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Hydrochars from compost derived from municipal solid waste: production process optimization and catalytic applications

2021Journal article Restricted access
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dc.contributor.authorRoman, Fernanda
dc.contributor.authorDíaz de Tuesta, Jose Luis
dc.contributor.authorPraça, Paulo
dc.contributor.authorSilva, Adrián
dc.contributor.authorFaria, Joaquim
dc.contributor.authorGomes, Helder
dc.date.accessioned2021-03-16T15:26:39Z
dc.date.available2021-03-16T15:26:39Z
dc.date.issued2021
dc.description.abstractCatalytic hydrochars were produced by hydrothermal carbonization (HTC) of compost derived from Municipal Solid Waste (MSW). The HTC process was studied through a Design of Experiments to assess the influence of the variables: (i) time (1–5 h), (ii) load of compost (1–4 g in 30 mL) and, (iii) temperature (150–230 ◦C). Total organic carbon (TOC), conductivity and volume variation of the liquid fraction, as well as the mass and carbon content of the solid fraction (hydrochars), were the evaluated responses. Reliable models (R2 > 0.95 and p-values < 0.05) were fitted to the responses, and the load of compost was found as the most significant variable influencing the process. The Fenton reaction was proposed as an effective treatment of the liquid fraction generated from HTC of compost. A TOC abatement of 73% was obtained after 24 h of reaction under the studied operating conditions (80 ◦C, initial pH 3.0, 100 mg L􀀀 1 Fe+2 and two times the stoichiometric amount of H2O2 needed for the complete mineralization of the TOC present in the liquid fraction). The hydrochars produced show high catalytic activity in the decomposition of H2O2, a reaction of interest in a variety of chemical processes, 100% of H2O2 degradation being obtained after 6 h of reaction.pt_PT
dc.description.sponsorshipThis work was financially supported by project “VALORCOMP - Valorizaci´on de compost y otros desechos procedentes de la fracci´on org´anica 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, 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.citationRoman, Fernanda Fontana; Díaz de Tuesta, Jose Luis; Praça, Paulo; Silva, Adrián; Faria, Joaquim; Gomes, Helder (2021). Hydrochars from compost derived from municipal solid waste: production process optimization and catalytic applications. Journal of Environmental Chemical Engineering. ISSN 2213-3437. 9:1, p. 1-9pt_PT
dc.identifier.doi10.1016/j.jece.2020.104888pt_PT
dc.identifier.issn2213-3437
dc.identifier.urihttp://hdl.handle.net/10198/23478
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectCarbon-based materialspt_PT
dc.subjectHydrocharspt_PT
dc.subjectDoehlert matrixpt_PT
dc.subjectWaste managementpt_PT
dc.subjectCatalysispt_PT
dc.titleHydrochars from compost derived from municipal solid waste: production process optimization and catalytic applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.startPage104888pt_PT
oaire.citation.titleJournal of Environmental Chemical Engineeringpt_PT
oaire.citation.volume9pt_PT
person.familyNameRoman
person.familyNameDíaz de Tuesta
person.familyNameGomes
person.givenNameFernanda
person.givenNameJose Luis
person.givenNameHelder
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id7A1F-022B-7DBF
person.identifier.ciencia-id6218-1E19-13EE
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
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc145030b-c811-4be4-b6af-1926e364cb33
relation.isAuthorOfPublication2ad0465f-5f8a-4b14-90f5-bf85996f9ce1
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery0eb96337-224a-4339-9918-334436fbbb99

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