CN216303397U

CN216303397U - Short-cut nitrification-anaerobic ammonia oxidation equipment

Info

Publication number: CN216303397U
Application number: CN202121936917.4U
Authority: CN
Inventors: 王思琦; 陈福明; 李贇; 刘淑杰
Original assignee: Qingyan Environmental Technology Co ltd
Current assignee: Qingyan Environmental Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-04-15
Anticipated expiration: 2031-08-17

Abstract

The embodiment of the application provides a short-cut nitrification-anaerobic ammonia oxidation device, which comprises: the device comprises a shell, a water inlet pipeline, a guide cylinder, a three-phase separator and an aeration device; wherein the water inlet pipeline is arranged at the first end in the shell; the guide shell is arranged along the axial direction of the shell; the first end of the guide cylinder is communicated with the water inlet pipeline, and the second end of the guide cylinder is communicated with the first end of the three-phase separator; a carrier is filled in a cavity between the outer wall of the guide cylinder and the inner wall of the shell; the aeration device is arranged in the guide shell. According to the embodiment of the application, the aeration device is arranged in the middle guide cylinder, and double circular flows at the bottom and the top of the device are formed under the action of air lift. The bottom circulation creates an oxygen-limited environment suitable for the existence of ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria, simultaneously realizes the complete mixing of the substrate and microorganisms, and improves the mass transfer efficiency. The top circulation realizes effective separation of sludge, water and gas, avoids loss of biomass, and simultaneously keeps higher sludge concentration in the equipment.

Description

Short-cut nitrification-anaerobic ammonia oxidation equipment

Technical Field

The application relates to the technical field of sewage treatment, in particular to a shortcut nitrification-anaerobic ammonia oxidation device.

Background

As the second economic entity of the world, the annual output of domestic garbage in China is the first in the world, reaches 1.7 hundred million tons, and is increased by 8 to 10 percent each year. Meanwhile, the main garbage treatment modes in China are sanitary landfill and garbage incineration, and garbage can generate a large amount of garbage leachate in the stacking process, and the yield of the garbage leachate can reach 5-28% of the specific gravity of the garbage. The landfill leachate has the characteristics of extremely high organic pollutant concentration, high ammonia nitrogen and salinity and the like, after anaerobic biological treatment, the concentration of organic matters is reduced, but partial organic matters which are difficult to degrade are still contained, the concentration of ammonia nitrogen is increased, the landfill leachate belongs to typical low C/N wastewater, and the treatment difficulty is higher. Therefore, how to effectively treat the continuously generated landfill leachate is a great and urgent problem to be solved.

The short-cut nitrification-anaerobic ammonia oxidation process is a novel efficient, economic and energy-saving biological denitrification process, and is more suitable for denitrification treatment of anaerobic effluent of landfill leachate because 25% of aeration quantity and 60% of carbon source can be saved. However, the existing shortcut nitrification-anaerobic ammonia oxidation process has the problems of low mass transfer efficiency, serious sludge leakage and unstable system, so that the research and development of a novel shortcut nitrification-anaerobic ammonia oxidation device capable of realizing high-efficiency mass transfer and effectively retaining biomass has important significance for the treatment of landfill leachate and the stable operation of the shortcut nitrification-anaerobic ammonia oxidation process.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a shortcut nitrification-anaerobic ammonia oxidation device aiming at the defects of the existing mode and is used for solving the problems of low mass transfer efficiency and poor stability of the shortcut nitrification-anaerobic ammonia oxidation process.

According to an aspect of embodiments of the present application, there is provided a shortcut nitrification-anaerobic ammonia oxidation apparatus including: the device comprises a shell, a water inlet pipeline, a guide cylinder, a three-phase separator and an aeration device;

wherein the water inlet pipeline is arranged at the first end in the shell;

the guide shell is arranged along the axial direction of the shell; the first end of the guide cylinder is communicated with the water inlet pipeline, and the second end of the guide cylinder is communicated with the first end of the three-phase separator;

a carrier is filled in a cavity between the outer wall of the guide cylinder and the inner wall of the shell;

the aeration device is arranged in the guide shell.

Optionally, the apparatus further comprises: the air outlet, the guide plate and the baffle plate;

the air outlet is arranged at the second end of the shell and communicated with the second end of the three-phase separator;

a baffle is disposed about the second end of the three-phase separator;

the inner diameter of the baffle is smaller than the inner diameter of the first end of the three-phase separator;

a gap is arranged between the baffle and the first end of the three-phase separator.

Optionally, a return channel is formed between the baffle and an outer wall of the second end of the three-phase separator.

Optionally, the baffle is of an annular structure, and the annular width of the baffle is 5% to 15% of the diameter of the shell;

the guide plate is of an annular structure, the diameter of the guide plate is 20% -50% of the diameter of the shell, and the height of the guide plate is 15% -40% of the height of the shell.

Optionally, the aeration device is coaxially arranged with the guide cylinder, and the inner wall of the guide cylinder is provided with a hose fixedly connected with the aeration device.

Optionally, the aeration device comprises at least one of a perforated tube aeration device, a micro-pore aeration device, or a jet aeration device.

Optionally, the first end of the housing is provided with an annular aeration turbulator tube.

Optionally, the second end of the housing is provided with a weir and an outlet conduit.

Optionally, the three-phase separator comprises a first structure and a second structure connected to each other; the first structure part is of a cylindrical structure, and the second structure part is of a hollow circular truncated cone structure.

Optionally, the carrier comprises at least one of a polyethylene K3 filler, a polyurethane foam filler, a bio-rope filler, and a polypropylene PP hollow sphere filler.

The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise: through set up aeration equipment in the middle draft tube of equipment, utilize aeration lifting action to form the double circulation at equipment bottom and top, increased the buffer capacity and the stability of system. The bottom circulation creates a stable oxygen-limited environment suitable for the existence of ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria, ensures the activity of microorganisms, simultaneously realizes the complete mixing of the substrate and the microorganisms, forms a sludge-film symbiotic system with higher microorganism concentration, ensures that the microorganisms are fully contacted with raw water, accelerates mass transfer and improves the denitrification efficiency. The top circulation realizes the effective separation of sludge, water and gas, avoids the loss of biomass, ensures the high sludge concentration in the equipment and is beneficial to realizing high-efficiency denitrification.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a short-cut nitrification-anaerobic ammonia oxidation apparatus provided by an embodiment of the present application;

FIG. 2 is a perspective view of one embodiment of a shortcut nitrification-anaerobic ammonia oxidation apparatus provided herein;

FIG. 3 is a second perspective view of a shortcut nitrification-anaerobic ammonia oxidation apparatus according to an embodiment of the present invention;

FIG. 4 is a third perspective view of a shortcut nitrification-anaerobic ammonia oxidation apparatus provided in accordance with an embodiment of the present invention;

FIG. 5 is a fourth perspective view of a shortcut nitrification-anaerobic ammonia oxidation apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a three-phase separator according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a baffle according to an embodiment of the present application.

Description of reference numerals:

1. a housing; 1001. a first end of the draft tube; 1002. a second end of the draft tube; 2. an overflow weir; 3. a baffle; 4. an air outlet; 5. a water outlet pipeline; 6. a three-phase separator; 601. a first end of a three-phase separator; 602. a second end of the three-phase separator; 603. a first structure portion; 604. a second structure portion; 7. a baffle plate; 8. a carrier; 9. a water inlet pipe; 10. a draft tube; 11. an aeration device; 12. annular aeration disturbance pipe.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The inventor of the application researches and discovers that the conventional short-cut nitrification-anaerobic ammonia oxidation equipment cannot effectively play the function of functional microorganisms, and has the problems of uneven mixing, low mass transfer efficiency, serious sludge leakage of the equipment and the like.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.

The embodiment of the present application provides a shortcut nitrification-anaerobic ammonia oxidation apparatus, as shown in fig. 1 to 3, including: the device comprises a shell 1, a water inlet pipeline 9, a guide cylinder 10, a three-phase separator 6 and an aeration device 11; wherein the water inlet pipe 9 is arranged at a first end 1001 inside the housing 1; the guide shell 10 is arranged along the axial direction of the shell; a first end 1001 of the guide shell 10 is communicated with the water inlet pipeline 9, and a second end 1002 of the guide shell 10 is communicated with a first end 601 of the three-phase separator 6; a cavity between the outer wall of the guide cylinder 10 and the inner wall of the shell 1 is filled with a carrier 8; the aeration device 11 is arranged inside the guide shell 10.

In the above solution, the housing 1 and the guide shell 10 may be cylindrical structures, wherein the guide shell 10 is disposed inside the housing 1 along the axial direction of the housing 1. The first end 1001 of the housing 1 and the first end 1001 of the guide shell 10 are located on the same horizontal plane. The first end 1001 of the housing 1 and the first end 1001 of the draft tube 10 may be understood as an end near the bottom of the shortcut nitrification-anaerobic ammonia oxidation apparatus.

The diameter of the guide shell 10 is 20 to 50 percent of the diameter of the shell 1, and the height of the guide shell 10 is 40 to 70 percent of the height of the shell 1.

The first end 1001 of the shell 1 is provided with a water inlet pipe 9, and sewage enters the interior of the shortcut nitrification-anaerobic ammonia oxidation equipment through the water inlet pipe 9. The water inlet pipe 9 is communicated with a first end 1001 of a guide shell 10 in the shortcut nitrification-anaerobic ammonia oxidation equipment.

The first end 1001 of the draft tube 10 is provided with an opening. Therefore, the step of allowing the sewage to enter the interior of the shortcut nitrification-anaerobic ammonia oxidation equipment through the water inlet pipe 9 specifically includes that the sewage enters the bottom of the shell 1 through the water inlet pipe 9 and enters the guide cylinder 10 from the first end 1001 in the shell 1 through the opening of the guide cylinder 10.

Optionally, the aeration device 11 is disposed coaxially with the guide cylinder 10, and the inner wall of the guide cylinder 10 is provided with a hose fixedly connected with the aeration device 11.

Optionally, the aeration device 11 comprises at least one of a perforated tube aeration device, a micro-pore aeration device, or a jet aeration device.

In the above scheme, the aeration device 11 is arranged inside the guide shell 10 and is coaxial with the guide shell 10. The height of the aeration device 11 is located at 1/3-2/3 of the guide shell 10, and the aeration device 11 is at least one of a perforated pipe aeration device, a micropore aeration device or a jet aeration device.

Wherein, the inner wall of draft tube 10 is provided with the hose with aeration equipment 11 fixed connection, and the one end of hose is connected with the second end of draft tube 10, and the other end of hose is connected with aeration equipment 11, and the direction of intercommunication of hose is perpendicular to the horizontal direction.

The aeration device 11 is arranged by adopting a hose with the communication direction vertical to the horizontal direction, the material flow in the guide shell 10 is not influenced, and the position of the aeration device 11 in the guide shell 10 can be adjusted by adjusting the length of the hose.

Specifically, the aeration is to introduce air into the shortcut nitrification-anaerobic ammonia oxidation equipment, maintain the oxygen-limited environment in the equipment, keep the dissolved oxygen suitable for shortcut nitrification of ammonia oxidizing bacteria and not influence the activity of the anaerobic ammonia oxidizing bacteria. In the embodiment of the application, the aeration device 11 is used for realizing double circulation of the equipment and providing an oxygen-limited environment for realizing short-cut nitrification.

The sewage entering the guide shell 10 is fully mixed with the sludge under the action of the aeration device 11. The aeration device 11 is arranged in the guide shell 10, so that the substrate and the microorganisms can be fully mixed, the problems of non-uniform mixing of the substrate and the microorganisms and low mass transfer efficiency are effectively solved, the sludge and the inlet water are fully mixed, the mass transfer is accelerated, and the denitrification efficiency is improved.

The second end 1002 of the draft tube 10 communicates with the first end 601 of the three phase separator 6. The diameter of the guide shell 10 is smaller than the diameter of the bottom of the three-phase separator 6, so that a return channel for mixed liquid exists at the communication position of the guide shell 10 and the three-phase separator 6. It should be noted that the second end 1002 of the draft tube 10 is understood to be the end away from the bottom of the shortcut nitrification-anaerobic ammonia oxidation apparatus.

The mixed liquor in draft tube 10 is split as it passes through second end 1002 of draft tube 10. Specifically, the mixed liquid in the draft tube 10 rises to the communication position between the draft tube 10 and the three-phase separator 6 under the action of the aeration device 11, and a part of the mixed liquid flows back to the bottom of the apparatus from the outside of the draft tube 10 through the communication position between the draft tube 10 and the three-phase separator 6 under the action of gravity and is mixed with the liquid at the bottom of the apparatus. Further, the gas enters the guide shell 10 again under the stripping action of the aeration device 11, and enters the next cycle, which is the bottom circulation process in the embodiment of the application.

Optionally, the carrier 8 comprises at least one of a polyethylene K3 filler, a polyurethane foam filler, a bio-rope filler, and a polypropylene PP hollow sphere filler.

In the above scheme, the cavity between the outer wall of the draft tube 10 and the inner wall of the shell 1 is filled with the carrier 8. The filling rate of the carrier 8 is 20-60%, and the carrier 8 comprises at least one of polyethylene K3 filler, polyurethane foam filler, biological rope filler and polypropylene PP hollow ball filler.

The carrier 8 is used for carrying microorganisms to form a biofilm, and treating the sewage entering the inside of the shell 1. When the mixed liquid flows back to the bottom of the device, the mixed liquid is fully reacted with the microorganism loaded on the carrier 8 suspended between the outer wall of the guide shell 10 and the inner wall of the shell 1.

Optionally, the first end 1001 of the housing 1 is provided with an annular aeration perturbation tube 12.

In the embodiment of the application, as shown in fig. 2 and fig. 3, the shortcut nitrification-anaerobic ammonia oxidation equipment further comprises an annular aeration turbulence pipe 12, wherein the annular aeration turbulence pipe 12 is arranged between the inner wall of the shell 1 and the outer wall of the guide shell 10.

An annular aeration agitation pipe 12 is provided at the bottom of the housing 1. Air is introduced into the shortcut nitrification-anaerobic ammonia oxidation equipment through the annular aeration disturbing pipe 12, so that the sludge at the bottom of the reactor is prevented from being deposited, the microorganisms are promoted to be fully contacted with the sewage, the sewage and the sludge are completely mixed, and the buffer capacity and the stability of the system are improved.

Alternatively, the three-phase separator 6 includes a first structure portion 603 and a second structure portion 604 connected to each other; the first structure portion 603 has a cylindrical structure, and the second structure portion 604 has a hollow circular truncated cone structure.

As shown in fig. 6, the three-phase separator 6 in communication with the guide cylinder 10 includes a first structure portion 603 and a second structure portion 604 connected to each other, wherein the first structure portion 603 has a cylindrical structure, and the second structure portion 604 has a hollow circular truncated cone structure.

The diameter of the first structure portion 603 of the three-phase separator 6 is 10% to 20% of the diameter of the shell 1, the diameter of the bottom of the second structure portion 604 is 85% to 95% of the diameter of the shell 1, and the side wall of the second structure portion 604 forms an included angle of 30 to 45 degrees with the side wall of the shell 1. The height of the three-phase separator 6 is 30% to 60% of the height of the housing 1.

The three-phase separator 6 can effectively realize the three-phase separation of gas, water and sludge; the three-phase separator 6 has two functions: 1. the separation of the gas and the mixed liquid in the equipment is realized, and the influence of the gas on the effluent precipitation effect is reduced; 2. the sludge in the water is separated sufficiently and returned to the bottom of the housing 1 for treatment of the raw water again to maintain a sufficient sludge concentration in the apparatus.

The mixed liquid in the guide shell 10 rises to the communication position of the guide shell 10 and the three-phase separator 6 under the action of the aeration device 11, and a part of the mixed liquid flows back to the bottom of the equipment from the outer side of the guide shell 10 through the communication position of the guide shell 10 and the three-phase separator 6 under the action of gravity and is mixed with the liquid at the bottom of the equipment. The other part of the mixed liquid enters a three-phase separator 6 communicated with a draft tube 10 under the aeration lifting action of an aeration device 11. The mixed liquor first passes through the second structure 604 of the three-phase separator 6 and then continues to pass through the first structure 603 of the three-phase separator 6 under the action of the aeration lift, and further, a second backflow occurs while passing through the second end 602 of the three-phase separator 6.

Alternatively, as shown in fig. 4 and 5, the shortcut nitrification-anaerobic ammonia oxidation apparatus according to the embodiment of the present invention further includes: the air outlet 4, the guide plate 3 and the baffle 7; the gas outlet 4 is arranged at the second end 1002 of the shell 1, and the gas outlet 4 is communicated with the second end 602 of the three-phase separator 6; the baffle 3 is arranged around the second end 602 of the three-phase separator 6; the internal diameter of the baffle 7 is smaller than the internal diameter of the first end 601 of the three-phase separator 6; a gap is provided between the baffle 7 and the first end 601 of the three-phase separator 6.

Optionally, the baffle 7 is of an annular structure, and the annular width of the baffle 7 is 5 to 15 percent of the diameter of the shell 1; the diameter of the baffle 3 is 20% to 50% of the diameter of the housing 1, and the height of the baffle 3 is 15% to 40% of the height of the housing 1.

Optionally, the baffle 3 is of an annular configuration, and a return channel is formed between the baffle 3 and the outer wall of the second end 602 of the three-phase separator 6.

In the above scheme, the baffle 3 is in an annular structure, the diameter of the baffle 3 is 20% to 50% of the diameter of the shell 1, and the height of the baffle 3 is 15% to 40% of the height of the shell 1. The top of the baffle 3 is 2 to 10 cm higher than the second end 602 of the three-phase separator 6.

A baffle 3 is arranged around the second end 602 of the three-phase separator 6, the baffle 3 forming a return channel with the outer wall of the second end 602 of the three-phase separator 6.

The mixed liquid flows back to the bottom of the casing 1 through a return passage formed between the outer wall of the second end 602 of the three-phase separator 6 and the guide plate 3 under the action of gravity. The process of returning to the bottom of the casing 1 passes through a gap between the baffle 7 provided on the inner wall of the casing 1 and the three-phase separator 6.

As shown in fig. 7, the baffle 7 has a ring-shaped structure, and the ring width of the baffle 7 is 5% to 15% of the diameter of the casing 1. The baffle 7 includes a first end 701 and a second end 702.

Wherein, the inner wall of the baffle 7 inclines from two ends to the middle to form an annular structure with a low middle and two high ends. The first end 701 of the baffle 7 is slightly lower than the first end 601 of the three-phase separator 6, so that the sludge generated by separation can smoothly precipitate and flow downwards from the gap, and the problem of sludge deposition is avoided.

The mixed liquid that flows back through the return channel between the three-phase separator 6 and the guide plate 3 flows back through the gap between the baffle 7 and the second end 602 of the three-phase separator 6 along the outer wall of the three-phase separator 6. Further, the mixed liquid is separated into solid and liquid in the gap between the baffle 7 and the second end 602 of the three-phase separator 6.

After the mixed liquid is subjected to solid-liquid separation, sludge flows back to the bottom of the equipment from a gap between the baffle 7 and the second end 602 of the three-phase separator 6 under the action of gravity and is mixed with sewage again to realize biomass interception, so that a sludge-film symbiotic system with higher microorganism concentration is formed.

The mixed liquid flowing back through the second end 602 of the three-phase separator 6 is separated and precipitated to form solid and liquid, wherein the solid is sludge subjected to primary aeration, and the sludge flows back to the bottom of the shell 1 and is mixed with sewage again. Further, the gas enters the guide shell 10 again under the stripping action of the aeration device 11, and enters the next cycle, which is the top circulation process in the embodiment of the application.

Optionally, the second end 1002 of the housing 1 is provided with a weir 2 and an outlet conduit 5.

In the embodiment of the application, the overflow weir 2 and the outlet pipe 5 are arranged at the second end 1002 of the shell 1, and the separated liquid is discharged out of the shortcut nitrification-anaerobic ammonia oxidation equipment from the overflow weir 2 and the outlet pipe 5.

The water outlet pipe 5 may be disposed at a central position of the second end 1002 of the housing 1, and is disposed coaxially with the guide cylinder 10, the aeration device 11, and the three-phase separator 6.

A weir 2 may be provided at a sidewall of the second end 1002 of the housing 1, and the separated liquid overflows the weir 2.

The short-cut nitrification-anaerobic ammonia oxidation equipment provided by the embodiment of the application comprises: the device comprises a shell, a water inlet pipeline, a guide cylinder, a three-phase separator and an aeration device; wherein the water inlet pipeline is arranged at the first end in the shell; the guide shell is arranged along the axial direction of the shell; the first end of the guide cylinder is communicated with the water inlet pipeline, and the second end of the guide cylinder is communicated with the first end of the three-phase separator; a carrier is filled in a cavity between the outer wall of the guide cylinder and the inner wall of the shell; the aeration device is arranged in the guide shell.

According to the embodiment of the application, the guide shell 10 and the three-phase separator 6 which are communicated with each other are arranged in the shell 1, the aeration device 11 is arranged in the guide shell 10, and double bottom and top circular flows are formed in the shortcut nitrification-anaerobic ammonia oxidation equipment under the action of gas lift, so that the loss of biomass is avoided, the high sludge concentration in the equipment is ensured, and the buffering capacity and the stability of the system are also improved. Meanwhile, the substrate and the microorganisms are completely mixed to form a sludge-film symbiotic system with higher microorganism concentration, so that the microorganisms are fully contacted with raw water while biomass interception is realized, a stable oxygen-limited environment suitable for the survival of ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria is created, the activity of the microorganisms is ensured, mass transfer is accelerated, and the denitrification efficiency is improved

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "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 only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A shortcut nitrification-anaerobic ammonia oxidation apparatus, comprising: the device comprises a shell (1), a water inlet pipeline (9), a guide cylinder (10), a three-phase separator (6) and an aeration device (11);

wherein the water inlet pipe (9) is arranged at a first end in the shell (1);

the guide shell (10) is arranged along the axial direction of the shell (1); the first end of the guide cylinder (10) is communicated with the water inlet pipeline (9), and the second end of the guide cylinder (10) is communicated with the first end of the three-phase separator (6);

a cavity between the outer wall of the guide cylinder (10) and the inner wall of the shell (1) is filled with a carrier (8);

the aeration device (11) is arranged inside the guide shell (10).

2. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 1, further comprising: the air outlet (4), the guide plate (3) and the baffle (7);

the air outlet (4) is arranged at the second end of the shell (1), and the air outlet (4) is communicated with the second end of the three-phase separator (6);

the deflector (3) is arranged around the second end of the three-phase separator (6);

the inner diameter of the baffle (7) is smaller than the inner diameter of the first end of the three-phase separator (6);

a gap is arranged between the baffle (7) and the first end of the three-phase separator (6).

3. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 2, wherein a return channel is formed between the baffle (3) and the outer wall of the second end of the three-phase separator (6).

4. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 2, wherein the baffle (7) has an annular structure, and the annular width of the baffle (7) is 5% to 15% of the diameter of the shell (1);

the guide plate (3) is of an annular structure, the diameter of the guide plate (3) is 20% -50% of the diameter of the shell (1), and the height of the guide plate (3) is 15% -40% of the height of the shell (1).

5. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 1, wherein the aeration device (11) is coaxially disposed with the draft tube (10), and a hose fixedly connected with the aeration device (11) is disposed on the inner wall of the draft tube (10).

6. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 1, wherein the aeration device (11) comprises at least one of a perforated pipe aeration device, a micro-pore aeration device, or a jet aeration device.

7. The apparatus for shortcut nitrification-anaerobic ammonia oxidation according to claim 1, wherein the first end of the housing (1) is provided with an annular aeration turbulence tube (12).

8. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 1, wherein the second end of the housing (1) is provided with a weir (2) and an outlet conduit (5).

9. The shortcut nitrification-anaerobic ammonia oxidation apparatus according to claim 1, wherein the three-phase separator (6) comprises a first structure (603) and a second structure (604) connected to each other;

the first structure portion (603) is of a cylindrical structure, and the second structure portion (604) is of a hollow circular truncated cone structure.