Quantifying the potential of microalgae to remove nutrients from wastewater

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 : 8th IFAC Conference on Foundations of Systems Biology in Engineering (FOBSE)
Lieu de la conférence : Valencia, Spain
Année de la conférence : 2022
Date de début : 15/10/2019
Date de fin : 18/10/2019
Titre du proceeding : IFAC-PapersOnLine
Editeur de presse : -
Volume : 52
Fascicule : 6
Pages : 287-292
Auteurs (5) : MARTINEZ Carlos MAIRET Francis PLAZA Louis SCIANDRA Antoine BERNARD Olivier
Editeurs scientifiques (0) :
DOI : 10.1016/j.ifacol.2019.12.272
URL : https://www.sciencedirect.com/science/article/pii/S2405896319321573
Abstract : The main resources limiting microalgae growth are typically phosphorus, nitrogen, and light. Based on the theory of the light limited chemostat, the variable cell quota approach, and photoacclimation models, we build a mathematical model for describing microalgae growth under limitation by these resources. The model is calibrated with a data set from the literature. Then, by numerical simulations, we find that under constant operation of the culture and constant environmental conditions (illumination, temperature, pH, etc.), solutions of the model approach towards either a positive or an extinction steady state. Based on the positive steady state, and in the context of wastewater treatment, we evaluate the capacity of microalgae to remove contaminants. We showed that the impacts of depth, incident light intensity, and dilution rate (or hydraulic retention time) have a crucial role on the optimization of the nutrient removal efficiency. (C) 2019, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
Mots-clés : Control; Biotechnology; Wastewater treatment; Microalgae; Cell quota model
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Citation :
Martinez C, Mairet F, Plaza L, Sciandra A, Bernard O (2019) Quantifying the potential of microalgae to remove nutrients from wastewater. IFAC-PapersOnLine. 6, Vol: 52, , 287-292 | doi: 10.1016/j.ifacol.2019.12.272