Self-medium coupled microbe fuel battery for single room micro filtering

Abstract

The present invention discloses a single-chamber microfiltration membrane self-mediator coupling type microbial fuel cell, comprises a single-chamber type cell body, an anode plate, a cathode plate and a top cover, wherein, the single-chamber type cell body is in a square cavity structure; the cathode plate consists of a micropore filter layer, a catalyst layer, a carbon paper base layer and a waterproof layer which are connected in order; the micropore filter layer is a hydrophilic microfiltration membrane with micropores; the catalyst layer is the mixture of platinum catalyst and carbon powder, which covers one side of the carbon paper base layer in contact with solution inside the cell body; the other side of the carbon paper base layer in contact with air is plastered with 2-3 polyfluortetraethylene thin coatings so as to form the waterproof layer. The device of the present invention can have a plurality of anode plates placed inside and flexibly adjust the relative distance between the anode plates and an anode. In the whole operation process, the system does not need to keep strict anaerobic environment. The cell is simple in structure, cheap in material, flexible to operate, fast to charge / discharge, stable in performance and capable of constantly and efficiently purifying sewage and producing electric energy which can be directly utilized.

Description

technical field [0001] The present invention relates to a fuel cell, in particular to a single-chamber microfiltration membrane self-mediated body coupled microbial fuel cell that is inexpensive, simple in configuration, easy to operate, and capable of efficiently treating organic sewage while obtaining direct electric energy. The microbial fuel cell is also A sewage treatment device. Background technique [0002] The microbial fuel cell technology that has emerged in recent years can obtain additional electrical energy output while treating sewage. It is a new sewage treatment process in addition to the traditional activated sludge process and anaerobic digestion process. The microbial fuel cell (MFC) used in early research is a double-chamber type. The cathode and anode electrodes are located in the cathode compartment and the anode compartment, respectively, and the proton exchange membrane is located in the middle. When applied to actual wastewater treatment, the bigges...

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Problems solved by technology

However, it is difficult to enrich bacteria with the ability to secrete electron mediators at present, requiring specific methods and a long cycle, and electron mediators are oxygen-consuming substances, which will increase the COD in the effluent

[0006] In summary, although the existing MFC technology has made major breakthroughs in configuration, materials and electrogenic bacteria, there are many theoretical and technical difficulties that have not been well resolved.

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