Sizing efficient underdrains for treatment wetlands - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Water Science and Technology Année : 2023

Sizing efficient underdrains for treatment wetlands

Résumé

Treatment wetlands are recognized as an effective technology for mitigating the impacts of urban runoff. However, there is no consensus on the design guidelines, and the effects of some design features, such as the underdrain system, remain unexplored. A simple analog model has been developed to mimic the underdrain network (when operating at saturation) and to evaluate the spatial heterogeneity of the flow entering it. The model has been applied to a treatment wetland in the Paris area and shows that the underdrain network was largely undersized, likely causing an uneven distribution of infiltrating flow along the length of the treatment wetland. It was also shown that this analog model can be used for optimization purposes and that it is important to use conservative values of the rugosity coefficient when designing an underdrain network.
Fichier principal
Vignette du fichier
Morvannou et al. - 2023 - Sizing efficient underdrains for treatment wetland.pdf (782.58 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-04564889 , version 1 (30-04-2024)

Licence

Identifiants

Citer

Ania Morvannou, Matthieu Dufresne, Marie-Christine Gromaire, Stéphane Troesch, Nicolas Forquet. Sizing efficient underdrains for treatment wetlands. Water Science and Technology, 2023, 89 (2), pp.241 - 251. ⟨10.2166/wst.2023.417⟩. ⟨hal-04564889⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More