CN114560555A - Sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked - Google Patents
Sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked Download PDFInfo
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- CN114560555A CN114560555A CN202210327481.1A CN202210327481A CN114560555A CN 114560555 A CN114560555 A CN 114560555A CN 202210327481 A CN202210327481 A CN 202210327481A CN 114560555 A CN114560555 A CN 114560555A
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- 239000012528 membrane Substances 0.000 title claims abstract description 140
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims description 36
- 239000000835 fiber Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/20—By influencing the flow
- B01D2321/2033—By influencing the flow dynamically
- B01D2321/2058—By influencing the flow dynamically by vibration of the membrane, e.g. with an actuator
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a sewage treatment device and method for preventing MBR (membrane bioreactor) membrane blockage, which comprises an MBR membrane module and a frame, wherein the MBR membrane module comprises a water collecting pipe and a plurality of membrane tows; the membrane silk bundle comprises membrane silk and a corrugated connecting pipe, and the upper end and the lower end of the membrane silk are connected to the water collecting pipe through the corrugated connecting pipe; the traction mechanism is arranged on the rack and comprises a plurality of guide rings, traction ropes, traction sleeves and traction cylinders, wherein the guide rings are distributed annularly and fixed on the rack; the traction sleeve is fixed on the traction cylinder, and a plurality of traction ropes are fixed on the traction sleeve; the upper end of the membrane wire is provided with a connecting sleeve, and the traction rope passes through the guide ring and is fixed on the connecting sleeve. The invention utilizes the traction mechanism to drive the membrane wires to shake, so that sludge attached to the surfaces of the membrane wires is thrown away, and the membrane wires are prevented from being blocked; the upper end and the lower end of the membrane wire are provided with the corrugated connecting pipes, so that the membrane wire can shake conveniently and cannot be pulled apart.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked.
Background
The sewage treatment refers to a process of purifying the output water after the sewage treatment to meet the water quality requirement of reuse, wherein, the MBR water treatment process is one of the most common modes, and is a novel state wastewater treatment process organically combining a membrane separation technology and a biological treatment technology. The membrane component replaces a secondary sedimentation tank at the tail end of the traditional biological treatment technology, the concentration of the high-activity sludge is kept in a bioreactor, the organic load of biological treatment is improved, the occupied area of a sewage treatment facility is reduced, and the excess sludge amount is reduced by keeping low sludge load. Mainly utilizes the membrane separation equipment immersed in the aerobic biological tank to trap the activated sludge and macromolecular organic matters in the tank.
MBR membrane separation generally aims at high-pollution sewage containing more organic matters and inorganic matters. Although the sewage is pretreated to a certain degree, after long-term operation, reaction residues such as sediments and fibers are still attached to the surface of the membrane, so that the surface of the membrane is blocked, and the membrane is blocked due to excessive attachments, so that the filtration efficiency is gradually reduced, frequent cleaning and maintenance are needed, and the method is troublesome and labor-consuming.
Disclosure of Invention
In order to solve the problems, the invention provides a sewage treatment device and a sewage treatment method which can prevent membrane filaments from being blocked and prolong the service life of an MBR membrane.
Therefore, the first technical scheme of the invention is as follows: a sewage treatment device for preventing MBR membrane blockage comprises an MBR membrane module and a frame, wherein the MBR membrane module comprises a water collecting pipe and a plurality of membrane tows, the water collecting pipe is fixed on the frame and is of an annular structure, and the membrane tows are uniformly arranged on the water collecting pipe; the membrane silk bundle comprises membrane silk and a corrugated connecting pipe, the upper end of the membrane silk is connected to the upper water collecting pipe through a first corrugated connecting pipe, and the lower end of the membrane silk is connected to the lower water collecting pipe through a second corrugated connecting pipe; the traction mechanism is arranged on the rack and comprises a plurality of guide rings, a traction rope, a traction sleeve and a traction cylinder, and the guide rings are distributed annularly and fixed on the rack; the traction sleeve is fixed on the traction cylinder, and a plurality of traction ropes are fixed on the traction sleeve; and a connecting sleeve is arranged at the intersection of the membrane wire and the first corrugated connecting pipe, and the traction rope passes through the guide ring and is fixed on the connecting sleeve.
According to the invention, the film wire is provided with the traction rope, the traction cylinder can pull the traction rope through the traction sleeve, so that the traction rope can drive the film wire to move inwards, the two ends of the film wire are provided with the corrugated connecting pipes, when the film wire is pulled by the traction rope, the corrugated connecting pipes on the two sides can ensure that the film wire cannot be broken, the film wire can shake back under the action of the traction rope, sludge attached to the surface of the film wire is thrown away, and the film wire is prevented from being blocked.
Preferably, the traction sleeve and the water collecting pipe are coaxially arranged, a plurality of traction ropes are uniformly fixed on the circumferential surface of the traction sleeve, a pull ring is arranged on the connecting sleeve, and the traction ropes are fixed on the pull ring through hooks. The drawing sleeve and the water collecting pipe are coaxially arranged, namely the distance between the drawing sleeve and all the membrane filament bundles is consistent, the amplitude of the drawing membrane filaments is consistent, and all the membrane filaments are guaranteed to be stressed and shaken.
Preferably, all the pulling ropes are consistent in length, the guide rings and the pulling rings on the connecting sleeves are at the same height, and the pulling ropes are in a zigzag shape. The guide ring can change the tractive direction of tractive rope, and the guide ring is in same height with the pull ring, can drive the ascending removal of connecting sleeve vertical side with the tractive cylinder, converts the removal of the horizontal direction that the diaphragm silk was pulled to the inboard into, guarantees the diaphragm silk horizontal shake, can not pulled apart.
Preferably, the drawing cylinder is vertically arranged on the frame and is positioned on the axis of the water collecting pipe; the cylinder rod of the traction cylinder drives the traction sleeve to reciprocate up and down. The amplitude of the up-and-down motion of the cylinder rod of the drawing cylinder is controllable, and the membrane wire is guaranteed to shake under the condition that the membrane wire is not broken by drawing.
Preferably, be equipped with many membrane silks on the membrane silk bundle, the open end department of membrane silk both sides is equipped with the end cover, and the end cover is fixed inside the ripple connecting pipe, be equipped with a plurality of interfaces on the collector pipe, the kneck at the collector pipe is fixed to the ripple connecting pipe, membrane silk and the inside intercommunication of collector pipe. A plurality of membrane yarns form a cylindrical membrane tow, the filtration area is increased, and two ends of each membrane yarn are sealed in end covers by glue to prevent the membrane yarns from loosening; the open end of membrane silk is linked together through corrugated connection pipe and collector pipe, and the water after the membrane silk filters can assemble in the collector pipe, and outside water tank is connected to the rethread collector pipe.
Preferably, the bottom of the MBR membrane module is provided with a first annular aeration pipe and a second annular aeration pipe, and the first aeration pipe and the second aeration pipe are positioned on the inner side and the outer side of the lower water collecting pipe and are coaxially arranged; and the first aeration pipe and the second aeration pipe are provided with air holes, and the air holes face the membrane filaments. Because the pulling rope is fixed at the top end of the membrane yarn, the shaking amplitude of the top end of the membrane yarn is larger than that of the bottom end of the membrane yarn, and therefore the aeration pipe is additionally arranged at the bottom end of the membrane yarn to prevent the bottom end of the membrane yarn from being blocked.
The second technical scheme of the invention is as follows: a sewage treatment method for preventing MBR membrane from being blocked comprises the steps of placing the sewage treatment device into a sewage tank, wherein sewage is positioned outside membrane wires, and filtered water flows into a corrugated connecting pipe through the opening ends of the membrane wires and then is gathered in a water collecting pipe; meanwhile, the traction cylinder is ventilated at regular time, the cylinder rod drives the traction sleeve to do up-and-down reciprocating motion after ventilation, and the traction sleeve drives the membrane wire to horizontally shake through the traction rope to shake off the sediment attached to the surface of the membrane wire.
Preferably, a first aeration pipe and a second aeration pipe arranged at the bottom of the MBR membrane module are connected with an air pump, the air pump works, and the first aeration pipe and the second aeration pipe are used for aeration.
Compared with the prior art, the invention has the beneficial effects that: the drawing mechanism is used for driving the membrane wires to shake, so that sludge attached to the surfaces of the membrane wires is thrown off, and the membrane wires are prevented from being blocked; the corrugated connecting pipes are arranged at the upper end and the lower end of the membrane wire, so that the membrane wire can be shaken conveniently and cannot be pulled apart; all membrane filaments are stressed uniformly, and the shaking amplitudes of all membrane filaments are consistent.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
FIG. 1 is a structural cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at point A;
FIG. 3 is a partial enlarged view of point B of FIG. 1;
FIG. 4 is a top view of the structure of the present invention;
FIG. 5 is a structural side view of an MBR membrane module.
Labeled as: the membrane bioreactor comprises a frame 1, a mounting frame 11, an MBR membrane module 2, a water collecting pipe 21, an upper water collecting pipe 211, a lower water collecting pipe 212, a connector 213, membrane wires 22, a first corrugated connecting pipe 23, a second corrugated connecting pipe 24, an end cover 25, a connecting sleeve 26, a pull ring 27, a pulling mechanism 3, a guide ring 31, a pulling rope 32, a pulling sleeve 33, a pulling cylinder 34, a mounting ring 35, a first aeration pipe 41, a second aeration pipe 42 and an air hole 43.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.
See the drawings. This embodiment a prevent sewage treatment plant of MBR membrane jam, including MBR membrane module 2 and frame 1, MBR membrane module 2 includes collector pipe 21 and a plurality of membrane silk bundle, and collector pipe 21 is the loop configuration, divide into collector pipe 211 and lower collector pipe 212, and last collector pipe 211 and lower collector pipe 212 are all installed in frame 1, all are equipped with a plurality of evenly distributed's interface 213 on last collector pipe 211, the lower collector pipe 212, and membrane silk bundle both ends distribute and install on the interface of last collector pipe, lower collector pipe. The water collecting pipe is also communicated with an external water pipe and can be communicated with a clean water tank, and the filtered water is discharged into the clean water tank.
The membrane tows are uniformly arranged on the water collecting pipe, and all the membrane tows are distributed in a circular ring shape; the membrane tow comprises a plurality of membrane filaments 22, a first corrugated connecting pipe 23 and a second corrugated connecting pipe 24; a plurality of membrane filaments 22 form a cylindrical membrane filament bundle, and two ends of the membrane filaments are sealed in the end cover 25 by glue to prevent the membrane filaments from loosening; the end covers 25 on two sides of the membrane wire are respectively fixed inside the first corrugated connecting pipe 23 and the second corrugated connecting pipe 24, the open end of the bottom of the membrane wire 22 is communicated with the lower water collecting pipe 212 through the second corrugated connecting pipe 24, and the open end of the top of the membrane wire 22 is communicated with the upper water collecting pipe 211 through the first corrugated connecting pipe 23. The intersection of the membrane wire 22 and the first corrugated connecting pipe 23 is provided with a connecting sleeve 26, and the connecting sleeve is provided with a pull ring 27. The first corrugated connecting pipe can be longer than the second corrugated connecting pipe, and the shaking amplitude of the membrane wires is increased.
The frame 1 is also provided with a traction mechanism 3, and the traction mechanism 3 comprises a plurality of guide rings 31, a traction rope 32, a traction sleeve 33 and a traction cylinder 34; the frame 1 extends into a mounting frame 11 towards the center of the water collecting pipe, a drawing cylinder 34 is fixed on the mounting frame 11, a cylinder rod of the drawing cylinder 34 is coaxially arranged with the water collecting pipe, a drawing sleeve 33 is fixed on the cylinder rod of the drawing cylinder 34, a circle of uniformly distributed mounting rings 35 are arranged at the bottom of the drawing sleeve 33, and a drawing rope is fixed in each mounting ring; the guide rings are arranged in a circle and fixed below the mounting frame, and the circle formed by the guide rings 31 is coaxial with the water collecting pipe; the guide ring 31 and the pull ring 27 on the connecting sleeve 26 are located at the same height, the other end of the pulling rope 32 penetrates through the guide ring 31 and is fixed on the pull ring 27, and the two ends of the pulling rope 32 can be fixed on the mounting ring 35 and the pull ring 27 through hooks, so that the installation and the disassembly are convenient. The cylinder rod of the traction cylinder drives the traction sleeve to reciprocate up and down. The amplitude of the up-and-down motion of the cylinder rod of the drawing cylinder is controllable, and the membrane wire is guaranteed to shake under the condition that the membrane wire is not broken by drawing.
The drawing sleeve and the water collecting pipe are coaxially arranged, namely the distance between the drawing sleeve and all the membrane filament bundles is consistent, the amplitude of the drawing membrane filaments is consistent, and all the membrane filaments are guaranteed to be stressed and shaken. All the pulling ropes are consistent in length, the guide rings and the pulling rings on the connecting sleeves are at the same height, and the pulling ropes are in a zigzag shape. The guide ring can change the tractive direction of tractive rope, and the guide ring is in same height with the pull ring, can drive the ascending removal of connecting sleeve vertical side with the tractive cylinder, converts the removal of the horizontal direction that the diaphragm silk was pulled to the inboard into, guarantees the diaphragm silk horizontal shake, can not pulled apart.
The bottom of the MBR membrane module 2 is provided with a first aeration pipe 41 and a second aeration pipe 42 which are in annular structures, the first aeration pipe and the second aeration pipe are connected with an air pump, and the first aeration pipe and the second aeration pipe are positioned on the inner side and the outer side of the lower water collecting pipe 212 and are coaxially arranged; the first aeration pipe 41 and the second aeration pipe 42 are provided with air holes 43 facing the membrane filaments. Because the pulling rope is fixed at the top end of the membrane yarn, the shaking amplitude of the top end of the membrane yarn is larger than that of the bottom end of the membrane yarn, and therefore the aeration pipe is additionally arranged at the bottom end of the membrane yarn to prevent the bottom end of the membrane yarn from being blocked.
When in use, the sewage treatment device is placed in a sewage tank, sewage is positioned outside the membrane wires 22, and filtered water flows into the corrugated connecting pipe through the opening ends of the membrane wires and then is gathered in the water collecting pipe; meanwhile, the drawing cylinder 34 is ventilated at regular time, the cylinder rod drives the drawing sleeve 33 to reciprocate up and down after ventilation, the drawing sleeve 33 drives the membrane wire 22 to shake horizontally through the drawing rope 32, and precipitates attached to the surface of the membrane wire 22 are shaken off; at the same time, the air pump starts to work, and the first aeration pipe 41 and the second aeration pipe 42 start to explode.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a prevent sewage treatment plant of MBR membrane jam, includes MBR membrane module and frame, its characterized in that: the MBR membrane assembly comprises a water collecting pipe and a plurality of membrane tows, the water collecting pipe is fixed on the frame and is of an annular structure, and the membrane tows are uniformly arranged on the water collecting pipe; the membrane silk bundle comprises membrane silk and a corrugated connecting pipe, the upper end of the membrane silk is connected to the upper water collecting pipe through a first corrugated connecting pipe, and the lower end of the membrane silk is connected to the lower water collecting pipe through a second corrugated connecting pipe; the traction mechanism is arranged on the rack and comprises a plurality of guide rings, a traction rope, a traction sleeve and a traction cylinder, and the guide rings are distributed annularly and fixed on the rack; the traction sleeve is fixed on the traction cylinder, and a plurality of traction ropes are fixed on the traction sleeve; and a connecting sleeve is arranged at the intersection of the membrane wire and the first corrugated connecting pipe, and the traction rope passes through the guide ring and is fixed on the connecting sleeve.
2. The MBR membrane blockage preventing sewage treatment device of claim 1, wherein: the traction sleeve and the water collecting pipe are coaxially arranged, a plurality of traction ropes are uniformly fixed on the circumferential surface of the traction sleeve, a pull ring is arranged on the connecting sleeve, and the traction ropes are fixed on the pull ring through hooks.
3. The sewage treatment plant of claim 2, wherein the MBR membrane blockage prevention device is characterized in that: all the pulling ropes are consistent in length, the guide rings and the pulling rings on the connecting sleeves are located at the same height, and the pulling ropes are in a zigzag shape.
4. The MBR membrane blockage preventing sewage treatment device of claim 1, wherein: the drawing cylinder is vertically arranged on the rack and is positioned on the axis of the water collecting pipe; the cylinder rod of the traction cylinder drives the traction sleeve to reciprocate up and down.
5. The MBR membrane blockage preventing sewage treatment device of claim 1, wherein: the membrane fiber bundle is provided with a plurality of membrane fibers, end covers are arranged at the opening ends of two sides of the membrane fibers and fixed inside the corrugated connecting pipe, a plurality of interfaces are arranged on the water collecting pipe, the corrugated connecting pipe is fixed at the interface of the water collecting pipe, and the membrane fibers are communicated with the inside of the water collecting pipe.
6. The MBR membrane blockage preventing sewage treatment device of claim 1, wherein: the bottom of the MBR membrane component is provided with a first annular aeration pipe and a second annular aeration pipe, and the first aeration pipe and the second aeration pipe are positioned on the inner side and the outer side of the lower water collecting pipe and are coaxially arranged; and the first aeration pipe and the second aeration pipe are provided with air holes, and the air holes face the membrane filaments.
7. A sewage treatment method for preventing MBR membrane from being blocked is characterized in that: placing the sewage treatment device of any one of claims 1 to 6 into a sewage tank, wherein the sewage is positioned outside the membrane wires, and the filtered water flows into the corrugated connecting pipe through the opening ends of the membrane wires and then is gathered in the water collecting pipe; meanwhile, the traction cylinder is ventilated at regular time, the cylinder rod drives the traction sleeve to do up-and-down reciprocating motion after ventilation, and the traction sleeve drives the membrane wire to horizontally shake through the traction rope to shake off the sediment attached to the surface of the membrane wire.
8. The MBR membrane blockage preventing sewage treatment method of claim 7, wherein: the first aeration pipe and the second aeration pipe arranged at the bottom of the MBR membrane component are connected with an air pump, the air pump works, and the first aeration pipe and the second aeration pipe are used for aeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327481.1A CN114560555A (en) | 2022-03-30 | 2022-03-30 | Sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327481.1A CN114560555A (en) | 2022-03-30 | 2022-03-30 | Sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked |
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| CN114560555A true CN114560555A (en) | 2022-05-31 |
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| CN202210327481.1A Pending CN114560555A (en) | 2022-03-30 | 2022-03-30 | Sewage treatment device and method for preventing MBR (membrane bioreactor) membrane from being blocked |
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