Filler and anoxic-aerobic integrated device comprising same

Abstract

The utility model discloses a filler and an anoxic and aerobic integrated device comprising the same, the anoxic and aerobic integrated device comprises a treatment tank, an aerobic zone and an anaerobic zone are distributed in the treatment tank in the vertical direction, the aerobic zone is arranged right above the anaerobic zone, and the middle of the aerobic zone is separated by an aeration pipe. The aerobic tank and the anoxic tank are combined into up-and-down integrated equipment, so that the occupied area is greatly reduced and the occupied area of the aerobic tank is saved under the condition that the process efficiency is not influenced, and the integrated sewage treatment device is suitable for sewage treatment engineering with limited building area. And the sludge in the nitrification liquid can fall back to the anoxic zone through the self-gravity of the sludge, so that the biological concentration of the anoxic zone is increased, the sludge amount of the secondary sedimentation tank is reduced, and the energy consumption of a sludge reflux pump is saved.

Description

Technical Field

[0001] The utility model relates to a sewage treatment device, in particular to a filler and an anoxic and aerobic integrated device containing the filler. Background Art

[0002] Water that has lost its original function is simply called sewage. According to its source, it is divided into industrial sewage, domestic sewage, commercial sewage and surface runoff. Sewage treatment is an indispensable part of water resource recycling.

[0003] From the perspective of biological denitrification, the sewage treatment process can be mainly divided into three levels: ammonification, nitrification, and denitrification. In the aerobic pool, protein nitrogen and organic nitrogen in the sewage are converted into ammonia nitrogen by ammonifying bacteria under aerobic conditions, which is called ammonification; it is continuously converted into nitrate nitrogen under the action of nitrate bacteria, which is called nitrification; then in the anoxic pool, under anoxic conditions, the denitrifying bacteria cause the nitrate nitrogen to be reduced to nitrogen gas and overflow from the sewage, which is called anoxic denitrification; after the above three levels are coordinated, a complete denitrification cycle is formed. The anoxic pool and the aerobic pool are two independent pools, which have technical problems such as large space occupation and insufficient biological concentration. Utility Model Content

[0004] In order to overcome the above disadvantages, the purpose of the utility model is to provide a filler and an anoxic aerobic integrated device containing the filler, which greatly reduces the floor space by combining the aerobic tank and the anoxic tank into an upper and lower integrated device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a filler, comprising:

[0006] External adsorption strips, wherein a plurality of the external adsorption strips are provided, a first gap is left between two adjacent external adsorption strips, and the plurality of external adsorption strips are circumferentially arranged to form an outer circle;

[0007] Inner adsorption strips, wherein a plurality of the inner adsorption strips are provided, a second gap is left between two adjacent inner adsorption strips, and the plurality of the inner adsorption strips are circumferentially arranged to form an inner circle;

[0008] The outer circle is sleeved on the inner circle, the inner adsorption strips and the outer adsorption strips are not arranged in parallel, and the inner adsorption strips and the outer adsorption strips are connected at the intersection of the two.

[0009] Further, the filler is a columnar structure with a height range of 400-500 mm and an outer diameter range of 50-60 mm. For example, the height of the filler is 400 mm, 410 mm, 420 mm, 430 mm, 440 mm, 450 mm, 460 mm, 470 mm, 480 mm, 490 mm, 500 mm, and the outer diameter is 50 mm, 52 mm, 54 mm, 55 mm, 56 mm, 58 mm, 60 mm.

[0010] Furthermore, two adjacent outer adsorption strips are arranged in parallel to form the first gap, and the width of the first gap is 5.5-6.5 mm; two adjacent inner adsorption strips are arranged in parallel to form the second gap, and the width of the second gap is 5.5-6.5 mm. Exemplarily, the first gap width is 5.5 mm, 5.7 mm, 5.9 mm, 6.0 mm, 6.1 mm, 6.3 mm, 6.5 mm, and the second gap width is 5.5 mm, 5.7 mm, 5.9 mm, 6.0 mm, 6.1 mm, 6.3 mm, 6.5 mm.

[0011] Furthermore, the inner adsorption strip is a cylinder, and the bottom diameter of the inner adsorption strip is in the range of 2.0 to 2.4 mm; the outer adsorption strip is a cylinder, and the bottom diameter of the outer adsorption strip is in the range of 2.0 to 2.4 mm. Exemplarily, the bottom diameter of the inner adsorption strip is 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm; the bottom diameter of the outer adsorption strip is 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm.

[0012] Further, the number of the inner adsorption strips and the outer adsorption strips is equal, and the number of strips is both in the range of 10 to 20. Exemplarily, the number of the inner adsorption strips or the outer adsorption strips is 10, 12, 14, 15, 16, 18, or 20.

[0013] An anoxic aerobic integrated device comprises the filler as described above.

[0014] Furthermore, it comprises a treatment pool, wherein an aerobic zone and an anaerobic zone are vertically distributed inside the treatment pool, and the aerobic zone is arranged directly above the anaerobic zone, separated by an aeration pipe in the middle.

[0015] Furthermore, it also includes a support member for fixing the filler, wherein the support member is connected to the inner wall of the treatment tank and is vertically arranged to the inner wall of the treatment tank.

[0016] Furthermore, a water distributor is arranged at the bottom of the treatment pool, and the water distributor comprises a water distributor body and a plurality of water distribution holes, and the plurality of water distribution holes are evenly distributed on the upper side of the water distributor body.

[0017] Furthermore, an overflow port is provided at the upper end of the treatment tank.

[0018] The beneficial effects of the utility model are:

[0019] 1) The specific surface area of ​​the filler composed of inner adsorption strips and outer adsorption strips is larger than that of plate soft fillers and elastic fillers, reaching 150-200m 2 / m 3 , because it has a huge surface area for microorganisms to attach and grow, it can also improve the sewage treatment effect. And the life span is longer, reaching 20 to 30 years.

[0020] 2) By combining the aerobic tank and the anoxic tank into an integrated upper and lower equipment, the floor space is greatly reduced without affecting the process efficiency, saving the floor space of the aerobic tank, which is suitable for sewage treatment projects with limited building area.

[0021] 3) The sludge in the nitrification solution can fall back to the anoxic zone by gravity, which increases the biological concentration in the anoxic zone, reduces the amount of sludge in the secondary sedimentation tank, and saves the energy consumption of the sludge return pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a front view of an anoxic aerobic integrated device according to an embodiment of the utility model;

[0025] Figure 2 A front view of a filler according to an embodiment of the utility model;

[0026] Figure 3 for Figure 2 A partial enlarged view of

[0027] Figure 4 This is a top view of a filler according to an embodiment of the present invention.

[0028] In the figure: 1. treatment tank; 2. aerobic zone; 3. aeration pipe; 4. anaerobic zone; 5. water distributor; 6. overflow port; 7. support member; 8. filler; 81. external adsorption strip; 811. first gap; 812. external circle; 82. internal adsorption strip; 821. second gap; 822. internal circle; 9. regulating tank. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] See attached Figure 1 As shown, an anoxic aerobic integrated device in this embodiment includes a treatment pool 1, wherein an aerobic zone 2 and an anaerobic zone 4 are vertically distributed inside the treatment pool 1, and the aerobic zone 2 is arranged directly above the anaerobic zone 4, and is separated in the middle by an aeration pipe 3 provided with micropores. The aeration pipe 3 is connected to a fan located outside the treatment pool 1, and is used to supply oxygen to the aerobic zone 2, increase the dissolved oxygen content in the water, so as to ensure the reproduction of aerobic bacteria, thereby ensuring the efficiency of the aerobic zone 2 in decomposing organic matter.

[0031] In some embodiments, a support member 7 is further included, the support member 7 is connected to the inside of the treatment tank 1, and is vertically arranged with the inner wall of the treatment tank 1, and is used to fix the filler 8 arranged in the aerobic zone 2 through the arrangement of the support member 7. By arranging the filler 8 in the aerobic zone 2, aerobic bacteria for treating sewage can attach and grow, and aerobic bacteria are used to decompose organic matter in the sewage, thereby improving the cleanliness of the sewage.

[0032] In some embodiments, the support member 7 is an annular structure and is arranged circumferentially along the inner wall of the treatment tank 1. The size and shape of the support member 7 are adapted to the horizontal cross-section of the treatment tank 1, and the outer edges of the support member 7 are connected to the inner wall of the treatment tank 1 to increase the contact area between the support member 7 and the inner wall of the treatment tank 1, improve the stability of the support member 7, and further improve the stability of the filler 8 located in the aerobic zone 2.

[0033] See attached Figure 2-4 As shown, in some embodiments, the filler 8 is a hollow mesh structure, which is easy to aerate and sludge to fall back. The height of the filler 8 ranges from 400 to 500 mm, and the outer diameter is 50 to 60 mm. Preferably, the height of the filler 8 is 465 mm, and the outer diameter is 55 mm. The filler 8 is composed of multiple adsorption strips staggered, has good stability, is not easy to deform after long-term use, and has a service life of up to 30 years.

[0034] In some embodiments, the adsorption strips include inner adsorption strips 82 and outer adsorption strips 81, a plurality of outer adsorption strips 81 are provided, two adjacent outer adsorption strips 81 are provided in parallel, and a first gap 811 is left between the two adjacent outer adsorption strips 81, and the plurality of outer adsorption strips 81 are arranged circumferentially to form an outer circle 812. A plurality of inner adsorption strips 82 are provided, two adjacent inner adsorption strips 82 are provided in parallel, and a second gap 821 is left between the two adjacent inner adsorption strips 82, and the plurality of inner adsorption strips 82 are arranged circumferentially to form an inner circle 822. The outer circle 812 is sleeved on the inner circle 822.

[0035] In some embodiments, the inner adsorption strips 82 and the outer adsorption strips 81 are not arranged in parallel, but have intersections, and the inner adsorption strips 82 and the outer adsorption strips 81 intersect to form a plurality of quadrilaterals. The inner adsorption strips 82 and the outer adsorption strips 81 are connected at the intersections to stabilize the structure of the filler 8.

[0036] In some embodiments, the first gap 811 and the second gap 821 have the same width, and the width of the first gap 811 is 5.5-6.5 mm, preferably 6.0 mm. The hollow holes formed by the inner adsorption strip 82 and the outer adsorption strip 81 are diamond-shaped, which increases the porosity of the filler 8 and is conducive to the attachment and growth of aerobic bacteria.

[0037] In some embodiments, the inner adsorption strip 82 is inclined in one direction in the vertical direction, and the inner adsorption strip 82 and the outer adsorption strip 81 are inclined in opposite directions but at the same inclination angle, forming a rhombus that is symmetrical in the vertical direction.

[0038] In some embodiments, the number of inner adsorption strips 82 and outer adsorption strips 81 is equal, and the number of strips is in the range of 10 to 20. The adsorption strips are cylindrical, and the bottom diameter of the adsorption strips ranges from 2.0 to 2.4 mm. Preferably, the number of inner adsorption strips 82 and outer adsorption strips 81 is 16, and the bottom diameter is 2.2 mm. The filler has a large specific surface area, which provides more places for microbial growth and attachment, and the materials used are easy for microorganisms to attach. These microorganisms multiply and accumulate on the mesh tube to form flocs. The layer of organic matter formed by the flocs attached to the fixed bed carrier is called "biofilm". The biofilm can effectively degrade pollutants in sewage to achieve the purpose of reducing various pollutant indicators. These fillers 8 have a huge surface area for microorganisms to attach and grow, which can also improve the treatment effect of sewage. And the microbial film grown on the surface of the filler 8 is collided due to the fluidization of the filler 8.

[0039] In this field, fillers are divided into soft fillers, plate soft fillers and elastic fillers. Soft fillers have a large specific surface area, which can reach 5000m 2 / m 3, but its life is short, only 1-3 years, and it needs to be replaced frequently. Plate soft fillers and elastic fillers have a long life, up to 5-10 years, but the surface area is small, and the specific surface area of ​​semi-soft fillers is 25-150m 2 / m 3 , elastic filler even less than 50m 2 / m 3 The mesh tube filler disclosed in this application has a specific surface area greater than that of plate soft fillers and elastic fillers, reaching 150-200m 2 / m 3 , and the lifespan is longer, reaching 20 to 30 years.

[0040] See attached Figure 1 As shown, in some embodiments, a water distributor 5 is provided in the treatment tank 1, the water distributor 5 is located below the anoxic zone, and the water distributor 5 is connected to the regulating tank 9 located outside the treatment tank 1. The water distributor 5 includes a water distributor 5 body and a plurality of water distribution holes, and the plurality of water distribution holes are evenly distributed on the upper side of the water distributor 5 body. By providing a plurality of water distribution holes on the upper side of the water distributor 5 body, the sewage passing into the water distributor 5 can be more evenly distributed in the treatment tank 1, thereby achieving a better treatment effect.

[0041] In some embodiments, an overflow port 6 is provided on the battery body, and the overflow port 6 is provided at the upper part of the aerobic zone 2 , and the sewage purified by treatment in the anaerobic zone 4 and the aerobic zone 2 overflows from the overflow port 6 .

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A filler, characterized in that: include: External adsorption strips (81), wherein a plurality of the external adsorption strips (81) are provided, a first gap (811) is left between two adjacent external adsorption strips (81), and the plurality of external adsorption strips (81) are arranged in a circumferential direction to form an outer circle (812); An inner adsorption strip (82), wherein a plurality of the inner adsorption strips (82) are provided, a second gap (821) is left between two adjacent inner adsorption strips (82), and the plurality of inner adsorption strips (82) are circumferentially arranged to form an inner circle (822); The outer circle (812) is sleeved on the inner circle (822), the inner adsorption strip (82) and the outer adsorption strip (81) are not arranged in parallel, and the inner adsorption strip (82) and the outer adsorption strip (81) are connected at the intersection thereof.

2. The filler according to claim 1, characterized in that The filler (8) is a columnar structure with a height ranging from 400 to 500 mm and an outer diameter ranging from 50 to 60 mm.

3. The filler according to claim 1, characterized in that The two adjacent outer adsorption strips (81) are arranged in parallel to form the first gap (811), and the width of the first gap (811) is 5.5 to 6.5 mm; the two adjacent inner adsorption strips (82) are arranged in parallel to form the second gap (821), and the width of the second gap (821) is 5.5 to 6.5 mm.

4. The filler according to claim 1, characterized in that The inner adsorption strip (82) is a cylinder, and the bottom surface diameter of the inner adsorption strip (82) ranges from 2.0 to 2.4 mm; the outer adsorption strip (81) is a cylinder, and the bottom surface diameter of the outer adsorption strip (81) ranges from 2.0 to 2.4 mm.

5. The filler according to claim 1, characterized in that The number of the inner adsorption strips (82) and the number of the outer adsorption strips (81) are equal, and the number of strips is in the range of 10 to 20.

6. An anoxic aerobic integrated device, characterized in that: The invention comprises the filler (8) as described in any one of claims 1 to 5.

7. The anoxic aerobic integrated device according to claim 6, characterized in that: The invention comprises a treatment pool (1), wherein an aerobic zone (2) and an anaerobic zone (4) are vertically distributed inside the treatment pool (1), and the aerobic zone (2) is arranged directly above the anaerobic zone (4), and the two zones are separated by an aeration pipe (3).

8. The anoxic aerobic integrated device according to claim 7, characterized in that: A water distributor (5) is arranged at the bottom of the treatment pool (1), wherein the water distributor (5) comprises a water distributor body and a plurality of water distribution holes, wherein the plurality of water distribution holes are evenly distributed on the upper side of the water distributor body.

9. The anoxic aerobic integrated device according to claim 7, characterized in that: It also includes a support member (7) for fixing the filler (8), wherein the support member (7) is connected to the inner wall of the treatment tank (1) and is arranged perpendicular to the inner wall of the treatment tank (1).

10. The anoxic aerobic integrated device according to claim 7, characterized in that: An overflow port (6) is provided at the upper end of the treatment pool (1).

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