A generic and systematic procedure to derive a simplified model from the anaerobic digestion model No. 1 (ADM1)
Résumé
The anaerobic digestion model No.1 (ADM1) developed by the IWA Task Group for mathematical modelling
of anaerobic digestion processes Batstone et al. [1] is a structural model which describes the main
biochemical and physicochemical processes. For such purposes, other models have been proposed to
describe anaerobic processes with a reduced set of parameters, state variables and processes. Among
them, the anaerobic model No. 2 (AM2) proposed by Bernard et al. [2] which describes the degradation
of soluble organic compounds, appears as a model well-suited for control and optimization applications.
In this work, we aimed at obtaining a model of reduced dimensions on the basis of which to synthesize
regulators or observers with guarantees of performance, stability and robustness. Specifically, our contribution
is twofold. First, a modified version of the AM2 is proposed while preserving the simplicity of
the new model “AM2HN”. Second, we propose a systematic and generic state association procedure in
order to obtain such a simplified model from any validated ADM1.
Simulations and comparisons with the predictions of theADM1for a case study involving the anaerobic
digestion of waste sludge are presented along with satisfactory results.
Domaines
Ingénierie de l'environnement
Origine : Fichiers produits par l'(les) auteur(s)
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