Biodegradation of Three- and Four-Ring Polycyclic Aromatic Hydrocarbons under Aerobic and Denitrifying Conditions

PAHs are thought to be particularly persistent in environments where anaerobic conditions exist. This study presents evidence for the biodegradation of three- and four-ringed PAHs (anthracene, phenanthrene, and pyrene) under strict anaerobic, denitrifying conditions. Three pseudomonad strains, isola...

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Bibliographic Details
Published in:Environmental science & technology 1998-09, Vol.32 (17), p.2633-2639
Main Authors: McNally, Dan L, Mihelcic, James R, Lueking, Donald R
Format: Article
Language:English
Subjects:
Anaerobic digestion
Aromatic hydrocarbons
Biodegradation
Biodegradation of pollutants
Biological and medical sciences
Biotechnology
Decomposition
Denitrification
Environment and pollution
Environmental impact
Environmental protection
Fundamental and applied biological sciences. Psychology
Hydrocarbons
Industrial applications and implications. Economical aspects
Nitrates
Nitrogen
Removal
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Summary:PAHs are thought to be particularly persistent in environments where anaerobic conditions exist. This study presents evidence for the biodegradation of three- and four-ringed PAHs (anthracene, phenanthrene, and pyrene) under strict anaerobic, denitrifying conditions. Three pseudomonad strains, isolated from contrasting environments, were used in this study. All three strains were known PAH degraders and denitrifiers. Degradation proceeded to nondetectable levels (
ISSN:0013-936X
1520-5851
DOI:10.1021/es980006c