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Beyond batch experiments: unveiling the potential of bimetallic carbon xerogels for catalytic wet peroxide oxidation of hospital wastewater in continuous mode

2024Artigo científico Acesso aberto
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dc.contributor.authorSilva, Adriano S.
dc.contributor.authorRoman, Fernanda
dc.contributor.authorRibeiro, Rui
dc.contributor.authorGarcia, Juan
dc.contributor.authorGomes, Helder
dc.date.accessioned2024-12-20T16:36:45Z
dc.date.available2024-12-20T16:36:45Z
dc.date.issued2024
dc.description.abstractSingle- and bimetallic carbon xerogels were prepared by incorporating iron and iron-cobalt precursors during their synthesis, respectively, and tested in the catalytic wet peroxide oxidation (CWPO) of ibuprofen spiked into a simulated matrix in batch mode. The bimetallic catalyst outperformed single and non-metallic catalyst by 25 and 85% after 360 min of reaction, at mild temperature (30 °C). The best-performing catalyst was further used to treat hospital wastewater in a CWPO system operating in full continuous mode. Process optimization was carried out considering different catalyst loads, temperatures, and pH. The results obtained showed that the best conditions are initial pH 3, T = 80 °C, and a catalyst load of 35.4 mg cm− 3. Having maintained values of chemical oxygen demand (COD) removals as high as 80% after 24 h of continuous operation, the results herein reported revealed the high potential of the bimetallic carbon xerogel for CWPO of hospital wastewater beyond conventional applications in batch mode. Despite some catalytic deactivation, the bimetallic carbon xerogel still delivered a mineralization degree as high as 55% of the initial total organic carbon (TOC) content of the hospital wastewater in the third 24-h cycle of CWPO in continuous mode of operation with successive catalyst reuse, as opposed to a 73% TOC removal in the first cycle. Therefore, our results open prospects for the implementation of CWPO for hospital wastewater treatment in continuous mode of operation.pt_PT
dc.description.sponsorshipOpen access funding provided by FCT|FCCN (b-on). This work was supported by national funds through FCT/MCTES (PIDDAC): LSRE-LCM, UIDB/50020/2020 (https://doi.org/10.54499/ UIDB/50020/2020) and UIDP/50020/2020 (https://doi.org/10.54499/ UIDP/50020/2020); ALiCE, LA/P/0045/2020 (https://doi. org/10.54499/LA/P/0045/2020); CIMO, UIDB/00690/2020 (https:// doi.org/10.54499/UIDB/00690/2020) and UIDP/00690/2020 (https:// doi.org/10.54499/UIDP/00690/2020); and SusTEC, LA/P/0007/2020 (https://doi.org/10.54499/LA/P/0007/2020) and by the Spanish MICINN through the project PID2020-116478RB-I00. Fernanda F. Roman acknowledges FCT, Foundation for Science and Technology, and European Social Fund, FSE, for the individual research grant (SFRH/BD/143224/2019). Adriano Santos Silva thanks the FCT for financial support under the MIT Portugal Program with doctoral grant SFRH/BD/151346/2021. Rui S. Ribeiro acknowledges the FCT funding under Stimulus of Scientific Employment, Individual Support Call – 5th Edition, 2022.04079.CEECIND/CP1733/CT0006 (https://doi. org/10.54499/2022.04079.CEECIND/CP1733/CT0006).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSantos Silva, Adriano; Roman, Fernanda Fontana; Ribeiro, Rui Sérgio; Garcia, Juan; Gomes, Helder Teixeira (2024). Beyond batch experiments: unveiling the potential of bimetallic carbon xerogels for catalytic wet peroxide oxidation of hospital wastewater in continuous mode. Environmental Science and Pollution Research. ISSN 1614-7499. 31, p. 65208-65219pt_PT
dc.identifier.doi10.1007/s11356-024-35546-2pt_PT
dc.identifier.issn1614-7499
dc.identifier.urihttp://hdl.handle.net/10198/30785
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Naturept_PT
dc.relationLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
dc.relationLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
dc.relationALICE - Associate Laboratory in Chemical Engineering
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationSENS4Nano – Carbon modified electrochemical sensors for metal-containing engineered nanomaterials detection
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAOPspt_PT
dc.subjectFenton-likept_PT
dc.subjectProcess optimizationpt_PT
dc.subjectHospital wastewaterpt_PT
dc.subjectCarbon catalystpt_PT
dc.subjectCECspt_PT
dc.titleBeyond batch experiments: unveiling the potential of bimetallic carbon xerogels for catalytic wet peroxide oxidation of hospital wastewater in continuous modept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
oaire.awardTitleLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
oaire.awardTitleALICE - Associate Laboratory in Chemical Engineering
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleSENS4Nano – Carbon modified electrochemical sensors for metal-containing engineered nanomaterials detection
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F143224%2F2019/PT
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oaire.citation.endPage65219pt_PT
oaire.citation.startPage65208pt_PT
oaire.citation.titleEnvironmental Science and Pollution Researchpt_PT
oaire.citation.volume31pt_PT
oaire.fundingStream6817 - DCRRNI ID
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person.familyNameSilva
person.familyNameRoman
person.familyNameGomes
person.givenNameAdriano S.
person.givenNameFernanda
person.givenNameHelder
person.identifier.ciencia-id3E14-5049-B09D
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0002-6795-2335
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0001-6898-2408
project.funder.identifierhttp://doi.org/10.13039/501100001871
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