A number of digestates obtained from various mixtures of organic wastes were analyzed by FTIR spectroscopy. A general evidence emerging from FTIR spectra was the large variability in the composition of fresh organic substrates both in terms of chemical complexity and seasonal variations. FTIR spectra of the organic fraction of municipal solid waste reflected their chemical composition rich in proteins, fatty acids, carbohydrates and phenolic groups whereas those of sewage sludge samples indicated a notable content of inorganic materials which obviously were found unchanged in digestates. Digestates obtained by energy crops, poultry manure, stomach residue and others agro-industrial residue sampled in different sections of the digestion plan reflected the high content of protinaceous materials from poultry manure and stomach residues in the feed-in mixtures. Fourier Self Deconvolution (FSD) of FTIR spectra proved to be very useful in evidencing changes in relative intensity of peaks both in feed-in mixtures and in digestates.
Provenzano M. R., Malerba A. D., Buscaroli A., Fabbri C., Senesi N. (2013). FOURIER TRANSFORM INFRARED SPECTROSCOPY ASSOCIATED TO FOURIER SELF DECONVOLUTION OF SPECTRA APPLIED TO THE CHARACTERIZATION OF DIGESTATES OBTAINED FROM DIFFERENT ORGANIC SUBSTRATES.
FOURIER TRANSFORM INFRARED SPECTROSCOPY ASSOCIATED TO FOURIER SELF DECONVOLUTION OF SPECTRA APPLIED TO THE CHARACTERIZATION OF DIGESTATES OBTAINED FROM DIFFERENT ORGANIC SUBSTRATES
BUSCAROLI, ALESSANDRO;
2013
Abstract
A number of digestates obtained from various mixtures of organic wastes were analyzed by FTIR spectroscopy. A general evidence emerging from FTIR spectra was the large variability in the composition of fresh organic substrates both in terms of chemical complexity and seasonal variations. FTIR spectra of the organic fraction of municipal solid waste reflected their chemical composition rich in proteins, fatty acids, carbohydrates and phenolic groups whereas those of sewage sludge samples indicated a notable content of inorganic materials which obviously were found unchanged in digestates. Digestates obtained by energy crops, poultry manure, stomach residue and others agro-industrial residue sampled in different sections of the digestion plan reflected the high content of protinaceous materials from poultry manure and stomach residues in the feed-in mixtures. Fourier Self Deconvolution (FSD) of FTIR spectra proved to be very useful in evidencing changes in relative intensity of peaks both in feed-in mixtures and in digestates.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
