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The impact of private networks on off-flavour episodes in tap water

2009; UWA Publishing; Volume: 58; Issue: 8 Linguagem: Inglês

10.2166/aqua.2009.020

1365-2087

L. Maillet, D. Lénès, David Benanou, Pierre Le Cloirec, Olivier Correc,

Water-Energy-Food Nexus Studies

Research Article| December 01 2009 The impact of private networks on off-flavour episodes in tap water L. Maillet; L. Maillet 1Anjou Recherche, Veolia Environnement, Chemin de la Digue, 78 603, Maisons-Laffitte, France Tel.: +33 1 34 93 82 24 Fax: +33 1 34 93 31 10 laetitia.maillet@veolia.com; dorothee.lenes@veolia.com Search for other works by this author on: This Site PubMed Google Scholar D. Lénès; D. Lénès 1Anjou Recherche, Veolia Environnement, Chemin de la Digue, 78 603, Maisons-Laffitte, France Search for other works by this author on: This Site PubMed Google Scholar D. Benanou; D. Benanou 1Anjou Recherche, Veolia Environnement, Chemin de la Digue, 78 603, Maisons-Laffitte, France Search for other works by this author on: This Site PubMed Google Scholar P. Le Cloirec; P. Le Cloirec 2Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du Général Leclerc, CS 50837, 35708, Rennes Cedex 7, France3Université européenne de Bretagne, France Search for other works by this author on: This Site PubMed Google Scholar O. Correc O. Correc 4CSTB, 11, Rue Henri Picherit, 44 323, Nantes, France Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2009) 58 (8): 571–579. https://doi.org/10.2166/aqua.2009.020 Article history Received: January 09 2009 Accepted: October 30 2009 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation L. Maillet, D. Lénès, D. Benanou, P. Le Cloirec, O. Correc; The impact of private networks on off-flavour episodes in tap water. Journal of Water Supply: Research and Technology-Aqua 1 December 2009; 58 (8): 571–579. doi: https://doi.org/10.2166/aqua.2009.020 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Complaints registered by Veolia water agencies underlined the design and operating parameters in the private network can cause taste and odour (T&O) episodes. Three experiments were performed to elucidate the impact of the private network. Firstly, a lab-scale pilot study was designed involving four different pipes, consisting of copper, polyvinyl chloride, stainless steel and galvanized steel in which several residence times were simulated. The study was then conducted on a real private network. Finally, laboratory static experiments on tap seals were carried out. To evaluate T&O potential of drinking water samples, sensory analyses by a taste panel were performed. To detect and to quantify the molecules involved, stir bar sorptive extraction coupled with gas chromatography/mass spectrometry analyses was applied. The results showed that the residence time had a significant influence on the appearance of organic and metallic compounds. An audit of the private network identified two main critical points—corrosion and leaching—both of which are influenced by the hydraulic system. Finally, static experiments conducted on seals revealed a large quantity of polycyclic aromatic hydrocarbons leaching into water and a chemical or plastic taste according to the panel. These results suggest a huge potential impact of the private network on water quality if operating conditions are not optimal. PAHs, private network, sanitary fittings, SBSE-GC/MS, tap water, taste and odour This content is only available as a PDF. © IWA Publishing 2009 You do not currently have access to this content.