【摘要】 针对填料型微生物燃料电池(PMFC)集电不足的情况,利用钛网作为集电体,比较不同集电方式(外侧、内侧、双侧)下PMFC的产电性能,其最大功率密度分别为9、13、20 W/m3。PMFC分层放电的平均功率密度比并联放电的高5%～16%。进水流向(并流向上、错流、并流向下)对PMFC下层、中层、上层产电的影响不同,下层的产电性能随进水方式的变化最明显,而进水方式对上层与中层产电性能的影响较小,PMFC不同集电层产电的差异主要受进水基质浓度和压力的影响。更多还原

【Abstract】 Titanium mesh was used to collect current more effectively in packing-type microbial fuel cell(PMFC),and the power productions of PMFCs with different current collecting methods(outside,inside and two sides connection) were compared.The results showed that the maximum power densities of the three methods were 9 W/m3,13 W/m3 and 20 W/m3,respectively.Stratified operation obtained 5% to 16% higher average power density than parallel operation in the PMFC.Regarding the influence of water flow direction(up-flow,cross flow and down-flow),the performance of the lower layer was significantly influenced,while those of the upper and middle layers showed much smaller change.The performance difference of the layers in PMFCs was mainly caused by the substrate concentration and pressure between the electrode and the mesh.更多还原