Degradation of polycyclic aromatic hydrocarbons by a marine fluidized-bed enrichment
- Tampere Univ. of Technology (Finland)
- Helsinki Univ. of Technology (Finland)
- Univ. of Washington, Seattle, WA (United States). Dept. of Civil Engineering
Aerobic polycyclic aromatic hydrocarbon (PAH)-degrading bacteria from marine sediments were enriched and maintained in a fluidized-bed reactor (FBR). The FBR was continuously fed a mixture of naphthalene, biphenyl, 2-methylnaphthalene, 2,6-dimethylnaphthalene, acenaphthene, fluorene, and phenanthrene; and the effluent concentrations remained below 0.03 mg/L (detection limit) over a period of 6 months. In batch vial assays, the relative rates of PAH degradation were controlled by their solubilities and, in some cases, by their substitution patterns. The enrichment also degraded several other PAHs, including anthracene and pyrene. The results demonstrate that the predominant PAH constituents of coal-tar creosote can be degraded and that PAH-contaminated saline waters can be remediated by the marine enrichment.
- Sponsoring Organization:
- Suomen Akatemja, Helsinki (Finland); Office of Naval Research, Washington, DC (United States)
- OSTI ID:
- 479373
- Report Number(s):
- CONF-950483-; ISBN 1-57477-010-1; TRN: 97:010491
- Resource Relation:
- Conference: 3. international in situ and on-site bioreclamation symposium, San Diego, CA (United States), 24-27 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Biological unit processes for hazardous waste treatment; Hinchee, R.E.; Skeen, R.S. [eds.] [Battelle Memorial Inst., Columbus, OH (United States)]; Sayles, G.D. [ed.]; PB: 358 p.; Bioremediation, Volume 3(9)
- Country of Publication:
- United States
- Language:
- English
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