An anaerobic-aerobic biological treatment system for high-cod industrial wastewater

Abstract

The utility model relates to industrial wastewater treatment technical field, and disclose an anaerobic aerobic biological treatment system for high COD industrial wastewater, including box, the box inside is provided with processing mechanism, processing mechanism includes the anaerobic tank that opens in the box inside one end, the water storage pool is opened at the box inside middle position department, the biological oxidation groove is opened at the other end of box inside, the anaerobic tank inside is fixed with fermentation reactor body, the input valve is fixed at the top of box side surface, the output valve is fixed at the bottom of the other side of box, and the output valve is communicated with the inside of biological oxidation groove. The utility model discloses the structure of processing mechanism, through setting up anaerobic tank and biological oxidation groove in the box inside, when the industrial wastewater after settlement is transported to the box inside, can cooperate under the water pump, carries out anaerobic and aerobic biological treatment, and under the cooperation of water storage pool and check valve, can prevent the backflow of treated wastewater, influence the quality of wastewater treatment, thereby improve the efficiency of the device wastewater treatment.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, specifically an anaerobic-aerobic biological treatment system for high COD industrial wastewater. Background Technology

[0002] COD industrial wastewater refers to industrial wastewater with excessive chemical oxygen demand. The core issue is the high organic content in the water. Direct discharge would seriously pollute water bodies, consume dissolved oxygen, threaten aquatic ecosystems, and potentially affect human health through the food chain. Therefore, it must be purified before it can be discharged.

[0003] An existing patent (publication number: CN215517090U) discloses a treatment device for high-concentration organic wastewater. It uses a support frame as the main body, with a biological treatment mechanism on one side and a pretreatment mechanism on top. The biological treatment mechanism includes a primary anaerobic tank fixed to one side of the support frame, and a full-dust fermentation reactor fixedly installed on top of the primary anaerobic tank. The wastewater undergoes full-dust fermentation in the full-dust fermentation reactor, and further treatment is carried out in the secondary and tertiary anaerobic tanks via a UASB anaerobic reactor. This tertiary anaerobic treatment ensures high biogas production and high COD removal rate under low energy consumption. Through multi-stage anaerobic tanks, most of the organic load can be degraded and converted into bioenergy in the anaerobic stage, reducing the organic load in the aerobic stage. However, in actual use, this treatment device only performs anaerobic treatment on industrial wastewater; the treated wastewater still needs to be output for subsequent aerobic biological treatment, resulting in low wastewater treatment efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that the above-mentioned treatment devices can only perform anaerobic treatment on wastewater, and the wastewater still needs to be transported to other devices for aerobic biological treatment after treatment, which leads to a reduction in the efficiency of industrial wastewater treatment. Therefore, this invention provides an anaerobic-aerobic biological treatment system for high COD industrial wastewater.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anaerobic-aerobic biological treatment system for high COD industrial wastewater includes: a tank, a treatment mechanism disposed inside the tank, a filter assembly disposed at one end of the tank, an aeration assembly disposed on the side of the tank, and a fixing assembly disposed on the top of the tank.

[0007] The processing mechanism includes an anaerobic tank located at one end of the inner side of the box, a water storage tank located in the middle of the inner side of the box, a biological oxidation tank located at the other end of the inner side of the box, a fermentation reactor body fixed inside the anaerobic tank, an input valve fixed at the top of the side of the box and connected to the inner side of the anaerobic tank, and an output valve fixed at the bottom of the other side of the box and connected to the inner side of the biological oxidation tank.

[0008] As a further improvement of this utility model: a water pump is fixed to the bottom side of the box, the input end of the water pump is connected to the inside of the anaerobic tank, and the output end of the water pump is connected to the inside of the water storage tank.

[0009] As a further improvement of this utility model: a water supply pipe is fixed to the bottom side of the box, a one-way valve is installed on the water supply pipe, and the water supply pipe is connected to the bottom side of the water storage tank and the biological oxidation tank respectively.

[0010] As a further embodiment of this utility model: the filter assembly includes a support platform, which is fixed to the four corners inside the anaerobic tank. A filter screen is fastened to the top side of the support platform, and a handle is fixed to the top side of the filter screen.

[0011] As a further embodiment of this utility model: the aeration component includes a shell, which is fixed to the bottom of the inner side of the biological oxidation tank, and a cavity is formed inside the shell.

[0012] As a further improvement of this utility model: air holes are evenly provided on the top side of the shell, and the air holes are connected to the inner cavity of the shell.

[0013] As a further improvement of this utility model: an air pump is fixed to the side of the box, and a conduit is fixed to the output end of the air pump. One end of the conduit passes through the box and communicates with the inside of the cavity.

[0014] As a further embodiment of this utility model: the fixing component includes a top cover, which is fastened to the top side of the box body. An elastic plate is symmetrically fixed to the bottom side of the top cover, and a spherical locking block is fixed to the bottom side of the elastic plate. A locking groove is symmetrically opened at the top of the inner side of the box body.

[0015] The beneficial effects of this utility model are:

[0016] This invention utilizes the structure of its treatment mechanism, by opening an anaerobic tank and a biological oxidation tank inside the tank. This allows industrial wastewater that has undergone sedimentation to be transported to the inside of the tank for anaerobic and aerobic biological treatment with the assistance of a water pump. Furthermore, the combination of a water storage tank and a one-way valve prevents the backflow of treated wastewater, thus avoiding any impact on the quality of wastewater treatment and improving the efficiency of the wastewater treatment process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top sectional view of the processing mechanism of this utility model;

[0019] Figure 3 This is a bottom cross-sectional view of the filter assembly of this utility model;

[0020] Figure 4 This is a side cross-sectional view of the aeration component of this utility model;

[0021] Figure 5 This is a bottom sectional view of the fixing component of this utility model;

[0022] In the diagram: 1. Box body; 2. Processing mechanism; 21. Anaerobic tank; 22. Water storage tank; 23. Biological oxidation tank; 24. Fermentation reactor body; 25. Water pump; 26. Water supply pipe; 27. One-way valve; 28. Input valve; 29. ​​Output valve; 3. Filter assembly; 31. Support platform; 32. Filter screen; 33. Handle;

[0023] 4. Aeration component; 41. Shell; 42. Cavity; 43. Air hole; 44. Air pump; 45. Conduit; 5. Fixing component; 51. Top cover; 52. Elastic plate; 53. Spherical locking block; 54. Locking groove. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, an anaerobic-aerobic biological treatment system for high COD industrial wastewater includes a tank 1, a treatment mechanism 2 disposed inside the tank 1, a filter assembly 3 disposed at one end of the inner side of the tank 1, an aeration assembly 4 disposed on the side of the tank 1, and a fixing assembly 5 disposed on the top side of the tank 1. The treatment mechanism 2 includes an anaerobic tank 21 located at one end of the inner side of the tank 1, a water storage tank 22 located at the middle position of the inner side of the tank 1, a biological oxidation tank 23 located at the other end of the inner side of the tank 1, a fermentation reactor body 24 fixed inside the anaerobic tank 21, an input valve 28 fixed at the top of the side of the tank 1 and connected to the inner side of the anaerobic tank 21, and an output valve 29 fixed at the bottom of the other side of the tank 1 and connected to the inner side of the biological oxidation tank 23.

[0027] Furthermore, a water pump 25 is fixed at the bottom side of the box 1. The input end of the water pump 25 is connected to the inside of the anaerobic tank 21, and the output end of the water pump 25 is connected to the inside of the water storage tank 22. The water pump 25 can drive the wastewater to flow and transport the wastewater that has completed anaerobic treatment to the next treatment stage.

[0028] Furthermore, a water supply pipe 26 is fixed to the bottom side of the tank 1, and a one-way valve 27 is installed on the water supply pipe 26. The water supply pipe 26 is connected to the bottom inner side of the water storage tank 22 and the biological oxidation tank 23 respectively. Through the structure of the one-way valve 27, the backflow of wastewater can be prevented from affecting the quality of wastewater treatment.

[0029] Example 2

[0030] In addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0031] Furthermore, the filter assembly 3 includes a support platform 31, which is fixed to the four corners inside the anaerobic tank 21. A filter screen 32 is fastened to the top side of the support platform 31, and a handle 33 is fixed to the top side of the filter screen 32. Through the detachable filter screen 32, solid impurities or sediments in the wastewater can be filtered out for subsequent treatment.

[0032] Furthermore, the aeration component 4 includes a housing 41, which is fixed to the bottom of the inner side of the biological oxidation tank 23. A cavity 42 is provided inside the housing 41. By cooperating with the housing 41, air can be supplied to the inside of the biological oxidation tank 23 to increase the oxygen content of the wastewater inside.

[0033] Furthermore, the top side of the shell 41 is uniformly provided with air holes 43, which are connected to the inner cavity 42 of the shell 41. Through the air holes 43, micro bubbles can be delivered to the inside of the biological oxidation tank 23, thereby increasing the contact area between air and wastewater and rapidly increasing the oxygen content of the wastewater.

[0034] Furthermore, an air pump 44 is fixed to the side of the chamber 1, and a conduit 45 is fixed to the output end of the air pump 44. One end of the conduit 45 passes through the chamber 1 and communicates with the inside of the cavity 42. Using the air pump 44 is simple and convenient to operate, allowing the operator to control the air pump 44 to deliver air to the inside of the biological oxidation tank 23 according to the actual processing situation.

[0035] Furthermore, the fixing component 5 includes a top cover 51, which is snapped onto the top side of the housing 1. An elastic plate 52 is symmetrically fixed to the bottom side of the top cover 51, and a spherical locking block 53 is fixed to the bottom side of the elastic plate 52. A locking groove 54 is symmetrically opened on the top inner side of the housing 1. Through the structure of the elastic plate 52 and the spherical locking block 53, the top cover 51 can be quickly disassembled and assembled, making it convenient for operators to observe the wastewater treatment status.

[0036] Working principle: Opening the input valve 28 allows wastewater to be supplied to the anaerobic tank 21 inside the housing 1. The wastewater passes through the filter screen 32, which removes solid impurities and sediments. After use, the filter screen 32 can be removed by pulling out the handle 33 for cleaning and maintenance, and then reinstalled. Once inside the anaerobic tank 21, the wastewater undergoes fermentation treatment via the fermentation reactor body 24. After treatment, the water pump 25 transports the wastewater to the storage tank 22 for temporary storage. Afterwards, the wastewater is further processed through... Water is delivered to the inside of the biological oxidation tank 23 via the water supply pipe 26. At this time, the air pump 44 can be controlled to deliver air to the inside of the shell 41 through the conduit 45. The air is discharged through the air hole 43 and forms multiple tiny bubbles, which allows oxygen to fully dissolve in the wastewater, increasing its oxygen content. This promotes the decomposition of organic matter in the wastewater by aerobic microorganisms. After the wastewater inside the tank is treated, the output valve 29 can be opened to output the wastewater for continuous wastewater treatment. Through this structure, anaerobic and aerobic treatment can be carried out simultaneously while the wastewater flows inside the tank 1, thereby improving the efficiency of wastewater treatment.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anaerobic-aerobic biological treatment system for high COD industrial wastewater, comprising: The box body (1) is characterized in that: a processing mechanism (2) is provided inside the box body (1), a filter assembly (3) is provided at one end of the inner side of the box body (1), an aeration assembly (4) is provided on the side of the box body (1), and a fixing assembly (5) is provided on the top side of the box body (1). The processing mechanism (2) includes an anaerobic tank (21) located at one end of the inner side of the box (1), a water storage tank (22) located at the middle of the inner side of the box (1), a biological oxidation tank (23) located at the other end of the inner side of the box (1), a fermentation reactor body (24) fixed inside the anaerobic tank (21), an input valve (28) fixed at the top of the side of the box (1) and connected to the inner side of the anaerobic tank (21), and an output valve (29) fixed at the bottom of the other side of the box (1) and connected to the inner side of the biological oxidation tank (23).

2. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: A water pump (25) is fixed to the bottom side of the box (1). The input end of the water pump (25) is connected to the inside of the anaerobic tank (21), and the output end of the water pump (25) is connected to the inside of the water storage tank (22).

3. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: A water supply pipe (26) is fixed to the bottom side of the box (1), and a one-way valve (27) is installed on the water supply pipe (26). The water supply pipe (26) is connected to the bottom inside the water storage tank (22) and the biological oxidation tank (23).

4. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: The filter assembly (3) includes a support platform (31), which is fixed to the four corners inside the anaerobic tank (21). A filter screen (32) is fastened to the top side of the support platform (31), and a handle (33) is fixed to the top side of the filter screen (32).

5. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: The aeration assembly (4) includes a housing (41), which is fixed to the bottom of the inner side of the biological oxidation tank (23), and a cavity (42) is provided inside the housing (41).

6. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 5, characterized in that: The top side of the shell (41) is provided with air holes (43) which are connected to the inner cavity (42) of the shell (41).

7. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: An air pump (44) is fixed to the side of the box (1), and a conduit (45) is fixed to the output end of the air pump (44). One end of the conduit (45) passes through the box (1) and communicates with the inside of the cavity (42).

8. The anaerobic-aerobic biological treatment system for high COD industrial wastewater according to claim 1, characterized in that: The fixing component (5) includes a top cover (51), which is fastened to the top side of the box (1). An elastic plate (52) is symmetrically fixed to the bottom side of the top cover (51). A spherical locking block (53) is fixed to the bottom side of the elastic plate (52). A locking groove (54) is symmetrically opened at the top of the inner side of the box (1).

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