CN207276287U - A kind of more cathode chamber denitrification dephosphorization electricity production devices of biofilm - Google Patents
A kind of more cathode chamber denitrification dephosphorization electricity production devices of biofilm Download PDFInfo
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- CN207276287U CN207276287U CN201720925832.3U CN201720925832U CN207276287U CN 207276287 U CN207276287 U CN 207276287U CN 201720925832 U CN201720925832 U CN 201720925832U CN 207276287 U CN207276287 U CN 207276287U
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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 more cathode chamber denitrification dephosphorization electricity production devices of biofilm, belong to technical field of sewage.Including sequentially connected anaerobic pond, primary sedimentation tank, aerobic tank, anoxic pond and final deposition pool, wherein anode chamber of the anaerobic pond as microbiological fuel cell, aerobic tank, anoxic pond and final deposition pool as microbiological fuel cell cathode chamber and be looped around anaerobic pond periphery set, outer connecting resistance, three pool walls of anaerobic pond are respectively mounted proton exchange membrane respectively for anode chamber and cathode chamber.Separated between anaerobic pond and aerobic tank, anoxic pond and final deposition pool by proton exchange membrane, proton exchange membrane can freely be closed by baffle.Connected between primary sedimentation tank and anoxic pond by surmounting sludge pipeline, aerobic tank uses biofilm nitration processes, is connected respectively by returned sludge pipeline between final deposition pool and anaerobic pond, outlet pipeline and mud discharging mouth are additionally provided with final deposition pool, while treated sewage, produce electricl energy.The utility model effectively reduces the concentration of COD, TP and TN in sewage, and stable magnitude of voltage is broadly generated using electron acceptor.
Description
Technical field
The invention belongs to technical field of sewage, is produced more particularly to a kind of more cathode chamber denitrification dephosphorizations of biofilm
The new process produced electricl energy while the pollutant such as electric installation, COD, nitrogen, phosphorus in treated sewage.
Background technology
Conventional denitrification dephosphorization process is mainly made 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 handled
Biology does not perform to due effect also at many aspects, such as causes one containing substantial amounts of chemical energy etc. in microorganism
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 the nitrogen in sewage, phosphorus without obvious removal effect.Denitrification
The anaerobic pond of dephosphorization process possesses condition needed for anode of microbial fuel cell room, and aerobic tank, anoxic pond and final deposition pool have the moon
Condition needed for pole room, can introduce the principle of microbiological fuel cell in the process, it is produced on the basis of original function
Raw electric energy.Technical finesse sewage is produced electricity using denitrification dephosphorization, can both make full use of Denitrifying Phosphorus Removal Technology energy-saving and emission-reduction
Advantage, and the chemical energy of dirty Organic substance in water can be converted into electric energy, achieves many things at one stroke, not only with good social benefit and
Environmental benefit, can also obtain considerable economic benefit, be a kind of production capacity type sewage disposal technology.
There are sludge settling is difficult and the problems such as be easy to run off for sewage plant traditional activated sludge process.The biological membrane processing method of sewage
It is a kind of sewage aerobic biologic treating technique arranged side by side with activated sludge process, is a kind of efficient wastewater treatment method.Biomembrane
Refer to all biologically active bodies and material for adhering to by certain medium, fixing.All needed in biomembrane attachment and fixation procedure
Certain medium is wanted to undertake and complete to fix, this medium is known as biofilm carrier, also referred to as carrier filler.Filler is biomembrane
Rely the place inhabited, be the carrier of biomembrane, while also play the role of retaining suspended matter.Biofilm have sludge quantity it is few,
Sludge bulking will not be produced, the variation to the water quality and quantity of waste water has the advantages that to well adapt to ability, operational management is simple.
The technique for occurring largely coupling with MFC in recent years, such as A2O、A/O、A2N etc., these techniques are directly by aerobic tank
As the cathode chamber of MFC, just with O2For the electron acceptor of cathode, a large amount of NO3-N and NO2-Ns present in technique are then
Almost it is not used as the electron acceptor of MFC.There is a situation where that electron acceptor does not make full use of.
The content of the invention
For above-mentioned technical problem, in order to overcome during treated sewage, causing largely has function
The waste in source, the deficiency that no renewable green energy resource produces, improves existing MFC couplings electricity production technique, the present invention and provides
A kind of more cathode chamber denitrification dephosphorizations electricity production devices of biofilm, the device can not only reduce the dense of COD, TN and TP in sewage
Spend and purify sewage, and can broadly be produced electricl energy using electron acceptor.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of more cathode chamber denitrification dephosphorizations electricity production devices of biofilm of the present invention, including sequentially connected anaerobic pond, just
Heavy pond, aerobic tank, anoxic pond and final deposition pool, wherein anode chamber of the anaerobic pond as microbiological fuel cell, aerobic tank, anoxic pond
With cathode chamber of the final deposition pool as microbiological fuel cell, anode chamber and cathode chamber outer connecting resistance respectively, anaerobic pond and aerobic tank,
Separate by proton exchange membrane between anoxic pond and final deposition pool, connected between primary sedimentation tank and anoxic pond by surmounting sludge pipeline, eventually
It is heavy to be connected between pond and anaerobic pond by returned sludge pipeline, outlet pipeline and mud discharging mouth are additionally provided with final deposition pool, in treated sewage
While, produce electricl energy.
Further, the aerobic tank, anoxic pond and final deposition pool are looped around the setting of anaerobic pond periphery.
Further, the anaerobic pond three pool walls adjacent with aerobic tank, anoxic pond, final deposition pool are mounted on proton friendship
Change film.
Further, proton exchange film location is corresponded on the anaerobic pond side wall baffle, free switch proton exchange is set
Film.
Further, three anodes are set in the anode chamber, correspond to the cathode of three cathode chambers, wherein aerobic tank respectively
Cathode chamber is using oxygen as electron acceptor, and anoxic pond cathode chamber and final deposition pool cathode chamber are using nitrate as electron acceptor.
Further, the aerobic tank is biofilm reactor, and filler is filled in pond, and bottom of pond is provided with aeration sand head, exposes
Connect air compressor outside gas sand head.
Further, the inlet pipeline, sludge surmount and pump are respectively connected with sludge reflux pipeline.
Further, the bottom of the anaerobic pond, primary sedimentation tank, aerobic tank, anoxic pond and final deposition pool is funnel-form, bottom
Outlet is equipped with valve.
It is an advantage of the invention that：
1. the present invention can effectively reduce COD, TP and TN in sewage using denitrifying phosphorus removal technique processing sanitary sewage
Concentration, stable magnitude of voltage is broadly generated using electron acceptor, has not only effectively handled the pollutant in sewage, but also
Generate electric energy.Combined system stability and high efficiency denitrogenation dephosphorizing.Place capacity is reduced, reduces operating cost, reduces and takes up an area.
2. the present invention establishes more cathode chamber denitrification dephosphorization electricity production systems, strengthen decontamination and electricity generation ability.
3. the present invention strengthens dephosphorization and the electricity production effect of microorganism in anode chamber's anoxic cathode chamber, acquisition has electricity production and anti-concurrently
The denitrification dephosphorization electricity production bacterium of nitrification and phosphorus removal function.
Brief description of the drawings
Fig. 1 is the plan of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the B-B sectional views of Fig. 1.
In figure:1. inlet pipeline, 2. anaerobic ponds, 3. primary sedimentation tanks, 4. aerobic tanks, 5. anoxic ponds, 6. final deposition pools, 7. pumps, 8.
Resistance, 9. voltmeters, 10. proton exchange membrane, 11. carbon felts, 12. returned sludge pipelines, 13. surmount sludge pipeline, 14. outlet pipes
Road, 15. baffles.
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 sequentially connected anaerobic pond 2, primary sedimentation tank 3, aerobic tank 4, anoxic pond 5
With final deposition pool 6, wherein anode chamber of the anaerobic pond 2 as microbiological fuel cell, aerobic tank 4, anoxic pond 5, final deposition pool 6 are as micro-
The cathode chamber of biological fuel cell is set on 2 periphery of anaerobic pond, anode chamber and cathode chamber outer connecting resistance 8 respectively, anaerobic pond 2 with it is good
Separated between oxygen pond 4, anoxic pond 5, final deposition pool 6 by proton exchange membrane 10, by surmounting sludge between primary sedimentation tank 3 and anoxic pond 5
Pipeline 13 connects, and is connected between final deposition pool 6 and anaerobic pond 2 by returned sludge pipeline 12, and outlet pipeline 14 is additionally provided with final deposition pool 6
And mud discharging mouth, while treated sewage, produce electricl energy, realize the coupling of denitrification dephosphorization and two kinds of technique of microbiological fuel cell
Close.
The inlet pipeline 1, surmount and be respectively connected with pump 7 on sludge pipeline 13 and returned sludge pipeline 12.Aerobic tank 4 is built-in
There is filler (all types of fillers such as floating type, fixed), the place rely and inhabited is provided for biomembrane, in aerobic tank 4 also
If aerator.The aerobic tank 4, anoxic pond 5 and final deposition pool 6 be looped around anaerobic pond periphery setting, the anaerobic pond 2 with it is aerobic
Three adjacent pool walls of pond 4, anoxic pond 5, final deposition pool 6 are mounted on proton exchange membrane 10.It is the anaerobic pond 2, primary sedimentation tank 3, good
The bottom in oxygen pond 4, anoxic pond 5 and final deposition pool 6 is funnel-form, and outlet at bottom is equipped with valve.
The present invention during treated sewage, in anode chamber both made by anode chamber of the anaerobic pond 2 as system, organic matter
For the electron donor produced electricl energy, and as the electron donor of denitrification dephosphorization.The present invention establishes more cathode chamber denitrification dephosphorizations
Electricity production system, strengthens decontamination and electricity generation ability.Wherein aerobic tank 4, anoxic pond 5 and final deposition pool 6 are respectively as cathode chamber.Denitrification
The electron acceptor of dephosphorization electricity production system plays a role in the cathode chamber of aerobic tank 4, anoxic pond 5 and final deposition pool 6 respectively.Aerobic tank 4
In cathode chamber, microorganism receives electronics and proton that anode chamber passes over, is by oxygen reduction using oxygen as electron acceptor
Water, and produce electric current in external circuit, oxygen herein is at the same time by ammonium oxidation into cultured water or nitrate nitrogen.
Anode chamber's water outlet is actually mud mixture, the mud-water separation in primary sedimentation tank, and denitrification dephosphorization is rich in sludge
Bacterium is produced electricity, is rich in phosphate in water, the water outlet of aerobic tank cathode chamber is rich in nitrate or nitrite.Primary sedimentation tank is removed rich in denitrification
The sludge of phosphorus electricity production bacterium surmounts into anoxic pond, and excessive suction phosphorus is carried out as electron acceptor using nitrate nitrogen or cultured water, and
Receive the electronics of cathode surface, so as to reach the effect of synchronous denitrification dephosphorizing electricity production.Anoxic pond water outlet carries out mud by final deposition pool
Water separates, and the denitrification dephosphorization electricity production bacterium positioned at the cathode electrode surface of final deposition pool can react away remaining nitrate nitrogen or nitrous
State nitrogen, the sludge part to precipitate are drained, and a part is back to anode chamber, the processing water discharge system after precipitation.More
In cathode chamber denitrification dephosphorization electricity production system, using multiple cathodes, the energy and the anti-nitre of promotion system can be more collected
The denitrification dephosphorization electricity production technique that the visible system of phosphorus is eliminated than single cathode chamber has stronger decontamination and electricity generation ability.
The present invention strengthens the dephosphorization of microorganism in anode chamber's anoxic cathode chamber and electricity production effect, acquisition have electricity production and anti-nitre concurrently
Change the denitrification dephosphorization electricity production bacterium of phosphorus removal functional.Obtain and had concurrently under anaerobic to extracellular in anode chamber and anoxic cathode chamber
Release electronics is excessively released phosphorus and is received the electronics progress denitrification of anoxic cathode using nitrate as electron acceptor under anoxic conditions
With the microorganism of denitrification dephosphorization function, denitrification dephosphorization electricity production bacterium can be named as.The appearance of this bacterium perfect can be integrated
Electricity production and dephosphorization.Three pool walls adjacent with aerobic tank 4, anoxic pond 5, final deposition pool 6 of anaerobic pond 2 are respectively mounted proton exchange membrane 10.
10 position of proton exchange membrane is corresponded on the anaerobic pond side wall baffle 15 is set, can be by 15 free switch of baffle.Anode is indoor
Three anodes correspond to the cathode of three different cathode chambers.For 4 cathode chamber of aerobic tank mainly using oxygen as electron acceptor, anoxic pond 5 is cloudy
Pole room and 6 cathode chamber of final deposition pool are mainly using nitrate as electron acceptor.Three groups of electrodes existing for the system, produce three it is different
Voltage, can increase the electricity generation ability of system.Three groups of electrodes can be carried out by the switch conditions of controllable register 15 individually or joined
Closing operation.
Sanitary sewage is delivered to anaerobic pond 2, under anaerobic, denitrification phosphorus-collecting electricity production bacterium oxygenolysis organic carbon source,
Electronics and proton are produced, electronics is delivered to cathode through external circuit, forms electric current, and proton enters cathode by proton exchange membrane 10
Room, while phosphorus is discharged, sewage flows through primary sedimentation tank 3, enters aerobic tank 4, and under the action of nitrifier, the ammonia nitrogen in sewage is turned
Nitrate nitrogen is turned to, dissolved oxygen receives electronics as the electron acceptor of 4 cathode of aerobic tank.Then anoxic pond 5 is flowed into, denitrification gathers
Phosphorus produces electricity bacterium and carries out excessive suction phosphorus as electron acceptor using NO3-N and NO2-N in anoxic pond 5, and nitrogen is with gaseous compound
Outside form discharge system, produced electricity so as to fulfill synchronous denitrification dephosphorizing.Remaining nitrate in the sewage mixed liquor of last final deposition pool 6
The electricity transmitted with nitrite continuation under the action of denitrification dephosphorization produces electricity bacterium as electron acceptor receiving from 6 cathode of final deposition pool
Son, processing water are completed after mud-water separation through being excluded by outlet pipeline 14.
Fig. 2 is the A-A sectional views of the present invention, and anaerobic pond 2 is used as anode chamber, both sides respectively with the anoxic pond as cathode chamber
5th, aerobic tank 4 is connected with final deposition pool 6, and yin, yang pole room is separated by proton exchange membrane 10, and cathode and anode material therefor is carbon felt 11, by
Copper conductor connects, outer connecting resistance 8, and 8 liang of termination voltmeters 9 of resistance carry out the measure of magnitude of voltage.
Fig. 3 is the B-B sectional views of the present invention, and anaerobic pond 2 is used as anode chamber, is connected with the anoxic pond 5 as cathode chamber,
Yin, yang pole room is separated by proton exchange membrane 10, and cathode and anode material therefor is carbon felt 11, is connected by copper conductor, outer connecting resistance 8, electricity
8 liang of termination voltmeters 9 of resistance carry out the measure of magnitude of voltage.
Claims (8)
- A kind of 1. more cathode chamber denitrification dephosphorization electricity production devices of biofilm, it is characterised in that：Including sequentially connected anaerobic pond, The anode chamber of primary sedimentation tank, aerobic tank, anoxic pond and final deposition pool, wherein anaerobic pond as microbiological fuel cell, aerobic tank, anoxic The cathode chamber of pond and final deposition pool as microbiological fuel cell, anode chamber and cathode chamber outer connecting resistance respectively, anaerobic pond with it is aerobic Separate by proton exchange membrane between pond, anoxic pond and final deposition pool, connected between primary sedimentation tank and anoxic pond by surmounting sludge pipeline, Connected between final deposition pool and anaerobic pond by returned sludge pipeline, outlet pipeline and mud discharging mouth are additionally provided with final deposition pool, it is dirty in processing While water, produce electricl energy.
- 2. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：It is described aerobic Pond, anoxic pond and final deposition pool are looped around the setting of anaerobic pond periphery.
- 3. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：The anaerobism Pond three pool walls adjacent with aerobic tank, anoxic pond, final deposition pool are mounted on proton exchange membrane.
- 4. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 3, it is characterised in that：The anaerobism Proton exchange film location is corresponded on the side wall of pond baffle, free switch proton exchange membrane are set.
- 5. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：The anode Indoor three anodes of setting, correspond to the cathode of three cathode chambers respectively, and wherein aerobic tank cathode chamber is lacked using oxygen as electron acceptor Oxygen pool cathode room and final deposition pool cathode chamber are using nitrate as electron acceptor.
- 6. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：It is described aerobic Pond is biofilm reactor, and filler is filled in pond, and bottom of pond is provided with aeration sand head, connects air compressor outside aeration sand head.
- 7. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：It is described to surmount Pump is respectively connected with sludge and returned sludge pipeline.
- 8. the more cathode chamber denitrification dephosphorization electricity production devices of biofilm according to claim 1, it is characterised in that：The anaerobism Pond, primary sedimentation tank, aerobic tank, the bottom of anoxic pond and final deposition pool are funnel-form, and outlet at bottom is equipped with valve.
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| CN107324483A (en) * | 2017-07-27 | 2017-11-07 | 沈阳建筑大学建筑设计研究院 | The many cathode chamber denitrification dephosphorization electricity production devices of biomembrance process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107324483A (en) * | 2017-07-27 | 2017-11-07 | 沈阳建筑大学建筑设计研究院 | The many cathode chamber denitrification dephosphorization electricity production devices of biomembrance process |
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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: The street in Shenhe District of Shenyang City, Liaoning Province, No. 9-10, 110016 Patentee before: Architectural Designing Institute of Shenyang Jianzhu University |
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