底物对微生物燃料电池产电性能的影响

doi:10.3969/j.issn.1007-2985.2015.03.017

journal6 ›› 2015, Vol. 36 ›› Issue (3): 77-81.DOI: 10.3969/j.issn.1007-2985.2015.03.017

底物对微生物燃料电池产电性能的影响

滕瑶，王亚光，费讲驰，鲁涛，何则强

(1.吉首大学生物资源与环境科学学院，湖南吉首 416000；2.中南大学冶金与环境学院，湖南长沙 410083)

出版日期:2015-05-25 发布日期:2015-06-03
通讯作者: 何则强（1974—），男，湖南益阳人，吉首大学生物资源与环境科学学院教授，博士，主要从事功能材料和废物资源化利用研究.
作者简介:滕瑶（1988—），女，湖南永顺人，吉首大学生物资源与环境科学学院硕士研究生，主要从事微生物燃料电池研究
基金资助:
国家自然科学基金资助资助项目(51262008，51472107)；湖南省自然科学基金资助项目(12JJ2005)；湖南省科技计划重点资助项目(2012GK2017)；湖南省重点学科建设项目(JSU0713)

Effects of Substrate on the Electricity Generation Characteristics of Microbial Fuel Cell

TENG Yao, WANG Ya-Guang, FEI Jiang-Chi, LU Tao, HE Ze-Qiang

(1.College of Biology and Environmental Science,Jishou University,Jishou 416000,Hunan China；2.School of Metallurgy and Environment,Central South University,Changsha 410083,China)

Online:2015-05-25 Published:2015-06-03

摘要/Abstract

摘要：在自行构建的“H”型双室微生物燃料电池（MFC）中，以湖南省吉首市大田湾污水处理厂曝气池中的污泥为接种污泥，以可溶性淀粉和白糊精为底物，考察不同底物及其质量浓度对MFC获得稳定开路电压所需时间、启动时间、电动势、内阻及功率密度等性能的影响.实验结果显示，在同样的条件下，以白糊精为底物的MFC启动快、内阻小、功率密度较小，而以可溶性为底物的MFC启动慢、内阻大、功率密度大；底物质量浓度低于6 g/L时，以可溶性淀粉为底物的MFC达到稳定开路电压的时间随质量浓度增大而增加，底物质量浓度低于8 g/L时，以白糊精为底物的MFC达到稳定开路电压的时间随质量浓度增大而增加.由于底物抑制效应，质量浓度较高时，随着底物质量浓度的增加.MFC达到稳定开路电压所需的时间反而减少.

关键词： 微生物燃料电池, 底物, 产电性能

Abstract: A reaction equipment of microbial fuel cell (MFC) with “H” structure was designed and fabricated.The sludge collected from the aeration tan in Datianwan Sewage Treatment Plant in Jishou was used to inoculate electricigens.The effects of substrate species and concentration on the electricity generation of MFC in view of start-up time,time for obtaining stable open circuit voltage,electromotive force,internal resistance and power density were investigated.Experimental results showed that the substrate species and concentration greatly influenced the electricity generation of MFC probably due to their difference in structure.It was found that the white dextrin-fed MFC could be started up in shorter time with smaller internal resistance,smaller electromotive force and smaller power density.Under the same conditions,the soluble starch-fed MFC had larger electromotive force,larger power density,bigger internal resistance and longer time to be started-up.The results also indicated that an increase in the substrate concentration increased the time for reaching constant OCV at low concentration of 2~6 g/L for soluble starch and 2~8 g/L for white dextrin.While an opposite trend was observed at high concentration of 8~20 g/L for soluble starch and 10~20 g/L for white dextrin attributed to the substrate inhibition effect.

Key words: microbial fuel cell, substrate, electricity generation characteristics

滕瑶, 王亚光, 费讲驰, 鲁涛, 何则强. 底物对微生物燃料电池产电性能的影响[J]. journal6, 2015, 36(3): 77-81.

TENG Yao, WANG Ya-Guang, FEI Jiang-Chi, LU Tao, HE Ze-Qiang. Effects of Substrate on the Electricity Generation Characteristics of Microbial Fuel Cell[J]. journal6, 2015, 36(3): 77-81.

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底物对微生物燃料电池产电性能的影响

Effects of Substrate on the Electricity Generation Characteristics of Microbial Fuel Cell

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