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Nannochloropsis oceanica cultivation in pilot-scale raceway ponds—from design to cultivation

2020Journal article Open access
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dc.contributor.authorCunha, Pedro
dc.contributor.authorPereira, Hugo
dc.contributor.authorCosta, Margarida
dc.contributor.authorPereira, João
dc.contributor.authorSilva, Joana T.
dc.contributor.authorFernandes, Nuno
dc.contributor.authorVarela, João
dc.contributor.authorSilva, Joana
dc.contributor.authorSimões, Manuel
dc.date.accessioned2020-04-30T10:27:20Z
dc.date.available2020-04-30T10:27:20Z
dc.date.issued2020
dc.description.abstractRaceways ponds are the microalgal production systems most commonly used at industrial scale. In this work, two di erent raceway configurations were tested under the same processing conditions to compare their performance on the production of Nannochloropsis oceanica. Biomass productivity, biochemical composition of the produced biomass, and power requirements to operate those reactors were evaluated. Water depths of 0.20 and 0.13 m, and culture circulation velocities of 0.30 and 0.15 m s􀀀1 were tested. A standard configuration, which had a full channel width paddlewheel, proved to be the most energy e cient, consuming less than half of the energy required by a modified configuration (had a half channel width paddlewheel). The later showed to have slightly higher productivity, not enough to o set the large di erence in energetic consumption. Higher flow velocity (0.30 m s􀀀1) led to a 1.7 g m􀀀2 d􀀀1 improvement of biomass productivity of the system, but it increased the energy consumption twice as compared to the 0.15 m s􀀀1 flow velocity. The latter velocity showed to be the most productive in lipids. A water depth of 0.20 m was the most suitable option tested to cultivate microalgae, since it allowed a 54% energy saving. Therefore, a standard raceway pond using a flow velocity of 0.3 m s􀀀1 with a 0.20 m water depth was the most e cient system for microalgal cultivation. Conversely, a flow velocity of 0.15 m s􀀀1 was the most suitable to produce lipids.pt_PT
dc.description.sponsorshipPortugal 2020 Program (POCI-01-0247-FEDER-035234; LISBOA-01-0247-FEDER-035234; ALG-01-0247-FEDER-035234)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/app10051725pt_PT
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.1/13812
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRaceway pond configurationpt_PT
dc.subjectNannochloropsis oceanicapt_PT
dc.subjectBiomass productivitypt_PT
dc.subjectEnergy costspt_PT
dc.titleNannochloropsis oceanica cultivation in pilot-scale raceway ponds—from design to cultivationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue5pt_PT
oaire.citation.startPage1725pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume10pt_PT
person.familyNamePereira
person.familyNameVarela
person.givenNameHugo
person.givenNameJoão
person.identifier282781
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.orcid0000-0002-1369-2099
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridE-9360-2015
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id55741416000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationebcb2180-5235-4502-b562-cd1e7786e6f9
relation.isAuthorOfPublicationd339a9e7-bc32-49c4-ba48-a17343d40092
relation.isAuthorOfPublication.latestForDiscoveryebcb2180-5235-4502-b562-cd1e7786e6f9

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