Comparative Assessment of Microbial-Fuel-Cell Operating Parameters

被引:6
作者
Anam, Maira [1 ]
Yousaf, Sameen [1 ]
Ali, Naeem [1 ]
机构
[1] Quaid I Azam Univ, Dept Microbiol, Islamabad 45320, Pakistan
关键词
POWER-GENERATION; PERFORMANCE; TEMPERATURE; ELECTRICITY; DIVERSITY;
D O I
10.1061/(ASCE)EE.1943-7870.0001772
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In this paper, simultaneous wastewater treatment and power generation of fed-batch microbial fuel cells (MFCs) have been analyzed by introducing a stepwise variation in temperature, pH, and cathodic electrolyte. Different ranges of operational parameters were applied to enriched biofilm (30 days) for 2 weeks to evaluate system performance through polarization studies and chemical oxygen demand (COD) removal rate. Increasing the electrolyte temperature from 37 degrees C to 45 degrees C resulted in higher voltage output (394.5 +/- 6.1 mV) and increased COD removal efficiency (84.5%). The cell potential of MFCs was also enhanced up to 398.9 mV by optimizing anodic pH to 7. Further increase in the current production (0.04 +/-<= 0.01 mA) was observed with cathodic electrolyte 100 mM phosphate-buffered saline (PBS)+100 mM NaCl of higher reductive strength, primarily as a result of the overcoming system proton transfer limitation. This study provides a detailed parametric analysis of operating parameters and assists in process optimization. (c) 2020 American Society of Civil Engineers.
引用
收藏
页数:7
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