CN106654329A - Self-circulation air cathode microbial fuel cell based on bubble buoyancy and method - Google Patents
Self-circulation air cathode microbial fuel cell based on bubble buoyancy and method Download PDFInfo
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- CN106654329A CN106654329A CN201710170007.1A CN201710170007A CN106654329A CN 106654329 A CN106654329 A CN 106654329A CN 201710170007 A CN201710170007 A CN 201710170007A CN 106654329 A CN106654329 A CN 106654329A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a self-circulation air cathode microbial fuel cell based on bubble buoyancy and a method. The self-circulation air cathode microbial fuel cell based on bubble buoyancy comprises an anode chamber and a cathode chamber; the cathode chamber is located above the anode chamber, and the cathode chamber communicates with the anode chamber; the self-circulation air cathode microbial fuel cell is characterized in that the upper part of the cathode chamber has a taper with a small upper part and a large lower part, a vapor-liquid outlet is formed in a top end of the cathode chamber, and the vapor-liquid outlet communicates with a storage device arranged above the cathode chamber through a first pipeline; the inside diameter of the first pipeline is the same as the diameter of a bubble generated by a bubbling sieve, and the storage device communicates with the anode chamber through a second pipeline; according to the self-circulation air cathode microbial fuel cell disclosed by the invention, the density difference of working media is used as the transmission power of substance, an air pump and height difference are fully used to realize the natural circulation of the substance, the cell performance is improved, the operation cost is reduced, and the purpose of reducing the energy consumption is achieved; and the self-circulation air cathode microbial fuel cell can be widely used in the fields of energy, chemical industry, environmental protection, etc.
Description
Technical field
The present invention relates to microbiological fuel cell, and in particular to a kind of self-circulation air negative electrode based on bubble floating lift is micro-
Biological fuel cell and method.
Background technology
Microbiological fuel cell (Microbial Fuel Cells, MFCs) is a kind of utilization microorganism by organic matter
Chemical energy is directly translated into the device of electric energy, with fuel source is extensive, reaction condition gentle, good biocompatibility, is producing
Wastewater treatment unique advantage is carried out while electric energy, becomes the focus of global regenerative resource researcher concern.Wherein, with air
In oxygen be the one of current great scale application potential quality as the air cathode microbial fuel cell of cathode electronics acceptor
Kind.Chinese scholars are widely visited for the optimization of air cathode catalyst and the direction such as preferred of material all expand deeply
Study carefully.By substantial amounts of experimental study, the performance of air cathode and cost control have larger lifting.However, current MFC's is defeated
Go out that power is relatively low, also have very big distance apart from practical application.Affecting the factor of MFC performances has a lot, including microbe species,
Resistance, electrode material, structure of reactor of matrix, cell interior and outside etc..Wherein structure of reactor and cathode electrode material
It is the key factor for affecting battery performance.
A kind of novel air cathode microbial being circulated using air pump and waste water pump has been invented by Cho, MH team
Fuel cell structure, is provided with low cost, the advantages of mass transfer ability is good, but in actual motion, using for multiple pumps can be caused
Energy consumption increases, and unnecessary energy loss can be brought in actual treatment.
The content of the invention
The technical problem to be solved is to provide a kind of micro- life of self-circulation air negative electrode based on bubble floating lift
Thing fuel cell.
In order to solve above-mentioned technical problem, first technical scheme of the invention, based on following certainly for bubble floating lift
Ring air cathode microbial fuel cell, including anode chamber and cathode chamber；The cathode chamber is located at the upper of anode chamber
Side, and cathode chamber is connected with anode chamber；Anode electrode is provided with anode chamber, the anode electrode is vertical by several
The carbon brush of arrangement is constituted；Cathode electrode is provided with cathode chamber, the cathode electrode is by several bamboo charcoal tube structures arranged vertically
Into；Bubbling sieve is provided between anode chamber and cathode chamber；It is characterized in that：The top of cathode chamber has up-small and down-big
Taper, and vapour-liquid outlet is set on the top of cathode chamber, the vapour-liquid outlet is arranged by pipeline one and cathode chamber top
Memory is connected；The bubble diameter the same memory that the internal diameter of pipeline one goes out with bubbling screen cylinder is by pipeline two and anode chamber
It is connected.
The present invention has the characteristic of porous using the bamboo charcoal tube after carbonization, greatly increased contact of the electrode with electrolyte
Area, promotes the reaction of negative electrode；What bamboo charcoal was restrained is arranged vertically the fortune upwards for being conducive to bubble in bamboo charcoal tube and outside bamboo charcoal tube
It is dynamic, it is to avoid the aggregation of air bubble；Bubbling increased disturbance, enhance the mass transfer between electrolyte and electrode, promote
The carrying out of electrochemical reaction；Meanwhile, the present invention is used as the transmission power of material by the density contrast of working medium, makes full use of air
Pump and memory realize the Natural Circulation of material with the difference in height of anode chamber, improve the performance of battery and reduce fortune
Row cost, reduces the purpose of energy consumption.In addition, the anolyte and catholyte of the present invention are identical electrolyte, adjust well
The pH value of cathode and anode liquid is saved, battery performance has been improve, while it is useless without buffer solution to can be used for process low concentration in practice
Water.
According to the preferred side of the self-circulation air cathode microbial fuel cell based on bubble floating lift of the present invention
Case, the top of the cathode chamber arranges multiple vapour-liquid outlets, and each vapour-liquid outlet is respectively by pipeline one and cathode chamber top
The memory of setting is connected.By adjusting vapour-liquid export volume, the purpose of adjustment flow rate of liquid is reached.
Second technical scheme of the invention, it is a kind of to realize air cathode microbial fuel electricity using bubble floating lift
The method of pond self-loopa, it is characterised in that：Comprise the steps：
Firstth, air cathode microbial fuel cell is set up, the battery includes anode chamber and cathode chamber；The negative electrode
Chamber is located at the top of anode chamber, and cathode chamber is connected with anode chamber；Anode electrode is provided with anode chamber, should
Anode electrode is made up of several carbon brush arranged vertically；Cathode electrode is provided with cathode chamber, the cathode electrode is by some
Individual bamboo charcoal tube arranged vertically is constituted；Bubbling sieve is provided between anode chamber and cathode chamber；The top of cathode chamber has
Up-small and down-big taper, and vapour-liquid outlet is set on the top of cathode chamber, the vapour-liquid outlet is by pipeline one and cathode chamber
The memory that top is arranged is connected；The bubble diameter that the internal diameter of the pipeline one goes out with bubbling screen cylinder is identical；Memory passes through
Pipeline two is connected with anode chamber；
Secondth, electrolyte is injected in the anode chamber and cathode chamber of battery；
3rd, air is entered to bubbling screen cylinder, bubbling sieve bloats air to form bubble, bubble rises anti-with bamboo charcoal tube generation
Should；
4th, bubble drives in the lump electrolyte to flow up into pipeline, and bubble and electrolyte are entered by pipeline one
Memory；
5th, the electrolyte in memory passes back into anode chamber by pipeline two.
According to the method that utilization bubble floating lift of the present invention realizes air cathode microbial fuel cell self-loopa
Preferred version, the top of the cathode chamber arranges multiple vapour-liquids outlets, and each vapour-liquid outlet is respectively by pipeline one and negative electrode
The memory that chamber top is arranged is connected.
Self-circulation air cathode microbial fuel cell and method based on bubble floating lift of the present invention it is beneficial
Effect is：The present invention is used as the transmission power of material by the density contrast of working medium, makes full use of air pump and difference in height to come real
The Natural Circulation of existing material, improves the performance of battery and reduces operating cost, reduces the purpose of energy consumption；In addition, this
The anolyte and catholyte of invention is identical electrolyte, and the pH value of anode and cathode liquid is have adjusted well, improves battery performance,
Can be used for processing low concentration in practice simultaneously without buffer solution waste water；The present invention has low cost, good conductivity, bubbly flow
Resistance is little, the features such as pollution-free, can be widely used in the fields such as the energy, chemical industry, environmental protection.
Description of the drawings
Fig. 1 is that the structure of the self-circulation air cathode microbial fuel cell based on bubble floating lift of the present invention is shown
It is intended to.
Fig. 2 is that the structure of the self-circulation air cathode microbial fuel cell in specific embodiment based on bubble floating lift is shown
It is intended to.
Fig. 3 is the cv polarization of the self-circulation air cathode microbial fuel cell based on bubble floating lift of the present invention
Curve.
Fig. 4 is that the power of the self-circulation air cathode microbial fuel cell based on bubble floating lift of the present invention is close
Write music line.
Specific embodiment
Referring to Fig. 1, a kind of self-circulation air cathode microbial fuel cell based on bubble floating lift, including anode chamber
12 and cathode chamber 13；The cathode chamber 13 is located at the top of anode chamber 12, and cathode chamber 13 and the phase of anode chamber 12
Connection；Anode electrode is provided with anode chamber 12, the anode electrode is made up of several carbon brush 1 arranged vertically, all carbon
Brush is connected by the first titanium silk 10；Cathode electrode is provided with cathode chamber 13, the cathode electrode is arranged vertically by several
Bamboo charcoal tube 2 constitute, the outer wall of all bamboo charcoal tubes 2 winds the second titanium silk 11, and is connected by the second titanium silk 11；Anode cavities
Bubbling sieve 4 is provided between room 12 and cathode chamber 13, the bubbling sieve 4 is connected by pipeline 5 with external air pump 6, to import
Air；The top of cathode chamber 13 has up-small and down-big taper, and arranges vapour-liquid outlet, the vapour on the top of cathode chamber 13
Liquid outlet is connected by the memory 9 that pipeline 1 is arranged with cathode chamber top；The internal diameter of pipeline one is bloated with bubbling sieve 4
Bubble diameter it is identical；Memory 9 is connected by pipeline two with the electrolyte inlet 7 of the bottom of anode chamber 12.
Referring to Fig. 2, in a particular embodiment, the top of the cathode chamber 13 arranges multiple vapour-liquid outlets, and each vapour-liquid goes out
The memory 9 that mouth is arranged respectively by pipeline one with cathode chamber top is connected.By adjust vapour-liquid outlet quantity and
The power of external air pump 6, reaches the purpose of adjustment flow rate of liquid.
A kind of method that utilization bubble floating lift realizes air cathode microbial fuel cell self-loopa, including following step
Suddenly：
Firstth, air cathode microbial fuel cell is set up, the battery includes anode chamber 12 and cathode chamber 13；It is described
Cathode chamber 13 is located at the top of anode chamber 12, and cathode chamber 13 is connected with anode chamber 12；Set in anode chamber 12
Anode electrode is equipped with, the anode electrode is made up of several carbon brush 1 arranged vertically, all carbon brush are connected by the first titanium silk 10
Connect；Cathode electrode is provided with cathode chamber 13, the cathode electrode is made up of several bamboo charcoal tubes 2 arranged vertically, Suo Youzhu
The outer wall of charcoal pipe 2 winds the second titanium silk 11, and is connected by the second titanium silk 11；Between anode chamber 12 and cathode chamber 13
Bubbling sieve 4 is provided with, the bubbling sieve 4 is connected by pipeline 5 with external air pump 6, to import air；The top of cathode chamber 13
With up-small and down-big taper, and in the top setting vapour-liquid outlet of cathode chamber 13, vapour-liquid outlet is by pipeline 1 and the moon
The memory 9 that pole chamber top is arranged is connected；The bubble diameter that the internal diameter of pipeline one is bloated with bubbling sieve 4 is identical；Memory 9
It is connected with the electrolyte inlet 7 of the bottom of anode chamber 12 by pipeline two.
In a particular embodiment, multiple vapour-liquid outlets are set on the top of the cathode chamber 13, each vapour-liquid outlet difference
The memory 9 arranged with cathode chamber top by pipeline one is connected.
Secondth, the injection electrolyte in the anode chamber 12 and cathode chamber 13 of battery.
3rd, air is blasted to bubbling sieve 4 using air pump 6, bubbling sieve 4 bloats air to form bubble 3, on bubble 3
Rise and reacted with bamboo charcoal tube 2.
4th, bubble 3 is into pipeline 1 and drives electrolyte to flow up, and bubble 3 and electrolyte pass through pipeline 1
Into memory 9.
5th, the electrolyte in memory 9 passes back into anode chamber 12 by pipeline 2 14.
The present invention realizes that the operation principle of self-loopa is：The present invention blasts air, bubbling using air pump 6 to bubbling sieve 4
Sieve 4 bloats air to form bubble 3, and bubble 3 ascends into pipeline 1, due to bubble diameter it is identical with the diameter of pipeline one, pipeline
Bubble is subject to buoyancy lift, gravity and surface tension effects in one, because buoyancy lift is much larger than gravity and surface tension so that bubble
It is gradually increasing, bubbles entrain reactor electrolyte inside is transmitted upwards, bubble 3 and electrolyte enter memory by pipeline 1
9, due to memory 9 and the difference in height of anode chamber 12, the electrolyte in memory 9 passes back into anode chamber by pipeline 2 14
12, realize self-loopa process.
It is 52ml/min when bubbling sieve 4 bloats the flow velocity of bubble from Fig. 3 and Fig. 4, maximum power density reaches
1.27w/m3, increase flow velocity, when flow velocity increases to 72ml/min, maximum power density increases to 1.40w/m3, when flow velocity increases to
92ml/min, maximum power density has 1.56w/m3, when further increasing flow velocity to 112ml/min, maximum power density but under
It is reduced to 0.7w/m3。
Claims (4)
1. a kind of self-circulation air cathode microbial fuel cell based on bubble floating lift, including anode chamber (12) and negative electrode
Chamber (13)；The cathode chamber (13) is positioned at the top of anode chamber (12), and cathode chamber (13) and anode chamber (12)
It is connected；Anode electrode is provided with anode chamber (12), the anode electrode is made up of several carbon brush arranged vertically (1)；
Cathode electrode is provided with cathode chamber (13), the cathode electrode is made up of several bamboo charcoal tubes arranged vertically (2)；Anode cavities
Bubbling sieve (4) is provided between room (12) and cathode chamber (13)；It is characterized in that：The top of cathode chamber (13) has upper little
Big taper, and the top setting vapour-liquid in cathode chamber (13) down is exported, and vapour-liquid outlet is by pipeline one (8) and cathode cavity
The memory (9) that room top is arranged is connected；The bubble diameter that the internal diameter of pipeline one (8) is bloated with bubbling sieve (4) is identical, storage
Device (9) is connected by pipeline two with anode chamber (12).
2. the self-circulation air cathode microbial fuel cell based on bubble floating lift according to claim 1, its feature
It is：The top of the cathode chamber (13) arranges multiple vapour-liquid outlets, and each vapour-liquid outlet is respectively by pipeline one and cathode cavity
The memory (9) that room top is arranged is connected.
3. a kind of method that utilization bubble floating lift realizes air cathode microbial fuel cell self-loopa, it is characterised in that：Bag
Include following steps：
Firstth, air cathode microbial fuel cell is set up, the battery includes anode chamber (12) and cathode chamber (13)；It is described
Cathode chamber (13) is connected positioned at the top of anode chamber (12), and cathode chamber (13) with anode chamber (12)；Anode cavities
Anode electrode is provided with room (12), the anode electrode is made up of several carbon brush arranged vertically (1)；In cathode chamber (13)
Cathode electrode is provided with, the cathode electrode is made up of several bamboo charcoal tubes arranged vertically (2)；Anode chamber (12) and cathode cavity
Bubbling sieve (4) is provided between room (13)；The top of cathode chamber (13) has up-small and down-big taper, and in cathode chamber
(13) top arranges vapour-liquid outlet, memory (9) phase that the vapour-liquid outlet is arranged by pipeline one (8) with cathode chamber top
Connection；Bubble (3) diameter that the internal diameter of the pipeline one (8) is bloated with bubbling sieve (4) is identical；Memory (9) is by pipeline two
(14) it is connected with anode chamber (12)；
Secondth, the injection electrolyte in the anode chamber (12) and cathode chamber (13) of battery；
3rd, air is blasted to bubbling sieve (4), bubbling sieve (4) bloats air to form bubble (3), and bubble (3) rises and bamboo charcoal
Pipe (2) reacts；
4th, bubble (3) is into pipeline one (8) and drives electrolyte to flow up, and bubble (3) and electrolyte pass through pipeline one
(8) into memory (9)；
5th, the electrolyte in memory (9) passes back into anode chamber (12) by pipeline two (14).
4. utilization bubble floating lift according to claim 3 realizes the side of air cathode microbial fuel cell self-loopa
Method, it is characterised in that：The top of the cathode chamber (13) arranges multiple vapour-liquid outlets, and each vapour-liquid outlet passes through respectively pipeline one
The memory (9) arranged with cathode chamber top is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710170007.1A CN106654329B (en) | 2017-03-21 | 2017-03-21 | Self-circulation air cathode microbial fuel cell and method based on bubble floating lift |
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| CN201710170007.1A CN106654329B (en) | 2017-03-21 | 2017-03-21 | Self-circulation air cathode microbial fuel cell and method based on bubble floating lift |
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| CN106654329A true CN106654329A (en) | 2017-05-10 |
| CN106654329B CN106654329B (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760477A (en) * | 2020-06-18 | 2020-10-13 | 浙江庆元赛博电子科技有限公司 | Ozone sterilization and disinfection device |
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| US8017366B1 (en) * | 2008-04-30 | 2011-09-13 | Allen John Schuh | Self-contained biofuel production and water processing apparatus |
| JP2010113831A (en) * | 2008-11-04 | 2010-05-20 | Ace Bio Product Kk | Biofuel cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760477A (en) * | 2020-06-18 | 2020-10-13 | 浙江庆元赛博电子科技有限公司 | Ozone sterilization and disinfection device |
| CN111760477B (en) * | 2020-06-18 | 2022-02-11 | 浙江庆元赛博电子科技有限公司 | Ozone sterilization and disinfection device |
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