Chemical evaluation of pyrolysis oils from domestic and industrial effluent treatment station sludges with perspective to produce value-added products

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dc.contributor.authorRodrigues J.L.
dc.contributor.authorCampelo J.D.M.
dc.contributor.authorWisniewski A.
dc.contributor.authorHantao L.W.
dc.contributor.authorEberlin M.N.
dc.contributor.authorSantos J.M.
dc.date.accessioned2024-03-12T19:09:01Z
dc.date.available2024-03-12T19:09:01Z
dc.date.issued2023
dc.description.abstract© 2023 Elsevier LtdThe use of renewable sources for energy has increased due to the high demand of modern society and the environmental impacts caused by the use of fossil fuels. Environmentally friendly renewable energy production may involve thermal processes, including the application of biomass. We provide a comprehensive chemical characterization of sludges from domestic and industrial effluent treatment stations, as well as the bio-oils produced by fast pyrolysis. A comparative study of the sludges and the corresponding pyrolysis oils was performed, with characterization of the raw materials using thermogravimetric analysis, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry. The bio-oils were characterized using comprehensive two-dimensional gas chromatography/mass spectrometry that identified compounds classified according to their chemical class, mainly related to nitrogenous (62.2%) and ester (18.9%) for domestic sludge bio-oil, and nitrogenous (61.0%) and ester (27.6%) for industrial sludge bio-oil. The Fourier transform ion cyclotron resonance mass spectrometry revealed a broad distribution of classes with oxygen and/or sulfur (N2O2S, O2, and S2 classes). Nitrogenous compounds (N, N2, N3, and NxOx classes) were also found to be abundant in both bio-oils, due to the origins of the sludges (with the presence of proteins), making these bio-oils unsuitable for use as renewable fuels, since NOx gases could be released during combustion processes. The presence of functionalized alkyl chains indicated the potential of the bio-oils as sources of high added-value compounds that could be obtained by recovery processes and used for the manufacture of fertilizers, surfactants, and nitrogen solvents.
dc.description.firstpage202
dc.description.lastpage210
dc.description.volume168
dc.identifier.doi10.1016/j.wasman.2023.06.004
dc.identifier.issn1879-2456
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34046
dc.relation.ispartofWaste Management
dc.rightsAcesso Restrito
dc.subject.otherlanguageBio-oils
dc.subject.otherlanguagePyrolysis
dc.subject.otherlanguageResidues
dc.subject.otherlanguageSludges
dc.subject.otherlanguageWastes
dc.titleChemical evaluation of pyrolysis oils from domestic and industrial effluent treatment station sludges with perspective to produce value-added products
dc.typeArtigo
local.scopus.citations3
local.scopus.eid2-s2.0-85163138744
local.scopus.subjectBio-oils
local.scopus.subjectChemical evaluation
local.scopus.subjectDomestic effluents
local.scopus.subjectEnergy
local.scopus.subjectIndustrial effluent
local.scopus.subjectPyrolysis oil
local.scopus.subjectRenewable sources
local.scopus.subjectResidue
local.scopus.subjectSludge
local.scopus.subjectValue added products
local.scopus.subjectBiofuels
local.scopus.subjectHot Temperature
local.scopus.subjectNitrogen
local.scopus.subjectOils
local.scopus.subjectOxygen
local.scopus.subjectPlant Oils
local.scopus.subjectPyrolysis
local.scopus.subjectSewage
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85163138744&origin=inward
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