CN105600930B - Denitrogenation dephosphorizing produces electricity device - Google Patents
Denitrogenation dephosphorizing produces electricity device Download PDFInfo
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- CN105600930B CN105600930B CN201610133941.1A CN201610133941A CN105600930B CN 105600930 B CN105600930 B CN 105600930B CN 201610133941 A CN201610133941 A CN 201610133941A CN 105600930 B CN105600930 B CN 105600930B
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- aerobic tank
- anaerobic pond
- pond
- sewage
- fuel cell
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
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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
Abstract
A kind of denitrogenation dephosphorizing electricity production device, belongs to technical field of sewage.By traditional A2/ O techniques are coupled with microbiological fuel cell, belong to technical field of sewage.Including sequentially connected water tank, anaerobic pond, anoxic pond, aerobic tank and sedimentation basin, it is separated by proton exchange membrane between anaerobic pond and aerobic tank, wherein anode chamber of the anaerobic pond as microbiological fuel cell, cathode chamber of the aerobic tank as microbiological fuel cell, anode chamber and cathode chamber pass through carbon felt electrode and the external resistance box of copper conductor respectively, form closed circuit, pass through mixed-liquor return piping connection between anoxic pond and aerobic tank, it is connected by returned sludge pipeline between anaerobic pond and sedimentation basin, water outlet and mud discharging mouth are additionally provided on sedimentation basin, while treated sewage, it produces electricl energy, realize A2The coupling of/O and two kinds of technique of microbiological fuel cell.The present invention utilizes A2/ O process sanitary sewages reduce the concentration of COD, TP and TN in sewage, and stable voltage value is generated while purifying water body, has effectively handled the pollutant in sewage, and produce electric energy.
Description
Technical field
The invention belongs to technical field of sewage, device are produced electricity more particularly to a kind of denitrogenation dephosphorizing, in treated sewage
In the pollutants such as COD, nitrogen, phosphorus while the new process that produces electricl energy.
Background technology
Traditional waste water treatment process is mainly made of anaerobism, aerobic, anoxic reacter, A2/ O techniques are its Typical Representatives,
Simultaneously be also sewage treatment plant's synchronous denitrification dephosphorizing conventional process, sewage during flowing through three different function subregions,
Under the effect of different microorganisms flora, the organic matter in sewage, nitrogen, phosphorus is made to be removed, has that technological process is simple, is easy to transport
The advantages that row manages, hydraulic detention time is short, effluent quality is good and excess sludge phosphorus content is high.But people are in removal sewage
In can be degraded by microorganisms organic matter when, but have ignored the value of its potential chemical energy and recoverable, cause one
The fixed wasting of resources, or even need to expend a large amount of energy thus.Microbiological fuel cell is the catalytic action using microorganism
Chemical energy, is converted into the novel reactor of electric energy, just compensates for this loss by the organic matter in degradation sewage；But it is micro-
Biological fuel cell is to reducing the pollutants such as nitrogen, phosphorus in sewage without apparent removal effect, and A2/ O techniques have very much in this respect
Advantage.Related A2The research that/O techniques are coupled with microbiological fuel cell at home and abroad still belongs to blank field, coupling device at
After work(operation, stable electric energy is generated while treated sewage, and there is very high theory and application value.
Invention content
For the above technical problems, in order to overcome A2/ O techniques largely have caused by during treated sewage
The problem of machine energy waste and global renewable green energy resource crisis, and enhancing microbiological fuel cell in sewage nitrogen,
The removal effect of the pollutants such as phosphorus.The present invention provides a kind of denitrogenation dephosphorizing electricity production device, it is by traditional A2/ O techniques and micro- life
The new device of object fuel cell coupling, the device can not only reduce the concentration of COD, TN and TP in sewage to purify dirt
Water, and the catalytic action of microorganism can be utilized to produce electricl energy.
The purpose of the present invention is achieved through the following technical solutions：
A kind of denitrogenation dephosphorizing electricity production device, including sequentially connected water tank, anaerobic pond, anoxic pond, aerobic tank and sedimentation basin,
It is separated by proton exchange membrane between anaerobic pond and aerobic tank, wherein anode chamber of the anaerobic pond as microbiological fuel cell, it is aerobic
Cathode chamber of the pond as microbiological fuel cell, anode chamber and cathode chamber distinguish external resistance box, form closed circuit, anoxic pond
It by mixed-liquor return piping connection between aerobic tank, is connected, is sunk by returned sludge pipeline between anaerobic pond and sedimentation basin
It is additionally provided with water outlet and mud discharging mouth on the pond of shallow lake, while treated sewage, produces electricl energy, realizes A2/ O techniques and Microbial fuel
The coupling of two kinds of technique of battery.
Further, the anaerobic pond and aerobic tank are external by the electrode and conducting wire that are enriched with a large amount of microorganisms respectively
Circuit forms closed circuit.
Further, the anaerobic pond and anoxic pond are all provided with head cover, interior agitating device.
Further, aerator is set in the aerobic tank.
Further, the bottom of the anaerobic pond, anoxic pond, aerobic tank and sedimentation basin is funnel-form, and outlet at bottom is equal
Equipped with drain valve.
Beneficial effects of the present invention are：
The present invention utilizes tradition A2/ O techniques handle sanitary sewage with microbiological fuel cell coupling technique, can reduce
Stable voltage value is produced while COD, TP and TN concentration in sewage, has both effectively handled the pollutant in sewage,
Cleaning electric energy is produced again.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Fig. 2 is the fundamental diagram of the present invention.
Fig. 3 is the electricity production part schematic diagram of structure of the present invention.
In figure：1. water tank, 2. anaerobic ponds, 3. anoxic ponds, 4. proton exchange membrane, 5. mixed-liquor return pipelines, 6. aerobic tanks,
7. sedimentation basin, 8. water outlets, 9. mud discharging mouths, 10. sludge reflux pipelines, 11. resistance boxes, 12. pumps, 13. copper conductors, 14. general-purposes
Table, 15. carbon felt electrodes, 16. blenders, 17. aeration heads.
Specific implementation mode
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment：As shown in Figure 1, the present invention includes sequentially connected water tank inlet 1, anaerobic pond 2, anoxic pond 3, aerobic tank
6 and sedimentation basin 7, it is separated by proton exchange membrane 4 between anaerobic pond 2 and aerobic tank 6, wherein anaerobic pond 2 is as Microbial fuel electricity
The anode chamber in pond, cathode chamber of the aerobic tank 6 as microbiological fuel cell, anode chamber and cathode chamber respectively by carbon felt electrode with
And the external resistance box 11 of copper conductor, closed circuit is formed, is connected by mixed-liquor return pipeline 5 between anoxic pond 3 and aerobic tank 6
It connects, is connected by sludge reflux pipeline 10 between anaerobic pond 2 and sedimentation basin 7, water outlet 8 and mud discharging mouth are additionally provided on sedimentation basin 7
9, it while treated sewage, produces electricl energy, realizes A2The coupling of/O techniques and two kinds of technique of microbiological fuel cell.
It is respectively connected with pump on the inlet pipeline of the water tank 1, mixed-liquor return pipeline 5 and sludge reflux pipeline 10；Anaerobism
Pond 2 and anoxic pond 3 are all provided with head cover, and inside is equipped with blender stirring to make muddy water be uniformly mixed, aeration dress is set in aerobic tank 6
It sets；The anaerobic pond 2, anoxic pond 3, aerobic tank 6 and sedimentation basin 7 bottom be funnel-form, outlet at bottom is equipped with drain valve.
The present invention utilizes A during treated sewage2/ O techniques reduce the concentration of COD, TN and TP in sewage, purification
Sewage, using anaerobic pond as the anode chamber of microbiological fuel cell, cathode chamber of the aerobic tank as microbiological fuel cell is intermediate
It is separated by proton exchange membrane, anode chamber and cathode chamber are respectively by being enriched with outside the carbon felt electrode and copper conductor of a large amount of microorganisms
Connecting resistance case forms closed circuit, with anaerobism, anoxic, the aerobic traditional A being combined2Based on/O techniques, in treated sewage
Meanwhile certain electric energy is generated, realize A2The coupling of/O and two kinds of technique of microbiological fuel cell.The present invention is dirty during operation
The index of COD, ammonia nitrogen and total phosphorus are respectively 300mg/L, 40mg/L and 10mg/L or so in water, control anaerobic pond, anoxic pond and
The dissolved oxygen concentration of aerobic tank is respectively 0.2mg/L, 0.5mg/L and 1.0-2.0mg/L, and the water temperature of anoxic pond is controlled 15~25
DEG C, at 30~35 DEG C, sludge concentration (MLSS) is controlled in 5000mg/L or so for the water temperature control of the aerobic tank as cathode chamber.It is raw
Sewage living is firstly transferred to anaerobic pond (anode chamber) and is mixed with returned sludge, and part is easy under the action of amphimicrobian zymogenous bacteria
Biodegradable larger molecular organics are converted into the volatile fatty acid (VFA) of small molecule, and polyP bacteria, which absorbs these small molecules, to be had
Machine object synthesizes PHB and stores in the cell, while cell cohesion phosphorus is hydrolyzed into orthophosphates, is discharged into water, the energy of release
Amount is survived for obligate aerobic polyP bacteria under the oppressive environment of anaerobism；Meanwhile organic matter is acted in electricity-producing microorganism
Lower decomposition simultaneously releases electronics and proton, and electronics is transmitted to cathode by external circuit and forms electric current, and proton passes through proton exchange
Film is transmitted to cathode.Subsequent sewage enters anoxic pond, and denitrifying bacterium utilizes the nitre in organic matter and backflow mixed liquor in sewage
Hydrochlorate carries out denitrification, and the nitrogen of generation, can carbon elimination denitrogenation simultaneously in a gaseous form outside discharge system.When sewage enters aerobic tank
When (cathode chamber), under the action of nitrifier, by the mineralized nitrogen in sewage be nitrate nitrogen, through mixed-liquor return to anoxic pond into
Row denitrification denitrogenation；Organic concentration is very low at this time, and polyP bacteria is mainly that the PHB stored in decomposer supplies to obtain energy
Own growth is bred, while excess absorbs the dissolved phosphorus in water, is stored in the form of Quadrafos in vivo, by precipitating,
Phosphorous high sludge is separated from the water out, achievees the effect that dephosphorization；The electronics that anode generates is transmitted to the moon by external circuit
Pole forms electric current, and proton is transmitted to cathode, oxidant (O by proton exchange membrane2) obtain electronics in cathode and be reduced and matter
Son is combined into water.Anode and cathode is connected by copper conductor, forms external circuit, and then form potential difference.It needs to connect during startup operation
The concentration variation of COD, TN, TP in continuous detection reaction process and electricity production situation.
In fig. 2, device global shape is rectangle, and the bottom of each reactor is funnel-form in device, is equipped with drain valve.
Device is in starting operational process, and water inlet, mixed-liquor return and the sludge reflux of experiment are all made of pump conveying, remaining flow is pressed
Gravity stream operates, and passes through anaerobic pond (anode chamber), anoxic pond, aerobic tank (cathode chamber) and sedimentation basin successively, is carried out to sewage net
Change is handled.
As shown in figure 3, for the electricity production part schematic diagram of structure of utility model device, anode chamber (anaerobic pond) and cathode chamber
(aerobic tank) is spatially adjacent, and centre is separated by proton exchange membrane, and cathode and anode electrode used therein material is to be enriched with a large amount of micro- lifes
The carbon felt of object, is connected by copper conductor, external resistance box, and resistance box two terminates the measurement that voltmeter carries out voltage value.
Claims (4)
1. a kind of denitrogenation dephosphorizing produces electricity device, it is characterised in that：Including sequentially connected water tank, anaerobic pond, anoxic pond, aerobic tank
And sedimentation basin, it is separated by proton exchange membrane between anaerobic pond and aerobic tank, wherein sun of the anaerobic pond as microbiological fuel cell
Pole room, cathode chamber of the aerobic tank as microbiological fuel cell, anode chamber and cathode chamber distinguish external resistance box, and formation is closed back
Road passes through reflux sludge tube by mixed-liquor return piping connection between anoxic pond and aerobic tank between anaerobic pond and sedimentation basin
Road connects, and is additionally provided with water outlet and mud discharging mouth on sedimentation basin, while treated sewage, produces electricl energy, and realizes A2/ O techniques with
The coupling of two kinds of technique of microbiological fuel cell；The anaerobic pond and aerobic tank are respectively by being enriched with the electrodes of a large amount of microorganisms
And conducting wire external circuits, form closed circuit.
2. denitrogenation dephosphorizing produces electricity device according to claim 1, it is characterised in that：The anaerobic pond and anoxic pond are all provided with top
Lid, interior agitating device.
3. denitrogenation dephosphorizing produces electricity device according to claim 1, it is characterised in that：Aerator is set in the aerobic tank.
4. denitrogenation dephosphorizing produces electricity device according to claim 1, it is characterised in that：The anaerobic pond, anoxic pond, aerobic tank and
The bottom of sedimentation basin is funnel-form, and outlet at bottom is equipped with drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133941.1A CN105600930B (en) | 2016-03-09 | 2016-03-09 | Denitrogenation dephosphorizing produces electricity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133941.1A CN105600930B (en) | 2016-03-09 | 2016-03-09 | Denitrogenation dephosphorizing produces electricity device |
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| Publication Number | Publication Date |
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| CN105600930A CN105600930A (en) | 2016-05-25 |
| CN105600930B true CN105600930B (en) | 2018-10-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381779B (en) * | 2017-09-01 | 2020-09-01 | 上海理工大学 | Sewage biological electrical stimulation treatment and tail gas synergistic wetland purification system |
| CN107746164B (en) * | 2017-11-23 | 2023-06-09 | 沈阳建筑大学 | electrochemical-AAO device for reducing sludge amount in sewage treatment and treatment method thereof |
| CN109912145B (en) * | 2019-04-01 | 2022-02-15 | 北京工业大学 | Aerobic granular sludge power generation device |
| CN111635004A (en) * | 2020-04-30 | 2020-09-08 | 中国科学院生态环境研究中心 | Sewage biological treatment device and process and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006081963A (en) * | 2004-09-14 | 2006-03-30 | Hitachi Kiden Kogyo Ltd | Method and apparatus for treating sludge-containing returned water |
| CN103123977A (en) * | 2013-03-07 | 2013-05-29 | 浙江工商大学 | Simultaneous nitrogen and phosphorus removal microbial fuel cell |
| CN104386818A (en) * | 2014-11-17 | 2015-03-04 | 浙江大学 | Wastewater treatment system and method employing dual-chamber MFC (microbial fuel cell) combined with A/O process |
| CN205419925U (en) * | 2016-03-09 | 2016-08-03 | 沈阳建筑大学建筑设计研究院 | Electric installation is produced to nitrogen and phosphorus removal |
-
2016
- 2016-03-09 CN CN201610133941.1A patent/CN105600930B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006081963A (en) * | 2004-09-14 | 2006-03-30 | Hitachi Kiden Kogyo Ltd | Method and apparatus for treating sludge-containing returned water |
| CN103123977A (en) * | 2013-03-07 | 2013-05-29 | 浙江工商大学 | Simultaneous nitrogen and phosphorus removal microbial fuel cell |
| CN104386818A (en) * | 2014-11-17 | 2015-03-04 | 浙江大学 | Wastewater treatment system and method employing dual-chamber MFC (microbial fuel cell) combined with A/O process |
| CN205419925U (en) * | 2016-03-09 | 2016-08-03 | 沈阳建筑大学建筑设计研究院 | Electric installation is produced to nitrogen and phosphorus removal |
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| CN105600930A (en) | 2016-05-25 |
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Address after: 110000 No.9-10 Jianyuan Street, Shenhe District, Shenyang City, Liaoning Province Patentee after: Institute of Planning and Architectural Design, Shenyang Architectural University Address before: 110168 Liaoning province Shenyang Hunnan Hunnan Road No. 9 University of Architecture Design Institute Patentee before: Architectural Designing Institute of Shenyang Jianzhu University |
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Address after: 110015 a, 9-10 Jianyuan street, Shenhe District, Shenyang City, Liaoning Province Patentee after: Shenyang Architecture University Design Group Co.,Ltd. Address before: 110000 a, No. 9-10, Jianyuan street, Shenhe District, Shenyang City, Liaoning Province Patentee before: Institute of Planning and Architectural Design, Shenyang Architectural University |