Research On Electricity Performance Of Anaerobic Fluidized Bed Microbial Fuel Cells

In recent years, the microbial fuel cell technology has made a breakthrough andbecame a new concept of wastewater treatment. In this study, the liquid-solidanaerobic fluidized bed (AFB) process was combined with the microbial fuel celltechnology. The feasibility and impact factors of fuel cells were investigated.Wastewater was treated efficiently and electricity is outputted by making use ofmicrobial.Firstly, the characteristics of the anaerobic fluidized bed were studied by using theCoconut shell activated carbon as the material and water at room temperature asstreaming media. The effects of different particle size and liquid level on thefluidization were explored.Inside the liquid-solid anaerobic fluidized bed single-chamber membrane air-cathode microbial fuel cell (0.032m in diameter,0.6m in diameter). Sewage andcoconut shell activated carbon were the liquid and solid phase, under the conditions ofthe inoculation of anaerobic sludge, the impact of flow state on the performance ofelectricity generation is studied. The results show that, the voltage of triple series isabout2100mV, which is equal to the total of three single batteries. And the maximumpower of triple series is0.12mW, while it is0.05mW of the single fuel cell. In parallel,the total voltage is800mV, and the electric current is double of single fuel cell. Moreover,the voltage was raised of30%when double the area of anode. The electricity generationcan be increased with increasing the filling volume of activated carbon. The maximumvoltage of the fuel cell will be seen when the temperature is40℃.Glucose as the research object, the Monod equation and power rate model werecompared and tested with experimental data. In order to depth study of the microbialdegradation kinetics. The results showed that the power rate model can be fit close withexperimental data. The kinetic equation is: S0.673=98.88-0.0774t.