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Evaluation of microalgae as bioremediation agent for poultry effluent and biostimulant for germination

2021-11Journal article Open access
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dc.contributor.authorViegas, Catarina
dc.contributor.authorGouveia, Luisa
dc.contributor.authorGonçalves, Margarida
dc.date.accessioned2021-12-09T17:49:56Z
dc.date.available2021-12-09T17:49:56Z
dc.date.issued2021-11
dc.description.abstractThis work addresses how a pre-treatment involving biomass ash influences the poultry effluent’s bioremediation using three microalga strains, such as Chlorella vulgaris, Chlorella protothecoides and Tetradesmus obliquus. The undiluted effluent served as the culture medium for the growth, both in batch and semi continuous modes, and the remediation efficiency and biomass production yield were quantified. The combination strategy in batch mode, allowed removal efficiency of 100% for total nitrogen, more than 80% for total phosphorus and over 70% for chemical oxygen demand. Average biomass productivities for 10 days of 94.9, 76.2 and 72.0 mg L−1 day−1 were obtained for T. obliquus, C. vulgaris and C. protothecoides, respectively. Regarding semi-continuous strategy (28 days), the biomass productivities achieved were 245 and 194 mg L−1 day−1 for T. obliquus and C. vulgaris, respectively. Remediation rates of 100% for total nitrogen and phosphorus, and over 92% for COD were attained. The microalga composition was assessed for protein, sugar, lipid, and ash contents. The produced biomasses were tested as biostimulant and showed a 147% increase in wheat germination index, for the C. vulgaris microalga. The use of the precipitate from the biomass ash pre-treatment as fertilizer in germination tests was also assessed and results in an increase of 26%, for 10% of precipitate incorporation.pt_PT
dc.description.sponsorshipLisboa-01-0247-FEDER-035234; P319RT0025
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.eti.2021.102048pt_PT
dc.identifier.issn2352-1864
dc.identifier.urihttp://hdl.handle.net/10400.1/17367
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationBiorremediação de efluentes agroindustriais por microalgas e valorização da biomassa algal numa economia circular
dc.relationMechanical Engineering and Resource Sustainability Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectSlaughterhouse effluentpt_PT
dc.subjectPoultry effluentpt_PT
dc.subjectBiomass ash pre-treatmentpt_PT
dc.subjectMicroalgae-based bioremediationpt_PT
dc.titleEvaluation of microalgae as bioremediation agent for poultry effluent and biostimulant for germinationpt_PT
dc.title.alternativeAvaliação de microalgas como agente de bioremediação para efluentes avícolas e bioestimulantes para germinaçãopt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiorremediação de efluentes agroindustriais por microalgas e valorização da biomassa algal numa economia circular
oaire.awardTitleMechanical Engineering and Resource Sustainability Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F131178%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04077%2F2020/PT
oaire.citation.startPage102048pt_PT
oaire.citation.titleEnvironmental Technology & Innovationpt_PT
oaire.citation.volume24pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameGouveia
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0003-0196-6360
person.identifier.scopus-author-id7004135834
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryf559d57b-b659-4d65-bf6c-698bf99e729b
relation.isProjectOfPublication48bae193-25e7-45e3-bc63-daf517f4a709
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