Sampling campaigns at several points in a sector of a distribution network were conducted during several months to study the spatial and temporal variation of the free chlorine concentration (FCC) and disinfection by-product concentrations (DBPC) at the scale of a residential neighborhood. The water residence times (RT) at these sampling points and for the same period were also simulated using EPANET. Within the neighborhood, the results reveal significant differences in measured FCCs and DBPCs and low intra-day variability. Catching most of the FCC variability would require several sampling points to cover the spatial variability, whereas for DBPC, it is more relevant to obtain a higher sampling frequency. Moreover, the sampling point choices for DBPC should be based on previous FCC monitoring campaigns. At the studied scale, the RT alone is not the best indicator for the selection of the monitoring points for FCCs and DBPCs.
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14 June 2017
This article was originally published in
Journal of Water Supply: Research and Technology-Aqua
Article Contents
Research Article|
April 11 2017
Variability of water residence time and free chlorine and disinfection by-product concentrations within a residential neighborhood
Simon Rochette;
Simon Rochette
1Civil and Water Engineering Department, Faculty of Sciences and Engineering, Université Laval, Pavillon Adrien-Pouliot, 1065, rue de la Médecine, Quebec City (Quebec), Canada G1 V 0A6
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Geneviève Pelletier;
1Civil and Water Engineering Department, Faculty of Sciences and Engineering, Université Laval, Pavillon Adrien-Pouliot, 1065, rue de la Médecine, Quebec City (Quebec), Canada G1 V 0A6
E-mail: [email protected]
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Christian Bouchard;
Christian Bouchard
1Civil and Water Engineering Department, Faculty of Sciences and Engineering, Université Laval, Pavillon Adrien-Pouliot, 1065, rue de la Médecine, Quebec City (Quebec), Canada G1 V 0A6
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Manuel Rodriguez
Manuel Rodriguez
2Graduate School of Land Planning and Regional Development, Faculty of Planning, Architecture, Art and Design, Université Laval, Pavillon Félix-Antoine-Savard, 2325, allée des Bibliothèques, Quebec City (Quebec), Canada G1 V 0A6
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Journal of Water Supply: Research and Technology-Aqua (2017) 66 (4): 219–228.
Article history
Received:
July 29 2016
Accepted:
February 12 2017
Citation
Simon Rochette, Geneviève Pelletier, Christian Bouchard, Manuel Rodriguez; Variability of water residence time and free chlorine and disinfection by-product concentrations within a residential neighborhood. Journal of Water Supply: Research and Technology-Aqua 14 June 2017; 66 (4): 219–228. doi: https://doi.org/10.2166/aqua.2017.083
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