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Biodegradation

Title:		Abatement of volatile organic sulfur compounds in odorous emissions from the bio-industry
Author(s):		Smet E; Van Langenhove H;
Address:		"Department of Organic Chemistry, Faculty of Agricultural and Applied Biological Sciences, University of Ghent, Belgium"
Journal Title:		Biodegradation
Year:		1998
Volume:		9
Issue:		3-Apr
Page Number:		273 - 284
DOI:		10.1023/a:1008281609966
ISSN/ISBN:		0923-9820 (Print) 0923-9820 (Linking)
Abstract:		"Compounds of interest in this work are methanethiol (MeSH), dimethyl sulfide (Me2S), dimethyl polysulfides (Me2Sx) and carbon disulfide (CS2) since these volatiles have been identified as predominant odorants in the emission of a wide range of activities in the bio-industry (e.g. aerobic waste water treatment plants, composting plants, rendering plants). In these processes, the occurrence of volatile organic sulfur compounds is mainly related to the presence of anaerobic microsites with consecutive fermentation of sulfur containing organic material and/or to the breakdown of the latter due to thermal heating. Due to the chemical complexity of these low-concentrated waste gas streams and the high flow rates to be handled, mainly biotechnological techniques and scrubbers can be used to control the odour emission. When using biofilters or trickling filters, inoculation with specific microorganisms and pH-control strategies should be implemented to optimise the removal of volatile organic sulfur compounds. In scrubbers, chemical oxidation of the volatile organic sulfur compounds can be obtained by dosing hypochlorite, ozone or hydrogen peroxide to the scrubbing liquid. However, optimal operational conditions for each of these abatement techniques requires a further research in order to guarantee a long-term and efficient overall odour abatement"
Keywords:		"Anaerobiosis Biodegradation, Environmental *Biotechnology Chemical Phenomena Chemistry, Physical Filtration *Industry Odorants/*analysis Sulfur Compounds/*analysis Sulfur-Reducing Bacteria/*metabolism Temperature *Waste Disposal, Fluid;"
Notes:		"MedlineSmet, E Van Langenhove, H eng Research Support, Non-U.S. Gov't Netherlands 1999/02/18 Biodegradation. 1998; 9(3-4):273-84. doi: 10.1023/a:1008281609966"