Device for efficiently degrading antibiotic-containing sewage

Abstract

The device comprises a hollow tank body, a hollow conveying cylinder is vertically arranged in the tank body, the conveying cylinder is provided with an opening in the lower end, the upper end of the conveying cylinder is communicated with a drainage pipe, a stirring and conveying assembly is arranged in the conveying cylinder, a plurality of fixing rods are arranged and are distributed in the radial direction along the conveying cylinder, and the stirring and conveying assembly is arranged in the conveying cylinder. One end of the fixing rod is connected to the peripheral side of the upper end of the conveying cylinder, the other end of the fixing rod is connected to the inner wall of the tank body, a biological reaction assembly is connected to the fixing rod, a water inlet pipe is arranged above the biological reaction assembly and communicated with the tank body, and an aeration assembly is arranged below the conveying cylinder. According to the sewage treatment device, sewage multi-stage treatment is realized in the space of the tank body through the conveying cylinder, the space utilization rate is remarkably improved, the conveying cylinder is matched with the conveying and stirring assembly, the double functions of sewage conveying and stirring are realized, sufficient combination of sewage and oxygen is enhanced, and the degradation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a device for efficiently degrading antibiotic-containing wastewater. Background Technology

[0002] Antibiotic pollution in the environment is becoming increasingly serious, and the antibiotic resistance it induces has become a major threat to human health. Through a literature review of antibiotic concentration levels in the influent and effluent of wastewater treatment plants in many parts of the world, it was found that current wastewater treatment processes cannot effectively remove antibiotics. Adsorption and biodegradation are the main pathways for the removal of antibiotics from wastewater. In the aerobic treatment process of existing wastewater degradation devices, the substrate distribution is uneven and the combination of wastewater and oxygen is insufficient during aeration, resulting in a decrease in the oxygenation capacity of wastewater and insufficient biological reaction. Utility Model Content

[0003] The purpose of this invention is to provide a device for efficiently degrading antibiotic-containing wastewater. After passing through the biological reaction component, the wastewater is stirred and transported by the stirring and conveying component, which can also increase the contact area between the wastewater and the water bubbles.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A device for efficiently degrading antibiotic-containing wastewater includes a hollow tank with a vertically mounted conveying cylinder inside. The conveying cylinder is hollow and open at its lower end, with a drain pipe connected to its upper end. A stirring and conveying assembly is installed inside the conveying cylinder. Multiple fixing rods are arranged radially along the periphery of the conveying cylinder, with one end connected to the upper periphery of the conveying cylinder and the other end connected to the inner wall of the tank. A biological reaction assembly is connected to the fixing rods, with an inlet pipe above the biological reaction assembly and connected to the tank. An aeration assembly is located below the conveying cylinder.

[0006] By adopting the above technical solution, the sewage enters the tank through the inlet pipe and reacts with the biological reaction components. When the sewage reaches the bottom of the tank, the stirring and conveying components stir the sewage at the bottom and convey it upwards. Finally, it is conveyed to the next process through the drain pipe.

[0007] A further configuration of this utility model is as follows: the stirring and conveying assembly includes a rotating motor, a rotating shaft, a first spiral blade, a second spiral blade, and stirring rods. The rotating motor is located at the upper end of the tank body. The rotating shaft is vertically located inside the conveying cylinder. The upper end of the rotating shaft passes through the tank body and the conveying cylinder and is connected to the rotating motor. The rotating shaft rotates in cooperation with the tank body and the conveying cylinder. The first spiral blade is sleeved on the rotating shaft. Multiple stirring rods are provided and evenly distributed from top to bottom along the rotating shaft. The stirring rods are located below the first spiral blades and are connected to the rotating shaft. The second spiral blade is located below the stirring rods and is sleeved on the rotating shaft. The first and second spiral blades are in contact with the inner wall of the conveying cylinder.

[0008] By adopting the above technical solution, the first spiral blade and the second blade are combined with the stirring rod to realize the functions of sludge conveying and sewage mixing.

[0009] A further feature of this invention is that the aeration assembly includes an aeration stone, an air compressor, and an air pipe. The aeration stone is located below the second spiral blade, the air compressor is located on the outside of the tank, one end of the air pipe is connected to the aeration stone, and the other end of the air pipe is connected to the air compressor.

[0010] By adopting the above technical solution, the aeration stones are aerated at the bottom of the tank.

[0011] A further feature of this invention is that the bioreactor assembly includes hanging ropes and fillers, one end of each hanging rope is connected to a fixed rod, multiple hanging ropes are connected to each fixed rod, the other end of each hanging rope extends downward, and multiple fillers are provided and evenly distributed from top to bottom on the hanging ropes.

[0012] By adopting the above technical solution, the hanging ropes are vertically distributed and combined with multiple fillers to form a three-dimensional biofilm attachment space.

[0013] In summary, this utility model has the following beneficial effects:

[0014] Firstly, this invention achieves multi-stage wastewater treatment within the tank space using a conveying cylinder, significantly improving space utilization. The conveying cylinder, in conjunction with the conveying and stirring assembly, achieves the dual functions of hydraulic lifting and wastewater stirring and conveying, enhancing aerobic treatment of wastewater and improving degradation efficiency. Secondly, this invention employs a mechanical structure combining a first spiral blade, a second blade, and a stirring rod to achieve the dual functions of wastewater conveying and stirring, ensuring uniform substrate distribution in the wastewater. During aeration, the stirring rod cuts the air bubbles, enhancing the full combination of wastewater and oxygen.

[0015] Thirdly, the aeration component in this utility model uses an air compressor to drive the aeration stones to form microbubbles, which enhances the oxygen mass transfer efficiency. The hanging rope is suspended on the fixed rod, which increases the biofilm attachment area and can carry more microorganisms. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the present invention;

[0017] Figure 2 This is a sectional view of the fixing rod in this utility model;

[0018] Figure 3 This is a cross-sectional view of the stirring rod in this utility model;

[0019] In the diagram: 1. Tank; 2. Conveying cylinder; 3. Drain pipe; 4. Mixing and conveying assembly; 401. Rotating motor; 402. Rotating shaft; 403. First helical blade; 404. Second helical blade; 405. Mixing rod; 5. Fixing rod; 6. Bioreactor assembly; 601. Hanging rope; 602. Packing material; 7. Water inlet pipe; 8. Aeration assembly; 801. Aeration stone; 802. Air compressor; 803. Air pipe. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Examples, such as Figures 1 to 3 As shown, a device for efficiently degrading antibiotic-containing wastewater includes a hollow tank 1, in which aerobic treatment of wastewater is carried out. A vertical conveying cylinder 2 is installed inside the tank 1. The conveying cylinder 2 is hollow inside and open at the bottom. The upper end of the conveying cylinder 2 is connected to a drain pipe 3 for draining the aerobically treated wastewater. A stirring and conveying assembly (4) is installed inside the conveying cylinder 2. Multiple fixing rods 5 are provided and radially distributed along the conveying cylinder 2. One end of the fixing rod 5 is connected to the upper periphery of the conveying cylinder 2, and the other end of the fixing rod 5 is connected to the inner wall of the tank 1. The fixing rod 5 is used to fix the conveying cylinder 2. A biological reaction assembly 6 is connected to the fixing rod 5. An inlet pipe 7 is provided above the biological reaction assembly 6 and is connected to the tank 1. An aeration assembly 8 is provided below the conveying cylinder 2. Wastewater enters the tank 1 through the inlet pipe 7 and reacts with the biological reaction assembly 6. When the wastewater reaches the bottom of the tank 1, the stirring and conveying assembly stirs the wastewater at the bottom and conveys it upward.

[0025] The stirring and conveying assembly (4) includes a rotating motor 401, a rotating shaft 402, a first spiral blade 403, a second spiral blade 404, and stirring rods 405. The rotating motor 401 is located at the upper end of the tank 1. The rotating shaft 402 is vertically installed inside the conveying cylinder 2. The upper end of the rotating shaft 402 passes through the tank 1 and the conveying cylinder 2 and is connected to the rotating motor 401. The rotating shaft 402 rotates in conjunction with the tank 1 and the conveying cylinder 2. The first spiral blade 403 is sleeved on the rotating shaft 402. Multiple stirring rods 405 are provided and are evenly distributed from top to bottom along the rotating shaft 402. 05 is located below the first spiral blade 403. The stirring rod 405 is connected to the rotating shaft 402. The cross-section of the stirring rod 405 is rhomboid, which facilitates the cutting of the conveyed sewage and bubbles and enhances the oxidation process. The second spiral blade 404 is located below the stirring rod 405 and is sleeved on the rotating shaft 402. The first spiral blade 403 and the second spiral blade 404 are in contact with the inner wall of the conveying cylinder 2. The first spiral blade 403 and the second blade are combined with the stirring rod 405 to realize the functions of sludge conveying and sewage stirring.

[0026] The aeration assembly 8 includes an aeration stone 801, an air compressor 802, and an air pipe 803. The aeration stone 801 is located below the second spiral blade 404. The air compressor 802 is located on the outside of the tank body 1. One end of the air pipe 803 is connected to the aeration stone 801, and the other end of the air pipe 803 is connected to the air compressor 802. The aeration stone 801 aerates at the bottom of the tank body 1, and the bubbles are transported together with the sewage into the conveying cylinder 2 for reaction.

[0027] The bioreactor assembly 6 includes hanging ropes 601 and packing material 602. One end of each hanging rope 601 is connected to a fixed rod 5, and multiple hanging ropes 601 are connected to each fixed rod 5. The other end of each hanging rope 601 extends downward. Multiple packing materials 602 are provided and are evenly distributed from top to bottom on the hanging ropes 601. The vertical distribution of the hanging ropes 601, together with the multiple sections of packing material 602, forms a three-dimensional biofilm attachment space, which can carry a higher amount of microorganisms per unit volume. The modular design facilitates the local replacement of damaged packing material 602, reducing maintenance costs.

[0028] Working principle: There are multiple process flows in the degradation of antibiotic-containing wastewater. The utility model belongs to the aerobic treatment stage. The wastewater treated in the previous process is transported to the tank 1 through the inlet pipe 7 and reacts with the biological reaction component 6 in the tank 1. As it flows, the wastewater after the reaction reaches the bottom of the tank 1. The wastewater and the bubbles generated by the aeration stone 801 are transported together to the conveying cylinder 2 by the second spiral blade 404. The stirring rod 405 stirs it to make the matrix in the wastewater evenly distributed and cuts the bubbles to enhance the reaction effect between wastewater and oxygen. Finally, it is transported to the top of the conveying cylinder 2 and then transported to the next process through the drain pipe 3.

[0029] Implementation Results: This device achieves efficient and stable treatment of antibiotic wastewater through a double-helix stirring structure, multi-layered packing material 602, and technological integration. Its design not only meets environmental standards but also boasts advantages such as ease of operation and controllable cost, providing a feasible technical solution for antibiotic pollution control. Future upgrades, such as the packing material 602 and intelligent control system, can be further explored to enhance the overall performance of the device. The packing material 602 in the bioreactor 6 provides a high specific surface area attachment carrier for microorganisms, forming a biofilm. Microorganisms decompose antibiotic molecules into harmless substances through metabolic activities. For example, single strains or complex strains of photosynthetic bacteria and lactic acid bacteria can efficiently degrade antibiotics such as tetracycline and tylosin. The first spiral blade 403 in the conveying cylinder 2 lifts the wastewater from bottom to top, while the second spiral blade 404 transports the treated water. This design enhances the contact between wastewater and oxygen, shortens the mass transfer path, and improves degradation efficiency. The aeration component 8 improves oxygen dissolution efficiency through microbubble technology, supporting the activity of aerobic microorganisms. The synergistic effect of aeration and stirring refines the bubbles, improves oxygen utilization, and prevents sludge deposition, maintaining system stability.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A device for efficiently degrading antibiotic-containing wastewater, comprising a hollow tank (1), characterized in that: The tank (1) is vertically equipped with a conveying cylinder (2). The conveying cylinder (2) is hollow inside and open at the bottom. The upper end of the conveying cylinder (2) is connected to a drain pipe (3). The conveying cylinder (2) is equipped with a stirring and conveying assembly (4). The periphery of the conveying cylinder (2) is equipped with multiple fixing rods (5) that are radially distributed along the conveying cylinder (2). One end of the fixing rod (5) is connected to the upper periphery of the conveying cylinder (2), and the other end of the fixing rod (5) is connected to the inner wall of the tank (1). The fixing rod (5) is connected to a biological reaction assembly (6). The biological reaction assembly (6) is equipped with an inlet pipe (7) above it. The inlet pipe (7) is connected to the tank (1). The conveying cylinder (2) is equipped with an aeration assembly (8) below it.

2. The device for efficiently degrading antibiotic-containing wastewater according to claim 1, characterized in that: The stirring and conveying assembly (4) includes a rotating motor (401), a rotating shaft (402), a first spiral blade (403), a second spiral blade (404), and a stirring rod (405). The rotating motor (401) is located at the upper end of the tank (1). The rotating shaft (402) is vertically installed inside the conveying cylinder (2). The upper end of the rotating shaft (402) passes through the tank (1) and the conveying cylinder (2) and is connected to the rotating motor (401). The rotating shaft (402) rotates in conjunction with the tank (1) and the conveying cylinder (2). The first spiral blade (403) The stirring rod (405) is sleeved on the rotating shaft (402). Multiple stirring rods (405) are provided and evenly distributed from top to bottom along the rotating shaft (402). The stirring rod (405) is located below the first spiral blade (403) and is connected to the rotating shaft (402). The second spiral blade (404) is located below the stirring rod (405) and is sleeved on the rotating shaft (402). The first spiral blade (403) and the second spiral blade (404) are in contact with the inner wall of the conveying cylinder (2).

3. The device for efficiently degrading antibiotic-containing wastewater according to claim 2, characterized in that: The aeration assembly (8) includes an aeration stone (801), an air compressor (802), and an air pipe (803). The aeration stone (801) is located below the second spiral blade (404), the air compressor (802) is located on the outside of the tank (1), one end of the air pipe (803) is connected to the aeration stone (801), and the other end of the air pipe (803) is connected to the air compressor (802).

4. The device for efficiently degrading antibiotic-containing wastewater according to claim 3, characterized in that: The bioreactor assembly (6) includes a hanging rope (601) and a filler (602). One end of each hanging rope (601) is connected to a fixed rod (5). Each fixed rod (5) is connected to multiple hanging ropes (601). The other end of each hanging rope (601) extends downward. Multiple fillers (602) are provided and are evenly distributed from top to bottom on the hanging ropes (601).

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