电极对微生物燃料电池同时处理有机废水和含铜重金属废水产电性能的影响

doi:10.16085/j.issn.1000-6613.2015.04.044

化工进展 ›› 2015, Vol. 34 ›› Issue (04): 1152-1158,1170.DOI: 10.16085/j.issn.1000-6613.2015.04.044

电极对微生物燃料电池同时处理有机废水和含铜重金属废水产电性能的影响

印霞棐, 刘维平

江苏理工学院化学与环境工程学院, 江苏常州 213000

收稿日期:2014-09-02 修回日期:2014-10-06 出版日期:2015-04-05 发布日期:2015-04-05
通讯作者: 刘维平,教授,主要从事环境生物技术研究.E-mail weiping@jsut.edu.cn.
作者简介:印霞棐(1990—),女,硕士研究生,主要从事环境生物技术研究.
基金资助:
江苏省自然科学基金项目(BK20131133).

The effects of electrode on the electricity generating capacity of microbial fuel cell in the treatment of organic wastewater and copper-contained heavy metal wastewater

YIN Xiafei, LIU Weiping

School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213000, Jiangsu, China

Received:2014-09-02 Revised:2014-10-06 Online:2015-04-05 Published:2015-04-05

摘要/Abstract

摘要： 实验以有机废水为阳极底物,以活性污泥中的混合菌为阳极接种微生物,以含铜废水为阴极液,构建双室MFC,探讨电极对MFC同时处理有机废水和含铜重金属废水产电性能的影响.结果表明:MFC对阳极有机废水COD的去除率最高为79.1%,对阴极液中Cu²⁺的去除率最高为95.6%.活性炭/石墨棒电极MFC产电性能最优,开路电压最高为800mV,是石墨棒电极MFC的1.25倍,是活性炭/碳纸电极MFC的1.3倍,是碳纸电极MFC的1.5倍.当电极距离为2cm时,MFC开路电压580mV,内阻为181Ω,产电性能最优.电极表面积为75cm²时,MFC的开路电压470mV,是电极表面积为50cm²的MFC的1.1倍,是电极表面积为30cm²的MFC的2.1倍.当A_An/A_cat=0.4时MFC产能最佳,MFC的开路电压最高为600mV,最大功率密度48.2mW/m².

关键词: 微生物燃料电池, 电极材料, 电极距离, 电极表面积, 产电性能, 废水处理

Abstract: This research usedorganic wastewater as anode substrate,mixed bacteria in activated sludge as anode microbial inoculation,and copper-contained wastewater as catholyte. Double chamber microbial fuel cells(MFCs)were constructed. The effects of electrode on the electricity generation capacity of MFC and treatment of organic wastewater and heavy-metal wastewater containing copper simultaneously were studied. The results show that the removal rate of COD could reach 79.1% and the removal rate of Cu²⁺ of catholyte could reach 95.6%. The electricity production of MFC which using activated carbon/graphite rod as electrode is optimal and its open circuit voltage could up to 800mV,which was 1.25 times that of MFC using graphite rod as electrode,1.3 times that of MFC using activated carbon/carbon paper as electrode,1.5 times that of MFC using carbon paper as electrode. When the electrode distance of MFC was 2cm,the open circuit voltage could up to 580mV and the internal resistance was 181Ω,the power generation is optimal. When electrode surface area was 75cm²,the open circuit voltage of MFC could up to 470mV,which was 1.1 times that of 50cm² electrode surface area MFC,2.1 times that of 30cm² electrode surface area MFC. The capacity of MFC would reach its optimal performance when A_An/A_cat=0.4,the maximum open circuit voltage was 600mV,the maximum power density was 48.2mW/m².

Key words: microbial fuel cell(MFC), electrode materials, electrode distance, electrode surface area, electricity production, wastewater treatment

中图分类号:

X789

印霞棐, 刘维平. 电极对微生物燃料电池同时处理有机废水和含铜重金属废水产电性能的影响[J]. 化工进展, 2015, 34(04): 1152-1158,1170.

YIN Xiafei, LIU Weiping. The effects of electrode on the electricity generating capacity of microbial fuel cell in the treatment of organic wastewater and copper-contained heavy metal wastewater[J]. Chemical Industry and Engineering Progree, 2015, 34(04): 1152-1158,1170.

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电极对微生物燃料电池同时处理有机废水和含铜重金属废水产电性能的影响

The effects of electrode on the electricity generating capacity of microbial fuel cell in the treatment of organic wastewater and copper-contained heavy metal wastewater

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