Composting of urban solid residues (USR) by different dispositions - Kinetics of thermal decomposition

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCrespi, Marisa Spirandeli
dc.creatorSilva, A. R.
dc.creatorRibeiro, Clovis Augusto
dc.creatorOliveira, S. C.
dc.creatorSantiago-Silva, M. R.
dc.date2014-05-20T15:22:43Z
dc.date2016-10-25T17:56:28Z
dc.date2014-05-20T15:22:43Z
dc.date2016-10-25T17:56:28Z
dc.date2003-01-01
dc.date.accessioned2017-04-05T23:38:15Z
dc.date.available2017-04-05T23:38:15Z
dc.identifierJournal of Thermal Analysis and Calorimetry. Dordrecht: Kluwer Academic Publ, v. 72, n. 3, p. 1049-1056, 2003.
dc.identifier1388-6150
dc.identifierhttp://hdl.handle.net/11449/33651
dc.identifierhttp://acervodigital.unesp.br/handle/11449/33651
dc.identifier10.1023/A:1025055323613
dc.identifierWOS:000184396400028
dc.identifier0000-0002-7984-5908
dc.identifierhttp://dx.doi.org/10.1023/A:1025055323613
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/877728
dc.descriptionThe thermal behavior and non-isothermal kinetics of thermal decomposition of three different kinds of composting of the USR like: stack with drilled PVC tubes (ST), revolved stack (SR) and stack with material of structure (SM), from the usine of composing of Araraquara city, São Paulo state, Brazil, within a period of 132 days of composting were studied.Results from TG, DTG and DSC curves obtained on inert atmosphere indicated that the cellulosic fraction present, despite the slow degradation during the composting process, is thermally less stable than other substances originated from that process. Due to that behavior, the cellulosic fraction decomposition could be kinetically evaluated through non-isothermal methods of analysis.The values obtained were: average activation energy, E-a=248, 257 and 259 kJ mol(-1) and pre-exponential factor, logA=21.4, 22.5, 22.7 min(-1), to the ST, SR and SM, respectively.From E-a and logA values and DSC curves, Malek procedure could be applied, suggesting that the SB (Sestak-Berggren) kinetic model is the appropriated one to the first thermal decomposition step.
dc.languageeng
dc.publisherKluwer Academic Publ
dc.relationJournal of Thermal Analysis and Calorimetry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectcomposting
dc.subjectkinetic parameters
dc.subjectthermal behavior
dc.subjecturban solid residues
dc.titleComposting of urban solid residues (USR) by different dispositions - Kinetics of thermal decomposition
dc.typeOtro


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