Fenton oxidation of ethanol-washed distillation-concentrated benzo(a)pyrene: reaction product identification and biodegradability.
Water Res
; 35(9): 2314-9, 2001 Jun.
Article
em En
| MEDLINE
| ID: mdl-11358313
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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Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Benzo(a)pireno
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article