CN203754569U - High-efficiency low-energy membrane pollution delay device - Google Patents
High-efficiency low-energy membrane pollution delay device Download PDFInfo
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- CN203754569U CN203754569U CN201420169103.6U CN201420169103U CN203754569U CN 203754569 U CN203754569 U CN 203754569U CN 201420169103 U CN201420169103 U CN 201420169103U CN 203754569 U CN203754569 U CN 203754569U
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Abstract
The utility model discloses a high-efficiency low-energy membrane pollution delay device, relating to the technical field of sewage treatment. The device is characterized in that an anoxic zone is arranged at one end in a reactor main body; an aerobic zone is arranged on one side of the anoxic zone; a pre-precipitation zone is arranged on one side of the aerobic zone; a gas stripping device is arranged on one side of the pre-precipitation zone; a membrane bio-reaction zone is arranged on one side of the gas stripping device; a water inlet is formed in the upper part of the reactor main body and is connected with a pre-treatment pond; first to third backflow holes are formed in the gas stripping device; the first and second backflow holes are formed in the bottoms of the membrane bio-reaction zone and the pre-precipitation zone respectively; and the third backflow hole is formed in the upper part of the anoxic zone. According to the device, the deficiencies of high energy consumption and poor effect of an existing aerobiotic membrane bioreactor and the defects of easy blockage and short life of membrane assemblies of a facultative membrane bioreactor are overcome, the service life of the membrane assemblies is prolonged while the treatment effect is enhanced, and a good choice is provided for wide application of a membrane bioreactor process.
Description
Technical field
The utility model relates to a kind of efficient low energy and delays film polluting device, belongs to technical field of sewage.
Background technology
Membrane bioreactor is a kind of Novel sewage treatment process developing rapidly in recent years.It is the novel process that membrane separation technique and bioreaction technology are combined, and has replaced the second pond of traditional technology, and has significantly improved effluent quality.Along with the lifting of film production technology, film properties improves constantly, and its production cost also constantly declines, and is the universal condition that provides of membrane bioreactor.In recent years the membrane bioreactor occurring has the broad varietys such as aerobic type, facultative type.
At present, in aerobic type membrane bioreactor, in order to provide enough oxygen to divide to aerobic microbiological and to keep the effective flushing to membrane module, thus be generally all equipped with powerful blower fan, because operation energy consumptions are very high a bit.And good type membrane bioreactor is taking aerobic bacteria as dominant bacteria, its breeding cycle, short, dead speed was fast, formed a large amount of excess sludges, and intractability is large.Under aerobic environment, microorganism can only carry out ammonia nitrogen digestion to sewage, absorbs phosphorus, lacks anaerobism or anoxic stage, denitrogenation and release phosphorus weak effect.
Facultative type membrane bioreactor, aeration intensity is concentrated and is distributed in membrane module below, form local aerobic, all the other regions form the oxygen environment of holding concurrently, taking aerobic-anaerobic microbe as dominant microflora, the form that aerobic bacteria and amphimicrobe coexist, improve organic fast degradation, reduce the output of excess sludge, improve the effect of denitrogenation dephosphorizing, reduce the plant capacity of membrane bioreactor, but also reduce the scouring effect to membrane module simultaneously, increase the load of membrane module, therefore easy attached microbial flora on membrane module, cause the obstruction of membrane module, reduce the work-ing life of membrane module.
Utility model content
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of efficient low energy and delays film polluting device.
Efficient low energy of the present utility model delays film polluting device, and it comprises reactor body, oxygen-starved area, aerobic zone, preliminary precipitation district, membrane biological reaction district and air-lift device, one end of the inside of reactor body is provided with oxygen-starved area, one side of oxygen-starved area is provided with aerobic zone, one side of aerobic zone is provided with preliminary precipitation district, one side in preliminary precipitation district is provided with air-lift device, one side of air-lift device is provided with membrane biological reaction district, the top of reactor body is provided with water-in, water-in is connected with pre-treatment pond, on air-lift device, be provided with the first refluxing opening, the second refluxing opening and the 3rd refluxing opening, the first refluxing opening and the second refluxing opening are separately positioned on the bottom in membrane biological reaction district and preliminary precipitation district, the 3rd refluxing opening is arranged on the top of oxygen-starved area.
The beneficial effects of the utility model are: it overcomes, and existing aerobic type membrane bioreactor power consumption is large, the deficiency of weak effect and the defect that facultative type membrane bioreactor membrane module easily stops up, the life-span is short, when having strengthened treatment effect, improve the work-ing life of membrane module, for the widespread use of membrane biological reactor process provides better selection.
Brief description of the drawings
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model.
In figure: 1-reactor body; 2-oxygen-starved area; 3-aerobic zone; 4-preliminary precipitation district; 5-membrane biological reaction district; 6-air-lift device; 6-1-the first refluxing opening; 6-2-the second refluxing opening; 6-3-the 3rd refluxing opening.
Embodiment
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
As shown in Figure 1, this embodiment by the following technical solutions: it comprises reactor body 1, oxygen-starved area 2, aerobic zone 3, preliminary precipitation district 4, membrane biological reaction district 5 and air-lift device 6, one end of the inside of reactor body 1 is provided with oxygen-starved area 2, one side of oxygen-starved area 2 is provided with aerobic zone 3, one side of aerobic zone 3 is provided with preliminary precipitation district 4, one side in preliminary precipitation district 4 is provided with air-lift device 6, one side of air-lift device 6 is provided with membrane biological reaction district 5, the top of reactor body 1 is provided with water-in 7, water-in 7 is connected with pre-treatment pond 8, on air-lift device 6, be provided with the first refluxing opening 6-1, the second refluxing opening 6-2 and the 3rd refluxing opening 6-3, the first refluxing opening 6-1 and the second refluxing opening 6-2 are separately positioned on the bottom in membrane biological reaction district 5 and preliminary precipitation district 4, the 3rd refluxing opening 6-3 is arranged on the top of oxygen-starved area 2.
The processing step when work of this embodiment is:
Sewage enters efficient low energy and delays the independent oxygen-starved area in film pollution MBR, makes its local anoxic condition (dissolved oxygen is less than 2.0mg/L) that keeps at this region aeration; Aerobic reactor zone, makes its part keep oxygen condition (dissolved oxygen is greater than 2.0mg/L) at this region aeration, the local anoxic condition (dissolved oxygen is less than 2.0mg/L) that keeps; Forming aerobic microbiological is that master, facultative microbe are auxiliary microecosystem, for the nitrated and aerobic suction phosphorus of organic aerobic decomposition, ammonia nitrogen provides aerobic condition.Pollutent is degraded in this region major part.
Above-mentioned sewage, after aerobic decomposition, has formed high density mud mixture.This mud mixture enters preliminary sedimentation district, is separated with water at this region mud, and clear water is gone out by top overflow.Not aeration of preliminary sedimentation district, is anaerobic environment, and dissolved oxygen is lower than 1.0mg/L.
It is above-mentioned that through anoxic, aerobic biochemical and preliminary sedimentation district water after treatment, overflow enters membrane biological reaction district (oxygen-starved area), because of organism and suspended substance less, effectively alleviated the load of membrane module.Aeration intensity reduces greatly, and whole membrane biological reaction district (oxygen-starved area) keeps anaerobic environment, and dissolved oxygen is lower than 1.0mg/L.Form the microecosystem that facultative microbe and anaerobion coexist, release phosphorus for organic further removal, anoxic denitrification and anoxic favourable condition is provided.After the organism of various difficult degradations, microorganism, phosphorus containing sludge tunicle are held back, under macrocyclic double oxygen or anoxic condition, be decomposed into water, gas and energy by microorganism and discharge system.
Membrane biological reaction district muddy water adopts gas stripping type microkinetic reflux to reflux, and makes membrane biological reaction district (oxygen-starved area) muddy water mixed solution be back to aerobic zone, intensified denitrification and dephosphorization effect.
Phegma can also wash away preliminary sedimentation district bottom sedimentation mud to aerobic zone, imitated settled sludge.
Phegma adopts the regular switching controls of valve.Gas stripping type microkinetic reflux source of the gas is from gas blower.
Aerobic zone described above adopts rotary type blower fan aeration plate aeration mode or jet-flow aeration mode.By the layout of aeration plate or ejector, make aerobic zone form aerobic part (dissolved oxygen is a little more than 2.0mg/L) and anoxic part (the about 1.0mg/L of dissolved oxygen), realize organic aerobic decomposition, aerobic nitrification and aerobic suction phosphorus.
Be made as three independently region and virtual areas by reactor body, comprise oxygen-starved area, aerobic reactor zone, preliminary sedimentation district (virtual area), film reaction district (hypoxia response district), and install gas stripping type microkinetic reflux additional.By controlling aeration rate, make aerobic reactor zone become oxygen condition, dissolved oxygen concentration is greater than 2.0mg/L, and forming aerobic microbiological and facultative microbe is main micro-ecological environment.Negative area is aeration not, oblique pipe, and reinforcement sludge effect of settling, makes negative area go out water suspension and minimizes.By controlling aeration rate, make film reaction district become anoxic condition, dissolved oxygen concentration is lower than 1.0mg/L, and forming anoxic microorganism is main micro-ecological environment; Add gas stripping type microkinetic reflux in film reaction district, make oxygen-starved area muddy water mixed solution be back to aerobic zone.
In this embodiment, membrane bioreactor has formed the fluidised form of aerobic zone-negative area-oxygen-starved area and return-flow system, can realize aerobic zone nitrated, inhale phosphorus and oxygen-starved area denitrification, release the biological process of phosphorus, gas stripping type microkinetic refluxes and has strengthened the treatment effect of denitrogenation dephosphorizing.Overcome that aerobic type membrane biological reactor process energy consumption is large, the defect of the large and poor denitrification and dephosphorization effect of excess sludge production; Overcome the poor and membrane module of facultative type membrane biological reactor process gasification phosphor-removing effect simultaneously and easily stopped up, work-ing life is short wait not enough.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. efficient low energy delays a film polluting device, it is characterized in that: it comprises reactor body (1), oxygen-starved area (2), aerobic zone (3), preliminary precipitation district (4), membrane biological reaction district (5) and air-lift device (6), one end of the inside of reactor body (1) is provided with oxygen-starved area (2), one side of oxygen-starved area (2) is provided with aerobic zone (3), one side of aerobic zone (3) is provided with preliminary precipitation district (4), one side in preliminary precipitation district (4) is provided with air-lift device (6), one side of air-lift device (6) is provided with membrane biological reaction district (5), the top of reactor body (1) is provided with water-in (7), water-in (7) is connected with pre-treatment pond (8), on air-lift device (6), be provided with the first refluxing opening (6-1), the second refluxing opening (6-2) and the 3rd refluxing opening (6-3), the first refluxing opening (6-1) and the second refluxing opening (6-2) are separately positioned on the bottom of membrane biological reaction district (5) and preliminary precipitation district (4), the 3rd refluxing opening (6-3) is arranged on the top of oxygen-starved area (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420169103.6U CN203754569U (en) | 2014-04-09 | 2014-04-09 | High-efficiency low-energy membrane pollution delay device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420169103.6U CN203754569U (en) | 2014-04-09 | 2014-04-09 | High-efficiency low-energy membrane pollution delay device |
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| CN203754569U true CN203754569U (en) | 2014-08-06 |
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| CN201420169103.6U Expired - Fee Related CN203754569U (en) | 2014-04-09 | 2014-04-09 | High-efficiency low-energy membrane pollution delay device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046432A (en) * | 2017-12-29 | 2018-05-18 | 天津齐康美环保科技有限公司 | A kind of low energy consumption is from reflow type membrane bioreactor |
-
2014
- 2014-04-09 CN CN201420169103.6U patent/CN203754569U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046432A (en) * | 2017-12-29 | 2018-05-18 | 天津齐康美环保科技有限公司 | A kind of low energy consumption is from reflow type membrane bioreactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Yuping Inventor before: Gao Yuping Inventor before: Jin Weizhong |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20160409 |