Removal of creosote from soil by bioslurry reactors
Biological slurry reactors were tested for removal of polynuclear aromatic hydrocarbons (PAHs) from creosote contaminated soil. Five bioslurry reactors, operated in parallel, kept the soil aerated, partially suspended and well mixed. The reactors were inoculated with indigenous microbes of the Genus Pseudomonas. Nutrients were added to maintain the optimum ratio of carbon, nitrogen, and phosphorus. Temperature within the reactors was approximately 25C. The slurry consisted of approximately 30% contaminated soil. Results of pilot studies showed that approximately 90% of the total PAHs were removed in the first two weeks. Total PAH concentration in the soil was reduced from approximately 10973 mg/kg to 1097 mg/kg.
- Research Organization:
- IT Environmental Programs, Inc., Cincinnati, OH (United States)
- OSTI ID:
- 6995193
- Report Number(s):
- PB-92-227339/XAB; CNN: EPA-68-C9-0036
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AROMATICS
BACTERIA
BIODEGRADATION
BIOREACTORS
CHEMICAL REACTIONS
CLEANING
CREOSOTE
DECOMPOSITION
DECONTAMINATION
DISPERSIONS
HYDROCARBONS
MANAGEMENT
MATERIALS RECOVERY
MICROORGANISMS
MIXTURES
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
PROCESSING
PSEUDOMONAS
REMEDIAL ACTION
REMOVAL
SLURRIES
SOILS
SUSPENSIONS
WASTE MANAGEMENT
WASTE PROCESSING