In situ bioremediation (natural attenuation) at a gas plant waste site
- Utah State Univ., Logan, UT (United States). Dept. of Civil and Environmental Engineering
- Electric Power Research Inst., Palo Alto, CA (United States)
A former manufactured gas plant (MGP) waste site in New York was evaluated with regard to natural attenuation of polycyclic aromatic hydrocarbons (PAHs). Parent-compound concentrations of PAHs within an aquifer plume were observed to decrease with time subsequent to source removal of coal tar. Biotransformation-potential studies indicated that indigenous microorganisms in soil from the site were capable of degrading naphthalene and phenanthrene. A biochemical metabolite of phenanthrene degradation, 1-hydroxy-2-naphthoic acid (1H2NA), was tentatively characterized in coal-tar-contaminated soil from the site-based on liquid chromatographic retention time. Kinetic information was developed for the disappearance of phenanthrene and 1H2NA in nonspiked contaminated soil at the site. The Microtox{trademark} bioassay was used to evaluate toxicity trends in contaminated soil at the site. Results from the Microtox{trademark} indicated a decreasing trend in toxicity with respect to time in contaminated site soil. Research results were evaluated with regard to the National Research Council`s guidelines for evaluating in situ bioremediation, and were used to enhance site characterization and monitoring information for evaluating the role of bioremediation as part of natural attenuation of PAHs at coal-tar-contaminated sites.
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 464898
- Report Number(s):
- CONF-950483-; ISBN 1-57477-002-0; TRN: 97:007412
- 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 Intrinsic bioremediation; Hinchee, R.E. [ed.] [Battelle Memorial Inst., Columbus, OH (United States)]; Wilson, J.T. [ed.] [Environmental Protection Agency, Ada, OK (United States). Ground Water Protection and Remediation Div.]; Downey, D.C. [ed.] [Parsons Engineering Science, Inc., Denver, CO (United States)]; PB: 276 p.; Bioremediation, Volume 3(1)
- Country of Publication:
- United States
- Language:
- English
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