CN105470546B - The method that microbiological fuel cell recycles sulphur in waste water - Google Patents
The method that microbiological fuel cell recycles sulphur in waste water Download PDFInfo
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- CN105470546B CN105470546B CN201610002972.3A CN201610002972A CN105470546B CN 105470546 B CN105470546 B CN 105470546B CN 201610002972 A CN201610002972 A CN 201610002972A CN 105470546 B CN105470546 B CN 105470546B
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- sulphur
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- 239000000446 fuel Substances 0.000 title claims abstract description 72
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 230000002906 microbiologic effect Effects 0.000 title claims abstract description 58
- 239000005864 Sulphur Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000003647 oxidation Effects 0.000 claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000010865 sewage Substances 0.000 claims abstract description 21
- 244000005700 microbiome Species 0.000 claims abstract description 20
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 13
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 12
- 239000011593 sulfur Substances 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 11
- 230000003197 catalytic effect Effects 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 230000000813 microbial effect Effects 0.000 claims description 13
- 230000001546 nitrifying effect Effects 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 150000003464 sulfur compounds Chemical class 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 7
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000356 contaminant Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 239000010405 anode material Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 13
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 239000010802 sludge Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000010186 staining Methods 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 239000007772 electrode material Substances 0.000 description 5
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 238000007654 immersion Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002572 peristaltic effect Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000029087 digestion Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M8/008—Disposal or recycling of fuel cells
-
- 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
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention is to provide the methods using sulphur in microbiological fuel cell recycling waste water, specifically: building double chamber type desulfurization microbiological fuel cell；Nitrogenous sulphur sewage pump is entered to the anode chamber of microbiological fuel cell, sulphur simple substance is mainly oxidation of the sulfide by spontaneous electrochemical action and is covered in anode surface, to realize sulfur recovery, and electronics caused by sulfide oxidation is transmitted to cathode by external circuit to realize that electric energy recycles；After anode chamber's water outlet enters cathode chamber, the electronics that oxidation external circuit passes over using oxygen as electron acceptor under the catalytic action of microorganism, while by the ammonium oxidation in waste water at nitrate nitrogen, the denitrification denitrogenation after being is prepared.The present invention has recycled sulphur and energy by microbiological fuel cell from sulfur-containing waste water.
Description
Technical field
The present invention relates to saprobia sulfur removal technology fields more particularly to a kind of utilization microbiological fuel cell to recycle waste water
The method of middle sulphur.
Background technique
It need to be effectively removed in sulfur-bearing organic wastewater anaerobic digestion solution containing a large amount of sulfide, biological sulfur removal technology is solution at present
The certainly most economical effective method of sewage sulphur pollution, but traditional biological sulfur removal technology cannot recycle amounts of sulphur contaminants when handling sewage
The energy contained.
Electric energy can be recycled in the microbiological fuel cell developed in recent years while removing pollutant, for example, see document 1
(Rabaey K,Van de Sompel K,Maignien L,et al.Microbial fuel cells for sulfide
removal.Environmental science&technology,2006,40(17):5218-5224.).The technology can gone
Except electric energy is recycled while amounts of sulphur contaminants in sewage, effectively solution traditional biological sulfur removal technology cannot recycle amounts of sulphur contaminants and be contained
The shortcomings that energy is the Novel sewage processing technique administered sour water and recycle electric energy.But it is gone using microbiological fuel cell
There may be sulfate during except sulfide in sewage, and there are potential secondary pollutions.In addition lead in sulphide-containing waste water
Often contain a large amount of ammonia nitrogen, also needs to prepare for subsequent bio denitrogenation processing while handling sulphide staining.
The development trend of domestic and international waste water sulfur removal technology is: using biotechnology as mainstream, returning as far as possible when removing sulphur pollution
Sulphur ressource and energy are received, while considering other pollutants (such as ammonia nitrogen) in synchronous removal waste water or is other in removal waste water
Pollutant is prepared.But have not yet to see the report for recycling sulphur using microbiological fuel cell and completing nitrogen ammonia nitrifying process.
Summary of the invention
The technical problems to be solved by the present invention are: first is that traditional biological desulfurizing technology cannot recycle contained by amounts of sulphur contaminants
Some energy；Second is that sulfur-containing waste water (such as anaerobic digestion solution) also needs to remove containing a large amount of ammonia nitrogen, therefore while sulphur removal also
It need to prepare for subsequent denitrification denitrogenation and (complete the nitrification of ammonia nitrogen).For both of these problems, a kind of microorganism combustion is provided
Material battery removal sulphide staining is to recycle sulphur, and by the method for the Ammonia Nitrification in waste water.This method is using sulfide as sun
Pole electron donor, using dissolved oxygen as cathode electronics receptor.Sulfur recovery is realized using anode of microbial fuel cell, and in cathode
The nitrifying process of ammonia nitrogen is completed, is prepared for subsequent denitrification denitrogenation；Electric energy is recycled simultaneously.
The present invention solves its technical problem, and the following technical solution is employed:
The method of sulphur, is the anode in microbiological fuel cell in microbiological fuel cell recycling waste water provided by the invention
The sulphur in waste water is recycled, completes the nitrifying process of ammonia nitrogen in waste water in cathode, this method is:
1) double chamber type microbiological fuel cell is constructed, sewage desufurization system is formed；
2) sewage pump of sulfur compound and ammonia nitrogen is entered to the anode chamber of microbiological fuel cell, sulfide is main in anode chamber
Sulphur simple substance is oxidized to by spontaneous electrochemical action and is attached to anode surface, to remove sulphur pollution, is generated in oxidation process
Electronics pass to cathode by external circuit；
3) anode chamber's water outlet of microbiological fuel cell enters cathode chamber, aeration aerating is carried out in cathode chamber, in micro- life
Aoxidize the electronics that passes over of external circuit under the catalytic action of object using oxygen as electron acceptor, while by the ammonium oxidation in sewage
At nitrate nitrogen；
4) supernatant being discharged through microbial fuel cell cathode chamber has as effectively removed sulphur pollution and by nitrifying
The processing water of journey is prepared for subsequent denitrification denitrogenation；
5) electric current is generated in external circuit when electronics is transmitted to cathode by external circuit by anode, to realize returning for electric energy
It receives；
6) anode material is periodically taken out, is impregnated with lye or organic solvent to recycle sulphur.
The present invention constructs double chamber type microbiological fuel cell using following methods: the microbiological fuel cell by anode chamber and
Cathode chamber is constituted, and anode chamber and cathode chamber are semi-cylindrical structure, is divided between anode chamber and cathode chamber with proton exchange membrane
Every filled graphite fiber filament is as electrode in anode chamber and cathode chamber.
In the step 2) of the above method, in anode chamber bottom, setting magnetic stirring apparatus carries out being stirred for anolyte.
In the step 3) of the above method, aeration aerating is carried out in cathode chamber setting aeration head.
In the step 3) of the above method, after anode chamber's water outlet enters cathode chamber, pass through microbial action under aerobic conditions
Complete the nitrifying process of ammonia nitrogen.
In the above method, the lye uses the NaOH solution of 1mol/L.
In the above method, the organic solvent uses carbon disulfide solution.
In the above method, used external circuit is made of copper conductor and resistance box, anode, the electricity of microbiological fuel cell
Resistance case and cathode are sequentially connected by copper conductor, and the resistance value in resistance box is adjustable.
The resistance box can be replaced by electrical equipment.
Spontaneous electrochemical action of the present invention refers to that sulfide is spontaneously oxidized in anode chamber, and discharges electricity to anode
The process of son.
Above-mentioned steps 2) in, used external circuit is made of copper conductor and resistance box or electrical equipment, Microbial fuel
Anode, resistance box and the cathode of battery are sequentially connected by copper conductor.
The running temperature of microbiological fuel cell of the present invention is 25 DEG C.
Compared with prior art, the present invention having following major advantage:
One microbiological fuel cell can realize that electric energy recycles while removing Pollutants in Wastewater.
Secondly microbiological fuel cell uses biological-cathode, adding for chemical cathode high cost catalyst is avoided.
Thirdly the anode chamber of microbiological fuel cell can remove sulphide removal and recycle the sulphur simple substance of generation, cathode exposes
Gas is oxygenated while providing electron acceptor for cathode and Ammonia Nitrification, and it is that subsequent denitrification is prepared that cathode, which completes nitrifying process,.
Detailed description of the invention
Fig. 1 is double chamber type microbiological fuel cell schematic diagram.
In figure: 1. anode chambers；2. cathode chamber；3. anode；4. cathode；5. proton exchange membrane；6. resistance box；7. stirrer；
8. copper conductor.
Specific embodiment
The present invention is to provide the methods using sulphur in microbiological fuel cell recycling waste water, specifically: nitrogenous sulphur is dirty
The anode chamber that the sewage pump of dye object enters microbiological fuel cell mainly passes through spontaneous electrification using sulfide as anode current donor
Effect is oxidation of the sulfide into sulphur simple substance in anode surface, to realize sulfur recovery, and will generate electronics and be passed by external circuit
Cathode is delivered to realize the recycling of electric energy；Anode water outlet is completed to nitrify while using dissolved oxygen as cathode electronics receptor
Journey, the denitrification denitrogenation after being are prepared.
Below with reference to embodiment, the invention will be further described, but does not limit the contents of the present invention.
Method provided by the invention is a kind of in the anode chamber of microbiological fuel cell recycling sulphur and cathode chamber completion ammonia nitrogen
The method of nitrifying process, the method steps are as follows:
(1) double chamber type microbiological fuel cell is constructed, sewage desufurization system shown in FIG. 1 is formed.
(2) sewage pump of sulfur compound and ammonia nitrogen is entered to the anode chamber 1 of microbiological fuel cell, sulfide is in anode chamber 1
It is inside oxidized and generates sulphur simple substance and be attached to 3 surface of anode, so that sulphide staining is removed, the electronics warp generated in oxidation process
It crosses external circuit and passes to cathode 4,1 bottom of anode chamber is equipped with stirrer 7 and is stirred mixing to anolyte.
(3) water outlet of anode chamber 1 of microbiological fuel cell enters cathode chamber 2, by aeration aerating with oxygen in cathode chamber 2
The electronics that outside the pale of civilization circuit transmitting comes, while by the ammonium oxidation in waste water at nitrate nitrogen.
(4) supernatant being discharged through microbial fuel cell cathode chamber 2 has as effectively removed sulphur pollution and has completed nitrogen nitrogen
The processing water of nitrifying process is prepared for subsequent denitrification denitrogenation.
(5) electric current is generated in external circuit when electronics is transmitted to cathode 4 by external circuit by anode 3, to realize electric energy
Recycling.
(6) anode material is periodically taken out, is impregnated with lye or organic solvent to recycle sulphur.
The present invention constructs double chamber type microbiological fuel cell using following methods: the microbiological fuel cell is by anode chamber 1
Constituted with cathode chamber 2, anode chamber and cathode chamber are semi-cylindrical structure, between anode chamber and cathode chamber with proton exchange membrane 5 into
Row separates, and filled graphite fiber filament is as electrode in anode chamber 1 and cathode chamber 2.
In above-mentioned steps (2), used external circuit is made of copper conductor 8 and resistance box 6 (or electrical equipment), microorganism
Anode 3, resistance box 6 and the cathode 4 of fuel cell are sequentially connected by copper conductor 8.
The running temperature of microorganism fuel cell is 25 DEG C.
The present invention is further explained in the light of specific embodiments, but does not limit the contents of the present invention.
Embodiment 1
It carrying out for double chamber type microbiological fuel cell used by this test, each room dischargeable capacity of anode and cathode is 200ml,
Device is using graphite fibre silk as electrode material.First by cathode graphite fibre silk in aerobic sludge before microbiological fuel cell operation
Middle immersion after a period of time, can breed in anode and cathode to adsorb microorganism and be enriched with corresponding microorganism, anode does not connect
Kind sludge.Double chamber type microbiological fuel cell intermittent duty at 25 DEG C, the cycle of operation are 12 hours, 200ml of intaking every time,
The resistance of external circuit is set as 100 Ω.Carrying out practically is as follows:
1) sewage of sulfur compound (64mgS/L) and ammonia nitrogen (27.2mgN/L) is injected into Microbial fuel by peristaltic pump
The anode chamber of battery.
2) sulfide is mainly oxidized by spontaneous electrochemical action in anode chamber generates sulphur simple substance and is attached to anode
Surface, to remove sulphide staining, the electronics generated in oxidation process passes to cathode by external circuit.
3) anode chamber's water outlet is pumped into cathode chamber.
4) under the catalytic action of cathode electrode surface microorganism using dioxygen oxidation external circuit transmit come electronics and general
Ammonium oxidation in waste water is prepared at nitrate nitrogen for subsequent denitrification denitrogenation.
5) cathode chamber water outlet has as removed sulphur pollution and has completed the processing water of nitrification, the removal of sulfide and ammonia nitrogen
Load is respectively 0.118kgS/ (m3Anode chamber d) and 0.054kgN/ (m3The production rate of cathode chamber d), nitrate nitrogen is
92.3%.Ammonia Nitrification is more thorough, and elimination capacity depends on influent ammonium concentration.
6) continuously-running duty can also be used in actual operating.
Embodiment 2
It carrying out for double chamber type microbiological fuel cell used by this test, each room dischargeable capacity of anode and cathode is 200ml,
Device is using graphite fibre silk as electrode material.First by cathode graphite fibre silk in aerobic sludge before microbiological fuel cell operation
Middle immersion after a period of time, can breed in anode and cathode to adsorb microorganism and be enriched with corresponding microorganism, anode does not connect
Kind sludge.Double chamber type microbiological fuel cell intermittent duty at 25 DEG C, the cycle of operation are 12 hours, 200ml of intaking every time,
The resistance of external circuit is set as 100 Ω.Carrying out practically is as follows:
1) sewage of sulfur compound (128mgS/L) and ammonia nitrogen (27.2mgN/L) is injected into Microbial fuel by peristaltic pump
The anode chamber of battery.
2) sulfide is mainly oxidized by spontaneous electrochemical action in anode chamber generates sulphur simple substance and is attached to anode
Surface, to remove sulphide staining, the electronics generated in oxidation process passes to cathode by external circuit.
3) anode chamber's water outlet is pumped into cathode chamber.
4) electricity that organisms use oxygen oxidation external circuit transmitting comes under the catalytic action of cathode electrode surface microorganism
Son and by the ammonium oxidation in waste water at nitrate nitrogen, prepare for subsequent denitrification denitrogenation.
5) cathode chamber water outlet has as removed sulphur pollution and has completed the processing water of nitrification, the removal of sulfide and ammonia nitrogen
Load is respectively 0.246kgS/ (m3Anode chamber d) and 0.054kgN/ (m3The production rate of cathode chamber d), nitrate nitrogen is
92.3%.Ammonia Nitrification is more thorough, and elimination capacity depends on influent ammonium concentration.
6) continuously-running duty can also be used in actual operating.
Embodiment 3
It carrying out for double chamber type microbiological fuel cell used by this test, each room dischargeable capacity of anode and cathode is 200ml,
Device is using graphite fibre silk as electrode material.First by cathode graphite fibre silk in aerobic sludge before microbiological fuel cell operation
Middle immersion after a period of time, can breed in anode and cathode to adsorb microorganism and be enriched with corresponding microorganism, anode does not connect
Kind sludge.Double chamber type microbiological fuel cell intermittent duty at 25 DEG C, the cycle of operation are 12 hours, 200ml of intaking every time,
The resistance of external circuit is set as 100 Ω.Carrying out practically is as follows:
1) sewage of sulfur compound (192mgS/L) and ammonia nitrogen (27.2mgN/L) is injected into Microbial fuel by peristaltic pump
The anode chamber of battery.
2) sulfide is mainly oxidized by spontaneous electrochemical action in anode chamber generates sulphur simple substance and is attached to anode
Surface, to remove sulphide staining, the electronics generated in oxidation process passes to cathode by external circuit.
3) anode chamber's water outlet is pumped into cathode chamber.
4) electricity that organisms use oxygen oxidation external circuit transmitting comes under the catalytic action of cathode electrode surface microorganism
Son and by the ammonium oxidation in waste water at nitrate nitrogen, prepare for subsequent denitrification denitrogenation.
5) cathode chamber water outlet has as removed sulphur pollution and has completed the processing water of nitrification, the removal of sulfide and ammonia nitrogen
Load is respectively 0.374kgS/ (m3Anode chamber d) and 0.054kgN/ (m3The production rate of cathode chamber d), nitrate nitrogen is
92.3%.Ammonia Nitrification is more thorough, and elimination capacity depends on influent ammonium concentration.
6) continuously-running duty can also be used in actual operating.
Embodiment 4
It carrying out for double chamber type microbiological fuel cell used by this test, each room dischargeable capacity of anode and cathode is 200ml,
Device is using graphite fibre silk as electrode material.First by cathode graphite fibre silk in aerobic sludge before microbiological fuel cell operation
Middle immersion after a period of time, can breed in anode and cathode to adsorb microorganism and be enriched with corresponding microorganism, anode does not connect
Kind sludge.Double chamber type microbiological fuel cell intermittent duty at 25 DEG C, the cycle of operation are 12 hours, 200ml of intaking every time,
The resistance of external circuit is set as 100 Ω.Carrying out practically is as follows:
1) sewage of sulfur compound (256mgS/L) and ammonia nitrogen (27.2mgN/L) is injected into Microbial fuel by peristaltic pump
The anode chamber of battery.
2) sulfide is mainly oxidized by spontaneous electrochemical action in anode chamber generates sulphur simple substance and is attached to anode
Surface, to remove sulphide staining, the electronics generated in oxidation process passes to cathode by external circuit.
3) anode chamber's water outlet is pumped into cathode chamber.
4) electricity that organisms use oxygen oxidation external circuit transmitting comes under the catalytic action of cathode electrode surface microorganism
Son and by the ammonium oxidation in waste water at nitrate nitrogen, prepare for subsequent denitrification denitrogenation.
5) cathode chamber water outlet has as removed sulphur pollution and has completed the processing water of nitrification, the removal of sulfide and ammonia nitrogen
Load is respectively 0.501kgS/ (m3Anode chamber d) and 0.054kgN/ (m3The production rate of cathode chamber d), nitrate nitrogen is
92.3%.Ammonia Nitrification is more thorough, and elimination capacity depends on influent ammonium concentration.
6) continuously-running duty can also be used in actual operating.
Embodiment 5
It carrying out for double chamber type microbiological fuel cell used by this test, each room dischargeable capacity of anode and cathode is 200ml,
Device is using graphite fibre silk as electrode material.First by cathode graphite fibre silk in aerobic sludge before microbiological fuel cell operation
Middle immersion after a period of time, can breed in anode and cathode to adsorb microorganism and be enriched with corresponding microorganism, anode does not connect
Kind sludge.Double chamber type microbiological fuel cell intermittent duty at 25 DEG C, the cycle of operation are 12 hours, 200ml of intaking every time,
The resistance of external circuit is set as 100 Ω.Carrying out practically is as follows:
1) sewage of sulfur compound (320mgS/L) and ammonia nitrogen (27.2mgN/L) is injected into Microbial fuel by peristaltic pump
The anode chamber of battery.
2) sulfide is mainly oxidized by spontaneous electrochemical action in anode chamber generates sulphur simple substance and is attached to anode
Surface, to remove sulphide staining, the electronics generated in oxidation process passes to cathode by external circuit.
3) anode chamber's water outlet is pumped into cathode chamber.
4) electricity that organisms use oxygen oxidation external circuit transmitting comes under the catalytic action of cathode electrode surface microorganism
Son and by the ammonium oxidation in waste water at nitrate nitrogen, prepare for subsequent denitrification denitrogenation.
5) cathode chamber water outlet has as removed sulphur pollution and has completed the processing water of nitrification, the removal of sulfide and ammonia nitrogen
Load is respectively 0.628kgS/ (m3Anode chamber d) and 0.054kgN/ (m3The production rate of cathode chamber d), nitrate nitrogen is
92.3%.Ammonia Nitrification is more thorough, and elimination capacity depends on influent ammonium concentration.
6) continuously-running duty can also be used in actual operating.
Claims (5)
1. a kind of method of sulphur in microbiological fuel cell recycling waste water, it is characterized in that the anode in microbiological fuel cell recycles
Sulphur in waste water completes the nitrifying process of ammonia nitrogen in waste water in cathode, specifically: the sewage pump of nitrogenous amounts of sulphur contaminants is raw in a subtle way
The anode chamber of object fuel cell, using sulfide as anode current donor, mainly by spontaneous electrochemical action by sulfide oxidation
At sulphur simple substance in anode surface, to realize sulfur recovery, and electronics will be generated, cathode is transmitted to realize electric energy by external circuit
Recycling；Anode is discharged while using dissolved oxygen as cathode electronics receptor and completes nitrifying process, the denitrification after being is de-
Nitrogen is prepared,
This method uses following steps:
1) double chamber type microbiological fuel cell is constructed, sewage desufurization system is formed；
2) sewage pump of sulfur compound and ammonia nitrogen is entered to the anode chamber (1) of microbiological fuel cell, sulfide is main in anode chamber (1)
It to be oxidized to sulphur simple substance by spontaneous electrochemical action and is attached to anode (3) surface, so that sulphur pollution is removed, in oxidation process
The electronics of generation passes to cathode (4) by external circuit；In anode chamber (1) bottom, setting magnetic stirring apparatus carries out stirring for anolyte
Mix mixing；
3) anode chamber (1) water outlet of microbiological fuel cell enters cathode chamber (2), and aeration aerating is carried out in cathode chamber (2),
Aoxidize the electronics that passes over of external circuit under the catalytic action of microorganism using oxygen as electron acceptor, while by the ammonia nitrogen in sewage
It is oxidized to nitrate nitrogen；After anode chamber (1) water outlet enters cathode chamber (2), ammonia nitrogen is completed by microbial action under aerobic conditions
Nitrifying process；Aeration aerating is carried out in cathode chamber (2) setting aeration head；
4) supernatant being discharged through microbial fuel cell cathode chamber (2) has as effectively removed sulphur pollution and by nitrifying process
Processing water, prepare for subsequent denitrification denitrogenation；
5) electric current is generated in external circuit when electronics is transmitted to cathode (4) by external circuit by anode (3), to realize returning for electric energy
It receives；
6) anode material is periodically taken out, is impregnated with lye or organic solvent to recycle sulphur.
2. the method for sulphur in microbiological fuel cell recycling waste water according to claim 1, it is characterised in that using following
Method constructs double chamber type microbiological fuel cell: the microbiological fuel cell is made of anode chamber (1) and cathode chamber (2), anode
Room and cathode chamber are semi-cylindrical structure, are separated between anode chamber and cathode chamber with proton exchange membrane (5), anode chamber (1)
With the interior filled graphite fiber filament of cathode chamber (2) as electrode.
3. the method for sulphur in microbiological fuel cell recycling waste water according to claim 1, it is characterised in that the lye
Using the NaOH solution of 1mol/L.
4. the method for sulphur in microbiological fuel cell recycling waste water according to claim 1, it is characterised in that described organic
Solvent uses carbon disulfide solution.
5. the method for sulphur in microbiological fuel cell recycling waste water according to claim 1, it is characterised in that used
External circuit is made of copper conductor (8) and resistance box (6), and anode (3), resistance box (6) and the cathode (4) of microbiological fuel cell are logical
Copper conductor (8) is crossed to be sequentially connected.
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| CN107808970A (en) * | 2017-10-23 | 2018-03-16 | 郭超 | A kind of microbiological fuel cell |
| CN108793425A (en) * | 2018-06-15 | 2018-11-13 | 武汉理工大学 | Nitrify the method that sulphur removal MFC removes ammonia desulfurization with denitrification sulphur removal MFC coupled systems |
| SG11202013023XA (en) | 2018-06-28 | 2021-01-28 | Aquacycl Llc | Scalable continuous flow microbial fuel cells |
| SG11202109330VA (en) | 2019-02-27 | 2021-09-29 | Aquacycl Llc | Scalable floating micro-aeration unit, devices and methods |
| CN110790361B (en) * | 2019-11-06 | 2022-03-29 | 中国科学技术大学苏州研究院 | Bioelectrochemical sulfur recovery system and method for treating sulfide-containing waste gas/wastewater |
| US11604482B2 (en) | 2020-03-16 | 2023-03-14 | Aquacycl, Inc. | Fluid flow control for water treatment systems |
| CN113003702B (en) * | 2021-03-15 | 2023-01-20 | 南京理工大学 | Method for strengthening anaerobic reduction of nitrobenzene by using electrochemical regulation and control of sulfur circulation |
| CN115159662A (en) * | 2022-02-22 | 2022-10-11 | 武汉理工大学 | Microbial fuel cell with cathode without power oxygenation and using method thereof |
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| CN102324544A (en) * | 2011-09-05 | 2012-01-18 | 浙江工商大学 | Microbiological fuel cell for removing nitrogen and phosphorus |
| CN102468495A (en) * | 2010-11-17 | 2012-05-23 | 中国科学院城市环境研究所 | Microbiological fuel cell for treating sulfur-containing wastewater |
| CN103117405A (en) * | 2013-01-25 | 2013-05-22 | 浙江大学 | Multifunctional denitrification microbial fuel battery |
| CN105032152A (en) * | 2015-07-24 | 2015-11-11 | 大连理工大学 | Chemical absorption and microbial fuel cell combined synchronous flue gas desulfurization and denitration technology |
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| CN102324544A (en) * | 2011-09-05 | 2012-01-18 | 浙江工商大学 | Microbiological fuel cell for removing nitrogen and phosphorus |
| CN103117405A (en) * | 2013-01-25 | 2013-05-22 | 浙江大学 | Multifunctional denitrification microbial fuel battery |
| CN105032152A (en) * | 2015-07-24 | 2015-11-11 | 大连理工大学 | Chemical absorption and microbial fuel cell combined synchronous flue gas desulfurization and denitration technology |
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