Biological cathode type microbial fuel cell

Abstract

The invention provides a biological cathode type microbial fuel cell which comprises a plurality of cathode cavities, a plurality of anode cavities and a plurality of ion exchange membranes, wherein the plurality of cathode cavities and the plurality of anode cavities are arranged at intervals, and each cathode cavity is separated from the adjacent anode cavity through one ion exchange membrane. Each cathode cavity comprises a first cavity, a cathode active material, two first current collecting metal nets, a plurality of first electronic export ends, a first water inlet, a first water outlet and an aeration device, wherein the two first current collecting metal nets are arranged in the first cavity in parallel and at an interval; the plurality of first electronic export ends are arranged on the first current collecting metal nets at intervals and connected with an external circuit. Each anode cavity is basically the same with each cathode cavity in structure, and the difference is that each anode cavity is filled with an anode active material and no aeration device is arranged.

Description

technical field [0001] The invention relates to a biocathode type microbial fuel cell, in particular to a biocathode type microbial fuel cell integrated with multi-electrode cavities. Background technique [0002] With the rapid development of my country's economy, increasingly frequent industrial production activities and human activities have caused serious water pollution and consumed a lot of energy; today's water pollution and energy shortage have become the key issues restricting my country's sustainable development. [0003] Microbial Fuel Cell (MFC for short) is a new sewage treatment technology that uses electricity-producing microorganisms to degrade organic pollutants in water and convert their chemical energy into electrical energy in situ. Because MFC produces less residual sludge in the process of sewage treatment, lower operating energy consumption, and can generate electricity in situ, with higher energy conversion efficiency, so MFC has received extensive at...

AI Technical Summary

Problems solved by technology

The amplified MFC system is the only way for MFC to go to the industrial application of sewage treatment. However, the output power density of the amplified MFC system generally decreases sharply with the enlargement of its volume, and its cost increases significantly. The effect of oxygen sewage treatment is not ideal, so it greatly restricts the scale-up and practical process of MFC

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