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A Dynamic Model for Anaerobic Digestion of Microalgae

Francis Mairet 1, 2 Olivier Bernard 1 Monique Ras 3 Laurent Lardon 3 Jean-Philippe Steyer 1, 3
1 BIOCORE - Biological control of artificial ecosystems
INRA - Institut National de la Recherche Agronomique, CRISAM - Inria Sophia Antipolis - Méditerranée , LOV - Laboratoire d'océanographie de Villefranche
2 Anlysis and Mathematical Modeling, Valparaiso
Departamento de Matematica [Valparaiso]
Abstract : The coupling between a microalgal pond and an anaerobic digester is a promising alternative for sustainable energy production by transforming carbon dioxide into methane (which is a biofuel). In this paper, a dynamic model for anaerobic digestion of microalgae is developed with the objective of helping in the coupled process management. This model includes the dynamics of ammonium and volatile fatty acids since both can lead to inhibition and process unstability. Three reactions are considered: two hydrolysis-acetogenesis steps in parallel for the sugars-lipids and for the proteins, and a methanogenesis step. Simulation results were compared with experimental data for Chlorella vulgaris digestion. The model fits the data of the considered 140 day experiment.
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https://hal.inria.fr/hal-00848431
Contributor : Jean-Luc Gouzé <>
Submitted on : Friday, July 26, 2013 - 10:32:08 AM
Last modification on : Wednesday, August 25, 2021 - 3:28:32 AM

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Francis Mairet, Olivier Bernard, Monique Ras, Laurent Lardon, Jean-Philippe Steyer. A Dynamic Model for Anaerobic Digestion of Microalgae. IFAC World Congress, 2011, Milano, Italy. ⟨10.3182/20110828-6-IT-1002.02636⟩. ⟨hal-00848431⟩

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