CN112320932A - Hollow plate type ceramic membrane bioreactor and wastewater treatment method - Google Patents
Hollow plate type ceramic membrane bioreactor and wastewater treatment method Download PDFInfo
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- CN112320932A CN112320932A CN202011123590.9A CN202011123590A CN112320932A CN 112320932 A CN112320932 A CN 112320932A CN 202011123590 A CN202011123590 A CN 202011123590A CN 112320932 A CN112320932 A CN 112320932A
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- 239000012528 membrane Substances 0.000 title claims abstract description 173
- 239000000919 ceramic Substances 0.000 title claims abstract description 158
- 238000004065 wastewater treatment Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000007790 scraping Methods 0.000 claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 239000010865 sewage Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 238000005273 aeration Methods 0.000 claims description 48
- 239000002351 wastewater Substances 0.000 claims description 28
- 238000011001 backwashing Methods 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000010802 sludge Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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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
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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
- C02F3/20—Activated sludge processes using diffusers
- C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (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)
Abstract
The invention discloses a hollow plate-type ceramic membrane bioreactor and a wastewater treatment method, relates to the technical field of sewage treatment devices, and aims to solve the problem that the membrane module generally has a service life of about 5 years and needs to be replaced due to time, so that the use cost is high. One side in pottery membrane pond is provided with biochemical pond, and the opposite side in pottery membrane pond is provided with the control room, the inside equidistance in pottery membrane pond is provided with five ceramic membrane mechanisms, the inside of ceramic membrane mechanism is provided with the board-like ceramic membrane of cavity, the outside of ceramic membrane mechanism is provided with the cleaning brush frame, the both sides of the board-like ceramic membrane of cavity all are provided with the cleaning brush, and cleaning brush frame fixed connection, the inside lower extreme fixed mounting in pottery membrane pond has the mud motor fixing base of scraping, the fixed mud motor of scraping that is provided with in top of mud motor fixing base, the output of scraping the mud motor is provided with scrapes mud mechanism.
Description
Technical Field
The invention relates to the technical field of sewage treatment devices, in particular to a hollow plate-type ceramic membrane bioreactor and a wastewater treatment method.
Background
The membrane bioreactor is a novel state wastewater treatment system 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. Active sludge and macromolecular organic matters in water are intercepted mainly by utilizing membrane separation equipment.
The membrane component in the membrane bioreactor has high manufacturing cost, so that the investment of engineering is increased by about 30-50 percent compared with the conventional treatment method, the service life of the membrane component is about 5 years generally, and the membrane component needs to be replaced due to time, so that the use cost is higher, and therefore, a hollow plate type ceramic membrane bioreactor and a wastewater treatment method are urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a hollow plate-type ceramic membrane bioreactor, which aims to solve the problem that the membrane module provided by the background technology generally has a service life of about 5 years, needs to be replaced due to time, and causes higher use cost.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a board-like ceramic membrane bioreactor of cavity, includes the ceramic membrane pond, one side in ceramic membrane pond is provided with biochemical pond, and the opposite side in ceramic membrane pond is provided with the control room, the inside equidistance in ceramic membrane pond is provided with five ceramic membrane mechanisms, the inside of ceramic membrane mechanism is provided with the board-like ceramic membrane of cavity, the outside of ceramic membrane mechanism is provided with the cleaning brush frame, the both sides of the board-like ceramic membrane of cavity all are provided with the cleaning brush, and cleaning brush frame fixed connection, the inside lower extreme fixed mounting in ceramic membrane pond has scrapes mud motor fixing base, the fixed mud motor of scraping that is provided with in top of scraping mud motor fixing base, the output of scraping the mud motor is provided.
Preferably, one side of the biochemical pond is provided with a water inlet pipe, the lower part of the biochemical pond is hermetically connected with a sewage discharge pipe of the biochemical pond, and the lower part of the ceramic membrane pond is provided with a sewage discharge pipe of the ceramic membrane pond.
Preferably, the inside of control room is provided with suction pump and aeration fan, and the suction pump is located one side of aeration fan, aeration fan's output is provided with aeration pipe and anti-scavenge pipe respectively, and is provided with the switching-over valve between aeration pipe and the anti-scavenge pipe, the upper end of anti-scavenge pipe is provided with anti-scavenge pipe check valve, the inlet tube of suction pump is provided with total outlet pipe, and sealing connection between total outlet pipe and the anti-scavenge pipe.
Preferably, be provided with ceramic membrane mechanism framework in the ceramic membrane mechanism, and the cleaning brush frame is located the outside of ceramic membrane mechanism framework, the equal fixed mounting in both sides of ceramic membrane mechanism framework has the lead screw, and the lead screw is connected with the transmission of cleaning brush frame, the equal fixed mounting in both sides has the collector pipe around the ceramic membrane mechanism framework top, and is provided with the ceramic membrane outlet pipe between collector pipe and the total outlet pipe, be provided with the suction pipe between collector pipe and the board-like ceramic membrane of cavity.
Preferably, an aeration mechanism is fixedly arranged below the ceramic membrane mechanism, and the aeration mechanism is connected with an aeration air pipe in a sealing manner.
Preferably, the hollow plate-type ceramic membrane is sequentially provided with a plurality of hollow plate-type ceramic membranes, and the cleaning brush frame is attached to the hollow plate-type ceramic membranes.
Preferably, scrape the inner wall in mud mechanism and ceramic membrane pond and laminate mutually, scrape mud mechanism including scraping the mud seat and scraping the mud pole, and scrape the mud seat and scrape mud pole fixed connection, scrape the outside of mud seat suit at scraping mud motor output, and scrape the mud seat and pass through the key-type connection with scraping mud motor output, scrape the mud pole including scraping the mud hypotenuse, scrape the mud connecting rod and scrape the fixed limit of mud.
Preferably, scrape the mud connecting rod and pass through screw fixed connection with scraping the mud seat, it is provided with and scrapes the mud hypotenuse and scrapes the fixed limit of mud to scrape the one side that the mud connecting rod kept away from and scrapes the mud seat, and scrapes the mud hypotenuse and be located the one side of scraping the fixed limit of mud, the height of scraping the mud hypotenuse is increased gradually by keeping away from and scraping fixed limit side to the opposite side.
A wastewater treatment method of a hollow plate-type ceramic membrane bioreactor comprises the following steps:
step 1: when the biochemical sewage treatment device is used, wastewater flows into the biochemical pond through the water inlet pipe, flows into the biochemical pond, degrades COD in the wastewater by using microorganisms, and flows into the ceramic membrane pond when the water level of the wastewater is higher than the partition wall additionally arranged between the biochemical pond and the ceramic membrane pond through the treatment of the biochemical pond;
step 2: the waste water enters the ceramic membrane pool, at the moment, the aeration fan absorbs air in the control chamber and transmits the air to the aeration mechanism through the aeration air pipe, the air is discharged through the aeration mechanism, the aeration mechanism enables the waste water in the ceramic membrane pool to be in contact with the air for oxygenation, and due to stirring of the liquid, the transfer of oxygen in the air to the liquid is accelerated, and the contact of organic matters and microorganisms in the ceramic membrane pool with dissolved oxygen is enhanced;
and step 3: absorbing the wastewater into a water collecting pipe through a hollow plate-type ceramic membrane by suction of a water suction pump, collecting the wastewater into a main water outlet pipe through a ceramic membrane water outlet pipe, flowing into the water suction pump, and outputting the wastewater through pressure of the water suction pump;
and 4, step 4: when impurities in the wastewater are adsorbed on the surface of the hollow plate-type ceramic membrane, the screw rod can be started, the cleaning brush frame is driven to move upwards through the drive of the screw rod, so that the cleaning brush can clean the surface of the hollow plate-type ceramic membrane, impurities adsorbed on the surface of the hollow plate-type ceramic membrane are reduced, the water suction pump is closed, air absorbed by the aeration fan is injected into the backwashing pipe through the reversing valve between the aeration air pipe and the backwashing pipe, the air is injected into the hollow plate-type ceramic membrane through the main water outlet pipe and the ceramic membrane water outlet pipe, and the impurities sucked into the gap of the hollow plate-type ceramic membrane are blown out through the blowing setting;
and 5: when biochemical pond and ceramic membrane pond are cleared up to needs, open the valve on biochemical pond blow off pipe and the ceramic membrane pond blow off pipe, let the inside mud of biochemical pond discharge through biochemical pond blow off pipe, can open the mud scraping motor this moment, let the mud scraping mechanism begin to rotate through the drive of mud scraping motor to strike off the accumulational mud in ceramic membrane pond bottom, let it discharge through ceramic membrane pond blow off pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the membrane module generally has the service life of about 5 years, needs to be replaced due to expiration, and causes higher use cost, so the service life of the hollow plate-type ceramic membrane is prolonged, and the use cost of equipment can be reduced.
2. When sludge at the bottom of the ceramic membrane pool is removed, the sludge scraping mechanism is driven by the sludge scraping motor to scrape the sludge accumulated at the bottom of the ceramic membrane pool, so that the sludge removal is more convenient and faster, and meanwhile, after the sludge removal is complete, the influence of the sludge in the ceramic membrane pool on the water absorption speed of the hollow plate type ceramic membrane during sewage treatment can be reduced, and the probability of blocking the hollow plate type ceramic membrane is reduced.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic structural view of a ceramic membrane mechanism according to the present invention;
FIG. 3 is a sectional view taken along the line B-B of the present invention;
FIG. 4 is an enlarged view of a portion of the region C of the present invention;
FIG. 5 is a sectional view taken along the line A-A of the present invention;
fig. 6 is a schematic structural diagram of the mud scraping mechanism of the present invention.
In the figure: 1. a biochemical pool; 2. a ceramic membrane tank; 3. a control room; 4. a water inlet pipe; 5. a sewage discharge pipe of the biochemical pool; 6. a ceramic membrane mechanism; 7. a ceramic membrane water outlet pipe; 8. a water outlet pipe is arranged; 9. a mud scraping motor; 10. a mud scraping mechanism; 11. a ceramic membrane tank blow-off pipe; 12. a water pump; 13. an aeration fan; 14. an aeration air pipe; 15. back washing the tube; 16. a backwash tube check valve; 17. an aeration mechanism; 18. (ii) a A ceramic membrane mechanism frame body; 19. a lead screw; 20. a water collection pipe; 21. a suction pipe; 22. a hollow plate ceramic membrane; 23. cleaning a brush frame; 24. cleaning brushes; 25. a mud scraping motor fixing seat; 26. a mud scraping seat; 27. a mud scraping rod; 28. scraping a mud bevel edge; 29. a mud scraping connecting rod; 30. and scraping and fixing the edges.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, an embodiment of the present invention is shown: the utility model provides a cavity plate-type ceramic membrane bioreactor, including ceramic membrane pond 2, one side in ceramic membrane pond 2 is provided with biochemical pond 1, and the opposite side in ceramic membrane pond 2 is provided with control room 3, the inside equidistance in ceramic membrane pond 2 is provided with five ceramic membrane mechanisms 6, the inside of ceramic membrane mechanism 6 is provided with cavity plate-type ceramic membrane 22, the outside of ceramic membrane mechanism 6 is provided with cleaning brush frame 23, the both sides of cavity plate-type ceramic membrane 22 all are provided with cleaning brush 24, and cleaning brush 24 and cleaning brush frame 23 fixed connection, the inside lower extreme fixed mounting in ceramic membrane pond 2 has mud scraping motor fixing base 25, the fixed mud scraping motor 9 that is provided with in top of mud scraping motor fixing base 25, the output of mud scraping motor 9 is provided with mud scraping mechanism 10.
Further, one side of biochemical pond 1 is provided with inlet tube 4, and biochemical pond blow off pipe 5 is connected with in the below sealing of biochemical pond 1, and the below of ceramic membrane pond 2 is provided with ceramic membrane pond blow off pipe 11.
Further, a water suction pump 12 and an aeration fan 13 are arranged inside the control room 3, the water suction pump 12 is located on one side of the aeration fan 13, an aeration air pipe 14 and a backwashing pipe 15 are respectively arranged at the output end of the aeration fan 13, a reversing valve is arranged between the aeration air pipe 14 and the backwashing pipe 15, a backwashing pipe one-way valve 16 is arranged at the upper end of the backwashing pipe 15, a main water outlet pipe 8 is arranged on a water inlet pipe of the water suction pump 12, and the main water outlet pipe 8 is in sealing connection with the backwashing pipe 15.
Further, a ceramic membrane mechanism frame 18 is arranged on the ceramic membrane mechanism 6, the cleaning brush frame 23 is located outside the ceramic membrane mechanism frame 18, lead screws 19 are fixedly mounted on two sides of the ceramic membrane mechanism frame 18, the lead screws 19 are in transmission connection with the cleaning brush frame 23, water collecting pipes 20 are fixedly mounted on the front side and the rear side above the ceramic membrane mechanism frame 18, a ceramic membrane water outlet pipe 7 is arranged between the water collecting pipes 20 and the water main outlet pipe 8, and a water suction pipe 21 is arranged between the water collecting pipes 20 and the hollow plate-type ceramic membrane 22.
Further, an aeration mechanism 17 is fixedly arranged below the ceramic membrane mechanism 6, and the aeration mechanism 17 is hermetically connected with the aeration air pipe 14.
Further, a plurality of hollow plate-type ceramic membranes 22 are sequentially provided, and the cleaning brush frame 23 is attached to the hollow plate-type ceramic membranes 22.
Further, scrape the inner wall of mud mechanism 10 and ceramic membrane pond 2 and laminate mutually, scrape mud mechanism 10 including scraping mud seat 26 and scrape mud pole 27, and scrape mud seat 26 and scrape mud pole 27 fixed connection, scrape mud seat 26 suit and scrape the outside of mud motor 9 output, and scrape mud seat 26 and scrape the mud motor 9 output and pass through the key-type connection, scrape mud pole 27 including scraping mud hypotenuse 28, scrape mud connecting rod 29 and scrape mud fixed limit 30.
Further, scrape mud connecting rod 29 and scrape mud seat 26 and pass through screw fixed connection, scrape mud connecting rod 29 and keep away from one side of scraping mud seat 26 and be provided with and scrape mud hypotenuse 28 and scrape mud stationary dog 30, and scrape mud hypotenuse 28 and be located the one side of scraping mud stationary dog 30, the height of scraping mud hypotenuse 28 is by keeping away from and scrape mud stationary dog 30 one side and increase gradually to the opposite side.
A wastewater treatment method of a hollow plate-type ceramic membrane bioreactor comprises the following steps:
step 1: when the device is used, wastewater flows into the biochemical tank 1 through the water inlet pipe 4, flows into the biochemical tank 1 to degrade COD in the wastewater by using microorganisms, and flows into the ceramic membrane tank 2 when the water level of the wastewater is higher than a partition wall formed by the biochemical tank 1 and the ceramic membrane tank 2 after being treated by the biochemical tank 1;
step 2: the waste water enters the ceramic membrane pool 2, at the moment, the aeration fan 13 absorbs the air in the control room 3 and transmits the air to the aeration mechanism 17 through the aeration air pipe 14, the air is discharged through the aeration mechanism 17, the aeration mechanism 17 leads the waste water in the ceramic membrane pool 2 to be contacted with the air for oxygenation, and the oxygen in the air is accelerated to be transferred to the liquid due to stirring the liquid, so that the contact between organic matters and microorganisms in the ceramic membrane pool 2 and dissolved oxygen is enhanced;
and step 3: absorbing the wastewater into a water collecting pipe 20 through a hollow plate type ceramic membrane 22 by suction of a water suction pump 12, gathering the wastewater into a main water outlet pipe 8 through a ceramic membrane water outlet pipe 7, flowing into the water suction pump 12, and outputting the wastewater through the pressure of the water suction pump 12;
and 4, step 4: when impurities in the wastewater are adsorbed on the surface of the hollow plate-type ceramic membrane 22, the screw rod 19 can be started, the cleaning brush frame 23 is driven to move upwards through the screw rod 19, so that the cleaning brush 24 cleans the surface of the hollow plate-type ceramic membrane 22, impurities adsorbed on the surface of the hollow plate-type ceramic membrane 22 are reduced, the water suction pump 12 is closed, air absorbed by the aeration fan 13 is injected into the backwashing pipe 15 through a reversing valve between the aeration air pipe 14 and the backwashing pipe 15, the air is injected into the hollow plate-type ceramic membrane 22 through the main water outlet pipe 8 and the ceramic membrane water outlet pipe 7, and the impurities sucked into gaps of the hollow plate-type ceramic membrane 22 are blown out through the air blowing;
and 5: when biochemical pond 1 and ceramic membrane pond 2 are cleared up to needs, open the valve on biochemical pond blow off pipe 5 and the ceramic membrane pond blow off pipe 11, let 1 inside mud in biochemical pond discharge pipe 5 discharge through biochemical pond, can open at this moment and scrape mud motor 9, let through the drive of scraping mud motor 9 scrape mud mechanism 10 and begin to rotate to strike off 2 accumulational mud in bottom in ceramic membrane pond, let it discharge through ceramic membrane pond blow off pipe 11.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A hollow plate-type ceramic membrane bioreactor comprises a ceramic membrane pool (2), and is characterized in that: one side in ceramic membrane pond (2) is provided with biochemical pond (1), and the opposite side in ceramic membrane pond (2) is provided with control room (3), the inside equidistance in ceramic membrane pond (2) is provided with five ceramic membrane mechanisms (6), the inside of ceramic membrane mechanism (6) is provided with the board-like ceramic membrane of cavity (22), the outside of ceramic membrane mechanism (6) is provided with cleaning brush frame (23), the both sides of the board-like ceramic membrane of cavity (22) all are provided with cleaning brush (24), and cleaning brush (24) and cleaning brush frame (23) fixed connection, the inside lower extreme fixed mounting in ceramic membrane pond (2) has scrapes mud motor fixing base (25), the fixed mud motor (9) of scraping that is provided with in top of mud motor fixing base (25), the output of scraping mud motor (9) is provided with scrapes mud mechanism (10).
2. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: one side of biochemical pond (1) is provided with inlet tube (4), the below sealing connection of biochemical pond (1) has biochemical pond blow off pipe (5), the below of ceramic membrane pond (2) is provided with ceramic membrane pond blow off pipe (11).
3. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: the inside of control room (3) is provided with suction pump (12) and aeration fan (13), and suction pump (12) is located one side of aeration fan (13), the output of aeration fan (13) is provided with aeration pipe (14) and anti-scavenge pipe (15) respectively, and is provided with the switching-over valve between aeration pipe (14) and anti-scavenge pipe (15), the upper end of anti-scavenge pipe (15) is provided with anti-scavenge pipe check valve (16), the inlet tube of suction pump (12) is provided with total outlet pipe (8), and sealing connection between total outlet pipe (8) and anti-scavenge pipe (15).
4. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: be provided with ceramic membrane mechanism framework (18) on ceramic membrane mechanism (6), and clean brush frame (23) are located the outside of ceramic membrane mechanism framework (18), the equal fixed mounting in both sides of ceramic membrane mechanism framework (18) has lead screw (19), and lead screw (19) are connected with clean brush frame (23) transmission, the equal fixed mounting in both sides has collector pipe (20) around ceramic membrane mechanism framework (18) top, and is provided with ceramic membrane outlet pipe (7) between collector pipe (20) and total outlet pipe (8), be provided with between collector pipe (20) and the board-like ceramic membrane of cavity (22) and absorb water pipe (21).
5. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: an aeration mechanism (17) is fixedly arranged below the ceramic membrane mechanism (6), and the aeration mechanism (17) is hermetically connected with an aeration air pipe (14).
6. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: the hollow plate-type ceramic membrane (22) is sequentially provided with a plurality of cleaning brush frames (23) which are attached to the hollow plate-type ceramic membrane (22).
7. A hollow plate ceramic membrane bioreactor according to claim 1, wherein: scrape the inner wall of mud mechanism (10) and ceramic membrane pond (2) and laminate mutually, scrape mud mechanism (10) including scraping mud seat (26) and scraping mud pole (27), and scrape mud seat (26) and scrape mud pole (27) fixed connection, scrape the outside of mud motor (9) output of mud seat (26) suit, and scrape mud seat (26) and scrape mud motor (9) output and pass through the key-type connection, scrape mud pole (27) including scraping mud hypotenuse (28), scrape mud connecting rod (29) and scrape mud fixed limit (30).
8. A hollow plate ceramic membrane bioreactor according to claim 7, wherein: scrape mud connecting rod (29) and scrape mud seat (26) and pass through screw fixed connection, it is provided with and scrapes mud hypotenuse (28) and scrapes mud fixed limit (30) to scrape one side that mud connecting rod (29) kept away from and scrapes mud seat (26), and scrapes mud hypotenuse (28) and be located the one side of scraping mud fixed limit (30), the height of scraping mud hypotenuse (28) is increased to the opposite side by keeping away from and scraping mud fixed limit (30) one side gradually.
9. A method for treating wastewater based on a hollow plate-type ceramic membrane bioreactor according to any one of claims 1 to 8, comprising the steps of:
step 1: when the biochemical sewage treatment device is used, wastewater flows into the biochemical pond (1) through the water inlet pipe (4), flows into the biochemical pond (1) to degrade COD in the wastewater by using microorganisms, and flows into the ceramic membrane pond (2) when the water level of the wastewater is higher than the partition wall additionally arranged between the biochemical pond (1) and the ceramic membrane pond (2) through the treatment of the biochemical pond (1);
step 2: the waste water enters the ceramic membrane pool (2), at the moment, the aeration fan (13) absorbs the air in the control room (3) and transmits the air to the aeration mechanism (17) through the aeration air pipe (14), the air is discharged through the aeration mechanism (17), the aeration mechanism (17) leads the waste water in the ceramic membrane pool (2) to be in contact with the air for oxygenation, and the oxygen in the air is accelerated to be transferred to the liquid due to stirring of the liquid, so that the contact between organic matters and microorganisms in the ceramic membrane pool (2) and dissolved oxygen is enhanced;
and step 3: absorbing the wastewater into a water collecting pipe (20) through a hollow plate type ceramic membrane (22) by suction of a water suction pump (12), gathering the wastewater into a main water outlet pipe (8) through a ceramic membrane water outlet pipe (7), flowing into the water suction pump (12), and outputting the wastewater through the pressure of the water suction pump (12);
and 4, step 4: when impurities in the wastewater are adsorbed on the surface of the hollow plate-type ceramic membrane (22), the screw rod (19) can be started, the cleaning brush frame (23) is driven to move upwards through the screw rod (19), so that the cleaning brush (24) cleans the surface of the hollow plate-type ceramic membrane (22), impurities adsorbed on the surface of the hollow plate-type ceramic membrane (22) are reduced, the water suction pump (12) is closed, air absorbed by the aeration fan (13) is injected into the backwashing pipe (15) through a reversing valve between the aeration air pipe (14) and the backwashing pipe (15), so that the air is injected into the hollow plate-type ceramic membrane (22) through the main water outlet pipe (8) and the ceramic membrane water outlet pipe (7), and the impurities sucked into gaps of the hollow plate-type ceramic membrane (22) are blown out through the air blowing setting;
and 5: when needs clearance biochemical pond (1) and ceramic membrane pond (2), open the valve on biochemical pond blow off pipe (5) and the ceramic membrane pond blow off pipe (11), let biochemical pond (1) inside mud discharge through biochemical pond blow off pipe (5), can open at this moment and scrape mud motor (9), drive through scraping mud motor (9) lets scrape mud mechanism (10) and begin to rotate, thereby strike off accumulational mud in ceramic membrane pond (2) bottom, let it discharge through ceramic membrane pond blow off pipe (11).
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| CN202011123590.9A CN112320932A (en) | 2020-10-20 | 2020-10-20 | Hollow plate type ceramic membrane bioreactor and wastewater treatment method |
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| CN202011123590.9A CN112320932A (en) | 2020-10-20 | 2020-10-20 | Hollow plate type ceramic membrane bioreactor and wastewater treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115317986A (en) * | 2022-10-10 | 2022-11-11 | 佛山市绿田环保机械设备有限公司 | Automatic back flush sewage treatment device and control system thereof |
| CN119797680A (en) * | 2024-09-03 | 2025-04-11 | 北京中电加美环保科技有限公司 | Ceramic membrane bioreactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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