Inhibition of acetoclastic methanogenesis in crude oil- and creosote-contaminated groundwater
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Abstract
Results from a series of studies of methanogenic processes in crude oil- and creosote-contaminated aquifers indicate that acetoclastic methanogenesis is inhibited near non-aqueous sources. At a crude oil-contaminated site, numbers of acetoclastic methanogens found close to crude oil were one hundred times fewer than those of hydrogen- and formate-utilizing methanogens. In laboratory toxicity assays, crude oil collected from the site inhibited methane production from acetate but not from formate or hydrogen. Toxicity assays with aqueous creosote extract completely inhibited acetate utilization over the range of tested dilutions but only mildly affected formate and hydrogen utilization. The combined results from the laboratory and field studies suggest that in methanogenic contaminated aquifers, inhibition of acetoclastic methanogenesis may lead to a buildup of acetate relative to dissolved organic carbon.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Inhibition of acetoclastic methanogenesis in crude oil- and creosote-contaminated groundwater |
| Series title | Bioremediation Journal |
| DOI | 10.1080/10889860490465840 |
| Volume | 8 |
| Issue | 1-2 |
| Year Published | 2004 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 11 p. |
| First page | 1 |
| Last page | 11 |
| Country | United States |
| State | Florida, Minnesota |
| City | Bemidji, Pensacola |
| Google Analytic Metrics | Metrics page |