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Title

Assessment of the CO2 fixation capacity of Anabaena sp. ATCC 33047 outdoor cultures in vertical flat-panel reactors

AuthorsClares, Marta E.; Moreno, José; Guerrero, Miguel G.; García-González, Mercedes
KeywordsAnabaena
CO2 fixation
Continuous culture
Outdoor culture
Flat panel reactor
Issue Date2014
PublisherElsevier
CitationJournal of Biotechnology 187: 51- 55 (2014)
AbstractThe extent of biological CO2 fixation was evaluated for outdoor cultures of the cyanobacterium Anabaena sp. ATCC 33047. Culture conditions were optimized indoors in bubble-column photochemostats operating in continuous mode, subjected to irradiance cycles mimicking the light regime outdoors. Highest values achieved for CO2 fixation rate and biomass productivity were 1 and 0.6gL-1day-1, respectively. The comparison among different reactors operating simultaneously - open pond, horizontal tubular reactor and vertical flat-panel - allowed to assess their relative efficiency for the outdoor development of Anabaena cultures. Despite the higher volumetric CO2 fixation capacity (and biomass productivity) exhibited by the tubular photobioreactor, yield of the flat-panel reactor was 50% higher than that of the tubular option on a per area basis, reaching values over 35g CO2 fixed m-2d-1. The flat-panel reactor actually represents a most suitable system for CO2 capture coupled to the generation of valuable biomass by Anabaena cultures
Publisher version (URL)http://dx.doi.org/10.1016/j.jbiotec.2014.07.014
URIhttp://hdl.handle.net/10261/101755
DOI10.1016/j.jbiotec.2014.07.014
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