Among the rapid development of science and technology in recent years, microbial fuel cell (MFC) is a kind of green production technology combining pollution treatment and energy generation. Because of its unique characteristics of decontamination and power generation, it has great research value and application prospect. In the research of environmental pollution and treatment, MFC has been developed and applied rapidly. While the power generation capacity is increasing, the construction cost

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... f MFC is also greatly reduced, which greatly improves the practicability. How to combine microbial fuel cell with intelligent city organically, we provide an idea.