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Enhanced degradation of polycyclic aromatic hydrocarbons by biodegradation combined with a modified Fenton reaction

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dc.contributor.authorNam, Kyoungphile-
dc.contributor.authorRodriguez, Wilson-
dc.contributor.authorKukor, Jerome J.-
dc.date.accessioned2009-09-06T22:51:14Z-
dc.date.available2009-09-06T22:51:14Z-
dc.date.issued2001-10-
dc.identifier.citationChemosphere 45, 11-20en
dc.identifier.issn0045-6535-
dc.identifier.urihttp://hdl.handle.net/10371/8717-
dc.description.abstractA study has been conducted to enhance degradation of a mixture of polycyclic aromatic hydrocarbons (PAHs) by combining biodegradation with hydrogen peroxide oxidation in a former manufactured gas plant (MGP) soil. An active bacterial consortium enriched from the MGP surface soil (0-2 m) biodegraded more than 90% of PAHs including 2-, 3-, and 4-ring hydrocarbons in a model soil. The consortium was also able to transform about 50% of 4- and 5-ring hydrocarbons in the MGP soil. As a chemical oxidant, Fenton's reagent (H2O2 + Fe2+) was very efficient in the destruction of a mixture of PAHs (i.e., naphthalene (NAP), fluorene (FLU), phenanthrene (PHE), anthracene (ANT), pyrene (PYR), chrysene (CHR), and benzo(a)pyrene (BaP)) in the model soil; noticeably, 84.5% and 96.7% of initial PYR and BaP were degraded, respectively. In the MGP soil, the same treatment destroyed more than 80% of 2- and 3-ring hydrocarbons and 20-40% of 4- and 5-ring compounds. However, the low pH requirement (pH 2-3) for optimum Fenton reaction made the process incompatible with biological treatment and posed potential hazards to the soil ecosystem where the reagent was used. In order to overcome such limitation, a modified Fenton-type reaction was performed at near neutral pH by using ferric ions and chelating agents such as catechol and gallic acid. By the combined treatment of the modified Fenton reaction and biodegradation, more than 98% of 2- or 3-ring hydrocarbons and between 70% and 85% of 4- or 5-ring compounds were degraded in the MGP soil, while maintaining its pH about 6-6.5.en
dc.description.sponsorshipThis research was supported by a grant (Project SITE-57) from the New Jersey Hazardous Substance Management Research Center. Additional partial support was provided by the National Institute of Environmental Health Sciences through Superfund Basic Research Program grant P42-ES-04911 to JJK.en
dc.language.isoen-
dc.publisherElsevieren
dc.subjectBiodegradationen
dc.subjectChelating agenten
dc.subjectFenton's reagenten
dc.subjectHydrogen peroxide oxidationen
dc.subjectMGP soilen
dc.subjectPolycyclic aromatic hydrocarbonsen
dc.titleEnhanced degradation of polycyclic aromatic hydrocarbons by biodegradation combined with a modified Fenton reactionen
dc.typeArticleen
dc.contributor.AlternativeAuthor남경필-
dc.identifier.doi10.1016/S0045-6535(01)00051-0-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Civil & Environmental Engineering (건설환경공학부)Journal Papers (저널논문_건설환경공학부)
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