CN213265911U - Breed effluent denitrification device - Google Patents
Breed effluent denitrification device Download PDFInfo
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- CN213265911U CN213265911U CN202021516669.3U CN202021516669U CN213265911U CN 213265911 U CN213265911 U CN 213265911U CN 202021516669 U CN202021516669 U CN 202021516669U CN 213265911 U CN213265911 U CN 213265911U
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- diversion trench
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Abstract
The utility model discloses a denitrification device for breeding discharge water, which comprises a nitrification reaction tank, a primary circulation channel, a secondary circulation channel and a denitrification reaction tank; a primary circulation channel is arranged on one side of the nitration reaction tank, the water outlet end of the primary circulation channel is communicated with the nitration reaction tank, a secondary circulation channel is surrounded in the primary circulation channel, the water inlet end of the secondary circulation channel is communicated with the nitration reaction tank, a denitrification reaction tank is surrounded in the secondary circulation channel, and the water outlet end of the secondary circulation channel is communicated with the denitrification reaction tank; a return pipe is communicated between the denitrification reaction tank and the primary circulation channel, and stirring devices are arranged in the nitrification reaction tank and the denitrification reaction tank. A first submersible pump is arranged in the nitration reaction tank and communicated with the secondary circulation channel; and a second submersible pump is arranged in the denitrification reaction tank and is communicated with the return pipe. The utility model discloses make the waste water between nitration pond, the denitrification reaction pond form the second grade circulation, more be favorable to waste water fully to nitrify and the denitrification reaction, the denitrogenation is efficient.
Description
Technical Field
The utility model relates to a sewage biological treatment technical field especially relates to a breed effluent denitrification device.
Background
With the rapid development of the large-scale aquaculture industry, the aquaculture wastewater is more and more polluted, and besides COD, another important index for controlling the water quality is the nitrogen content. On the premise of the development of the industrial society, the problem of water eutrophication is increasingly serious. Therefore, the current research on water treatment technology focuses on the control of nitrogen pollution, and sewage treatment is a process of separating pollutants contained in sewage or converting the pollutants into harmless substances by various methods, thereby purifying the sewage. Wherein, the removal of nitrogen in the sewage is mainly realized by converting the nitrogen in the sewage into nitrate nitrogen by a chemical or biological method, and then converting the nitrate nitrogen into nitrogen for discharge through anoxic denitrification; the unconverted part of nitrogen is discharged with the residual sludge and enters a sludge treatment system. In order to carry out denitrification on sewage to the maximum extent, the retention time of the sewage is generally required to be prolonged, so that the occupied area is large, however, the conventional treatment tank can only carry out one-step reaction, the denitrification effect is not ideal, the period is long, and the efficiency is low. Therefore, a denitrification device for the discharged water of cultivation needs to be designed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a breed effluent denitrification device to solve the problem that above-mentioned prior art exists, make the waste water between nitration pond, the denitrification reaction pond form second grade circulation, more be favorable to waste water fully to nitrify and the denitrification reaction, the denitrogenation is efficient.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a denitrification device for breeding discharge water, which comprises a nitrification reaction tank, a primary circulation channel, a secondary circulation channel and a denitrification reaction tank;
the primary circulation channel is arranged on one side of the nitration reaction tank, the water outlet end of the primary circulation channel is communicated with the nitration reaction tank, the secondary circulation channel is arranged close to the inner side edge of the primary circulation channel in a surrounding manner, the water inlet end of the secondary circulation channel is communicated with the nitration reaction tank, the denitrification reaction tank is arranged close to the inner side edge of the secondary circulation channel, the water outlet end of the secondary circulation channel is communicated with the denitrification reaction tank, and the water inlet end of the primary circulation channel is communicated with an upper-stage treatment station;
a return pipe is communicated between the denitrification reaction tank and the primary circulation channel, and stirring devices are arranged in the nitrification reaction tank and the denitrification reaction tank;
a first submersible pump is arranged in the nitration reaction tank and is communicated with the water inlet end of the secondary circulation channel through a pipeline;
a second submersible pump is arranged in the denitrification reaction tank and is communicated with the return pipe through a pipeline, and the second submersible pump is communicated with a next-stage treatment station through a pipeline;
the primary circulation channel and the secondary circulation channel are stepped circulation channels.
Preferably, the first-stage circulation channel comprises a first diversion trench, a second diversion trench and a third diversion trench, the first diversion trench, the second diversion trench and the third diversion trench are all obliquely arranged, the water outlet end of the first diversion trench is connected with the water inlet end of the second diversion trench, the water outlet end of the second diversion trench is connected with the water inlet end of the third diversion trench, and the heights of the first diversion trench, the second diversion trench and the third diversion trench are sequentially decreased progressively.
Preferably, the second-stage circulation channel includes a fourth diversion trench, a fifth diversion trench and a sixth diversion trench, the fourth diversion trench, the fifth diversion trench and the sixth diversion trench are all obliquely arranged, a water outlet end of the fourth diversion trench is connected with a water inlet end of the fifth diversion trench, a water outlet end of the fifth diversion trench is connected with a water inlet end of the sixth diversion trench, and heights of the fourth diversion trench, the fifth diversion trench and the sixth diversion trench are sequentially decreased progressively.
Preferably, a first water inlet is communicated between the nitration reaction tank and the third diversion trench, the first water inlet is communicated with the water outlet end of the third diversion trench, a first water outlet is communicated between the nitration reaction tank and the fourth diversion trench, the first water outlet is communicated with the water inlet end of the fourth diversion trench, and the first submersible pump extends into the first water outlet through a pipeline.
Preferably, a second water inlet, a second water outlet and a third water outlet are arranged through the side wall of the denitrification reaction tank, and the heights of the second water inlet, the second water outlet and the third water outlet are sequentially increased.
Preferably, the second water inlet is communicated with the water outlet end of the sixth diversion trench, the second water outlet is communicated with the second diversion trench through the return pipe, the third water outlet is communicated with the next-stage treatment station through a pipeline, the second submersible pump is communicated with the third water outlet through a pipeline, and a check valve is arranged in the return pipe.
Preferably, nitrify reaction tank, denitrification reaction tank inner wall corner for the fillet design, agitating unit sets up nitrify reaction tank, denitrification reaction tank inner wall corner.
Preferably, agitating unit includes the roof beam, the rigid coupling has four at least agitator motor on the roof beam, nitrify reaction tank, one of them inner wall corner of denitrification reaction tank set up two at least agitator motor.
The utility model discloses a following technological effect:
the utility model discloses a set up the one-level circulation canal, the second grade circulation canal, and encircle the one-level circulation canal around the second grade circulation canal, the second grade circulation canal encircles the denitrification reaction tank, make last one-level processing station carry and come to waste water and advance to go into the one-level circulation canal, enter the nitrification reaction tank through the third guiding gutter of one-level circulation canal, stir the realization waste water in the circulation flow in the nitrification reaction tank through the equidirectional rotation of the agitator motor of four corners in the nitrification reaction tank inner wall, be favorable to the going on of nitrification reaction, when the water level in the nitrification reaction tank rises to first delivery port, waste water gets into the second grade guiding gutter, through the drainage of second grade guiding gutter, get into the denitrification reaction tank from the sixth guiding gutter, after getting into the denitrification reaction tank, stir the realization waste water in the circulation flow in the denitrification reaction tank through the equidirectional rotation of the agitator, the waste water in the denitrification reaction tank is pumped into the return pipe through the one-way valve by the second submersible pump, so that the waste water flows back into the primary circulation channel again through the return pipe, repeated circulation treatment is continuously carried out until the nitrification and denitrification reaction is fully completed, the waste water can be subjected to multiple nitrification-denitrification-nitrification processes through the repeated circulation treatment, and the high-efficiency denitrification of the waste water can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a top view of a denitrification apparatus for aquaculture discharge water according to the present invention;
fig. 2 is a front view of fig. 1 with the stirring device removed.
The system comprises a nitrification reaction tank 1, a primary circulation channel 2, a secondary circulation channel 3, a denitrification reaction tank 4, a first water inlet 5, a first water outlet 6, a second water inlet 7, a second water outlet 8, a third water outlet 9, a return pipe 10, a beam 12, a stirring motor 13, a first submersible pump 14, a second submersible pump 15, a ball valve 16, a one-way valve 17, a first diversion trench 2.1, a second diversion trench 2.2, a third diversion trench 2.3, a fourth diversion trench 3.1, a fifth diversion trench 3.2 and a sixth diversion trench 3.3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-2, the utility model provides a denitrification device for breeding discharged water, which comprises a nitrification reaction tank 1, a primary circulation channel 2, a secondary circulation channel 3 and a denitrification reaction tank 4;
the primary circulation channel 2 is arranged on one side of the nitration reaction tank 1, the water outlet end of the primary circulation channel 2 is communicated with the nitration reaction tank 1, the secondary circulation channel 3 is arranged close to the inner side edge of the primary circulation channel 2 in a surrounding manner, the water inlet end of the secondary circulation channel 3 is communicated with the nitration reaction tank 1, the denitrification reaction tank 4 is arranged close to the inner side edge of the secondary circulation channel 3, the water outlet end of the secondary circulation channel 3 is communicated with the denitrification reaction tank 4, and the water inlet end of the primary circulation channel 2 is communicated with an upper-stage treatment station;
a return pipe 10 is communicated between the denitrification reaction tank 4 and the primary circulation channel 2, and stirring devices are arranged in the nitrification reaction tank 1 and the denitrification reaction tank 4;
a first submersible pump 14 is arranged in the nitration reaction tank 1, and the first submersible pump 14 is communicated with the water inlet end of the secondary circulation channel 3 through a pipeline;
a second submersible pump 15 is arranged in the denitrification reaction tank 4, the second submersible pump 15 is communicated with the return pipe 10 through a pipeline, and the second submersible pump 15 is communicated with a next-stage treatment station through a pipeline;
the primary circulation channel 2 and the secondary circulation channel 3 are stepped circulation channels.
In a further preferred scheme, the primary circulation channel 2 includes a first diversion trench 2.1, a second diversion trench 2.2 and a third diversion trench 2.3, the first diversion trench 2.1, the second diversion trench 2.2 and the third diversion trench 2.3 are all obliquely arranged, a water outlet end of the first diversion trench 2.1 is connected with a water inlet end of the second diversion trench 2.2, a water outlet end of the second diversion trench 2.2 is connected with a water inlet end of the third diversion trench 2.3, heights of the first diversion trench 2.1, the second diversion trench 2.2 and the third diversion trench 2.3 are sequentially decreased progressively, and wastewater automatically flows down through gravity by decreasing the height progressively.
In a further preferable scheme, the secondary circulation canal 3 includes a fourth guiding gutter 3.1, a fifth guiding gutter 3.2 and a sixth guiding gutter 3.3, the fourth guiding gutter 3.1, the fifth guiding gutter 3.2 and the sixth guiding gutter 3.3 are all obliquely arranged, a water outlet end of the fourth guiding gutter 3.1 is connected with a water inlet end of the fifth guiding gutter 3.2, a water outlet end of the fifth guiding gutter 3.2 is connected with a water inlet end of the sixth guiding gutter 3.3, heights of the fourth guiding gutter 3.1, the fifth guiding gutter 3.2 and the sixth guiding gutter 3.3 are sequentially decreased progressively, and wastewater automatically flows down through gravity by decreasing the height progressively.
In a further preferable scheme, a first water inlet 5 penetrates through the nitrification reaction tank 1 and the third diversion trench 2.3, the first water inlet 5 is communicated with the water outlet end of the third diversion trench 2.3, a first water outlet 6 penetrates through the nitrification reaction tank 1 and the fourth diversion trench 3.1, the first water outlet 6 is communicated with the water inlet end of the fourth diversion trench 3.1, the first submersible pump 14 extends into the first water outlet 6 through a pipeline, and when the wastewater level in the nitrification reaction tank does not reach the first water outlet 5, the wastewater is pumped to the first water outlet 5 by starting the first submersible pump 14, and then enters the secondary circulation channel 3 to continue to realize circulation.
In a further preferable scheme, a second water inlet 7, a second water outlet 8 and a third water outlet 9 are arranged through the side wall of the denitrification reaction tank 4, and the heights of the second water inlet 7, the second water outlet 8 and the third water outlet 9 are sequentially increased.
In a further preferable scheme, the second water inlet 7 is communicated with a water outlet end of the sixth diversion trench 3.3, the second water outlet 8 is communicated with the second diversion trench 2.2 through the return pipe 10, the third water outlet 9 is communicated with a next-stage treatment station through a pipeline, the second submersible pump 15 is communicated with the third water outlet 9 through a pipeline, a one-way valve 17 is arranged in the return pipe 10, the second submersible pump 15 is started to send wastewater in the denitrification reaction tank into the second diversion trench 2.2 through the one-way valve pump 17 by closing the ball valve, nitrification reaction of the wastewater after denitrification is continuously realized, multiple times of circulation and reciprocation are performed to fully perform nitrification-denitrification-nitrification of the wastewater, and after denitrification of the wastewater is completed, the wastewater can be conveyed to a next treatment station for subsequent treatment by opening the ball valve 16.
Further preferred scheme, nitration reaction tank 1, 4 inner wall corners in denitrification reaction tank are the design of radius angle, agitating unit sets up nitration reaction tank 1, 4 inner wall corners in denitrification reaction tank can make waste water circulate more smoothly at nitration reaction tank 1, 4 inner wall corners in denitrification reaction tank through the design of radius angle.
In a further preferred scheme, the stirring device comprises a beam 12, at least four stirring motors 13 are fixedly connected to the beam 12, and at least two stirring motors 13 are arranged at one corner of the inner wall of the nitrification reaction tank 1 and one corner of the denitrification reaction tank 4.
The utility model relates to a breed effluent denitrification device's theory of operation: wastewater of an upper primary treatment station enters a first diversion trench 2.1 of a primary circulation channel 2, enters a second diversion trench 2.2 and a third diversion trench 2.3 through the drainage of the first diversion trench 2.1, the water outlet end of the third diversion trench 2.3 enters a nitrification reaction tank 1 through a first water inlet 5, the wastewater circularly flows in the nitrification reaction tank 1 through the rotation and stirring in the same direction of stirring motors 13 at four corners of the inner wall of the nitrification reaction tank 1, which is beneficial to the nitrification reaction, when the water level in the nitrification reaction tank 1 rises to a first water outlet 6, the wastewater enters a secondary diversion trench, the wastewater enters a denitrification reaction tank 4 through the drainage of a fourth diversion trench 3.1 and a fifth diversion trench 3.2, enters the denitrification reaction tank 4 through a second water inlet 7 from the water outlet end of a sixth diversion trench 3.3.3, and enters the denitrification reaction tank 4, and then circularly flows in the denitrification reaction tank 4 through the rotation and stirring in the same direction of the stirring motors 13 at four corners of the inner wall of the denitrification reaction tank 4, the process is favorable for denitrification reaction, the ball valve 16 is closed, the second submersible pump 15 is started to pump the wastewater in the denitrification reaction tank 4 into the return pipe 10 through the pipeline, and the wastewater is sent into the second diversion trench 2.2 through the one-way valve 17, so that the wastewater flows back into the first-stage circulation channel 2 through the return pipe 10, the repeated circulation treatment is continuously carried out until the nitrification-denitrification-nitrification reaction is fully completed, and after the nitrification-denitrification-nitrification reaction is fully completed, the treated wastewater is conveyed to the next treatment station from the third water outlet 9 through the pipeline through the second submersible pump 15 for subsequent wastewater treatment; when the wastewater in the previous treatment station is less and insufficient to enable the water level in the nitrification reaction tank 1 to reach the first water outlet 6, the wastewater in the nitrification reaction tank 1 can be pumped into the fourth diversion trench 3.1 by the first submersible pump 14 to continue the circulating flow treatment of the wastewater, and the wastewater at a low water level in the nitrification reaction tank 1 can also be subjected to sufficient nitrification-denitrification-nitrification reaction.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. The utility model provides a breed effluent denitrification facility which characterized in that: comprises a nitration reaction tank (1), a primary circulation canal (2), a secondary circulation canal (3) and a denitrification reaction tank (4);
the primary circulation channel (2) is arranged on one side of the nitration reaction tank (1), the water outlet end of the primary circulation channel (2) is communicated with the nitration reaction tank (1), the secondary circulation channel (3) is arranged close to the inner side edge of the primary circulation channel (2) in a surrounding manner, the water inlet end of the secondary circulation channel (3) is communicated with the nitration reaction tank (1), the denitrification reaction tank (4) is arranged close to the inner side edge of the secondary circulation channel (3), the water outlet end of the secondary circulation channel (3) is communicated with the denitrification reaction tank (4), and the water inlet end of the primary circulation channel (2) is communicated with an upper-stage treatment station;
a return pipe (10) is communicated between the denitrification reaction tank (4) and the primary circulation channel (2), and stirring devices are arranged in the nitrification reaction tank (1) and the denitrification reaction tank (4);
a first submersible pump (14) is arranged in the nitration reaction tank (1), and the first submersible pump (14) is communicated with the water inlet end of the secondary circulation channel (3) through a pipeline;
a second submersible pump (15) is arranged in the denitrification reaction tank (4), the second submersible pump (15) is communicated with the return pipe (10) through a pipeline, and the second submersible pump (15) is communicated with a next-stage treatment station through a pipeline;
the primary circulation channel (2) and the secondary circulation channel (3) are stepped circulation channels.
2. The denitrification apparatus for discharged water of aquaculture as claimed in claim 1, wherein: one-level circulation canal (2) includes first guiding gutter (2.1), second guiding gutter (2.2) and third guiding gutter (2.3), first guiding gutter (2.1), second guiding gutter (2.2) and third guiding gutter (2.3) all incline to set up, the play water end of first guiding gutter (2.1) with the end of intaking of second guiding gutter (2.2) links to each other, the play water end of second guiding gutter (2.2) with the end of intaking of third guiding gutter (2.3) links to each other, the height of first guiding gutter (2.1), second guiding gutter (2.2), third guiding gutter (2.3) is steadilyd decrease in proper order.
3. The denitrification apparatus for discharged water of aquaculture as claimed in claim 2, wherein: the secondary circulation canal (3) comprises a fourth diversion trench (3.1), a fifth diversion trench (3.2) and a sixth diversion trench (3.3), wherein the fourth diversion trench (3.1), the fifth diversion trench (3.2) and the sixth diversion trench (3.3) are all obliquely arranged, the water outlet end of the fourth diversion trench (3.1) is connected with the water inlet end of the fifth diversion trench (3.2), the water outlet end of the fifth diversion trench (3.2) is connected with the water inlet end of the sixth diversion trench (3.3), and the heights of the fourth diversion trench (3.1), the fifth diversion trench (3.2) and the sixth diversion trench (3.3) are gradually decreased.
4. The denitrification apparatus for discharged water of aquaculture as claimed in claim 3, wherein: the nitrification reaction tank (1) with it has first water inlet (5) to link up between third guiding gutter (2.3), first water inlet (5) with third guiding gutter (2.3) play water end communicates with each other, nitrification reaction tank (1) with it has first delivery port (6) to link up between fourth guiding gutter (3.1), first delivery port (6) with fourth guiding gutter (3.1) end of intaking communicates with each other, first immersible pump (14) stretch into through the pipeline first delivery port (6).
5. The denitrification apparatus for discharged water of aquaculture as claimed in claim 3, wherein: and a second water inlet (7), a second water outlet (8) and a third water outlet (9) are communicated with the side wall of the denitrification reaction tank (4), and the heights of the second water inlet (7), the second water outlet (8) and the third water outlet (9) are sequentially increased.
6. The denitrification device for the discharged water of aquaculture as claimed in claim 5, wherein: the second water inlet (7) is communicated with the water outlet end of the sixth diversion trench (3.3), the second water outlet (8) is communicated with the second diversion trench (2.2) through the return pipe (10), the third water outlet (9) is communicated with a next-stage treatment station through a pipeline, a ball valve (16) is arranged on the pipeline of the next-stage treatment station, the second submersible pump (15) is communicated with the third water outlet (9) through a pipeline, and a one-way valve (17) is arranged in the return pipe (10).
7. The denitrification apparatus for discharged water of aquaculture as claimed in claim 1, wherein: nitration reaction tank (1), denitrification reaction tank (4) inner wall corner are the design of radius angle, agitating unit sets up nitration reaction tank (1), denitrification reaction tank (4) inner wall corner.
8. The denitrification apparatus for discharged water of aquaculture as claimed in claim 7, wherein: agitating unit includes roof beam (12), the rigid coupling has four at least agitator motor (13) on roof beam (12), nitration reaction pond (1), denitrification reaction pond (4) arbitrary one inner wall corner set up two at least agitator motor (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516669.3U CN213265911U (en) | 2020-07-28 | 2020-07-28 | Breed effluent denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021516669.3U CN213265911U (en) | 2020-07-28 | 2020-07-28 | Breed effluent denitrification device |
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| Publication Number | Publication Date |
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| CN213265911U true CN213265911U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021516669.3U Active CN213265911U (en) | 2020-07-28 | 2020-07-28 | Breed effluent denitrification device |
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|---|---|
| CN (1) | CN213265911U (en) |
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2020
- 2020-07-28 CN CN202021516669.3U patent/CN213265911U/en active Active
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