Microbial fuel cell and preparation method thereof

A technology of fuel cells and microorganisms, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems of undiscovered Pseudomonas electrical activity and undisclosed uses of Pseudomonas, and achieve electricity production conditions that are not harsh, Ease of operation and cost reduction

Inactive Publication Date: 2011-11-23
CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Pseudomonas is a facultative aerobic bacteria that widely exists in nature. Many patents have disclosed its bioreduction of heavy metals (publication number: CN101531970), biological desulfurization (CN1594549), and biological denitrification (publication number: CN1460712). However, it has not disclosed the use of Pseudomonas in biopower generation, and it has not been found that Pseudomonas has electrical activity under aerobic, anoxic, and anaerobic conditions. report

Method used

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  • Microbial fuel cell and preparation method thereof
  • Microbial fuel cell and preparation method thereof
  • Microbial fuel cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: The electricity production of Pseudomonas MBR using glucose as fuel under aerobic conditions.

[0035] (1) Construction of microbial fuel cell device: In this example, a microbial fuel cell device using Pseudomonas MBR to generate electricity was constructed according to the existing technology and method, as shown in the attached figure 1 As shown, it includes four parts: anode chamber, cathode chamber, diaphragm and external circuit. In the figure, 1 is the anode chamber, 2 is the cathode chamber, 3 is the anode electrode, 4 is the cathode electrode, and 5 is the diaphragm. The volumes of the cathode and anode chambers are both 245ml, the cathode and anode are both 6 cm×5 cm carbon felt, and the cation exchange membrane is used as the diaphragm.

[0036] (2) Prepare anolyte. A component: NH 4 Cl 0.53 g, KH 2 PO 4 2.0g, MgSO 4 7H 2 0 0.5 g, FeCl 3 6H 2 O 0.005 g, CaCO 3 0.01 g, Na 2 CO 3 3.18 g, NaHCO 3 5.88 g, 800 mL of distilled water; B...

Embodiment 2

[0040] Example 2: Pseudomonas MBR uses glucose as fuel to produce electricity under anoxic conditions

[0041] The experimental method and steps are basically the same as the operation of MFC1 in Example 1. The difference is that in this embodiment, the anode compartment of the microbial fuel cell MFC2 is aerated with air, so that the dissolved oxygen is maintained at 0.2~0.5 mg L -1 . Its electricity production curve is as image 3 As shown, the average cycle is about 10 days, and the COD removal rate of organic matter at the anode is 179 mg L -1 d -1 , the total removal rate was 81%.

Embodiment 3

[0042] Example 3: Pseudomonas MBR uses glucose as fuel to produce electricity under anaerobic conditions

[0043] The experimental method and steps are basically the same as the operation of MFC1 in Example 1. The difference is that in this embodiment, when the microbial fuel cell MFC3 is started, the anode chamber is ventilated with nitrogen for 20 minutes to ensure anaerobic conditions. Its electricity production curve is as Figure 4 As shown, the average cycle is about 8 days, and the COD removal rate of organic matter at the anode is 272 mg L -1 d -1 , the total removal rate was 83%.

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Abstract

The invention belongs to the technical field of bioenergy, and relates to a microbial fuel cell adopting pseudomonas alcaliphila sp. MBR as a catalyst, and a preparation method thereof. The microbial fuel cell adopts pseudomonas alcaliphila sp. MBR as an anode catalyst, wherein the preservation number of the pseudomonas alcaliphila sp. MBR is CGMCC NO.2318, and anode solution contains glucose, sodium citrate, cane sugar, fructose, xylose or soluble starch. The microbial fuel cell can work under aerobic, anoxic or amaerobic conditions and has the characteristics of non-harsh power production conditions, simple operation and low operation cost.

Description

technical field [0001] The invention belongs to the technical field of bioenergy, and in particular relates to a microbial fuel cell using pseudomonas as a catalyst and a preparation method thereof. Background technique [0002] With the rapid development of society, the depletion of fossil fuels and the trend of global warming force countries all over the world to attach great importance to the development of renewable new energy. Microbial fuel cell (MFC) is a device that uses electrogenic microorganisms as an anode catalyst to convert chemical energy in organic matter into electrical energy. [0003] The increasing amount of organic waste is the main source of environmental pollution. [0004] MFCs can generate clean electricity while removing organic waste. [0005] The electrogenic microorganisms as MFC anode catalysts are the core. At present, more than 20 strains of electrogenic microorganisms have been discovered, mainly concentrated in the genera Shewanella and G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M4/90
CPCY02E60/527Y02E60/50
Inventor 李大平张礼霞张廷滔何晓红陶勇王晓梅
Owner CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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