SMFC处理不同浓度垃圾渗滤液的效果及产电性能

Electricity generation and treatment of landfill leachate under different concentration using SMFC

构建沉积型微生物燃料电池(SMFC),并考察不同渗滤液浓度条件下SMFC的降解效果及产电性能。结果表明:高、低渗滤液浓度条件下SMFC对污染物质均有较好的去除能力,COD去除率分别为95%,79%,氨氮降解率分别为81%,72%;厌氧污泥中挥发性悬浮固体去除率分别为19.6%,16.4%;稳定运行时,SMFC产电均呈周期性变化,最高输出电压分别为0.261,0.078 V(外阻为1 000Ω),功率密度分别为10.35,0.204 m W/m2。因此,SMFC可实现对垃圾渗滤液的除污产电一体化,且高浓度渗滤液条件下SMFC具有更好的运行效果及产电性能。

Sedimentary-type microbial fuel cells （SMFCs） were constructed by landfill leachate and sedimentary anaerobic sludge as fuel, to investigate electricity generating performance of the two different SMFCs and the removals of landfill leachate. The results showed that SMFCs had good removal effect of the pollutant. The average removal efficieneies of COD were 95% ,79%,and ammonia removal efficiencies were 81% ,72% ,respectively. The VSS removal efficieneies of anaerobic sludge were19.6%,16.4%, respectively. During stable operation stage, the production of electrical of SMFCs were in cyclical changes, the highest output voltage were 0.261, 0.078 V （external resistancel 000 Ω）, respectively, and the highest power density were 10.35 mW/m^2, 0.204 mW/m^2, respectively. Therefore, SMFCs could achieve the pollutant removal and electricity generation of landfill leachate at the same time,and the high concentration of leachate SMFC decontamination had good effect of operation performance and electricity generation.