CN219239399U - Sewage denitrification treatment device - Google Patents
Sewage denitrification treatment device Download PDFInfo
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- CN219239399U CN219239399U CN202223017262.8U CN202223017262U CN219239399U CN 219239399 U CN219239399 U CN 219239399U CN 202223017262 U CN202223017262 U CN 202223017262U CN 219239399 U CN219239399 U CN 219239399U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model provides a sewage denitrification treatment device, which comprises a shell, wherein one side of the shell is provided with a water inlet pipe, and the other side of the shell is provided with a water outlet pipe; a plurality of processing components are arranged in the shell, and a backflow channel is arranged between every two adjacent processing components; the water outlet pipe is connected with the water inlet pipe through a backflow channel; the treatment assembly comprises a plurality of aerobic tanks and a plurality of anoxic tanks, the plurality of anoxic tanks and the plurality of aerobic tanks are sequentially arranged, and the anoxic tanks are arranged on one side close to the water inlet pipe; a dispersed water inlet plate is arranged between the shell and the anoxic tank, a plurality of first dispersed holes which are uniformly distributed are arranged on the dispersed water inlet plate, and a second dispersed hole corresponding to the first dispersed holes is arranged on the anoxic tank; a dispersion valve is arranged in the first dispersion hole; sewage enters the shell through the water inlet pipe, and the sewage after entering the shell enters the anoxic tank through the dispersing water inlet plate. The sewage denitrification treatment device has the advantages that the cost of the biological filter is low, back flushing is not needed, and the running cost is reduced.
Description
Technical Field
The utility model belongs to the field of advanced denitrification treatment of reverse osmosis concentrated water in urban sewage recycling, and particularly relates to a sewage denitrification treatment device.
Background
In the treatment of reverse osmosis concentrated water for sewage recycling, the traditional activated sludge method cannot be adopted to achieve the aim of biological denitrification, and the reverse osmosis concentrated water mainly has nutrition deficiency and is difficult to maintain the concentration of the activated sludge; the denitrification mode is also applied in engineering by adopting modes such as a biological filter and a deep bed filter, but various filters are subject to raw water conditions and action mechanisms, back flushing is required to be carried out regularly, the back flushing of the filters inevitably leads to load change, high requirements are put on control, in addition, backwash wastewater is generated, part of wastewater also enters the system to cause impact load or increase a regulation facility to carry out load buffering, moreover, the biological filter has high manufacturing cost and high operation cost, and the filter has the problems of high requirement on water inlet suspended matters, uneven back flushing and the like.
Disclosure of Invention
In view of the above, the utility model aims to provide a sewage denitrification treatment device for solving the problems of high cost and high operation cost of a biological filter.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a sewage denitrification treatment device comprises a shell, wherein one side of the shell is provided with a water inlet pipe, and the other side of the shell is provided with a water outlet pipe;
a plurality of processing components are arranged in the shell, and a backflow channel is arranged between every two adjacent processing components; the water outlet pipe is connected with the water inlet pipe through a backflow channel;
the treatment assembly comprises a plurality of aerobic tanks and a plurality of anoxic tanks, the plurality of anoxic tanks and the plurality of aerobic tanks are sequentially arranged, and the anoxic tanks are arranged on one side close to the water inlet pipe;
a dispersing water inlet plate is arranged between the shell and the anoxic tank, a plurality of first dispersing holes which are uniformly distributed are arranged on the dispersing water inlet plate, and a second dispersing hole corresponding to the first dispersing holes is arranged on the anoxic tank.
A dispersion valve is arranged in the first dispersion hole; sewage enters the shell through the water inlet pipe, and the sewage after entering the shell enters the anoxic tank through the dispersing water inlet plate.
Preferably, the liquid inlet pipe is provided with a water inlet valve.
Further, a first liquid outlet hole is formed between the anoxic tank and the anoxic tank, a second liquid outlet hole is formed between the anoxic tank and the aerobic tank, a third liquid outlet hole is formed between the aerobic tank and the aerobic tank, the anoxic tank is communicated with the anoxic tank, the anoxic tank is communicated with the aerobic tank, and the aerobic tank is communicated with the aerobic tank.
The first liquid outlet hole, the second liquid outlet hole and the third liquid outlet hole are respectively provided with a liquid outlet valve, and the top of the anoxic tank close to the end part of the water outlet pipe is provided with a water outlet channel; the water outlet channel is communicated with a water outlet pipe on the side wall of the shell, the water outlet channel is communicated with a backflow channel, and one end of the backflow channel, which is close to the water outlet pipe, is provided with a backflow pump.
Further, a plurality of baffle plates are arranged in the anoxic tank, one end of each baffle plate is fixed on the side wall of the anoxic tank, and the other end of each baffle plate is at a certain distance from the anoxic tank; the baffle plates are arranged in the anoxic tank in a staggered way.
Further, the number of baffles is at least 2. The anoxic tank is internally provided with a first denitrification filler, and the first denitrification filler is a biological filler.
Further, an air outlet pipe is arranged at one side of the anoxic tank close to the end part of the water outlet pipe, and the air outlet pipe is arranged above the denitrification filler.
Further, the bottom of the aerobic tank is provided with an aeration assembly, a second denitrification filler is arranged above the aeration assembly, the aeration assembly comprises an aeration plate and a blower, the aeration plate is arranged at the bottom of the aerobic tank, and the blower is connected with the aeration plate through a pipeline.
Further, the bottom of the anoxic tank is provided with an air inlet assembly, the air inlet assembly comprises an air inlet pipe and an air blower, one end of the air inlet pipe is connected with the air blower, and the other end of the air inlet pipe is communicated with the anoxic tank; the air inlet assembly is arranged below the first denitrification filler.
The anoxic tank is filled with air, the air can play an auxiliary disturbance role, the raw water rich in nitrate nitrogen and nitrite nitrogen and added with a carbon source can be fully contacted with biological filler, the denitrification is carried out by utilizing microorganisms on the biological film, the nitrate nitrogen is converted into nitrogen gas to be released into the atmosphere, and the dissolved oxygen of the system is controlled below 0.5 mg/L.
Further, a feeding bin is arranged on one side of the anoxic tank, a carbon source is arranged in the feeding bin, a discharging pipe is arranged at the bottom of the feeding bin, and a discharging valve is arranged on the discharging pipe.
Compared with the prior art, the sewage denitrification treatment device has the following beneficial effects:
1. the device does not need to carry out back flushing, the bottom of the anoxic tank is provided with the air inlet component, the air inlet component blows air into the bottom of the anoxic tank, so that the raw water rich in nitrate nitrogen and nitrite nitrogen and the raw water added with a carbon source are fully contacted with biological fillers, the reaction is more fully disturbed by air, substances are prevented from accumulating on the biological fillers, back flushing is not needed, an aeration component is arranged at the bottom of the aerobic tank, accumulation can be avoided while oxygen is supplied, and back flushing is not needed. Therefore, the cost of the biological filter is reduced, and the running cost is reduced.
2. The device is provided with the backflow channel, so that water flow fluctuation can be effectively reduced, impact on treatment effect caused by water quality fluctuation is reduced, when the carbon source addition amount is slightly large, a subsequent aerobic tank can be easily consumed, and the system COD is not increased; the baffle plate in the anoxic tank can prolong the sewage retention time. The extension of the residence time can effectively relieve the influence of the excessive dissolved oxygen of the system on the treatment effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a sewage denitrification treatment apparatus according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a sewage denitrification treatment apparatus according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a housing; 2. a water inlet pipe; 3. a water outlet pipe; 4. a return channel; 5. an aerobic tank; 6. an anoxic tank; 7. a dispersed water inlet plate; 8. a first dispersion hole; 9. a second dispersion hole; 10. a dispersion valve; 11. a water inlet valve; 12. a liquid outlet valve; 13. a water outlet channel; 14. a baffle plate; 15. a first denitrification filler; 16. an air outlet pipe; 17. a second denitrification filler; 18. an aeration assembly; 19. an air intake assembly; 20. an air inlet pipe; 21. a blower; 22. a reflux pump; 23. and (5) adding a bin.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
A sewage denitrification treatment device comprises a shell 1, wherein one side of the shell 1 is provided with a water inlet pipe 2, and the other side of the shell 1 is provided with a water outlet pipe 3; a plurality of processing components are arranged in the shell 1, and a backflow channel 4 is arranged between adjacent processing components; the water outlet pipe 3 is connected with the water inlet pipe 2 through a backflow channel 4; the treatment assembly comprises a plurality of aerobic tanks 5 and a plurality of anoxic tanks 6, the plurality of anoxic tanks 6 and the plurality of aerobic tanks 5 are sequentially arranged, and the anoxic tanks 6 are arranged on one side close to the water inlet pipe 2; a dispersing water inlet plate 7 is arranged between the shell 1 and the anoxic tank 6, a plurality of first dispersing holes 8 which are uniformly distributed are arranged on the dispersing water inlet plate 7, and a second dispersing hole 9 corresponding to the first dispersing holes 8 is arranged on the anoxic tank 6. A dispersion valve 10 is arranged in the first dispersion hole 8; sewage enters the shell 1 through the water inlet pipe 2, and the sewage after entering the shell 1 enters the anoxic tank 6 through the dispersed water inlet plate 7. Preferably, the liquid inlet pipe is provided with a water inlet valve 11.
A first liquid outlet is arranged between the anoxic tank 6 and the anoxic tank 6, a second liquid outlet is arranged between the anoxic tank 6 and the aerobic tank 5, a third liquid outlet is arranged between the aerobic tank 5 and the aerobic tank 5, the anoxic tank 6 is communicated with the anoxic tank 6, the anoxic tank 6 is communicated with the aerobic tank 5, and the aerobic tank 5 is communicated with the aerobic tank 5. The first liquid outlet hole, the second liquid outlet hole and the third liquid outlet hole are respectively provided with a liquid outlet valve 12, and the top of the anoxic tank 6 close to the end part of the water outlet pipe 3 is provided with a water outlet channel 13; the water outlet channel 13 is communicated with the water outlet pipe 3 on the side wall of the shell 1, the water outlet channel 13 is communicated with the backflow channel 4, and one end of the backflow channel 4, which is close to the water outlet pipe 3, is provided with a backflow pump 22.
A plurality of baffle plates 14 are arranged in the anoxic tank 6, one end of each baffle plate 14 is fixed on the side wall of the anoxic tank 6, and the other end of each baffle plate is at a certain distance from the anoxic tank 6; baffles 14 are staggered within anoxic tank 6. The number of baffles 14 is at least 2. The anoxic tank 6 is internally provided with a first denitrification filler 15, and the first denitrification filler 15 is a biological filler. An air outlet pipe 16 is arranged at one side of the anoxic tank 6 near the end part of the water outlet pipe 3, and the air outlet pipe 16 is arranged above the denitrification filler. The bottom of the aerobic tank 5 is provided with an aeration assembly 18, a second denitrification filler 17 is arranged above the aeration assembly 18, the aeration assembly 18 comprises an aeration plate and a blower 21, the aeration plate is arranged at the bottom of the aerobic tank 5, and the blower 21 is connected with the aeration plate through a pipeline.
The bottom of the anoxic tank 6 is provided with an air inlet assembly 19, the air inlet assembly 19 comprises an air inlet pipe 20 and a blower 21, one end of the air inlet pipe 20 is connected with the blower 21, and the other end of the air inlet pipe 20 is communicated with the anoxic tank 6; the air intake assembly 19 is disposed below the first denitrification filler 15. The anoxic tank 6 is filled with air, the air can play an auxiliary disturbance role, the raw water rich in nitrate nitrogen and nitrite nitrogen and added with a carbon source can be fully contacted with biological filler, the denitrification is carried out by utilizing microorganisms on a biological film, the nitrate nitrogen is converted into nitrogen gas to be released into the atmosphere, and the dissolved oxygen of the system is controlled below 0.5 mg/L. One side of the anoxic tank 6 is provided with a feeding bin 23, a carbon source is arranged in the feeding bin 23, the bottom of the feeding bin 23 is provided with a discharging pipe, and a discharging valve is arranged on the discharging pipe.
When the anaerobic treatment device is specifically used, a discharging valve is opened, a carbon source is added into inlet water, and the inlet water is mixed with concentrated water and reflux mixed liquid and then enters an anoxic tank 6; the blower 21 is turned on, the height of the first denitrification filler 15 is adjusted according to the depth of the pool, a stirring-free process design form is adopted, a sludge sedimentation air disturbance measure is adopted, nitrate nitrogen and nitrite nitrogen are fully contacted with raw water added with a carbon source and biological fillers, microorganisms on a biological film are utilized for denitrification, nitrate nitrogen is converted into nitrogen gas and released into the atmosphere, the dissolved oxygen of a system is controlled below 0.5mg/L, and the mixed solution can prolong the residence time of sewage in the baffle plate 14. The influence of the excessive high system dissolved oxygen on the treatment effect can be effectively relieved through the extension of the residence time, then the mixed liquid enters the aerobic tank 5 through the second liquid outlet hole, the aeration assembly 18 is opened for aeration, the mixed liquid after aeration enters the aerobic tank 5 again after passing through the second denitrification filler 17, then enters the water outlet channel 13, and the mixed liquid enters the backflow channel 4 through the backflow pump 22.
The index of NH3-N is measured in the nitration reaction process, aeration quantity and internal reflux quantity are determined by determining the index of NH3-N in the inflow water, aeration is provided by an aeration system, and an internal reflux pump 22 is positioned at the tail end of the aerobic tank 5 and adopts a through-wall internal reflux pump 22. In the embodiment, the anoxic tank 6 adopts a fixed braid biological denitrification filler, the filler height is adjusted according to the tank depth, a stirring-free process design form is adopted, a sludge air disturbance measure is assisted, a microporous aerator is arranged at the bottom of the anoxic tank 6, and aeration is started when needed to enable microorganisms on the filler to perform NH on water 3 -N-nitration de-agglomerationNitrate nitrogen and nitrite nitrogen should be formed.
Claims (9)
1. A sewage denitrification treatment device is characterized in that: comprises a shell (1), wherein one side of the shell (1) is provided with a water inlet pipe (2), and the other side of the shell (1) is provided with a water outlet pipe (3);
a plurality of processing components are arranged in the shell (1), and a backflow channel (4) is arranged between adjacent processing components; the water outlet pipe (3) is connected with the water inlet pipe (2) through a backflow channel (4);
the treatment assembly comprises a plurality of aerobic tanks (5) and a plurality of anoxic tanks (6), the plurality of anoxic tanks (6) and the plurality of aerobic tanks (5) are sequentially arranged, and the anoxic tanks (6) are arranged on one side close to the water inlet pipe (2);
a dispersed water inlet plate (7) is arranged between the shell (1) and the anoxic tank (6), a plurality of first dispersed holes (8) which are uniformly distributed are arranged on the dispersed water inlet plate (7), and a second dispersed hole (9) corresponding to the first dispersed holes (8) is arranged on the anoxic tank (6);
a dispersion valve (10) is arranged in the first dispersion hole (8); sewage enters the shell (1) through the water inlet pipe (2), and the sewage after entering the shell (1) enters the anoxic tank (6) through the dispersed water inlet plate (7).
2. A sewage denitrification treatment apparatus according to claim 1, wherein: the anaerobic treatment device is characterized in that a first liquid outlet hole is formed between the anaerobic tank (6) and the anaerobic tank (6), a second liquid outlet hole is formed between the anaerobic tank (6) and the aerobic tank (5), a third liquid outlet hole is formed between the aerobic tank (5) and the aerobic tank (5), the anaerobic tank (6) is communicated with the anaerobic tank (6), the anaerobic tank (6) is communicated with the aerobic tank (5), and the aerobic tank (5) is communicated with the aerobic tank (5).
3. A sewage denitrification treatment apparatus according to claim 2, wherein: the first liquid outlet hole, the second liquid outlet hole and the third liquid outlet hole are respectively provided with a liquid outlet valve (12), and the top of the anoxic tank (6) close to the end part of the water outlet pipe (3) is provided with a water outlet channel (13); the water outlet channel (13) is communicated with the water outlet pipe (3) on the side wall of the shell (1), the water outlet channel (13) is communicated with the backflow channel (4), and one end, close to the water outlet pipe (3), of the backflow channel (4) is provided with a backflow pump (22).
4. A sewage denitrification treatment apparatus according to claim 3, wherein: a plurality of baffle plates (14) are arranged in the anoxic tank (6), one end of each baffle plate (14) is fixed on the side wall of the anoxic tank (6), and the other end of each baffle plate is away from the anoxic tank (6); the baffle plates (14) are arranged in the anoxic tank (6) in a staggered way.
5. The sewage denitrification treatment apparatus according to claim 4, wherein: the number of the baffle plates (14) is at least 2, and a first denitrification filler (15) is arranged in the anoxic tank (6).
6. A sewage denitrification treatment apparatus according to claim 3, wherein: one side of the anoxic tank (6) close to the end part of the water outlet pipe (3) is provided with an air outlet pipe (16), and the air outlet pipe (16) is arranged above the denitrification filler.
7. A sewage denitrification treatment apparatus according to claim 1, wherein: the bottom of good oxygen pond (5) is equipped with aeration component (18), and the top of aeration component (18) is equipped with second denitrification filler (17), and second denitrification filler (17) set up in the top of aeration component (18), and aeration component (18) are including aeration board and air-blower (21), and the aeration board sets up in good oxygen pond (5) bottom, and air-blower (21) pass through the pipe connection with the aeration board.
8. A sewage denitrification treatment apparatus according to claim 1, wherein: the bottom of the anoxic tank (6) is provided with an air inlet assembly (19), the air inlet assembly (19) comprises an air inlet pipe (20) and a blower (21), one end of the air inlet pipe (20) is connected with the blower (21), and the other end of the air inlet pipe (20) is communicated with the anoxic tank (6); the air inlet assembly (19) is arranged below the first denitrification filler (15).
9. A sewage denitrification treatment apparatus according to claim 1, wherein: one side of the anoxic tank (6) is provided with a feeding bin (23), a carbon source is arranged in the feeding bin (23), the bottom of the feeding bin (23) is provided with a discharging pipe, and a discharging valve is arranged on the discharging pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017262.8U CN219239399U (en) | 2022-11-14 | 2022-11-14 | Sewage denitrification treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017262.8U CN219239399U (en) | 2022-11-14 | 2022-11-14 | Sewage denitrification treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239399U true CN219239399U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223017262.8U Active CN219239399U (en) | 2022-11-14 | 2022-11-14 | Sewage denitrification treatment device |
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| CN (1) | CN219239399U (en) |
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2022
- 2022-11-14 CN CN202223017262.8U patent/CN219239399U/en active Active
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