Treatment of PAH-contaminated soil by combination of Fenton's reaction and biodegradation

A combination of modified Fenton and biological treatment was used to remove polycyclic aromatic hydrocarbons (PAHs) from creosote oil‐contaminated soil. After modified Fenton reaction the toxicity of column leachate and soil to Vibrio fischeri increased. The number of intact bacterial cells and uti...

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Bibliographic Details
Published in:Journal of chemical technology and biotechnology (1986) 2006-04, Vol.81 (4), p.598-607
Main Authors: Palmroth, Marja RT, Langwaldt, Jörg H, Aunola, Tuomo A, Goi, Anna, Puhakka, Jaakko A, Tuhkanen, Tuula A
Format: Article
Language:English
Subjects:
Applied sciences
biodegradation
Biological and medical sciences
Biotechnology
Chemical engineering
creosote oil
Decontamination. Miscellaneous
Exact sciences and technology
Fenton
Fundamental and applied biological sciences. Psychology
in situ
Methods. Procedures. Technologies
Others
PAH utilisation assay
Pollution
polycyclic aromatic hydrocarbons
Soil and sediments pollution
Various methods and equipments
Vibrio fischeri
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Summary:A combination of modified Fenton and biological treatment was used to remove polycyclic aromatic hydrocarbons (PAHs) from creosote oil‐contaminated soil. After modified Fenton reaction the toxicity of column leachate and soil to Vibrio fischeri increased. The number of intact bacterial cells and utilisation of PAHs in PAH utilisation microplate assay decreased after modified Fenton reaction. However, bacteria in chemically treated soil utilised PAHs without addition of other carbon sources. The activity of extracellular esterases increased during incubation of modified Fenton‐treated soil. PAH removal in combined chemical oxidation and incubation (43–59%) was higher than in incubation alone (22–30%). Residual H2O2 in soil allowed chemical oxidation of PAHs during incubation. Copyright © 2006 Society of Chemical Industry
ISSN:0268-2575
1097-4660
DOI:10.1002/jctb.1476