Scale-Up a Fibonacci-type photobioreactor for the production of Dunaliella salina
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2020-09-22Abstract
In this work, the previously proposed Fibonacci-type photobioreactor is scaled up and evaluated
to produce Dunaliella salina. First, the composition of the culture medium
was optimized to achieve maximal productivity. Next, the Fibonacci-type reactor was scaled up to
1,250 L maintaining high solar radiation interception capacity of this type of reactor. Finally, the
performance of the reactor for the production of green cells of Dunaliella salina at the
environmental conditions prevailing in the Atacama Desert was evaluated. Data demonstrated
that the proposed photobioreactor allows the temperature, pH and dissolved oxygen
concentration to be maintained within the optimal ranges recommended for the selected strain.
Both better exposure to solar radiation and photonic flow dilution avoids the use of a cooling
systems to prevent overheating under outdoor conditions. The system allows up to 60% more
solar radiation to be intercepted than does the horizontal surface. Likewise, al...