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Abstract

A microbial fuel cell system includes a supply-drain compartment having a supply port and a drain port of an electrolytic solution. The microbial fuel cell system further includes one or more power generation cassettes provided in the supply-drain compartment and each including a microbial fuel cell including: a positive electrode including a first water-repellent layer in contact with a gas phase and a gas diffusion layer attached to the first water-repellent layer; and a negative electrode holding anaerobic microorganisms. The microbial fuel cell system includes one or more purifying cassettes provided in the supply-drain compartment and each including a second water-repellent layer in contact with the gas phase. The power generation cassettes are arranged on the upstream side in a direction in which the electrolytic solution flows from the supply port toward the drain port, and the purifying cassettes are arranged on the downstream side of the power generation cassettes.

First Claim