CN118026409B - Anaerobic ammonia oxidation coupling sulfur autotrophic denitrification wastewater denitrification system - Google Patents
Anaerobic ammonia oxidation coupling sulfur autotrophic denitrification wastewater denitrification system Download PDFInfo
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- CN118026409B CN118026409B CN202410433381.6A CN202410433381A CN118026409B CN 118026409 B CN118026409 B CN 118026409B CN 202410433381 A CN202410433381 A CN 202410433381A CN 118026409 B CN118026409 B CN 118026409B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 178
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 32
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 27
- 239000011593 sulfur Substances 0.000 title claims abstract description 27
- 230000001651 autotrophic effect Effects 0.000 title claims abstract description 23
- 230000003647 oxidation Effects 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 title claims description 6
- 238000010168 coupling process Methods 0.000 title claims description 6
- 238000005859 coupling reaction Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 215
- 230000000903 blocking effect Effects 0.000 claims description 70
- 241000894006 Bacteria Species 0.000 claims description 50
- 238000004891 communication Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 abstract description 50
- 241000233866 Fungi Species 0.000 abstract description 26
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 4
- 238000000926 separation method Methods 0.000 abstract 4
- 230000001580 bacterial effect Effects 0.000 abstract 2
- 238000000855 fermentation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000010992 reflux Methods 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The application belongs to the technical field of nitrogen-containing wastewater treatment, and particularly relates to a wastewater denitrification system of anaerobic ammonia oxidation coupled sulfur autotrophic denitrification. This wastewater denitrification system includes anaerobic ammonia oxidation reaction equipment, anaerobic ammonia oxidation reaction equipment includes the waste water pipeline and throws the fungus device, throw the fungus device and including throwing fungus container and pressure release pipeline, be equipped with the elasticity separation piece in throwing the fungus container, the space separation in the fungus container is thrown into the intake chamber and throw the fungus chamber, be equipped with on the fungus container and be used for the bacterial suction mouth that is linked together with the storage fungus container, the bacterial suction mouth extends to throwing the fungus chamber, waste water pipeline and pressure release pipeline are linked together with intake chamber on-off respectively, throw fungus chamber and waste water pipeline on-off and be linked together, the elasticity separation piece can be under the effect of the water of getting into the intake chamber along the direction that is close to throwing the fungus chamber activity, the elasticity separation piece can be under the elasticity effect of self along the direction that is close to the intake chamber activity. The anaerobic fermentation device can solve the problem of inconvenient operation when anaerobic bacteria are added in a manual dumping mode.
Description
Technical Field
The application belongs to the technical field of nitrogen-containing wastewater treatment, and particularly relates to a wastewater denitrification system of anaerobic ammonia oxidation coupled sulfur autotrophic denitrification.
Background
With the rapid development of industry, high-concentration nitrogen-containing wastewater is discharged into water body to seriously harm human health and ecological environment, so that the wastewater is required to be discharged into water body after nitrogen in the wastewater is removed.
The related technology adopts an anaerobic ammonia oxidation coupling sulfur autotrophic denitrification system to treat wastewater, combines anaerobic ammonia oxidation and a sulfur autotrophic denitrification process, removes ammonia nitrogen and nitrous in water through anaerobic ammonia oxidation, removes nitrate produced by anaerobic ammonia oxidation through sulfur autotrophic denitrification, and can be used as a reaction matrix for sulfur autotrophic denitrification by metabolic products of the anaerobic ammonia oxidation so as to realize high-efficiency denitrification.
In the related art, anaerobic ammoxidation consumes a large amount of anaerobic bacteria, and therefore anaerobic bacteria are added to the denitrification system, which is usually performed by manually dumping, and is inconvenient to operate.
Disclosure of Invention
The embodiment of the application aims to provide a wastewater denitrification system of anaerobic ammonia oxidation coupled sulfur autotrophic denitrification, which can solve the problem of inconvenient operation when anaerobic bacteria are added in a manual dumping mode.
In order to solve the technical problems, the application is realized as follows:
The embodiment of the application provides a wastewater denitrification system of anaerobic ammonia oxidation coupling sulfur autotrophic denitrification, which comprises anaerobic ammonia oxidation reaction equipment and sulfur autotrophic denitrification equipment which are sequentially connected, wherein the anaerobic ammonia oxidation reaction equipment comprises an equipment body, a wastewater pipeline and a bacteria feeding device, one end of the wastewater pipeline is communicated with the equipment body, the other end of the wastewater pipeline is communicated with a wastewater storage device,
The fungus throwing device comprises a fungus throwing container and a pressure release pipeline, an elastic blocking piece is arranged in the fungus throwing container, the elastic blocking piece divides the space in the fungus throwing container into a water inlet cavity and a fungus throwing cavity, a fungus sucking opening is arranged on the fungus throwing container, the fungus sucking opening extends to the fungus throwing cavity and is used for being communicated with a fungus storage container, a waste water pipeline and the pressure release pipeline are respectively communicated with the water inlet cavity in an on-off manner, the fungus throwing cavity is communicated with the waste water pipeline in an on-off manner,
The elastic blocking piece can move along the direction close to the bacteria feeding cavity under the action of the water body entering the water inlet cavity, and the elastic blocking piece can move along the direction close to the water inlet cavity under the elastic action of the elastic blocking piece.
When the wastewater denitrification system provided by the embodiment of the application is used, the bacteria absorbing port is communicated with the bacteria storage container, the specific working process is as follows, the water inlet cavity and the bacteria throwing cavity are controlled to be communicated with the wastewater pipeline, the water inlet cavity is controlled to be cut off from the pressure release pipeline, wastewater in the wastewater pipeline can enter the water inlet cavity at the moment, the wastewater entering the water inlet cavity can impact and extrude the elastic blocking piece, the elastic blocking piece can elastically deform and move along the direction close to the bacteria throwing cavity, so that the volume of the bacteria throwing cavity is compressed, the pressure in the bacteria throwing cavity is increased, and anaerobic bacteria in the bacteria throwing cavity are extruded into the wastewater pipeline, thereby achieving the aim of throwing anaerobic bacteria into anaerobic ammonia oxidation reaction equipment. Therefore, after the wastewater denitrification system provided by the embodiment of the application is adopted, the purpose of throwing anaerobic bacteria into anaerobic ammonia oxidation reaction equipment can be achieved only by controlling the on-off relation between the water inlet cavity and the bacteria throwing cavity and the wastewater pipeline and the on-off relation between the water inlet cavity and the pressure relief pipeline, and the operation is simpler.
Drawings
FIG. 1 is a system diagram of a wastewater denitrification system disclosed in an embodiment of the present application;
FIG. 2 is a schematic diagram showing the connection between the bacteria-feeding device and the waste water pipeline according to the embodiment of the present application;
FIG. 3 is a cross-sectional view showing a part of the construction of a wastewater denitrification system according to an embodiment of the present application;
Fig. 4 is a schematic structural view of a first water deflector according to an embodiment of the present application;
Fig. 5 is a schematic structural view of a second water blocking member according to an embodiment of the present application;
FIG. 6 is a schematic view of a mounting barrel according to an embodiment of the present application;
FIG. 7 is a cross-sectional view showing another partial structure of the wastewater denitrification system according to the embodiment of the application;
FIG. 8 is a schematic diagram illustrating the assembly of the first water deflector, the second water deflector and the mounting cylinder when the pressure relief port is opposite to the pressure relief channel according to the embodiment of the present application;
Fig. 9 is a schematic diagram illustrating assembly among the first water blocking member, the second water blocking member and the mounting barrel when the first through hole and the second through hole are opposite to each other according to the embodiment of the present application.
Reference numerals illustrate:
100. Anaerobic ammoxidation reaction equipment; 200. an equipment body; 210. a backflow water inlet; 220. a first exhaust port; 300. a waste water pipeline; 310. a first pipe section; 320. a second pipe section; 400. a fungus throwing device; 410. a fungus throwing container; 411. an elastic barrier; 4111. an elastic member; 4112. a baffle plate; 412. a water inlet cavity; 413. a fungus feeding cavity; 414. a bacteria absorbing port; 420. a first pipeline; 430. a water delivery line; 431. a pressure relief port; 432. a water pipe; 433. a mounting cylinder; 440. a first water deflector; 441. a water baffle; 4411. a first through hole; 442. an annular wall; 4421. a pressure relief channel; 443. a driving section; 444. a connecting rod; 450. a second water blocking member; 451. a second through hole; 452. avoidance holes; 460. a switch valve; 470. a second pipeline; 471. a first unidirectional conductive structure; 480. a pressure relief pipeline; 500. sulfur autotrophic denitrification equipment; 510. a water outlet; 520. a backflow water outlet; 530. a return water inlet; 540. a second exhaust port; 600. a waste water storage device; 700. a fungus storage container; 800. a third pipeline; 810. a second unidirectional conductive structure; 910. a first return line; 920. and a second return line.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that some, but not all embodiments of the application are described. 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.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The wastewater denitrification system of the anaerobic ammonia oxidation coupled sulfur autotrophic denitrification provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
As shown in fig. 1 to 9, the embodiment of the application discloses a wastewater denitrification system of anaerobic ammonia oxidation coupling sulfur autotrophic denitrification, which comprises an anaerobic ammonia oxidation reaction device 100 and a sulfur autotrophic denitrification device 500 which are sequentially connected, wherein the anaerobic ammonia oxidation reaction device 100 comprises a device body 200, a wastewater pipeline 300 and a bacteria feeding device 400, one end of the wastewater pipeline 300 is communicated with the device body 200, and the other end of the wastewater pipeline 300 is communicated with a wastewater storage device 600. Alternatively, the bodies of the anaerobic ammonia oxidation reaction apparatus 100, the sulfur autotrophic denitrification apparatus 500 and the wastewater storage apparatus 600 may be steel structural members or water tanks made of concrete.
Optionally, the apparatus body 200 is provided with a first air outlet 220 and a reflux water inlet 210, a sulfur granule packed bed can be arranged in the sulfur autotrophic denitrification apparatus 500 to perform sulfur autotrophic denitrification reaction, the sulfur autotrophic denitrification apparatus 500 is provided with a second air outlet 540, a water outlet 510, a reflux water outlet 520 and a reflux water inlet 530, the water outlet 510, the reflux water outlet 520 and the second air outlet 540 are all positioned above the sulfur granule packed bed, and the reflux water inlet 530 is positioned below the sulfur granule packed bed; the return water outlet 520 is communicated with the return water inlet 530 through a first return pipe 910, a first return pump is arranged on the first return pipe 910, the water outlet 510 is communicated with the return water inlet 210 through a second return pipe 920, and a second return pump is arranged on the second return pipe 920. Turning on the first reflux pump shortens the hydraulic residence time of the sulfur autotrophic denitrification device 500 to reduce the sulfur disproportionation degree; and a second reflux pump is started to reflux part of sulfate generated by sulfur autotrophic denitrification to the anaerobic ammonia oxidation reaction equipment 100, and the sulfate type anaerobic ammonia oxidation bacteria are used for degrading the sulfate type anaerobic ammonia oxidation bacteria, so that the concentration of the sulfate in the effluent is reduced, and the low-concentration discharge of the sulfate in the effluent is ensured while the high-efficiency denitrification is realized.
Referring to fig. 2 and 3, the bacteria-throwing device 400 includes a bacteria-throwing container 410 and a pressure release pipeline 480, an elastic blocking member 411 is disposed in the bacteria-throwing container 410, the elastic blocking member 411 divides a space in the bacteria-throwing container 410 into a water inlet chamber 412 and a bacteria-throwing chamber 413, that is, the water inlet chamber 412 is not communicated with the bacteria-throwing chamber 413, a bacteria-sucking port 414 is disposed on the bacteria-throwing container 410, the bacteria-sucking port 414 extends to the bacteria-throwing chamber 413, that is, the bacteria-sucking port 414 is communicated with the bacteria-throwing chamber 413, and the bacteria-sucking port 414 is used for being communicated with the bacteria-storing container 700. Alternatively, the water inlet chamber 412 and the bacteria-feeding chamber 413 may be spaced apart in the axial direction of the bacteria-feeding container 410.
The waste water pipeline 300 and the pressure relief pipeline 480 are respectively communicated with the water inlet cavity 412 in an on-off mode, and the bacteria feeding cavity 413 is communicated with the waste water pipeline 300 in an on-off mode. Optionally, the pressure relief pipeline 480 may be directly connected to the water inlet 412, that is: the pressure relief line 480 is directly connected to the inlet chamber 412; alternatively, the pressure relief line 480 may be directly connected to the first line 420, which is described below, in which case the pressure relief line 480 is in indirect communication with the water inlet chamber 412.
The elastic blocking piece 411 can move along the direction close to the bacteria feeding cavity 413 under the action of the water body entering the water inlet cavity 412, and the elastic blocking piece 411 can move along the direction close to the water inlet cavity 412 under the elastic action of the elastic blocking piece 411.
When the wastewater denitrification system of the embodiment of the application is used, the bacteria absorbing port 414 is required to be communicated with the bacteria storage container 700, and the specific working process is as follows, the water inlet cavity 412 and the bacteria throwing cavity 413 are controlled to be communicated with the wastewater pipeline 300, the water inlet cavity 412 is controlled to be blocked by the pressure release pipeline 480, at the moment, wastewater in the wastewater pipeline 300 can enter the water inlet cavity 412, the wastewater entering the water inlet cavity 412 can impact and extrude the elastic blocking piece 411, the elastic blocking piece 411 can elastically deform and move along the direction close to the bacteria throwing cavity 413, so that the volume of the bacteria throwing cavity 413 is compressed, the pressure in the bacteria throwing cavity 413 is increased, and anaerobic bacteria in the bacteria throwing cavity 413 are extruded into the wastewater pipeline 300, thereby achieving the purpose of throwing anaerobic bacteria into the anaerobic ammonia oxidation reaction equipment 100. After the anaerobic bacteria in the bacteria throwing cavity 413 are extruded, the water inlet cavity 412 and the bacteria throwing cavity 413 are controlled to be cut off from the waste water pipeline 300, the water inlet cavity 412 is controlled to be communicated with the pressure release pipeline 480, the elastic blocking piece 411 moves along the direction close to the water inlet cavity 412 in the process of recovering elastic deformation, so that the volume of the water inlet cavity 412 is compressed, the volume of the bacteria throwing cavity 413 is increased, waste water in the water inlet cavity 412 can be extruded into the pressure release pipeline 480, and anaerobic bacteria in the bacteria storage container 700 can be sucked into the bacteria throwing cavity 413, so that the next throwing is facilitated. Therefore, after the wastewater denitrification system of the embodiment of the application is adopted, the purpose of inputting anaerobic bacteria into the anaerobic ammonia oxidation reaction equipment 100 can be achieved only by controlling the on-off relation between the water inlet cavity 412 and the bacteria inputting cavity 413 and the wastewater pipeline 300 respectively and the on-off relation between the water inlet cavity 412 and the pressure releasing pipeline 480, and the operation is simpler.
According to the embodiment of the application, anaerobic bacteria in the bacteria feeding cavity 413 can be extruded into the waste water pipeline 300 by taking waste water flowing in the waste water pipeline 300 as power, so that an additional power source is not required; in addition, because the adhesiveness of the anaerobic bacteria is strong, the anaerobic bacteria are adsorbed into the bacteria-throwing cavity 413 by the negative pressure suction mode, and the anaerobic bacteria can be prevented from blocking the bacteria-storing container 700. It should be noted that the pressure release line 480 may be connected to the waste water storage device 600 to collect waste water, or may collect waste water using a collection tank.
Optionally, in the wastewater denitrification system according to the embodiment of the application, the third pipeline 800 may be used to communicate the bacteria storage container 700 with the bacteria feeding chamber 413, and the third pipeline 800 may be provided with a second unidirectional conduction structure 810, where the second unidirectional conduction structure 810 is conducted in a direction in which the bacteria storage container 700 extends along the third pipeline 800 toward the bacteria feeding chamber 413, so that anaerobic bacteria can be prevented from being squeezed into the bacteria storage container 700, where the bacteria storage container 700 and the third pipeline 800 may be configured by a user.
In an alternative embodiment, referring to fig. 3 to 9, the water inlet chamber 412 is in communication with the waste water pipe 300 through a first pipe 420, the first pipe 420 includes a water pipe 430, a first water blocking member 440 and a second water blocking member 450, a portion of the first water blocking member 440 and the second water blocking member 450 are disposed in the water pipe 430 and overlap each other, that is, the first water blocking member 440 and the second water blocking member 450 are attached to each other, the first water blocking member 440 and the second water blocking member 450 are attached to an inner circumferential surface of the water pipe 430, a first through hole 4411 is formed in the first water blocking member 440, and a second through hole 451 is formed in the second water blocking member 450. Specifically, the water inlet chamber 412 communicates with the waste water pipe 300 through the water pipe 430, and since the first water blocking member 440 and the second water blocking member 450 are in sealing engagement with the inner circumferential surface of the water pipe 430, waste water can pass through the first water blocking member 440 and the second water blocking member 450 only through the first through hole 4411 and the second through hole 451, respectively.
One end of the first water blocking member 440 is formed with a driving part 443, the driving part 443 is located in the waste water pipe 300, and the driving part 443 can rotate under the action of the water in the waste water pipe 300, that is, the first water blocking member 440 is rotatably disposed in the water pipe 430, so that the first through hole 4411 and the second through hole 451 are opposite or staggered, and the first flow passage between the water inlet chamber 412 and the waste water pipe 300 is conducted or blocked. Alternatively, the driving portion 443 may be a paddle or an impeller, and the driving portion 443 rotates when the driving portion 443 rotates, thereby rotating the entire first water deflector 440.
The specific operation process is as follows, when waste water is conveyed in the waste water pipeline 300, the waste water will impact the driving part 443 to drive the first water baffle 440 to rotate, because the position of the second water baffle 450 in the water conveying pipeline 430 is relatively fixed, the second water baffle 450 will not rotate, the relative position between the first through hole 4411 arranged on the first water baffle 440 and the second through hole 451 arranged on the second water baffle 450 will also change during the rotation process, when the first through hole 4411 is opposite to the second through hole 451, the first through hole 4411 is communicated with the second through hole 451, thus the first runner can be conducted, and the waste water can enter the water inlet cavity 412 at this time; when the first through hole 4411 and the second through hole 451 are dislocated, the solid portion of the second water baffle 450 seals the first through hole 4411, and the solid portion of the first water baffle 440 seals the second through hole 451, so that the first flow passage can be blocked under the combined action of the first water baffle 440 and the second water baffle 450, and the waste water cannot enter the water inlet chamber 412. It can be seen that the present embodiment uses the wastewater flowing in the wastewater pipeline 300 as power, so that the first flow passage is conducted or blocked, and thus no additional power source is needed. Of course, the water pipe 430 may be provided with a first valve, and the first valve may be a pneumatic valve, an electromagnetic valve, or the like.
Alternatively, to facilitate assembling the first water deflector 440 and the second water deflector 450, the water pipe 430 may include the water pipe 432 and the mounting cylinder 433 connected, so that the cylinder diameter of the mounting cylinder 433 may be set larger, and the first water deflector 440 and the second water deflector 450 may be disposed in the mounting cylinder 433, and then the mounting cylinder 433 may be connected to the water pipe 432, so as to facilitate mounting the first water deflector 440 and the second water deflector 450.
Optionally, at least one of the first through hole 4411 and the second through hole 451 extends along the circumference of the water delivery line 430, so that the time for the wastewater to enter the water inlet chamber 412 can be prolonged, thereby increasing the amount of wastewater entering the water inlet chamber 412, so that anaerobic bacteria in the bacteria-feeding chamber 413 are sufficiently squeezed into the wastewater pipeline 300.
In an alternative embodiment, the water pipe 430 is provided with a through pressure relief port 431, the pressure relief pipeline 480 is connected with the pressure relief port 431, the first water baffle 440 is provided with a pressure relief channel 4421 extending to the outer peripheral surface of the first water baffle 440, and the pressure relief channel 4421 can be opposite to or dislocated from the pressure relief port 431 to conduct or intercept the second flow channel between the water inlet cavity 412 and the pressure relief pipeline 480 when the driving part 443 rotates; and in the case where one of the first flow passage and the second flow passage is turned on, the other is shut off. Specifically, the pressure relief line 480 can be in communication with the inlet chamber 412 via a water delivery line 430.
The specific working process is as follows, when waste water is conveyed in the waste water pipeline 300, the waste water will impact the driving portion 443 to drive the first water blocking member 440 to rotate, so that the relative position between the pressure release channel 4421 and the water conveying pipeline 430 disposed thereon will also change, and when the pressure release channel 4421 is opposite to the pressure release opening 431, the pressure release channel 4421 is communicated with the pressure release opening 431, namely: the second flow passage is in communication, and the first through hole 4411 and the second through hole 451 are offset, that is: the first flow passage is blocked, so that the elastic blocking member 411 can push the wastewater in the water inlet chamber 412 into the pressure release pipeline 480; and when the first water guard 440 rotates to a position where the first through hole 4411 is opposite to the second through hole 451, the pressure release channel 4421 is dislocated from the pressure release opening 431, that is: the first flow passage is in communication and the second flow passage is blocked. It can be seen that the present embodiment uses the wastewater flowing in the wastewater pipeline 300 as power, so that the second flow passage is conducted or cut off, and thus no additional power source is needed.
Of course, in addition to the present embodiment, a second valve may be disposed on the pressure relief pipeline 480, and the second valve may be a pneumatic valve, an electromagnetic valve, etc. to control the on-off of the second flow channel; it should be noted that, in the case that the first valve is disposed on the first pipeline 420 and the second valve is disposed on the pressure release pipeline 480, the first valve is located downstream of the second valve, so that the purpose of "the second flow channel is conducted under the condition that the first flow channel is blocked" can be achieved.
Optionally, at least one of the pressure relief port 431 and the pressure relief channel 4421 extends along the circumferential direction of the water delivery pipe 430, so that the time during which the waste water can be discharged can be prolonged, so that the waste water in the water inlet chamber 412 is sufficiently squeezed into the pressure relief pipe 480.
In an alternative embodiment, first water deflector 440 includes a cylindrical portion that is positioned upstream of second water deflector 450, with one end of first water deflector 440 extending through second water deflector 450 and into waste water conduit 300. Specifically, a through relief hole 452 may be formed in the second water deflector 450, and the first water deflector 440 passes through the second water deflector 450 through the relief hole 452; the first water blocking member 440 may include a cylindrical portion, a connection rod 444, and a driving portion 443, both ends of the connection rod 444 being connected to the cylindrical portion and the driving portion 443, respectively, and a portion of the connection rod 444 being located in the escape hole 452.
The cylindrical portion includes a water baffle 441 and an annular wall 442, wherein the water baffle 441 is stacked on the second water baffle 450, the water baffle 441 is provided with a first through hole 4411, and the annular wall 442 is provided with a pressure release channel 4421 penetrating the annular wall 442 along the radial direction. In this embodiment, the annular wall 442 is located upstream of the water baffle 441, and the annular wall 442 may have a larger height, which may increase the height of the pressure release channel 4421, thereby increasing the flow rate of the wastewater entering the pressure release pipeline 480, so as to timely discharge the wastewater in the water inlet chamber 412; and the space within the annular wall 442 may contain and transport wastewater, which may reduce the impact of the annular wall 442 on the ability of the water transport line 430 to transport wastewater. In addition, since the first water baffle 440 is disposed above the second water baffle 450, the second water baffle 450 can also stop and limit the first water baffle 440, so as to prevent the first water baffle 440 from moving downward.
It should be noted that, a limiting portion may be disposed on the first water blocking member 440, and the limiting portion is in limiting fit with the second water blocking member 450 or the water delivery line 430 in the vertical direction, so that the first water blocking member 440 is prevented from floating upwards under the impact of water flow.
Alternatively, the first water stop 440 may have a plate shape or a column shape, and in this case, it may be located not only upstream of the second water stop 450 but also downstream of the second water stop 450, and the pressure release channel 4421 may extend from the top surface of the first water stop 440 to the outer peripheral surface of the first water stop 440.
In an alternative embodiment, referring to fig. 2, the water delivery line 430 is provided with an on-off valve 460, and the on-off valve 460 is located upstream of the first water deflector 440 and the second water deflector 450. In this embodiment, the water pipe 430 is provided with the switch valve 460, and the switch valve 460 is located upstream of the first water blocking member 440 and the second water blocking member 450, so that when the switch valve 460 is in the closed state, even when the first through hole 4411 and the second through hole 451 are communicated, the waste water in the waste water pipe 300 cannot enter the water inlet chamber 412, and thus anaerobic bacteria cannot be put into the waste water pipe 300, that is, after the structure of this embodiment is adopted, anaerobic bacteria can be put into the waste water pipe 300 only when the switch valve 460 is in the open state, and thus, when anaerobic bacteria do not need to be introduced into the anaerobic ammonia oxidation reaction apparatus 100, the switch valve 460 can be closed; when anaerobic bacteria need to be introduced into the anaerobic ammonium oxidation reaction apparatus 100, the on-off valve 460 may be opened.
In the above embodiment, after the anaerobic bacteria in the bacteria-throwing chamber 413 are thrown into the waste water pipeline 300, the number of anaerobic bacteria in the bacteria-throwing chamber 413 is reduced, even no anaerobic bacteria exist, so after the anaerobic bacteria are thrown once, the bacteria-throwing chamber 413 can suck part of anaerobic bacteria in the bacteria-storing container 700 into the bacteria-throwing chamber 413 by using the elastic barrier 411, and in the process, the bacteria-throwing device 400 does not throw anaerobic bacteria into the waste water pipeline 300 any more, which affects the uniformity of throwing anaerobic bacteria, namely: within the preset time range, the period of time when anaerobic bacteria are not put in is longer.
In an alternative embodiment, referring to fig. 1, the number of the bacteria-feeding devices 400 is at least two, and in case that the first flow channel between the water inlet chamber 412 of one of the bacteria-feeding devices 400 and the waste water pipeline 300 is conducted, the first flow channels of the other bacteria-feeding devices 400 are blocked. In this embodiment, the number of the bacteria-adding devices 400 is at least two, and when the first flow channel between the water inlet chamber 412 of one of the bacteria-adding devices 400 and the waste water pipeline 300 is conducted, the steps are as follows: the waste water in the waste water pipeline 300 can enter the water inlet cavity 412, the bacteria-throwing device 400 can throw anaerobic bacteria into the waste water pipeline 300, and the first flow channels of other bacteria-throwing devices 400 are cut off, namely: the wastewater in the wastewater pipeline 300 cannot enter the water inlet chamber 412, and the other bacteria-throwing device 400 cannot throw anaerobic bacteria into the wastewater pipeline 300. As can be seen, the at least two bacteria-throwing devices 400 of the present embodiment do not throw anaerobic bacteria into the waste water pipeline 300 at the same time, but throw anaerobic bacteria into the waste water pipeline 300 in sequence, which can promote uniformity of throwing anaerobic bacteria, namely: within the preset time range, the period of time when anaerobic bacteria are not put in is shorter, and even the period of time when anaerobic bacteria are not put in does not exist. Of course, the number of the bacteria-adding devices 400 may be only one, and the present application is not limited thereto.
In an alternative embodiment, referring to fig. 2, the waste water pipeline 300 includes a first pipe section 310 and a second pipe section 320 connected to each other, the pipe diameter of the first pipe section 310 is larger than that of the second pipe section 320, the water inlet chamber 412 is connected to the first pipe section 310 through a first pipeline 420, and the bacteria feeding chamber 413 is connected to the second pipe section 320 through a second pipeline 470. In this embodiment, the waste water pipeline 300 includes a first pipe section 310 and a second pipe section 320, the pipe diameter of the first pipe section 310 is larger than the pipe diameter of the second pipe section 320, and since the waste water in the waste water pipeline 300 is in a flowing state, the flow rate of the waste water in the first pipe section 310 is smaller, and the flow rate of the waste water in the second pipe section 320 is larger, which causes the waste water to lose larger pressure in the second pipe section 320, that is, the pressure of the waste water in the first pipe section 310 is larger than the pressure of the waste water in the second pipe section 320, and the first pipe section 420 is connected with the first pipe section 310, so that the pressure of the waste water entering the first pipe section 420 is larger, and the elastic blocking member 411 is easier to be pushed to move along the direction close to the bacteria feeding cavity 413. Of course, in addition to the present embodiment, a booster pump may be provided to raise the pressure of the wastewater in the first line 420 without taking the unpowered condition into consideration.
In an alternative embodiment, referring to fig. 2 and 3, the water inlet chamber 412 is in communication with the waste water pipe 300 through a first pipe 420, the junction between the first pipe 420 and the waste water pipe 300 is a first junction, the bacteria feeding chamber 413 is in communication with the waste water pipe 300 through a second pipe 470, and the junction between the second pipe 470 and the waste water pipe 300 is a second junction, and the first junction is located downstream of the second junction. In this embodiment, the first junction is located downstream of the second junction, and the outlet of the second pipeline 470 is located upstream of the inlet of the first pipeline 420, which can make the outlet of the second pipeline 470 further away from the apparatus body 200 of the anaerobic ammonia oxidation reaction apparatus 100, so that the anaerobic bacteria discharged from the outlet of the second pipeline 470 need more time to enter the apparatus body 200, namely: the mixing time of the anaerobic bacteria and the wastewater is longer, so that the mixing uniformity between the anaerobic bacteria and the wastewater can be improved; in addition, when the present embodiment is combined with the scheme that the driving portion 443 is formed at one end of the first water blocking member 440, the driving portion 443 is located at the downstream of the outlet of the second pipeline 470, and the driving portion 443 can rotate under the action of the wastewater, so that the rotating driving portion 443 can agitate anaerobic bacteria in the wastewater, and the uniformity of mixing between the anaerobic bacteria and the wastewater can be further improved. Of course, the first junction may also be located upstream of the second junction, which is not limiting of the application.
And/or, in an alternative embodiment, referring to fig. 2, the bacteria feeding chamber 413 is in communication with the waste water pipeline 300 through a second pipeline 470, where the junction between the second pipeline 470 and the waste water pipeline 300 is a second junction, and an included angle between a conveying direction of the second pipeline 470 at the second junction and a conveying direction of the waste water pipeline 300 at the second junction is an obtuse angle. In this embodiment, the included angle between the conveying direction of the second pipeline 470 at the second junction and the conveying direction of the waste water pipeline 300 at the second junction is an obtuse angle, that is, the included angle between the anaerobic bacteria spraying direction of the second pipeline 470 at the second junction and the waste water flowing direction of the waste water pipeline 300 at the second junction is an obtuse angle, so that the anaerobic bacteria can be dispersed by the waste water, and the anaerobic bacteria and the waste water can be mixed more uniformly. Of course, the included angle may be a right angle or an acute angle, which is not limited by the present application.
In an alternative embodiment, referring to fig. 3, the elastic blocking member 411 includes an elastic member 4111 and a blocking plate 4112, the blocking plate 4112 is in sealing engagement with the inner peripheral surface of the bacteria-feeding container 410, the blocking plate 4112 is slidably disposed in the bacteria-feeding container 410, two ends of the elastic member 4111 are respectively connected to the blocking plate 4112 and the bacteria-feeding container 410, and the elastic member 4111 can drive the blocking plate 4112 to move along a direction approaching the water inlet chamber 412. In this embodiment, the elastic blocking member 411 includes an elastic member 4111 and a blocking plate 4112, the blocking plate 4112 is in sealing engagement with the inner peripheral surface of the bacteria-throwing container 410 and can move in the bacteria-throwing container 410, when the waste water in the waste water pipeline 300 enters the water inlet chamber 412, the waste water pushes the blocking plate 4112 to move away from the water inlet chamber 412, and the blocking plate 4112 can scrape anaerobic bacteria adhered to the inner peripheral surface of the bacteria-throwing container 410 during the movement process, so that not only can the anaerobic bacteria be prevented from blocking the bacteria-throwing container 410, but also the number of anaerobic bacteria thrown into the waste water pipeline 300 can be increased. Of course, the elastic blocking member 411 may also be an elastic valve film, which is fixed inside the bacteria feeding container 410, and the elastic valve film may deform in a direction approaching to the bacteria feeding cavity 413 or the water inlet cavity 412 under the elastic action of the elastic valve film.
In order to prevent waste water in the waste water pipeline 300 from entering the bacteria feeding chamber 413, in an alternative embodiment, referring to fig. 2, the bacteria feeding chamber 413 is in communication with the waste water pipeline 300 through a second pipeline 470, a first unidirectional conduction structure 471 is disposed on the second pipeline 470, and the first unidirectional conduction structure 471 is conducted in a direction that the bacteria feeding container 410 extends along the second pipeline 470 towards the waste water pipeline 300. In this embodiment, the second pipeline 470 is provided with a first unidirectional conducting structure 471, and wastewater in the wastewater pipeline 300 cannot enter the bacteria-throwing cavity 413 through the first unidirectional conducting structure 471, so that anaerobic bacteria in the bacteria-throwing cavity 413 can enter the wastewater pipeline 300 through the first unidirectional conducting structure 471, and the wastewater in the wastewater pipeline 300 can be prevented from entering the bacteria-throwing cavity 413. In the present embodiment, when anaerobic bacteria in the bacteria-feeding chamber 413 are extruded to the first unidirectional conductive structure 471, the second pipeline 470 is connected, and in addition, the second pipeline 470 is disconnected by the first unidirectional conductive structure 471. Of course, in addition to the first unidirectional conduction structure 471 being provided on the second pipeline 470, a third valve may be provided on the second pipeline 470, and the on-off of the second pipeline 470 may be controlled by the third valve, in this case, the third valve needs to be controlled to be turned on when the wastewater enters the water inlet chamber 412, and the third valve needs to be controlled to be turned off when the wastewater does not enter the water inlet chamber 412.
The foregoing embodiments of the present application mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein. The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (8)
1. The anaerobic ammonia oxidation coupling sulfur autotrophic denitrification wastewater denitrification system is characterized by comprising an anaerobic ammonia oxidation reaction device (100) and a sulfur autotrophic denitrification device (500) which are sequentially connected, wherein the anaerobic ammonia oxidation reaction device (100) comprises a device body (200), a wastewater pipeline (300) and a bacteria feeding device (400), one end of the wastewater pipeline (300) is communicated with the device body (200), the other end of the wastewater pipeline (300) is communicated with a wastewater storage device (600),
The bacteria-throwing device (400) comprises a bacteria-throwing container (410) and a pressure release pipeline (480), an elastic blocking piece (411) is arranged in the bacteria-throwing container (410), the space in the bacteria-throwing container (410) is divided into a water inlet cavity (412) and a bacteria-throwing cavity (413) by the elastic blocking piece (411), a bacteria-sucking port (414) is arranged on the bacteria-throwing container (410), the bacteria-sucking port (414) extends to the bacteria-throwing cavity (413), the bacteria-sucking port (414) is used for being communicated with a bacteria-storing container (700), the waste water pipeline (300) and the pressure release pipeline (480) are respectively communicated with the water inlet cavity (412) in an on-off mode, the bacteria-throwing cavity (413) is communicated with the waste water pipeline (300) in an on-off mode,
The elastic blocking piece (411) can move along the direction close to the bacteria feeding cavity (413) under the action of a water body entering the water inlet cavity (412), the elastic blocking piece (411) can move along the direction close to the water inlet cavity (412) under the elastic action of the elastic blocking piece,
The water inlet cavity (412) is communicated with the waste water pipeline (300) in an on-off manner through a first pipeline (420), the first pipeline (420) comprises a water conveying pipeline (430), a first water retaining member (440) and a second water retaining member (450), a part of the first water retaining member (440) and the second water retaining member (450) are arranged in the water conveying pipeline (430) and are mutually overlapped, the first water retaining member (440) and the second water retaining member (450) are attached to the inner peripheral surface of the water conveying pipeline (430), a first through hole (4411) is formed in the first water retaining member (440), a second through hole (451) is formed in the second water retaining member (450),
One end of the first water baffle (440) is provided with a driving part (443), the driving part (443) is positioned in the waste water pipeline (300), the driving part (443) can rotate under the action of a water body in the waste water pipeline (300) so as to enable the first through hole (4411) and the second through hole (451) to be opposite or staggered and conduct or cut off a first flow passage between the water inlet cavity (412) and the waste water pipeline (300),
The water delivery pipeline (430) is provided with a through pressure relief opening (431), the pressure relief pipeline (480) is connected with the pressure relief opening (431), the first water retaining member (440) is provided with a pressure relief channel (4421) extending to the peripheral surface of the first water retaining member,
Under the condition that the driving part (443) rotates, the pressure release channel (4421) can be opposite to or staggered with the pressure release opening (431) so as to conduct or intercept a second flow channel between the water inlet cavity (412) and the pressure release pipeline (480); and in the case where one of the first flow passage and the second flow passage is turned on, the other is shut off.
2. The wastewater denitrification system according to claim 1, wherein the first water deflector (440) comprises a cylindrical portion upstream of the second water deflector (450), one end of the first water deflector (440) extending through the second water deflector (450) and into the wastewater line (300),
The cylindrical part comprises a water baffle (441) and an annular wall (442) which are connected, the water baffle (441) is overlapped on the second water baffle (450), the water baffle (441) is provided with a first through hole (4411), and the annular wall (442) is provided with a pressure relief channel (4421) penetrating through the annular wall (442) along the radial direction.
3. The wastewater denitrification system according to claim 1, wherein the water delivery line (430) is provided with an on-off valve (460), the on-off valve (460) being located upstream of the first water deflector (440) and the second water deflector (450).
4. A wastewater denitrification system according to any one of claims 1-3, wherein the number of bacteria-feeding devices (400) is at least two, and in case of a first flow channel between the water inlet chamber (412) of one of the bacteria-feeding devices (400) and the wastewater pipe (300) being conducted, the first flow channel of the other bacteria-feeding device (400) is cut off.
5. A wastewater denitrification system according to any one of claims 1 to 3, wherein the wastewater pipeline (300) comprises a first pipe section (310) and a second pipe section (320) which are connected, the pipe diameter of the first pipe section (310) is larger than that of the second pipe section (320), the water inlet cavity (412) is connected with the first pipe section (310) through a first pipeline (420), and the bacteria feeding cavity (413) is connected with the second pipe section (320) through a second pipeline (470).
6. A wastewater denitrification system according to any one of claims 1 to 3, wherein the water inlet chamber (412) is in communication with the wastewater pipeline (300) on-off via a first pipeline (420), the junction of the first pipeline (420) and the wastewater pipeline (300) is a first junction, the bacteria feeding chamber (413) is in communication with the wastewater pipeline (300) on-off via a second pipeline (470), the junction of the second pipeline (470) and the wastewater pipeline (300) is a second junction, the first junction is downstream of the second junction; and/or the number of the groups of groups,
The bacteria feeding cavity (413) is communicated with the waste water pipeline (300) in an on-off mode through a second pipeline (470), the joint of the second pipeline (470) and the waste water pipeline (300) is a second joint, and an included angle between the conveying direction of the second joint and the conveying direction of the waste water pipeline (300) is an obtuse angle.
7. A wastewater denitrification system according to any one of claims 1 to 3, wherein the elastic blocking member (411) comprises an elastic member (4111) and a blocking plate (4112), the blocking plate (4112) is in sealing fit with the inner peripheral surface of the bacteria-throwing container (410), the blocking plate (4112) is slidably arranged in the bacteria-throwing container (410), two ends of the elastic member (4111) are respectively connected with the blocking plate (4112) and the bacteria-throwing container (410), and the elastic member (4111) can drive the blocking plate (4112) to move along a direction close to the water inlet cavity (412).
8. A wastewater denitrification system according to any one of claims 1-3, wherein the bacteria-feeding chamber (413) is in on-off communication with the wastewater pipeline (300) through a second pipeline (470), a first unidirectional conducting structure (471) is arranged on the second pipeline (470), and the first unidirectional conducting structure (471) is conducted in a direction that the bacteria-feeding container (410) extends along the second pipeline (470) towards the wastewater pipeline (300).
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