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Appl Microbiol Biotechnol

Title:		Biofiltration of volatile organic compounds
Author(s):		Malhautier L; Khammar N; Bayle S; Fanlo JL;
Address:		"Laboratoire Genie de l'Environnement Industriel, Ecole des Mines d'Ales, 6, avenue de Clavieres, 30319, Ales cedex, France. luc.malhautier@ema.fr"
Journal Title:		Appl Microbiol Biotechnol
Year:		2005
Volume:		20050401
Issue:		1
Page Number:		16 - 22
DOI:		10.1007/s00253-005-1960-z
ISSN/ISBN:		0175-7598 (Print) 0175-7598 (Linking)
Abstract:		"The removal of volatile organic compounds (VOCs) from contaminated airstreams has become a major air pollution concern. Improvement of the biofiltration process commonly used for the removal of odorous compounds has led to a better control of key parameters, enabling the application of biofiltration to be extended also to the removal of VOCs. Moreover, biofiltration, which is based on the ability of micro-organisms to degrade a large variety of compounds, proves to be economical and environmentally viable. In a biofilter, the waste gas is forced to rise through a layer of packed porous material. Thus, pollutants contained in the gaseous effluent are oxidised or converted into biomass by the action of microorganisms previously fixed on the packing material. The biofiltration process is then based on two principal phenomena: (1) transfer of contaminants from the air to the water phase or support medium, (2) bioconversion of pollutants to biomass, metabolic end-products, or carbon dioxide and water. The diversity of biofiltration mechanisms and their interaction with the microflora mean that the biofilter is defined as a complex and structured ecosystem. As a result, in addition to operating conditions, research into the microbial ecology of biofilters is required in order better to optimise the management of such biological treatment systems"
Keywords:		"Aerobiosis *Air Pollutants/metabolism Air Pollution/*prevention & control Anaerobiosis Biodegradation, Environmental *Bioreactors Volatilization;"
Notes:		"MedlineMalhautier, Luc Khammar, Nadia Bayle, Sandrine Fanlo, Jean-Louis eng Review Germany 2005/04/02 Appl Microbiol Biotechnol. 2005 Jul; 68(1):16-22. doi: 10.1007/s00253-005-1960-z. Epub 2005 Apr 1"