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

机译:使用在线流量控制最大化在连续光生物反应器中培养的微藻场景藻AMDD的生产率

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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.
机译:在这项研究中,使用在线流量(稀释率)控制算法最大程度地提高了300 L连续流光生物反应器中微藻Scenedesmus AMDD的产量。为了实现在线控制,可通过测量叶绿素相关的培养物荧光来实时估算生物量浓度。开发了一个简单的微藻生长模型,并将其用于解决旨在最大化光生物反应器生产率的优化问题。如果进行最佳控制,Scendesmus AMDD培养物在25天的培养期间内显示出0.11 g L-1 d(-1)的平均体积生物量生产力,与作为turbidostat的相同光生物反应器相比,性能提高了70%。所提出的用于优化光生物反应器流量的方法可以适用于多种微藻培养系统。

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