CN106630129A - High-efficiency aeration system for MBR process membrane unit - Google Patents
High-efficiency aeration system for MBR process membrane unit Download PDFInfo
- Publication number
- CN106630129A CN106630129A CN201610746230.1A CN201610746230A CN106630129A CN 106630129 A CN106630129 A CN 106630129A CN 201610746230 A CN201610746230 A CN 201610746230A CN 106630129 A CN106630129 A CN 106630129A
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- China
- Prior art keywords
- aeration
- main
- branch pipe
- membrane
- pipe
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Classifications
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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
- 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
-
- 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
The invention discloses a high-efficiency aeration system for a MBR process membrane unit. According to the invention, a main aeration pipeline I and a main aeration pipeline II are separately provided with an electrically operated valve; two sides of each set of membrane rack are respectively provided with an air inlet I and an air inlet II; the main aeration pipeline I is connected with main aeration pipes I of the membrane racks via the air inlets I; the main aeration pipeline II is connected with main aeration pipes II of the membrane racks via the air inlets II; a plurality of branch aeration pipes are arranged to be perpendicular to two main aeration pipes of each set of membrane rack; the air inlets of any two adjacent branch aeration pipes are separately communicated with different main aeration pipes of each set of membrane rack, so staggered inflow of air is realized; the lower surface of each branch aeration pipe is uniformly provided with aeration holes; the lower surface of the tail end of each branch aeration pipe is provided with a sludge-discharging groove; and the total cross-sectional area of aeration holes in each branch aeration pipe is two times greater than the cross-sectional area of the sludge-discharging groove. Through integral designing of the main aeration pipelines and the membrane racks, intermittent aeration of a MBR membrane system is realized, aeration efficiency is improved, membrane contamination is delayed, and the chemical cleaning period of the membrane system is prolonged.
Description
Technical field
The present invention relates to technical field of sewage, is to be related to a kind of height for MBR technique film units more specifically
Efficiency aerating system.
Background technology
Traditional MBR technology is the gas purging process for adopting continuous aeration, typically can be according to the tolerance of every curtain film 3-5m3/h
It is designed.Due to aeration rate it is constant, bubble and water (flow) direction it is unchanged, cause air-blowing to sweep effect on driving birds is not good, or even aeration occur
Dead angle.Effect is swept in order to ensure that film group device obtains preferable air-blowing, then needs to be maintained using continuous atm number aeration（Connect
Nearly 5m3/h）, this method of operation causes the energy consumption of membranous system very high.
With the development of MBR technology, MBR air-blowings sweep increasing by the way of intermission aeration, improve aeration effect
Rate simultaneously reduces the aeration energy consumption of MBR.Current MBR intermission aeration technologies, are all the valves by opening and closing aeration main
Door is realizing.So the valve switch of intermission aeration frequently, typically requires that 1-2min needs to switch a pipeline, such valve mill
Damage larger, pipeline also often in the state of building the pressure, reduces the service life of equipment, so as to increased the operating cost in later stage
And maintenance work.
Traditional MBR film group device aerations, typically adopt boring aeration mode, aeration branch pipe to be used uniformly across the perforate of 3 ~ 6mm
Aperture.When air flows in aeration branch pipe, the difference due to prolonging the increase of journey drag losses and each solarization air cap blast makes
The tolerance difference for obtaining each solarization air cap in aeration branch pipe is very big, causes aeration uneven, eventually affects the stable fortune of film group device
OK.
It is another that, due to the presence of back pressure, after air blast is shut down, hot-air can be suppressed in aeration tube in aeration process,
Time one is grown, and the sludge in aeration aperture can be by heat drying, blocking aperture, and smooth or bubble is not uneven in turn result in aeration
Etc. phenomenon.It is therefore desirable to being directed to, film group device design is a kind of without blocking or to be capable of the aerator of effective spoil disposal.
Continuous aeration is inefficient, needs to ensure its effect by atm number aeration, may there is an aeration dead angle, energy consumption and
Aeration effect can not be taken into account；Traditional intermission aeration, valve transfer is frequent, and pipeline builds the pressure, and equipment failure rate is high；Boring aeration
Mode solarization air cap is easily blocked, and film group device local aeration can be caused uneven or even without aeration, film group device fluctuation of service；Perforation
The solarization air cap of aeration branch pipe adopts uniform pore, and due to prolonging the reason such as journey drag losses and blast change each solarization air cap tolerance is caused
Differ, aeration is uneven to affect film group device stable operation.
The content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, there is provided one kind is used for MBR works
The high efficiency aerating system of skill film unit.
A kind of high efficiency aerating system for MBR technique film units of the present invention, is achieved by following technical proposals,
Including aeration main pipe one, aeration main pipe two, at least two groups film framves, the aeration main one of film frame and aeration mains two and many
Individual aeration branch pipe, the aeration main pipe one and aeration main pipe two are respectively provided with motor-driven valve, and the both sides of every group of film frame set respectively
The aeration main one for putting air inlet one and air inlet two, the aeration main pipe one and film frame is connected by air inlet one, aeration
The aeration main two of main pipe two and film frame is connected by air inlet two；The plurality of aeration branch pipe perpendicular to every group of film frame two
Individual aeration main is arranged, the air inlet of the adjacent aeration branch pipe of any two respectively from the different aeration main UNICOMs of every group of film frame,
Realize the air inlet that interlocks；Each aeration branch pipe lower surface is uniformly arranged solarization air cap, and each aeration branch pipe tail end lower surface arranges spoil disposal
Groove, the solarization air cap perforate total cross-sectional area of each aeration branch pipe is more than 2 times of mud drainage slot cross-sectional area.
Described each aeration branch pipe solarization air cap open pore size is 3-6mm, and the number of openings is 12-20, and the mud drainage slot is high
Degree 2-5cm, mud drainage slot internal diameter is 10-15mm.
The aeration branch pipe solarization air cap number of aperture 15, the 5 solarization air caps a diameter of 5mm adjacent with aeration branch pipe inlet end
5,10 aeration bore dia 4mm of residue；The mud drainage slot internal diameter is 10mm, is highly 45mm.
Compared with prior art, the invention has the beneficial effects as follows：
A. by the global design to aeration main pipe and film frame, the intermittent aerating of MBR membranous systems is realized, improves aeration effect
Rate, has delayed the generation of fouling membrane, extends the cycle of membranous system Chemical cleaning.
B. the particular design of film frame and aeration branch pipe, it is ensured that while aeration effect, significantly reduce aeration valve transfer
Frequency（Ensure that 5-10min switches a pipeline）, it is to avoid the occurrence of pipeline builds the pressure, so as to ensure technique and equipment fortune
Capable stability.
C. mud drainage slot is set every aeration branch pipe end, solves the problems, such as sludge blockage solarization air cap, ensure that exposure
The uniformity and stability of gas system；The cross-sectional area and Design of length of mud drainage slot, need with the open pore size of aeration branch pipe and
Quantity matches, it is ensured that gas will not be escaped from mud drainage slot in normal course of operation, it is to avoid have influence on the aeration effect of membranous system.
(mud drainage slot is in aeration branch pipe end, but within whole film frame size).
D. the type of flow and the pressure loss according to gas in aeration branch pipe, devises in the diverse location of aeration branch pipe
Various sizes of aperture, fundamentally solves the problems, such as that an aeration is uneven, it is ensured that the aeration effect of system so that film group
Part is stable, extends cleaning frequency and the service life of film group device.
According to the aeration rate of every curtain film 3m3/h, MBR reactor sludge concentrations 6g/L, permeant flux is in 15L/（m2·h）,
Rest the operational mode of 2min using water 8min processed, MBR system be able to need not carry out any with stable operation 15-30 days, period
Water backwash and chemical agent are cleaned.
Description of the drawings
Fig. 1 is present system structure top view；
Fig. 2 is independent film frame structure top view；
Fig. 3 is aeration branch pipe side view；
Fig. 4 is aeration branch pipe bottom view.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As Figure 1-3, including aeration main pipe 1, aeration main pipe 22, at least two groups film framves 3, the aeration of film frame
Main 1 and aeration main 27 and multiple aeration branch pipes 8, the aeration main pipe 1 and aeration main pipe 22 set respectively
Motor-driven valve is put, the both sides of every group of film frame are respectively provided with the aeration of air inlet 1 and air inlet 24, aeration main pipe 1 and film frame
Main 1 is connected by air inlet 1, and the aeration main 27 of aeration main pipe 22 and film frame is connected by air inlet 24, institute
Two aeration mains that multiple aeration branch pipes 8 are stated perpendicular to every group of film frame are arranged, the air inlet of the adjacent aeration branch pipe of any two
Respectively with two aeration main UNICOMs of every group of film frame, the air inlet that interlocks is realized（Aeration branch pipe according to airintake direction it is different staggeredly according to
Secondary arrangement）；Each aeration branch pipe lower surface is uniformly arranged solarization air cap, and each aeration branch pipe tail end lower surface arranges mud drainage slot 9, often
The solarization air cap perforate total cross-sectional area of individual aeration branch pipe is more than 2 times of mud drainage slot cross-sectional area.
Described each aeration branch pipe solarization air cap open pore size is 3-6mm, and the number of openings is 12-20, and the mud drainage slot is high
Degree 2-5cm, mud drainage slot internal diameter is 10-15mm.
Specific embodiment：As shown in figure 4, aeration branch pipe solarization air cap number of aperture 15, adjacent with aeration branch pipe inlet end 5
5 of a diameter of 5mm of individual solarization air cap 10,10 diameter 4mm of solarization air cap 11 of residue；The mud drainage slot internal diameter is 10mm, is highly
45mm.For 50,000/day of Shanghai Jinshan trade effluent MBR engineerings；The ton day of zhuzhou,hunan municipal wastewater MBR engineerings 100,000；Adopt
With the technology of the present invention, more than 1 year, current MBR system operation is all more stable, and MBR system for the accumulative operation of two projects
Aeration energy consumption compares traditional aeration mode and reduces 15-30%, with good popularizing action and demonstration meaning.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of high efficiency aerating system for MBR technique film units, is characterized in that, including aeration main pipe one, aeration master
Main two, at least two groups film framves, the aeration main one and aeration main two of film frame and multiple aeration branch pipes, the aeration trunk
Pipe one and aeration main pipe two are respectively provided with motor-driven valve, and the both sides of every group of film frame are respectively provided with air inlet one and air inlet two, expose
The aeration main one of gas main pipe one and film frame is connected by air inlet one, the aeration main two-way of aeration main pipe two and film frame
Cross air inlet two to connect, the plurality of aeration branch pipe is arranged perpendicular to two aeration mains of every group of film frame, and any two is adjacent
The air inlet of aeration branch pipe respectively with two aeration main UNICOMs of every group of film frame, realize interlock air inlet；Under each aeration branch pipe
Surface is uniformly arranged solarization air cap, and each aeration branch pipe tail end lower surface arranges mud drainage slot, the solarization air cap perforate of each aeration branch pipe
Total cross-sectional area is more than 2 times of mud drainage slot cross-sectional area.
2. the high efficiency aerating system for MBR technique film units according to claim 1, is characterized in that, it is described each
Aeration branch pipe solarization air cap open pore size is 3-6mm, and the number of openings is 12-20, spoil disposal groove height 2-5cm, in mud drainage slot
Footpath is 10-15mm.
3. the high efficiency aerating system for MBR technique film units according to claim 1, is characterized in that, the aeration
Arm solarization air cap number of aperture 15, the 5 solarization air caps a diameter of 5mm adjacent with aeration branch pipe inlet end, remaining 10 solarization air caps
Diameter 4mm；The mud drainage slot internal diameter is 10mm, is highly 45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746230.1A CN106630129A (en) | 2016-08-29 | 2016-08-29 | High-efficiency aeration system for MBR process membrane unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746230.1A CN106630129A (en) | 2016-08-29 | 2016-08-29 | High-efficiency aeration system for MBR process membrane unit |
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| CN106630129A true CN106630129A (en) | 2017-05-10 |
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| CN201610746230.1A Pending CN106630129A (en) | 2016-08-29 | 2016-08-29 | High-efficiency aeration system for MBR process membrane unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265624A (en) * | 2017-08-22 | 2017-10-20 | 彭从文 | Aerobic biochemical wastewater treatment pond |
| CN107459132A (en) * | 2017-09-18 | 2017-12-12 | 苏州苏科环保科技有限公司 | One kind can interval bubble type MBR film devices |
| CN113845212A (en) * | 2021-10-18 | 2021-12-28 | 碧水源膜技术研究中心(北京)有限公司 | MBR (membrane bioreactor) integrated sewage purification device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0891303A1 (en) * | 1996-04-02 | 1999-01-20 | Degremont | Dual-flow filter for biological effluent purification |
| CN202322477U (en) * | 2011-11-30 | 2012-07-11 | 北京碧水源膜科技有限公司 | Aeration plate of membrane bioreactor |
| CN204588807U (en) * | 2015-04-27 | 2015-08-26 | 中石化宁波工程有限公司 | A kind of energy-saving membrane reactor device |
-
2016
- 2016-08-29 CN CN201610746230.1A patent/CN106630129A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0891303A1 (en) * | 1996-04-02 | 1999-01-20 | Degremont | Dual-flow filter for biological effluent purification |
| CN202322477U (en) * | 2011-11-30 | 2012-07-11 | 北京碧水源膜科技有限公司 | Aeration plate of membrane bioreactor |
| CN204588807U (en) * | 2015-04-27 | 2015-08-26 | 中石化宁波工程有限公司 | A kind of energy-saving membrane reactor device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265624A (en) * | 2017-08-22 | 2017-10-20 | 彭从文 | Aerobic biochemical wastewater treatment pond |
| CN107459132A (en) * | 2017-09-18 | 2017-12-12 | 苏州苏科环保科技有限公司 | One kind can interval bubble type MBR film devices |
| CN107459132B (en) * | 2017-09-18 | 2023-10-13 | 苏州苏科环保科技有限公司 | Intermittent bubbling type MBR membrane device |
| CN113845212A (en) * | 2021-10-18 | 2021-12-28 | 碧水源膜技术研究中心(北京)有限公司 | MBR (membrane bioreactor) integrated sewage purification device and method |
| CN113845212B (en) * | 2021-10-18 | 2024-01-19 | 碧水源膜技术研究中心(北京)有限公司 | MBR integrated sewage purification device and method |
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