MICROBIAL POWER GENERATION DEVICE, ELECTRODE FOR MICROBIAL POWER GENERATION DEVICE, AND METHOD FOR PRODUCING SAME

摘要

Provided are a microbial power generation device, an electrode for the microbial power generation device, preparing methods of the same, an electric power producing method using microbes and a selective culture method of the microbes used for the electric power producing method capable of improving electric power production capacity and of suppressing power generation cost. In a microbial power generation device (1), microbes (reducing microbes) that reduce graphene oxide are enriched among microbes inhabiting wastewater, slurry, activated sludge and the like. Therefore, the graphene oxide is reduced by the reducing microbes, so the graphene is produced. Electrons produced by the microbes can be transmitted to a negative electrode (14) via the produced graphene. As a result, the electric power production capacity can be improved and the power generation can be performed at a low cost.

主权项

1: A microbial power generation device, comprising:
a negative electrode section comprising a liquid comprising an organic substance and a negative electrode and that biodegrades the organic substance with microbes under an anaerobic atmosphere; a positive electrode section having a positive electrode; and an external circuit that electrically connects the positive electrode and the negative electrode, wherein the microbial power generation device is configured to generate power by transferring electrons from the negative electrode section to the positive electrode section via the external circuit, the negative electrode section comprises graphene, and the graphene forms an aggregation structure comprising dense portions and sparse portions, in which microbes reducing graphene oxide adhere to the graphene.