Maximizing the productivity of the microalgae Scenedesmus AMDD cultivated in a continuous photobioreactor using an online flow rate control

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1007/s00449-016-1675-9
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Name affiliation
  1. National Research Council Canada. Aquatic and Crop Resource Development
  2. National Research Council Canada. Energy, Mining and Environment
FormatText
TypeArticle
Journal titleBioprocess and Biosystems Engineering
ISSN1615-7591
1615-7605
SubjectMicroalgae; Continuous cultivation; Fluorometry; Online control; Optimal productivity
Abstract
In this study, production of the microalga Scenedesmus AMDD in a 300 L continuous flow photobioreactor was maximized using an online flow (dilution rate) control algorithm. To enable online control, biomass concentration was estimated in real time by measuring chlorophyll-related culture fluorescence. A simple microalgae growth model was developed and used to solve the optimization problem aimed at maximizing the photobioreactor productivity. When optimally controlled, Scenedesmus AMDD culture demonstrated an average volumetric biomass productivity of 0.11 g L−1 d−1 over a 25 day cultivation period, equivalent to a 70 % performance improvement compared to the same photobioreactor operated as a turbidostat. The proposed approach for optimizing photobioreactor flow can be adapted to a broad range of microalgae cultivation systems.
Publication date
PublisherSpringer Verlag
LanguageEnglish
Peer reviewedYes
NPARC number23000832
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Record created2016-10-17
Record modified2020-03-16
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