Monitoring of clogging evolution in the stormwater infiltration system and determinant factors / Carolina Gonzalez-Merchan in European journal of environmental and civil engineering, Vol. 16 Supplément N° 1 (Juin 2012)  

Public ISBD [article]  inEuropean journal of environmental and civil engineering > Vol. 16 Supplément N° 1 (Juin 2012) . - pp. s34-s47 Titre : Monitoring of clogging evolution in the stormwater infiltration system and determinant factors Type de document : texte imprimé Auteurs : Carolina Gonzalez-Merchan, Auteur ; Sylvie Barraud, Auteur ; Sébastien Le Coustumer, Auteur Année de publication : 2012 Article en page(s) : pp. s34-s47 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : In situ observation Infiltration Clogging Stormwater Résumé : Infiltration is widely used to manage stormwater in cities and their suburbs. Despite its advantages, questions remain about its long-term performance, in particular the potential for clogging. To address this problem, a field study was undertaken to assess the evolution of clogging over time by means of hydraulic resistance (R) measurements. The experiment was carried out on an infiltration basin continuously monitored for 7 years from 2004 to 2010. The work shows that clogging takes place progressively and can be slowed down by the growth of vegetation. It also showed that the variation from one event to another presented high variability. The variation of successive R-values per time unit has been statistically explained by the variation per time unit of two groups of factors: one linked to physical aspects (water volume and particle load), and more interestingly one linked to biological clogging (solar energy and air temperature), which is generally not considered for these systems. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.682457 [article] Monitoring of clogging evolution in the stormwater infiltration system and determinant factors [texte imprimé] / Carolina Gonzalez-Merchan, Auteur ; Sylvie Barraud, Auteur ; Sébastien Le Coustumer, Auteur . - 2012 . - pp. s34-s47. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 16 Supplément N° 1 (Juin 2012) . - pp. s34-s47 Mots-clés : In situ observation Infiltration Clogging Stormwater Résumé : Infiltration is widely used to manage stormwater in cities and their suburbs. Despite its advantages, questions remain about its long-term performance, in particular the potential for clogging. To address this problem, a field study was undertaken to assess the evolution of clogging over time by means of hydraulic resistance (R) measurements. The experiment was carried out on an infiltration basin continuously monitored for 7 years from 2004 to 2010. The work shows that clogging takes place progressively and can be slowed down by the growth of vegetation. It also showed that the variation from one event to another presented high variability. The variation of successive R-values per time unit has been statistically explained by the variation per time unit of two groups of factors: one linked to physical aspects (water volume and particle load), and more interestingly one linked to biological clogging (solar energy and air temperature), which is generally not considered for these systems. ISSN : 1964-8189 En ligne : http://www.tandfonline.com/doi/full/10.1080/19648189.2012.682457

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