CN113277618A

CN113277618A - Device for improving anaerobic ammonia oxidation denitrification effect and operation stability

Info

Publication number: CN113277618A
Application number: CN202110670005.5A
Authority: CN
Inventors: 孙乙尧
Original assignee: Peking University Shenzhen Graduate School
Current assignee: Peking University Shenzhen Graduate School
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-08-20

Abstract

The invention discloses a device for improving the denitrification effect and the operation stability of anaerobic ammonia oxidation, and relates to the technical field of wastewater treatment. The device comprises a tank body, wherein a filler mesh enclosure is arranged at the lower end of the exhaust port, anaerobic spherical filler is filled in the filler mesh enclosure, a suspension bracket is arranged at the lower end of the filler mesh enclosure, and elastic filler is suspended between an upper bracket and a lower bracket of the suspension bracket. By using the elastic filler, the anaerobic ammonia oxidizing bacteria attached to the elastic filler can effectively remove ammonia nitrogen in the wastewater. Through using the anaerobic spherical filler, the anaerobic ammonia oxidation bacteria attached to the anaerobic spherical filler can further carry out denitrification treatment on the wastewater, the sewage denitrification effect is improved, and the anaerobic spherical filler can also effectively resist the impact of hydraulic load and nitrogen load, so that the anaerobic ammonia oxidation denitrification effect and the operation stability are effectively improved.

Description

Device for improving anaerobic ammonia oxidation denitrification effect and operation stability

Technical Field

The invention belongs to the technical field of wastewater treatment, and particularly relates to a device for improving the denitrification effect and the operation stability of anaerobic ammonia oxidation.

Background

With the improvement of the living standard of human beings, the rapid increase of population and the rapid development of industry, the discharge amount of wastewater is gradually increased, the water environment pollution is increasingly serious, and the nitrogen and phosphorus removal of the wastewater becomes a hot point for the research of experts and scholars at home and abroad. Anammox is a novel biological denitrification technology, and under anaerobic conditions, anammox bacteria use nitrite as an electron acceptor to oxidize ammonia nitrogen into nitrogen. Because the anaerobic ammonium oxidation bacteria are autotrophic bacteria, no additional organic matter is needed to be added as an electron donor, the cost can be saved, and the secondary pollution can be prevented; the anaerobic ammonia oxidation reaction is a near-neutral reaction, and the biological acid production is very low, so that the cost of a neutralizing agent can be saved; the anaerobic ammonium oxidation bacteria grow slowly, the sludge yield is very low, and the sludge treatment cost can be greatly saved.

However, in practical application, the prior art has the problems of insufficient contact between the filler and the wastewater, low reaction efficiency and the like, so that the operation stability is poor and the denitrification treatment effect of the wastewater is poor.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides a device for improving the denitrification effect and the operation stability of anammox, which has the characteristics that the wastewater in the device can be fully and uniformly mixed, so that the contact area with microorganisms is increased, the denitrification effect and the wastewater treatment efficiency of the anammox are improved, and the operation is stable.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an improve anaerobic ammonium oxidation denitrogenation effect and operational stability's device, includes a jar body to and install the delivery port in jar body upper end one side, install the gas vent in jar body upper end, install the inlet tube in jar body lower extreme one side, the lower extreme of jar body is provided with the sludge settling tank, one side of sludge settling tank is provided with sewage pipes, the lower extreme of gas vent is provided with the filler screen panel, the filler screen panel intussuseption is filled with the spherical filler of anaerobism, the lower extreme of filler screen panel is provided with the mounted frame, it has the elastic filler to hang between the last lower carriage of mounted frame.

According to the preferable technical scheme of the device for improving the anaerobic ammonia oxidation denitrification effect and the operation stability, the bearing is arranged in the lower frame of the suspension frame, the outer ring of the bearing is fixedly connected with the suspension frame, and the inner ring of the bearing is fixedly connected with the rotating rod.

According to the preferable technical scheme of the device for improving the anammox denitrification effect and the operation stability, one end of the water inlet pipe is fixedly connected with a water pump, the other end of the water inlet pipe is connected with a water distribution pipe, and the inner side of the water distribution pipe is connected with a narrow pipe.

As the preferable technical scheme of the device for improving the anammox denitrification effect and the operation stability, the port of the water inlet pipe is provided with the rotating wheel, and the rotating wheel is fixedly connected to the outer surface of the rotating rod.

As the preferable technical scheme of the device for improving the anammox denitrification effect and the operation stability, stirring blades are arranged on the surface of the rotating rod.

According to the preferable technical scheme of the device for improving the anaerobic ammonia oxidation denitrification effect and the operation stability, the upper surface of the suspension bracket is in a W-shaped curved surface shape, and the suspension bracket is internally provided with a round hole.

Compared with the prior art, the invention has the beneficial effects that:

(1) by using the elastic filler, the ammonia nitrogen in the wastewater can be preliminarily and effectively removed by the anaerobic ammonia oxidizing bacteria attached to the filler. By using the anaerobic spherical filler, the anaerobic ammonia oxidizing bacteria attached to the anaerobic spherical filler can further treat the wastewater, so that the nitrogen in the wastewater can be further removed. The anaerobic spherical filler can also effectively resist the impact of hydraulic load and nitrogen load, thereby effectively improving the effect of anaerobic ammonia oxidation denitrification and the operation stability, and leading the sludge generated by the wastewater treated by the elastic filler and the anaerobic spherical filler to be precipitated downwards under the action of gravity.

(2) Make the waste water flow into the jar internal through using the water distributor, and the inboard of water distributor is connected with the narrow pipe, because the pipeline thickness of water distributor and narrow pipe is different, just so formed the pressure differential, waste water comes out from the port department of narrow pipe and will produces very big impact force, the impact force is through acting on the runner, make the stirring leaf stir waste water, not only can make the internal waste water concentration of entering jar even, can also make the waste water vortex rise, the area of contact of waste water with elastic packing and filler screen panel has been increased, improve reaction effect.

(3) Can fix the elastic filler in the jar internal through using the mounted frame for the elastic filler reacts with waste water, and the round hole of seting up in the mounted frame can make the mud that elastic filler and waste water produced deposit to the mud settling tank in through the round hole.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a portion of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in the present invention;

FIG. 4 is a schematic view of the suspension structure of the present invention;

in the figure: 1. a tank body; 2. a sludge settling tank; 3. a blowdown line; 4. a water pump; 5. a water inlet pipe; 6. a water outlet; 7. an exhaust port; 8. a mesh enclosure; 9. anaerobic spherical filler; 10. a suspension bracket; 11. an elastic filler; 12. a water distribution pipe; 13. a rotating wheel; 14. stirring blades; 15. a narrow tube; 16. a circular hole; 17. a bearing; 18. and (4) rotating the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an improve anaerobic ammonium oxidation denitrogenation effect and operational stability's device, which comprises a tank body 1, and install the delivery port 6 in 1 upper end one side of the jar body, install gas vent 7 in 1 upper end of the jar body, install inlet tube 5 in 1 lower extreme one side of the jar body, the lower extreme of the jar body 1 is provided with sludge settling tank 2, one side of sludge settling tank 2 is provided with sewage pipes 3, the lower extreme of gas vent 7 is provided with filler screen panel 8, the intussuseption of filler screen panel 8 is filled with anaerobism spherical filler 9, the lower extreme of filler screen panel 8 is provided with mounted frame 10, the elasticity filler 11 has been hung.

In this embodiment, by using the elastic filler 11, the ammonia nitrogen in the wastewater can be primarily and effectively removed by the anammox bacteria attached to the elastic filler. Through using anaerobism spherical filler 9, the anaerobic ammonium oxidation fungus of adhering to on anaerobism spherical filler 9 can further carry out nitrogen removal treatment to waste water, makes waste water denitrification effect promote, and uses anaerobism spherical filler 9 can also effectively resist water load and nitrogen load and strike, makes the mud that the waste water that handles through elastic filler 11 and anaerobism spherical filler 9 produced because the action of gravity is downward deposit.

Specifically, a bearing 17 is arranged in the lower frame of the suspension frame 10, an outer ring of the bearing 17 is fixedly connected with the suspension frame 10, a rotating rod 18 is fixedly connected with an inner ring of the bearing 17, a water pump 4 is fixedly connected with one end of a water inlet pipe 5, a water distribution pipe 12 is connected with the other end of the water inlet pipe 5, a narrow pipe 15 is connected with the inner side of the water distribution pipe 12, a rotating wheel 13 is arranged at the port of the water inlet pipe 5, the rotating wheel 13 is fixedly connected with the outer surface of the rotating rod 18, and a stirring blade 14 is arranged on the.

In this embodiment, waste water flows into the tank body 1 through the water distribution pipe 12, the narrow pipe 15 is connected to the inner side of the water distribution pipe 12, pressure difference is formed due to the fact that the pipe thicknesses of the water distribution pipe 12 and the narrow pipe 15 are different, waste water can generate large impact force when coming out from the port of the narrow pipe 15, and the impact force acts on the rotating wheel 13, so that the stirring blade 14 stirs the waste water, the concentration of the waste water entering the tank body 1 is uniform, the waste water can be made to rise in a vortex mode, the contact area between the waste water and the elastic filler 11 and the filler mesh enclosure 8 is increased, and the reaction effect is improved.

Specifically, the upper surface of the hanger 10 is a W-shaped curved surface, and a circular hole 16 is formed in the hanger 10.

In this embodiment, the suspension bracket 10 is used to fix the elastic filler 11 in the tank 1, so that the elastic filler 11 reacts with the wastewater, and the circular hole 16 formed in the suspension bracket 10 allows the sludge generated by the elastic filler 11 and the wastewater to be deposited in the sludge settling tank 2 through the circular hole 16.

The working principle and the using process of the invention are as follows: when the device works, wastewater is pumped into the water distribution pipe 12 through the matching between the water pump 4 and the water inlet pipe 5 and flows into the narrow pipe 15 through the water distribution pipe 12, the wastewater rushes out from the water inlet pipe 5 to enable the rotating wheel 13 to rotate, the rotating wheel 13 drives the stirring blades 14 to stir the wastewater flowing into the tank body 1 through the rotating rod 18, the wastewater which is whirled up reacts with the elastic filler 11 and the anaerobic spherical filler 9 to enable the wastewater to be subjected to denitrification treatment, the generated nitrogen is discharged through the exhaust port 7, and the treated wastewater is discharged out of the tank body 1 through the water outlet 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an improve anaerobic ammonium oxidation denitrogenation effect and operating stability's device, includes jar body (1) to and install delivery port (6) in jar body (1) upper end one side, install gas vent (7) in jar body (1) upper end, install inlet tube (5) in jar body (1) lower extreme one side, its characterized in that: the lower extreme of jar body (1) is provided with sludge settling tank (2), one side of sludge settling tank (2) is provided with sewage pipes (3), the lower extreme of gas vent (7) is provided with filler screen panel (8), filler screen panel (8) intussuseption is filled with anaerobism spherical filler (9), the lower extreme of filler screen panel (8) is provided with mounted frame (10), it has elastic filler (11) to hang between the last lower carriage of mounted frame (10).

2. The apparatus for improving anammox denitrification effect and operation stability according to claim 1, wherein: a bearing (17) is arranged in the lower frame of the suspension frame (10), the outer ring of the bearing (17) is fixedly connected with the suspension frame (10), and the inner ring of the bearing (17) is fixedly connected with a rotating rod (18).

3. The apparatus for improving anammox denitrification effect and operation stability according to claim 1, wherein: one end of the water inlet pipe (5) is fixedly connected with the water pump (4), the other end of the water inlet pipe (5) is connected with the water distribution pipe (12), and the inner side of the water distribution pipe (12) is connected with the narrow pipe (15).

4. The apparatus for improving anammox denitrification effect and operation stability according to claim 3, wherein: the port department of inlet tube (5) is provided with runner (13), just runner (13) fixed connection is in the surface of bull stick (18).

5. The apparatus for improving anammox denitrification effect and operation stability according to claim 4, wherein: the surface of the rotating rod (18) is provided with a stirring blade (14).

6. The apparatus for improving anammox denitrification effect and operation stability according to claim 1, wherein: the upper surface of the suspension bracket (10) is in a W-shaped curved surface shape, and a round hole (16) is formed in the suspension bracket (10).