Orage: design-support modelof vertical flow CSO-CWs | Orage : un outil d’aide au dimensionnement des filtres plantés à écoulement vertical pour le traitement des rejets urbains de temps de pluie
2016
Palfy, T.G. | Meyer, D. | Gourdon, R. | Troesch, S. | Molle, P. | Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Institut National des Sciences Appliquées de Lyon (INSA Lyon) ; Université de Lyon-Institut National des Sciences Appliquées (INSA) | Brelot, Elodie
Colloque avec actes et comité de lecture. internationale.
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Afficher plus [+] Moins [-]anglais. In France, CSO-CWs are variably saturated vertical flow constructed wetlands with throttled outflow. These systems treatTSS, COD and NH4-N and mitigate flow peaks. The received flowsand concentrations are stochastic; as such,designoptimizationrequires a dynamic approach. Process-based models would be difficult to handle and therefore, a new design support tool called Orage was developed. Orage is based on a simplifiedcore modeland hasan iterative shell for optimization as well asa user interface. It interpolates the optimal dimensions and the simplest recommendable materialsite-specifically,using a low number of inputs and inflow data series. The core model simulates hydraulics and the removal of TSS, COD and NH4-Nand has to be reliableto base predictions on its output. First results with the core show a good fitting to a single load and a load series with closed material balance. The sensitivity analysis confirmed model robustness andwarned that different parameters are important for a good performancein the case of the two operation modes
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