Application of fourier transform infrared spectroscopy, chemical and chemometrics analyses to the characterization of agro-industrial waste
AUTOR(ES)
Merlin, Nathalie, Nogueira, Barbara Arruda, Lima, Vanderlei Aparecido de, Santos, Larissa Macedo dos
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2014
RESUMO
Agroindustrial waste in general presents significant levels of nutrients and organic matter and has therefore been frequently put to agricultural use. In this context, the objective of this study was to determine the chemical composition, nitrogen, phosphorus, potassium, calcium, magnesium and carbon content, as well as the qualitative characteristics through Fourier transform infrared spectroscopy of four samples of poultry litter and one sample of cattle manure, from the southwestern region of Paraná, Brazil. Results revealed that, in general, the poultry litter presented higher amount of nutrients and carbon than the cattle manure. The infrared spectra allowed identification of the functional groups present and the differences in degree of sample humification. The statistical treatment confirmed the quantitative and qualitative differences revealed.
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