Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/75354
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Type: Journal article
Title: Assessment of chloramination control strategy based on free-ammonia concentration
Author: Motzko, S.
Fabris, R.
Badalyan, A.
Henderson, R.
Chow, C.
Vitanage, D.
Citation: Journal of Water Supply: Research and Technology. AQUA, 2009; 58(1):29-39
Publisher: IWA Publishing
Issue Date: 2009
ISSN: 1606-9935
1365-2087
Organisation: Institute for Mineral and Energy Resources
Statement of
Responsibility: 
Skadi Motzko, Rolando Fabris, Alexander Badalyan, Ralph Henderson, Christopher W. K. Chow and Dammika Vitanage
Abstract: A new approach of using free-ammonia measurements as the basis of a control strategy to optimise a chloraminated water distribution system was tested in a laboratory evaluation. A test rig with a newly developed low level on-line free-ammonia analyser was constructed to investigate two different control configurations, the currently used feedback and the proposed feedforward. The results of this trial showed that only using the free-ammonia analyser for feedback control is not ideal due to its inability to detect chlorine overdosing situations. Better results regarding the maximum yield of disinfectant residuals when using the feedforward configuration were observed, and free-ammonia concentrations below 0.065 mg/L were consistently achieved.
Keywords: ammonia monitoring; chloramination control; control strategy; disinfection
Rights: © IWA Publishing 2009
RMID: 0020119691
DOI: 10.2166/aqua.2009.068
Appears in Collections:Institute for Mineral and Energy Resources publications

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