CN217499009U - Novel MBR integration equipment - Google Patents
Novel MBR integration equipment Download PDFInfo
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- CN217499009U CN217499009U CN202221492865.0U CN202221492865U CN217499009U CN 217499009 U CN217499009 U CN 217499009U CN 202221492865 U CN202221492865 U CN 202221492865U CN 217499009 U CN217499009 U CN 217499009U
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- 230000010354 integration Effects 0.000 title claims description 9
- 239000012528 membrane Substances 0.000 claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000010802 sludge Substances 0.000 claims abstract description 60
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- 239000010865 sewage Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010992 reflux Methods 0.000 claims description 37
- 239000000126 substance Substances 0.000 claims description 36
- 238000011001 backwashing Methods 0.000 claims description 29
- 230000001546 nitrifying effect Effects 0.000 claims description 16
- 238000010926 purge Methods 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 206010021143 Hypoxia Diseases 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000005276 aerator Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 19
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 18
- 239000011574 phosphorus Substances 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
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Abstract
The utility model discloses a novel MBR integrated device, which relates to the technical field of sewage treatment equipment and comprises a main body device box, wherein the main body device box is sequentially provided with an anoxic tank, an aerobic tank and a membrane tank from left to right, one side of the membrane tank, which is far away from the aerobic tank, is also provided with a device room, and one side of the device room is also provided with a sludge tank and a clean water tank side by side; a water inlet assembly for entering sewage is arranged inside the anoxic tank; the utility model discloses a perforation water distributor of oxygen deficiency pond replaces traditional dive mixer, utilizes the power of intake pump to stir the oxygen deficiency pond, adopts good oxygen pond perforation water distributor to replace traditional micropore aerator in the good oxygen pond in addition, utilizes the high oxygen-containing dense liquid of membrane pool to be good oxygen pondOxygen supply and the traditional aerobic pool fan is cancelled. The energy consumption for operation is reduced, and is 100m 3 The MBR integrated equipment for the/d is taken as an example, and the energy consumption per ton of water can be reduced by 20 percent.
Description
Technical Field
The utility model relates to a sewage treatment device technical field specifically is a novel MBR integration equipment.
Background
In recent years, with increasingly severe water eutrophication and improvement of the sewage discharge standard in China, the traditional AAO process can not meet the market demand gradually, the effluent standard is difficult to achieve, advanced treatment such as sand filtration and the like is often required for the effluent, the operation is complex, and the effluent is unstable. With the increasing maturity of membrane production technology, MBR technology adopting membrane components to replace secondary sedimentation tanks gradually comes to the forefront of people.
The average pore size of the MBR membrane is about 0.03 mu m generally, most suspended matters in sewage can be effectively intercepted, and main pollutants in the sewage are concentrated in the activated sludge, so that the SS (suspended solid) of effluent of the MBR process is extremely low, most of the activated sludge is intercepted in the system, the concentration of the activated sludge in the system is far higher than that of the traditional activated sludge process, and the treatment efficiency is also far higher than that of the traditional AAO process. However, because the sludge concentration in the system is too high, impurities such as sludge and the like are easily adsorbed on the membrane module, and gradually cause membrane blockage, namely membrane pollution, so that the membrane module needs to be continuously swept in the MBR process in use, the air quantity required in sweeping is extremely large and far exceeds the air quantity required by aerobic aeration, so that the MBR process has high energy consumption, and certain defects exist in the actual use of the process.
To the above problem, the utility model provides a novel high-efficient energy-conserving MBR integration equipment for solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel MBR integration equipment to solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a novel MBR integrated device comprises a main device box, wherein the main device box is sequentially provided with an anoxic tank, an aerobic tank and a membrane tank from left to right, one side of the membrane tank, which is far away from the aerobic tank, is also provided with a device room, and one side of the device room is also provided with a sludge tank and a clean water tank in parallel;
a water inlet assembly for entering sewage is arranged inside the anoxic tank;
a water passing hole is formed in one end of the partition plate between the aerobic tank and the membrane tank, a membrane grid is arranged on one side, located on the membrane tank, of the water passing hole, and a water passing pipe is arranged between the anoxic tank and the aerobic tank;
the bottom of the aerobic tank is provided with an aerobic tank perforated water distribution pipe, one corner of the membrane tank is provided with a concentrated solution reflux pump/sludge discharge pump, the output end of the concentrated solution reflux pump/sludge discharge pump is connected with a concentrated solution reflux pipe and a sludge discharge pipe, one end of the concentrated solution reflux pipe, which is far away from the concentrated solution reflux pump/sludge discharge pump, is communicated with the aerobic tank perforated water distribution pipe, one end of the sludge discharge pipe, which is far away from the concentrated solution reflux pump/sludge discharge pump, is arranged in the sludge discharge pipe, one corner of the aerobic tank, which is close to the membrane tank, is provided with a nitrifying solution reflux pump, the output end of the nitrifying solution reflux pump is connected with a nitrifying solution reflux pipe, and the outlet end of the nitrifying solution reflux pipe is arranged at one corner of the anoxic tank, which is far away from the aerobic tank;
a supernatant return pipe of the sludge tank is also arranged between the membrane tank and the sludge tank, an MBR membrane module is arranged in the membrane tank, and a purging module for blowing air into the MBR membrane module and purging the MBR membrane module is arranged on the MBR membrane module;
the inside one side of equipment room is equipped with produces the water pump, produces water pump input end and clean water basin intercommunication, it is equipped with and produces the water pipe to produce the water pump output end, produce water pipe and MBR membrane module intercommunication, it is equipped with the ultraviolet disinfector to produce the inside position of water pipe bit in equipment room, still be equipped with in the equipment room and be used for adding the medicine subassembly that adds the medicine to the membrane cisterna.
On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:
in one alternative: the water inlet assembly comprises a water inlet, the water inlet is arranged on one side, away from the aerobic tank, of the anoxic tank, the anoxic tank bottom is provided with an anoxic tank perforated water distribution pipe, and the water inlet is communicated with the anoxic tank perforated water distribution pipe.
In one alternative: the purging component comprises a membrane purging fan, an air pipe is arranged at the output end of the membrane purging fan, and the air pipe is communicated with the interior of the MBR membrane component.
In one alternative: the chemical feeding assembly comprises a phosphorus removal chemical feeding system, the phosphorus removal chemical feeding system is arranged at one side of the inside of the equipment room, a membrane backwashing chemical feeding system which is arranged side by side with the phosphorus removal chemical feeding system is further arranged in the equipment room, a phosphorus removal chemical feeding pipe is arranged at a chemical discharging port of the phosphorus removal chemical feeding system, an outlet end of the phosphorus removal chemical feeding pipe is arranged inside the membrane pool, a membrane cleaning chemical feeding pipe is arranged at a chemical discharging port of the membrane backwashing chemical feeding system, a backwashing pump is arranged inside the clean water pool, a recycling water pipe is arranged at an output end of the backwashing pump and is respectively communicated with the phosphorus removal chemical feeding system and the membrane backwashing chemical feeding system, a backwashing pipe is further connected onto the recycling water pipe, one end, far away from the recycling water pipe, of the backwashing pipe is communicated with the backwashing pipe, and a port of the membrane cleaning chemical feeding pipe is communicated with the backwashing pipe.
In one alternative: and a water outlet is also formed in one side of the clean water tank.
In one alternative: and the bottoms of the anoxic tank, the aerobic tank, the membrane tank, the sludge tank and the clean water tank are provided with emptying evacuation ports.
In one alternative: an anoxic tank dissolved oxygen instrument is arranged in the anoxic tank, and an aerobic tank dissolved oxygen instrument is also arranged in the aerobic tank.
In one alternative: the equipment room is also internally provided with a control system cabinet for controlling the equipment, and the equipment room is also provided with an access door for entering the equipment room.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses an oxygen deficiency pond perforation water distributor replaces traditional dive mixer, utilizes the power of intake pump to stir the oxygen deficiency pond, adopts good oxygen pond perforation water distributor to replace traditional micropore aerator in the good oxygen pond in addition, utilizes the high oxygen-bearing dense liquid in membrane cisterna to good oxygen pond oxygen suppliment, has cancelled traditional good oxygen pond fan. The energy consumption for operation is reduced, and is 100m 3 MBR integration of/dFor example, the energy consumption per ton of water can be reduced by 20%.
2. The utility model discloses use perforated pipe to replace traditional mixer and micropore aeration system, cancelled good oxygen pond aeration fan, optimized the space between equipment, reduced the size between equipment, therefore equipment overall cost greatly reduced.
3. The utility model has high integration degree, the MBR integrated equipment integrates an anoxic tank, an aerobic tank, a membrane tank, a sludge tank, a clean water tank and an equipment room, the equipment can be used by being connected with electricity on site, the construction period is shortened, the construction cost is reduced, and a specially arranged recycling system does not need an external water source; when electricity can not be connected under special conditions, the solar panel can be configured and the solar energy is used for supplying power.
4. The utility model discloses utilize the interception effect of MBR membrane module, activated sludge concentration in the assurance system, the carbon removal effect of reinforceing system increases chemical dephosphorization technology on the basis of guaranteeing AO technology denitrogenation effect in addition, avoids denitrogenation and dephosphorization contradiction on the mud age, guarantees whole denitrogenation dephosphorization effect, ensures that C, N, P homoenergetic obtains the efficient and gets rid of.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic structural view of the section view of the main view of the present invention.
Wherein: 1. an anoxic tank; 2. an aerobic tank; 3. a membrane tank; 4. a sludge tank; 5. a clean water tank; 6. a device room; 7. a water inlet; 8. emptying the air; 9. a water pipe; 10. water passing holes; 11. cleaning the membrane and adding the medicine tube; 12. an air duct; 13. recycling the water pipe; 14. a water outlet; 15. a water distribution pipe is perforated in the anoxic tank; 16. a dissolved oxygen instrument in the anoxic tank; 17. a water distribution pipe is perforated in the aerobic tank; 18. a dissolved oxygen instrument of the aerobic tank; 19. a nitrifying liquid reflux pump; 20. an MBR membrane module; 21. a membrane grid; 22. a concentrate reflux pump/sludge discharge pump; 23. a phosphorus removal and medicine feeding system; 24. a membrane backwashing dosing system; 25. a membrane purge fan; 26. an ultraviolet sterilizer; 27. a water production pump; 28. a backwash pump; 29. a control system cabinet; 30. a dephosphorization dosing pipe; 31. a supernatant liquid return pipe of the sludge tank; 32. a nitrifying liquid return pipe; 33. a concentrated solution return pipe; 34. a sludge discharge pipe; 35. a water production pipe; 36. backwashing the tubes; 37. the main body equipment box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
In one embodiment, as shown in fig. 1-2, a novel MBR integrated device comprises a main device box 37, wherein the main device box 37 is provided with an anoxic tank 1, an aerobic tank 2 and a membrane tank 3 in sequence from left to right, a device room 6 is further provided on one side of the membrane tank 3 away from the aerobic tank 2, and a sludge tank 4 and a clean water tank 5 are further provided on one side of the device room 6 in parallel; a water outlet 14 is further formed in one side of the clean water tank 5, emptying ports 8 for emptying are formed in the bottoms of the anoxic tank 1, the aerobic tank 2, the membrane tank 3, the sludge tank 4 and the clean water tank 5, the emptying ports 8 are used for emptying the tanks, and an anoxic tank dissolved oxygen meter 16 is arranged inside the anoxic tank 1 and used for monitoring the dissolved oxygen concentration of the anoxic tank 1; an aerobic pool dissolved oxygen instrument 18 is also arranged in the aerobic pool 2, the aerobic pool dissolved oxygen instrument 18 is used for monitoring the concentration of dissolved oxygen in the aerobic pool 2, uploading data to a control system, and adjusting the flow of a concentrated solution reflux pump/sludge discharge pump 22 according to the data; the equipment room 6 is also internally provided with a control system cabinet 29 for controlling equipment, and the equipment room 6 is also provided with an access door for entering the equipment room 6.
The integrated degree is high, and this MBR integration equipment has integrateed oxygen deficiency pond 1, good oxygen pond 2, membrane cisterna 3, sludge impoundment 4, clean water basin 5 and equipment room 6, and equipment connects the electricity to the scene and just can use, and the reduction of erection time reduces construction cost, and the recycling system who sets up very much can not need external water source.
A water inlet assembly for entering sewage is arranged in the anoxic tank 1; the water inlet assembly comprises a water inlet 7, the water inlet 7 is arranged on one side, away from the aerobic tank 2, of the anoxic tank 1, an anoxic tank perforated water distribution pipe 15 is arranged at the bottom of the anoxic tank 1, and the water inlet 7 is communicated with the anoxic tank perforated water distribution pipe 15.
The during operation, sewage gets into oxygen deficiency pond 1 from 1 front end water inlet 7 in oxygen deficiency pond, punch a hole water distributor 15 through the oxygen deficiency pond and evenly spread in oxygen deficiency pond 1, utilize the power of intake pump, stir oxygen deficiency pond 1, prevent sludge deposition, anaerobism and facultative anaerobe in the oxygen deficiency pond 1 are protein in the sewage, macromolecular organic matters such as cellulose are hydrolysised to the micro molecule organic matter, increase the biochemical nature performance of sewage, utilize the organic substrate in the sewage as the electron donor in addition, progressively reduce oxynitride into nitrogen gas, reach the purpose of denitrogenation.
A water passing opening 10 is formed in one end of a partition plate between the aerobic tank 2 and the membrane tank 3, a membrane grating 21 is arranged on one side, located on the membrane tank 3, of the water passing opening 10, and the membrane grating 21 is used for intercepting fibrous impurities in water and preventing an MBR (membrane bioreactor) membrane assembly 20 from being blocked; a water pipe 9 is arranged between the anoxic tank 1 and the aerobic tank 2; the aerobic tank 2 is provided with an aerobic tank perforated water distribution pipe 17 at the bottom, a concentrated solution reflux pump/sludge discharge pump 22 is arranged at one corner of the membrane tank 3, the output end of the concentrated solution reflux pump/sludge discharge pump 22 is connected with a concentrated solution reflux pipe 33 and a sludge discharge pipe 34, one end of the concentrated solution reflux pipe 33, which is far away from the concentrated solution reflux pump/sludge discharge pump 22, is communicated with the aerobic tank perforated water distribution pipe 17, one end of the sludge discharge pipe 34, which is far away from the concentrated solution reflux pump/sludge discharge pump 22, is arranged in the sludge discharge pipe 34, the aerobic tank 2 uses the aerobic tank perforated water distribution pipe 17 to replace a traditional micro-pore aerator, high-oxygen-content concentrated solution refluxed by the concentrated solution reflux pump/sludge discharge pump 22 in the membrane tank 3 supplies oxygen to the aerobic tank 2, an aerobic tank aeration fan is cancelled, the energy is fully utilized, the energy consumption is reduced, and the operation cost is saved.
A nitrifying liquid reflux pump 19 is arranged at one corner of the aerobic tank 2 close to the membrane tank 3, the output end of the nitrifying liquid reflux pump 19 is connected with a nitrifying liquid reflux pipe 32, and the outlet end of the nitrifying liquid reflux pipe 32 is arranged at one corner of the anoxic tank 1 far away from the aerobic tank 2;
the sewage enters an aerobic tank 2 after passing through an anoxic tank 1, wherein aerobic microorganisms are mainly in the aerobic tank 2, and the aerobic microorganisms perform respiration by using molecular oxygen as a final electron acceptor to convert one part of organic matters in the sewage into carbon dioxide and water, and synthesize the other part of the organic matters into new cell substances; organic nitride such as protein and the like is decomposed into ammonia nitrogen under aerobic or anaerobic conditions, the ammonia nitrogen is converted into nitrate nitrogen by nitrifying bacteria or nitrosobacteria under the aerobic conditions, and finally flows back to the anoxic tank 1, and is converted into molecular nitrogen through the denitrification of denitrifying bacteria and discharged into the air, so that the aim of denitrification is finally fulfilled.
A sludge tank supernatant liquid return pipe 31 is further arranged between the membrane tank 3 and the sludge tank 4, an MBR membrane module 20 is arranged inside the membrane tank 3, and a purging module for blowing air into the MBR membrane module 20 and purging the MBR membrane module 20 is arranged on the MBR membrane module 20; the purging component comprises a membrane purging fan 25, an air pipe 12 is arranged at the output end of the membrane purging fan 25, and the air pipe 12 is communicated with the interior of the MBR membrane component 20.
The aperture of the MBR membrane module 20 is about 0.03 mu m generally, the MBR membrane module has strong interception effect, the suspended matters in the effluent of the normal membrane tank 3 can reach below 10mg/L, the suspended matters in the effluent can reach below 5mg/L under better operation conditions, and the residual pollutants are mainly gathered in the activated sludge, so the effluent of the MBR process is very excellent and relatively stable. Meanwhile, the membrane sweeping fan 25 continuously sweeps the membrane module to relieve membrane pollution.
A water production pump 27 is arranged on one side inside the equipment room 6, the input end of the water production pump 27 is communicated with the clean water tank 5, the output end of the water production pump 27 is provided with a water production pipe 35, the water production pipe 35 is communicated with the MBR membrane module 20, an ultraviolet sterilizer 26 is arranged at the position, located inside the equipment room 6, of the water production pipe 35, the ultraviolet sterilizer 26 is installed at the front end of the water production pump 27, and a lamp tube is arranged inside the ultraviolet sterilizer 26 and is in direct contact with water during operation, so that the flow velocity in the tube cannot be too high, water flow is prevented from impacting the lamp tube, and the service life of the lamp tube is prevented from being influenced; a dosing assembly for dosing into the membrane tank 3 is also arranged in the equipment room 6; the chemical feeding assembly comprises a phosphorus removal chemical feeding system 23, the phosphorus removal chemical feeding system 23 is arranged at one side of the inside of the equipment room 6, a membrane backwashing chemical feeding system 24 which is arranged in parallel with the phosphorus removal chemical feeding system 23 is further arranged in the equipment room 6, a chemical discharging port of the phosphorus removal chemical feeding system 23 is provided with a phosphorus removal chemical feeding pipe 30, the outlet end of the phosphorus removal chemical feeding pipe 30 is arranged inside the membrane pool 3, a chemical discharging port of the membrane backwashing chemical feeding system 24 is provided with a membrane cleaning chemical feeding pipe 11, a backwashing pump 28 is arranged inside the clean water pool 5, the output end of the backwashing pump 28 is provided with a backwater pipe 13, the backwater pipe 13 is respectively communicated with the phosphorus removal chemical feeding system 23 and the membrane backwashing chemical feeding system 24, the backwater pipe 13 is further connected with a backwashing pipe 36, one end, far away from the backwater pipe 13, of the backwashing pipe 36 is communicated with the backwashing pipe 36, and the port of the membrane cleaning chemical feeding pipe 11 is communicated with the backwashing pipe 36.
In conclusion, during operation, sewage enters the anoxic tank 1 from the water inlet 7 at the front end of the anoxic tank 1, and is uniformly dispersed in the anoxic tank 1 through the perforated water distribution pipe 15 of the anoxic tank, the anoxic tank 1 is stirred by using the power of the water inlet pump to prevent sludge deposition, the anaerobic and facultative microorganisms in the anoxic tank 1 hydrolyze macromolecular organic matters such as protein and cellulose in the sewage into micromolecular organic matters to increase the biochemical performance of the sewage, and in addition, the organic substrate in the sewage is used as an electron donor to gradually reduce nitrogen oxides into nitrogen, so that the aim of nitrogen removal is fulfilled. The sewage enters an aerobic tank 2 after passing through an anoxic tank 1, wherein aerobic microorganisms are mainly in the aerobic tank 2, and the aerobic microorganisms perform respiration by using molecular oxygen as a final electron acceptor to convert one part of organic matters in the sewage into carbon dioxide and water, and synthesize the other part of the organic matters into new cell substances; organic nitride such as protein and the like is decomposed into ammonia nitrogen under aerobic or anaerobic conditions, the ammonia nitrogen is converted into nitrate nitrogen by nitrifying bacteria or nitrosobacteria under the aerobic conditions, and finally flows back to the anoxic tank 1, and is converted into molecular nitrogen through the denitrification of denitrifying bacteria and discharged into the air, so that the aim of denitrification is finally fulfilled.
Meanwhile, the aerobic tank 2 uses the perforated water distribution pipe 17 of the aerobic tank to replace the traditional microporous aerator, the high oxygen-containing concentrated solution which flows back through the concentrated solution return pump/sludge discharge pump 22 in the membrane tank 3 supplies oxygen for the aerobic tank 2, an aeration fan of the aerobic tank is omitted, the energy is fully utilized, the energy consumption is reduced, and the operation cost is saved. The concentrated solution reflux pump/sludge discharge pump 22 is controlled by frequency conversion, the dissolved oxygen concentration of the aerobic pool 2 is monitored in real time by the aerobic pool dissolved oxygen meter 18 arranged on the aerobic pool 2, and the flow of the concentrated solution reflux pump/sludge discharge pump 22 is automatically controlled by utilizing an algorithm built in the control system cabinet 29 according to the feedback data, so that the energy is saved. The membrane tank 3 is in an aerobic environment, the dissolved oxygen is generally higher, the flora type in the tank is similar to that in the aerobic tank 2, but the sludge concentration is higher, and after sewage flows into the membrane tank 3 from the aerobic tank 2, the residual organic matters are further decomposed and utilized. The aperture of the MBR membrane component 20 is about 0.03 mu m generally, the MBR membrane component has strong interception effect, the suspended matter of the effluent of the normal membrane tank 3 can reach below 10mg/L, and the operation condition isIn a better condition, the concentration can reach below 5mg/L, and at the moment, residual pollutants are mainly accumulated in the activated sludge, so that the effluent of the MBR process is very excellent and relatively stable. Most of total phosphorus in the sewage is converted into cell substances by the assimilation of microorganisms, and the rest of the total phosphorus is concentrated and collected in the sludge by a phosphorus removal medicament, and finally the residual sludge is discharged outside at regular time. The MBR membrane module 20 generally pumps out water under negative pressure, so the product water pump 27 is generally a self-priming pump with a certain suction lift. The MBR membrane module 20 effluent is generally connected to the inlet end of the water producing pump 27, the disinfection process of the equipment adopts ultraviolet disinfection, the ultraviolet disinfector 26 is internally provided with a lamp tube, and the lamp tube is directly contacted with water during operation, so the flow velocity in the tube cannot be too high, and the water flow is prevented from impacting the lamp tube to influence the service life of the lamp tube; therefore, the ultraviolet sterilizer 26 is arranged at the front end of the water producing pump 27 in the design. Because the water is pumped out under negative pressure, the active sludge and the like are continuously adsorbed on the surface of the membrane component when the system operates, the membrane flux is reduced, and the water yield of the system is continuously reduced. Therefore, in practical use, the water pump 27 needs to be operated for a period of time and then stopped for a period of time to relieve membrane fouling, and in current practical application, the pumping is generally stopped for 2 minutes after 8 minutes or stopped for 1 minute after 9 minutes. In addition, a membrane sweeping fan 25 is required to continuously sweep the membrane component to relieve membrane pollution, the air quantity required during sweeping is large, and the air quantity is generally required to be 0.2-0.4m according to data provided by different membrane manufacturers 3 The concentration of dissolved oxygen in the membrane pool 3 is higher and can generally reach 7-8mg/L when the air quantity per square meter per hour is in operation, so that the energy can be saved on the premise of meeting the requirements of an aerobic pool by refluxing the high-concentration dissolved oxygen concentrated solution in the membrane pool to the aerobic pool for oxygen supply.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a novel MBR integration equipment, includes main body equipment case (37), its characterized in that: the main body equipment box (37) is sequentially provided with an anoxic tank (1), an aerobic tank (2) and a membrane tank (3) from left to right, one side of the membrane tank (3) far away from the aerobic tank (2) is also provided with an equipment room (6), and one side of the equipment room (6) is also provided with a sludge tank (4) and a clean water tank (5) in parallel;
a water inlet assembly for entering sewage is arranged in the anoxic tank (1);
a water passing hole (10) is formed in one end of the partition plate between the aerobic tank (2) and the membrane tank (3), a membrane grating (21) is arranged on one side, located on the membrane tank (3), of the water passing hole (10), and a water passing pipe (9) is arranged between the anoxic tank (1) and the aerobic tank (2);
an aerobic tank perforated water distribution pipe (17) is arranged at the bottom of the aerobic tank (2), a concentrated liquid reflux pump/sludge discharge pump (22) is arranged at one corner of the membrane tank (3), the output end of the concentrated liquid reflux pump/sludge discharge pump (22) is connected with a concentrated liquid reflux pipe (33) and a sludge discharge pipe (34), one end of the concentrated liquid reflux pipe (33) far away from the concentrated liquid reflux pump/sludge discharge pump (22) is communicated with the aerobic tank perforated water distribution pipe (17), one end of the sludge discharge pipe (34) far away from the concentrated liquid reflux pump/sludge discharge pump (22) is arranged in the sludge discharge pipe (34), a nitrifying liquid reflux pump (19) is arranged at one corner of the aerobic tank (2) close to the membrane tank (3), the output end of the nitrifying liquid reflux pump (19) is connected with a nitrifying liquid reflux pipe (32), and the outlet end of the nitrifying liquid reflux pipe (32) is arranged at one corner of the anoxic tank (1) far away from the aerobic tank (2);
a supernatant return pipe (31) of the sludge tank is also arranged between the membrane tank (3) and the sludge tank (4), an MBR membrane module (20) is arranged inside the membrane tank (3), and a purging module for blowing air into the MBR membrane module (20) and purging the MBR membrane module (20) is arranged on the MBR membrane module (20);
equipment room (6) inside one side is equipped with produces water pump (27), produces water pump (27) input and clean water basin (5) intercommunication, it is equipped with produces water pipe (35) to produce water pump (27) output, produce water pipe (35) and MBR membrane module (20) intercommunication, it is equipped with ultraviolet disinfector (26) to produce the position that water pipe (35) are located equipment room (6) inside, still be equipped with in equipment room (6) and be used for adding the medicine subassembly that adds medicine in to membrane pond (3).
2. The MBR integrated device according to claim 1, wherein the water inlet assembly comprises a water inlet (7), the water inlet (7) is arranged on one side of the anoxic tank (1) far away from the aerobic tank (2), the bottom of the anoxic tank (1) is provided with an anoxic tank perforated water distributor (15), and the water inlet (7) is communicated with the anoxic tank perforated water distributor (15).
3. The novel MBR integrated equipment as set forth in claim 1, wherein the purging assembly comprises a membrane purging fan (25), the output end of the membrane purging fan (25) is provided with an air pipe (12), and the air pipe (12) is communicated with the interior of the MBR membrane assembly (20).
4. The novel MBR integrated equipment as claimed in claim 1, wherein the dosing assembly comprises a dephosphorization dosing system (23), the dephosphorization dosing system (23) is arranged at one side position inside the equipment room (6), a membrane backwashing dosing system (24) is further arranged in the equipment room (6) and is arranged side by side with the dephosphorization dosing system (23), a dephosphorization dosing pipe (30) is arranged at a discharge port of the dephosphorization dosing system (23), an outlet end of the dephosphorization dosing pipe (30) is arranged inside the membrane tank (3), a membrane cleaning dosing pipe (11) is arranged at a discharge port of the membrane backwashing dosing system (24), a backwashing pump (28) is arranged inside the clean water tank (5), a backwater tank (13) is arranged at an output end of the backwashing pump (28), and the backwater pipe (13) is respectively communicated with the dephosphorization dosing system (23) and the membrane backwashing dosing system (24), the membrane cleaning and chemical adding device is characterized in that a backwashing pipe (36) is further connected to the reuse water pipe (13), one end, far away from the reuse water pipe (13), of the backwashing pipe (36) is communicated with the backwashing pipe (36), and the port of the membrane cleaning and chemical adding pipe (11) is communicated with the backwashing pipe (36).
5. The MBR integrated device according to claim 1, wherein a water outlet (14) is formed at one side of the clean water tank (5).
6. The novel MBR integrated equipment according to claim 1, wherein the bottom of the anoxic tank (1), the aerobic tank (2), the membrane tank (3), the sludge tank (4) and the clean water tank (5) are provided with a drain port (8) for emptying.
7. The MBR integrated device according to claim 1, wherein an anoxic tank dissolved oxygen instrument (16) is arranged inside the anoxic tank (1), and an aerobic tank dissolved oxygen instrument (18) is arranged inside the aerobic tank (2).
8. The MBR integrated device according to claim 1, wherein a control system cabinet (29) for controlling the device is further arranged inside the device room (6), and an access door for accessing the device room (6) is further arranged on the device room (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492865.0U CN217499009U (en) | 2022-06-15 | 2022-06-15 | Novel MBR integration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221492865.0U CN217499009U (en) | 2022-06-15 | 2022-06-15 | Novel MBR integration equipment |
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| CN217499009U true CN217499009U (en) | 2022-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117486437A (en) * | 2024-01-03 | 2024-02-02 | 天津创业环保集团股份有限公司 | Denitrification and dephosphorization system and method suitable for high sludge concentration |
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2022
- 2022-06-15 CN CN202221492865.0U patent/CN217499009U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117486437A (en) * | 2024-01-03 | 2024-02-02 | 天津创业环保集团股份有限公司 | Denitrification and dephosphorization system and method suitable for high sludge concentration |
| CN117486437B (en) * | 2024-01-03 | 2024-04-12 | 天津创业环保集团股份有限公司 | Denitrification and dephosphorization system and method suitable for high sludge concentration |
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