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Activated carbons from the co-pyrolysis of rice wastes for Cr(III) removal

dc.contributor.authorDias, Diogo
dc.contributor.authorBernardo, Maria
dc.contributor.authorLapa, Nuno
dc.contributor.authorPinto, Filomena
dc.contributor.authorMatos, Inês
dc.contributor.authorFonseca, Isabel Maria
dc.date.accessioned2018-10-22T10:22:12Z
dc.date.available2018-10-22T10:22:12Z
dc.date.issued2018
dc.description.abstractABSTRACT: Rice husk and polyethylene were mixed (50 % w/w each) and submitted to a pyrolysis assay. Four physical activations with CO2 were performed on the resulting co-pyrolysis char (PC). The activation at 800 °C, for 4h, generated the activated carbon (PAC3) with the best textural properties. PC, PAC3 and a commercial activated carbon (CAC) were characterized and submitted to Cr(III) removal assays. PC had a high percentage of volatile matter that was removed after the physical activation, resulting in more available pores in the final material (PAC). In the Cr(III) removal assays, two S/L ratios were tested: 5 and 10 g L-1. PC did not remove any Cr(III) from the solutions, but PAC presented similar results to CAC. At the S/L of 5 g L-1, Cr(III) removal was of 58.5 % for PAC and 62.5 % for CAC, both by adsorption mechanism; at the S/L of 10 g L-1, Cr(III) removal was almost complete due to precipitation caused by pH increase. The highest uptake capacities were of 7.92 mg g-1 for PAC and 8.71 mg g-1 for CAC, at the S/L of 5 g L-1. The results indicated that PAC3 may be a viable alternative to CAC on Cr(III) removal from aqueous media.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDias, D.; Bernardo, M.; Lapa, N...[et.al.]. - Activated carbons from the co-pyrolysis of rice wastes for Cr(III) removal. In: Chemical Engineering Transactions, 2018, Vol. 65, p. 601-606pt_PT
dc.identifier.doi10.3303/CET1865101pt_PT
dc.identifier.issn2283-9216
dc.identifier.urihttp://hdl.handle.net/10400.9/3081
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAIDIC - The Italian Association of Chemical Engineeringpt_PT
dc.relationFCOMP-01-0124-FEDER-027827pt_PT
dc.relationREMOÇÃO DE COMPOSTOS FARMACÊUTICOS PRESENTES EM ÁGUAS RESIDUAIS POR ADSORSÃO EM CARBONIZADOS E CARVÕES ACTIVADOS OBTIDOS A PARTIR DE DESPERDÍCIOS DE BIOMASSA
dc.relationRecuperação de metais com elevado valor comercial através da adsorção por carbonizados provenientes de resíduos da cultura do arroz Rice2Metal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCo-pyrolysispt_PT
dc.subjectRice wastespt_PT
dc.subjectWaste valorizationpt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectChromiumpt_PT
dc.subjectThermochemical processes
dc.titleActivated carbons from the co-pyrolysis of rice wastes for Cr(III) removalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleREMOÇÃO DE COMPOSTOS FARMACÊUTICOS PRESENTES EM ÁGUAS RESIDUAIS POR ADSORSÃO EM CARBONIZADOS E CARVÕES ACTIVADOS OBTIDOS A PARTIR DE DESPERDÍCIOS DE BIOMASSA
oaire.awardTitleRecuperação de metais com elevado valor comercial através da adsorção por carbonizados provenientes de resíduos da cultura do arroz Rice2Metal
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAAG-REC%2F3477%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F93407%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F101751%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.citation.endPage606pt_PT
oaire.citation.startPage601pt_PT
oaire.citation.titleChemical Engineering Transactionspt_PT
oaire.citation.volume65pt_PT
oaire.fundingStream5876-PPCDTI
oaire.fundingStreamOE
oaire.fundingStream5876
person.familyNameDias
person.familyNameBernardo
person.familyNameLapa
person.familyNamePinto
person.givenNameDiogo
person.givenNameMaria
person.givenNameNuno
person.givenNameFilomena
person.identifier90528
person.identifier.ciencia-id1E11-A847-44DA
person.identifier.ciencia-id5A14-EADB-672D
person.identifier.orcid0000-0002-9757-1605
person.identifier.orcid0000-0002-5823-6636
person.identifier.orcid0000-0001-7862-7477
person.identifier.orcid0000-0002-1014-568X
person.identifier.ridC-4035-2015
person.identifier.ridB-5187-2015
person.identifier.ridK-8456-2013
person.identifier.scopus-author-id55385919600
person.identifier.scopus-author-id22933828300
person.identifier.scopus-author-id6602694802
person.identifier.scopus-author-id7102740188
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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