共基质对人工湿地型微生物电池脱色染料并产电的影响  

Effects of Co-substrates on Simultaneous Decolorization of Azo Dye and Bioelectricity Generation in Microbial Fuel Cell Coupled Constructed Wetland

作　　者：程思超 方舟[1] 李薛晓 李先宁[1,2] Cheng Sichao Fang Zhou Li Xuexiao Li Xianning(School of Energy and Environment, Southest University Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Southest University, Nanjing 210096, China)

机构地区：[1]东南大学能源与环境学院,江苏南京210096 [2]东南大学环境医学工程教育部重点实验室,江苏南京210096

出　　处：《水处理技术》2016年第10期44-48,57,共6页Technology of Water Treatment

基　　金：国家自然科学基金(21277024)

摘　　要：在人工湿地型微生物燃料电池中(CW-MFC)选取葡萄糖、乙酸钠及淀粉作为活性红(X-3B)的共基质,研究了CW-MFC中不同共基质对于X-3B的脱色率、脱色产物降解、阳极微生物和产电的影响。结果表明,以葡萄糖为共基质的CW-MFC对X-3B的脱色及产电性能均优于以乙酸钠和淀粉为共基质的CW-MFC,其脱色率达到95.51%,且能继续降解脱色产物,产电菌为阳极优势菌种,电压为604 m V,功率密度137.3 m W/m^3,库伦效率1.22%。CW-MFC中投加不同共基质,不仅影响对偶氮染料的脱色,且对于脱色产物的进一步降解有显著影响,并通过对阳极微生物的作用影响了系统的产电性能。Glucose, Sodium acetate and starch were selected as the co-substrates of reactive brilliant red X-3B（X-3B） in microbial fuel cell coupled constructed wetland（CW-MFC）.The effects of co-substrates on X-3B decolorization performance, degradation of decolorizing products, microbial in anode and electricity production in MFC were evaluated. The results showed that the glucose was the best co-substrate for CW-MFC. The decolorizing efficiency of glucose CW-MFC reached 95.51%, and decolorizing products could be further degradated in the CW-MFC. The dominant species in anode were electrogenic bacteria. The voltage, power density and coulomb efficiency could reach 604 m V, 137.3 m W/m^3, and 1.22%, respectively. Co-substrates not only had an impact on the decolorization performance and the further degradation of decolorizing products, but also affected the performance of electricity production through the anode microbes.

关 键 词：微生物燃料电池 共基质 偶氮染料 脱色降解 产电 

分 类 号：X703.1[环境科学与工程—环境工程]