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Updated: Oct 7, 2026

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Fenton oxidation of ethanol-washed distillation-concentrated benzo(a)pyrene: reaction product identification and
1Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan. leebd@cc.tuat.ac.jp
Abstract:
After multiple ethanol washings followed by distillation, concentrated benzo(a)pyrene (B(a)P) in ethanol (approximately 85 mg L(-1)) was treated by Fenton oxidation, where > 99.8% of B(a)P was removed under a pseudo-first-order reaction. GC-MS and HPLC analysis identified B(a)P-1,6-, -3,6-, and -6,12-dione as Fenton oxidation products; all of which are known to have lower toxicity than B(a)P. Microbial resistance experiments demonstrated that B(a)P-1.6-, -3.6-, and -6,12-dione are more easily degraded than B(a)P. These results indicate that the proposed treatment can be effectively applied to remediate B(a)P-contaminated soil.
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