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多环芳烃是我国近岸海域水体和沉积物中需要优先控制的首位有机污染物,喹啉是典型的含氮杂环芳烃,具有较大的毒性、致畸性和潜在的致癌作用。该研究利用填料型MFC对单一喹啉为燃料的产电性能进行了研究。经过6个月利用喹啉和葡萄糖作混合燃料的驯化,MFC中的阳极群落发生了改变,可以利用单一喹啉进行产电,以200 mg/L喹啉为燃料时的最大体积功率密度为2.7 W/m3。在没有外加葡萄糖可能带来的协同共代谢作用下,利用单一喹啉做燃料时,对喹啉在MFC中的降解途径进行了研究。实验结果表明,以喹啉为燃料时,MFC可以在不利用有机物本身作为电子受体的作用下,通过外电路的电子传递完成电子从阳极到阴极的传递而达到相同的目的。
Polycyclic aromatic hydrocarbons (PAHs) are the first organic pollutants that need priority control in the coastal waters of China. Quinoline is a typical nitrogen-containing heterocyclic aromatic hydrocarbon with high toxicity, teratogenicity and potential carcinogenic effects. In this study, the charge-generating MFC with a single quinoline fuel was studied. After six months of domesticated use of quinoline and glucose as a fuel blend, the anodic communities in the MFC were altered to produce electricity using a single quinoline with a maximum volumetric power density of 2.7 at 200 mg / L quinoline as fuel W / m3. The degradation pathway of quinoline in MFC was studied when single quinoline was used as a fuel in the absence of co-metabolism caused by glucose. The experimental results show that when using quinoline as a fuel, MFC can achieve the same goal of electron transfer from anode to cathode without the use of organic compounds as electron acceptors.