||Technology Evaluation Report: Pilot-Scale Demonstration of a Slurry-Phase Biological Reactor for Creosote-Contaminated Soil. Volume 1.
Donsani, M. ;
||IT Corp., Cincinnati, OH.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Biological treatment ;
Waste treatment ;
Waste disposal ;
Chlorine organic compounds ;
Aromatic polycyclic hydrocarbons ;
Bench-scale experiments ;
Nitrogen inorganic compounds ;
Cost effectiveness ;
Remedial action ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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.
||See also PB92-129683. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
||68C; 71R; 57K
||PC A09/MF A02