Modified AM2 with the hydrolysis step and the ammonium consideration

Sonia Hassam (1) , A. Allegrini (2) , Elena Ficara (2) , B. Cherki (1) , Jérôme Harmand (3, 4, 5)

1 Tlemcen Automatics Laboratory
2 DIIAR, Environmental section
3 LBE - Laboratoire de Biotechnologie de l'Environnement [Narbonne]
4 MISTEA - Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie
5 MODEMIC - Modelling and Optimisation of the Dynamics of Ecosystems with MICro-organisme

We have introduced a hydrolysis step to the AM2 which is considered as an important phase in the anaerobic digestion process when particulate organic substrates are to be degraded. Furthermore, we have considered ammonium as an additional state variable and its contribution to the alkalinity of the solution, while preserving the simplicity of the model. Simulations and comparisons with the ADM1 show satisfactory results. In the following we will call the modified model AM2 as the AM2H and the AM2HN to distinguish between the model with the introduction of the hydrolysis step and the one with the ammonium consideration respectively.

Mots clés: ADM1; AM2; AM2H; AM2HN; hydrolysis step; ammonium; identification; estimation

Domaines: Sciences du Vivant [q-bio]

Sonia Hassam, A. Allegrini, Elena Ficara, B. Cherki, Jérôme Harmand. Modified AM2 with the hydrolysis step and the ammonium consideration. 13. World Congress on Anaerobic Digestion: Recovering (bio) Resources for the World. AD13, Jun 2013, Santiago de Compostela, Spain. Juan M. Lema, Fernando Fdez-Polanco, Marta Carballa, Jorge Rodriguez, Sonia Suarez 2013, 171 p., 2013, Proceedings of 13th World Congress on Anaerobic Digestion. ⟨hal-01190420⟩