CN105502818A - Membrane component and MBR (Membrane Biological Reaction) system applying same - Google Patents
Membrane component and MBR (Membrane Biological Reaction) system applying same Download PDFInfo
- Publication number
- CN105502818A CN105502818A CN201510922039.3A CN201510922039A CN105502818A CN 105502818 A CN105502818 A CN 105502818A CN 201510922039 A CN201510922039 A CN 201510922039A CN 105502818 A CN105502818 A CN 105502818A
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- membrane
- reaction pond
- biological reaction
- bio
- reaction system
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F3/28—Anaerobic digestion processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention provides a membrane component, comprising a framework, two filtering membranes, electrodes and a water outlet, wherein the two filtering membranes are respectively arranged two opposite side faces of the framework in a pasting manner, the framework and the filtering membranes together define a containing space, the electrodes are arranged in the containing space in a distributing manner, the water outlet is arranged on the framework in a penetrating manner, and the containing space is communicated with the outside through the water outlet. The invention also provides an MBR (Membrane Biological Reaction) system by utilizing the membrane component. The membrane component provided by the invention does not need chemical cleaning, effectively prevents the filtering membrane from being polluted, and the MBR system by utilizing the membrane component has the advantages of small gas water ratio required by aeration scrub and low operating cost.
Description
Technical field
The present invention relates to field of environment engineering technology, be specifically related to a kind of membrane module and apply the membrane bio-reaction system of described membrane module.
Background technology
Membrane bio-reaction system is the Novel state Waste Water Treatment that membrane separation technique and biologic treating technique organically combine, and mainly utilizes the active sludge in membrane module trap water and larger molecular organics.Membrane bio-reaction system is divided into built-in and external placed type two kinds according to the situation difference that membrane module uses, built-in is in biochemical reaction tank by film direct impregnation, directly extract water purification out from film unit, external placed type is then, with pump, the water of biological reaction tank is carried out cross flow filter circulation by membrane module, obtains clean through water.
Built-in membrane bio-reaction system due to working pressure low, the membrane area of use is comparatively large, and external membrane bio-reaction system is owing to being large discharge circulation cross flow filter under the pressure of pump, and the flux of film is comparatively large, and the membrane area of use is less, but power consumption is larger.
Dielectrophoresis is the translational movement that the neutral corpuscle being positioned at non-well-balanced electric field produces due to the effect of dielectric depolarization.Produce moment of dipole on neutral corpuscle identical but opposite polarity electric charge to represent with two carried charges, when they are on particle interface during mal-distribution, produce a macroscopical moment of dipole.When this moment of dipole is arranged in unshapeliness electric field, can produce a power in the local electric field strength difference on particulate both sides, this power is called as dielectrophoresis force.Different from the specific inductivity of medium owing to being suspended in the particulate in medium, particulate moves to the direction of stronger strength of electric field, is called positive dielectrophoresis, or the direction of more weak strength of electric field is moved, and is referred to as negative dielectrophoresis.
Use the membrane bio-reaction system filtered wastewater of prior art, particulate in waste water is assembled under the pressure of pump on membrane module, membrane module can be caused to pollute, easily block and cause work-ing life short, change membrane element serious shortcomings costly, seriously constrain the development of membrane bio-reaction system in Waste Water Treatment.So be badly in need of a kind ofly solving membrane module in membrane bio-reaction system and easily blocking the device with fouling technical barrier.
Summary of the invention
The technical problem with fouling is easily blocked in order to solve membrane module in membrane bio-reaction system, the invention provides the membrane module of membrane module pollution problem in a kind of effective solution membrane bioreactor, membrane module provided by the invention also have clean that required gas-water ratio is little without the need to matting, aeration, membrane element can monolithic is changed and running cost is little advantage.
The invention provides a kind of membrane module, comprise skeleton, filtering membrane, electrode and water outlet, described filtering membrane quantity is two, be attached at two opposite flanks of described skeleton respectively, described skeleton and described filtering membrane surround receiving space jointly, described pole layout is in described receiving space, and described water outlet runs through is located at described skeleton, and described receiving space is connected with outside by described water outlet.
In a kind of preferred embodiment of membrane module provided by the invention, described skeleton adopts acrylonitrile-butadiene-styrene copolymer to make.
In a kind of preferred embodiment of membrane module provided by the invention, described electrode is interdigital electrode and is electrically connected with external source.
The present invention also provides a kind of membrane bio-reaction system applying above-mentioned membrane module, comprise connect successively adjustment reaction tank, activated sludge reaction pond, membrane biological reaction pond and outlet sump, some described membrane modules are located in described membrane biological reaction pond.
In a kind of preferred embodiment of membrane bio-reaction system provided by the invention, described activated sludge reaction pond keeps anaerobic environment, enrichment culture denitrifying bacterium.
In a kind of preferred embodiment of membrane bio-reaction system provided by the invention, described membrane biological reaction pond keeps oxygen-enriched environment, enrichment culture nitrobacteria, described membrane biological reaction pond also comprises the aerating apparatus of the bottom being located at described membrane biological reaction pond, and corresponding described membrane module carries out aeration.
In a kind of preferred embodiment of membrane bio-reaction system provided by the invention, also comprise dosing tank, described dosing tank communicates with the connecting tube between described membrane biological reaction pond and described outlet sump.
In a kind of preferred embodiment of membrane bio-reaction system provided by the invention, also comprise mud collection device, described mud collection device is connected with described outlet sump with described adjustment reaction tank, described activated sludge reaction pond, described membrane biological reaction pond respectively.
Compared to prior art, membrane module provided by the invention and the membrane bio-reaction system applying described membrane module have following beneficial effect:
One, by arrange described activated sludge reaction pond make the compound in sewage can utilize by the anaerobion of enrichment in mud, the NO particularly in sewage
2 -n is reduced under anoxic conditions by denitrifying bacterium
2.
Two, by arrange membrane biological reaction pond make the compound in sewage can utilize by the aerobic microbiological of enrichment in mud, particularly most ammonia-nitrogen is oxidized to NO by nitrobacteria
2 -ion.
Three, the sewage energy solid-liquid separation after processing is made by arranging described filtering membrane.
Four, by arranging described electrode and described aerating apparatus, the fine particles in sewage is made to scold from described filter membrane surface under dielectrophoresis force effect, and away from described filter membrane surface under the air blast sent at described aerating apparatus, prevent described filtering membrane contaminated.
Five, described membrane module adopts built-in, is located in described membrane biological reaction pond by some described membrane modules, facilitates follow-uply to replace described membrane module while strengthening drainage capacity.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is membrane bio-reaction system structural representation provided by the invention;
Fig. 2 is the structural representation of the membrane module of membrane bio-reaction system shown in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, membrane bio-reaction system structural representation provided by the invention.Described membrane bio-reaction system 1 comprise connected successively by pipeline adjustment reaction tank 11, activated sludge reaction pond 12, membrane biological reaction pond 13, outlet sump 14, dosing tank 15 and mud collection device 17, described dosing tank 15 communicates with the connecting tube between described membrane biological reaction pond 13 and described outlet sump 14, and described mud collection device 17 is connected respectively with bottom described adjustment reaction tank 11, described activated sludge reaction pond 12, described membrane biological reaction pond 13 and described outlet sump 14.
Described adjustment reaction tank 11 comprises grid 111 located therein, and arranging described grid 111 can be separated solid refuse in sewage with sewage, and by regulating described grid 111 density to control isolated solid refuse size.
Described activated sludge reaction pond 12 comprises agitator 121, and described agitator 121 is located in described activated sludge reaction pond 12.Maintain anaerobic environment in described activated sludge reaction pond 12, and keep in it, being rich in denitrifying bacterium bacterium colony.
Described membrane biological reaction pond 13 comprises membrane module 131 and aerating apparatus 133, and some described membrane modules 131 are located in described membrane biological reaction pond 13, and the bottom in described membrane biological reaction pond 13 is located at by described aerating apparatus 133, and corresponding described membrane module 131 carries out aeration.
Referring to Fig. 2, is the structural representation of the membrane module of membrane bio-reaction system shown in Fig. 1.Described membrane module 131 comprises skeleton 1311, filtering membrane 1313, electrode 1315 and water outlet 1317, described skeleton 1311 forms a planar frame, described filtering membrane 1313 adopts compression molding fashion to close the planar frame two hollow face of described skeleton 1311 formation, described skeleton 1311 forms receiving space with described filtering membrane 1313, described electrode 1315 is distributed in described receiving space with described skeleton 1311 short-axis direction bending, described water outlet 1317 runs through described skeleton 1311, and described receiving space is connected with the outside of described membrane module 131.
Described skeleton 1311 material is acrylonitrile-butadiene-styrene copolymer, and described electrode 1315 is interdigital electrode and is electrically connected with external source.
Described dosing tank 15, built with hypochlorous acid drug class, can process the water pumped in described membrane biological reaction pond further.
The concrete technology flow process of membrane bio-reaction system provided by the invention is as follows: sewage flows into described equalizing tank 11, make solid refuse and liquid separation in sewage by described grid 111, after settlement of sewage for some time, enter described activated sludge reaction pond 12 by described equalizing tank 11; Described activated sludge reaction pond 12 is provided with agitator 121, while keeping anaerobic environment, by described agitator 121, sewage is mixed in described activated sludge reaction pond 12, and the denitrifying bacterium growth conditions that maintenance is wherein rich in is good; Sewage enters described membrane biological reaction pond 13 from described activated sludge reaction pond 12, by controlling wherein sewage oxygen level, pH value and nitrobacteria group, making sewage, in described membrane biological reaction pond 13, nitration reaction occur, most ammonia-nitrogen is oxidized to NO
2 -ion; Be rich in NO
2 -sewage carry out anti-nitration reaction, NO by pump reflux to described activated sludge reaction pond 12
2 -be reduced into N
2rear discharge, the water after having reacted comes back to described membrane biological reaction pond 13; By pump pressurization, sewage is filtered by described membrane module 131, suspended substance in sewage water is efficiently removed by described filtering membrane 1313, water after filtration flows out from described water outlet 1317, add the hypochlorite in described dosing tank 15, the water after process is discharged carry out further precipitin reaction in described outlet sump 14 after; Described adjustment reaction tank 11, described activated sludge reaction pond 12, described membrane biological reaction pond 13 are connected with described mud collection device 17 with the bottom of described outlet sump 14, when in described adjustment reaction tank 11, described activated sludge reaction pond 12, described membrane biological reaction pond 13 and described outlet sump 14, sludge quantity reaches a certain amount of, opening valve makes mud enter described mud collection device 17, and the mud of collection separately deals with.Described aerating apparatus bottom described membrane biological reaction pond 13 133 pairs of membrane modules 131 carry out scouring aeration, keep described membrane biological reaction pond 13 low DO concentration lessening membrane fouling speed simultaneously.Described electrode 1315 is under high-frequency alternating field effect, negative dielectrophoresis force is utilized to act in waste water on contaminate particulate, it is made to be scolded from film surface before described filtering membrane 1313, thus reach the generation preventing particulate at described filtering membrane 1313 face clustering phenomena, fundamentally solve the easy pollution problem existed in water treatment by membrane.
Described membrane bio-reaction system 1 provided by the invention has following beneficial effect:
One, by arrange described activated sludge reaction pond 12 make the compound in sewage can utilize by the anaerobion of enrichment in mud, the NO particularly in sewage
2 -n is reduced under anoxic conditions by denitrifying bacterium
2.
Two, by arrange membrane biological reaction pond 13 make the compound in sewage can utilize by the aerobic microbiological of enrichment in mud, particularly most ammonia-nitrogen is oxidized to NO by nitrobacteria
2 -ion.
Three, the sewage energy solid-liquid separation after processing is made by arranging described filtering membrane 1313.
Four, by arranging described electrode 1315 and described aerating apparatus 133, make the fine particles in sewage can scold from described filtering membrane 1313 surface under dielectrophoresis force effect, and away from described filtering membrane 1313 surface under the air blast sent at described aerating apparatus 133, prevent described filtering membrane 1313 contaminated.
Five, described membrane module 131 adopts built-in, is located in described membrane biological reaction pond 13 by some described membrane modules 131, strengthens to facilitate while drainage capacity and follow-uply to replace described membrane module 131.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a membrane module, it is characterized in that, comprise skeleton, filtering membrane, electrode and water outlet, described filtering membrane quantity is two, be attached at two opposite flanks of described skeleton respectively, described skeleton and described filtering membrane surround receiving space jointly, and described pole layout is in described receiving space, described water outlet runs through is located at described skeleton, and described receiving space is connected with outside by described water outlet.
2. membrane module according to claim 1, is characterized in that, described skeleton adopts acrylonitrile-butadiene-styrene copolymer to make.
3. membrane module according to claim 1, is characterized in that, described electrode is interdigital electrode and is electrically connected with external source.
4. an application rights requires the membrane bio-reaction system of arbitrary described membrane module in 1-3, it is characterized in that, comprise connect successively adjustment reaction tank, activated sludge reaction pond, membrane biological reaction pond and outlet sump, some described membrane modules are located in described membrane biological reaction pond.
5. membrane bio-reaction system according to claim 4, is characterized in that, described activated sludge reaction pond keeps anaerobic environment, enrichment culture denitrifying bacterium.
6. membrane bio-reaction system according to claim 4, is characterized in that, described membrane biological reaction pond keeps oxygen-enriched environment, and enrichment culture nitrobacteria, it also comprises the aerating apparatus being located at described membrane biological reaction pond, and corresponding described membrane module carries out aeration.
7. membrane bio-reaction system according to claim 4, is characterized in that, also comprises dosing tank, and described dosing tank communicates with the connecting tube between described membrane biological reaction pond and described outlet sump.
8. membrane bio-reaction system according to claim 4, it is characterized in that, also comprise mud collection device, described mud collection device is connected with described outlet sump with described adjustment reaction tank, described activated sludge reaction pond, described membrane biological reaction pond respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922039.3A CN105502818A (en) | 2015-12-11 | 2015-12-11 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
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| CN201510922039.3A CN105502818A (en) | 2015-12-11 | 2015-12-11 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
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| CN105502818A true CN105502818A (en) | 2016-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117105500A (en) * | 2023-09-01 | 2023-11-24 | 同济大学 | AnDMBR dynamic membrane component based on electrode polarity conversion and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202658051U (en) * | 2012-06-27 | 2013-01-09 | 余志� | Aquaculture wastewater biochemical treatment system |
| CN203507829U (en) * | 2013-09-10 | 2014-04-02 | 内蒙古天一环境技术有限公司 | Dielectrophoresis forward-osmosis flat permeable membrane assembly |
| CN203507828U (en) * | 2013-09-10 | 2014-04-02 | 内蒙古天一环境技术有限公司 | Dielectrophoresis hollow fiber membrane assembly |
| CN103979762A (en) * | 2014-06-12 | 2014-08-13 | 上海第二工业大学 | System for treating sludge by rotary electrodes in combination with flat sheet membrane |
| CN104096483A (en) * | 2014-08-06 | 2014-10-15 | 艾欧史密斯（上海）水处理产品有限公司 | Membrane element, device and water processing method using the membrane element |
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| CN104667754A (en) * | 2015-02-10 | 2015-06-03 | 内蒙古天一环境技术有限公司 | Dielectrophoresis in-line type membrane assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117105500A (en) * | 2023-09-01 | 2023-11-24 | 同济大学 | AnDMBR dynamic membrane component based on electrode polarity conversion and control method |
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Application publication date: 20160420 |
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