alexa Biodegradation of phenanthrene in soil-slurry systems with different mass transfer regimes and soil contents.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Woo SH, Lee MW, Park JM

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Abstract The effect of soil contents and mass transfer rates on soil bioremediation was investigated. Phenanthrene, a 3-ring polycyclic aromatic hydrocarbon (PAH), was chosen as a model target compound. The biodegradation tests were performed in soil-slurry systems at two distinct mass transfer rates: fast in flasks tests at 150 rpm and slow in roller-bottle tests at 2 rpm. The rate of phenanthrene biodegradation was similar at low soil content (2 wt.\%) in both slurry systems, but the rates at high soil contents (6 and 18 wt.\%) were higher in the roller-bottle tests. The maximum utilization rate constant for sorbed-phase biodegradation obtained from curve fitting using a mathematical model was decreased in the flask tests with increasing soil content, while not decreased in the roller-bottle tests. Copyright 2004 Elsevier B.V. This article was published in J Biotechnol and referenced in Journal of Bioremediation & Biodegradation

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