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Notwithstanding the benefits that oil provides as a source of energy, society also recognizes the environmental problems caused by its use. We evaluated eight coastal sites in the central area of the Gulf of Mexico. At these sites, 14 hydrocarbons were detected which belong to compounds formed by carbons ranging from C9 to C27. The hydrocarbons with the highest concentrations were n-nonane (3.07 ± 1.60 mg L −1 ), carbazole (0.93 ± 0.12 mg L −1 ) and benzo [a] pyrene (1.33 ± 0.71 mg L −1 ). The hydrocarbons found belong mostly to medium fraction hydrocarbons, which are mostly found in fuels such as diesel. Therefore, this fuel was used as a carbon source or substrate in bubble column bioreactors. The capacity of non-genetically modified organisms to degrade microbial hydrocarbons was evaluated using a mineral medium for a period of 14 days. Suspended solids increased from 0.8 to 2.94 g L −1 . Diesel consumption was achieved in 12 days of operation.

international journal of chemical reactor engineering

Bubble Column Bioreactor using native non-genetically modified organisms: a remediation alternative by hydrocarbon-polluted water from the Gulf of Mexico