CN222024181U - Suspended membrane filtration precipitation device and integrated system - Google Patents
Suspended membrane filtration precipitation device and integrated system Download PDFInfo
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- CN222024181U CN222024181U CN202420272225.1U CN202420272225U CN222024181U CN 222024181 U CN222024181 U CN 222024181U CN 202420272225 U CN202420272225 U CN 202420272225U CN 222024181 U CN222024181 U CN 222024181U
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- 238000005374 membrane filtration Methods 0.000 title claims abstract description 45
- 238000001556 precipitation Methods 0.000 title claims description 12
- 239000010802 sludge Substances 0.000 claims abstract description 62
- 238000004062 sedimentation Methods 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 67
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 11
- 238000005201 scrubbing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 16
- 239000003814 drug Substances 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本申请公开了一种吊挂式膜过滤沉淀装置，设置在沉淀池中，包括：支架、集泥斗、斜管组件和若干膜过滤组件；膜过滤组件的顶部与支架的顶部固定连接；集泥斗设置在支架的下部；斜管组件固设在膜过滤组件与集泥斗之间的位置上；进入沉淀池的污水需要经过斜管组件的沉淀作用，才与膜过滤组件接触；斜管组件的能够沉淀大部分的污泥，有效减少污水对膜过滤组件的污染，减缓了跨膜压差的升高，有效的减少对膜过滤组件药洗的频率。
The present application discloses a hanging membrane filtration sedimentation device, which is arranged in a sedimentation tank, and comprises: a bracket, a mud collecting bucket, an inclined tube assembly and a plurality of membrane filtration assemblies; the top of the membrane filtration assembly is fixedly connected to the top of the bracket; the mud collecting bucket is arranged at the lower part of the bracket; the inclined tube assembly is fixedly arranged at a position between the membrane filtration assembly and the mud collecting bucket; sewage entering the sedimentation tank needs to pass through the sedimentation effect of the inclined tube assembly before contacting the membrane filtration assembly; the inclined tube assembly can precipitate most of the sludge, effectively reducing the pollution of the membrane filtration assembly by sewage, slowing down the increase of the trans-membrane pressure difference, and effectively reducing the frequency of drug washing of the membrane filtration assembly.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a hanging type membrane filtration and precipitation device and an integrated system.
Background
An MBR Membrane-bioreactor (MBR) is a novel wastewater treatment system with organically combined Membrane separation technology and biological treatment technology. The membrane component is used for replacing a traditional biological treatment technology end secondary sedimentation tank, high activated sludge concentration is kept in a biological reactor, and biological treatment organic load is improved, so that the occupied area of sewage treatment facilities is reduced, and the residual sludge amount is reduced by keeping low sludge load. Mainly uses the membrane separation equipment immersed in the aerobic biological pool to intercept the activated sludge and macromolecular organic matters in the tank. The concentration of activated sludge (MLSS) in the membrane bioreactor system can be increased to 8000-10,000 mg/L or even higher; sludge age (SRT) can be prolonged to more than 30 days.
In sewage treatment, the MBR membrane technology is organically combined with a biological method and a membrane technology, water is produced by membrane filtration of a microporous filter membrane, and a traditional sedimentation tank and a traditional filtration tank are replaced by a membrane tank, so that the occupied area of a tank body is greatly reduced.
However, without providing a sedimentation tank, a large amount of sludge tends to accumulate around the membrane, increasing the transmembrane pressure difference at the time of membrane filtration. When the pressure difference reaches a certain degree, the membrane stops producing water to carry out medicine washing, and the medicine washing is frequent, so that the working efficiency is seriously affected.
Disclosure of utility model
The utility model aims to avoid the defects in the prior art and provide a sewage treatment technology capable of reducing the MBR membrane cleaning frequency.
The aim of the utility model is achieved by the following technical scheme:
According to one aspect of the present application, there is provided a hanging type membrane filtration and precipitation device provided in a precipitation tank, comprising: the device comprises a bracket, a sludge hopper, an inclined tube assembly and a plurality of membrane filtration assemblies; the top of the membrane filter component is fixedly connected with the top of the bracket; the sludge collecting hopper is arranged at the lower part of the bracket; the inclined tube component is fixedly arranged at the position between the membrane filtration component and the sludge collecting hopper.
Specifically, the inclined tube component is of a rectangular structure and comprises a plurality of inclined holes which are uniformly distributed.
Above, still include: a partition for forming a compartment in the sedimentation tank; the compartment is arranged on one side of the partition board, and the inclined tube component and the membrane filtration component are arranged on the other side of the partition board.
More specifically, the top of the bracket is also provided with a cross beam and a grating plate; the membrane filter assembly is fixedly connected with the cross beam through a mounting plate.
According to another aspect of the present application, there is provided an integrated system comprising: a case; the box body comprises a micro-oxygen tank, an anaerobic tank, a sedimentation tank and a clean water tank which are sequentially arranged in the box body; the sedimentation tank is internally provided with the hanging type membrane filtration sedimentation device.
Specifically, the micro-oxygen tank is provided with a first overflow pipe; one end of the first overflow pipe is arranged at the upper part of the micro-aerobic tank, and the other end of the first overflow pipe is communicated with the anaerobic tank; the anaerobic tank is provided with a second overflow pipe; one end of the second overflow pipe is arranged at the upper part of the anaerobic tank, and the other end of the second overflow pipe is communicated with the compartment.
In another embodiment, the device further comprises an emptying pipe; the emptying pipe is connected with a plurality of emptying valves, and each emptying valve is respectively connected with the corresponding micro-oxygen tank, anaerobic tank, sedimentation tank and clean water tank.
The water pump is also specifically arranged; the membrane filter assembly is also provided with a water collecting pipe; one end of the water producing pump is connected with the water collecting pipe, the other end is connected with a clean water tank.
In another embodiment, the device further comprises a sludge pump; the input end of the sludge pump is connected with a sludge inlet pipe, and the output end of the sludge pump is connected with a first sludge outlet pipe and a second sludge outlet pipe; the mud inlet pipe is connected with the mud collecting hopper, and the first mud outlet pipe is connected with the micro-oxygen tank.
The device also comprises a backwash pump and a fan; the input end of the backwash pump is connected with the clean water tank, the output end is connected with the water collecting pipe; the fan is connected with a scrubbing air pipe for cleaning the membrane filter assembly.
The utility model has the beneficial effects that: a hanging membrane filtration sedimentation device, disposed in a sedimentation tank, comprising: the device comprises a bracket, a sludge hopper, an inclined tube assembly and a plurality of membrane filtration assemblies; the top of the membrane filter component is fixedly connected with the top of the bracket; the sludge collecting hopper is arranged at the lower part of the bracket; the inclined tube component is fixedly arranged at the position between the membrane filtration component and the sludge collecting hopper; the sewage entering the sedimentation tank is only contacted with the membrane filtration assembly under the sedimentation action of the inclined tube assembly; most sludge can be precipitated by the inclined tube component, so that the pollution of sewage to the membrane filter component is effectively reduced, the rising of transmembrane pressure difference is slowed down, and the frequency of washing the membrane filter component by medicine is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a suspended membrane filtration and precipitation device according to an embodiment of the present application;
FIG. 2 is a schematic view of a part of a suspended membrane filtration and precipitation device according to an embodiment of the present application;
FIG. 3 is a schematic perspective view of an integrated system according to an embodiment of the present application;
FIG. 4 is a first partial schematic view of an integrated system according to an embodiment of the present application;
FIG. 5 is a second partial schematic view of an integrated system according to an embodiment of the present application;
In fig. 1 to 5, the method includes:
1. a case; 11. a micro-oxygen tank; 111. a first overflow pipe; 12. an anaerobic tank; 121. a second overflow pipe;
13. a sedimentation tank; 14. a clean water tank;
151. a water producing pump; 152. a backwash pump; 153. a sludge pump;
16. A blower; 161. scrubbing an air pipe;
171. A first water inlet pipe; 172. a first water outlet pipe; 173. a second water inlet pipe; 174. a second water outlet pipe;
175. a mud inlet pipe; 176. a first mud outlet pipe; 177. a main water inlet pipe; 178. a main water outlet pipe; 179. a second mud outlet pipe;
18. an evacuation tube; 181. an evacuation valve;
191. A first electrically operated valve; 192. a second electrically operated valve; 193. a third electrically operated valve; 194. a fourth electrically operated valve;
2. A hanging type membrane filtration and precipitation device; 21. a bracket; 211. a partition plate; 212. a grid plate; 213. a mounting plate;
214. a cross beam; 22. a membrane filtration assembly; 221. a water collecting pipe;
23. A chute assembly; 24. a mud collecting hopper; 25. a maintenance platform; 26. a compartment.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described by means of implementation examples with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
One implementation method of the integrated system of the present application, as shown in fig. 1 to 5, includes: a case 1; in this embodiment, the periphery of the case 1 is also provided with a railing and a ladder stand for use in maintenance.
The box body 1 comprises a micro-oxygen tank 11, an anaerobic tank 12, a sedimentation tank 13 and a clean water tank 14 which are sequentially arranged in the box body; the micro-oxygen tank 11 is connected with a main water inlet pipe 177; the clean water basin 14 is connected with a main water outlet pipe 178.
The micro-oxygen tank 11 is provided with a first overflow pipe 111; one end of the first overflow pipe 111 is provided at an upper portion of the micro-aerobic tank 11, and the other end is communicated with the anaerobic tank 12. The sewage from the regulating tank (not shown) enters the micro-aerobic tank 11 from the main water inlet pipe 177 by a lift pump (not shown), and after a certain residence time, enters the anaerobic tank 12 through the first overflow pipe 111.
Wherein, sewage in the micro-aerobic tank 11 overflows to the anaerobic tank 12 through the first overflow pipe 111 after a certain residence time, and organic matters in the water are removed by denitrification under the action of anaerobic bacteria. Because the dissolved oxygen in the sludge reacts with the organic matters in the sewage of the micro-aerobic tank 11, the short-cut nitrification is realized, and the large-sized organic matters which are difficult to decompose can be decomposed into small-sized organic matters, so that the denitrification reaction can be better completed, and therefore, the anaerobic tank 12 is internally provided with a flow pushing device, so that the denitrification reaction can be better.
The sedimentation tank 13 is internally provided with a hanging type membrane filtration sedimentation device 2, the hanging type membrane filtration sedimentation device 2 is internally provided with a baffle plate 211, and the baffle plate 211 forms a compartment 26 between the sedimentation tank 13 and the anaerobic tank 12.
The anaerobic tank 12 is provided with a second overflow pipe 121; one end of the second overflow pipe 121 is provided at the upper portion of the anaerobic tank 12, and the other end communicates with the compartment 26. After a certain residence time of the sewage in the anaerobic tank 12, it enters the compartment 26 through the second overflow pipe 121.
The hanging type membrane filtration and precipitation device 2 further comprises: a bracket 21, a sludge hopper 24, an inclined tube assembly 23 and a plurality of membrane filtration assemblies 22. Wherein the compartment 26 is provided on one side of the partition 211 and the chute assembly 23 and the membrane filtration assembly 22 are provided on the other side of the partition 211. The top of the bracket 21 is also provided with a cross beam 214 and a grating plate 212; the membrane filter assembly 22 is fixedly connected with the cross beam 214 through the mounting plate 213, so that the membrane filter assembly 22 is hung on the upper part of the sedimentation tank 13.
The sludge hopper 24 is arranged at the lower part of the bracket 21; the inclined tube assembly 23 is fixedly arranged at a position between the membrane filter assembly 22 and the sludge hopper 24. Wherein, the inclined tube assembly 23 is of a rectangular structure and comprises a plurality of uniformly distributed inclined holes.
In this embodiment, the partition 211 is welded on both sides to the tank side plates of the tank 1, forming the compartment 26 together with the tank side plates. The bottom of the partition 211 is lower than the bottom of the chute assembly 23 and the sewage must pass through the bottom of the chute assembly 23 after entering the compartment 26 to enter the membrane area of the upper half of the membrane filtration module 22.
The inclined tube component 23 arranged in the middle of the sedimentation tank 13 can sediment most of sludge. The sewage and sludge at the upper part of the sedimentation tank 13 are less, the pollution to the membrane of the membrane filter assembly 22 is less, the rise of the transmembrane pressure difference can be effectively slowed down, and the medicine washing frequency is reduced. In addition, the filtering and sedimentation functions are integrated in one sedimentation tank 13, so that the occupied area of the tank body is effectively reduced.
In this embodiment, the sewage treatment device further comprises an emptying pipe 18, the emptying pipe 18 is connected with a plurality of emptying valves 181, and each emptying valve 181 is respectively connected with the corresponding micro-oxygen tank 11, the anaerobic tank 12, the sedimentation tank 13 and the clean water tank 14 for emptying the tank water.
In this embodiment, the bottom of the membrane filtration module 22 is provided with an inspection platform 25, the bottom of the inspection platform 25 is supported by a section steel, and a grid plate or a flat plate is arranged on the section steel and fixed. The wall of the sedimentation tank 13 is provided with a ladder. When the maintenance is needed, the drain pipe valve at the bottom is opened to drain, so that the water level is lower than the platform, and maintenance personnel can go down to the maintenance platform 25 for maintenance through the cat ladder, so that the trouble that the membrane filter assembly 22 is lifted out for maintenance is avoided.
More specifically, an integrated system of the present application further comprises: a water producing pump 151, a sludge pump 153, a backwash pump 152 and a blower 16.
The blower 16 is connected with a scrubbing air duct 161, the scrubbing air duct 161 is connected with the lower part of the membrane filter assembly 22, and the blower 16 is used for providing high-pressure air to clean the membrane surface of the membrane filter assembly 22.
In addition, as the sludge in the sedimentation tank 13 has more dissolved oxygen, the micro-oxygen tank 11 can be provided with an appropriate amount of aeration pipes for aeration in order to enhance short-range nitrification.
The bottom of the sludge hopper 24 is connected with the input end of a sludge pump 153 through a sludge inlet pipe 175, and the output end of the sludge pump 153 is connected with a first sludge outlet pipe 176 and a second sludge outlet pipe 179; the first sludge outlet pipe 176 is connected with the micro-oxygen tank 11, and the second sludge outlet pipe 179 is used for connecting an external sludge tank (not shown in the figure); the first sludge outlet pipe 176 is provided with a fourth electric valve 194, and the second sludge outlet pipe 179 is provided with a third electric valve 193. By activating the sludge pump 153 and controlling the third and fourth electrically operated valves 193 and 194, excess sludge can be drawn into the micro-oxygen tank 11, providing a carbon source and microorganisms to the micro-oxygen tank 11; when the sludge amount is large, the sludge is discharged to an external sludge tank through a second sludge outlet pipe 179 of the sludge pump 153. That is, when the sludge concentration is too high, the fourth motor valve 194 is closed, and the third motor valve 193 is opened, discharging the sludge to the sludge tank; when the sludge concentration is proper, the third motor valve 193 is closed, and the fourth motor valve 194 is opened to discharge the sludge into the micro-oxygen tank 11.
The membrane filtration module 22 is also provided with a water collection pipe 221; the input end of the water producing pump 151 is connected with the water collecting pipe 221 through a first water inlet pipe 171, and the output end is connected with the clean water tank 14 through a first water outlet pipe 172; the first water outlet pipe 172 is provided with a second electric valve 192.
The input end of the backwash pump 152 is connected with the clean water tank 14 through a second water inlet pipe 173, and the output end of the backwash pump is connected with a water collecting pipe 221 through a second water outlet pipe 174; the second water outlet pipe 174 is provided with a first electrically operated valve 191.
When the water producing pump 151 is started, negative pressure is generated in the water collecting pipe 221; since the water collecting pipe 221 is connected to the membrane of each membrane filtration module 22, sewage is re-introduced into the water collecting pipe 221 through membrane filtration, and flows into the clean water tank 14 through the first water outlet pipe 172 connected to the water producing pump 151. When the water producing pump 151 is turned on, the second electric valve 192 on the first water outlet pipe 172 is turned on, the first electric valve 191 on the second water outlet pipe 174 is turned off, and the backwash pump 152 is turned off.
During backwashing, the backwash pump 152 is started, the water producing pump 151 is turned off, the backwash pump 152 is turned on from the clean water tank 14, the first electric valve 191 on the second water outlet pipe 174 is turned on, the second electric valve 192 on the first water outlet pipe 172 is turned off, and the membranes of the membrane filtration module 22 are backwashed from the second water outlet pipe 174.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the application, which is set forth in the following claims.
Claims (10)
1. A hanging membrane filtration sedimentation device, set up in the sedimentation tank, its characterized in that includes: the device comprises a bracket, a sludge hopper, an inclined tube assembly and a plurality of membrane filtration assemblies;
the top of the membrane filtration component is fixedly connected with the top of the bracket;
the sludge collecting hopper is arranged at the lower part of the bracket;
the inclined tube component is fixedly arranged at the position between the membrane filtration component and the sludge collecting hopper.
2. The hanging membrane filtration and precipitation device according to claim 1, wherein:
The inclined tube assembly is of a rectangular structure and comprises a plurality of inclined holes which are uniformly distributed.
3. A hanging membrane filtration and precipitation device according to claim 1 or 2, further comprising: a partition for forming a compartment in the sedimentation tank;
The compartment is arranged on one side of the partition board, and the inclined tube component and the membrane filtration component are arranged on the other side of the partition board.
4. A hanging membrane filtration precipitation device according to claim 3, wherein:
the top of the bracket is also provided with a cross beam and a grating plate;
The membrane filter assembly is fixedly connected with the cross beam through a mounting plate.
5. An integrated system, comprising: a case; the box body comprises a micro-oxygen tank, an anaerobic tank, a sedimentation tank and a clean water tank which are sequentially arranged in the box body; a hanging type membrane filtration sedimentation device as claimed in any one of claims 1 to 4 is arranged in the sedimentation tank.
6. An integrated system according to claim 5, wherein:
The micro-oxygen tank is provided with a first overflow pipe; one end of the first overflow pipe is arranged at the upper part of the micro-oxygen tank, and the other end of the first overflow pipe is communicated with the anaerobic tank;
The anaerobic tank is provided with a second overflow pipe; one end of the second overflow pipe is arranged at the upper part of the anaerobic tank, and the other end of the second overflow pipe is communicated with the compartment.
7. The integrated system of claim 6, further comprising an evacuation tube;
The emptying pipe is connected with a plurality of emptying valves, and each emptying valve is respectively connected with the corresponding micro-oxygen tank, anaerobic tank, sedimentation tank and clean water tank.
8. The integrated system of claim 6, further comprising a water producing pump;
The membrane filter assembly is also provided with a water collecting pipe;
one end of the water producing pump is connected with the water collecting pipe, and the other end of the water producing pump is connected with the clean water tank.
9. The integrated system of claim 6, further comprising a sludge pump; the input end of the sludge pump is connected with a sludge inlet pipe, and the output end of the sludge pump is connected with a first sludge outlet pipe and a second sludge outlet pipe;
The mud inlet pipe is connected with the mud collecting hopper, and the first mud outlet pipe is connected with the micro-oxygen tank.
10. The integrated system of claim 8, further comprising a backwash pump and a blower;
the input end of the backwash pump is connected with the clean water tank, and the output end of the backwash pump is connected with the water collecting pipe;
the fan is connected with a scrubbing air pipe for cleaning the membrane filter assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420272225.1U CN222024181U (en) | 2024-02-04 | 2024-02-04 | Suspended membrane filtration precipitation device and integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420272225.1U CN222024181U (en) | 2024-02-04 | 2024-02-04 | Suspended membrane filtration precipitation device and integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222024181U true CN222024181U (en) | 2024-11-19 |
Family
ID=93440254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420272225.1U Active CN222024181U (en) | 2024-02-04 | 2024-02-04 | Suspended membrane filtration precipitation device and integrated system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222024181U (en) |
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- 2024-02-04 CN CN202420272225.1U patent/CN222024181U/en active Active
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