Publication
Carbon catalysts derived from compost for wet peroxide oxidation of landfill leachates
| dc.contributor.author | Batista, Gabriel de Freitas | |
| dc.contributor.author | Roman, Fernanda | |
| dc.contributor.author | Díaz de Tuesta, Jose Luis | |
| dc.contributor.author | Silva, Adrián | |
| dc.contributor.author | Gomes, Helder | |
| dc.date.accessioned | 2023-02-09T14:40:17Z | |
| dc.date.available | 2023-02-09T14:40:17Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | O constante crescimento populacional levou a um grande aumento na produção de resíduos sólidos, principalmente resíduos sólidos urbanos (RSU). Uma estratégia ecologicamente correta para gerenciar os RSU é o tratamento mecânico e biológico (TMB). Nas unidades TMB, a fração orgânica dos RSU é tratada, gerando biogás e subprodutos (lixiviado e composto). O composto é ultilizado principalmente como fertilizante agrícola. No entanto, a quantidade de composto produzida é superior à sua procura como fertilizante, criando um excesso de produto. Este trabalho visa a valorização do composto através de carbonização hidrotérmica (CHT), e pirólise, produzindo os catalisadores HC230 e PC800, respectivamente, e sua aplicação na oxidação catalítica com peróxido de hidrogénio (CWPO) do lixiviado gerado na unidade TMB. Os catalisadores foram caracterizados por análise elementar e teor de cinzas. Os ensaios de CWPO do lixiviado (COT = 27 g L-1, DQO = 60 g L-1 e DBO5 = 23 g L-1) foram conduzidos nas seguintes condições operacionais: CCatalisador = 1,8 g L-1; T = 80 ºC; CH2O2 = 85,7 g L-1 e pH de 3,0 a 7,3. A pH = 6, o catalisador HC230 permitiu alcançar uma redução de DQO de 41%, aumentar a razão DBO5/DQO para 0,42, moldando o lixiviado como adequado para tratamento biológico posterior | pt_PT |
| dc.description.abstract | The population growth leads to a large increase in solid waste production, notably municipal solid waste (MSW). In this context, the mechanical and biological treatment (MBT) arouses as an environmentally friendly strategy to manage MSW. In MBT plants, the organic fraction of MSW is treated, generating biogas and, as by-products, leachate and compost. The compost is mainly used as an agriculture fertilizer. However, the amount of compost produced is higher than its demand, resulting in excess and accumulation. This work deals with the valorization of compost through hydrothermal carbonization (HTC) and pyrolysis, producing respectively the catalysts HC230 and PC800, and their application in the catalytic wet peroxide oxidation (CWPO) of the leachate waters generated in the MBT plant. The catalysts were characterized by elemental analysis and ash content. The CWPO runs of the leachate waters (TOC = 27 g L-1, COD = 60 g L-1 and BOD5 = 23 g L-1) were conducted under the following operating conditions: CCatalyst = 1.8 g L-1; T = 80 ºC; CH2O2 = 85.7 g L-1 and pH from 3.0 to 7.3. At pH = 6 the HC230 achieved a COD abatement of 41 %, enhancing the BOD5/COD ratio to 0.42, shaping the leachate as suitable for further biological treatment | pt_PT |
| dc.description.sponsorship | This 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.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Batista, Gabriel de Freitas; Roman, Fernanda; Díaz de Tuesta, Jose Luis; Silva, Adrián; Gomes, Helder (2022). Carbon catalysts derived from compost for wet peroxide oxidation of landfill leachates. In XXVIII Congresso Ibero-Americano de Catálise. Natal: Sociedade Brasileira de Catálise. p. 1-6. ISBN 978-989-8124-23-4 | pt_PT |
| dc.identifier.isbn | 978-989-8124-23-4 | |
| dc.identifier.uri | http://hdl.handle.net/10198/26860 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Sociedade Brasileira de Catálise | pt_PT |
| dc.relation | Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials | |
| dc.relation | Mountain Research Center | |
| dc.relation | Amphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Resíduos sólidos urbanos | pt_PT |
| dc.subject | Valorização | pt_PT |
| dc.subject | Catalisadores à base de carbono águas lixiviantes | pt_PT |
| dc.subject | Tratamento de águas residuais | pt_PT |
| dc.subject | Research Subject Categories::NATURAL SCIENCES::Chemistry | pt_PT |
| dc.title | Carbon catalysts derived from compost for wet peroxide oxidation of landfill leachates | pt_PT |
| dc.type | conference paper | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials | |
| oaire.awardTitle | Mountain Research Center | |
| oaire.awardTitle | Amphiphilic carbon-based materials for one-pot desulfurization and denitrogenation of liquid fuels | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F143224%2F2019/PT | |
| oaire.citation.conferencePlace | Natal | pt_PT |
| oaire.citation.endPage | 6 | pt_PT |
| oaire.citation.startPage | 1 | pt_PT |
| oaire.citation.title | XXVIII Congresso Ibero-Americano de Catálise | pt_PT |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | POR_NORTE | |
| person.familyName | Batista | |
| person.familyName | Roman | |
| person.familyName | Díaz de Tuesta | |
| person.familyName | Gomes | |
| person.givenName | Gabriel De Freitas | |
| person.givenName | Fernanda | |
| person.givenName | Jose Luis | |
| person.givenName | Helder | |
| person.identifier.ciencia-id | 4716-515C-D71A | |
| person.identifier.ciencia-id | EE1B-DAA7-D0BD | |
| person.identifier.ciencia-id | 7A1F-022B-7DBF | |
| person.identifier.ciencia-id | 6218-1E19-13EE | |
| person.identifier.orcid | 0000-0002-9195-4330 | |
| person.identifier.orcid | 0000-0001-5360-5298 | |
| person.identifier.orcid | 0000-0003-2408-087X | |
| person.identifier.orcid | 0000-0001-6898-2408 | |
| person.identifier.rid | D-9785-2017 | |
| person.identifier.scopus-author-id | 55755821600 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
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