The River Wupper, a tributary of the River Rhine, is at several locations influenced by anthropogenous nitrogen input, hydraulic structures, and influents from other tributaries. These influences have an impact both on the water quality and on the hydrodynamic conditions. The model approaches used for this article are based on work of Rauch et al. and the River Water Quality Model No. 1; they allow the simulation of the nitrogen conversion in the River Wupper. They are compatible with the activated sludge models and can thus be used also for integrated approaches. The calibration and validation of the model was realized using actual data of the River Wupper over a length of 60 km with one dam, 10 weirs, three wastewater treatment plants and 11 tributaries. The model considers the nitrogen conversion and COD removal and has a strong focus on biofilm processes in the benthic zone. Additional information is given about the sedimentation processes, the physical oxygen input processes, biofilm detachment processes, molecular diffusion, the influence of the laminar border layer and the changing of COD fractions and biofilm densities.
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Research Article|
May 01 2006
Modelling COD and N removal in the water and in the benthic biofilm for the River Wupper in Germany Available to Purchase
M. Wichern;
*Institute of Water Quality Control and Waste Management, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany, (E-mail: [email protected])
E-mail: [email protected]
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O. Kehl;
O. Kehl
*Institute of Water Quality Control and Waste Management, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany, (E-mail: [email protected])
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V. Erbe;
V. Erbe
**Wupperverband, T2- Wasserwirtschaft Abwasser, Sonderaufgaben, Untere Lichtenplatzer Straße 100, D-42289 Wuppertal, Germany, (E-mail: [email protected])
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M. Luebken;
M. Luebken
*Institute of Water Quality Control and Waste Management, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany, (E-mail: [email protected])
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P.A. Wilderer
P.A. Wilderer
*Institute of Water Quality Control and Waste Management, Technical University of Munich, Am Coulombwall, 85748 Garching, Germany, (E-mail: [email protected])
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Water Sci Technol (2006) 53 (10): 163–171.
Citation
M. Wichern, O. Kehl, V. Erbe, M. Luebken, P.A. Wilderer; Modelling COD and N removal in the water and in the benthic biofilm for the River Wupper in Germany. Water Sci Technol 1 May 2006; 53 (10): 163–171. doi: https://doi.org/10.2166/wst.2006.309
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