Microbial fuel cell and power generation device with same

Abstract

The invention discloses a microbial fuel cell, a power generation device provided with the microbial fuel cell, and application of the power generation device provided with the microbial fuel cell in microbial power generation in a rice field. The microbial fuel cell comprises an anode, a cathode and a proton exchange membrane; the cathode comprises a catalyst, a conductive material and adhesive; the catalyst is manganese dioxide; and the proton exchange membrane is waterproof breathable cloth. The microbial fuel cell is used for manufacturing the power generation device, and the power generation device applied in the rice field can compete with methanogen in the rice field on organic substances so as to reduce the discharge amount of methane in the rice field, reduce the emission of greenhouse gas and contribute to the global climate.

Description

Technical field: [0001] The invention relates to a microbial fuel cell, a power generating device equipped with the microbial fuel cell, and an application of the power generating device equipped with the microbial fuel cell in microbial power generation in paddy fields. Background technique: [0002] Soil is rich in carbon sources, such as organic matter, fertilizers applied by people, and exudates produced by the roots of rice during the growth process. These organics are released in an anaerobic (flooded) environment by conversion to methane by a special class of anaerobic microbes (methanogens). Rice is an important food crop. It absorbs and assimilates 30-50% of the carbon in photosynthesis, synthesizes sugar, and transports it to the roots and enters the soil. Most of them are converted into methane. According to reports, the earth's surface releases about 515 million tons of methane into the atmosphere every year, of which 12% comes from rice fields. [0003] Enviro...

AI Technical Summary

Problems solved by technology

However, the cost of this microbial fuel cell is high, and the proton exchange membrane, imported carbon paper, and catalyst Pt are all relatively expensive items, and if the existing single-chamber MFC is to be applied to rice field power generation, the rice field soil must be Pump into the anode chamber, which is not only time-consuming and laborious, but also can't cultivate rice at the same time

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