Effects of electrode surface area on the performance of microbial fuel cells with the aging landfill leachate as substrate

CHENG Li-yu; XU Long-jun

Volume 43 Issue 08

Aug. 2015

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CHENG Li-yu, XU Long-jun. Effects of electrode surface area on the performance of microbial fuel cells with the aging landfill leachate as substrate[J]. Journal of Fuel Chemistry and Technology, 2015, 43(08): 1011-1017.

Citation:

CHENG Li-yu, XU Long-jun. Effects of electrode surface area on the performance of microbial fuel cells with the aging landfill leachate as substrate[J]. Journal of Fuel Chemistry and Technology, 2015, 43(08): 1011-1017.

Citation:

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Effects of electrode surface area on the performance of microbial fuel cells with the aging landfill leachate as substrate

State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China

Received Date: 2015-02-02
Rev Recd Date: 2015-04-08
Publish Date: 2015-08-30

Abstract

Abstract

Bio-cathode microbial fuel cells (MFCs) were built to treat the aging landfill leachate; the effect of electrode surface area on the aging landfill leachate treatment and electrical performance of MFCs was investigated. The results show that for three sets of bio-cathode MFCs with the ratios of anode area to cathode area being 1:2, 2:2 and 2:1, the stable maximum output voltages are 408, 452 and 396mV, respectively, with the maximum electric power density of 145.73, 237.65 and 136.50mW/m³, the resistance of 350, 200 and 400Ω, and COD removal rate of 21.18%, 20.20% and 22.31%, respectively. After running for 30 days, the concentration of ammonia, nitrate and nitrite nitrogen in landfill leachate is decreased; the ammonia removal rates for the three sets of MFCs are 80.88%, 73.61% and 66.17%, respectively, which is related to the electricity generation of MFCs.
- microbial fuel cell,
- aging landfill leachate,
- electrode area,
- electricity generation

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References

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