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J Air Waste Manag Assoc

Title:		Characteristic analysis for odor gas emitted from food waste anaerobic fermentation in the pretreatment workshop
Author(s):		Di Y; Liu J; Liu J; Liui S; Yan L;
Address:		"School of Applied Sciences, University of Science and Technology Beijing, Beijing, China"
Journal Title:		J Air Waste Manag Assoc
Year:		2013
Volume:		63
Issue:		10
Page Number:		1173 - 1181
DOI:		10.1080/10962247.2013.807318
ISSN/ISBN:		1096-2247 (Print) 1096-2247 (Linking)
Abstract:		"Gas chromatography-mass spectrometry, olfactometry, and other related methods were applied for the qualitative and quantitative analysis of the characteristics of odorous gases in the pretreatment workshop. The composition of odorous gases emitted from municipal food waste was also investigated in this study. The results showed that the tested gases are mainly composed of aromatic gases, which account for 49% of the total volatile organic compounds (VOC) concentrations. The nitrogenous compounds comprise 15% of the total concentration and the other gases comprise the remaining 36%. The level of odor concentration ranged from 2523 odor units (OU) m(-3) to 3577 OU m(-3). The variation of the total chemical composition ranged from 19,725 microg m(-3) to 24,184 microg m(-3). Among the selected four sampling points, the discharge outlet was detected to have the highest concentration in terms of odor, total chemical, sulfur compounds, and aromatics. The correlation analysis showed that the odor concentrations were evidently related to the total chemical composition, sulfur compounds, and aromatics (P < 0.05, n = 5). The odor activity value analysis identified the top three compounds, hydrogen sulfide (91.8), ethyl sulfide (35.8), and trimethylamine (70.6), which contribute to air pollution complaint of waste materials"
Keywords:		Anaerobiosis Fermentation/*physiology Gases/*chemistry *Odorants Refuse Disposal/*methods;
Notes:		"MedlineDi, Yanqiang Liu, Jiemin Liu, Jianguo Liui, Siyuan Yan, Luchun eng Research Support, Non-U.S. Gov't 2013/11/29 J Air Waste Manag Assoc. 2013 Oct; 63(10):1173-81. doi: 10.1080/10962247.2013.807318"