Basic performance on electrode interchangeable photosynthetic microbial fuel cells with chlorella vulgaris
Using the photosynthesis and respiration of Chlorella vulgaris,a altemating positive and negative interchangeable algae fuel cell model was built.The relationship between the MFC start-up time,producing electrical performance and fuel (sugar) concentration,temperature and other influencing factors were investigated.Finally,the rationale of the battery capacity motor was discussed.The results show that the MFC is successfully constructed and electricity production.The start-up time was about 400 min.The voltage of MFC kept stable when the reducing suger concentration was in the 4.38 ～ 6.0 g/L.In the range of 45 ～ 50 ℃,the MFC exhibited good performance and the output voltage reached 550 mY.The absolute value of the voltage was cycling trends after several electrode exchange.Carbon felt electrode surface could be seen clearly C.vulgaris biofilms.From this phenomenon,the result of that electrons produced by the biofilm to the cathode electrode was passed directly through the external inferred circuit.Then the oxygen produced by C.vulgaris photosynthesis received electronics.It was suggested that improving the speed of biofilm formation on the electrode surface could be adopted to improve the MFC performance.
国家科技期刊平台
NSTL
万方数据
维普
