CN202333046U - Microbial fuel cell for denitrificating and desulphurating - Google Patents

Microbial fuel cell for denitrificating and desulphurating Download PDF

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Publication number
CN202333046U
CN202333046U CN2011203301248U CN201120330124U CN202333046U CN 202333046 U CN202333046 U CN 202333046U CN 2011203301248 U CN2011203301248 U CN 2011203301248U CN 201120330124 U CN201120330124 U CN 201120330124U CN 202333046 U CN202333046 U CN 202333046U
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anode
cathode
negative electrode
denitrification
desulfurization
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Expired - Fee Related
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CN2011203301248U
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蔡靖
郑平
张吉强
孙培德
郭茂新
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Zhejiang Gongshang University
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Zhejiang Gongshang University
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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 utility model discloses a microbial fuel cell for denitrificating and desulphurating. The conventional microbial fuel cell has various defects. The microbial fuel cell for denitrificating and desulphurating disclosed by the utility model comprises a constant-temperature stirring system, a reaction system and a data collecting and monitoring system, wherein the constant-temperature stirring system is provided with a constant-temperature magnetic stirrer and a magnetic stirring bar; the reaction system is provided with an anode chamber, a cathode chamber and a proton exchange membrane; a water inlet pipe and a water outlet pipe are arranged on the side of each of the anode chamber and the cathode chamber; a lead wire fixing tube, a sampling pipe and a reference electrode fixing tube are arranged at the top of each of the anode chamber and the cathode chamber; a electricity generation matrix is contained in the anode chamber; free denitrificating and desulphurating microbes and a membrane-forming anode with denitrificating and desulphurating microbes are immersed in the electricity generation matrix; cathode electrolyte is contained in the cathode chamber, and a cathode is immersed in the cathode electrolyte; the proton exchange membrane is arranged between the cathode chamber and the anode chamber; and the data collecting and monitoring system is provided with a load, a data collector and a computer. The microbial fuel cell disclosed by the utility model can work continuously without air exposure and extra intermediates. Therefore, the functions of enitrificating and desulphurating wastewater synchronously and generating electricity can be achieved.

Description

The denitrification and desulfurization microbiological fuel cell
Technical field
The utility model relates to a kind of biological fuel cell, especially a kind of denitrification and desulfurization microbiological fuel cell.
Background technology
Microbiological fuel cell (Microbial fuel cell, MFC) be with microbe as catalyst, chemical energy is directly changed into the device of electric energy.It no longer merely with the polluter of waste water as process object, but regard a kind of energy source as.Use the MFC treatment process, not only purified sewage, and can obtain extra energy, in addition, it also has the energy transformation ratio height, can be under normal temperature, normal pressure advantage such as operation.Therefore in recent years, the MFC treatment process receives publicity day by day, becomes the advanced subject and research focus in environmental protection field, has immeasurable development potentiality.
Its concrete course of work is: the microbial metabolism matrix in the anode chamber produces electronics and proton.Electronics directly or indirectly (through mediator) is delivered to anode, arrives negative electrode via external circuit again.Proton then is penetrated into cathode chamber through film.In cathode chamber, proton, electronics and electron acceptor water generation reaction.There is potential difference in negative and positive between the two poles of the earth, thereby produce trappable electric energy.Present most microbiological fuel cell is electrogenesis matrix with the organic substance, and the electrogenesis microbe is a facultative anaerobe, and battery configuration is divided into two types of two chambers and single chambers usually.There is following shortcoming in these microbiological fuel cells: (1) is in the amphimicrobian electrogenesis bacterium of having found; Except that corrupt Shiva Salmonella, iron vat red spirillum, several kinds of bacteriums such as bacillus; The electron transport efficient of all the other electrogenesis bacterium is very low; Need extra interpolation dimethyl diaminophenazine chloride, 2, electron mediums such as 6-anthraquinone come the strengthening electronic transmission, and mediator is poisonous mostly and price is higher; (2) electrogenesis matrix is organic substance, and conductivity is low, and the internal resistance of cell is big, and electrogenesis efficient is low, needs extra interpolation inorganic ions to strengthen its conductivity sometimes; (3) operational mode is main with intermittent duty, and closed circuit voltage changes greatly in the cycle of operation, can not stablize output.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of denitrification and desulfurization microbiological fuel cell is provided.
The utility model comprises constant temperature stirring system, reaction system and data acquisition and monitoring system.
The constant temperature stirring system comprises constant temperature blender with magnetic force and magnetic agitation;
Reaction system comprises anode reaction chamber, cathode reaction chambers and PEM; Described anode reaction chamber and cathode reaction chambers are the square box of one side open, five face closures; The one side that the anode reaction chamber is opened is corresponding with the one side that cathode reaction chambers is opened; Be provided with sealing ring between anode reaction chamber and the cathode reaction chambers evolution face and pass through the flange connection, PEM is fixed between anode reaction chamber and the cathode reaction chambers with sealing ring; Anode reaction chamber and cathode reaction chambers are provided with magnetic agitation;
One side of anode reaction chamber is provided with anode water inlet pipe and anode outlet pipe; The indoor electrogenesis matrix that is equipped with of anode reaction; Be soaked with denitrification and desulfurization microbe and the extension film anode that adheres to the denitrification and desulfurization microbe in the electrogenesis matrix, top, anode reaction chamber is provided with positive wire stationary pipes, anode probe tube and anode reference electrode stationary pipes;
One side of cathode reaction chambers is provided with negative electrode water inlet pipe and negative electrode outlet pipe, and the indoor catholyte that is equipped with of cathode reaction is soaked with negative electrode in the catholyte, and the cathode reaction chambers top is provided with cathode wire stationary pipes, negative electrode probe tube and negative electrode reference electrode stationary pipes;
The data acquisition and monitoring system comprises load, data acquisition unit and computer; The load two ends are connected with negative electrode with extension film anode respectively through lead; Data acquisition unit is gathered the signal of telecommunication at load two ends, and computer is connected with data acquisition unit, the signal of telecommunication that the deal with data collector is gathered.
Described electrogenesis matrix is the waste water that contains sulfide, nitrate or nitrite, and the pH value is 7.0～7.5.
The length and width height ratio of described anode reaction chamber and cathode reaction chambers is 1～2:1:1～3; The indoor electrogenesis matrix volume of anode reaction is 2/3～3/4 of an anode reaction chamber volume, and the intramatrical denitrification and desulfurization microbe of electrogenesis volume is 1/3～1/5 of an electrogenesis matrix volume; The indoor catholyte volume of cathode reaction is 2/3～3/4 of a cathode reaction chambers volume.
The electric conducting material of described extension film anode and negative electrode is a kind of in carbon paper, carbon cloth, carbon felt, graphite felt, the graphite cake; Hang the film anode surface and be attached with the denitrification and desulfurization biomembrane; The distance of hanging between film anode and the negative electrode is 3～6cm, and the surface area of the extension film anode that anode reaction is indoor is 9～40 m with the ratio of anode reaction chamber volume 2: 1 m 3, the surface area of the negative electrode that cathode reaction is indoor is 9～40 m with the ratio of cathode reaction chambers volume 2: 1 m 3
The utility model is the electrogenesis microbe with the denitrification and desulfurization microbe, need not to add electron medium; With the waste water that contains sulfide and nitrate (or nitrite) is electrogenesis matrix; Can move continuously, need not the imposed aeration device, need not to add electron medium; Both can remove sulfide and nitrate (or nitrite) simultaneously, and can produce stable electric energy again.
The utlity model has following beneficial effect: (1) utilizes the denitrification and desulfurization microbe to carry out waste water treatment and biological electrogenesis, can realize that contaminated wastewater is controlled and electrical energy production is carried out simultaneously; (2) electrogenesis matrix is inorganic ions, and the internal resistance of cell is low, and battery performance is good, and electrogenesis efficient is high; (3) operational mode is the water of being back to back, and not only is convenient to operation and management, and exportable stable electric energy.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein: constant temperature blender with magnetic force 1; Magnetic agitation 2; Anode water inlet pipe 3; Denitrification and desulfurization microbe 4; Anode outlet pipe 5; Anode reaction chamber 6; Electrogenesis matrix 7; Hang film anode 8; Anode sample tap 9; Positive wire stationary pipes 10; Anode reference electrode stationary pipes 11; Lead 12; Sealing ring 13; Load 14; PEM 15; Negative electrode probe tube 16; Cathode wire stationary pipes 17; Negative electrode reference electrode stationary pipes 18; Negative electrode 19; Catholyte 20; Negative electrode outlet pipe 21; Cathode reaction chambers 22; Negative electrode water inlet pipe 23; Data acquisition unit 24; Computer 25.
Embodiment
As shown in Figure 1, a kind of denitrification and desulfurization microbiological fuel cell comprises constant temperature stirring system, reaction system and data acquisition and monitoring system.
The constant temperature stirring system comprises constant temperature blender with magnetic force 1 and magnetic agitation 2.
Reaction system comprises anode reaction chamber 6, cathode reaction chambers 23 and PEM 15, and anode reaction chamber 6 and cathode reaction chambers 23 are the square box of one side open, five face closures, and the length and width height ratio of square box is 1～2:1:1～3.The one side that anode reaction chamber 6 is opened is corresponding with the one side that cathode reaction chambers 23 is opened; Be provided with sealing ring 13 between anode reaction chamber 23 and the cathode reaction chambers 6 evolution faces and pass through the flange connection, PEM 15 usefulness sealing rings 13 are fixed between anode reaction chamber 23 and the cathode reaction chambers 6; Anode reaction chamber 23 is provided with magnetic agitation 2 with cathode reaction chambers 6.
One side of anode reaction chamber 6 is provided with anode water inlet pipe 3 and anode outlet pipe 5.Electrogenesis matrix 7 is housed in the anode reaction chamber 6, and electrogenesis matrix 7 is for containing the waste water of sulfide, nitrate or nitrite, and the pH value is 7.0～7.5, and electrogenesis matrix 7 volumes are 2/3～3/4 of anode reaction chamber 6 volumes.Be soaked with denitrification and desulfurization microbe 4 and the extension film anode 8 that adheres to the denitrification and desulfurization microbe in the electrogenesis matrix 7.Denitrification and desulfurization microbe 4 volumes are 1/3～1/5 of electrogenesis matrix 7 volumes.The electric conducting material of hanging film anode 8 is a kind of in carbon paper, carbon cloth, carbon felt, graphite felt, the graphite cake, and surface attachment has the denitrification and desulfurization biomembrane, and the surface area of hanging film anode 8 is 9～40 m with the ratio of anode reaction chamber 6 volumes 2: 1 m 36 tops, anode reaction chamber are provided with positive wire stationary pipes 10, anode probe tube 9 and anode reference electrode stationary pipes 11.
Cathode reaction chambers 22 1 sides are provided with negative electrode water inlet pipe 23 and negative electrode outlet pipe 21, and catholyte 20 is housed in the cathode reaction chambers 23, and catholyte 20 volumes are 2/3～3/4 of cathode reaction chambers 23 volumes.Be soaked with negative electrode 19 in the catholyte 20, the electric conducting material of negative electrode 19 is a kind of in carbon paper, carbon cloth, carbon felt, graphite felt, the graphite cake, and the surface area of negative electrode 19 is 9～40 m with the ratio of cathode reaction chambers 23 volumes 2: 1 m 3, negative electrode 19 and the distance of hanging between the film anode 8 are 3～6cm.Cathode reaction chambers 23 tops are provided with cathode wire stationary pipes 17, negative electrode probe tube 16 and negative electrode reference electrode stationary pipes 18.
The data acquisition and monitoring system comprises load 14, data acquisition unit 24 and computer 25; Load 14 two ends are connected with negative electrode 19 with extension film anode 8 respectively through lead 12; Data acquisition unit 24 is gathered the signal of telecommunication at load 14 two ends; Computer 25 is connected with data acquisition unit 24, the signal of telecommunication that deal with data collector 24 is gathered.
During work, open constant temperature blender with magnetic force, drive magnetic agitation, make that the denitrification and desulfurization microbe fully contacts with electrogenesis matrix in the anode reaction chamber, catholyte in the cathode reaction chambers is mixed.It is indoor that the waste water that will contain sulfide, nitrate or nitrite is continuously pumped into anode reaction from the anode water inlet pipe.Under the denitrification and desulfurization microbial action, electrogenesis matrix sulfide is oxidized to elemental sulfur, and nitrate (or nitrite) is reduced to nitrogen, and processed waste water is discharged through the anode outlet pipe.Catholyte is pumped into the cathode reaction chambers from the negative electrode water inlet pipe, and unnecessary catholyte refluxes from the negative electrode outlet pipe, and catholyte is reusable.The electronics that in the denitrification and desulfurization process, discharges is by hanging the collection of film anode and being delivered to negative electrode through the external circuit lead.The signal of telecommunication that reaction system produces is collected by data acquisition unit, and is transferred in the line computer, and through the change in electric ruuning situation of monitoring reaction system simultaneously, the process of being convenient to is in time regulated and control.

Claims (5)

1. the denitrification and desulfurization microbiological fuel cell comprises constant temperature stirring system, reaction system and data acquisition and monitoring system, it is characterized in that:
Described constant temperature stirring system comprises constant temperature blender with magnetic force and magnetic agitation;
Described reaction system comprises anode reaction chamber, cathode reaction chambers and PEM; Described anode reaction chamber and cathode reaction chambers are the square box of one side open, five face closures; The one side that the anode reaction chamber is opened is corresponding with the one side that cathode reaction chambers is opened; Be provided with sealing ring between anode reaction chamber and the cathode reaction chambers evolution face and pass through the flange connection, PEM is fixed between anode reaction chamber and the cathode reaction chambers with sealing ring; Anode reaction chamber and cathode reaction chambers are provided with magnetic agitation;
One side of anode reaction chamber is provided with anode water inlet pipe and anode outlet pipe; The indoor electrogenesis matrix that is equipped with of anode reaction; Be soaked with denitrification and desulfurization microbe and the extension film anode that adheres to the denitrification and desulfurization microbe in the electrogenesis matrix, top, anode reaction chamber is provided with positive wire stationary pipes, anode probe tube and anode reference electrode stationary pipes; Described electrogenesis substrate pH value is 7.0～7.5;
One side of cathode reaction chambers is provided with negative electrode water inlet pipe and negative electrode outlet pipe, and the indoor catholyte that is equipped with of cathode reaction is soaked with negative electrode in the catholyte, and the cathode reaction chambers top is provided with cathode wire stationary pipes, negative electrode probe tube and negative electrode reference electrode stationary pipes;
Described data acquisition and monitoring system comprises load, data acquisition unit and computer; The load two ends are connected with negative electrode with extension film anode respectively through lead; Data acquisition unit is gathered the signal of telecommunication at load two ends, and computer is connected with data acquisition unit, the signal of telecommunication that the deal with data collector is gathered.
2. denitrification and desulfurization microbiological fuel cell as claimed in claim 1 is characterized in that: the length and width height ratio of described anode reaction chamber and cathode reaction chambers is 1～2:1:1～3.
3. denitrification and desulfurization microbiological fuel cell as claimed in claim 1; It is characterized in that: the indoor electrogenesis matrix volume of anode reaction is 2/3～3/4 of an anode reaction chamber volume, and the intramatrical denitrification and desulfurization microbe of electrogenesis volume is 1/3～1/5 of an electrogenesis matrix volume; The indoor catholyte volume of cathode reaction is 2/3～3/4 of a cathode reaction chambers volume.
4. denitrification and desulfurization microbiological fuel cell as claimed in claim 1; It is characterized in that: the electric conducting material of described extension film anode and negative electrode is a kind of in carbon paper, carbon cloth, carbon felt, graphite felt, the graphite cake; Hang the film anode surface and be attached with the denitrification and desulfurization biomembrane, the distance of hanging between film anode and the negative electrode is 3～6cm.
5. denitrification and desulfurization microbiological fuel cell as claimed in claim 1 is characterized in that: the surface area of the extension film anode that anode reaction is indoor is 9～40 m with the ratio of anode reaction chamber volume 2: 1 m 3, the surface area of the negative electrode that cathode reaction is indoor is 9～40 m with the ratio of cathode reaction chambers volume 2: 1 m 3
CN2011203301248U 2011-09-05 2011-09-05 Microbial fuel cell for denitrificating and desulphurating Expired - Fee Related CN202333046U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614286A (en) * 2013-12-11 2014-03-05 重庆绿色智能技术研究院 Method and device for cultivating high-concentration photosynthetic bacteria with low illumination
CN103613206A (en) * 2013-12-04 2014-03-05 江南大学 Microorganism electrochemical denitrification method for enhancing bio-hydrogen production

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613206A (en) * 2013-12-04 2014-03-05 江南大学 Microorganism electrochemical denitrification method for enhancing bio-hydrogen production
CN103613206B (en) * 2013-12-04 2015-04-15 江南大学 Microorganism electrochemical denitrification method for enhancing bio-hydrogen production
CN103614286A (en) * 2013-12-11 2014-03-05 重庆绿色智能技术研究院 Method and device for cultivating high-concentration photosynthetic bacteria with low illumination

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Granted publication date: 20120711

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