CN203999116U - The efficient of a kind of membrane bioreactor blocked up aerator without dirt - Google Patents
The efficient of a kind of membrane bioreactor blocked up aerator without dirt Download PDFInfo
- Publication number
- CN203999116U CN203999116U CN201420425362.0U CN201420425362U CN203999116U CN 203999116 U CN203999116 U CN 203999116U CN 201420425362 U CN201420425362 U CN 201420425362U CN 203999116 U CN203999116 U CN 203999116U
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- CN
- China
- Prior art keywords
- solarization air
- aeration tube
- aeration
- diaphragm
- air cap
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
What the utility model provided a kind of membrane bioreactor is efficient without dirty stifled aerator, and many aeration tubes are positioned under multiple diaphragms that one group of perpendicular separation arranges, perpendicular to diaphragm plane parallel equidistant from arrangement; The every symmetrical two row's solarization air caps that are provided with in aeration tube below, the center of circle of every row's solarization air cap is positioned on same axis, and the center of circle of two row's solarization air caps is in same level height; There is a horizontal baffle aeration tube below, contacts and be fixed together with set collar with aeration tube; The line of the center of circle of solarization air cap and the central axis of aeration tube is in vertical direction with 45 ° of angles; Distance between two solarization air caps and the cross section, adjacent solarization air cap place in same cross section equals the distance between adjacent diaphragms, and cross section, solarization air cap place overlaps with cross section, diaphragm place or is positioned at adjacent two diaphragm central authorities.The utility model adopts gas to be tilted to lower ejection and meets the aeration mode that baffle plate is turned back, and avoids sewage backflow to aeration tube, and makes bubble have very strong souring to film surface equably.
Description
Technical field
The invention belongs to membrane bioreactor aeration process field, particularly provide a kind of without dirty stifled aerator.
Background technology
China is shortage of water resources and the country that pollutes especially severe, for reducing the destruction of mankind's activity to water surrounding, utilizes more efficiently water resources, and various forms of advanced treatment of wastewater and middle water reuse project are implemented on a large scale and put into operation in recent years.Membrane bioreactor, has gathered the advantage of membrane sepn and two kinds of technology of biochemical degradation, and, the advantage such as effluent quality good, stable, convenient management little with its floor space is widely used in all kinds of engineering of water treatment, becomes environmentalist's sharp weapon.
Membrane bioreactor comprises four parts: separatory membrane part, aeration part, water part and wash section.Membrane sepn part generally adopts ultrafiltration or microfiltration membrane, there are two kinds of forms of tubular fibre curtain type membrane and flat sheet membrane, diaphragm is vertically fixed on the upper part of membrane module, and object is by suspended substance, colloid, microorganism and macromolecular rejection to organics, thereby purifies waste water; Aeration part is made up of aeration case, gas blower, aeration tube, aeration case be positioned at diaphragm under, gas blower is delivered to aeration tube by air with certain pressure, aeration opening by aeration tube sprays, the gas of ejection is in providing the aerobic gas of Institute of Micro-biology, scouring is washed away in film surface, and the dirt that minimizing pollutant sediment causes is stifled; The water part of membrane bioreactor, is all to adopt intermittent type negative pressure-pumping mode, by the rising pipe being connected with diaphragm, will be extracted out through water by suction pump; Wash section forms by cleaning medicine-chest, quantitative dosing pump and dosing pipeline, dirty stifled the acquiring a certain degree on film surface, when the pressure reduction that seeing through water needs exceedes design load, start wash procedure, soak to dosing in diaphragm, at medicine, the microbial thin film layer on film surface is realized after decomposition, then the gas exposing with aeration tube washes away film surface.
Aeration, to biochemical and filtration, all plays an important role.Biochemical aspect, the aerobic bacteria being rich in water body need to could be oxidized and decompose organism at the oxygen that constantly digestion is dissolved in the water, because the solubleness of oxygen in water is very little, so need to not stop, to aeration in water, increases the speed of dissolved oxygen by increasing the contact area of air and water.Filtration aspect, because the sludge concentration of sewage is higher, generally at 9000-15000mg/L, speed ratio in film surface attachment deposition is very fast, and bubble does not stop film surface to clean, and can reduce the speed that film is blocked up by dirt, reduce cleaning frequency, improve system works efficiency.
The diaphragm of membrane bioreactor occupies the larger area of plane, general aerating system, and easily aeration is inhomogeneous, makes the concentration polarization phenomenon on film surface comparatively obvious, thereby makes the comprehensive permeability rate of film low.
General aerator aeration hole is positioned at the top of aeration tube, or both sides, like this in the time that aerator stops aeration, water pollutant is with in sewage inflow pipe, and mud accumulates gradually, final blocking aeration pipeline, need manually pipeline to be cleared up, running maintenance is extremely inconvenient.
Even if there is solarization air cap to be positioned at aeration tube below on market, while ejection due to gas, there is certain speed, can move downward, because bottom sludge concentration is high, liquid viscosity coefficient is high, and after bubble touches the end, climbing speed reduces greatly, and the scrubbing action on film surface is also obviously reduced.
Summary of the invention
The purpose of this utility model is to provide the efficient without dirty stifled aerator of a kind of membrane bioreactor, adopt gas to be tilted to lower ejection and meet baffle plate aeration mode that turn back, balanced gas distribution, can make aeration face more balanced effectively, avoid sewage backflow to aeration tube, and ensure the souring that bubble is very strong to film surface, concrete scheme is as follows:
Many aeration tubes (1) are positioned under multiple diaphragms (6) of one group of perpendicular separation setting, perpendicular to the equidistant arrangement of diaphragm (6) plane parallel; The symmetrical two row's solarization air caps (2) that are provided with in every aeration tube (1) below, the center of circle of every row's solarization air cap (2) is positioned on same axis, and the center of circle of two row's solarization air caps (2) is in same level height; There is a horizontal baffle (3) aeration tube (1) below, contacts and use set collar (4) to be fixed together with aeration tube; The line of the central axis of the center of circle of solarization air cap (2) and aeration tube (1) is in vertical direction with 45 ° of angles; Distance between two solarization air caps (2) in same cross section and adjacent solarization air cap (2) cross section, place equals the distance between adjacent diaphragms (6), and solarization air cap (2) cross section, place overlaps with diaphragm (6) cross section, place or is positioned at adjacent two diaphragm central authorities.
The radical of aeration tube (1) is determined by the sheet number of diaphragm, and the horizontal plane covering after solarization air cap (2) the ejection gas rising of its below is overlapped with multiple diaphragms (6) place horizontal plane that one group of perpendicular separation arranges.
Brief description of the drawings
Fig. 1 be membrane bioreactor without the stifled aerator cross-sectional view of dirt.
Fig. 2 be membrane bioreactor without the stifled aerator two dimensional structure schematic diagram of dirt.
Fig. 3 is membrane bioreactor structural representation.
Wherein aeration tube (1), solarization air cap (2), baffle plate (3), set collar (4), inlet mouth (5), diaphragm (6).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further explained.
Pressurized air enters aerator and is delivered to aeration inlet mouth (5) by pipeline, enter the annular closed duct at aeration tube place, as shown in Figure 2, gas enters many aeration tubes (1) that are arranged in parallel, because in the pipeline of aeration tube in same loop line, so air pressure is identical everywhere;
As shown in Figure 1, on same aeration tube (1) two row's solarization air cap (2) is in same liquid level, and all aeration tubes (1) are positioned at same level, so it is also identical that each solarization air cap (2) is located hydraulic pressure, gas just can spray with identical speed outside pipe, in the time that gas hits baffle plate (3) with certain spouting velocity, spending knuckle direction with identical speed 90 sprays obliquely, avoid keeping higher translational speed through baffle plate high sludge concentration region, below, so still can there be stronger scrub effect in the time washing away diaphragm (6) surface.Meanwhile, when air impingement baffle plate, bubble breaking becomes some less bubbles, makes bubble distribution more even, also more even to the scouring on film surface.
The uniform layout of solarization air cap (2) under diaphragm (6), makes nearly all film surface all stand bubble and washes away scouring, effectively reduces the concentration polarization phenomenon on film surface, makes the service efficiency of film higher.
Claims (2)
1. the dirty stifled aerator of efficient nothing that membrane bioreactor is used, it is characterized in that: many aeration tubes (1) are positioned under multiple diaphragms (6) of one group of perpendicular separation setting, perpendicular to the equidistant arrangement of diaphragm (6) plane parallel; The symmetrical two row's solarization air caps (2) that are provided with in every aeration tube (1) below, the center of circle of every row's solarization air cap (2) is positioned on same axis, and the center of circle of two row's solarization air caps (2) is in same level height; There is a horizontal baffle (3) aeration tube (1) below, contacts and use set collar (4) to be fixed together with aeration tube; The line of the central axis of the center of circle of solarization air cap (2) and aeration tube (1) is in vertical direction with 45 ° of angles; Distance between two solarization air caps (2) in same cross section and adjacent solarization air cap (2) cross section, place equals the distance between adjacent diaphragms (6), and solarization air cap (2) cross section, place overlaps with diaphragm (6) cross section, place or is positioned at adjacent two diaphragm central authorities.
2. according to claim 1 efficient without dirty stifled aerator, it is characterized in that: the radical of aeration tube (1) is determined by the sheet number of diaphragm, and the horizontal plane covering after solarization air cap (2) the ejection gas rising of its below is overlapped with multiple diaphragms (6) place horizontal plane that one group of perpendicular separation arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425362.0U CN203999116U (en) | 2014-07-31 | 2014-07-31 | The efficient of a kind of membrane bioreactor blocked up aerator without dirt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425362.0U CN203999116U (en) | 2014-07-31 | 2014-07-31 | The efficient of a kind of membrane bioreactor blocked up aerator without dirt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203999116U true CN203999116U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420425362.0U Active CN203999116U (en) | 2014-07-31 | 2014-07-31 | The efficient of a kind of membrane bioreactor blocked up aerator without dirt |
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| CN (1) | CN203999116U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976979A (en) * | 2017-05-25 | 2017-07-25 | 清水源（上海）环保科技有限公司 | A kind of be placed in river course is used for the integration apparatus that river course is repaired |
| CN107651761A (en) * | 2017-10-24 | 2018-02-02 | 上海市政工程设计研究总院（集团）有限公司 | A kind of bottom air flue boring aeration pipe and its aeration method |
-
2014
- 2014-07-31 CN CN201420425362.0U patent/CN203999116U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976979A (en) * | 2017-05-25 | 2017-07-25 | 清水源（上海）环保科技有限公司 | A kind of be placed in river course is used for the integration apparatus that river course is repaired |
| CN107651761A (en) * | 2017-10-24 | 2018-02-02 | 上海市政工程设计研究总院（集团）有限公司 | A kind of bottom air flue boring aeration pipe and its aeration method |
| CN107651761B (en) * | 2017-10-24 | 2023-10-10 | 上海市政工程设计研究总院（集团）有限公司 | Bottom airway perforation aeration pipe and aeration method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |