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Assessment of pretreatments for highly concentrated leachate waters to enhance the performance of catalytic wet peroxide oxidation with sustainable low-cost catalysts

2022Journal article Open access
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dc.contributor.authorBatista, Gabriel de Freitas
dc.contributor.authorRoman, Fernanda
dc.contributor.authorDíaz de Tuesta, Jose Luis
dc.contributor.authorMambrini, Raquel Vieira
dc.contributor.authorPraça, Paulo
dc.contributor.authorGomes, Helder
dc.date.accessioned2022-02-28T09:37:10Z
dc.date.available2022-02-28T09:37:10Z
dc.date.issued2022
dc.description.abstractMatured compost, derived from a mechanical and biological treatment (MBT) plant, was used as a precursor to produce catalysts through hydrothermal and thermal carbonization, HC and PC, respectively. HC and PC displayed suitable properties to act as catalysts in the catalytic wet peroxide oxidation (CWPO) treatment of the highly polluted leachate waters generated in the same MBT plant (TOC0 = 27 g L-1; COD0 = 60 g L-1; BOD5,0 = 23 g L-1). The influence of catalyst loading and pH were studied, considering multiple additions of H2O2. The best experimental conditions found were T = 80º C, pH0 = 3.0, 7.2 g L-1 of HC catalyst, 85.7 g L-1 of H2O2, added in five batches in one-hour intervals between each addition. Under these experimental conditions, removals of 43%, 52%, 93%, 82%, 35%, 95% and 93% for the COD, TOC, BOD5, aromaticity, chlorides, turbidity and color number (CN) were, respectively, observed. Ion exchange resins and coagulation–flocculation were studied as pretreatment options to reduce the complexity of the leachate waters and enhance the CWPO results. Both strategies resulted in higher mineralization and enhanced the consumption efficiency of H2O2 (H2O2 ). The sequential treatment using coagulation–flocculation and CWPO with PC catalyst showed the best results, achieving abatement of 94%, 70%, 98%, 93%, 31%, 96% and 95% for COD, TOC, BOD5, aromaticity, chlorides, turbidity and CN, respectively.pt_PT
dc.description.sponsorshipThis work was financially supported by project “VALORCOMP-Valorización de compost y otros desechos procedentes de la fracción orgánica de los residuos municipales”, with reference 0119_VALORCOMP_2_P, through FEDER under Program INTERREG; Base Funding- UIDB/50020/2020 of the Associate Laboratory LSRE-LCM-funded by national funds through FCT/MCTES (PIDDAC); CIMO (UIDB/00690/2020) through FEDER under Program PT2020 and national funding by FCT, Foundation for Science and Technology and European Social Fund, FSE, through the individual research grant SFRH/BD/143224/2019 of Fernanda Fontana Roman.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBatista, Gabriel de Freitas; Roman, Fernanda F.; Diaz de Tuesta, Jose L.; Mambrini, Raquel Vieira; Praça, Paulo; Gomes, Helder (2022). Assessment of pretreatments for highly concentrated leachate waters to enhance the performance of catalytic wet peroxide oxidation with sustainable low-cost catalysts. Catalysts. ISSN 2073-4344. 12:2, p. 1-17pt_PT
dc.identifier.doi10.3390/catal12020238pt_PT
dc.identifier.issn2073-4344
dc.identifier.urihttp://hdl.handle.net/10198/25119
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
dc.relationMountain Research Center
dc.relationAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleAssessment of pretreatments for highly concentrated leachate waters to enhance the performance of catalytic wet peroxide oxidation with sustainable low-cost catalystspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
oaire.awardTitleMountain Research Center
oaire.awardTitleAmphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F143224%2F2019/PT
oaire.citation.issue2pt_PT
oaire.citation.startPage238pt_PT
oaire.citation.titleCatalystspt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
person.familyNameBatista
person.familyNameRoman
person.familyNameDíaz de Tuesta
person.familyNameGomes
person.givenNameGabriel De Freitas
person.givenNameFernanda
person.givenNameJose Luis
person.givenNameHelder
person.identifier.ciencia-id4716-515C-D71A
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id7A1F-022B-7DBF
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0002-9195-4330
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0003-2408-087X
person.identifier.orcid0000-0001-6898-2408
person.identifier.ridD-9785-2017
person.identifier.scopus-author-id55755821600
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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