Abstract
The research is based on the single-chamber microbial fuel cell, with the presence of oxygen, we vary the concentration gradient of copper ions, and observe the changes of the electrochemical parameters to explore the practical application of microbial fuel cells as heavy metal sensors. It was found that: the single-chamber microbial fuel cell, the outer barrier of 30min real-time voltage 1000Ω, 100Mmpbs, under 1000mg / LCOD, case, data acquisition card collection, with the change of the concentration gradient, linear development, polarization curves the measured voltage and power density, showing trends X² by multimeter collected anode and cathode potentials, also showed a trend X², in order at the same time, through the environment, COD, PH, and other factors, be optimization process, resulting in more accurate variation for the practical application of microbial fuel cells, providing new ideas.
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