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dc.contributor.authorINACIO, C. T.pt_BR
dc.contributor.authorURQUIAGA, S.pt_BR
dc.contributor.authorCHALK, P. M.pt_BR
dc.contributor.authorALVES, B. J. R.pt_BR
dc.date.accessioned2016-02-02T11:11:11Zpt_BR
dc.date.available2016-02-02T11:11:11Zpt_BR
dc.date.created2016-02-02pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationIn: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 4., 2015, Rio de Janeiro. Anais... Brasília, DF: Embrapa, 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1035878pt_BR
dc.descriptionNitrogen (N) losses during composting reduce the value of the end product as a fertilizer. Nitrogen is lost during composting mainly by ammonia (NH3) volatilization in the thermophilic phase. We used three bench-scale aerobic bioreactors with a controlled temperature difference (CDT) system as an experimental approach to investigate the pattern of N losses during composting. N2O peak emission occurred much earlier (7h) than NH3 volatilization (48-60h) during the thermophilic phase (~55°C) of bench-scale composting. The NH3 volatilization peak rate occurred following the greater biological activity (O2 consumed/CO2 evolved) at 40°C which could coincide with greater ammonification, but immobilization of NH4+/NH3 also occurs at this point affecting NH3 volatilization. Differences in temperature curves and accumulated NH3-N were related to the biological activity in each vessel. Therefore, O2 consumed/CO2 evolved measurements must be part of the evaluation of composting in further studies for comparisons of techniques to reduce NH3 volatilizationpt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectEstrume de cavalopt_BR
dc.subjectBiorreatorespt_BR
dc.subjectMétodo respirométricopt_BR
dc.titleNitrogen loss (NH3, N2O) patterns in bench-scale composting.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2016-02-02T11:11:11Zpt_BR
riaa.ainfo.id1035878pt_BR
riaa.ainfo.lastupdate2016-02-02pt_BR
dc.contributor.institutionCAIO DE TEVES INACIO, CNPS; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; P. M. CHALK; BRUNO JOSE RODRIGUES ALVES, CNPAB.pt_BR
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