Biological contact oxidation treatment equipment for wastewater

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses wastewater biological contact oxidation treatment equipment, an outer gas pipe body and an inner gas pipe body independently supply gas through a gas supply component, first gas heads are arranged at the upper part of the outer gas pipe body at equal intervals, and the inner gas pipe body is fixedly supported and arranged on the inner side of the outer gas pipe body through second gas heads; the aperture of the first air head is small and can provide stable and reliable aeration and oxygen supply work for the biological membrane in the growth process, the second air head is large in aperture, through periodic intermittent work, the mature biological membrane on the upper portion of the filler carrier plate can be effectively scoured and separated through impact of large bubbles at the end of the growth period of the biological membrane, and therefore the biological membrane can be effectively washed and separated. During installation, the second air head penetrates through the outer air pipe body and is fixedly installed on the installation cylinder base on the upper portion of the inner air pipe body through a screw head structure, the structure is simple, installation is convenient, installation and supporting of the inner air pipe body can be achieved without support combination, disassembly and assembly operation is convenient, and disassembly and assembly convenience is extremely good.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater biological contact oxidation treatment device. Background Technology

[0002] Biological contact oxidation is a biofilm process that falls between activated sludge and biofilter processes. Its key feature is the use of packing material within the tank, with bottom aeration to oxygenate the wastewater and maintaining a flowing state to ensure sufficient contact between the wastewater and the packing material, avoiding the uneven contact issues common in other biological contact oxidation processes. Its basic principle of wastewater purification is the same as that of general biofilm processes: the biofilm adsorbs organic matter in the wastewater, which is then oxidized and decomposed by microorganisms under aerobic conditions, thus purifying the wastewater. Biological contact oxidation combines the advantages of both activated sludge and biofilm processes. Compared to traditional activated sludge and biofilter processes, it offers advantages such as a larger specific surface area, longer sludge age, higher oxygen utilization rate, lower energy consumption, lower sludge production, lower operating costs, and easier equipment operation and maintenance.

[0003] Wastewater purification relies on biological contact oxidation reactions with packing materials. Traditional aeration structures in treatment tanks are mostly single-head structures, which have limited scouring force due to the limited air supply. During the reaction process, due to the growth of biofilm, the scouring effect of the oxygen supply aeration structure in the tank alone cannot effectively separate and detach the biofilm. Sometimes, the biofilm between the packing materials in the tank will become clogged, which will affect the biological oxidation reaction. Therefore, a wastewater biological contact oxidation treatment device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater biological contact oxidation treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater biological contact oxidation treatment device, comprising a treatment tank, wherein a packing plate and an oxygen supply and aeration mechanism are provided inside the treatment tank, and the packing plate is vertically and uniformly installed inside the treatment tank.

[0006] The oxygen supply and aeration mechanism is located below the packing carrier plate. The oxygen supply and aeration mechanism includes an aeration component and an air supply component. The aeration component includes an outer air pipe, an inner air pipe, a first air head, and a second air head. The outer air pipe and the inner air pipe are supplied with air independently through the air supply component. The first air head is evenly installed at equal intervals on the upper part of the outer air pipe. The second air head is connected to the inner air pipe. The inner air pipe is fastened and supported on the inner side of the outer air pipe through the second air head.

[0007] Preferably, a packing support is fixedly installed in the middle of the treatment tank, and multiple packing plates are provided. Several packing plates are uniformly fixed inside the treatment tank at equal intervals through the packing support.

[0008] Preferably, the treatment tank has an inlet on the upper side and an outlet on the lower side, and a sludge collection trough at the bottom, with both sides of the sludge collection trough being sloped.

[0009] Preferably, the above-mentioned air supply component is disposed on the outer side of the treatment tank. The air supply component includes a first fan and a second fan, which are respectively connected to the air inlet of the outer air pipe and the inner air pipe.

[0010] Preferably, the outer tracheal tube is movably fitted onto the outside of the inner tracheal tube, and the first air head is uniformly and evenly fixedly installed on the upper part of the outer tracheal tube in an equidistant manner, with a first aeration hole provided on the upper part of the first air head.

[0011] Preferably, the upper part of the second air head is provided with a second aeration hole, the upper part of the outer air pipe is provided with mounting grooves at equal intervals, the lower part of the second air head is fitted into the inner side of the mounting groove, and a sealing ring gasket is provided at the connection between the second air head and the mounting groove.

[0012] Preferably, the lower part of the second air head is fixedly provided with a fastening screw head, which passes through the mounting groove. The upper part of the inner air tube body is provided with a mounting cylinder seat. The fastening screw head is threadedly fastened to the inner side of the screw hole in the middle of the mounting cylinder seat. The upper part of the mounting cylinder seat is installed in contact with the inner side of the outer air tube body.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This treatment equipment employs a biological contact oxidation method for wastewater purification and features a dual-head aeration assembly. The aeration assembly includes a first air head and a second air head, which are independently supplied with air through an outer air pipe and an inner air pipe. The first air head has a smaller pore size, providing stable and reliable aeration during biofilm growth. The second air head has a larger pore size, and through periodic intermittent operation, it effectively flushes and separates the mature biofilm on the upper part of the packing plate at the end of the biofilm growth cycle via large air bubbles. This avoids clogging caused by excessive biofilm growth, promotes orderly cyclical growth of the biofilm, and improves the wastewater treatment efficiency and operational stability of the equipment. Furthermore, the second air head and the inner air pipe employ a separate installation structure. During installation, the second air head penetrates the outer air pipe and is securely fastened to the mounting base on the upper part of the inner air pipe using a screw-head structure. The structure is simple and easy to install. The secure installation of the second air head, combined with the support of the mounting base, allows for the installation and support of the inner air pipe without the need for a bracket, making disassembly and assembly extremely convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall installation planar structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the aeration component of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the middle section of the pipe body installation of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure of region A in the middle;

[0020] Figure 5 This is a schematic diagram of the upper structure of the external air tube of this utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the inner air tube and the second air head of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Treatment tank body; 2. Packing plate; 3. Packing support; 4. Inlet; 5. Outlet; 6. Sludge collection tank; 7. Aeration assembly; 8. Air supply assembly; 9. External air pipe; 10. Internal air pipe; 11. First air head; 12. Second air head; 13. Mounting groove; 14. Fastening screw; 15. Mounting cylinder base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] Please see Figure 1-6 This utility model provides a technical solution: a wastewater biological contact oxidation treatment device, including a treatment tank 1, as shown in the attached figure. Figure 1 As shown, in order to facilitate the entry of water, an inlet 4 is provided on the upper side of the treatment tank 1. In order to facilitate the discharge of treated water, an outlet 5 is provided on the lower side of the treatment tank 1. In order to collect sediment, a sludge collection trough 6 is provided at the bottom of the treatment tank 1. Both sides of the sludge collection trough 6 are sloped, which can facilitate the collection and discharge of sediment for subsequent cleaning operations.

[0027] To perform biological contact oxidation treatment of wastewater, a packing plate 2 and an oxygen supply and aeration mechanism are installed inside the treatment tank 1. The packing plate 2 is used for loading the packing material, as shown in the attached diagram. Figure 1 As shown, in order to facilitate the installation and support of the packing carrier plate 2, a packing support 3 is fixedly installed in the middle of the treatment tank 1. Multiple packing carrier plates 2 are provided and are installed vertically. Several packing carrier plates 2 are evenly fixed inside the treatment tank 1 at equal intervals through the packing support 3. The vertical installation can increase the contact area between the packing and the water liquid and improve the treatment efficiency.

[0028] The oxygen supply and aeration mechanism is located below the packing carrier plate 2. The oxygen supply and aeration mechanism includes an aeration component 7 and an air supply component 8. The aeration component 7 includes an outer air pipe 9, an inner air pipe 10, a first air head 11, and a second air head 12. The air supply component 8 is set on the outer side of the treatment tank 1 for supplying air to the aeration component 7. The air supply component 8 includes a first blower and a second blower. The first blower and the second blower are respectively connected to the air inlet ends of the outer air pipe 9 and the inner air pipe 10. The outer air pipe 9 and the inner air pipe 10 are independently supplied with air through the air supply component 8, and their operation can be independently controlled according to the biofilm growth cycle.

[0029] As attached Figure 3 As shown, the outer air tube 9 is movably fitted onto the outside of the inner air tube 10. The first air head 11 is uniformly and evenly fixedly installed on the upper part of the outer air tube 9. The upper part of the first air head 11 is provided with a first aeration hole, which is a microbubble pore. The small pore diameter of the first air head 11 can provide stable and reliable aeration and oxygen supply during the biofilm growth process. The second air head 12 is connected to the inner air tube 10. The upper part of the second air head 12 is provided with a second aeration hole. The second air head 12 has a larger pore diameter. Through periodic intermittent operation, at the end of the biofilm growth cycle, the mature biofilm on the packing plate 2 can be effectively flushed and separated by the impact of large air bubbles. This can avoid the blockage caused by the excessive growth of biofilm, promote the orderly cyclic growth of biofilm, and improve the wastewater treatment efficiency and operational stability of the equipment.

[0030] For easy connection and installation of the second air head 12, see attached... Figure 5 As shown, mounting grooves 13 are evenly spaced at equal intervals on the upper part of the outer air tube 9. The lower part of the second air head 12 is fitted into the inner side of the mounting groove 13. To improve the connection sealing of the second air head 12, a sealing ring gasket is provided at the connection between the second air head 12 and the mounting groove 13. For connection and installation with the inner air tube 10, as shown in the attached figure... Figure 6 As shown, a fastening screw head 14 is fixedly installed at the lower part of the second air head 12. The fastening screw head 14 passes through the mounting groove 13. A mounting base 15 is provided at the upper part of the inner air tube body 10. The fastening screw head 14 is threadedly fastened to the inner side of the screw hole provided in the middle of the mounting base 15. The upper part of the mounting base 15 abuts against the inner side of the outer air tube body 9. The inner air tube body 10 is fastened and supported to the inner side of the outer air tube body 9 by the second air head 12. During installation, the second air head 12 passes through the outer air tube body 9 and is fastened to the mounting base 15 at the upper part of the inner air tube body 10 through the screw head structure. The structure is simple and easy to install. Moreover, by fastening the second air head 12 and abutting the mounting base 15, the installation and support of the inner air tube body 10 can be achieved without the need for a bracket. The disassembly and assembly operation is convenient and has excellent disassembly and assembly convenience.

[0031] Working principle or structural principle: When installing the aeration component 7, first insert the inner air tube 10 into the interior of the outer air tube 9. Then, adjust the position of the inner air tube 10 by flipping it so that the mounting base 15 of the inner air tube 10 faces the mounting groove 13 on the upper part of the outer air tube 9. Next, insert and tighten the fastening screw 14 at the lower part of the second air head 12 into the inner side of the mounting base 15. Tighten the screw to complete the installation and tightening of the second air head 12. After installation, the upper part of the second air head 12 is tightly fitted into the mounting groove 13. At the same time, the mounting base 15 and the fastening screw 14 are tightly installed and abut against the upper interior of the outer air tube 9 for support, thus completing its own support. The aeration component 7 is installed and the limit is set. During operation, raw water enters the treatment tank 1 through the inlet 4 and is purified through biological contact oxidation. The purified water is then discharged through the outlet 5, completing the purification cycle. During biofilm growth, the first air head 11 on the upper part of the outer air pipe 9 is activated, introducing fine air bubbles into the treatment tank 1 to provide oxygen for biofilm growth. When the biofilm reaches the shedding stage, the inner air pipe 10 is connected to supply air, and large-volume air bubbles are provided through the second air head 12. Under the flushing action of the air bubbles, the mature biofilm is shed and separated, providing space for subsequent membrane growth.

[0032] In summary, this treatment equipment adopts a biological contact oxidation wastewater purification method and uses a dual-head structure for the aeration component 7. The aeration component 7 includes a first air head 11 and a second air head 12. The first air head 11 and the second air head 12 are independently supplied with air through the outer air pipe 9 and the inner air pipe 10. The first air head 11 has a smaller pore size, which can provide stable and reliable aeration and oxygen supply during the biofilm growth process. The second air head 12 has a larger pore size, and through periodic intermittent operation, it can effectively flush the mature biofilm on the packing plate 2 at the end of the biofilm growth cycle through large air bubble impact. The brush separation avoids clogging caused by excessive biofilm growth, promotes orderly biofilm growth, and improves the wastewater treatment efficiency and operational stability of the equipment. Furthermore, the second air head 12 and the inner air pipe body 10 adopt a split installation structure. During installation, the second air head 12 penetrates the outer air pipe body 9 and is fastened to the mounting base 15 on the upper part of the inner air pipe body 10 through a screw structure. The structure is simple and easy to install. Moreover, through the installation and fastening of the second air head 12 and the contact support of the mounting base 15, the installation and support of the inner air pipe body 10 can be achieved without the need for a bracket. The disassembly and assembly operations are convenient and have excellent ease of disassembly and assembly.

[0033] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A wastewater biological contact oxidation treatment apparatus comprising a treatment tank body (1), characterized by: The inside of the treatment pool body (1) is provided with a filler carrier plate (2) and an oxygen supply aeration mechanism, the filler carrier plate (2) is vertically and uniformly installed in the inside of the treatment pool body (1); The oxygen supply aeration mechanism is located below the filler carrier plate (2), the oxygen supply aeration mechanism comprises an aeration assembly (7) and a gas supply assembly (8), the aeration assembly (7) comprises an outer gas pipe body (9), an inner gas pipe body (10), a first gas head (11) and a second gas head (12), the outer gas pipe body (9) and the inner gas pipe body (10) are independently supplied with gas through the gas supply assembly (8), the first gas head (11) is uniformly installed on the upper part of the outer gas pipe body (9) in equidistant manner, the second gas head (12) is installed in communication with the inner gas pipe body (10), and the inner gas pipe body (10) is tightly supported and installed on the inner side of the outer gas pipe body (9) through the second gas head (12).

2. The wastewater biological contact oxidation treatment apparatus according to claim 1, characterized by: The middle part of the treatment pool body (1) is fixedly installed with a filler support (3), the filler carrier plate (2) is provided with a plurality of filler carrier plates (2), and the plurality of filler carrier plates (2) are uniformly fixedly installed in the inside of the treatment pool body (1) in equidistant manner through the filler support (3).

3. The wastewater biological contact oxidation treatment apparatus according to claim 2, characterized by: The upper side of the treatment pool body (1) is provided with a water inlet (4), the lower side of the treatment pool body (1) is provided with a water outlet (5), the bottom of the treatment pool body (1) is provided with a sewage collecting tank (6), and the two sides of the sewage collecting tank (6) are provided with inclined surfaces.

4. The wastewater biological contact oxidation treatment apparatus according to claim 1, characterized by: The gas supply assembly (8) is arranged on the outer side of the treatment pool body (1), and the gas supply assembly (8) comprises a first fan and a second fan, which are respectively installed in communication with the gas inlet ends of the outer gas pipe body (9) and the inner gas pipe body (10).

5. The wastewater biological contact oxidation treatment apparatus according to claim 4, wherein: The outer gas pipe body (9) is movably sleeved on the outside of the inner gas pipe body (10), the first gas head (11) is uniformly fixedly installed on the upper part of the outer gas pipe body (9) in equidistant manner, and the upper part of the first gas head (11) is provided with a first aeration hole.

6. The wastewater biological contact oxidation treatment apparatus according to claim 5, wherein: The upper part of the second gas head (12) is provided with a second aeration hole, the upper part of the outer gas pipe body (9) is uniformly provided with a mounting groove (13) in equidistant manner, the lower part of the second gas head (12) is embeddedly installed on the inner side of the mounting groove (13), and a sealing ring pad is arranged at the connection between the second gas head (12) and the mounting groove (13).

7. A wastewater biological contact oxidation treatment apparatus according to claim 6, wherein: The lower part of the second gas head (12) is fixedly provided with a fastening screw head (14), the fastening screw head (14) penetrates the mounting groove (13), the upper part of the inner gas pipe body (10) is provided with a mounting cylinder seat (15), the fastening screw head (14) is threadedly and tightly installed in the inner side of a screw hole arranged in the middle part of the mounting cylinder seat (15), and the upper part of the mounting cylinder seat (15) is abuttingly installed on the inner side of the outer gas pipe body (9).

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