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http://dx.doi.org/10.5668/JEHS.2011.37.2.159

Cleanup of Fluorene-Contaminated Soil by Continuous Chemical and Biological Treatment  

Lee, Byung-Dae (Department of Health, Uiduk University)
Publication Information
Journal of Environmental Health Sciences / v.37, no.2, 2011 , pp. 159-164 More about this Journal
Abstract
We describe a method for effectively pretreating soil highly that has been contaminated with fluorene (${\gg}$ 120 mg/kg soil), i.e., we apply Fenton oxidation in which ethanol is added to increase fluorene removal. To obtain maximum fluorene removal efficiency, a minimum of 1.0 ml of ethanol, 0.35 ml of $H_2O_2$, and 0.2 ml of 0.5M $Fe^{2+}$ was needed per 1 g of fluorene-contaminated soil. Under optimal Fenton oxidation conditions, 13% of 9-fluorene was generated during Fenton oxidation of 43% fluorene. The biodegradability of 9-fluorenone was subsequently confirmed to be much more rapid than that of fluorene, i.e., biodegradability of 96% versus 35% over 31 days. These results demonstrate that the proposed treatment method can be effectively applied to remove fluorene prior to disposal at industrial waste sites.
Keywords
Fluorene; Chemical treatment; Biological treatment; Optimal treatment conditions;
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