Sludge Digestion and Electricity Generation Using an Air-Cathode Single Chamber Microbial Fuel Cell
Using stainless steel wire as anode to build an air-cathode single chamber microbial fuel cell (MFC) without a proton exchange membrane,and using glucose as the sole substrate with an initial chemical oxygen demand (CODcr) concentration of 576mg/L and the external resistance of 1000Ω under room temperature,electricity was generated continuously by the MFC and the highest voltage reached up to 256.16mV,the open circuit voltage was measured at 475.64mV and the internal resistance was about 5827Ω. The MFC achieved a maximum power density of 85.1mW/m2 and coulombic efficiency of 32.4% with the external resistance of 500Ω under the experimental condition. Taking the MFC for the excess sludge treatment comparative experiments,the CODcr removal rate of the MFC reached up to 60% higher than the anaerobic treatment efficiency of about 5%～10%. At the same time,sludge volume and sludge quantity decreased 52.3% and 62.3% respectively,higher than the anaerobic digestion of 19.5% and 28.5%. The voltage of the external resistance of 1000(2 reached up to 172mV meanwhile the MFC achieved the maximum power density of 30.8mW/m2 It indicated that the MFC technology can not only reduce the excess sludge in organic matter and the sludge volume but also obtain power.
Microbial fuel cell anaerobic ezcess sludge sludge digestion electricity production
CUI Kangping WANG Ye WANG Gang LING Chen YANC Changda SUN Shiqun
School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China School of Resources and Environmental Engineering,Hefei University of Technology,Hefei230009,China
国际会议
第二届中国微生物燃料电池研讨会(The 2nd Symposium on Microbial Fuel Cell in China)
北京
英文
89-96
2009-11-13（万方平台首次上网日期，不代表论文的发表时间）