## Abstract This paper presents the results of a modeling and simulation study of an activated sludge process in a sequencing batch reactor (SBR), with emphasis on total nitrogen removal. This study focuses on the effect of dissolved oxygen (DO) and the phase length of aeration on the effluent chem
Combining Models ADM1 and ASM2d in a Sequencing Batch Reactor Simulation
β Scribed by J. Kauder; N. Boes; C. Pasel; J.-D. Herbell
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 420 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0930-7516
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β¦ Synopsis
Abstract
The Anaerobic Digestion Model No. 1 (ADM) and the Activated Sludge Model No. 2d (ASM) have been combined in a sequencing batch reactor simulation using a FORTRAN ODE solver. Special attention has been paid to the interface definition between the two models which use different biological state variables. The simulation results demonstrate the alternating treatment characteristics resulting from the sequence of anaerobic and aerobic steps. A parameter study reveals the process optimization potential of the model. Some numerical issues of the ADM are discussed in detail. The Jacobian matrix is provided, and the error handling of negative gasβrates and negative concentrations is described from a numerical point of view.
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## Abstract Simultaneous nitrification and denitrification (SND) via the nitrite pathway and anaerobicβanoxicβenhanced biological phosphorus removal (EBPR) are two processes that can significantly reduce the energy and COD demand for nitrogen and phosphorus removal. The combination of these two pro