Microalgal cultivation in closed photobioreactors: design and scale-up (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Microalgal cultivation in closed photobioreactors: design and scale-up (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Faraloni, Cecilia (1); Torzillo, Giuseppe (1) (2011)
    Microalgal cultivation in closed photobioreactors: design and scale-up
    in International Workshop on Algae Tecnology, Hydrogen Production and Use of Algae Biomass, Kolkata, India, 17-18 ottobre 2011
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Faraloni, Cecilia (1); Torzillo, Giuseppe (1) (literal)
Pagina inizio
  • 10 (literal)
Pagina fine
  • 10 (literal)
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  • International Workshop on Algae Tecnology, Hydrogen Production and Use of Algae Biomass (literal)
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  • 6 (literal)
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  • 1 (literal)
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  • 9 (literal)
Note
  • Abstract (literal)
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  • (1) CNR-ISE, Sede distaccata di Firenze (literal)
Titolo
  • Microalgal cultivation in closed photobioreactors: design and scale-up (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 978-82-17-00832-3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
  • S.A. Borgvang (literal)
Abstract
  • Although tubular reactors represent a promising technique for mass production of microalgae, information concerning large-scale unit is scanty. At the present, to the best of our knowledge, only very few industrial tubular reactors have been constructed and are in the stage of reaching a full commercial operation, Chlorella in Germany, and Heamatococcus in Hawaii and Israel. One of the main drawbacks in the use of industrial scale photobioreactors is due to the lack of a reliable systematic scale-up method. Many small-scale reactors have been proposed and operated during the last 20 years with fairly impressive productivity data. Yet, only lately initial attempts have been made that may be the first indication for a breakthrough in being able to scale up the laboratory scale prototypes to a real industrial operational system that still has to be proven to be of an economic feasibility. In general scale-up can be realized by increasing the tube length and/or the tube diameter. Simulations based on the mass transfer model indicate that increasing tube length for a constant diameter will alter the culture pH at the tube exit, and in particular the oxygen concentration in the culture, as well as the CO2 losses. The major problem is not how to develop efficient photobioreactors, in term of productivity and light utilization efficiency, but rather develop large-scale photobioreactors which are cost effective. (literal)
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