Maximizing microalgae productivity in a light-limited chemostat

Type : ACTI
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2018
Lieu de publication : -
Titre de la conférence : 9th Vienna International Conference on Mathematical Modelling
Lieu de la conférence : Vienna, Austria
Année de la conférence : 2018
Date de début : 21/02/2018
Date de fin : 23/02/2018
Titre du proceeding : IFAC-PapersOnLine
Editeur de presse : -
Volume : 51
Fascicule : 2
Pages : 735-740
Auteurs (3) : MARTINEZ Carlos BERNARD Olivier MAIRET Francis
Editeurs scientifiques (0) :
DOI : 10.1016/j.ifacol.2018.04.001
URL : https://www.sciencedirect.com/science/article/pii/S2405896318301290?via%3Dihub
Abstract : Light supply is one of the most important parameters to be considered for enhancing microalgae growth in photobioreactors (PBR) with artificial light. However, most of the mathematical works do not consider incident light as a parameter to be optimized. In this work based on a simple model of light-limited growth, we determine optimal values for the dilution rate and the incident light intensity in order to maximize the steady-state microalgal surface productivity in a continuous culture. We also show that in optimal conditions there is a minimal initial microalgal concentration (and we give a simple expression to determine it) to guarantee the persistence of the population. Finally, in the context of enhancing microalgae productivity by reducing light absorption by microalgae, we conclude our work by studying the influence of the chlorophyll-carbon quota on the maximal productivity.
Mots-clés : Dynamics; control; Industrial biotechnology; Photoinhibition; Biomass productivity; Microalgae; Photoacclimation; Chlorophyll
Commentaire : -
Tags : PHYTOPULSE
Fichier attaché : -
Citation :
Martinez C, Bernard O, Mairet F (2018) Maximizing microalgae productivity in a light-limited chemostat. IFAC-PapersOnLine. 2, Vol: 51, , 735-740 | doi: 10.1016/j.ifacol.2018.04.001