Microbiological fuel cell

A fuel cell and microbial technology, applied in the direction of biochemical fuel cells, etc., can solve the problems of environmental pollution, high processing cost, large processing capacity, etc., and achieve the effect of simple device structure, simple method and effective utilization

Inactive Publication Date: 2011-10-05
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, these organic wastes pollute the environment, on the oth

Method used

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Example Embodiment

[0013] Example 1

[0014] The microbial fuel cell includes: an anode chamber with organic waste, water and acclimated anaerobic sludge inside the anode chamber, the mass ratio of the three is about 5:3:1, the anode chamber is isolated from the air, and the interior is an anaerobic environment, The cathode chamber is composed of disodium hydrogen phosphate and sodium dihydrogen phosphate buffer solution, the concentration of which is 0.1mol / L, and the volume ratio is 3:2. The salt bridge is connected.

Example Embodiment

[0015] Example 2

[0016] The microbial fuel cell includes: an anode chamber with organic waste, water and acclimated anaerobic sludge inside the anode chamber, the mass ratio of the three is about 4:2:1, the anode chamber is isolated from the air, and the interior is an anaerobic environment, The cathode chamber is composed of disodium hydrogen phosphate and sodium dihydrogen phosphate buffer solution, the concentration of which is 0.3mol / L, and the volume ratio is 2:1. The salt bridge is connected.

Example Embodiment

[0017] Example 3

[0018] The microbial fuel cell includes: an anode chamber with organic waste, water and acclimated anaerobic sludge inside the anode chamber, the mass ratio of the three is about 4.5:2.5:1, the anode chamber is isolated from the air, and the interior is an anaerobic environment, The cathode chamber is composed of disodium hydrogen phosphate and sodium dihydrogen phosphate buffer solution, the concentration of which is 0.2mol / L, and the volume ratio is 2.5:1.5. The salt bridge is connected.

[0019] The above examples show that when the organic waste is used to generate electricity in the present invention, the detected maximum open circuit voltage reaches about 700-1100mV, and the maximum power density is: 35-55mw / m 2 , TOC (total organic carbon degradation rate) is about 20 to 35%. The method of the invention is simple, the device structure is simple, no pollution, and the organic waste is effectively utilized.

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Abstract

The invention provides a microbiological fuel cell which can recycle organic garbage. The cell comprises an anode chamber and a cathode chamber, wherein the anode chamber is connected with the cathode node by a salt bridge; the anode chamber is filled with the organic garbage, water and anaerobic sludge and the inside of the anode chamber is an anaerobic environment; and the cathode chamber comprises disodium hydrogen phosphate and a sodium dihydrogen phosphate buffer solution and the inside of the cathode chamber is an aerobic environment. By using a processing method of the cell, organic matters in the organic garbage on an anode zone surface can generate carbon dioxide, protons and electrons under the action of anode microorganisms, wherein the electrons are delivered to an electrode by a midbody or a cytomembrane and then reach a cathode by an external circuit, and the protons are transferred to the cathode by a salt bridge solution and then reacts with oxygen to generate water, thus matters and charges in the whole process are balanced and external electrical equipment acquires electric energy. The cell is simple in method and device structure and is environmentally-friendly; and the organic garbage is utilized effectively.

Description

technical field [0001] The invention relates to a microbial fuel cell, in particular to a microbial fuel cell for treating organic waste. Background technique [0002] Organic waste mainly refers to waste containing organic components in domestic waste, including leftover rice, fruit peels, vegetable peels, waste paper, bamboo and wood, etc. On the one hand, these organic wastes pollute the environment, and on the other hand, they have a large amount of processing and high processing costs. Contents of the invention [0003] The main purpose of the present invention is to provide a microbial fuel cell that can recycle organic waste. [0004] In order to realize the above-mentioned invention object, the technical scheme that the present invention adopts is: a kind of microbial fuel cell, comprises anode chamber and cathode chamber, and wherein anode chamber and cathode chamber are connected by salt bridge, and the inside of described anode chamber is equipped with organic ...

Claims

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Application Information

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IPC IPC(8): H01M8/16
CPCY02E60/527Y02E60/50
Inventor 吴克俞志敏刘盛萍金杰刘斌洪磊
Owner HEFEI UNIV
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