title: Using numerical simulation of a one stage vertical flow wetland to optimize the depth of a zeolite layer.
abstract: 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.
authors.affiliation: Institute of Sanitary Engineering and Water Pollution Control, University of Natural Resources and Life Sciences Vienna (BOKU), Muthgasse 18, Vienna A-1190, Austria E-mail: guenter.langergraber@boku.ac.at.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Pucher
authors.affiliation: Jean Voisin, Les Charmilles Z.A. les Poupinières, Beaumont-la-Ronce 37360, France; Ecole des Mines de Nantes, CNRS, GEPEA, UMR 6144, 4 rue Alfred Kastler, Nantes 44307, France.
authors.forename: Hernán
authors.initials: H
authors.lastname: Ruiz
authors.affiliation: Jean Voisin, Les Charmilles Z.A. les Poupinières, Beaumont-la-Ronce 37360, France.
authors.forename: Joëlle
authors.initials: J
authors.lastname: Paing
authors.affiliation: Ecole des Mines de Nantes, CNRS, GEPEA, UMR 6144, 4 rue Alfred Kastler, Nantes 44307, France.
authors.forename: Florent
authors.initials: F
authors.lastname: Chazarenc
authors.affiliation: IRSTEA, UR MALY, 5 rue de la Doua, Villeurbanne F-69100, France.
authors.forename: Pascal
authors.initials: P
authors.lastname: Molle
authors.affiliation: Institute of Sanitary Engineering and Water Pollution Control, University of Natural Resources and Life Sciences Vienna (BOKU), Muthgasse 18, Vienna A-1190, Austria E-mail: guenter.langergraber@boku.ac.at.
authors.forename: Guenter
authors.initials: G
authors.lastname: Langergraber
mesh_terms: D000327:Adsorption; D064751:Ammonium Compounds / Q000032:analysis*; D057919:Biological Oxygen Demand Analysis; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*; D053833:Wetlands; D017641:Zeolites / Q000737:chemistry*
chemical_list: D064751:Ammonium Compounds; D014874:Water Pollutants, Chemical; D017641:Zeolites; D009584:Nitrogen