Jesús Zambrano
School of Business, Society and Engineering, Mälardalen University, Västerås, Sweden
Bengt Carlsson
Department of Information Technology, Uppsala University, Uppsala, Sweden
Stefan Diehl
Centre for Mathematical Sciences, Lund University, Lund, Sweden
Emma Nehrenheim
School of Business, Society and Engineering, Mälardalen University, Västerås, Sweden
Ladda ner artikel
http://dx.doi.org/10.3384/ecp17142824Ingår i: Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
Linköping Electronic Conference Proceedings 142:121, s. 824-830
Publicerad: 2018-12-19
ISBN: 978-91-7685-399-3
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
The analysis of a simpli?ed activated sludge process (ASP) with one main dissolved substrate and one main particulate biomass has been conducted in steady-state conditions. The ASP is formed by a plug-?ow reactor and a settler tank. The biomass growth rate is described by a Monod function. For this process, it is not possible to get an explicit expression for the ef?uent substrate concentration when the process is subject to a ?xed sludge age. However, when the substrate concentration of the in?uent is much greater than that of the ef?uent, an approximate and explicit relation between them is obtained. Numerical examples with two models for the settler are presented. One model is the ideal settler, which assumes a complete thickening of the sludge. The other model includes hindered settling and sludge compression. Numerical results show the effectiveness and the limitations of the proposed solution under these scenarios.
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