Characterization and thermal study of organic extracts of urban solid waste

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dc.contributor.authorAlmeida, Sonia de [UNESP]
dc.contributor.authorSantos, Danilo Vitorino dos [UNESP]
dc.contributor.authorCrespi, Marisa Spirandeli [UNESP]
dc.contributor.authorBernabé, G. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-05-15T13:30:22Z
dc.date.available2015-05-15T13:30:22Z
dc.date.issued2014
dc.description.abstractThe urban residues put in landfill of the city of Sa˜o Carlos-SP, Brazil, in 2004 represent 58.7 % of decomposed organic material. The aim of this research was to characterize samples of urban solid waste and its organic extracts targeting the use of this residue without damaging the environment. The curves were obtained in a nitrogen atmosphere, a heating rate of 20 C min-1 , the temperature of 30–600 C. In the original sample after humidity loss, an event occured concerning the water constitution in the TG curve with an endothermic peak in the DTA curve. There was a presence of inorganic residue in the ashes. The organic matter present in the USR sample disposed in the landfill is constituted by several polarity, organics compounds from the degradation of lignin, cellulose, lipids, and other materials which thermal stabilities are distinct. The hexane extract features in its constitution two fatty acids, stearic and triacontano´ic, which are nonpolar compounds originating from bacteria present in the residue. The acids groups in extract hexane also were evidenced by X-ray diffraction and FTIR.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Química Analítica, Instituto de Química de Araraquara, Araraquara, Rua Professor Francisco Degni, s/n, Quitandinha, CEP 14801-970, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Química Analítica, Instituto de Química de Araraquara, Araraquara, Rua Professor Francisco Degni, s/n, Quitandinha, CEP 14801-970, SP, Brasil
dc.description.sponsorshipAcademia da Força Aérea (AFA)
dc.description.sponsorshipFundação de Apoio à Ciência, Tecnologia e Educação (FACTE)
dc.identifier.citationJournal of Thermal Analysis and Calorimetry, 2014.
dc.identifier.doi10.1007/s10973-014-4187-3
dc.identifier.issn1388-6150
dc.identifier.lattes7471310113999140
dc.identifier.urihttp://hdl.handle.net/11449/123532
dc.language.isoeng
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.ispartofjcr2.209
dc.relation.ispartofsjr0,587
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjecturban solid wasteen
dc.subjectThermal Studyen
dc.subjectorganic extracten
dc.titleCharacterization and thermal study of organic extracts of urban solid wasteen
dc.typeArtigo
unesp.author.lattes7471310113999140
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analíticapt

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