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Double-chamber microbial fuel cell and preparation method thereof

A technology of fuel cells and microorganisms, applied in the direction of biochemical fuel cells, etc., can solve problems such as immature microbial fuel cells

Active Publication Date: 2020-05-19
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, using the characteristics of methanogens and anoxygenic photosynthetic bacteria, it is possible to construct a sustainable dual-chamber microbial fuel cell that simultaneously produces electricity and methane, but there is no mature method of utilizing methanogens and anoxic photosynthetic bacteria in the prior art. Microbial fuel cell technology prepared by anoxygenous photosynthetic bacteria

Method used

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  • Double-chamber microbial fuel cell and preparation method thereof
  • Double-chamber microbial fuel cell and preparation method thereof
  • Double-chamber microbial fuel cell and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] Such as figure 1 As shown, the present invention provides a dual-chamber microbial fuel cell, comprising two independent anode chambers 11 and cathode chambers 12, the bottom of the anode chamber 11 is provided with an anode 2, and the bottom of the cathode chamber 12 is provided with a cathode 3, so The side walls of the anode chamber 11 and the cathode chamber 12 communicate through the proton exchange membrane 4 . Both the anode chamber 11 and the cathode chamber 12 are filled with medium, the anode chamber 11 is inoculated with Rhodopseudomonas bacteria 7 , and the cathode chamber 12 is inoculated with Methanosarcina bacteria 8 . The anode chamber 11 is transparent; the anode 2 and the cathode 3 are respectively connected to the resistor 5 through wires. The Methanosarcina strain 7 is Methanosarcina barkeri, and the Rhodopseudomonas strain 8 is Rhodopseudomonas palustris.

[0035] Both the anode chamber 11 and the cathode chamber 12 are glass bottles, and the mout...

Embodiment 2

[0041] The preparation of embodiment 2 double-chamber microbial fuel cell

[0042] (1) Select two glass bottles with hollow bottoms and frosted openings on the side walls as the anode and cathode chambers, cut the proton exchange membrane and fix it to the circular frosted openings on the side walls of the two glass bottles with stainless steel clips, and use rubber Seal the mouth of the bottle with a rubber stopper; the dimensions of the ITO conductive glass anode and cathode are both 4.8cm×4.8cm; the effective volume of the glass bottle is 30ml, and the area of ​​the circular frosted opening on the side wall of the glass bottle is 2cm 2 , the area of ​​the proton exchange membrane is 3.5cm 2 .

[0043] (2) Activate the ITO conductive glass with boiling 10% hydrogen peroxide for 5 minutes, and then wash it with ultrapure water.

[0044] (3) Wrap the glass bottle obtained in step (1) and the ITO conductive glass in step (2) with tinfoil paper, and place them in a high-temper...

Embodiment 3

[0059] In order to analyze the interaction between the Rhodopseudomonas palustris bacterium and the Methanosarcina barkeri bacterium, a control group experiment was also carried out, including: the Rhodopseudomonas palustris light group, that is, the cathode chamber was not inoculated with the Methanosarcina barkeri bacterium, and other operations were all the same as in Example 1; the Methanosarcina barkeri dark group , that is, the anode chamber is not inoculated with Rhodopseudomonas palustris, and other operations are the same as in Example 1; the sterile light group, that is, the anode chamber and the cathode chamber are not inoculated with bacteria, and other operations are the same as in Example 1.

[0060] The result of embodiment 2 and 3 is as figure 2 As shown in Table 2, it can be seen that the 3 groups of control groups in Example 3 have no obvious electricity production or methane production, and only the system in Example 1 group can produce electricity ( figure...

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Abstract

The invention provides a double-chamber microbial fuel cell. The double-chamber microbial fuel cell comprises an anode chamber and a cathode chamber which are independent, the bottom of the anode chamber is provided with an anode, the bottom of the cathode chamber is provided with a cathode, and the side walls of the anode chamber and the cathode chamber communicate through a proton exchange membrane; the anode chamber and the cathode chamber are filled with a culture medium, Rhodopseudomonas bacteria are inoculated in the anode chamber, and Methanosarcina bacteria are inoculated in the cathode chamber; the anode chamber is pervious to light; and the anode and the cathode are connected to a resistor through leads. The cell realizes synchronous electric energy output and methane production,and overcomes the defects that the existing microbial fuel cell is easily invaded into the anode chamber by oxygen, cannot be continuously regenerated and the like.

Description

technical field [0001] The invention relates to a double-chamber microbial fuel cell and a preparation method thereof, belonging to the technical field of microbial fuel cells. Background technique [0002] Microbial fuel cell is a bioelectrochemical technology that uses microorganisms as catalysts to convert chemical energy into electrical energy through microbial metabolism. Microbial fuel cells can be used for waste treatment and power generation, that is, to degrade waste through metabolic processes, and convert the chemical energy of waste into electricity or other valuable substances. Microbial fuel cells have the advantages of mild reaction conditions, high conversion efficiency, low cost, and no pollution. They have important application values ​​in environmental governance and new energy research, and have received extensive attention in recent years. [0003] At present, microbial fuel cells mainly use the electroactive microorganisms in the anode chamber to degra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16
CPCH01M8/16Y02E60/50
Inventor 刘星周顺桂黄玲艳周凤飒
Owner FUJIAN AGRI & FORESTRY UNIV
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