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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 |
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