天津工业大学学报2016，Vol.35Issue(6)：55-60,6.DOI:10.3969/j.issn.1671-024x.2016.06.010
进水COD浓度对基于MFC的UASB生物传感器反馈性能的影响
Influence of COD conditions on feedback characteristics of upflow anaerobic sludge bed reactor biosensor based on microbial fuel cell
摘要
Abstract
The performance of electrical signal feedback of microbial fuel cell (MFC)-based biosensor in different COD condition was explored. The effect of pH on the feedback of MFC-based biosensor was studied by comparing the feedback time between the different COD condition. Results showed that the linear correlation between voltage and COD concentration was established. The feedback time was 4 h and the voltage increased linearly by y =3.83×10-5x+0.25 with COD from 1 000 mg/L to 3 000 mg/L. The feedback time delayed to 8.6 h and pH declined to 4.6 simultaneously according to the accumulation of volatile fatty acid in the reactor with COD concentration and the voltage decreased linearly by y=-5.95×10-5x+0.54 with COD increasing from 4 000 mg/L to 6 000 mg/L. In consequence, the activity of electrogenesis microorganism decreased and the electron transfer rate was re-strained due to the acidic of this system. The feedback time of the MFC-based biosensor was put off as a result.关键词
升流式厌氧污泥床(UASB)/微生物燃料电池/生物传感器/反馈时间/pHKey words
upflow anaerobic sludge blanket(UASB)/microbial fuel cell(MFC)/biosensor/feedback time/pH分类
信息技术与安全科学引用本文复制引用
贾辉,杨光,房宏艳,王捷,何志超..进水COD浓度对基于MFC的UASB生物传感器反馈性能的影响[J].天津工业大学学报,2016,35(6):55-60,6.基金项目
国家自然科学基金面上项目（51378349）；天津市科技计划项目 （）
