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| Titre : |
Simplified hydraulic model of French vertical-flow constructed wetlands
|
| in | Water Science and Technology , Vol. 70 n° 5, 01/09/2014 |
| Auteur(s) : |
Luis Guillermo Arias, Auteur (et co-auteur)
Jean-Luc Bertrand-Krajewski, Auteur (et co-auteur) Pascal Molle, Auteur (et co-auteur) |
| Type de document : | Article |
| Sujets : | Égouts ; Eaux usées -- Épuration Eau de pluie ; Zone humide ; Modélisation environnementale |
| Résumé : |
Designing vertical-flow constructed wetlands (VFCWs) to treat both rain events and dry weather flow is a complex task due to the stochastic nature of rain events. Dynamic models can help to improve design, but they usually prove difficult to handle for designers. This study focuses on the development of a simplified hydraulic model of French VFCWs using an empirical infiltration coefficient – infiltration capacity parameter (ICP). The model was fitted using 60-second-step data collected on two experimental French VFCW systems and compared with Hydrus 1D software. The model revealed a season-by-season evolution of the ICP that could be explained by the mechanical role of reeds. This simplified model makes it possible to define time-course shifts in ponding time and outlet flows. As pon[...] Designing vertical-flow constructed wetlands (VFCWs) to treat both rain events and dry weather flow is a complex task due to the stochastic nature of rain events. Dynamic models can help to improve design, but they usually prove difficult to handle for designers. This study focuses on the development of a simplified hydraulic model of French VFCWs using an empirical infiltration coefficient – infiltration capacity parameter (ICP). The model was fitted using 60-second-step data collected on two experimental French VFCW systems and compared with Hydrus 1D software. The model revealed a season-by-season evolution of the ICP that could be explained by the mechanical role of reeds. This simplified model makes it possible to define time-course shifts in ponding time and outlet flows. As ponding time hinders oxygen renewal, thus impacting nitrification and organic matter degradation, pond |
| Article en page(s) : | 909-916 |
| Langue(s) : | Anglais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=169972 |
Exemplaires (1)
| Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
|---|---|---|---|---|---|---|
| Montpellier | Bibliothèque | Périodiques Montpellier | sans cote | Papier Périodique | Empruntable Disponible |