CN104925946B - Denitrification dephosphorization produces electricity device - Google Patents
Denitrification dephosphorization produces electricity device Download PDFInfo
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- CN104925946B CN104925946B CN201510270780.6A CN201510270780A CN104925946B CN 104925946 B CN104925946 B CN 104925946B CN 201510270780 A CN201510270780 A CN 201510270780A CN 104925946 B CN104925946 B CN 104925946B
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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 denitrification dephosphorization produces electricity device, belongs to technical field of sewage.Including the water tank being sequentially connected, anaerobic pond, preliminary sedimentation tank, Aerobic Pond, second pond, anoxic pond and final deposition pool, wherein anaerobic pond as microbiological fuel cell anode chamber, second pond as microbiological fuel cell cathode chamber, anode chamber and cathode chamber difference outer meeting resistance case, separated by amberplex between anaerobic pond and second pond, connected by surmounting sludge pipeline between preliminary sedimentation tank and anoxic pond, connected by returned sludge pipeline respectively between Aerobic Pond and second pond and final deposition pool and anaerobic pond, water outlet and mud discharging mouth are additionally provided with final deposition pool, while sewage is processed, produce electric energy, realize denitrification dephosphorization and two kinds of couplings of technique of microbiological fuel cell.The present invention processes sanitary sewage using denitrifying phosphorus removal technique, reduces the concentration of COD, TP and the TN in sewage, and the magnitude of voltage of stabilization is produced while purifying water body, has effectively processed the pollutant in sewage, and electric energy is generated again.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of denitrification dephosphorization electricity production device is dirty in treatment
The new technology of electric energy is produced while the pollutants such as COD, nitrogen, phosphorus in water.
Background technology
Conventional denitrification dephosphorization process is mainly made up of anaerobism, aerobic, anoxic reacter, is divided into single sludge processes and double dirts
Bricklayer's's skill.In single sludge processes, nitrobacteria and Denitrifying Phosphate Accumulating Organisms are present in same reactor, experiencing detest successively
Oxygen, anoxic, aerobic three kinds of running environment, but in two sludge system, nitrobacteria each is present in individually with denitrifying bacteria
Reactor in, they can grow in respective optimum operation environment, and can preferably solve to nitrify in traditional handicraft
Bacterium and the competition contradiction of polyP bacteria.But, denitrifying phosphorus removal technique has tamed the micro- of maturation during sanitary sewage is processed
It is biological not perform to due effect also at many aspects, such as containing substantial amounts of chemical energy etc. in microorganism, cause one
The fixed wasting of resources.Microbiological fuel cell is the organic matter in the catalytic action degraded sewage using microorganism, by chemical energy
The novel reactor of electric energy is converted into, but to reducing the pollutants such as nitrogen, phosphorus in sewage without obvious removal effect.It is relevant anti-
The research that nitrification and phosphorus removal technique is coupled with microbiological fuel cell at home and abroad still belongs to blank field, coupling device successful operation
Afterwards, the electric energy of stabilization is produced while sewage is processed, with theory and application value very high.
The content of the invention
For above-mentioned technical problem, in order to overcome during sewage is processed, causing substantial amounts of has function
The waste in source, without the deficiency that renewable green energy resource is produced, the present invention provides a kind of denitrification dephosphorization electricity production device, and it is will be anti-
The new device that nitrification and phosphorus removal technique is coupled with microbiological fuel cell, the device can not only reduce COD, TN and TP in sewage
Concentration and purify sewage, and can utilize microorganism catalytic action produce electric energy.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of denitrification dephosphorization produces electricity device, including be sequentially connected water tank, anaerobic pond, preliminary sedimentation tank, Aerobic Pond, two sink
Pond, anoxic pond and final deposition pool, wherein anaerobic pond as microbiological fuel cell anode chamber, second pond as Microbial fuel electricity
The cathode chamber in pond, anode chamber and cathode chamber difference outer meeting resistance case, are separated between anaerobic pond and second pond by amberplex,
Connected by surmounting sludge pipeline between preliminary sedimentation tank and anoxic pond, passed through respectively between Aerobic Pond and second pond and final deposition pool and anaerobic pond
Returned sludge pipeline is connected, and water outlet and mud discharging mouth are additionally provided with final deposition pool, while sewage is processed, produces electric energy, is realized anti-
Nitrification and phosphorus removal and two kinds of couplings of technique of microbiological fuel cell.
Further, the inlet pipeline of the water tank, sludge surmount and are respectively connected with pump with sludge reflux pipeline.
Further, the bottom of the anaerobic pond, preliminary sedimentation tank, Aerobic Pond, second pond, anoxic pond and final deposition pool is funnel
Shape, outlet at bottom is equipped with draining valve.
The technical solution adopted for the present invention to solve the technical problems is：
The invention has the advantages that：
The present invention processes sanitary sewage using denitrifying phosphorus removal technique, can be in the dense of COD, TP and the TN in reducing sewage
Degree, generates the magnitude of voltage of stabilization while purifying water body, both effectively processed the pollutant in sewage, and electricity is generated again
Energy.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Fig. 2 is fundamental diagram of the invention.
Fig. 3 is electricity production part of the invention schematic diagram of structure.
In figure:1. water tank, 2. anaerobic pond, 3. preliminary sedimentation tank, 4. Aerobic Pond, 5. second pond, 6. anoxic pond, 7. final deposition pool, 8.
Pump, 9. resistance box, 10. voltmeter, 11. amberplexes, 12. carbon felts, 13. surmount sludge pipeline, 14. returned sludge pipelines.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment：As shown in figure 1, the present invention includes the water tank 1, anaerobic pond 2, preliminary sedimentation tank 3, the Aerobic Pond 4, two that are sequentially connected
Heavy pond 5, anoxic pond 6 and final deposition pool 7, wherein anaerobic pond 2 as microbiological fuel cell anode chamber, second pond 5 is used as micro- life
The cathode chamber of thing fuel cell, anode chamber and cathode chamber difference outer meeting resistance case 9, are handed between anaerobic pond 2 and second pond 5 by ion
Change film 11 to separate, connected by surmounting sludge pipeline 13 between preliminary sedimentation tank 3 and anoxic pond 6, Aerobic Pond 4 and second pond 5 and final deposition pool 7
Connected by returned sludge pipeline 14 respectively and between anaerobic pond 2, delivery port and mud discharging mouth are additionally provided with final deposition pool 7, it is dirty in treatment
While water, electric energy is produced, realize denitrification dephosphorization and two kinds of couplings of technique of microbiological fuel cell.
The inlet pipeline of the water tank 1, sludge to surmount and be respectively connected with pump 8 on pipeline 13 and sludge reflux pipeline 14.It is described
The bottom of anaerobic pond 2, preliminary sedimentation tank 3, Aerobic Pond 4, second pond 5, anoxic pond 6 and final deposition pool 7 is funnel-form, and outlet at bottom is all provided with
There is draining valve.
The present invention process sewage during, using denitrifying phosphorus removal technique reduction sewage in COD, TN and TP it is dense
Degree, purifies sewage, using anaerobic pond 2 as the anode chamber of microbiological fuel cell, second pond 5 as microbiological fuel cell the moon
Pole room, centre is separated by amberplex 11, and negative and positive the two poles of the earth are connected by copper conductor and form external circuit, with anaerobism, aerobic, Anoxic Phase
With reference to continuous flow double sludge denitrification dephosphorization process based on, while sewage is processed, produce certain electric energy, realize anti-
Nitrification and phosphorus removal and two kinds of couplings of technique of microbiological fuel cell.The present invention COD, ammonia nitrogen and total phosphorus in sewage during running
Water quality index is respectively 300mg/L, 40mg/L and 10mg/L or so, the dissolved oxygen concentration of anaerobic pond 2, Aerobic Pond 4 and anoxic pond 6
Respectively 0.2mg/L, 1.0-2.0mg/L and 0.5mg/L, the water temperature of Aerobic Pond 4, the second pond 5 as cathode chamber and anoxic pond 6
At 25 DEG C, sludge concentration (MLSS) is controlled in 5000mg/L for control.Sanitary sewage is delivered to anode anaerobic pond 2, in anaerobic condition
Under, bacterium oxidation Decomposition organic carbon source is produced electricity, produce electronics and proton, electronics to be delivered to negative electrode through external circuit, form electric current, proton
Cathode chamber is entered into by amberplex 11, at the same Denitrifying Phosphate Accumulating Organisms by intracellular Quadrafos with soluble phosphate
Form be discharged into water, by the use of this during the energy that produces lower fatty acid is synthesized organic deposit material PHB under
Used by one stage, the release of phosphorus is now shown as, sewage flows through preliminary sedimentation tank 3, enters into Aerobic Pond 4, in the presence of nitrifier,
It is nitrate nitrogen by the mineralized nitrogen in sewage, then flows into negative electrode second pond 5, cathode chamber occurs redox under anaerobic
Reaction, is outside nitrite or nitrogen discharge system, to be finally flowed into anoxic pond 6, denitrification by the nitrate reduction in sewage
PolyP bacteria carries out excessive suction phosphorus using NO3-N and NO2-N in anoxic pond 6 as electron acceptor, and nitrogen is with gaseous compound shape
Outside formula discharge system, so as to reach synchronous denitrification dephosphorizing effect.Anode and cathode is connected by wire, forms external circuit, and then generate electricity
Potential difference.Need continuously to detect the change in concentration and electricity production situation of COD, TN, TP in course of reaction during startup optimization.
In fig. 2, device global shape is rectangle, and the bottom of each reactor is funnel-form in device, is provided with draining valve.
During startup optimization, the water inlet of experiment, sludge surmount with sludge reflux using pump conveying device, and remaining current presses gravity
Stream operating, sequentially passes through anaerobic pond (anode chamber) 2, preliminary sedimentation tank 3, Aerobic Pond 4, second pond (cathode chamber) 5, anoxic pond 6, final deposition pool
7, purified treatment is carried out to sewage.
As shown in figure 3, being the electricity production part schematic diagram of structure of apparatus of the present invention, cathode chamber (anaerobic pond 2) and cathode chamber (two
Heavy pond 5) it is connected, centre is separated by amberplex 11, and cathode and anode material therefor is carbon felt 12, is connected by copper conductor, external electricity
Resistance case 9,9 liang of termination voltmeters 10 of resistance box carry out the measure of magnitude of voltage.
Claims (3)
1. a kind of denitrification dephosphorization produces electricity device, it is characterised in that：Including the water tank, anaerobic pond, preliminary sedimentation tank, aerobic being sequentially connected
Pond, second pond, anoxic pond and final deposition pool, wherein anaerobic pond as microbiological fuel cell anode chamber, second pond is used as micro- life
The cathode chamber of thing fuel cell, anode chamber and cathode chamber difference outer meeting resistance case, by ion exchange between anaerobic pond and second pond
Film separates, and is connected by surmounting sludge pipeline between preliminary sedimentation tank and anoxic pond, between Aerobic Pond and second pond and final deposition pool and anaerobic pond
Connected by returned sludge pipeline respectively, water outlet and mud discharging mouth are additionally provided with final deposition pool, while sewage is processed, produce electricity
Can, realize denitrification dephosphorization and two kinds of couplings of technique of microbiological fuel cell.
2. denitrification dephosphorization produces electricity device according to claim 1, it is characterised in that：The inlet pipeline of the water tank, sludge
Surmount and be respectively connected with pump with returned sludge pipeline.
3. denitrification dephosphorization produces electricity device according to claim 1, it is characterised in that：It is the anaerobic pond, preliminary sedimentation tank, aerobic
The bottom of pond, second pond, anoxic pond and final deposition pool is funnel-form, and outlet at bottom is equipped with draining valve.
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| CN104925946B true CN104925946B (en) | 2017-06-09 |
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| CN105585124B (en) * | 2016-03-09 | 2018-07-03 | 沈阳建筑大学建筑设计研究院 | Biofilm denitrification dephosphorization produces electricity device |
| CN107364948A (en) * | 2017-07-27 | 2017-11-21 | 沈阳建筑大学建筑设计研究院 | Activated sludge fado cathode chamber denitrification dephosphorization produces electricity device |
| CN113045144B (en) * | 2021-04-23 | 2023-06-16 | 盐城工学院 | Tower equipment for denitrification, denitrification and dephosphorization |
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| CN201224701Y (en) * | 2008-04-30 | 2009-04-22 | 北京工业大学 | Continuous flow double sludge denitrification dephosphorization process teaching apparatus |
| US8663852B2 (en) * | 2010-12-22 | 2014-03-04 | University Of Massachusetts | Aerobic microbial fuel cell |
| CN102110835A (en) * | 2011-01-21 | 2011-06-29 | 北京航空航天大学 | Microbe fuel cell device for enhanced nitrogen removal in AAO sewage treatment technology |
| CN103715444B (en) * | 2013-11-25 | 2015-10-14 | 大连理工大学 | Batch-type electrode reversal microbial fuel cell and application thereof |
| CN104386818B (en) * | 2014-11-17 | 2016-03-02 | 浙江大学 | The two rooms MFC Waste Water Treatment combined with A/O technique and method thereof |
| CN204714596U (en) * | 2015-05-25 | 2015-10-21 | 沈阳建筑大学建筑设计研究院 | A kind of denitrification dephosphorization electrogenesis device |
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