Degradation of 2,4-DNT, 2,6-DNT, and 2,4,6-TNT by indigenous aquifer microorganisms
- Geological Survey, Columbia, SC (United States)
Microorganisms indigenous to aquifer sediments collected at an explosives-contaminated site removed greater than 99% of added 2,4-dinitrotoluene (2,4-DNT) and 2,4,6-trinitrotoluene (TNT) from aerobic microcosms within 70 days. The initial microcosms substrate concentrations were about 100 {micro}M. Approximately 55% of 2,6-dinitrotoluene (2,6-DNT) was removed within the same period. Decreases in the dissolved concentrations of the DNT and TNT test substrates were accompanied by accumulation of amino-mononitrotoluene or amino-DNT compounds, respectively. The lack of appreciable CO{sub 2} production by aquifer materials in the absence of added test substrate suggests the possibility that a significant fraction of these compounds was completely degraded to CO{sub 2} within 70 days.
- OSTI ID:
- 490987
- Report Number(s):
- CONF-950483--; ISBN 1-57477-008-X
- Country of Publication:
- United States
- Language:
- English
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