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Microalgae-bacterial biomass outperforms PN-anammox biomass for oxygen saving in continuous-flow granular reactors facing extremely low-strength freshwater aquaculture streams

2022Journal article Open access
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dc.contributor.authorSantorio, Sergio
dc.contributor.authorRio, Angeles Val del
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorCouto, Ana T.
dc.contributor.authorArregui, Luz
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorMosquera-Corral, Anuska
dc.date.accessioned2022-09-23T09:54:48Z
dc.date.available2022-09-23T09:54:48Z
dc.date.issued2022
dc.description.abstractThe dissolved oxygen (DO) concentration in water streams is one of the most important and critical quality parameters in aquaculture farms. The main objective of this study was to evaluate the potential of two Continuous Flow Granular Reactors, one based on Partial Nitrification-Anammox biomass (Aquammox CFGR) and the other on Microalgae-Bacteria biomass (AquaMab CFGR), for improving dissolved oxygen availability in the recirculation aquaculture systems (RAS). Both reactors treated the extremely low-strength effluents from a freshwater trout farm (1.39 mg NH4 +-N/L and 7.7 mg TOC/L). The Aquammox CFGR, removed up to 68% and 100% of ammonium and nitrite, respectively, but the DO concentration in the effluent was below 1 mg O2/L while the anammox activity was not maintained. In the AquaMab CFGR, bioaugmentation of aerobic granules with microalgae was attained, producing an effluent with DO concentrations up to 9 mg O2/L and removed up to 77% and 80% of ammonium and nitrite, respectively, which is expected to reduce the aeration costs in fish farms.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.chemosphere.2022.136184pt_PT
dc.identifier.eid85138772635
dc.identifier.issn0045-6535
dc.identifier.pmid36030947
dc.identifier.urihttp://hdl.handle.net/10400.14/38986
dc.identifier.wos000870334100008
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAquaculture effluentspt_PT
dc.subjectContinuous-flow reactorspt_PT
dc.subjectExtremely low-strength wastewaterpt_PT
dc.subjectWater recyclingpt_PT
dc.subjectGranular sludgept_PT
dc.subjectMicroalgae-bacteria consortiumpt_PT
dc.subjectPN-anammoxpt_PT
dc.titleMicroalgae-bacterial biomass outperforms PN-anammox biomass for oxygen saving in continuous-flow granular reactors facing extremely low-strength freshwater aquaculture streamspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue2pt_PT
oaire.citation.titleChemospherept_PT
oaire.citation.volume308pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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