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A Combined Vermifiltration-Hydroponic System for Swine Wastewater Treatment

2021-05-30Artigo científico Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia
datacite.subject.fosCiências Naturais::Ciências Físicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosCiências Naturais::Ciências da Computação e da Informação
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorIspolnov, Kirill
dc.contributor.authorAires, Luis M. I.
dc.contributor.authorLourenço, Nídia D.
dc.contributor.authorVieira, Judite S.
dc.date.accessioned2026-03-02T15:28:29Z
dc.date.available2026-03-02T15:28:29Z
dc.date.issued2021-05-30
dc.description.abstractIntensive swine farming causes strong local environmental impacts by generating effluents rich in solids, organic matter, nitrogen, phosphorus, and pathogenic bacteria. Insufficient treatment of hog farm effluents has been reported for common technologies, and vermifiltration is considered a promising treatment alternative that, however, requires additional processes to remove nitrate and phosphorus. This work aimed to study the use of vermifiltration with a downstream hydroponic culture to treat hog farm effluents. A treatment system comprising a vermifilter and a downstream deep-water culture hydroponic unit was built. The treated effluent was reused to dilute raw wastewater. Electrical conductivity, pH, and changes in BOD5, ammonia, nitrite, nitrate, phosphorus, and coliform bacteria were assessed. Plants were monitored throughout the experiment. Electrical conductivity increased due to vermifiltration; pH stayed within a neutral to mild alkaline range. Vermifiltration removed 83% of BOD5, 99% of ammonia and nitrite, and increased nitrate by 11%. Hydroponic treatment removed BOD5 (63%), ammonia (100%), nitrite (66%), nitrate (27%), and phosphorus (47% total and 44% dissolved) from vermifiltered water. Coliforms were reduced by vermifiltration but recovered in the hydroponic unit. Plants showed the ability to grow on vermi-filtered wastewater, although requiring nutrient supplementation. Vermifiltration combined with hydroponics is a promising treatment for swine wastewater, although optimization will be needed for a sustainable real-scale implementation.eng
dc.description.sponsorshipThis work was supported by Base Funding—UIDB/50020/2020 of the Associate Laboratory LSRE-LCM, funded by national funds through FCT/MCTES (PIDDAC), and by the Applied Molecular Biosciences Unit—UCIBIO, which is financed by national funds from FCT (UIDP/04378/2020 and UIDB/04378/2020).
dc.identifier.citationIspolnov, K.; Aires, L.M.I.; Lourenço, N.D.; Vieira, J.S. A Combined Vermifiltration-Hydroponic Systemfor SwineWastewater Treatment. Appl. Sci. 2021, 11, 5064. https://doi.org/10.3390/app11115064.
dc.identifier.doi10.3390/app11115064
dc.identifier.eissn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.8/15754
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationApplied Molecular Biosciences Unit
dc.relationApplied Molecular Biosciences Unit
dc.relation.hasversionhttps://www.mdpi.com/2076-3417/11/11/5064
dc.relation.ispartofApplied Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjecthog farm wastewater
dc.subjectvermifilter
dc.subjecthydroponic cultures
dc.titleA Combined Vermifiltration-Hydroponic System for Swine Wastewater Treatmenteng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDP/04378/2020
oaire.awardNumberUIDB/04378/2020
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04378%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04378%2F2020/PT
oaire.citation.endPage15
oaire.citation.issue11
oaire.citation.startPage1
oaire.citation.titleApplied Sciences (Switzerland)
oaire.citation.volume11
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameIspolnov
person.familyNameIgreja Aires
person.familyNameVieira
person.givenNameKirill
person.givenNameLuis Miguel
person.givenNameJudite
person.identifier.ciencia-id3015-DED5-A6B5
person.identifier.ciencia-id6C18-E6C2-F582
person.identifier.ciencia-idEA1B-12E3-7703
person.identifier.gsidhttps://scholar.google.com.br/citations?hl=pt-PT&user=7Wv10lIAAAAJ
person.identifier.gsidhttps://scholar.google.com.br/citations?hl=pt-PT&user=7Wv10lIAAAAJ
person.identifier.orcid0000-0003-0928-6714
person.identifier.orcid0000-0003-2052-6045
person.identifier.orcid0000-0001-7982-5686
person.identifier.ridH-5018-2017
person.identifier.scopus-author-id23977995300
person.identifier.scopus-author-id16027706000
person.identifier.scopus-author-id36869854300
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
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Intensive swine farming causes strong local environmental impacts by generating effluents rich in solids, organic matter, nitrogen, phosphorus, and pathogenic bacteria. Insufficient treatment of hog farm effluents has been reported for common technologies, and vermifiltration is considered a promising treatment alternative that, however, requires additional processes to remove nitrate and phosphorus. This work aimed to study the use of vermifiltration with a downstream hydroponic culture to treat hog farm effluents. A treatment system comprising a vermifilter and a downstream deep-water culture hydroponic unit was built. The treated effluent was reused to dilute raw wastewater. Electrical conductivity, pH, and changes in BOD5, ammonia, nitrite, nitrate, phosphorus, and coliform bacteria were assessed. Plants were monitored throughout the experiment. Electrical conductivity increased due to vermifiltration; pH stayed within a neutral to mild alkaline range. Vermifiltration removed 83% of BOD5, 99% of ammonia and nitrite, and increased nitrate by 11%. Hydroponic treatment removed BOD5 (63%), ammonia (100%), nitrite (66%), nitrate (27%), and phosphorus (47% total and 44% dissolved) from vermifiltered water. Coliforms were reduced by vermifiltration but recovered in the hydroponic unit. Plants showed the ability to grow on vermi-filtered wastewater, although requiring nutrient supplementation. Vermifiltration combined with hydroponics is a promising treatment for swine wastewater, although optimization will be needed for a sustainable real-scale implementation.
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LSRE-LCM - Artigos em Revistas Nacionais e de Circulação Internacional
ESTG - Artigos em revistas internacionais