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Article Dans Une Revue Water Science and Technology Année : 2017

Using numerical simulation of a one stage vertical flow wetland to optimize the depth of a zeolite layer

Simulation numérique d'un premier étage de filtre plantés de roseaux pour optimiser la couche de zéolite

Résumé

This simulation study investigates the treatment performance of a compact French vertical flow wetland using a zeolite layer in order to increase ammonium nitrogen removal. For the modelling exercise, the biokinetic model CW2D of the HYDRUS Wetland Module is used. The calibrated model is able to predict the effect of different depths of the zeolite layer on ammonium nitrogen removal in order to optimize the design of the system. For the model calibration, the hydraulic effluent flow rates as well as influent and effluent concentrations of chemical oxygen demand (COD) and NH4-N have been measured. To model the adsorption capacity of zeolite, Freundlich isotherms have been used. The results present the simulated treatment performance with three different depths of the zeolite layer, 10 cm (default), 15 cm and 20 cm, respectively. The increase of the zeolite layer leads to a significant decrease of the simulated NH4-N effluent concentration.
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Dates et versions

hal-02606939 , version 1 (16-05-2020)

Identifiants

Citer

B. Pucher, Hubert Ruiz, J. Paing, Florent Chazarenc, Pascal Molle, et al.. Using numerical simulation of a one stage vertical flow wetland to optimize the depth of a zeolite layer. Water Science and Technology, 2017, 75 (3), pp.650-658. ⟨10.2166/wst.2016.545⟩. ⟨hal-02606939⟩

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