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A microbe fuel battery and its application

A fuel cell and microbial technology, applied in biochemical fuel cells, fuel cell components, biological water/sewage treatment, etc., can solve the problems of poor mechanical strength, low-cost membrane materials restricting MFC, and restricting the widespread application of microbial fuel cells, etc. problems, achieve high output power and power generation performance, and reduce costs

Inactive Publication Date: 2008-09-17
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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Problems solved by technology

It is impossible to realize the large-scale promotion of microbial fuel cells (MFC)
[0008] (2) poor mechanical strength
[0009] (3) Localization has not been realized
[0010] (4) The production process is not environmentally friendly enough
[0011] Therefore, the application of low-cost membrane materials is one of the technical bottlenecks restricting the practical application of MFC.
For a long time, the design concept derived from microbial fuel cells has been based on proton exchange membranes. So far, there have been no reports on the application of membrane materials with low cost, good mechanical strength, and large-scale industrial production. The general promotion and application of microbial fuel cells in my country and even in the world

Method used

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  • A microbe fuel battery and its application
  • A microbe fuel battery and its application
  • A microbe fuel battery and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Embodiment 1 uses the schematic diagram of the microbial fuel cell structure of cation exchange membrane to see appendix figure 1 .

[0038] The anion and anode chambers of the microbial fuel cell are separated by a cation exchange membrane of 8 cm x 8 cm. The cation exchange membrane can be a commercially available product. The cation exchange membrane of this embodiment was purchased from Zhejiang Qianqiu Industrial Co., Ltd. The anode chamber is sealed and the cathode chamber is open. The structure and connection method of the anode chamber, cathode chamber and external circuit can adopt the existing microbial fuel cell structure and connection method. In this embodiment, the anode is made of graphite felt, and the cathode is made of carbon cloth. Organic waste water (COD: 4850 mg / L) was added to the anode chamber as fuel, common anaerobic sludge was inoculated as electricity-producing microorganisms, and the battery was operated at room temperature for 19 days after...

Embodiment 2

[0040] Example 2 The schematic diagram of the microbial fuel cell structure using anion exchange membranes is shown in the appendix figure 1 .

[0041] The anion and anode compartments of the microbial fuel cell are separated by an anion exchange membrane of 8 cm × 8 cm, and the anion exchange membrane can be a commercially available product. The structure and connection method of the anode chamber, cathode chamber and external circuit can adopt the existing microbial fuel cell structure and connection method. In this embodiment, the anode is graphite felt and the cathode is carbon cloth. Organic wastewater (COD: 4850mg / L) was added to the anode chamber as fuel, common anaerobic sludge was inoculated as electricity-producing microorganisms, and the battery was operated at room temperature after an external resistance of 1000Ω.

[0042] This kind of MFC using anion exchange membrane, the output voltage will be stable at about 0.32V, see attached Figure 4 shown. The maximum po...

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Abstract

The present invention provides a microbial fuel cell, using organic compounds as fuel, including an anode chamber, a cathode chamber, a membrane material for comparting the anode chamber and the cathode chamber and an external circuit, the membrane material is ion exchange membrane. The invention constructing microbial fuel cell by adopting ion exchange membrane as membrane material of MFC, improves the design concept of the microbial fuel cell based on the proton exchange membrane for a long time, the microbial fuel cell construction of the invention adopts the traditional MFC construction by using proton exchange membrane, having corresponding or even more output power and electricity production performance compared to the traditional MFC using proton exchange membrane, capable of commendably substituting the traditional MFC using proton exchange membrane, reducing the cost of the microbial fuel cell, providing possibility and technical support to the practical promotion of the microbial fuel cell.

Description

technical field [0001] The invention belongs to the technical field of bioenergy utilization, and in particular relates to a microbial fuel cell and its application. Background technique [0002] Today's energy and environmental issues are closely related to human survival. On the one hand, energy shortages call for the emergence and optimization of clean and advanced energy technologies. On the other hand, the treatment of a large amount of organic waste and wastewater generated by municipal, industrial, and agricultural industries urgently needs to be resolved. In this form, the research of microbial fuel cell (Microbial Fuel Cell, MFC) is particularly important. [0003] Microbial fuel cell is a device that converts chemical energy in organic matter directly into electrical energy using electrogenic microorganisms as catalysts. The basic principle is that the organic matter used as fuel is oxidized by electrogenic microorganisms in the anaerobic anode chamber to generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M8/02C02F3/00H01M8/0289
CPCY02E60/527Y02E60/50
Inventor 肖可周顺桂卢娜
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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