Anaerobic biodegradation of naphthalene, phenanthrene, and biphenyl by a denitrifying enrichment culture
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چکیده
منابع مشابه
Anaerobic Naphthalene Degradation by a Sulfate-Reducing Enrichment Culture
Anaerobic naphthalene degradation by a sulfate-reducing enrichment culture was studied by substrate utilization tests and identification of metabolites by gas chromatography-mass spectrometry. In substrate utilization tests, the culture was able to oxidize naphthalene, 2-methylnaphthalene, 1and 2-naphthoic acids, phenylacetic acid, benzoic acid, cyclohexanecarboxylic acid, and cyclohex-1-ene-ca...
متن کاملMultisubstrate biodegradation kinetics of naphthalene, phenanthrene, and pyrene mixtures.
Biodegradation kinetics of naphthalene, phenanthrene and pyrene were studied in sole-substrate systems, and in binary and ternary mixtures to examine substrate interactions. The experiments were conducted in aerobic batch aqueous systems inoculated with a mixed culture that had been isolated from soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Monod kinetic parameters and yield...
متن کاملAnaerobic degradation of the aromatic hydrocarbon biphenyl by a sulfate-reducing enrichment culture.
The aromatic hydrocarbon biphenyl is a widely distributed environmental pollutant. Whereas the aerobic degradation of biphenyl has been extensively studied, knowledge of the anaerobic biphenyl-oxidizing bacteria and their biochemical degradation pathway is scarce. Here, we report on an enrichment culture that oxidized biphenyl completely to carbon dioxide under sulfate-reducing conditions. The ...
متن کاملnitrate-reducing and denitrifying pure cultures. In-Situ and On-Site Bioremediation. 5(8):271-276. NAPHTHALENE DEGRADATION AND MINERALIZATION BY NITRATE-REDUCING AND DENITRIFYING PURE CULTURES
Although most PAHs with fewer than five rings are known to be biodegraded under aerobic conditions, most contaminated sediments and soils are anaerobic. In these environments, aerobic bioremediation may be difficult to implement because of the problems associated with oxygen delivery to the subsurface. With recent results clearly demonstrating some bicyclics and PAHs can be degraded without oxy...
متن کاملBiodegradation of Bicyclic and Polycyclic Aromatic Hydrocarbons in Anaerobic Enrichments
Although many polycyclic aromatic hydrocarbons (PAHs) are known to be biodegraded under aerobic conditions, most contaminated sediments are anaerobic. With recent results demonstrating that some bicyclics and PAHs can be degraded without oxygen, information on specific biodegradation rates and electron acceptor stoichiometry is lacking. A fluidized bed reactor (FBR) enrichment approach was used...
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ژورنال
عنوان ژورنال: Water Research
سال: 2001
ISSN: 0043-1354
DOI: 10.1016/s0043-1354(00)00246-3