Commercial development of microalgal biotechnology: from the test tube to the marketplace

Olaizola, Miguel

doi:10.1016/s1389-0344(03)00076-5

Cited by 466 publications

(225 citation statements)

References 27 publications

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“…In the 60s, Oswald and Golueke (1960) demonstrated the feasibility of mitigating gas 422 effluents resulting from a power plant with a high-rate pond. Furthermore, the addition of CO 2 423 in algal ponds enhances algal growth (Olaizola, 2003;Doucha et al, 2005) provided that pH 424 is regulated. It also maintains a low pH that decreases the gaseous ammonia emission 425 (Heubeck et al, 2007).…”

Section: Codigestion 386mentioning

confidence: 99%

Anaerobic digestion of microalgae as a necessary step to make microalgal biodiesel sustainable

Sialve¹,

Bernet²,

Bernard³

2009

Biotechnology Advances

1,033

543

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Section: Codigestion 386mentioning

confidence: 99%

Anaerobic digestion of microalgae as a necessary step to make microalgal biodiesel sustainable

Sialve¹,

Bernet²,

Bernard³

2009

Biotechnology Advances

1,033

543

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“…According to aspects 2 and 3 increase of the diameter is possible only in narrow limits, usually not more than 40 mm. Tubes with much bigger diameter (440 cm) have been occasionally tried out [50] but showed only low biomass concentrations and low areal and volumetric productivities, probably because the diameter is much larger than the light path length. A recently development has been taken from the market.…”

Section: Commonly Employed Reactor Designsmentioning

confidence: 99%

Design principles of photo‐bioreactors for cultivation of microalgae

Posten

2009

Engineering in Life Sciences

682

361

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The present hype in microalgae biotechnology has shown that the topic of photobioreactors has to be revisited with respect to availability in really large scale measured in hectars footprint area, minimization of cost, auxiliary energy demand as well as maintenance and life span. This review gives an overview about present designs and the basic limiting factors which include light distribution to avoid saturation kinetics, mixing along the light gradient to make use of light/ dark cycles, aeration and mass transfer along the vertical or horizontal main axis for carbon dioxide supply and oxygen removal and last but not least the energy demand necessary to fulfil these tasks. To make comparison of the performance of different designs easier, a commented list of performance parameters is given. Based on these critical points recent developments in the areas of membranes for gas transfer and optical structures for light transfer are discussed. The fundamental starting point for the optimization of photo-bioprocesses is a detailed understanding of the interaction between the bioreactor in terms of mass and light transfer as well as the microalgae physiology in terms of light and carbon uptake kinetics and dynamics.

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“…5 Selection of cost-effective technologies for biomass harvesting and drying Given the relatively low biomass concentration obtainable in microalgal cultivation systems due to the limit of light penetration (typically in the range of 1-5 g/L) and the small size of microalgal cells (typically in the range of 2-20 lm in diameter), costs and energy consumption for biomass harvesting are a significant concern needs to be addressed properly. Different technologies, including chemical flocculation, 75 biological flocculation, 76 filtration, 77 centrifugation, 78 and ultrasonic aggregation 79 have been investigated for microalgal biomass harvesting. In general, chemical and biological flocculation require only low operating costs; however, they have the disadvantage of requiring long processing period and having the risk of bioreactive product decomposition.…”

Section: Design Of Advanced Photobioreactorsmentioning

confidence: 99%

Biofuels from Microalgae

Horsman

et al. 2008

Biotechnology Progress

953

397

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Microalgae are a diverse group of prokaryotic and eukaryotic photosynthetic microorganisms that grow rapidly due to their simple structure. They can potentially be employed for the production of biofuels in an economically effective and environmentally sustainable manner. Microalgae have been investigated for the production of a number of different biofuels including biodiesel, bio-oil, bio-syngas, and bio-hydrogen. The production of these biofuels can be coupled with flue gas CO 2 mitigation, wastewater treatment, and the production of high-value chemicals. Microalgal farming can also be carried out with seawater using marine microalgal species as the producers. Developments in microalgal cultivation and downstream processing (e.g., harvesting, drying, and thermochemical processing) are expected to further enhance the costeffectiveness of the biofuel from microalgae strategy.

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Commercial development of microalgal biotechnology: from the test tube to the marketplace

Cited by 466 publications

References 27 publications

Anaerobic digestion of microalgae as a necessary step to make microalgal biodiesel sustainable

Anaerobic digestion of microalgae as a necessary step to make microalgal biodiesel sustainable

Design principles of photo‐bioreactors for cultivation of microalgae

Biofuels from Microalgae

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