CN220618636U - MBR membrane integrated sewage treatment device - Google Patents
MBR membrane integrated sewage treatment device Download PDFInfo
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- CN220618636U CN220618636U CN202322221425.2U CN202322221425U CN220618636U CN 220618636 U CN220618636 U CN 220618636U CN 202322221425 U CN202322221425 U CN 202322221425U CN 220618636 U CN220618636 U CN 220618636U
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- Prior art keywords
- tank
- mbr
- mbr membrane
- sewage treatment
- membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 71
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000020477 pH reduction Effects 0.000 claims abstract description 26
- 230000007062 hydrolysis Effects 0.000 claims abstract description 19
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000008213 purified water Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 7
- 230000001546 nitrifying effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of sewage treatment equipment, in particular to an MBR membrane integrated sewage treatment device which comprises a hydrolytic acidification tank, an anaerobic tank, an anoxic tank, an aerobic tank, an MBR treatment unit and an MBR water producing tank which are sequentially communicated; the MBR unit comprises a first MBR membrane tank and a second MBR membrane tank which are parallel in parallel, a first control valve and a second control valve are arranged on the overflow pipe, and the first MBR membrane tank and the second MBR membrane tank respectively and independently run or run simultaneously. According to the utility model, the hydrolysis acidification tank, the A20 tank, the MBR unit and the MBR water producing tank are arranged to be combined into the sewage treatment device, the biodegradability of the wastewater can be provided through the hydrolysis acidification tank, ammonia nitrogen and organic matters in the wastewater are removed through the A20 process, and further COD (chemical oxygen demand) and nitrifying ammonia nitrogen are continuously degraded through the MBR unit, so that indexes such as ammonia nitrogen, total nitrogen, BOD (biological oxygen demand) and the like are ensured to reach target requirements.
Description
Technical Field
The utility model relates to the technical field of sewage treatment equipment, in particular to an MBR membrane integrated sewage treatment device.
Background
With the rising of various industries in China, the types of wastewater are more and more, and when a sewage treatment plant is used for treating diversified wastewater, the traditional biochemical system can not meet the wastewater treatment requirement of the high-end industry.
The existing common sewage treatment process adopts an A2O+secondary sedimentation tank process, and is usually a multi-stage sewage treatment mode, comprising an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank. However, when the conventional sewage treatment process adopts an anaerobic tank-anoxic tank-aerobic tank or an anoxic tank-aerobic tank to treat wastewater difficult to biochemically, the removal efficiency of the treated water body such as COD, ammonia nitrogen and total nitrogen is low, and the expected removal requirement cannot be met. Moreover, the conventional MBR tank is usually designed as a single tank, and can only stop production when chemical cleaning is applied; and the hollow fiber membrane is adopted conventionally, membrane wires are easy to break, dirt is easy to block, operation and maintenance are complex, reliability is poor, and performance is unstable.
Therefore, the utility model provides an MBR membrane integrated sewage treatment device, which aims to solve the problems in the prior art.
Disclosure of Invention
The utility model aims at: the MBR membrane integrated sewage treatment device is used for solving the problems that the treatment is incomplete and the wastewater removal efficiency cannot meet the expected requirement when the conventional A2O+ secondary sedimentation tank process treatment is difficult to treat the biochemical wastewater in the prior art.
The technical scheme of the utility model is as follows: an MBR membrane integrated sewage treatment device comprises an MBR unit, an MBR water producing tank, and an integrated hydrolysis acidification tank, an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially communicated; the sewage is input into the hydrolysis acidification tank through a water inlet pipeline, the aerobic tank is communicated with the MBR unit through an overflow pipeline, and the MBR unit is communicated with the MBR water producing tank through an MBR water producing pump pipeline;
the MBR unit comprises a first MBR membrane tank and a second MBR membrane tank which are parallel to each other, a first control valve and a second control valve are arranged on the overflow pipe, and the first MBR membrane tank and the second MBR membrane tank respectively and independently run or run simultaneously.
Preferably, the water purified in the first and second MBR membrane tanks is pumped to the MBR water producing tank by the MBR water producing pump pipeline, and the mixed liquid in the first and second MBR membrane tanks flows back to the hydrolytic acidification tank and the anoxic tank by the MBR return pump pipeline.
Preferably, the hydrolysis acidification tank, the anaerobic tank and the anoxic tank are all internally provided with a submersible mixer.
Preferably, the MBR membrane of the MBR membrane tank is set to be a ceramic flat membrane.
Preferably, an aerobic blower is connected to the aerobic tank, and a microporous aerator is arranged in the aerobic tank to maintain the concentration of dissolved oxygen in the tank at 2-4 milligrams per liter.
Preferably, biological fillers are respectively arranged in the hydrolysis acidification tank, the anaerobic tank, the anoxic tank and the aerobic tank.
Compared with the prior art, the utility model has the advantages that:
(1) According to the utility model, the hydrolysis acidification tank, the A20 tank, the MBR unit and the MBR water producing tank are arranged to be combined into the sewage treatment device, so that the biodegradability of the wastewater can be provided by the hydrolysis acidification tank in terms of technology, and ammonia nitrogen and organic matters in the wastewater are removed by the A20 technology, so that the indexes of ammonia nitrogen, total nitrogen, BOD and the like are ensured to reach target requirements.
(2) Compared with the traditional A2O process, the hydrolysis acidification tank is added at the front end, and can intercept and gradually convert non-dissolved organic matters in the wastewater into dissolved organic matters, and some macromolecular substances which are difficult to biodegrade are converted into small molecular substances which are easy to degrade, such as organic acids, so that the biodegradability and degradation speed of the wastewater are greatly improved, the subsequent aerobic biological treatment is facilitated, and the diversity and complexity of various wastewater can be dealt with.
(3) Compared with the conventional process, the MBR unit is added at the rear end, and the MBR unit adopts two groups of independent membrane tanks and can also independently operate, so that the conditions that the production is influenced by a chemical cleaning process caused by single-group arrangement are avoided; chemical cleaning in the MBR tank can be realized, a cleaning tank is not required to be arranged, and the operation and the management are easier; and moreover, the MBR membrane adopts a ceramic flat membrane, and the ceramic flat membrane has the characteristics of larger flux and better flushing resistance effect, and can greatly improve the purification efficiency of sewage.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples:
FIG. 1 is an overall schematic diagram of an MBR membrane integrated sewage treatment device according to the present utility model;
wherein: 1. a hydrolytic acidification tank; 2. an anaerobic tank; 3. an anoxic tank; 4. an aerobic tank; 5. a first MBR membrane tank; 6. a second MBR membrane tank; 7. an MBR water producing tank; 8. a biological filler; 9. a water outlet pipe; 10. a first control valve; 11. a second control valve;
12. an aerobic blower; 13. an MBR blower; 14. MBR produces the water pump line; 15. MBR backwashing pump; 16. an MBR reflux pump pipeline; 17. a submersible mixer; 18. a microporous aerator; 19. a water inlet pipeline; 20. and an overflow pipeline.
Detailed Description
The following describes the present utility model in further detail with reference to specific examples:
as shown in fig. 1, an MBR membrane integrated sewage treatment device comprises three modules, namely an MBR unit, an MBR water producing tank 7 and an integrated front sewage treatment mechanism. The front sewage treatment mechanism comprises a hydrolysis acidification tank 1, an anaerobic tank 2, an anoxic tank 3 and an aerobic tank 4 which are sequentially communicated, wherein the hydrolysis acidification tank 1, the anaerobic tank 2, the anoxic tank 3 and the aerobic tank 4 are separated by a separation plate;
wherein, sewage is input into a hydrolysis acidification tank through a water inlet pipeline 19, the aerobic tank 4 is communicated with an MBR unit through an overflow pipeline 20, and the first MBR membrane tank and the second MBR membrane tank are communicated with an MBR water producing tank 7 through an MBR water producing pump pipeline 14; the MBR water producing tank 7 discharges the purified water body through the water outlet pipe 9.
The hydrolysis acidification tank 1 is arranged in front of the A2O sewage treatment tank (the anaerobic tank 2, the anoxic tank 3 and the aerobic tank 4), the biodegradability of the wastewater is provided by the hydrolysis acidification tank 1, and conditions are provided for the subsequent A20 sewage treatment tank to remove nitrogen, organic matters and the like in the water, so that the A2O process can remove the nitrogen and the organic matters in the wastewater, and the indexes such as ammonia nitrogen, total nitrogen, BOD and the like are ensured to reach relevant indexes, so that the diversity and the complexity of various wastewater can be treated.
The hydrolytic acidification tank 1, the anaerobic tank 2 and the anoxic tank 3 are internally provided with a submersible mixer 17, so that uniform mixing in the tank is ensured, and the requirement of the concentration of dissolved oxygen in the tank is maintained.
The aerobic tank 4 is connected with a pipeline of an aerobic blower 12, and a microporous aerator 18 is arranged in the aerobic tank 4, so that the dissolved oxygen concentration in the tank is maintained at 2-4 milligrams per liter, and the normal growth of microorganisms is ensured. The organic cooperation of three different environmental conditions of anaerobic, anoxic and aerobic and the type microorganism flora can simultaneously have the functions of removing organic matters, denitrification and dephosphorization.
Biological fillers 8 are respectively arranged in the hydrolysis acidification tank 1, the anaerobic tank 2, the anoxic tank 3 and the aerobic tank 4, and the combined fillers consist of fiber bundles, plastic ring sheets, sleeves and central ropes, so that the hydrolysis acidification tank has the advantages of high heat dissipation performance, small resistance, good water and gas distribution performance, easiness in film growth, cutting bubble effect and high oxygen transfer rate and utilization rate. The efficient combined filler is arranged in the tank, so that microorganism adhesion is facilitated, and residual COD, ammonia nitrogen and total nitrogen are reduced.
Set up the MBR unit behind A2O sewage treatment pond, the MBR unit adopts two sets of independent membrane ponds, first MBR membrane pond 5 and second MBR membrane pond 6 promptly, be provided with first control valve 10 and second control valve 11 on overflow pipeline 20, control two sets of membrane ponds parallel simultaneous operation or independent operation, can realize carrying out chemical cleaning in the MBR pond, need not to set up the washing pond again, more easy operation management, two sets of designs of MBR, when the circumstances such as dirty stifled appear in one of them set of membrane group, can not influence the production progress, guarantee the continuous normal operating of system.
A2O effluent enters a first MBR membrane tank 5 and a second MBR membrane tank 6, an MBR blower 13 is connected to the MBR membrane tank, and the MBR membrane adopts a ceramic flat membrane with larger flux, stronger pollution resistance and longer service life; the MBR membrane tanks are arranged in parallel, and are respectively and independently operated or simultaneously operated, COD (chemical oxygen demand) is continuously degraded and ammonia nitrogen is continuously removed through nitrification, and water is pumped into the MBR water producing tank 7 through the MBR water producing pump pipeline 14 after the MBR membrane is filtered.
The mixed liquor in the first MBR membrane tank 5 and the second MBR membrane tank 6 partially flows back to the hydrolysis acidification tank 1 at the front end through an MBR return pump pipeline 16, so that the sludge concentration and biomass in the system are maintained, and the mixed liquor partially flows back to the anoxic tank 3, and further denitrification is realized.
The MBR membrane adopts a ceramic flat membrane, which is different from a conventional hollow fiber membrane and comprises: the anti-pollution capability is strong, the pollution is not easy to happen, the cleaning is convenient, the online cleaning can be realized, the cleaning period is longer, and the cleaning is carried out once in 6-12 months; the mechanical strength is high, the mechanical stability is good, and the phenomenon of broken wires is avoided; long service life of the membrane, low operation cost, simple replacement of the membrane, single membrane Zhang Genghuan, and the like.
Compared with the traditional secondary sedimentation tank, the MBR membrane tank adopting the ceramic flat membrane can not only improve the sludge concentration and avoid sludge loss, but also has better solid-liquid separation efficiency, high-quality and stable effluent quality, and can improve the solid-liquid separation efficiency and the biochemical reaction rate.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same according to the content of the present utility model, and are not intended to limit the scope of the present utility model. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments and that the present utility model may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present utility model be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.
Claims (6)
1. An MBR membrane integrated sewage treatment device is characterized by comprising an MBR unit, an MBR water producing tank, and an integrated hydrolysis acidification tank, an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially communicated; the sewage is input into the hydrolysis acidification tank through a water inlet pipeline, the aerobic tank is communicated with the MBR unit through an overflow pipeline, and the MBR unit is communicated with the MBR water producing tank through an MBR water producing pump pipeline;
the MBR unit comprises a first MBR membrane tank and a second MBR membrane tank which are parallel to each other, a first control valve and a second control valve are arranged on the overflow pipe, and the first MBR membrane tank and the second MBR membrane tank respectively and independently run or run simultaneously.
2. The MBR membrane integrated sewage treatment device according to claim 1, wherein the MBR water producing pump pipeline pumps purified water in the first MBR membrane tank and the second MBR membrane tank to the MBR water producing tank, and mixed liquid in the first MBR membrane tank and the second MBR membrane tank is refluxed to the hydrolytic acidification tank and the anoxic tank through the MBR reflux pump pipeline.
3. The MBR membrane integrated sewage treatment device of claim 1, wherein the hydrolytic acidification tank, the anaerobic tank and the anoxic tank are all internally provided with submersible mixers.
4. The MBR membrane integrated sewage treatment device according to claim 1, wherein the MBR membrane of the MBR membrane tank is a ceramic flat plate membrane.
5. The MBR membrane integrated sewage treatment device of claim 1, wherein an aerobic blower is connected to the aerobic tank, and a microporous aerator is arranged in the aerobic tank to maintain the concentration of dissolved oxygen in the tank at 2-4 milligrams per liter.
6. The MBR membrane integrated sewage treatment device according to claim 1, wherein biological fillers are respectively arranged in the hydrolytic acidification tank, the anaerobic tank, the anoxic tank and the aerobic tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322221425.2U CN220618636U (en) | 2023-08-17 | 2023-08-17 | MBR membrane integrated sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322221425.2U CN220618636U (en) | 2023-08-17 | 2023-08-17 | MBR membrane integrated sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220618636U true CN220618636U (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322221425.2U Active CN220618636U (en) | 2023-08-17 | 2023-08-17 | MBR membrane integrated sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220618636U (en) |
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2023
- 2023-08-17 CN CN202322221425.2U patent/CN220618636U/en active Active
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