On-site engineering report of the slurry-phase biological reactor for pilot-scale testing on contaminated soil

Technical Report · Thu Apr 01 04:00:00 EST 1993

OSTI ID:6547139

Dosani, M; Hessling, J; Smith, M L; Jones, A; Mahaffey, W R

A pilot-scale test of the slurry-phase bioremediation technology was performed by ECOVA Corporation (ECOVA) at the U.S. EPA Test and Evaluation (T E) facility from May 8 through July 10, 1991 (12 weeks). The slurry-phase bioreactors were tested on a creosote-contaminated soil from the Burlington Northern Superfund Site in Brainerd, Minnesota. The results of the bench-scale study (performed by ECOVA prior to the pilot-scale study) were used to optimize a pilot-scale bioreactor system containing 64 liters of 30 percent 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 per gram of soil), an inorganic nitrogen supplement in the form of NH(4-)N, and a media broth containing potassium, phosphate, magnesium, calcium, and iron to achieve an overall reduction. During the study, levels of soil-bound and liquid-phase PAHs, total petroleum hydrocarbons (TPHs), nutrients, pH, dissolved oxygen, temperature, toxicity, and microbial activity were monitored.

• Research Organization: IT Environmental Programs, Inc., Cincinnati, OH (United States)
• OSTI ID: 6547139
• Report Number(s): PB-93-178259/XAB; CNN: EPA-68-C9-0036
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540250 -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ALKALI METALS
ALKALINE EARTH METALS
AROMATICS
BIODEGRADATION
BIOREACTORS
CALCIUM
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CLEANING
CREOSOTE
DATA
DECOMPOSITION
DECONTAMINATION
DEVELOPED COUNTRIES
DISPERSIONS
DISSOLVED GASES
ELEMENTS
ENGINEERING
EVALUATION
FLUIDS
FUNCTIONAL MODELS
GASES
HYDROCARBONS
INFORMATION
LAWS
LIQUID WASTES
MAGNESIUM
METALS
MICROORGANISMS
MINIMIZATION
MINNESOTA
MIXTURES
NATIONAL ORGANIZATIONS
NITROGEN
NONMETALS
NORTH AMERICA
NUMERICAL DATA
NUTRIENTS
OPTIMIZATION
ORGANIC COMPOUNDS
OXYGEN
PH VALUE
PILOT PLANTS
POLLUTION LAWS
POLYCYCLIC AROMATIC HYDROCARBONS
POTASSIUM
REMEDIAL ACTION
SLURRIES
SOILS
SOLID WASTES
SOLUTES
STATISTICAL DATA
SUSPENSIONS
TECHNOLOGY ASSESSMENT
TOXICITY
US EPA
US ORGANIZATIONS
US SUPERFUND
USA
WASTES