CN214571034U - Unpowered nitrifying liquid reflux unit - Google Patents
Unpowered nitrifying liquid reflux unit Download PDFInfo
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- CN214571034U CN214571034U CN202120815644.1U CN202120815644U CN214571034U CN 214571034 U CN214571034 U CN 214571034U CN 202120815644 U CN202120815644 U CN 202120815644U CN 214571034 U CN214571034 U CN 214571034U
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- tank
- aerobic
- anoxic tank
- gas distribution
- distribution pipe
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an unpowered nitrifying liquid reflux device, which comprises an anoxic tank, wherein an aerobic tank is arranged above the anoxic tank, the aerobic tank and the anoxic tank are separated by a partition plate, a plurality of through holes are uniformly arranged on the partition plate, a plurality of L-shaped brackets are arranged on the side wall between the aerobic tank and the anoxic tank, and the partition plate is arranged on the brackets; the anoxic tank is provided with a water inlet pipe, and the water inlet pipe extends to the bottom of the anoxic tank; the bottom of the aerobic tank is provided with an aerobic gas distribution pipe, the bottom of the anoxic tank is provided with an anaerobic gas distribution pipe, the aerobic gas distribution pipe and the anaerobic gas distribution pipe are respectively connected with a gas inlet pipe, and the gas inlet pipe is connected with a fan; the aerobic tank is filled with polyurethane and MBBR filler, and the polyurethane and MBBR filler are filled in the spherical net. The anoxic tank and the aerobic tank adopt an upper-lower structure, a reflux pump is not required to be arranged, and the reflux of the nitrified liquid can be realized.
Description
Technical Field
The utility model relates to a sewage purification technical field, concretely relates to unpowered liquid reflux unit that nitrifies.
Background
In the sewage purification process, the nitrifying liquid backflow is also called internal backflow or mixed liquid backflow and flows from the aerobic tank to the anoxic tank, the backflow liquid is nitrifying liquid containing a large amount of nitrate nitrogen and is mixed with organic matters in the inlet water in the anoxic tank, and denitrification of nitrate nitrogen is carried out by denitrifying bacteria to remove total nitrogen. In the conventional process, the reflux of the nitrifying liquid needs to be realized by a water pump, the reflux amount of the nitrifying liquid is generally 100-300% of the water inflow, and the energy consumption of the water pump is high.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough of prior art, the utility model provides an unpowered liquid reflux unit that nitrifies that the energy consumption is low.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the unpowered nitrifying liquid reflux device comprises an anoxic tank, wherein an aerobic tank is arranged above the anoxic tank, the aerobic tank is separated from the anoxic tank by a partition plate, a plurality of through holes are uniformly formed in the partition plate, a plurality of L-shaped supports are arranged on the side wall between the aerobic tank and the anoxic tank, and the partition plate is placed on the supports; the anoxic tank is provided with a water inlet pipe, and the water inlet pipe extends to the bottom of the anoxic tank; the bottom of the aerobic tank is provided with an aerobic gas distribution pipe, the bottom of the anoxic tank is provided with an anaerobic gas distribution pipe, the aerobic gas distribution pipe and the anaerobic gas distribution pipe are respectively connected with a gas inlet pipe, and the gas inlet pipe is connected with a fan; the aerobic tank is filled with polyurethane and MBBR filler, and the polyurethane and MBBR filler are filled in the spherical net.
The utility model has the advantages that: the oxygen deficiency pond and the good oxygen pond of this scheme adopt upper and lower structure, and in the normal operating process, sewage in the oxygen deficiency pond flows to good oxygen pond through porous baffle upward, carries out biochemical treatment, and the fan is with being used for giving oxygen deficiency pond and good oxygen pond air feed. An anoxic air inlet pipe and an anoxic air distribution pipe are arranged in the anoxic tank, and an intermittent aeration mode is adopted to ensure that a certain dissolved oxygen concentration exists in the tank.
In the interval of stopping aeration, the nitrifying liquid in the aerobic tank sinks to the anoxic tank through the porous partition plate, and the nitrifying liquid can flow back without arranging a reflux pump. The amount of the nitrified liquid flowing back can be controlled by the size and the number of the through holes on the partition plate and the time for stopping aeration without power. The polyurethane and MBBR filler are used as carriers attached to microorganisms, and are completely mixed with water during aeration, and the environment for the growth of the microorganisms is three phases of gas, liquid and solid. The collision and shearing action of the reticular ball in water enables air bubbles to be finer, and the utilization rate of oxygen is increased.
Drawings
FIG. 1 is a structural diagram of an unpowered nitrifying liquid reflux device.
FIG. 2 is a structural diagram of the partition board and the aerobic gas distribution pipe.
FIG. 3 is a view showing the structure of the partition and the bracket.
Fig. 4 is a structural view of a spherical net.
The device comprises a fan 1, a fan 2, an aerobic tank 3, an anoxic tank 4, a water inlet pipe 5, a partition plate 6, an anaerobic gas distribution pipe 7, a support 8, an aerobic gas distribution pipe 9, a spherical net 10, a gas inlet pipe 11, a control valve 12, a peripheral pipe 13, a branch pipe 14 and a three-way joint.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
As shown in fig. 1 to 4, the unpowered nitrification liquid reflux device of the scheme comprises an anoxic tank 3, an aerobic tank 2 is arranged above the anoxic tank 3, the aerobic tank 2 and the anoxic tank 3 are separated by a partition plate 5, a plurality of through holes are uniformly formed in the partition plate 5, a plurality of L-shaped supports 7 are arranged on the side wall between the aerobic tank 2 and the anoxic tank 3, and the partition plate 5 is placed on the supports 7; the anoxic tank 3 is provided with a water inlet pipe 4, and the water inlet pipe 4 extends to the bottom of the anoxic tank 3; the bottom of the aerobic tank 2 is provided with an aerobic gas distribution pipe 8, the bottom of the anoxic tank 3 is provided with an anaerobic gas distribution pipe 6, the aerobic gas distribution pipe 8 and the anaerobic gas distribution pipe 6 are respectively connected with a gas inlet pipe 10, and the gas inlet pipe 10 is connected with the fan 1; the aerobic tank 2 is filled with polyurethane and MBBR filler, and the polyurethane and MBBR filler are filled in the spherical net 9.
This scheme oxygen deficiency pond and good oxygen pond 2 adopt upper and lower structure, and in the normal operating process, sewage in the oxygen deficiency pond flows to good oxygen pond 2 through porous baffle 5 upward, carries out biochemical treatment, fan 1 with be used for oxygen deficiency pond and good oxygen pond 2 air supplies. An anoxic air inlet pipe 10 and an anoxic air distribution pipe are arranged in the anoxic tank, and an intermittent aeration mode is adopted to ensure that a certain dissolved oxygen concentration exists in the tank.
In the interval of stopping aeration, the nitrified liquid in the aerobic tank 2 sinks to the anoxic tank through the porous partition plate 5, and the nitrified liquid can flow back without a reflux pump. The amount of the return flow of the nitrified liquid can be controlled by the size and the number of the through holes on the partition plate 5 and the time for stopping aeration without power. The polyurethane and MBBR filler are used as carriers attached to microorganisms, and are completely mixed with water during aeration, and the environment for the growth of the microorganisms is three phases of gas, liquid and solid. The collision and shearing action of the reticular ball in water enables air bubbles to be finer, and the utilization rate of oxygen is increased.
The inlet pipe 4 is provided with a control valve 11, and the air inflow can be adjusted through the control valve 11 on the inlet pipe 10. The aerobic gas distribution pipe 8 and the anaerobic gas distribution pipe 6 both comprise peripheral pipes 12, the peripheral pipes 12 are enclosed into a square structure, a plurality of branch pipes 13 are arranged between the peripheral pipes 12, the plurality of branch pipes 13 are evenly distributed on the peripheral pipes 12, the branch pipes 13 are connected with the peripheral pipes 12 through three-way joints 14, the peripheral pipes 12 are connected with the gas inlet pipe 10 through the three-way joints 14, and a plurality of gas holes are formed in the peripheral pipes 12 and the branch pipes 13. Ensure that oxygen can be uniformly distributed in the aerobic tank 2 and the anoxic tank 3, and ensure the effect of sewage purification.
The aerobic gas distribution pipe 8 is arranged on the clapboard 5, and the anaerobic gas distribution pipe 6 is arranged at the bottom of the anoxic tank 3 through an L-shaped bracket 7. So that the anaerobic gas distribution pipe 6 can stabilize the supporting plate and install.
Claims (4)
1. An unpowered nitrifying liquid reflux device is characterized by comprising an anoxic tank, wherein an aerobic tank is arranged above the anoxic tank, the aerobic tank is separated from the anoxic tank by a partition plate, a plurality of through holes are uniformly formed in the partition plate, a plurality of L-shaped supports are arranged on the side wall between the aerobic tank and the anoxic tank, and the partition plate is placed on the supports; the anoxic tank is provided with a water inlet pipe, and the water inlet pipe extends to the bottom of the anoxic tank; an aerobic gas distribution pipe is arranged at the bottom of the aerobic tank, an anaerobic gas distribution pipe is arranged at the bottom of the anoxic tank, the aerobic gas distribution pipe and the anaerobic gas distribution pipe are respectively connected with a gas inlet pipe, and the gas inlet pipe is connected with a fan; the aerobic tank is filled with polyurethane and MBBR filler, and the polyurethane and MBBR filler are filled in the spherical net.
2. The unpowered nitrifying liquid reflux device according to claim 1, wherein a control valve is arranged on the water inlet pipe.
3. The unpowered nitrifying liquid reflux unit as claimed in claim 1, wherein the aerobic gas distribution pipe and the anaerobic gas distribution pipe each comprise peripheral pipes, the peripheral pipes are surrounded into a square structure, a plurality of branch pipes are arranged between the peripheral pipes, the plurality of branch pipes are uniformly distributed on the peripheral pipes, the branch pipes are connected with the peripheral pipes through tee joints, the peripheral pipes are connected with the gas inlet pipes through tee joints, and a plurality of vent holes are formed in the peripheral pipes and the branch pipes.
4. The unpowered nitrifying liquid reflux device according to claim 3, wherein the aerobic gas distribution pipe is placed on the partition plate, and the anaerobic gas distribution pipe is installed at the bottom of the anoxic tank through an L-shaped bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120815644.1U CN214571034U (en) | 2021-04-20 | 2021-04-20 | Unpowered nitrifying liquid reflux unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120815644.1U CN214571034U (en) | 2021-04-20 | 2021-04-20 | Unpowered nitrifying liquid reflux unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214571034U true CN214571034U (en) | 2021-11-02 |
Family
ID=78360764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120815644.1U Active CN214571034U (en) | 2021-04-20 | 2021-04-20 | Unpowered nitrifying liquid reflux unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214571034U (en) |
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2021
- 2021-04-20 CN CN202120815644.1U patent/CN214571034U/en active Active
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