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Evaluation of chlorine decay kinetics expressions for drinking water distribution systems modelling

Kastl, G. J., Fisher, I. H. and Jegatheesan, V. 1999, Evaluation of chlorine decay kinetics expressions for drinking water distribution systems modelling, Journal of water supply : research and technology - AQUA, vol. 48, no. 6, pp. 219-226.

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Title Evaluation of chlorine decay kinetics expressions for drinking water distribution systems modelling
Author(s) Kastl, G. J.
Fisher, I. H.
Jegatheesan, V.
Journal name Journal of water supply : research and technology - AQUA
Volume number 48
Issue number 6
Start page 219
End page 226
Total pages 8
Publisher IWA Publishing
Place of publication London, England
Publication date 1999
ISSN 1606-9935
1605-3974
Keyword(s) chlorine
drinking water
chlorine decay
reactions
Summary The decay of chlorine in drinking water involves a complex set of reactions that is usually simplified to first order kinetics in models of water quality in distribution systems. However, to be useful in optimising chlorine dosing regimes, the kinetics expression should accurately describe the shape of the chlorine decay curve for different chlorine doses and be able to simulate re-chlorination. After considering the nature of the reactions involved in chlorine decay, five simplified reaction schemes were evaluated for their suitability to describe chlorine concentration in bulk water. Each scheme was fitted to a sample of experimental data of chlorine decay in raw water obtained from Warragamba Dam (the major source of water supplied to Sydney, Australia). A scheme involving two parallel reactions of organic carbon compounds with chlorine is both necessary and sufficient to satisfy the requirements of modelling chlorine decay accurately.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039680

Document type: Journal Article
Collection: Faculty of Science, Engineering and Built Environment
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