Photobioreactors for the production of microalgae

Acién, F.G.; Molina, Emilio; Reis, Alberto; Torzillo, Giuseppe; Zittelli, Graziella Chini; Sepúlveda, Claudia; Masojídek, Jiří

doi:10.1016/b978-0-08-101023-5.00001-7

Cited by 80 publications

(60 citation statements)

References 112 publications

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“…Another concept would be open pond photobioreactors like open pond raceways. Different photobioreactor setups are reviewed in [18,[36][37][38][39]. A promising alternative is an integrated algae-based biorefinery, e.g., for the production of biodiesel, astaxanthin and PHB as presented by [40] or [41].…”

Section: Phb Production By Cyanobacteria: Current State Of Knowledgementioning

confidence: 99%

Cyanobacteria for PHB Bioplastics Production: A Review

Markl¹,

Grünbichler²,

Lackner³

2019

Algae

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Cyanobacteria, or blue-green algae, can be used as host to produce polyhydroxyalkanoates (PHA), which are promising bioplastic raw materials. The most important material thereof is polyhydroxybutyrate (PHB), which can replace the commodity polymer polypropylene (PP) in many applications, yielding a bio-based, biodegradable alternative solution. The advantage from using cyanobacteria to make PHB over the standard fermentation processes, with sugar or other organic (waste) materials as feedstock, is that the sustainability is better (compare first-generation biofuels with the feed vs. fuel debate), with CO 2 being the only carbon source and sunlight being the sole energy source. In this review article, the state of the art of cyanobacterial PHB production and its outlook is discussed. Thirty-seven percent of dry cell weight of PHB could be obtained in 2018, which is getting close to up to 78% of PHB dry cell weight in heterotrophic microorganisms in fermentation reactors. A good potential for cyanobacterial PHB is seen throughout the literature.

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Section: Phb Production By Cyanobacteria: Current State Of Knowledgementioning

confidence: 99%

Cyanobacteria for PHB Bioplastics Production: A Review

Markl¹,

Grünbichler²,

Lackner³

2019

Algae

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“…The culture growth is modelled as a function of the photosynthesis rate. The main parameter that determined the photosynthesis rate is the available light, which is based on different parameters such as external irradiance, culture characteristic, and reactor design [17]. The following equation represents the available light:…”

Section: Reactor Dynamic Modelmentioning

confidence: 99%

Daytime/Nighttime Event-Based PI Control for the pH of a Microalgae Raceway Reactor

et al. 2019

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In this paper, a new solution to improve the traditional control operation of raceway microalgae reactors is presented. The control strategy is based on an event-based method that can be easily coupled to a classical time-driven proportional-integral controller, simplifying the design process approach. The results of a standard Proportional-Integral (PI) controller, as well as of two event-based architectures, are presented in simulation and compared with each other and with traditional On/Off control. It is demonstrated that the event-based PI controller—operating during the whole day instead of only during daytime—achieves a better performance by reducing the actuator effort and saving costs related to gas consumption.

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“…These can consist of glass or transparent plastic tubes, columns or panels, positioned horizontally or vertically, arranged as serpentine loops, fences, flexible coils, or as a series of panels or columns in which the microalgae suspension is continuously mixed or circulated (for a review see e.g. Tredici 2004, Carvalho et al 2006, Zittelli et al 2013, Acién et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Photosynthesis and growth kinetics of Chlorella vulgaris R-117 cultured in an internally LED‑illuminated photobioreactor

Malapascua¹,

Ranglová²,

Masojídek³

2019

Photosynt.

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The aim of this work was to correlate changes of photosynthesis activity vs. growth in Chlorella vulgaris R-117 (CCALA 1107), fast-growing and robust microalga cultured in an internally illuminated 10-L photobioreactor (PBR). The cultures were grown at high output irradiance provided by four LED light sources submerged in the culture when the light path was short, between 25-30 mm. The culture of Chlorella R-117 grown under 2,500 µmol(photon) m -2 s -1 attained a doubling time of 3.5 d and biomass density of 3.5 g(DM) L -1 after about 10-d period. When grown under 3,500 µmol(photon) m -2 s -1 , the culture reached a doubling time of 1.7 d, and biomass density of ~5.5 g L -1 before entering the stationary phase. Electron transport rate changes correlated well with the culture growth demonstrating the usefulness of chlorophyll fluorescence for photosynthesis monitoring. This can be crucial for potential scale-up to large indoor PBRs to optimise culture growth.

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Photobioreactors for the production of microalgae

Cited by 80 publications

References 112 publications

Cyanobacteria for PHB Bioplastics Production: A Review

Cyanobacteria for PHB Bioplastics Production: A Review

Daytime/Nighttime Event-Based PI Control for the pH of a Microalgae Raceway Reactor

Photosynthesis and growth kinetics of Chlorella vulgaris R-117 cultured in an internally LED‑illuminated photobioreactor

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