Performance of microbial fuel cell in response to change in sludge loading rate at different anodic feed pH

被引:152
作者
Behera, Manaswini [1 ]
Ghangrekar, M. M. [1 ]
机构
[1] Indian Inst Technol, Dept Civil Engn, Kharagpur 721302, W Bengal, India
关键词
Electroactive biofilm and bacterial aggregates; Feed pH; Microbial fuel cell; Power density; Sludge loading rate; WASTE-WATER TREATMENT; PROTON-EXCHANGE MEMBRANE; ELECTRICITY-GENERATION; POWER-GENERATION; MEDIATOR-LESS; MFC; MICROENVIRONMENT; CONFIGURATION; TECHNOLOGY; EFFICIENCY;
D O I
10.1016/j.biortech.2009.05.020
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Performance of two dual chambered mediator-less microbial fuel cells (MFCs) was evaluated at different sludge loading rate (SLR) and feed pH. Optimum performance in terms of organic matter removal and power production was obtained at the SLR of 0.75 kg COD kg VSS-1 d(-1). Maximum power density of 158 mW/m(2) and 600 mW/m(2) was obtained in MFC-1 (feed pH 6.0) and MFC-2 (feed pH 8.0), respectively. Internal resistance of the cell decreased with increase in SLR. When operated only with biofilm on anode, the maximum power density was 109.5 mW/m(2) in MFC-1 and 459 mW/m(2) in MFC-2, which was, respectively, 30% and 23.5% less than the value obtained in MFC-1 and MFC-2 at SLR of 0.75 kg COD kg VSS-1 d(-1). Maximum volumetric power of 15.51 W/m(3) and 36.72 W/m(3) was obtained in MFC-1 and MFC-2, respectively, when permanganate was added as catholyte. Higher feed pH (8.0) favoured higher power production. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5114 / 5121
页数:8
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