La Houille Blanche
Number 3-4, Juin 1990
|Page(s)||207 - 212|
|Published online||01 October 2009|
Modèle de la nitrification des rejets dans la Garonne au niveau de l'agglomération toulousaine
Model of nitrification of waste into the Garonne river at the level of the City of Toulouse
Agence de l'Eau Adour-Garonne, 84 rue du Férétra, 31400 Toulouse - 61 36 37 38
2 Institut de Mécanique des Fluides, Avenue du Pr C. Soula, 31400 Toulouse - 61 28 58 00
3 Unité de Recherche Traitement Biologique des Eaux INSA, Avenue de Rangueil, 31077 Toulouse - 61 55 95 13
Model of nitrification of waste into the Garonne river at the level of the City of Toulouse For several years now the amount of nitrogen in the Garonne, downstream from Toulouse, has been worrying the people managing water supplies. A nitration model is presented, with a law for the growth of the biomass including an inhibition effect, coupled to a hydrodynamic model based on the Saint-Venant equations: the kinetics is propped up with batch experiments, The complete model is validated from observations carried out on the ground. The tool thus made will allow managers to simulate different scenarios and the impact of pollution on the Garonne.
© Société Hydrotechnique de France, 1990
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