Abstract: Biological activated carbon (BAC) was applied to microbial fuel cells (MFCs) for improving the electricity generation performance. Three MFCs with different sizes of BAC or without BAC in the anode chamber were tested for comparison. In the period of MFC start-up，charcoal carbons were added to the anode chamber，when microorganisms would be domesticated in the charcoal carbon forming a biological film，namely BAC，for assisting anode to enrich more microorganisms. Experimental results proved that the grain BAC is of benefit to the electricity generation performance of MFC. The maximal volume power density of MFC with grain BAC attained 1540 mW/m³ and the removal rate of COD reached to 88%.

摘要： 通过比较三组微生物燃料电池（MFC）的产电性能，考察使用生物活性炭（BAC）对提高MFC产电性能所起的作用。它们分别是：在阳极室内未投加活性炭的、投加了柱状活性炭的和投加了小颗粒活性炭的3种MFC。投加时机是在电池启动阶段，此时微生物在活性炭上驯化出生物膜，即形成生物活性炭，目的是辅助阳极富集更多微生物。结果表明，投加了小颗粒活性炭的MFC在产电性能和污水处理上具有优势。该电池最大容积功率密度达到1540 mW/m³ ，COD去除率达到了88%。