Biological-agent fuel cell

A technology for fuel cells and biological agents, applied in the field of microorganisms, to achieve the effects of high COD removal rate, low construction and operating costs, and improved power generation efficiency

Inactive Publication Date: 2013-10-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many microorganisms producing electricity have been found, such as Shewanella, Geobacter, Klebsiella, etc., these bacteria can only produce electricity under neutral conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]A biological fuel cell, including cathode (20cm×20em carbon felt), catholyte, anode (20cm×20cm carbon felt), anolyte, microbial fuel, cation exchange membrane, copper wire and resistance (1000 ohm), through The wire connects the cathode, the anode and the resistor in series to form a loop; the anolyte is: NH 4 Cl 1.3%, NaHCO 3 0.3%, KH 2 PO 4 0.2%, glucose 2%, and the rest is water (weight fraction); the anolyte is fed with high-purity nitrogen to ensure that it is in an anaerobic state. Catholyte is: the potassium ferricyanide solution (weight fraction) of concentration 8%;

[0037] The above-mentioned microbial fuel is prepared from the following raw material bacteria in weight percentage: 20% of Bacillus pumilus, 20% of Bacillus licheniformis, 20% of Rhodopseudomonas palustris, 15% of Pseudomonas aeruginosa, 15% of Geobacter sulfurreducing %, Thiolobus propionicum 10%. The microbial fuel is a mixed bacterial solution, and the inoculation amount is 5% of the ano...

Embodiment 2

[0039] The anolyte was industrial wastewater from a chemical fertilizer factory in Linshu. Specific microbial strains were selected for microbial fuel, Bacillus pumilus CGMCC No.5056, Bacillus licheniformis CCTCC No.M206082, Rhodopseudomonas palustris ( Rhodopseudomonas palustris) ATCC 17001, Pseudomonas aeruginosa ATCC 15442, Geobacter sulfurreducens ATCC 51573, Desulfobulbus propionicus ATCC 33891, and the rest are the same as above. The composition changes of the anolyte and the anolyte after 36 hours of power generation are shown in Table 1:

[0040] Table 1

[0041]

[0042] At the same time, the voltage across the detection resistor is 763mv; it can be seen that the biological agent fuel cell of the present invention not only has good power generation performance, but also can treat highly polluted industrial wastewater, and can also be used as an effective sewage treatment agent.

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PUM

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Abstract

The invention discloses a biological-agent fuel cell. The biological-agent fuel cell comprises microbial fuel, wherein the microbial fuel is formed by mixing bacillus pumilus, bacillus licheniformis, rhodopseudomonas palustris, pseudomonas aeruginosa, sulfuric-reducing geobacter and sulfolobus propionate. The biological-agent fuel cell disclosed by the invention has the advantages that by selection of proper electricity-generating microbes, the electricity-generating efficiency of the microbes is greatly improved; and due to better symbiotic synergy among multiple microbes, the defects of low efficiency and single substrate and the like of single electricity-generating microbes in the prior art are overcome, so that the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and in particular relates to a biological agent fuel cell. Background technique [0002] A biofuel cell is a power generation device that uses enzymes or microbial tissues as catalysts to convert the chemical energy of fuel into electrical energy. At present, microbial fuel cells are more researched. The basic working principle is: in the anaerobic environment of the anode chamber, organic matter is decomposed under the action of microorganisms and releases electrons and protons. Effective transfer between the anode and the anode, and transfer to the cathode through an external circuit to form a current, while the protons are transferred to the cathode through the proton exchange membrane, and the oxidant (usually oxygen) obtains electrons at the cathode and is reduced and combined with protons to form water. [0003] Compared with other existing technologies that use organic matter to ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M4/90C02F3/34
CPCY02E60/50
Inventor 梁茂杰刘松魏若琳刘庆义何健李彪常俊军
Owner STATE GRID CORP OF CHINA
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