Development of thin-layer cascades for microalgae cultivation: milestones (review)
Autor: | Gergely Lakatos, João Artur Câmara Manoel, Jiří Masojídek, Karolína Ranglová, Tomáš Grivalský, Richard Lhotský |
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Rok vydání: | 2019 |
Předmět: |
0303 health sciences
Light 030306 microbiology Thin layer Environmental engineering Irradiance Biomass General Medicine History 20th Century Microbiology First generation 03 medical and health sciences Bioreactors Productivity (ecology) Microalgae Environmental science Microalgae growth Raceway Biotechnology 030304 developmental biology |
Zdroj: | Folia Microbiologica |
ISSN: | 1874-9356 0015-5632 |
Popis: | In this work, the key moments of the development of the so-called thin-layer cascades (TLC) for microalgae production are described. Development started at the end of the 1950s when the first generation of TLCs was set-up in former Czechoslovakia. Since, similar units for microalgae culturing, which are relatively simple, low-cost and highly productive, have been installed in a number of other countries worldwide. The TLCs are characterized by microalgae growth at a low depth ( 100 1/m) and rapid light/dark cycling frequencies of cells which result in high biomass productivity (> 30 g/m2/day) and operating at high biomass density, > 10 g/L of dry mass (DW). In TLCs, microalgae culture is grown in the system of inclined platforms that combine the advantages of open systems—direct sun irradiance, easy heat derivation, simple cleaning and maintenance, and efficient degassing—with positive features of closed systems—operation at high biomass densities achieving high volumetric productivity. Among significant advantages of thin layer cascades compared to raceway ponds are the operation at much higher cell densities, very high daylight productivities, and the possibility to store the culture in retention tanks at night, or in unfavourable weather conditions. Concerning the limitations of TLCs, one has to consider contaminations by other microalgae that limit cultivation to robust, fast-growing strains, or those cultured in selective environments. |
Databáze: | OpenAIRE |
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