CN102800883A - Nitrification microbial fuel cell - Google Patents
Nitrification microbial fuel cell Download PDFInfo
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- CN102800883A CN102800883A CN2012102900405A CN201210290040A CN102800883A CN 102800883 A CN102800883 A CN 102800883A CN 2012102900405 A CN2012102900405 A CN 2012102900405A CN 201210290040 A CN201210290040 A CN 201210290040A CN 102800883 A CN102800883 A CN 102800883A
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- 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
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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
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Abstract
The invention discloses a nitrification microbial fuel cell, which is composed of an anode chamber, a cathode chamber and a proton exchange membrane. The anode chamber is provided with a cubical reactor and a sealing cover. The lower part of the cubical reactor is provided with a water inlet pipe, the upper part is provided with a water outlet pipe, and the middle part is provided with an aeration zone, a reaction zone and an isolation board isolating the aeration zone from the reaction zone. The upper part of the cubical reactor is communicated with the lower part, and an electrogenesis matrix is filled into the cubical reactor. A nitrobacterium biofilm formation anode is placed in the electrogenesis matrix. An anode lead fixing pipe is disposed on the sealing cover at the top of the reaction zone. A gas distribution pipe is arranged at the bottom of the aeration zone. The cathode chamber is equipped with a cubical reactor and a sealing cover. The lower part of the cubical reactor is equipped with a water inlet pipe, and the upper part is equipped with a water outlet pipe. The cubical reactor is steeped with a cathode solution, in which a cathode is placed, and the top sealing cover is equipped with a cathode lead fixing pipe. With the inorganic matter ammonia as the raw material, the invention has the advantages of simple structure, mild operation condition, small internal resistance, good electrogenesis efficiency, high energy utilization rate, and simultaneous realization of wastewater nitrification and biological electrogenesis.
Description
Technical field
The present invention relates to microbiological fuel cell, especially a kind of nitrated microbiological fuel cell.
Background technology
In last century, fossil fuel has supported 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 plurality of advantages such as pernicious gas, and it is technological to be acknowledged as green regenerative energy sources utilizations that has DEVELOPMENT PROSPECT.
Usually be ammoxidation that the biological respinse of nitrite or nitrate calls the biological nitration effect, abbreviate nitrification (nitrification) as.Nitrification is a serial response, is ammoxidation nitrite by ammonia oxidation bacteria earlier, becomes nitrate to nitrite-oxidizing by NOB again.Nitration processes (nitrification process) is through engineering measure, and the effect that utilizes the autotrophic type nitrifier is 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 ortho states of going back, and is being oxidized to as electron donor in the process of nitrate, discharges 8 electronics altogether.Wherein 2 electronics are used for the azanol building-up process, and to start ammoxidation reaction, all the other electronics pass to terminal oxidase through 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; Ammonia oxidation bacteria and nitrous acid oxidation bacterium as the nitration reaction catalyst have electron mediator and the electron transport chain similar with heterotroph electrogenesis microbe.Yet up to now, being seen MFC mainly is the energy with the organic substance, and rare is the MFC of the energy with the inorganic matter; Particularly, indivedual reports are only arranged at present, and the MFC that is reported exists the battery structure complicacy, operating condition is harsh, battery performance is relatively poor, the low inferior defective of energy utilization rate based on the MFC of nitrification.
To the above-mentioned defective of existing microbiological fuel cell, the present invention is the electrogenesis bacterium with ammonia oxidation bacteria and nitrous acid oxidation bacterium, has realized with inorganic matter ammonia being the electrogenesis of fuel; 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; Circulation nitrator in being provided with in the anode chamber; The nitrated microbiological fuel cell of constructed double chamber type is simple in structure; Operating condition is gentle, and the anolyte reaction chamber device is the subregion aeration only, can provide to start the needed dissolved oxygen of ammoxidation reaction; Can prevent that again oxygen concentration is too high, causes electron loss; With strong oxidizer potassium permanganate is catholyte, and cathode potential is high, and battery performance is better, and energy utilization rate is higher.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of nitrated microbiological fuel cell is provided.
Nitrated microbiological fuel cell is made up of anode chamber, cathode chamber and PEM; The anode chamber also is connected through flange with the middle PEM that is provided with of cathode chamber; The anode chamber is provided with anode chamber's cube reactor and seal cover, connects through 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 in the electrogenesis matrix and hang the film anode, 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 through 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 a 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 the length and width height ratio 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 that described nitrifier is hung the film anode is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake; Surface attachment has the nitrifier biomembrane; Hanging film anode lower end is 1 ~ 2 cm apart from anode chamber's cube reactor bottom, and extension film 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 a graphite rod, and cathodic surface area is 4 ~ 10 m with the ratio of cathode chamber cube reactor volume
2: 1 m
3
The present invention's beneficial effect compared with prior art is: be fuel with the inorganic matter 1), utilize ammonia oxidation bacteria and nitrous acid oxidation bacterium to carry out denitrogenation of waste water and biological electrogenesis, can realize contaminated wastewater control and electrogenesis simultaneously.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) circulation nitrator in the anode chamber is provided with; The nitrated microbiological fuel cell of constructed double chamber type is simple in structure; Operating condition is gentle, and the anolyte reaction chamber device is the subregion aeration only, can provide to start the needed dissolved oxygen of ammoxidation reaction; Can prevent that again oxygen concentration is too high, causes electron loss.4) be catholyte with strong oxidizer potassium permanganate, 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, PEM 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, extension film 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
Like Fig. 1, shown in 2, nitrated microbiological fuel cell is made up of the I of anode chamber, cathode chamber II and PEM III; The I of anode chamber also is connected through flange 12 with the middle PEM III that is provided with of cathode chamber II; The I of anode chamber is provided with anode chamber's cube reactor 2 and seal cover 1, connects through 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 was opened by division board with reaction zone 4 in 5 minutes, was communicated with up and down and filled electrogenesis matrix 13; Place nitrifier in the electrogenesis matrix 13 and hang film anode 9, 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 through 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 a 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 the length and width height ratio 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, cube reactor 2 middle part, described anode chamber 3 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 that described nitrifier is hung film anode 9 is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake; Surface attachment has the nitrifier biomembrane; Hanging film anode 9 lower ends is 1 ~ 2 cm apart from cube reactor 2 bottoms, anode chamber, and extension film 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 reactant liquor is promoted by bubble simultaneously, and the division board top of overflowing gets into reaction zone; Nitrifier on the anode utilizes dissolved oxygen limited in the reactant liquor to start ammoxidation reaction and generates azanol; Azanol further is converted into nitrite and nitrate; The electronics that discharges passes to anode through respiratory chain; Then through positive wire, external circuit and cathode wire with electron transport to negative electrode; The proton that nitration reaction discharged simultaneously passes the proton film and arrives cathode chamber under the electric field force effect, electronics and proton are accomplished nitrated and electricity generation process thus in the reduction reaction of cathode surface participation potassium permanganate.
Claims (5)
1. nitrated microbiological fuel cell, it is characterized in that: nitrated microbiological fuel cell is made up of anode chamber (I), cathode chamber (II) and PEM (III); Anode chamber (I) also is connected through flange (12) with the middle PEM (III) that is provided with of cathode chamber (II); Anode chamber (I) is provided with anode chamber's cube reactor (2) and seal cover (1), connects through 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 in the electrogenesis matrix (13) and hang film anode (9), 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 through 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 is characterized in that: 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.
3. a kind of nitrated microbiological fuel cell according to claim 1 is characterized in that: described catholyte (15) is a 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
4. a kind of nitrated microbiological fuel cell according to claim 1 is characterized in that: described anode chamber's cube reactor (2) is the same with cathode chamber cube reactor (14) size dimension, and the length and width height ratio 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.
5. a kind of nitrated microbiological fuel cell according to claim 1; It is characterized in that: the electric conducting material that described nitrifier is hung film anode (9) is carbon paper, carbon cloth, carbon felt, graphite felt or graphite cake; Surface attachment has the nitrifier biomembrane; Hanging film anode (9) lower end is 1 ~ 2 cm apart from anode chamber's cube reactor (2) bottom, and the ratio of hanging film 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 a 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
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290040.5A CN102800883B (en) | 2012-08-15 | 2012-08-15 | Nitrification microbial fuel cell |
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|---|---|---|---|
| CN201210290040.5A CN102800883B (en) | 2012-08-15 | 2012-08-15 | Nitrification microbial fuel cell |
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| CN102800883A true CN102800883A (en) | 2012-11-28 |
| CN102800883B CN102800883B (en) | 2014-09-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976559A (en) * | 2012-12-10 | 2013-03-20 | 重庆大学 | Anaerobic ammonia oxidation microbe reverse electroosmosis sewage treatment and power generation method and device |
| CN103022541A (en) * | 2013-01-10 | 2013-04-03 | 浙江大学 | Dual-chamber iso-intensity aeration nitrified microbial fuel cell |
| CN103094598A (en) * | 2013-01-25 | 2013-05-08 | 浙江大学 | Integrated nitrification-denitrification microbial fuel cell |
| CN103268950A (en) * | 2013-05-03 | 2013-08-28 | 浙江大学 | Rotating disc type film-coated mediated ammoxidation microbiological fuel cell |
| CN105967455A (en) * | 2016-06-30 | 2016-09-28 | 华东交通大学 | Refuse leachate self-powered denitration apparatus and method |
| CN107195940A (en) * | 2017-06-20 | 2017-09-22 | 江南大学 | The method of one kind reinforcing non-buffered microbiological fuel cell (BLMFC) electricity generation performance |
| CN107954523A (en) * | 2017-11-24 | 2018-04-24 | 广东工业大学 | A kind of method of bioelectrochemical system and wastewater treatment |
| CN108565483A (en) * | 2018-05-30 | 2018-09-21 | 西安建筑科技大学 | A kind of synchronous denitrification dephosphorizing microbiological fuel cell and denitrification and dephosphorization method based on Zero-valent Iron |
| CN109841842A (en) * | 2017-11-25 | 2019-06-04 | 西北农林科技大学 | The solid biologic film MFC promotor preparation facilities and preparation method that charcoal mediates |
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| CN101794896A (en) * | 2010-03-23 | 2010-08-04 | 浙江大学 | Anaerobic ammonia oxidation microbiological fuel cell |
| CN102034998A (en) * | 2010-11-22 | 2011-04-27 | 四川大学 | Enhancing method of oxygen mass transfer efficiency of microbial fuel cell cathode and corresponding cell |
| CN102324544A (en) * | 2011-09-05 | 2012-01-18 | 浙江工商大学 | Microbiological fuel cell for removing nitrogen and phosphorus |
| CN202888322U (en) * | 2012-08-15 | 2013-04-17 | 浙江大学 | Nitrification microbial fuel cell |
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2012
- 2012-08-15 CN CN201210290040.5A patent/CN102800883B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101794896A (en) * | 2010-03-23 | 2010-08-04 | 浙江大学 | Anaerobic ammonia oxidation microbiological fuel cell |
| CN102034998A (en) * | 2010-11-22 | 2011-04-27 | 四川大学 | Enhancing method of oxygen mass transfer efficiency of microbial fuel cell cathode and corresponding cell |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976559A (en) * | 2012-12-10 | 2013-03-20 | 重庆大学 | Anaerobic ammonia oxidation microbe reverse electroosmosis sewage treatment and power generation method and device |
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| CN103022541A (en) * | 2013-01-10 | 2013-04-03 | 浙江大学 | Dual-chamber iso-intensity aeration nitrified microbial fuel cell |
| CN103094598A (en) * | 2013-01-25 | 2013-05-08 | 浙江大学 | Integrated nitrification-denitrification microbial fuel cell |
| CN103268950A (en) * | 2013-05-03 | 2013-08-28 | 浙江大学 | Rotating disc type film-coated mediated ammoxidation microbiological fuel cell |
| CN105967455A (en) * | 2016-06-30 | 2016-09-28 | 华东交通大学 | Refuse leachate self-powered denitration apparatus and method |
| CN107195940A (en) * | 2017-06-20 | 2017-09-22 | 江南大学 | The method of one kind reinforcing non-buffered microbiological fuel cell (BLMFC) electricity generation performance |
| CN107954523A (en) * | 2017-11-24 | 2018-04-24 | 广东工业大学 | A kind of method of bioelectrochemical system and wastewater treatment |
| CN109841842A (en) * | 2017-11-25 | 2019-06-04 | 西北农林科技大学 | The solid biologic film MFC promotor preparation facilities and preparation method that charcoal mediates |
| CN109841842B (en) * | 2017-11-25 | 2023-03-17 | 西北农林科技大学 | Preparation device and preparation method of charcoal-mediated solid biofilm MFC (microbial fuel cell) accelerator |
| CN108565483A (en) * | 2018-05-30 | 2018-09-21 | 西安建筑科技大学 | A kind of synchronous denitrification dephosphorizing microbiological fuel cell and denitrification and dephosphorization method based on Zero-valent Iron |
| CN108565483B (en) * | 2018-05-30 | 2024-05-28 | 西安建筑科技大学 | Synchronous nitrogen and phosphorus removal microbial fuel cell based on zero-valent iron and nitrogen and phosphorus removal method |
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| CN102800883B (en) | 2014-09-10 |
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