Dynamics and control of a periodically forced microalgae culture

Type : ACTI
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2019
Lieu de publication : -
Titre de la conférence : 12th International-Federation-of-Automatic-Control (IFAC) Symposium on Dynamics and Control of Process Systems including Biosystems (DYCOPS)
Lieu de la conférence : Florianopolis, Brasil
Année de la conférence : 2019
Date de début : 23/04/2019
Date de fin : 26/04/2019
Titre du proceeding : IFAC-PapersOnLine
Editeur de presse : -
Volume : 52
Fascicule : 1
Pages : 922-927
Auteurs (4) : MARTINEZ Carlos MAIRET Francis MARTINON Pierre BERNARD Olivier
Editeurs scientifiques (0) :
DOI : 10.1016/j.ifacol.2019.06.180
URL : https://hal.inria.fr/hal-01891648
Abstract : Microalgae cultivation with wastewater is a promising way of reducing the energetic needs for wastewater treatment and the costs of biofuel production. However, the very turbid medium is not favorable for the development of microalgae. Indeed, light, the key element for photosynthesis, rapidly vanishes along depth due to absorption and scattering. Therefore it is crucial to understand the effects of the depth on turbid cultures. In this work, we study theoretically the long-term behavior of a continuous culture of microalgae exposed to a periodic source of light. By allowing periodic variations of the depth and the hydraulic retention time, we show that the microalgae population is forced to a periodic regime. Finally, we address numerically the problem of determining the optimal variations of the depth and the hydraulic retention time for maximizing the productivity of the culture in the periodic regime.
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Citation :
Martinez C, Mairet F, Martinon P, Bernard O (2019) Dynamics and control of a periodically forced microalgae culture. IFAC-PapersOnLine. 1, Vol: 52, , 922-927 | doi: 10.1016/j.ifacol.2019.06.180