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Exploring different pretreatment methodologies for allowing microalgae growth in undiluted piggery wastewater

2022-03Journal article Open access
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dc.contributor.authorFerreira, Alice
dc.contributor.authorFigueiredo, Daniel
dc.contributor.authorCardeiras, Rodrigo
dc.contributor.authorNabais, Rui
dc.contributor.authorFerreira, Francisca
dc.contributor.authorRibeiro, Belina
dc.contributor.authorCordovil, Cláudia
dc.contributor.authorAcien, Gabriel
dc.contributor.authorGouveia, Luisa
dc.date.accessioned2022-05-16T12:07:33Z
dc.date.available2022-05-16T12:07:33Z
dc.date.issued2022-03
dc.description.abstractABSTRACT: The overapplication of manure on agricultural soils leads to nitrogen and phosphorus discharge into the aquatic environment, resulting in serious eutrophication problems and decreased water quality. Piggery wastewater (PWW) can be treated by microalgae to recycle nutrients, but the toxic levels of ammonia and organic matter hinder their growth. Fresh water is usually used to dilute PWW, but it is a scarce resource. The implementation of a pretreatment step before microalgae-based treatment could make PWW suitable for microalgae growth. Electrocoagulation, ammonia stripping, photo-Fenton, and constructed wetlands were evaluated as pretreatment methods to reduce ammonia, chemical oxygen demand (COD), color, and total suspended solids. Moreover, the pretreated PWWs were tested to grow the microalga Tetradesmus obliquus. Photo-Fenton showed the best results among the other pretreatments, achieving removal efficiencies above 90%, except for ammonia. This resulted in T. obliquus being capable of growing on undiluted PWW, even at higher ammonia levels, achieving similar biomass productivity to synthetic medium (66.4 +/- 17.8 mg.L-1.day(-1) and 60.1 +/- 10.4 mg.L-1.day(-1), respectively) almost doubling with pH control (116.5 mg.L-1.day(-1)). Thus, this pretreatment seems to be the most promising one to incorporate into microalgae-based treatment systems and must be further explored.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira, Alice... [et.al.] - Exploring different pretreatment methodologies for allowing microalgae growth in undiluted piggery wastewater. In: Agronomy, 2022, Vol. 12 (3), article nº 580pt_PT
dc.identifier.doi10.3390/agronomy12030580pt_PT
dc.identifier.eissn2073-4395
dc.identifier.urihttp://hdl.handle.net/10400.9/3854
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationALGAVALOR-Lisboa-01-0247-FEDER-035234pt_PT
dc.relationBBRI-LISBOA-01-0145-FEDER-022059pt_PT
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relation.publisherversionhttps://doi.org/10.3390/agronomy12030580pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMicroalgaept_PT
dc.subjectTetradesmus obliquuspt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectPiggery effluentpt_PT
dc.subjectAmmonia strippingpt_PT
dc.subjectElectrocoagulationpt_PT
dc.titleExploring different pretreatment methodologies for allowing microalgae growth in undiluted piggery wastewaterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.citation.issue3pt_PT
oaire.citation.titleAgronomypt_PT
oaire.citation.volume12pt_PT
person.familyNameFerreira
person.familyNameFigueiredo
person.familyNameRibeiro
person.familyNameAcien Fernandez
person.familyNameGouveia
person.givenNameAlice
person.givenNameDaniel
person.givenNameBelina
person.givenNameF. Gabriel
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-idD115-8FF3-9097
person.identifier.ciencia-id181D-2CFA-B65A
person.identifier.ciencia-idAD1A-3599-9E98
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0002-2397-3943
person.identifier.orcid0000-0003-3201-5736
person.identifier.orcid0000-0001-5145-2486
person.identifier.orcid0000-0002-8434-0365
person.identifier.orcid0000-0003-0196-6360
person.identifier.ridH-1894-2015
person.identifier.scopus-author-id55385950700
person.identifier.scopus-author-id7004135834
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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