Record Display for the EPA National Library Catalog

RECORD NUMBER: 18 OF 54

Main Title Field-Scale Testing of a Two-Stage Bioreactor for Removal of Creosote and Pentachlorophenol from Ground Water: Chemical and Biological Assessment.
Author Middaugh, D. P. ; Lantz, S. E. ; Heard, C. S. ; Mueller, J. G. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;SBP Technologies, Inc., Gulf Breeze, FL.
Publisher c15 Nov 93
Year Published 1993
Report Number EPA/600/J-94/279;
Stock Number PB94-191053
Additional Subjects Water pollution control ; Bioreactors ; Wood preservatives ; Superfund ; Creosote ; Phenols ; Ground water ; Water treatment ; Remedial action ; Hazardous materials ; Field tests ; Technology innovation ; Polycyclic aromatic hydrocarbons ; Pseudomonas ; Toxicity ; Reprints ; PCP(Pentachlorophenol) ; Pensacola(Florida) ; SITE(Superfund Innovative Technology Evaluation)
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NTIS  PB94-191053 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Abstract
A two-stage, field-scale bioreactor system was used to determine the efficacy of bioremediation of creosote- and pentachlorophenol (PCP)- contaminated ground water at the abandoned American Creosote Works (ACW) site in Pensacola, Florida. In separate 15-day runs of the field-scale (454L) system, bioreactor performance in the presence of specially-selected microbial inoculants was compared to that observed using non-specific biomass. Results obtained with specialty organisms in the first run of the field-scale bioreactor showed that, on average, 70.6% of polycyclic aromatic hydrocarbons (PAHs) and heterocycles were degraded. Only 36.9% of the pentachlorophenol (PCP) present was biodegraded. In the second run, microorganisms from an industrial waste water treatment facility averaged 51.0% biodegradation of PAHs and heterocycles. Degradaton of PCP was 81.0%, a value substantially higher than in the first run. Reductions in toxicity/teratogenicity were also observed for effluent from the second run of the field-scale bioreactor but the magnitude of toxicity reduction was less than in the first run.