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Authors:M. Odlare: Department of Public Technology, Mälardalen University, Sweden
E. Nehrenheim: Department of Public Technology, Mälardalen University, Sweden
Publication title:Microbiological degradation of explosives in bioreactor
Conference:The Swedish Section for Detonics and Combustion; Fourth International Disposal Conference
Publication type: Abstract
Issue:018
Article No.:004
Abstract:The production; testing; use and disposal of explosives have extensively contaminated the soil and water at a large number of sites. Several laboratory and field studies have indicated that explosives are toxic to a number of organisms; including humans; in relatively low amounts. There is an urgent need for simple; cheap and effective techniques which can degrade explosive compounds in soil and sludge in an ecologically sound manner. In the present study; a two-step microbiological method was developed where explosive compounds were degraded under shifting anaerobic and aerobic conditions. The method was optimized in a small-scale bioreactor where TNT was mixed with soil; water and substrate and subjected to continuous stirring. For the first 8 days; anaerobic conditions were applied to the bioreactor and for the remaining 12 days; aerobic conditions were applied. Preliminary results show that 75% of the TNT was degraded after four days. The conclusion from the study is that TNT is effectively degraded by the bioreactor technique; and the efficiency can probably be even more improved by certain modification measures.
Language:English
Year:2006
No. of pages:1
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/018/004/ecp061804.pdf
Available:2007-03-13
Publisher:Linköping University Electronic Press; Linköpings universitet

REFERENCE TO THIS PAGE
M. Odlare, E. Nehrenheim (2006). Microbiological degradation of explosives in bioreactor, The Swedish Section for Detonics and Combustion; Fourth International Disposal Conference http://www.ep.liu.se/ecp_article/index.en.aspx?issue=018;article=004 (accessed 10/21/2014)