CN106654329B - Self-circulation air cathode microbial fuel cell and method based on bubble floating lift - Google Patents
Self-circulation air cathode microbial fuel cell and method based on bubble floating lift Download PDFInfo
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- CN106654329B CN106654329B CN201710170007.1A CN201710170007A CN106654329B CN 106654329 B CN106654329 B CN 106654329B CN 201710170007 A CN201710170007 A CN 201710170007A CN 106654329 B CN106654329 B CN 106654329B
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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 self-circulation air cathode microbial fuel cell and method based on bubble floating lift, the self-circulation air cathode microbial fuel cell based on bubble floating lift, including anode chamber and cathode chamber；The cathode chamber is located at the top of anode chamber, and cathode chamber is connected with anode chamber；It is characterized by: the top of cathode chamber has up-small and down-big taper, and vapor and liquid export is set on the top of cathode chamber, which is connected by pipeline one with the memory being arranged above cathode chamber；The internal diameter of pipeline one is connected by pipeline two with anode chamber with the bubble diameter the same memory that screen cylinder goes out is bubbled；The present invention, as the transmission power of substance, makes full use of air pump and difference in height to realize the Natural Circulation of substance, improves the performance of battery and reduce operating cost by the density contrast of working medium, achievees the purpose that reduce energy consumption；It can be widely used in the fields such as the energy, chemical industry, environmental protection.
Description
Technical field
The present invention relates to microbiological fuel cells, and in particular to a kind of self-circulation air cathode based on bubble floating lift is micro-
Biological fuel cell and method.
Background technique
Microbiological fuel cell (Microbial Fuel Cells, MFCs) be it is a kind of will be in organic matter using microorganism
Chemical energy is directly translated into the device of electric energy, has that fuel source is extensive, reaction condition is mild, good biocompatibility, is generating
Wastewater treatment unique advantage is carried out while electric energy, becomes the hot spot of global renewable energy researcher concern.Wherein, with air
In oxygen as the air cathode microbial fuel cell of cathode electronics receptor be the one of current great scale application potential quality
Kind.Domestic and foreign scholars expand deeply the optimization of air cathode catalyst and the preferred equal directions of material and widely visit
Study carefully.It studies through a large number of experiments, the performance of air cathode and cost control have biggish promotion.However, current MFC's is defeated
Power is lower out, and apart from practical application, there are also very big distances.Influence MFC performance cause be known as very much, including microbe species,
Matrix, cell interior and the resistance of outside, electrode material, structure of reactor etc..Wherein structure of reactor and cathode electrode material
It is an important factor for influencing battery performance.
A kind of novel air cathode microbial recycled using air pump and waste water pump has been invented by Cho, MH team
Fuel cell structure is provided with the advantages that at low cost, mass transfer ability is good, but in actual operation, multiple pumps use meeting so that
Energy consumption increases, and unnecessary energy loss can be brought in actual treatment.
Summary of the invention
The micro- life of self-circulation air cathode based on bubble floating lift that technical problem to be solved by the invention is to provide a kind of
Object fuel cell.
In order to solve the above-mentioned technical problem, first technical solution according to the present invention, following certainly based on 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 in anode chamber, the anode electrode is vertical by several
The carbon brush of arrangement is constituted；Cathode electrode is provided in cathode chamber, the bamboo charcoal tube structure which is arranged vertically by several
At；Bubbling sieve is provided between anode chamber and cathode chamber；It is characterized by: the top of cathode chamber is with up-small and down-big
Taper, and vapor and liquid export is set on the top of cathode chamber, which passes through setting above pipeline one and cathode chamber
Memory is connected；The bubble diameter the same memory that the internal diameter and bubbling screen cylinder of pipeline one go out passes through pipeline two and anode chamber
It is connected.
The present invention has porous characteristic using the bamboo charcoal tube after carbonization, greatly increases contact of the electrode with electrolyte
Area promotes the reaction of cathode；Bamboo charcoal tube bank is arranged vertically the upward fortune for being conducive to bubble in bamboo charcoal tube and outside bamboo charcoal tube
It is dynamic, avoid the aggregation of air bubble；Bubbling increases disturbance, enhances the mass transfer between electrolyte and electrode, promotes
The progress of electrochemical reaction；Meanwhile the present invention relies on the density contrast of working medium as the transmission power of substance, makes full use of air
The difference in height of pump and memory and anode chamber realizes the Natural Circulation of substance, improves the performance of battery and reduces fortune
Row cost achievees the purpose that reduce energy consumption.In addition, anolyte and catholyte of the invention are identical electrolyte, adjust well
The pH value for having saved cathode and anode liquid improves battery performance, while it is useless without buffer to can be used for handling low concentration in practice
Water.
The preferred side of self-circulation air cathode microbial fuel cell according to the present invention based on bubble floating lift
Multiple vapor and liquid exports are arranged in case, the top of the cathode chamber, and each vapor and liquid export passes through respectively above pipeline one and cathode chamber
The memory of setting is connected.By adjusting vapor and liquid export quantity, achieve the purpose that adjust flow rate of liquid.
Second technical solution according to the present invention, it is a kind of to realize air cathode microbial fuel electricity using bubble floating lift
The method of pond self-loopa, characterized by the following steps:
The first, air cathode microbial fuel cell is established, which includes anode chamber and cathode chamber；The cathode
Chamber is located at the top of anode chamber, and cathode chamber is connected with anode chamber；Anode electrode is provided in anode chamber, it should
Anode electrode is made of several carbon brush being arranged vertically；Cathode electrode is provided in cathode chamber, the cathode electrode is by several
The bamboo charcoal tube of a vertical arrangement 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 vapor and liquid export is set on the top of cathode chamber, which passes through pipeline one and cathode chamber
The memory of top setting is connected；The internal diameter of the pipeline one is identical as the bubble diameter that screen cylinder goes out is bubbled；Memory passes through
Pipeline two is connected with anode chamber；
The second, electrolyte is injected in the anode chamber of battery and cathode chamber；
Third enters air to bubbling screen cylinder, is bubbled sieve and bloats air to form bubble, bubble rises anti-with bamboo charcoal tube generation
It answers；
4th, bubble enters pipeline electrolyte is driven to flow up together, and bubble and electrolyte pass through pipeline one and enters
Memory；
5th, the electrolyte in memory passes back into anode chamber by pipeline two.
The method according to the present invention for realizing air cathode microbial fuel cell self-loopa using bubble floating lift
Preferred embodiment, multiple vapor and liquid exports are arranged in the top of the cathode chamber, and each vapor and liquid export passes through pipeline one and cathode respectively
The memory being arranged above chamber is connected.
Self-circulation air cathode microbial fuel cell and method of the present invention based on bubble floating lift it is beneficial
Effect is: the present invention, as the transmission power of substance, makes full use of air pump and difference in height real by the density contrast of working medium
The Natural Circulation of existing substance, improves the performance of battery and reduces operating cost, achievees the purpose that reduce energy consumption；In addition, this
The anolyte and catholyte of invention are identical electrolyte, have adjusted the pH value of anode and cathode liquid well, improve battery performance,
It can be used for handling low concentration in practice without buffer waste water simultaneously；The present invention has at low cost, good conductivity, bubbly flow
The features such as resistance is small, pollution-free can be widely used in the fields such as the energy, chemical industry, environmental protection.
Detailed description of the invention
Fig. 1 is that the structure of the self-circulation air cathode microbial fuel cell of the present invention based on bubble floating lift 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 of the present invention based on bubble floating lift
Curve.
Fig. 4 is that the power of the self-circulation air cathode microbial fuel cell of the present invention based on bubble floating lift is close
It writes 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 12 phase of anode chamber
Connection；It is provided with anode electrode in anode chamber 12, the carbon brush 1 which is arranged vertically by several is constituted, all carbon
Brush is connected by the first titanium silk 10；It is provided with cathode electrode in cathode chamber 13, the cathode electrode is by several vertical arrangements
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, bubbling sieve 4 is connect 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 vapor and liquid export, the vapour is arranged on the top of cathode chamber 13
Liquid outlet is connected by pipeline 1 with the memory 9 being arranged above cathode chamber；4 bulging of internal diameter and bubbling sieve of pipeline one
Bubble diameter it is identical；Memory 9 is connected by pipeline two with the electrolyte inlet 7 of 12 bottom of anode chamber.
Referring to fig. 2, in a particular embodiment, multiple vapor and liquid exports are arranged in the top of the cathode chamber 13, and each vapour-liquid goes out
Mouth is connected by pipeline one with the memory 9 being arranged above cathode chamber respectively.By adjusting vapor and liquid export quantity and
The power of external air pump 6 achievees the purpose that adjust flow rate of liquid.
A method of air cathode microbial fuel cell self-loopa is realized using bubble floating lift, including is walked as follows
It is rapid:
The first, air cathode microbial fuel cell is established, which 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；It is set in anode chamber 12
It is equipped with anode electrode, the carbon brush 1 which is arranged vertically by several is constituted, and all carbon brush are connected by the first titanium silk 10
It connects；It is provided with cathode electrode in cathode chamber 13, the bamboo charcoal tube 2 which is arranged vertically by several is constituted, 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
It is provided with bubbling sieve 4, bubbling sieve 4 is connect by pipeline 5 with external air pump 6, to import air；The top of cathode chamber 13
Vapor and liquid export is set with up-small and down-big taper, and on the top of cathode chamber 13, which passes through pipeline 1 and yin
The memory 9 being arranged above the chamber of pole is connected；The internal diameter of pipeline one is identical as the bubble diameter for being bubbled 4 bulging of sieve；Memory 9
It is connected by pipeline two with the electrolyte inlet 7 of 12 bottom of anode chamber.
In a particular embodiment, multiple vapor and liquid exports, each vapor and liquid export difference are set on the top of the cathode chamber 13
It is connected by pipeline one with the memory 9 being arranged above cathode chamber.
The second, electrolyte is injected in the anode chamber of battery 12 and cathode chamber 13.
Third blasts air to sieve 4 is bubbled using air pump 6, is bubbled sieve 4 and bloats air to form bubble 3, on bubble 3
It rises and reacts with bamboo charcoal tube 2.
4th, bubble 3 enters pipeline 1 and electrolyte is driven 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 working principle of self-loopa is: the present invention blasts air to sieve 4 is bubbled using air pump 6, is bubbled
Sieve 4 bloats air to form bubble 3, and bubble 3 ascends into pipeline 1, since bubble diameter is identical as one diameter of pipeline, pipeline
Bubble is by buoyancy lift, gravity and surface tension effects in one, since buoyancy lift is much larger than gravity and surface tension, so that bubble
It is gradually increasing, bubbles entrain reactor electrolyte inside transmits upwards, and bubble 3 and electrolyte pass through pipeline 1 into memory
9, due to the difference in height of memory 9 and anode chamber 12, the electrolyte in memory 9 passes back into anode chamber by pipeline 2 14
12, realize self-loopa process.
As can be seen from figs. 3 and 4 maximum power density reaches when the flow velocity for being bubbled 4 bulging bubble of sieve is 52ml/min
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 have 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 cathode
Chamber (13)；The cathode chamber (13) is located at the top of anode chamber (12), and cathode chamber (13) and anode chamber (12)
It is connected；It is provided with anode electrode in anode chamber (12), the carbon brush (1) which is arranged vertically by several is constituted；
It is provided with cathode electrode in cathode chamber (13), the bamboo charcoal tube (2) which is arranged vertically by several is constituted；Anode cavities
Bubbling sieve (4) is provided between room (12) and cathode chamber (13)；It is characterized by: the top of cathode chamber (13) is with upper small
Big taper down, and vapor and liquid export is set on the top of cathode chamber (13), which passes through pipeline one (8) and cathode cavity
The memory (9) being arranged above room is connected；The internal diameter of pipeline one (8) is identical as the bubble diameter for being bubbled sieve (4) bulging, storage
Device (9) is connected by pipeline two with anode chamber (12).
2. the self-circulation air cathode microbial fuel cell according to claim 1 based on bubble floating lift, feature
Be: multiple vapor and liquid exports are arranged in the top of the cathode chamber (13), and each vapor and liquid export passes through pipeline one and cathode cavity respectively
The memory (9) being arranged above room is connected.
3. a kind of method for realizing air cathode microbial fuel cell self-loopa using bubble floating lift, it is characterised in that: packet
Include following steps:
The first, air cathode microbial fuel cell is established, which 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)；Anode cavities
It is provided with anode electrode in room (12), the carbon brush (1) which is arranged vertically by several is constituted；In cathode chamber (13)
It is provided with cathode electrode, the bamboo charcoal tube (2) which is arranged vertically by several is constituted；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) vapor and liquid export, memory (9) phase which passes through pipeline one (8) and setting above cathode chamber is arranged in top
Connection；The internal diameter of the pipeline one (8) is identical as bubble (3) diameter for being bubbled sieve (4) bulging；Memory (9) passes through pipeline two
(14) it is connected with anode chamber (12)；
The second, electrolyte is injected in the anode chamber of battery (12) and cathode chamber (13)；
Third blasts air to bubbling sieve (4), is bubbled sieve (4) and bloats air to be formed bubble (3), bubble (3) rises and bamboo charcoal
Pipe (2) reacts；
4th, bubble (3) enters pipeline one (8) and electrolyte is driven to flow up, and bubble (3) and electrolyte pass through pipeline one
(8) enter memory (9)；
5th, the electrolyte in memory (9) passes back into anode chamber (12) by pipeline two (14).
4. the side according to claim 3 for realizing air cathode microbial fuel cell self-loopa using bubble floating lift
Method, it is characterised in that: multiple vapor and liquid exports are arranged in the top of the cathode chamber (13), and each vapor and liquid export passes through pipeline one respectively
It is connected with the memory (9) being arranged above cathode chamber.
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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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| CN106654329B true CN106654329B (en) | 2019-01-22 |
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| 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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| 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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