新型滴滤式生物阴极微生物燃料电池的性能研究  

Performance of Novel Trickling Biocathode Microbial Fuel Cell

作　　者：曹新[1,2] 邵林广[1] 梁鹏[2] 黄霞[2] 

机构地区：[1]武汉科技大学城市建设学院 [2]清华大学环境学院环境模拟与污染控制国家重点联合实验室

出　　处：《中国给水排水》2012年第9期40-43,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2009AA06Z306)

摘　　要：设计了新型滴滤式生物阴极微生物燃料电池(MFC),考察了其产电及污水净化特性。滴滤式MFC阴极的充氧效果良好,稳定产电的电流密度高达39 A/m3,最佳阴极循环流量为120 mL/min,此时最大功率密度为91.2 W/m3。滴滤式MFC可以实现阳极除碳、阴极硝化,对COD和NH4+-N的去除率分别为72.8%和98.7%,且阴极的硝化过程在一定程度上缓解了阴极pH值的升高。滴滤式MFC能够在无机械曝气的条件下维持产电和净化污水效能,其低能耗的特点为MFC的实际应用提供了一种新的解决方案。A novel microbial fuel cell （MFC） based on trickling aeration at the biocathode was designed. The performance of electricity production and wastewater purification of the MFC was investiga- ted. The trickling cathode could provide sufficient aeration and stable electricity production with current density as high as 39 m/m3. The maximal power density of 91.2 W/m3 was achieved at the optimal circu- lating flow rate of bioeathode （ 120 mL/min）. The removal of carbon at the anode and nitrification at the biocathode could be achieved. The removal rates of COD and NH4 - N were 72.8% and 98.7% respec- tively. Nitrification at the bioeathode relieved the increase in cathode pH to a certain extent. Because MFC could maintain stable electricity production and sewage purification without mechanical aeration, the energy-efficient technology may be considered for broad applications.

关 键 词：微生物燃料电池 生物阴极 滴滤充氧 

分 类 号：X703[环境科学与工程—环境工程]