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Microalgal production--a close look at the economics.

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Published:20th Aug 2010
Author: Norsker NH, Barbosa MJ, Vermuë MH, Wijffels RH.
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Ref.:Biotechnol Adv. 2011 Jan-Feb;29(1):24-7.
DOI:10.1016/j.biotechadv.2010.08.005.

ABSTRACT: Worldwide, microalgal biofuel production is being investigated. It is strongly debated which type of production technology is the most adequate. Microalgal biomass production costs were calculated for 3 different micro algal production systems operating at commercial scale today: open ponds, horizontal tubular photobioreactors and flat panel photobioreactors. For the 3 systems, resulting biomass production costs including dewatering, were 4.95, 4.15 and 5.96 € per kg, respectively. The important cost factors are irradiation conditions, mixing, photosynthetic efficiency of systems, medium- and carbon dioxide costs. Optimizing production with respect to these factors, a price of € 0.68 per kg resulted. At this cost level microalgae become a promising feedstock for biodiesel and bulk chemicals.

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