一株Nitratireductor sp.WJ5-4的生理生化特性及产电分析  

Study on Physiological and Biochemical Characteristics of Nitratireductor sp. WJ5- 4 and Bioelectricity Generation in Microbial Fuel Cells

作　　者：刘盛萍[1,2] 吴克[2,3] 俞志敏[2,3] 吴晶[4] 

机构地区：[1]合肥学院生物与环境工程系,合肥230601 [2]城市固废处理与资源化利用安徽省工程技术研究中心,合肥230601 [3]合肥环境工程研究院,合肥230601 [4]合肥工业大学资源与环境工程学院,合肥230009

出　　处：《合肥学院学报（自然科学版）》2014年第2期74-80,共7页Journal of Hefei University :Natural Sciences

基　　金：2011年安徽省教育厅自然科学研究项目(KJ2011B138)基金资助

摘　　要：主要研究了n itratireductor sp.WJ5-4的生化特性,并以Nitratireductor sp.WJ5-4为产电菌构建双室盐桥微生物燃料电池.研究微生物燃料电池在葡萄糖不同浓度及不同碳源条件下的降解和产电情况,并通过极化曲线和能量密度曲线表征电池的内阻和产能情况.实验结果表明:Nitratireductor sp.WJ5-4厌氧菌,耐氧性能较差.添加酵母膏作为生长因子能明显促进Nitratireductor sp.WJ5-4生长,最适生长温度为35℃.可利用多种碳源生长,其中利用葡萄糖、乳糖、柠檬酸三铵生长良好.当葡萄糖浓度为11g/L时,输出最大稳定工作电压290mV,具有最大的功率密度96.13mW/m2和较高的CODCr处理效率77.03%.不同碳源为底物时,利用葡萄糖产电,可获得最大功率密度103.84 mW/m2、最大稳定输出电压450mV和最大CODCr处理效率83.60%.Physiological and biochemical characteristics of Nitratireductor sp. WJ5- 4 was studied and two- chamber microbial fuel cells（ MFCs） was constructed using Nitratireductor sp. WJ5- 4 as electricigen bacteria. Degradation and electricity generation was studied through polarization curve and energy density curve under different concentration of glucose and different carbon source. The results showed when the glucose concentration was 11g / L,the maximum stable working voltage was 290mV, power density was 96. 13mW / m2and the removal of CODCrwas up to 77. 03%. when glucose was substrate,power density was 103. 84mW / m2,the maximum voltage was 450mV,and the removal of CODCrwas up to 83. 60%.

关 键 词：微生物燃料电池 Nitratireductor sp.WJ5-4 碳源 产电特性 

分 类 号：X382[环境科学与工程—环境工程]