Chemical and biological oxidation of slurry-phase polycyclic aromatic hydrocarbons
- IT Corp., San Bernardino, CA (United States)
- Environmental Protection Agency, Cincinnati, OH (United States). National Risk Management Research Lab.
- IT Corp., Knoxville, TN (United States)
Bioslurry treatment of polycyclic aromatic hydrocarbon (PAH)-impacted soils was demonstrated under the Superfund Innovative Technologies Evaluation--Emerging Technologies Program (SITE ETP) as an extension of research previously funded by IT Corporation (IT) and additional investigations supported by the US Environmental Protection Agency (US EPA) (Davila et al. 1994). During the demonstration, IT operated two 60-L TEKNO Associates bioslurry reactors and a 10-L fermentation unit in semi-continuous, plug-flow mode for a 6-month period. The first 60-L reactor received fresh feed daily and supplements of salicylate and succinate to enhance PAH biodegradation.Effluent from the first reactor was fed to the second 10-L reactor in series, where Fenton`s reagent was added to accelerate oxidation of 4- to 6-ring PAHs. The third reactor in series was used as a polishing reactor to biologically oxidize contaminants remaining following the addition of Fenton`s reagent. R3 received no additions of salicylate and succinate. The reactor was aerated, nutrient-amended, and pH-adjusted only. During operation, the reactor system demonstrated average total PAH and carcinogenic PAH removals of 85 and 66%, respectively.
- Sponsoring Organization:
- Environmental Protection Agency, Washington, DC (United States)
- OSTI ID:
- 479349
- Report Number(s):
- CONF-950483-; ISBN 1-57477-010-1; TRN: IM9725%%110
- 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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