Anaerobic ammonium oxidation bacteria enrichment and storage device

Abstract

The utility model provides an anaerobic ammonium oxidation bacteria enrichment and storage device, and belongs to the technical field of sewage treatment devices. An aeration mechanism comprising an aeration disc and an air compressor and a stirring mechanism comprising a stirring motor, a rotating shaft and paddles are arranged, so that the interior of the storage tank is kept in an aerobic state, and anaerobic reaction of anaerobic ammonium oxidation bacteria is avoided; through the arrangement of the gas stripping mechanism comprising the gas stripping pipe, the gas inlet pipe, the liquid inlet pipe and the telescopic pipe, anaerobic ammonium oxidation bacteria at the bottom of the AMX pool can be completely sucked out, no dead angle is left, meanwhile, the problem that the anaerobic ammonium oxidation bacteria are abraded by mechanical damage, and the problem that the anaerobic ammonium oxidation bacteria are ground is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment devices, and in particular relates to an anaerobic ammonia-oxidizing bacteria enrichment and storage device. Background Art

[0002] In order to improve the autotrophic denitrification capacity of sewage treatment plants, sewage treatment plants will enrich anaerobic ammonia-oxidizing bacteria in the anaerobic and anoxic zones of biological pools.

[0003] In the anaerobic bacteria enrichment device of the sewage treatment plant under the existing technology, the anaerobic ammonium oxidizing bacteria particles are heavy and tend to settle at the bottom of the container in the later stage of growth, resulting in uneven aeration. If a sludge pump or a self-priming pump is used to extract the AMX pool, the anaerobic ammonium oxidizing bacteria will be easily ground up. At this time, the concentration of anaerobic ammonium oxidizing bacteria in the container is low, only 6%-15%, making enrichment more difficult. In addition, anaerobic ammonium oxidizing bacteria are prone to anaerobic reactions under anaerobic conditions, resulting in a bad odor. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provides an anaerobic ammonia-oxidizing bacteria enrichment and storage device.

[0005] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0006] An anaerobic ammonia-oxidizing bacteria enrichment and storage device includes an air stripping mechanism, a storage mechanism, and an aeration mechanism; the storage mechanism includes a stirring mechanism and a storage tank; the stirring mechanism includes a stirring motor, a rotating shaft, and a paddle; the stirring motor is fixedly mounted on the top surface of the storage tank, with the output end of the stirring motor facing vertically downward; the output end of the stirring motor passes through the top surface of the storage tank and is fixedly connected to the rotating shaft; the side of the rotating shaft is fixedly connected to the paddle;

[0007] The air lift mechanism includes an air lift pipe, an air inlet pipe and a liquid inlet; the air lift pipe is connected to the storage tank through a telescopic pipe, and the front cross-section of the water outlet at one end of the telescopic pipe extending into the storage tank is an inverted trapezoid; the other end of the air lift pipe is connected to the liquid inlet, and the width-to-height ratio of the front cross-section of the liquid inlet is greater than one; the air inlet pipe is connected to the left side of the air lift pipe.

[0008] Preferably, the aeration mechanism includes an aeration plate and an air compressor. The aeration plate is circular and fixedly connected to the bottom surface of the inner wall of the storage tank. There are exhaust holes in a circular array on the aeration plate. A through hole is provided at the bottom of the aeration plate, and the air compressor is connected to the aeration plate through an aeration pipe passing through the bottom surface of the storage tank and the through hole.

[0009] Preferably, a drainage mechanism is further included, which includes an upper drain outlet and a lower drain outlet. The upper drain outlet is opened at the top of the left side of the storage tank, and the lower drain outlet is opened at the bottom of the left side of the storage tank. Valves are fixedly connected to the sides of the upper drain outlet and the lower drain outlet; a filter is fixedly connected to the inlet of the upper drain outlet.

[0010] Compared with the prior art, the advantages and positive effects of the present invention are:

[0011] The utility model discloses an anaerobic ammonia oxidizing bacteria enrichment and storage device. By arranging an aeration mechanism including an aeration disk and an air compressor and a stirring mechanism including a stirring motor, a rotating shaft and blades, the interior of the storage tank is kept in an aerobic state, so that the anaerobic ammonia oxidizing bacteria will not have an anaerobic reaction. By arranging an air lift mechanism including an air lift pipe, an air inlet pipe, a liquid inlet pipe and a telescopic pipe, all the anaerobic ammonia oxidizing bacteria on the bottom of the AMX tank can be sucked out without leaving any dead corners. At the same time, the wear of the anaerobic ammonia oxidizing bacteria caused by mechanical damage can be effectively solved, and the problem of grinding will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a top view of the aeration plate structure diagram;

[0015] In the above figures, 1. storage tank; 2. stirring motor; 3. rotating shaft; 4. paddle; 5. air lift pipe; 6. air inlet pipe; 7. liquid inlet; 8. telescopic pipe; 9. aeration plate; 10. air compressor; 11. aeration pipe; 12. upper drain outlet; 13. lower drain outlet; 14. valve; 15. filter. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1, as Figure 1 As shown, an anaerobic ammonia-oxidizing bacteria enrichment and storage device of the present application includes an air stripping mechanism, a storage mechanism, and an aeration mechanism; the storage mechanism includes a stirring mechanism and a storage tank 1; the storage tank 1 is a hollow cylinder; the stirring mechanism includes a stirring motor 2, a rotating shaft 3, and a paddle 4; the stirring motor 2 is fixedly mounted on the top surface of the storage tank 1, and the output end of the stirring motor 2 is arranged vertically downward; the output end of the stirring motor 2 passes through the top surface of the storage tank 1 and is fixedly connected to the rotating shaft 3; the side of the rotating shaft 3 is fixedly connected to the paddle 4; the speed of the stirring motor 2 is controlled at 60-100 rpm when it is started;

[0019] The air stripping mechanism includes an air stripping pipe 5, an air inlet pipe 6 and a liquid inlet 7; the air stripping pipe 5 is connected to the storage tank 1 through a telescopic pipe 8, and the front cross-section of the water outlet at one end of the telescopic pipe 8 extending into the storage tank 1 is an inverted trapezoid, and the top surface of the water outlet is a disc, and a circular array of small holes with a diameter of 0.5 mm is provided on the disc. The setting of the small holes effectively reduces the impact of water flow; the other end of the air stripping pipe 5 is connected to the liquid inlet 7, and the aspect ratio of the front cross-section of the liquid inlet 7 is greater than one; the outlet fluid of the air inlet pipe 6 is connected to the left side of the air stripping pipe 5 from the bottom to the top one-third, and the inlet of the air inlet pipe 6 is used to fill with gas; when in use, the opening of the air stripping pipe 5 is larger to facilitate the collection of anaerobic ammonia oxidizing bacteria at the bottom of the AMX pool; the setting of the air stripping mechanism effectively solves the wear of anaerobic ammonia oxidizing bacteria caused by mechanical damage, and there will be no grinding problem; the setting of the telescopic pipe 8 facilitates the movement of the liquid inlet 7, and the continuous change of the liquid inlet 7 can absorb all the anaerobic ammonia oxidizing bacteria at the bottom of the AMX pool without leaving any dead corners;

[0020] The aeration mechanism includes an aeration plate 9 and an air compressor 10. The aeration plate 9 is circular and fixedly connected to the bottom surface of the inner wall of the storage tank 1. The aeration plate 9 has a circular array of exhaust holes. A through hole is opened at the bottom of the aeration plate 9. The air compressor 10 is connected to the aeration plate 9 through the bottom surface of the storage tank 1 and the through hole via an aeration pipe 11. The air compressor 10 provides an air source to the aeration plate 9. The arrangement of the aeration mechanism including the aeration plate 9, the air compressor 10 and the stirring mechanism including the stirring motor 2, the rotating shaft 3 and the blades 4 maintains an aerobic state inside the storage tank 1, so that the anaerobic ammonia-oxidizing bacteria will not have an anaerobic reaction.

[0021] It also includes a drainage mechanism, which includes an upper drain outlet 12 and a lower drain outlet 13. The upper drain outlet 12 is opened at the top of the left side of the storage tank 1, and the lower drain outlet 13 is opened at the bottom of the left side of the storage tank 1. A valve 14 is fixedly connected to the sides of the upper drain outlet 12 and the lower drain outlet 13; a filter screen 15 is fixedly connected to the entrance of the upper drain outlet 12; the upper drain outlet 12 discharges excess water, and the filter screen 15 is set to prevent anaerobic ammonia-oxidizing bacteria from flowing out, and the concentration of anaerobic ammonia-oxidizing bacteria exceeds 60%; the lower drain outlet 13 in the storage tank 1 is the anaerobic ammonia-oxidizing bacteria discharge outlet.

[0022] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An anaerobic ammonium oxidizing bacteria enrichment and storage device, characterized in that: It comprises an air stripping mechanism, a storage mechanism and an aeration mechanism; the storage mechanism comprises a stirring mechanism and a storage tank (1); the stirring mechanism comprises a stirring motor (2), a rotating shaft (3) and a paddle (4); the stirring motor (2) is fixedly mounted on the top surface of the storage tank (1), and the output end of the stirring motor (2) is arranged vertically downward; the output end of the stirring motor (2) passes through the top surface of the storage tank (1) and is fixedly connected to the rotating shaft (3); the side of the rotating shaft (3) is fixedly connected to the paddle (4); The air lift mechanism comprises an air lift pipe (5), an air inlet pipe (6) and a liquid inlet (7); the air lift pipe (5) is connected to the storage tank (1) via a telescopic pipe (8); the front cross-section of the water outlet at one end of the telescopic pipe (8) extending into the storage tank (1) is in the shape of an inverted trapezoid; the other end of the air lift pipe (5) is connected to the liquid inlet (7); the front cross-section of the liquid inlet (7) has an aspect ratio greater than one; the air inlet pipe (6) is connected to the left side of the air lift pipe (5); The aeration mechanism comprises an aeration plate (9) and an air compressor (10), wherein the aeration plate (9) is circular and fixedly connected to the bottom surface of the inner wall of the storage tank (1); the aeration plate (9) has a circular array of exhaust holes; a through hole is provided at the bottom of the aeration plate (9), and the air compressor (10) is connected to the aeration plate (9) through the bottom surface of the storage tank (1) and the through hole via an aeration pipe (11); The invention also includes a drainage mechanism, which includes an upper drainage outlet (12) and a lower drainage outlet (13). The upper drainage outlet (12) is opened at the top of the left side of the storage tank (1), and the lower drainage outlet (13) is opened at the bottom of the left side of the storage tank (1). Valves (14) are fixedly connected to the sides of the upper drainage outlet (12) and the lower drainage outlet (13); and a filter screen (15) is fixedly connected to the inlet of the upper drainage outlet (12).

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