Sulfate-reducing bacteria release barium and radium from naturally occurring radioactive material in oil-field barite
Geomicrobiology Journal
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Abstract
Scale and sludge deposits formed during oil production can contain elevated levels of Ra, often coprecipitated with barium sulfate (barite). The potential for sulfate-reducing bacteria to release 226 Ra and Ba (a Ra analog) from oil-field barite was evaluated. The concentration of dissolved Ba increased when samples containing pipe scale, tank sludge, or oil-field brine pond sediment were incubated with sulfate-reducing bacteria Desulfovibrio sp., Str LZKI, isolated from an oil-field brine pond. However, Ba release was not stoichiometric with sulfide production in oil-field samples, and <0.1% of the Ba was released. Potential for the release of 226Ra was demonstrated, and the 226 Ra release associated with sulfate-reducing activity was predictable from the amount of Ba released. As with Ba, only a fraction of the 226Ra expected from the amount of sulfide produced was released, and most of the Ra remained associated with the solid material.
Suggested Citation
Phillips, E.J., Landa, E.R., Kraemer, T., Zielinski, R., 2001, Sulfate-reducing bacteria release barium and radium from naturally occurring radioactive material in oil-field barite: Geomicrobiology Journal, v. 18, no. 2, p. 167-182, https://doi.org/10.1080/01490450120549.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Sulfate-reducing bacteria release barium and radium from naturally occurring radioactive material in oil-field barite |
| Series title | Geomicrobiology Journal |
| DOI | 10.1080/01490450120549 |
| Volume | 18 |
| Issue | 2 |
| Year Published | 2001 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 16 p. |
| First page | 167 |
| Last page | 182 |