 2003). : selected proceedings of Asian Waterqual 2003, the IWA Asia-Pacific Regional Conference, held in Bangkok, Thailand, 19-23 October 2003
Editor(s) Panswad, T.
Polprasert, C.
Karnchanawong, S.
Publication date 2003
Series Water science and technology
Conference series IWA Asia-Pacific Regional Conference
Publisher IWA Publishing
Place of publication London, England
Keyword(s) biofilm
disinfectant decay
disinfection by-products
nitrogenous compounds
organic/inorganic compounds
water quality modelling
Summary The quality of drinking water generally degrades when it is delivered through a distribution system due to the decay of disinfectant, which subsequently allows the re-growth of microorganisms in the distribution system. A model that describes the changes that occur in the water quality in distribution system is needed to determine whether to enhance the treatment processes or to improve the distribution system so that microbiological criteria are met. This paper describes how chlorine decay kinetics are modeled and the model output is used in finding the elements that are contributing to the consumption of chlorine at the treatment plant other than the water itself; this allows better control of chlorine dosing at the treatment plant, which in tum will reduce the formation of disinfectant by-products. In addition, the model will accurately predict the decay due to the organic/inorganic and nitrogenous compounds that are remaining in the water at any point in the distribution system, which will indicate the status of the distribution system with respect to its chlorine consumption. Further, if re-chlorination is introduced in the distribution system downstream of the treatment plant, the model will predict the chlorine decay due to the slow reacting organic and nitrogenous compounds accurately.
ISBN 9781843394822
1843394820
ISSN 0273-1223
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039631

Document type: Conference Paper
Collection: Faculty of Science, Engineering and Built Environment
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