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Modeling and optimization of atmospheric CO2 capture for neutralization of high alkaline wastewaters using response surface methodology

2024-03Artigo científico Acesso aberto
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datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorMadeira, Luís Miguel Simão
dc.contributor.authorRibau Teixeira, Margarida
dc.contributor.authorCarvalho, Fátima
dc.date.accessioned2026-04-22T12:36:29Z
dc.date.available2026-04-22T12:36:29Z
dc.date.issued2024-03
dc.description.abstractLab-scale stirrer bubble and lab-scale stepped continuous flow capillary columns were developed to neutralize lime precipitation treated slaughterhouse wastewater (SWW) and recover the volatilized ammonia, using atmospheric CO2. These experiments were carried out using central composite design based on the response surface methodology. The carbonation process occurred in both processes. For the bubbling process, numerical optimization indicated a final pH of 8 with calcium and ammonium nitrogen removals of 76.0 and 66.2%, respectively, applying 21 h, air flow rate at 65 L h− 1, the stirring speed at 52 rpm, and SWW volume at 178 mL. It was also observed that increasing the air flow rate can avoid the stirring step. For the capillary process, a pH of 8.2 and calcium and ammonium nitrogen removals of 81.0 and 57.5% were achieved, applying a SWW flow rate at 1.2 mL min− 1, air flow rate at 90 L h− 1, and capillary area at 700 cm2. Under optimal conditions, the flow capillary column was able to neutralize different SWW volumes, 178–478 mL, without significant differences in the collected samples, with the operation time varying between 4.48 and 10.20 h, respectively.eng
dc.identifier.doi10.1016/j.jcou.2024.102705
dc.identifier.issn2212-9820
dc.identifier.urihttp://hdl.handle.net/10400.1/28743
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationVALORTECWATER - Valorization of slaughterhouse wastewater for the plant production using different eco-innovative technologies.
dc.relation.ispartofJournal of CO2 Utilization
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAtmospheric CO2 capture
dc.subjectAlkaline wastewater
dc.subjectCapillary action
dc.subjectStirrer bubble column
dc.subjectSlaughterhouse
dc.titleModeling and optimization of atmospheric CO2 capture for neutralization of high alkaline wastewaters using response surface methodologyeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberSFRH/BD/137209/2018
oaire.awardTitleVALORTECWATER - Valorization of slaughterhouse wastewater for the plant production using different eco-innovative technologies.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F137209%2F2018/PT
oaire.citation.startPage102705
oaire.citation.titleJournal of CO2 Utilization
oaire.citation.volume81
oaire.fundingStreamOE
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMadeira
person.familyNameRibau Teixeira
person.givenNameLuís Miguel Simão
person.givenNameMargarida
person.identifier.ciencia-idA214-0A87-64EC
person.identifier.ciencia-id9111-87FB-26AA
person.identifier.orcid0000-0001-7674-8881
person.identifier.orcid0000-0002-2153-3282
person.identifier.ridB-9012-2012
person.identifier.scopus-author-id55760206500
person.identifier.scopus-author-id8988625600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication8cd36da9-81c2-4d06-ba84-bdcc2a5a6925
relation.isAuthorOfPublicationadfcbe65-54a7-4cce-b874-bb8e2bdc6167
relation.isAuthorOfPublication.latestForDiscovery8cd36da9-81c2-4d06-ba84-bdcc2a5a6925
relation.isProjectOfPublication0b416b15-98c3-4304-af29-2ef7bce67641
relation.isProjectOfPublication.latestForDiscovery0b416b15-98c3-4304-af29-2ef7bce67641

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