Degradation of pyrene using single-chamber air-cathode microbial fuel cells: Electrochemical parameters and bacterial community changes.
Pyrene, a typical four-ring polycyclic aromatic hydrocarbon, is abundantly present in the environment and is potentially harmful to the human body. In this study, single-chamber air-cathode microbial fuel cells (MFCs) were used to treat pyrene, and the ensuing degradation, electrical parameters, and microbial changes were analyzed. The results showed that MFCs could degrade pyrene, and the maximum degradation rate for 30 mg/L reached 88.1 ± 5.4%. The addition of pyrene reduced the electrical performance of the MFCs and suppressed the power output. Analysis of the anodic microbial community showed that the proportion of Alcaligenes and Stenotrophomonas increased with an increase in pyrene concentration, which may explain the high degradation rate of pyrene.
['Wang|Haonan|H|', 'Chen|Peng|P|', 'Zhang|Shixuan|S|', 'Jiang|Jiwei|J|', 'Hua|Tao|T|', 'Li|Fengxiang|F|']
D001419:Bacteria D001674:Bioelectric Energy Sources D004560:Electricity D004566:Electrodes D006801:Humans D011721:Pyrenes
Pyrene Microbial fuel cells Polycyclic aromatic hydrocarbons Biodegradation Bioelectrochemical systems