CN202888322U - Nitrification microbial fuel cell - Google Patents
Nitrification microbial fuel cell Download PDFInfo
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- CN202888322U CN202888322U CN201220403849XU CN201220403849U CN202888322U CN 202888322 U CN202888322 U CN 202888322U CN 201220403849X U CN201220403849X U CN 201220403849XU CN 201220403849 U CN201220403849 U CN 201220403849U CN 202888322 U CN202888322 U CN 202888322U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a nitrification microbial fuel cell which comprises an positive pole chamber, a negative pole chamber and a proton exchange membrane, wherein the positive pole chamber is provided with a cubic reactor and a sealing cover; a water inlet pipe is arranged at the lower part of the cubic reactor, and a water outlet pipe is arranged at the upper part of the cubic reactor; the middle part of the cubic reactor is provided with an aeration area, a reaction area and a separation board, the aeration area is separated from the reaction area by the separation board, and the aeration area and the reaction area are communicated with each other up and down and are respectively filled with an electricity production substrate which is internally provided with a nitrifying bacteria membrane-hanging positive pole; the sealing cover arranged on the top of the reaction area is provided with an positive pole conductor fixing pipe; the bottom of the aeration area is provided with an air distribution pipe; the negative pole chamber is provided with a cubic reactor and a sealing cover; a water inlet pipe is arranged at the lower part of the cubic reactor, and a water outlet pipe is arranged at the upper part of the cubic reactor; the cubic reactor is soaked into catholyte; a negative pole is arranged in the catholyte; and the sealing cover arranged on the top is provided with a negative pole conductor fixing pipe. The nitrification microbial fuel cell adopts inorganic substance ammonia as raw material, is simple in structure, mild in operation conditions, low in internal resistance, good in electricity production efficiency and high in energy utilization rate, and achieves waste water nitrification and biological electricity production at the same time.
Description
Technical field
The utility model relates to microbiological fuel cell, especially a kind of nitrated microbiological fuel cell.
Background technology
In last century, fossil fuel has supported the development of global economy, but fossil fuel is non-renewable, will exhaust 100 years futures or slightly for a long time.In using energy source, " increasing income and decreasing expenditure " work is put in face of people realistically.Biological fuel cell (Microbial fuel cell, MFC) be with enzyme or microbe as catalyst, chemical energy is directly changed into the device of electric energy.The MFC technology has that raw material sources are extensive, and matrix changes electric energy into, and operating condition is gentle, and operating cost is lower, does not produce the plurality of advantages such as pernicious gas, is acknowledged as the green regenerative energy sources that has DEVELOPMENT PROSPECT and utilizes technology.
Usually be ammoxidation that the biological respinse of nitrite or nitrate calls the biological nitration effect, referred to as nitrification (nitrification).Nitrification is a serial response, is ammoxidation nitrite by ammonia oxidation bacteria first, by NOB nitrite-oxidizing is become nitrate again.Nitration processes (nitrification process) is by engineering measure, utilizes the effect of autotrophic type nitrifier with the processing method of the ammoxidation in the waste water for nitrate.Nitration processes is born in 20 middle of century, and along with going deep into of research and popularizing of application, the type of nitration processes is on the increase, and treatment efficiency improves constantly, and has become an important wastewater biological denitrificaion technology.Ammonia is the matrix of nitrification, is in the highest reduction-state, is being oxidized to as electron donor in the process of nitrate, discharges altogether 8 electronics.Wherein 2 electronics are used for the azanol building-up process, and to start ammoxidation reaction, all the other electronics pass to terminal oxidase by the respiratory chain of ammonia oxidation bacteria and nitrous acid oxidation bacterium, finally transmit oxygen supply; And in electron transfer process, realize oxidative phosphorylation, synthesize ATP.Hence one can see that, and ammonia is the same with organic substance, is the electron donor of biological respinse and the energy substance of biological growth; As ammonia oxidation bacteria and the nitrous acid oxidation bacterium of nitration reaction catalyst, have and electron mediator and electron transport chain like the heterotroph electrogenesis microbial.Yet up to now, being seen MFC is mainly take organic substance as the energy, rare MFC take inorganic matter as the energy; Particularly based on the MFC of nitrification, indivedual reports are only arranged at present, and the MFC that reports exists the battery structure complexity, operating condition is harsh, battery performance is relatively poor, the low inferior defective of energy utilization rate.
For the defects of existing microbiological fuel cell, the utility model has been realized the electrogenesis take inorganic matter ammonia as fuel take ammonia oxidation bacteria and nitrous acid oxidation bacterium as the electrogenesis bacterium; Electrogenesis matrix is inorganic ions, and the internal resistance of cell is low, does not discharge the greenhouse gases carbon dioxide in the electricity generation process, is a kind of clean energy resource process units; Be provided with interior circulation nitrator in the anode chamber, the nitrated microbiological fuel cell of constructed double chamber type is simple in structure, operating condition is gentle, the anolyte reaction chamber device is the subregion aeration only, can provide and start the needed dissolved oxygen of ammoxidation reaction, can prevent that again oxygen concentration is too high, cause the electronics loss; Take strong oxidizer potassium permanganate as catholyte, cathode potential is high, and battery performance is better, and energy utilization rate is higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of nitrated microbiological fuel cell is provided.
Nitrated microbiological fuel cell is comprised of anode chamber, cathode chamber and proton exchange membrane; Be connected with cathode chamber and be provided with proton exchange membrane and connect by flange in the anode chamber; The anode chamber is provided with anode chamber's cube reactor and seal cover, connects by flange between anode chamber's cube reactor and the seal cover; The cube reactor lower part is provided with water inlet pipe, and cube reactor top is provided with outlet pipe, and cube reactor middle part is provided with aeration zone, reaction zone and division board, and aeration zone and reaction zone are separated by division board, are communicated with up and down and filled electrogenesis matrix; Place nitrifier biofilm anode in the electrogenesis matrix, the reaction zone top seal covers and is provided with the positive wire stationary pipes; The bottom, aeration zone is provided with gas distribution pipe; Cathode chamber is provided with cathode chamber cube reactor and seal cover, connects by flange between cathode chamber cube reactor and the seal cover; Cathode chamber cube reactor lower part is provided with water inlet pipe, and cathode chamber cube reactor top is provided with outlet pipe, and cathode chamber cube reactor is soaked with catholyte; Place negative electrode in the cube reactor catholyte, top seal covers and is provided with the cathode wire stationary pipes.
Described electrogenesis matrix is the inorganic wastewater that contains ammonium chloride, and the pH value is 8.0 ~ 8.5, wherein adds 2.0 g/L KHCO
3, 0.35 g/L K
2HPO
4, 0.35 g/L Na
2HPO
4With 0.25 mL/L inorganic salt solution; The inorganic salt solution composition is: CaCl
2.2H
2O, 7.34 g/L; MgCl
2.6H
2O, 25.07 g/L; FeCl
3.6H
2O, 4.8 g/L; MnCl
2.4H
2O, 1.03 g/L; ZnCl
2.2H
2O, 0.01 g/L; CuCl
2.2H
2O, 0.112 g/L; NaMoO
4.2H
2O, 0.0025 g/L.
Described catholyte is liquor potassic permanganate, and the pH value is 6.9 ~ 7.1, wherein adds 0.2 g/L KMnO
4, 0.35 g/L K
2HPO
4With 0.35 g/L Na
2HPO
4
Described anode chamber cube reactor is the same with cathode chamber cube reactor size dimension, and long the ratio of width to height is 2.0:1.0:2.0; Described electrogenesis matrix volume accounts for 2/3～3/4 of anode chamber's cube reactor volume; The ratio of cube reactor aeration zone, middle part, described anode chamber and reaction zone cross section is 1.0:2.0; Division board upper end, cube reactor middle part, described anode chamber is than low 1.0 cm of outlet pipe, and the lower end is than high 1.0 cm of anode chamber's cube reactor bottom; Described catholyte volume accounts for 2/3～3/4 of cathode chamber cube reactor volume.
The electric conducting material of described nitrifier biofilm anode is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake, surface attachment has the nitrifier biomembrane, biofilm anode lower end is 1 ~ 2 cm apart from anode chamber's cube reactor bottom, and the biofilm anode surface area is 10 ~ 40 m with the ratio of anode chamber's cube reactor volume
2: 1 m
3Described negative electrode electric conducting material is graphite rod, and cathodic surface area is 4 ~ 10 m with the ratio of cathode chamber cube reactor volume
2: 1 m
3
The utility model beneficial effect compared with prior art is: 1) take inorganic matter as fuel, utilize ammonia oxidation bacteria and nitrous acid oxidation bacterium to carry out denitrogenation of waste water and biological electrogenesis, can realize simultaneously contaminated wastewater control and electrogenesis.2) electrogenesis matrix is inorganic ions, and the internal resistance of cell is low, does not discharge the greenhouse gases carbon dioxide in the electricity generation process, is a kind of clean energy resource process units.3) anode chamber is provided with interior circulation nitrator, the nitrated microbiological fuel cell of constructed double chamber type is simple in structure, operating condition is gentle, the anolyte reaction chamber device is the subregion aeration only, can provide and start the needed dissolved oxygen of ammoxidation reaction, can prevent that again oxygen concentration is too high, cause the electronics loss.4) take strong oxidizer potassium permanganate as catholyte, cathode potential is high, and battery performance is better, and energy utilization rate is higher.
Description of drawings
Fig. 1 is nitrated microbiological fuel cell structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Among the figure: the I of anode chamber, cathode chamber II, proton exchange membrane III; Seal cover 1, anode chamber's cube reactor 2, aeration zone 3, reaction zone 4, division board 5, water inlet pipe 6, outlet pipe 7, gas distribution pipe 8, biofilm anode 9, negative electrode 10, flange 11, flange 12, electrogenesis matrix 13, cathode chamber cube reactor 14, catholyte 15, positive wire stationary pipes 16, seal cover 17, cathode wire stationary pipes 18, flange 19, water inlet pipe 20, outlet pipe 21.
Embodiment
As shown in Figure 1, 2, nitrated microbiological fuel cell is comprised of the I of anode chamber, cathode chamber II and proton exchange membrane III; The I of anode chamber is connected with cathode chamber II and is provided with proton exchange membrane III and connects by flange 12; The I of anode chamber is provided with anode chamber's cube reactor 2 and seal cover 1, connects by flange 11 between anode chamber's cube reactor 2 and the seal cover 1; Cube reactor 2 bottoms are provided with water inlet pipe 6, and cube reactor top is provided with outlet pipe 7, and cube reactor middle part is provided with aeration zone 3, reaction zone 4 and division board 5, and aeration zone 3 and reaction zone 4 by division board 5 separately are communicated with up and down and filled electrogenesis matrix 13; Place nitrifier biofilm anode 9 in the electrogenesis matrix 13, reaction zone top seal lid 1 is provided with positive wire stationary pipes 16; 3 bottoms, aeration zone are provided with gas distribution pipe 8; Cathode chamber II is provided with cathode chamber cube reactor 14 and seal cover 17, connects by flange 19 between cathode chamber cube reactor 14 and the seal cover 17; Cathode chamber cube reactor 14 bottoms are provided with water inlet pipe 20, and cathode chamber cube reactor 14 tops are provided with outlet pipe 21, and cathode chamber cube reactor 14 is soaked with catholyte 15; Place negative electrode 10 in the cube reactor catholyte 15, top seal lid 17 is provided with cathode wire stationary pipes 18.
Described electrogenesis matrix 13 is for containing the inorganic wastewater of ammonium chloride, and the pH value is 8.0 ~ 8.5, wherein adds 2.0 g/L KHCO
3, 0.35 g/L K
2HPO
4, 0.35 g/L Na
2HPO
4With 0.25 mL/L inorganic salt solution; The inorganic salt solution composition is: CaCl
2.2H
2O, 7.34 g/L; MgCl
2.6H
2O, 25.07 g/L; FeCl
3.6H
2O, 4.8 g/L; MnCl
2.4H
2O, 1.03 g/L; ZnCl
2.2H
2O, 0.01 g/L; CuCl
2.2H
2O, 0.112 g/L; NaMoO
4.2H
2O, 0.0025 g/L.
Described catholyte 15 is liquor potassic permanganate, and the pH value is 6.9 ~ 7.1, wherein adds 0.2 g/L KMnO
4, 0.35 g/L K
2HPO
4With 0.35 g/L Na
2HPO
4
Described anode chamber cube reactor 2 is the same with cathode chamber cube reactor 14 size dimensions, and long the ratio of width to height is 2.0:1.0:2.0; Described electrogenesis matrix 13 volumes account for 2/3～3/4 of anode chamber's cube reactor 2 volumes; The ratio of aeration zone 3, cube reactor 2 middle part, described anode chamber and reaction zone 4 cross sections is 1.0:2.0; Cube reactor 2 middle part division boards 5 upper ends, described anode chamber are than low 1.0 cm of outlet pipe (7), and the lower end is than high 1.0 cm in anode chamber's cube reactor (2) bottom; Described catholyte 15 volumes account for 2/3～3/4 of cathode chamber cube reactor 14 volumes.
The electric conducting material of described nitrifier biofilm anode 9 is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake, surface attachment has the nitrifier biomembrane, biofilm anode 9 lower ends are 1 ~ 2 cm apart from cube reactor 2 bottoms, anode chamber, and biofilm anode 9 surface areas are 10 ~ 40 m with the ratio of anode chamber's cube reactor 2 volumes
2: 1 m
3Described negative electrode 10 electric conducting materials are graphite rod, and negative electrode 10 surface areas are 4 ~ 10 m with the ratio of cathode chamber cube reactor 14 volumes
2: 1 m
3
After nitrated microbiological fuel cell was connected external circuit, the beginning aeration dissolved in certain density oxygen in the reactant liquor in the cube reactor aeration zone, anode chamber, and simultaneous reactions liquid is promoted by bubble, overflows across the division board top and enters reaction zone; Nitrifier on the anode utilizes dissolved oxygen limited in the reactant liquor to start ammoxidation reaction and generates azanol, azanol is further converted to nitrite and nitrate, the electronics that discharges passes to anode by respiratory chain, then by positive wire, external circuit and cathode wire electronics is passed to negative electrode, the proton that the Simultaneous Nitrification reaction discharges passes proton membrane and arrives cathode chamber under the electric field force effect, electronics and proton participate in the reduction reaction of potassium permanganate at cathode surface, finish thus nitrated and electricity generation process.
Claims (3)
1. nitrated microbiological fuel cell, it is characterized in that: nitrated microbiological fuel cell is comprised of anode chamber (I), cathode chamber (II) and proton exchange membrane (III); II is connected in anode chamber (I) with cathode chamber) in the middle of be provided with proton exchange membrane (III) and connect by flange (12); Anode chamber (I) is provided with anode chamber's cube reactor (2) and seal cover (1), connects by flange (11) between anode chamber's cube reactor (2) and the seal cover (1); Cube reactor (2) bottom is provided with water inlet pipe (6), cube reactor top is provided with outlet pipe (7), cube reactor middle part is provided with aeration zone (3), reaction zone (4) and division board (5), aeration zone (3) and reaction zone (4) by division board (5) separately are communicated with up and down and filled electrogenesis matrix (13); Place nitrifier biofilm anode (9) in the electrogenesis matrix (13), reaction zone top seal lid (1) is provided with positive wire stationary pipes (16); Bottom, aeration zone (3) is provided with gas distribution pipe (8); Cathode chamber (II) is provided with cathode chamber cube reactor (14) and seal cover (17), connects by flange (19) between cathode chamber cube reactor (14) and the seal cover (17); Cathode chamber cube reactor (14) bottom is provided with water inlet pipe (20), and cathode chamber cube reactor (14) top is provided with outlet pipe (21), and cathode chamber cube reactor (14) is soaked with catholyte (15); Place negative electrode (10) in the cube reactor catholyte (15), top seal lid (17) is provided with cathode wire stationary pipes (18).
2. a kind of nitrated microbiological fuel cell according to claim 1, it is characterized in that: described anode chamber's cube reactor (2) is the same with cathode chamber cube reactor (14) size dimension, and long the ratio of width to height is 2.0:1.0:2.0; Described electrogenesis matrix (13) volume accounts for 2/3～3/4 of anode chamber's cube reactor (2) volume; The ratio of described anode chamber's cube reactor (2) aeration zone (3), middle part and reaction zone (4) cross section is 1.0:2.0; Described anode chamber's cube reactor (2) middle part division board (5) upper end is than low 1.0 cm of outlet pipe (7), and the lower end is than high 1.0 cm in anode chamber's cube reactor (2) bottom; Described catholyte (15) volume accounts for 2/3～3/4 of cathode chamber cube reactor (14) volume.
3. a kind of nitrated microbiological fuel cell according to claim 1, it is characterized in that: the electric conducting material of described nitrifier biofilm anode (9) is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake, surface attachment has the nitrifier biomembrane, biofilm anode (9) lower end is 1 ~ 2 cm apart from anode chamber's cube reactor (2) bottom, and the ratio of biofilm anode (9) surface area and anode chamber's cube reactor (2) volume is 10 ~ 40 m
2: 1 m
3Described negative electrode (10) electric conducting material is graphite rod, and the ratio of negative electrode (10) surface area and cathode chamber cube reactor (14) volume is 4 ~ 10 m
2: 1 m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220403849XU CN202888322U (en) | 2012-08-15 | 2012-08-15 | Nitrification microbial fuel cell |
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|---|---|---|---|
| CN201220403849XU CN202888322U (en) | 2012-08-15 | 2012-08-15 | Nitrification microbial fuel cell |
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| CN202888322U true CN202888322U (en) | 2013-04-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800883A (en) * | 2012-08-15 | 2012-11-28 | 浙江大学 | Nitrification microbial fuel cell |
| CN105552416A (en) * | 2016-01-13 | 2016-05-04 | 山东星火科学技术研究院 | Microbiological fuel battery |
| CN107159059A (en) * | 2017-07-13 | 2017-09-15 | 衡阳屹顺化工有限公司 | A kind of reactor for chemical industry |
| CN107954523A (en) * | 2017-11-24 | 2018-04-24 | 广东工业大学 | A kind of method of bioelectrochemical system and wastewater treatment |
-
2012
- 2012-08-15 CN CN201220403849XU patent/CN202888322U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800883A (en) * | 2012-08-15 | 2012-11-28 | 浙江大学 | Nitrification microbial fuel cell |
| CN105552416A (en) * | 2016-01-13 | 2016-05-04 | 山东星火科学技术研究院 | Microbiological fuel battery |
| CN107159059A (en) * | 2017-07-13 | 2017-09-15 | 衡阳屹顺化工有限公司 | A kind of reactor for chemical industry |
| CN107954523A (en) * | 2017-11-24 | 2018-04-24 | 广东工业大学 | A kind of method of bioelectrochemical system and wastewater treatment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20180815 |