Crespi, Marisa Spirandeli [UNESP]Silva, A. R.Ribeiro, Clovis Augusto [UNESP]Oliveira, S. C.Santiago-Silva, M. R.2014-05-202014-05-202003-01-01Journal of Thermal Analysis and Calorimetry. Dordrecht: Kluwer Academic Publ, v. 72, n. 3, p. 1049-1056, 2003.1388-6150http://hdl.handle.net/11449/33651The 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.1049-1056engcompostingkinetic parametersthermal behaviorurban solid residuesArtigo10.1023/A:1025055323613WOS:000184396400028Acesso restrito747131011399914084983108918100820000-0002-7984-5908