Anaerobic aquifer transformations of 2,4-Dinitrophenol under different terminal electron accepting conditions
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
We evaluated the susceptibility of 2,4-dinitrophenol (2,4-DNP) and 2,4-diaminophenol to anaerobic biodegradation in aquifer slurries. Aquifer microorganisms depleted 2,4-DNP at rates of 25, 9 and 0.4 μM/day under methanogenic, sulfate-reducing and nitrate-reducing conditions, respectively. Rates of abiotic, 2,4-DNP loss in autoclaved control incubations were 7.2, 6.2 and 0.95 μM/day respectively. Abiotic, 2,4-DNP reduction was especially important as the first step in its transformation. 2-Amino-4-nitrophenol was produced by this process, but this compound was further metabolized in methanogenic and sulfate-reducing aquifer slurries. This partially reduced compound persisted in autoclaved controls and in the nitrate-reducing aquifer slurries. Aquifer slurries incubated with either 2,4-DNP or 2,4-diaminophenol produced methane when incubated with no other electron acceptor suggesting that mineralization had occurred under these conditions. In parallel experiments, aquifer slurries amended with 2,6-dinitrophenol or picric acid did not produce methane at levels above the substrate unamended controls.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Anaerobic aquifer transformations of 2,4-Dinitrophenol under different terminal electron accepting conditions |
| Series title | Anaerobe |
| DOI | 10.1006/anae.1997.0116 |
| Volume | 3 |
| Issue | 6 |
| Year Published | 1997 |
| Language | English |
| Publisher | Elseiver |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 5 p. |
| First page | 399 |
| Last page | 403 |
| Google Analytic Metrics | Metrics page |