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Bioresour Technol

Title:		Monitoring of volatile compound emissions during dry anaerobic digestion of the Organic Fraction of Municipal Solid Waste by Proton Transfer Reaction Time-of-Flight Mass Spectrometry
Author(s):		Papurello D; Soukoulis C; Schuhfried E; Cappellin L; Gasperi F; Silvestri S; Santarelli M; Biasioli F;
Address:		"Fondazione Edmund Mach, Biomass and Renewable Energy Unit, Via E. Mach 1, 38010 San Michele a/A, Italy"
Journal Title:		Bioresour Technol
Year:		2012
Volume:		20120924
Issue:
Page Number:		254 - 265
DOI:		10.1016/j.biortech.2012.09.033
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Volatile Organic Compounds (VOCs) formed during anaerobic digestion of aerobically pre-treated Organic Fraction of Municipal Solid Waste (OFMSW), have been monitored over a 30 day period by a direct injection mass spectrometric technique: Proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-ToF-MS). Most of the tentatively identified compounds exhibited a double-peaked emission pattern which is probably the combined result from the volatilization or oxidation of the biomass-inherited organic compounds and the microbial degradation of organic substrates. Of the sulfur compounds, hydrogen sulfide had the highest accumulative production. Alkylthiols were the predominant sulfur organic compounds, reaching their maximum levels during the last stage of the process. H(2)S formation seems to be influenced by the metabolic reactions that the sulfur organic compounds undergo, such as a methanogenesis induced mechanism i.e. an amino acid degradation/sulfate reduction. Comparison of different batches indicates that PTR-ToF-MS is a suitable tool providing information for rapid in situ bioprocess monitoring"
Keywords:		"Anaerobiosis Biodegradation, Environmental Biofuels/analysis Biomass Carbon Dioxide/analysis *Cities Italy Mass Spectrometry/*methods Methane/analysis Organic Chemicals/*chemistry Oxidation-Reduction Oxygen/analysis Principal Component Analysis *Protons S;"
Notes:		"MedlinePapurello, Davide Soukoulis, Christos Schuhfried, Erna Cappellin, Luca Gasperi, Flavia Silvestri, Silvia Santarelli, Massimo Biasioli, Franco eng Research Support, Non-U.S. Gov't England 2012/10/20 Bioresour Technol. 2012 Dec; 126:254-65. doi: 10.1016/j.biortech.2012.09.033. Epub 2012 Sep 24"