||Removal of creosote from soil by bioslurry reactors /
Lauch, Richard P. ;
Herrmann, J. G. ;
Mahaffey, W. R. ;
Jones, A. B. ;
||IT Environmental Programs, Inc., Cincinnati, OH. ;International Technology Corp., Cincinnati, OH. ;ECOVA Corp., Redmond, WA.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Health Effects Research Laboratory,
Waste treatment ;
Aromatic polycyclic ;
Biological waste treatment ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||32 pages ; 28 cm
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.
Includes bibliographical references. "EPA/600/A-92/188"--Cover. "Presented at the AIChE Spring National Meeting New Orleans, Louisiana, March 29-April 2, 1992." "April 1992." Microfiche.