Technology evaluation report: Pilot-scale demonstration of a slurry-phase biological reactor for creosote-contaminated soil. Volume 1
The report documents a pilot-scale test of a slurry-phase biological reactor for treatment of creosote-contaminated soil. The technology used was a reactor system in which an aqueous slurry of soil was mixed with appropriate nutrients and seeded with micro-organisms to enhance the biodegradation process. In the 12-wk study, a creosote-contaminated soil from the Burlington Northern Superfund Site in Brainerd, MN, was used to test the slurry-phase reactors. The results of a previously-performed bench-scale study were used to optimize a pilot-scale reactor system. Each reactor contained 64 l of 30% slurry (soil: water, w/v). The pilot-scale phase utilized an inoculum of indigenous polynuclear aromatic hydrocarbon (PAH) degraders (9.3 x 10 to the 7th power CFU/g of soil), an inorganic nitrogen supplement in the form of NH4(-N), and a media broth containing potassium, phosphate, magnesium, calcium, and iron. The reduction of total PAHs exceeded 87%. The report presents detailed information concerning the operation, sampling and analysis, and results achieved with the pilot-scale slurry-phase bioremediation system.
- Research Organization:
- IT Corp., Cincinnati, OH (United States)
- OSTI ID:
- 6142838
- Report Number(s):
- PB-93-205532/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-)
ALKALI METALS
ALKALINE EARTH METALS
AROMATICS
BENCH-SCALE EXPERIMENTS
BIOCONVERSION
BIODEGRADATION
BIOREACTORS
CALCIUM
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
CONTAMINATION
COST BENEFIT ANALYSIS
CREOSOTE
DECOMPOSITION
DEMONSTRATION PROGRAMS
DISPERSIONS
ECONOMIC ANALYSIS
ECONOMICS
ELEMENTS
FUNCTIONAL MODELS
HALOGEN COMPOUNDS
HYDROCARBONS
INORGANIC COMPOUNDS
IRON
LAWS
MAGNESIUM
MANAGEMENT
METALS
MIXTURES
NITROGEN
NONMETALS
NUTRIENTS
OPTIMIZATION
ORGANIC COMPOUNDS
PILOT PLANTS
POLLUTION LAWS
POLYCYCLIC AROMATIC HYDROCARBONS
POTASSIUM
PROCESSING
REMEDIAL ACTION
SAMPLING
SLURRIES
SOILS
SUSPENSIONS
TECHNOLOGY ASSESSMENT
TRANSITION ELEMENTS
US SUPERFUND
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING