CN208055014U - Denitrification device - Google Patents
Denitrification device Download PDFInfo
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- CN208055014U CN208055014U CN201820289760.2U CN201820289760U CN208055014U CN 208055014 U CN208055014 U CN 208055014U CN 201820289760 U CN201820289760 U CN 201820289760U CN 208055014 U CN208055014 U CN 208055014U
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- water distribution
- nitrification liquid
- anoxic pond
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- branch pipe
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Abstract
The utility model discloses a kind of denitrification device, including：Aerobic tank, aerobic tank is for containing nitrification liquid；Anoxic pond, anoxic pond are used to contain the mixed liquor of nitric wastewater and nitrification liquid；The water inlet of nitrification liquid reflux pump, nitrification liquid reflux pump is connected to aerobic tank, and the water outlet of nitrification liquid reflux pump is connected to outlet pipe；Water distributor, water distributor are arranged in anoxic pond, including interconnected water distribution supervisor and a plurality of water distribution branch pipe, and water distribution supervisor is connected to outlet pipe, and apopore is equipped on every water distribution branch pipe；Nitrification liquid reflux pump provides power for the reflux of nitrification liquid, nitrification liquid is flowed back into anoxic pond (ponds A) from aerobic tank (ponds O) by nitrification liquid reflux pump, nitrification liquid is evenly distributed to anoxic pond by water distribution supervisor and water distribution branch pipe, it comes into full contact with and mixes with nitrate combined sewage, anti-nitration reaction occurs, to achieve the purpose that denitrogenation.
Description
Technical field
The utility model belongs to water treatment field, more particularly, to a kind of denitrification device.
Background technology
As eutrophication water is increasing, sewage drainage standard is increasingly stringenter.Current processed eutrophication
Often there are problems that the imbalance of carbon N/P ratio in water body, promotes organic matter and phosphorus that can preferably be controlled, and nitrogen is up to standard
Discharge becomes the index of most critical in sewage disposal.
The most common denitrogenation method of sewage treatment plant is the AO techniques in activated sludge process, i.e. Anoxic/Aerobic method, is used
Mixed-liquor return and the method for anoxic pond stirring are realized.Under normal conditions, mixed-liquor return is bigger, and the type selecting of blender is by scarce
The shape in oxygen pond limits, and stirring energy consumption is higher, and there are problems that mixed effect is not good enough, needs frequent repair and maintenance.
Therefore, it is necessary to provide a kind of denitrification that can be improved the mixed effect of mixed liquor in anoxic pond, reduce energy consumption
Device.
Utility model content
The problem of the purpose of this utility model is for denitrogenation technology provides a kind of high efficiency, low energy consumption, mixing
Effect is good, reduces the denitrification device of operation energy consumption.
To achieve the goals above, the utility model provides a kind of denitrification device, including：
Aerobic tank, the aerobic tank is for containing nitrification liquid；
Anoxic pond, the anoxic pond are used to contain the mixed liquor of nitric wastewater and nitrification liquid；
The water inlet of nitrification liquid reflux pump, the nitrification liquid reflux pump is connected to the aerobic tank, the nitrification liquid reflux
The water outlet of pump is connected to outlet pipe；
Water distributor, the water distributor are arranged in the anoxic pond, including interconnected water distribution supervisor and a plurality of water distribution
Branch pipe, the water distribution supervisor are connected to the outlet pipe, and apopore is equipped on every water distribution branch pipe.
Preferably, the water inlet of the nitrification liquid reflux pump is connected to by suction hose with the aerobic tank.
Preferably, the outlet pipe is connected to from the top of anoxic pond with water distribution supervisor.
Preferably, the water distribution supervisor is arranged as annular, is arranged in the bottom of the anoxic pond, a plurality of water distribution branch pipe
It is laid in the centre of the annular.
Preferably, the median plane both sides for being set to the water distribution branch pipe that the apopore interlocks.
Preferably, the angle between the axis of the apopore and the anoxic pond bottom surface is 35 °~55 °.
Preferably, the water distribution supervisor is arranged as rectangle.
Preferably, a plurality of water distribution branch pipe is arranged in parallel between the opposite side of the rectangle.
Preferably, a diameter of 15-25mm of the apopore.
Preferably, the water distribution supervisor and/or the water distribution branch pipe are made of hard polyvinyl chloride.
The beneficial effects of the utility model are：
1, this denitrification device is the device for mixed-liquor return in AO techniques, using nitrification liquid reflux pump by aerobic tank
Interior nitrification liquid is pumped by outlet pipe in the main water distributor of anoxic pond, and water distribution supervisor is connected to water distribution branch pipe, and water distribution branch pipe is equal
It is even to be arranged in anoxic pond, apopore is equipped on every water distribution branch pipe, nitrification liquid is flowed out from apopore, is evenly distributed to anoxic
In pond, the perturbation action of water is strengthened, is come into full contact with the organic matter in the nitric wastewater in anoxic pond, anti-nitration reaction occurs
To achieve the purpose that denitrogenation, realize nitrogen emission compliance in water, the denitrification device have it is simple in structure, easy for installation,
The advantage that operating cost is low, maintenance management facilitates.
2, nitrification liquid reflux pump provides power for the reflux of nitrification liquid, and water distribution supervisor's arrangement is circular layout in the bottom of anoxic pond
Portion, a plurality of water distribution branch pipe be laid in annular centre, apopore interlock the median plane both sides for being set to branch pipe, make nitrification liquid with
Organic matter in anoxic pond preferably contacts, and stirs sludge blanket, is conducive to the progress of anti-nitration reaction, has good mixing effect,
Prevent the effect of sludgd deposition.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
The utility model exemplary embodiment is described in more detail in conjunction with the accompanying drawings, the utility model it is above-mentioned
And other purposes, feature and advantage will be apparent.Wherein, in the exemplary embodiment, identical reference label is logical
Chang represents same parts.
Fig. 1 shows the structural schematic diagram of the denitrification device according to the utility model one embodiment.
Reference sign：
1, aerobic tank；2, anoxic pond；3, nitrification liquid reflux pump；4, outlet pipe；5, water distribution is responsible for；6, water distribution branch pipe；7, it inhales
Water pipe.
Specific implementation mode
Preferred embodiments of the present invention are described in more detail below.Although the following describe the utility model
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the utility model without the implementation that should be illustrated here
Mode is limited.On the contrary, these embodiments are provided so that the utility model is more thorough and complete, and can be by this
The range of utility model is completely communicated to those skilled in the art.
Include according to a kind of denitrification device of the utility model embodiment：
Aerobic tank, aerobic tank is for containing nitrification liquid；Anoxic pond, anoxic pond are used to contain the mixed of nitric wastewater and nitrification liquid
Close liquid；The water inlet of nitrification liquid reflux pump, nitrification liquid reflux pump is connected to aerobic tank, the water outlet of nitrification liquid reflux pump and water outlet
Pipe is connected to；Water distributor, water distributor are arranged in anoxic pond, including interconnected water distribution supervisor and a plurality of water distribution branch pipe, water distribution
Supervisor is connected to outlet pipe, and apopore is equipped on every water distribution branch pipe.
Nitrification liquid reflux pump provides power for the reflux of nitrification liquid, by nitrification liquid reflux pump by nitrification liquid from aerobic tank (O
Pond) anoxic pond (ponds A) is flowed back into, nitrification liquid is evenly distributed to anoxic pond by water distribution supervisor and water distribution branch pipe, with nitric wastewater
It comes into full contact with mixing, anti-nitration reaction occurs, to achieve the purpose that denitrogenation, wherein nitric wastewater includes organic matter and always
Nitrogen, i.e., various forms are inorganic in water and organic nitrogen.
This denitrification device is suitable for following denitrification processing unit：1, industrial wastewater small-scale, total nitrogen content is high；
What 2, biochemical unit needed to increase anoxic pond puies forward mark improvement project, or the anoxic pond that installation blender is difficult；3, section is required
About investment, reduction operating cost and non-maintaining engineering.
Preferably, the water inlet of nitrification liquid reflux pump is connected to by suction hose with aerobic tank, is used for nitrification liquid
It is transported to anoxic pond from aerobic tank.
Preferably, outlet pipe is connected to from the top of anoxic pond with water distribution supervisor, will be in outlet pipe using gravity
Nitrification liquid flows into water distribution supervisor.
Preferably, water distribution supervisor is arranged as annular, is arranged in the bottom of anoxic pond, a plurality of water distribution branch pipe is laid in
The centre of annular, is conducive to nitrification liquid and is preferably connect with organic matter.
Specifically, the bottom for being arranged in anoxic pond of water distribution branch pipe has the function that sludge blanket rolls in anoxic pond, a side
Face prevents sludgd deposition, the nitrogen that another aspect denitrification generates from constantly rising, so that nitrogen is left sewage as early as possible, make denitrification
Reaction is lasting to be carried out, and reaction equation is：NO2 -+ 3H (electronics donor-organic matter) → 0.5N2↑+H2O+OH-And NO3 -+ 5H (electronics
Donor-organic matter) → 0.5N2↑+2H2O+OH-。
Preferably, the median plane both sides for being set to water distribution branch pipe that apopore interlocks, make nitrification liquid from apopore
It evenly spreads in anoxic pond.
Preferably, the angle between the axis of apopore and anoxic pond bottom surface is 35 °~55 °, utilizes anoxic pond
Base sludge layer seethes, and nitrification liquid is made preferably to be contacted with organic matter.
Specifically, the angle between the axis of apopore and anoxic pond bottom surface is 45 °.
Preferably, water distribution supervisor is arranged as rectangle.
Preferably, a plurality of water distribution branch pipe is arranged in parallel between the opposite side of rectangle, makes nitrification liquid from water outlet
Hole is evenly spread in anoxic pond.
Preferably, a diameter of 15-25mm of apopore.
Preferably, water distribution supervisor and/or water distribution branch pipe are made of hard polyvinyl chloride, improve nitrification liquid in water distribution branch
Mobility in pipe.
Embodiment
Fig. 1 shows the structural schematic diagram of the denitrification device according to the utility model one embodiment.
As shown in Figure 1, according to a kind of denitrification device of the present embodiment, including：
Aerobic tank 1, aerobic tank 1 is for containing nitrification liquid；Anoxic pond 2, anoxic pond 2 is for containing nitric wastewater and nitrification liquid
Mixed liquor；The water inlet of nitrification liquid reflux pump 3, nitrification liquid reflux pump 3 is connected to by suction hose 7 with aerobic tank 1, and nitrification liquid returns
The water outlet of stream pump 3 is connected to outlet pipe 4；Water distributor, water distributor are arranged in anoxic pond 2, including interconnected water distribution master
Pipe 5 and a plurality of water distribution branch pipe 6, water distribution supervisor 5 are connected to outlet pipe 4, and apopore is equipped on every water distribution branch pipe 6.
Outlet pipe 4 is connected to from the top of anoxic pond 2 with water distribution supervisor 5, and water distribution supervisor 5 is arranged as annular, is arranged in anoxic
The bottom in pond 2, a plurality of water distribution branch pipe 6 are laid in the centre of annular, the median plane two for being set to water distribution branch pipe 6 that apopore interlocks
Side, the angle between 2 bottom surface of axis and anoxic pond of apopore is 45 °, a diameter of 15-25mm of apopore.
Water distribution supervisor 5 is arranged as rectangle, and a plurality of water distribution branch pipe 6 is arranged in parallel between the opposite side of rectangle, water distribution master
Pipe 5 and/or water distribution branch pipe 6 are made of hard polyvinyl chloride.
When carrying out nitrate combined sewage denitrogenation processing using the denitrification device of the present embodiment, nitrification liquid reflux pump 3 will
Nitrification liquid promotes the suction hose 7 passed sequentially through to anoxic pond 2 in aerobic tank 1, nitrification liquid reflux by outlet pipe 4 from aerobic tank 1
Nitrification liquid is transported in water distribution supervisor 5 and the water distribution branch pipe 6 of anoxic pond bottom by pump 3 and outlet pipe 4, and nitrification liquid passes through water distribution branch
Apopore on pipe 6 is evenly distributed to anoxic pond bottom, and nitrification liquid is sufficiently mixed with the organic matter in nitric wastewater from bottom to top
Reaction, stirs sludge blanket, prevents sludgd deposition, be conducive to the progress of nitration reaction.
The embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is also not necessarily limited to disclosed embodiment.Without departing from the scope and spirit of embodiment described, for this technology
Many modifications and changes will be apparent from for the those of ordinary skill in field.
Claims (10)
1. a kind of denitrification device, which is characterized in that including：
Aerobic tank, the aerobic tank is for containing nitrification liquid；
Anoxic pond, the anoxic pond are used to contain the mixed liquor of nitric wastewater and nitrification liquid；
The water inlet of nitrification liquid reflux pump, the nitrification liquid reflux pump is connected to the aerobic tank, the nitrification liquid reflux pump
Water outlet is connected to outlet pipe；
Water distributor, the water distributor are arranged in the anoxic pond, including interconnected water distribution supervisor and a plurality of water distribution branch pipe,
The water distribution supervisor is connected to the outlet pipe, and apopore is equipped on every water distribution branch pipe.
2. denitrification device according to claim 1, which is characterized in that the water inlet of the nitrification liquid reflux pump passes through suction
Water pipe is connected to the aerobic tank.
3. denitrification device according to claim 1, which is characterized in that the outlet pipe from the top of anoxic pond with it is described
Water distribution supervisor's connection.
4. denitrification device according to claim 1, which is characterized in that the water distribution supervisor is arranged as annular, is arranged in
The bottom of the anoxic pond, a plurality of water distribution branch pipe are laid in the centre of the annular.
5. denitrification device according to claim 1, which is characterized in that the apopore interlocked is set to the water distribution
The median plane both sides of branch pipe.
6. denitrification device according to claim 5, which is characterized in that the axis of the apopore and the anoxic pond bottom
Angle between face is 35 °~55 °.
7. denitrification device according to claim 1, which is characterized in that the water distribution supervisor is arranged as rectangle.
8. denitrification device according to claim 7, which is characterized in that a plurality of water distribution branch pipe it is arranged in parallel in
Between the opposite side of the rectangle.
9. denitrification device according to claim 1, which is characterized in that a diameter of 15-25mm of the apopore.
10. denitrification device according to claim 1, which is characterized in that the water distribution supervisor and/or water distribution branch pipe are by hard
Polyvinyl chloride is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289760.2U CN208055014U (en) | 2018-03-01 | 2018-03-01 | Denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289760.2U CN208055014U (en) | 2018-03-01 | 2018-03-01 | Denitrification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208055014U true CN208055014U (en) | 2018-11-06 |
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ID=63991029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820289760.2U Active CN208055014U (en) | 2018-03-01 | 2018-03-01 | Denitrification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683194A (en) * | 2021-08-18 | 2021-11-23 | 石横特钢集团有限公司 | Method for bright reflux of nitrifying liquid |
| CN116040839A (en) * | 2022-12-08 | 2023-05-02 | 广州华科环保工程有限公司 | Sewage treatment tank capable of rapidly removing nitrogen and phosphorus |
-
2018
- 2018-03-01 CN CN201820289760.2U patent/CN208055014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683194A (en) * | 2021-08-18 | 2021-11-23 | 石横特钢集团有限公司 | Method for bright reflux of nitrifying liquid |
| CN116040839A (en) * | 2022-12-08 | 2023-05-02 | 广州华科环保工程有限公司 | Sewage treatment tank capable of rapidly removing nitrogen and phosphorus |
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