Les systèmes de transport intelligents, École Polytechnique de
Montréal
Articles du groupe MADITUC
Tracking the source for microbial contamination in distribution systems using an integrated approach |
Référence:
GAUTHIER, Vincent, BESNER, Marie-Claude, BARBEAU, Benoît, TRÉPANIER, Martin, MILLETTE, Robert, PRÉVOST, Michèle (2001). Tracking the source for microbial contamination in distribution systems using an integrated approach, Water Quality Technology Conference (WQTC), Nashville |
Type:
Conférence
Organisme:
Autres
Retour
Nouvelle recherche
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Résumé
Microbial contamination of water from treated water at the plant up to the consumers tap is a growing concern, especially considering the recent studies which indicate that distribution system integrity may always be threatened or at least questioned (Kirmeyer et al., WQTC 1999). A number of possible causes for intrusion of contaminated water have been classified amongst which transitory low pressures, cross-connections and water mains breaks and repairs were rated as having a high potential for intrusions. Yet, the link between such events and the resulting presence of waterborne pathogens in tap water is difficult to establish since detection of microbial contaminants is strongly affected by the conditions of transport throughout the distribution system. Hydraulic models are thus very useful tools to evaluate the probable origin of contamination, as demonstrated during the outbreaks which occurred following the Cabool and Gideon (Mo) distribution system contamination in the 90s. Nevertheless, very few tools remain accessible at this time to understand on a daily basis the impact on water quality of the transit throughout the distribution system. |
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