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Phenol Degradation and Electricity Generation in Microbial Fuel Cell
Author(s): Chen Liuliu, Xu Yuan, Yang Qian, Chen Yingwen, Zhu Shemin, Shen Shubao
Pages: 1-
5
Year: 2015
Issue:
1
Journal: Environmental Protection of Chemical Industry
Keyword: microbial fuel cell; phenol; glucose; substrate; electricity generation performance; anode; biofilm;
Abstract: 构建了单室空气阴极微生物燃料电池(MFC),研究了苯酚含量对以苯酚和葡萄糖为底物的MFC产电性能及苯酚去除率的影响.实验结果表明:当CODB(苯酚贡献的COD)为0时,MFC的运行周期为36 h,最大输出电压为560 mV,最大功率密度为489 mW/m2; CODB为1 000 mg/L时,MFC的运行周期为54 h,最大输出电压为436 mV,最大功率密度为98 mW/m2;当CODB为200 mg/L时,MFC的COD去除率、苯酚去除率和库伦效率(CE)均达到最大,分别为89.7%、99.9%和7.2%,同时,MFC的阳极生物膜产生的氧化峰电流最高,表明在葡萄糖-苯酚双底物对微生物的协同作用下,MFC的阳极生物膜氧化性最强;随着CODB的增大,COD去除率、苯酚去除率和CE均逐渐减小,说明苯酚的抑制作用导致微生物活性降低.
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