Abstract:
:Aerobic biodegradation of crude oil and its pathways were investigated via in vitro culture and GC-MS analysis in water flooding wells of Dagang oil field. The in vitro aerobic culture lasted 90 days when 99.0% of n-alkanes and 43.03-99.9% of PAHs were degraded and the biomarkers and their ratios were changed. The spectra of components in the residual oil showed the similar biodegradation between aerobic process of 90 days and degradation in reservoir which may last for some millions years, and the potential of serious aerobic biodegradation of petroleum in reservoir. 24 Metabolites compounds were separated and identified from aerobic culture, including fatty acid, naphthenic acid, aromatic carboxylic acid, unsaturated acid, alcohols, ketones and aldehydes. The pathways of alkanes and aromatics were proposed, which suggests that oxidation of hydrocarbon to organic acid is an important process in the aerobic biodegradation of petroleum.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Cai M,Yao J,Yang H,Wang R,Masakorala Kdoi
10.1016/j.biortech.2013.06.082subject
Has Abstractpub_date
2013-09-01 00:00:00pages
100-6eissn
0960-8524issn
1873-2976pii
S0960-8524(13)01001-8journal_volume
144pub_type
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