Automatic sewage virus concentration device and use method

Abstract

The invention discloses a sewage virus automatic concentration device and a use method, the sewage virus automatic concentration device comprises: an ultrafiltration mechanism, which comprises at least one ultrafiltration bottle, and the ultrafiltration bottle is internally provided with a filter membrane dividing the ultrafiltration bottle into a left chamber and a right chamber; the sewage barrel is communicated with the left chamber through a liquid inflow pipeline and a liquid backflow pipeline; a liquid conveying pump is arranged on the liquid inflow pipeline; a first valve and a second valve are respectively arranged on the liquid inflow pipeline and the liquid backflow pipeline; the air compressor is communicated with the right chamber through a third valve; the extrusion concentration mechanism comprises a cylinder part which is communicated with the left cavity of the ultrafiltration bottle and is internally provided with a water delivery channel, a concentration part arranged below the cylinder part, a collection part positioned below the concentration part and a moving part, and the diameter of one end, close to the concentration part, of the cylinder part is smaller than that of the concentration part; and the waste liquid bottle is connected with the right chamber and the extrusion concentration mechanism. By means of secondary concentration treatment of micro-pressure ultrafiltration matched with extrusion concentration, automatic concentration of sewage can be effectively achieved.

Description

Technical Field

[0001] This invention relates to the field of virus concentration technology, and in particular to an automatic sewage virus concentration device and its usage method. Background Technology

[0002] In the field of virus prevention and control, the concentration of virus samples is a crucial preliminary step in virus detection, research, and control. With the increasing frequency of global public health emergencies, the demand for rapid and accurate virus detection is growing daily. As a core step in virus detection, the efficiency and safety of virus concentration directly affect subsequent analysis results and the speed of prevention and control response.

[0003] Currently, virus concentration largely relies on manual operations, such as traditional methods like ultracentrifugation and filtration / adsorption. Manual operations are not only time-consuming, labor-intensive, and inefficient, but also pose a high risk of infection for operators who come into direct contact with the virus during sample processing, especially with highly pathogenic viruses. Furthermore, errors and instabilities inherent in manual operations can lead to inconsistent virus concentration results, affecting the accuracy of detection.

[0004] In view of this, it is necessary to design an automatic sewage virus concentration device and its usage method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic wastewater virus concentration device and its usage method that utilizes micro-pressure ultrafiltration combined with extrusion concentration for secondary concentration treatment, effectively achieving automated wastewater concentration.

[0006] To achieve the above-mentioned objective, the present invention provides an automatic wastewater virus concentration device, comprising: An ultrafiltration device includes at least one ultrafiltration bottle, wherein a filter membrane is disposed inside the ultrafiltration bottle, dividing it into a left chamber and a right chamber; The wastewater tank is connected to the left chamber via a liquid inflow pipe and a liquid return pipe, forming a circulation path between the ultrafiltration bottle and the wastewater tank; a liquid transfer pump is installed on the liquid inflow pipe to transport liquid and create a pressure difference between the left and right chambers; a first valve and a second valve are respectively installed on the liquid inflow pipe and the liquid return pipe. The air compressor is connected to the right chamber via a third valve; The compression concentration mechanism includes a cylindrical section with an internal water delivery channel communicating with the left chamber of the ultrafiltration bottle, a concentration section with packing material installed below the cylindrical section, a collection section located below the concentration section, and a moving section for controlling the vertical reciprocating movement of the cylindrical section. The diameter of the cylindrical section near the concentration section is smaller than the diameter of the concentration section. A fourth valve is provided on the connecting pipe between the cylindrical section and the left chamber. The waste liquid bottle is connected to the right chamber and the compression concentration mechanism, and a fifth valve is provided on the connecting pipe between the waste liquid bottle and the right chamber.

[0007] As a further improvement of the present invention, the pressure difference between the left and right chambers is specifically achieved by: controlling the valve to form a circulation path between the sewage tank and the left chamber of the ultrafiltration bottle, while the right chamber of the ultrafiltration bottle is connected to the waste liquid bottle. Under the action of the liquid transfer pump, the pressure in the left chamber is greater than the pressure in the right chamber, thereby creating a micro-pressure environment in the left chamber of the ultrafiltration bottle.

[0008] As a further improvement of the present invention, a buffer bottle for temporarily storing the preliminary concentrate concentrated by the ultrafiltration bottle is provided between the left chamber of the ultrafiltration bottle and the column body. As a further improvement of the present invention, multiple ultrafiltration bottles are arranged in parallel, and each ultrafiltration bottle is connected to a sewage tank, an air compressor, a column section and a waste liquid bottle respectively, so as to form multiple parallel ultrafiltration channels.

[0009] As a further improvement of the present invention, the ultrafiltration mechanism is also provided with a cleaning bottle arranged in parallel with the ultrafiltration bottle. The cleaning bottle is connected to the sewage tank, the column section and the waste liquid bottle, so as to form a cleaning passage for cleaning the pipeline.

[0010] As a further improvement of the present invention, the water conveying channels at intervals are provided at one end of the column near the concentration section, so that a water conveying zone and a squeezing zone are formed on the cross-section of the end of the column.

[0011] As a further improvement of the present invention, the concentration section includes a concentration turntable, a through hole provided on the concentration turntable, and at least one concentration hole on which packing is installed, such that the through hole is in the cleaning position when it is directly below the column section, and the concentration hole is in the concentration position when it is directly below the column section.

[0012] As a further improvement of the present invention, a guide tube is provided below the concentration turntable, which is opposite to the column part and is open in shape to guide the cleaning liquid and the waste liquid in the secondary concentration process to the top of the waste liquid bottle.

[0013] As a further improvement of the present invention, the collection section includes a collection turntable and a reciprocating moving structure for guiding the secondary concentrate in the concentration hole located directly below the column section to the collection turntable.

[0014] As a further improvement of the present invention, the filler is a porous material that can absorb water.

[0015] The present invention also provides a method for using the aforementioned automatic wastewater virus concentration device, comprising the following steps: S1. By controlling the valve, a circulation path is formed between the sewage tank and the left chamber of the ultrafiltration bottle, while the right chamber of the ultrafiltration bottle is connected to the waste liquid bottle. S2. Turn on the liquid transfer pump to make the sewage circulate in the circulation path, and at the same time create a pressure difference between the left and right chambers to perform micro-pressure ultrafiltration. S3. When the sewage circulates to a certain extent, the connection between the ultrafiltration bottle and the sewage tank and waste liquid bottle is disconnected by the valve control, so that the left chamber of the ultrafiltration bottle is connected to the column and the right chamber is connected to the air compressor. The air compressor is used to desorb the virus on the filter membrane. Then, the desorbed virus-containing preliminary concentrate flows to the concentration section for secondary concentration using the packing material. Then, the packing material is squeezed by the column section and the secondary concentrate is collected through the collection section.

[0016] The beneficial effects of this invention are: 1. This invention utilizes a filter membrane to form left and right chambers within an ultrafiltration bottle, employing micro-pressure to achieve gradual concentration of wastewater. This allows viruses to adsorb onto the filter membrane. Subsequently, backflushing with an air compressor completes the desorption of the viruses, yielding a preliminary concentrated solution. Micro-pressure ultrafiltration maximizes the integrity of the filter membrane, enabling multiple recycling. Furthermore, the initial concentration of viruses is gradually achieved through the circulation of wastewater between the ultrafiltration bottle and the wastewater tank. Additionally, while concentrating viruses using micro-pressure ultrafiltration, the adhesion between the virus and the filter membrane is controlled within a certain range, facilitating the collection of viruses by blowing them off with an air compressor. Compared to high-pressure ultrafiltration, this avoids the strong binding force between the virus and the filter membrane caused by high pressure, which could prevent the virus from detaching from the filter membrane without damaging it, thus affecting concentration efficiency.

[0017] 2. This invention is based on micro-pressure ultrafiltration, which causes viruses to aggregate into aggregates with a certain degree of adhesion, thus facilitating secondary concentration using a compression concentration mechanism. Specifically, under the action of gravity, when the initial concentrated liquid flows through the packing material, most of the water flows through the packing material, while the viruses adhere to the packing material. Subsequently, under pressure, the virus aggregates disperse and use the water adsorbed in the packing material as a carrier to detach from the packing material, thereby achieving secondary concentration of the viruses. Thus, through the combination of micro-pressure ultrafiltration and compression concentration, wastewater concentration is effectively achieved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the process for an automatic wastewater virus concentration device.

[0019] Figure 2 This is a schematic diagram of an automatic wastewater virus concentration device.

[0020] Figure 3 This is a schematic diagram of the columnar section and the condensation section.

[0021] Figure 4 This is a schematic diagram of the cross-section of the column section near the concentration section.

[0022] Figure 5 This is a schematic diagram of the structure of the concentration section and the collection section.

[0023] Figure 6 This is a schematic diagram of the structure of a three-way bottle.

[0024] Figure Labels 11. Ultrafiltration bottle; 111. Left chamber; 112. Right chamber; 12. Washing bottle; 20. Wastewater tank; 21. Diaphragm pump; 22. Pressure gauge; 23. Liquid inflow pipe; 24. Liquid return pipe; 25. First valve; 26. Second valve; 30. Air compressor; 31. Third valve; 40. Squeeze concentration mechanism; 41. Column section; 411. Water delivery zone; 412. Squeeze zone; 413. Fourth valve; 42. Moving part; 4 21. Fixed component; 422. Moving component; 43. Telescopic pipe; 441. Concentrating turntable; 442. Through hole; 443. Concentration hole; 451. Collecting turntable; 452. Motor; 453. Lead screw; 454. Guide rod; 455. Sliding block; 456. Three-way bottle; 4561. Liquid inlet; 4562. Liquid outlet; 4563. Liquid outlet; 4564. Liquid storage space; 50. Buffer bottle; 60. Waste liquid bottle; 61. Fifth valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] like Figures 1-6 As shown, the present invention provides an automatic wastewater virus concentration device, comprising: An ultrafiltration mechanism includes at least one ultrafiltration bottle 11, wherein a filter membrane is disposed inside the ultrafiltration bottle 11, dividing it into a left chamber 111 and a right chamber 112. Wastewater tank 20 is connected to left chamber 111 via liquid inlet pipe 23 and liquid return pipe 24, forming a circulation path between ultrafiltration bottle 11 and wastewater tank 20; a liquid transfer pump is provided on liquid inlet pipe 23 for transporting liquid and creating a pressure difference between left chamber 111 and right chamber 112; a first valve 25 and a second valve 26 are respectively provided on liquid inlet pipe 23 and liquid return pipe 24; The air compressor 30 is connected to the right chamber 112 via the third valve 31; The compression concentration mechanism 40 includes a column section 41 with an internal water supply channel communicating with the left chamber 111 of the ultrafiltration bottle 11, a concentration section with packing material installed below the column section 41, a collection section below the concentration section, and a moving part 42 for controlling the vertical reciprocating movement of the column section 41. The diameter of the column section 41 near the concentration section is smaller than the diameter of the concentration section, so that under the action of the moving part 42, the column section 41 moves to compress the packing material. A fourth valve 413 is provided on the connecting pipe between the column section 41 and the left chamber 111. Waste liquid bottle 60 is connected to the right chamber 112 and the compression concentration mechanism 40, and a fifth valve 61 is provided on the connecting pipeline between the waste liquid bottle 60 and the right chamber 112.

[0029] For example, a pressure gauge 22 is also provided on the liquid inflow pipe 23. The liquid transfer pump is a diaphragm pump 21.

[0030] The pressure difference between the left chamber 111 and the right chamber 112 is specifically achieved by controlling the valve to form a circulation path between the wastewater tank 20 and the left chamber 111 of the ultrafiltration bottle 11. At the same time, the right chamber 112 of the ultrafiltration bottle 11 is connected to the waste liquid bottle 60. Under the action of the diaphragm pump 21, the pressure in the left chamber 111 is greater than the pressure in the right chamber 112, thus creating a micro-pressure environment in the left chamber 111 of the ultrafiltration bottle 11.

[0031] For example, a buffer bottle 50 is also provided between the left chamber 111 of the ultrafiltration bottle 11 and the column section 41 for temporarily storing the preliminary concentrate concentrated by the ultrafiltration bottle 11. After micro-pressure ultrafiltration is completed, the preliminary concentrate adhering to the filter membrane is temporarily stored in the buffer bottle 50 under the action of the air compressor 30 for secondary concentration. The buffer bottle 50 is provided with a water outlet at the bottom.

[0032] like Figure 2As shown in this example, multiple ultrafiltration bottles 11 are arranged in parallel in the ultrafiltration mechanism. Each ultrafiltration bottle 11 is connected to the sewage tank 20, the air compressor 30, the column section 41, and the waste liquid bottle 60, respectively, so as to form multiple parallel ultrafiltration channels. Each ultrafiltration channel is equipped with a first to a fifth valve 61 to select a certain ultrafiltration channel for sewage filtration as needed. For different sewage samples, the ultrafiltration mechanism can also meet the concentration requirements and avoid contamination between different samples.

[0033] In addition, the ultrafiltration unit is also provided with a cleaning bottle 12 arranged in parallel with the ultrafiltration bottle 11. The cleaning bottle 12 is connected to the sewage tank 20, the column part 41 and the waste liquid bottle 60, so as to form a cleaning passage for cleaning the pipeline.

[0034] For example, the column portion 41 has multiple water conveying channels spaced apart near the concentration section, such that a water conveying area 411 and a squeezing area 412 are formed on the cross-section of the end of the column portion 41. Figure 4 The end of the column section 41 furthest from the concentration section is connected to the outlet of the buffer bottle 50 via a telescopic pipe 43, such as... Figure 3 The diagram shows a partial telescopic pipe 43, and a sixth valve is installed at the outlet of the buffer bottle 50.

[0035] For example, the moving part 42 includes a fixing member 421 and a moving member 422 that can move up and down relative to the fixing member 421. The moving member 422 is fixedly connected to the column part 41. This allows the column part 41 to move up and down when the moving member 422 moves relative to the fixing member 421 under the action of a driving force, thereby squeezing the filler in the concentration part.

[0036] For example, the concentration section includes a concentration turntable 441, a through hole 442 disposed on the concentration turntable 441, and at least one concentration hole 443 on which a packing is installed, such that the through hole 442 is in the cleaning position when it is directly below the column section 41, and the concentration hole 443 is in the concentration position when it is directly below the column section 41.

[0037] The packing material is a water-absorbing porous material. In this example, the porous material is made of polyester fiber to capture the virus from the flowing initial concentrate during the concentration process by utilizing its water absorption and porous properties. Subsequently, the virus is deabsorbed and collected under the extrusion pressure of the column section 41. The pore size of the packing material is set according to the target virus, ensuring that the packing material can be used for virus concentration.

[0038] Below the concentration turntable 441, there is also a guide tube (not shown in the figure) opposite to the column part 41, which is used to guide the cleaning liquid and the waste liquid in the secondary concentration process to the top of the waste liquid bottle 60 in an open shape.

[0039] Specifically, the collection section includes a collection turntable 451 and a reciprocating structure for guiding the secondary concentrate in the concentration hole 443 located directly below the column section 41 to the collection turntable 451. For example... Figure 5 As shown, in this example, the collecting turntable 451 is provided with several collecting holes for placing collecting tubes at intervals around the circumference; the reciprocating moving structure includes a lead screw 453, guide rods 454 provided on the upper and lower sides of the lead screw 453, a motor 452 for driving the lead screw 453 to rotate, and a sliding block 455 threadedly connected to the lead screw 453. The sliding block 455 is also passed through the two guide rods 454. A three-way bottle 456 is provided on the sliding block 455. The three-way bottle 456 is provided with an inlet 4561 at the top, a drain 4562 at the bottom, and an outlet 4563 on one side of the lower part. The outlet 4563 is located at a certain height above the bottom surface of the three-way bottle 456, so that a liquid storage space 4564 with a certain volume is formed at the bottom of the three-way bottle 456. In use, the inlet 4561 and outlet 4563 are opened, and the drain 4562 is closed. The motor 452 drives the three-way bottle 456 to be positioned directly below the column section 41. Under the squeezing action of the column section 41, the secondary concentrate in the concentration hole 443 flows into the storage space 4564 of the three-way bottle 456 through the inlet 4561 for temporary storage, while excess liquid flows away through the outlet 4563. Then, the motor 452 drives the three-way bottle 456 to be positioned above the collection tube, and the drain 4562 is opened, thus completing the quantitative collection of the secondary concentrate. For example, the volume of the storage space 4564 in the three-way bottle 456 is 2 mL.

[0040] In other examples, when quantitative liquid dispensing is not required, the three-way bottle 456 can be replaced with a temporary storage bottle of a certain capacity for secondary concentrate transfer.

[0041] The present invention also provides a method for using an automatic wastewater virus concentration device, comprising the following steps: S1. Perform initial filtration on the wastewater to be concentrated to remove impurities from the wastewater; S2. Place the filtered wastewater to be concentrated into the wastewater tank 20, open the first valve 25, the second valve 26 and the fifth valve 61, and close the third valve 31 and the fourth valve 413, so that a circulation path is formed between the wastewater tank 20 and the left chamber 111 of the ultrafiltration bottle 11, while the right chamber 112 of the ultrafiltration bottle 11 and the waste liquid bottle 60 are connected; turn on the diaphragm pump 21, so that the wastewater in the wastewater tank 20 circulates in the circulation path, while a micro-pressure is formed between the left chamber 111 and the right chamber 112. Under the action of the micro-pressure, the water in the wastewater gradually seeps from the left chamber 111 through the filter membrane into the right chamber 112 and flows to the waste liquid bottle 60. At the same time, the virus in the wastewater is adsorbed on the filter membrane. As the circulation gradually proceeds, the wastewater in the wastewater tank 20 gradually flows into the waste liquid bottle 60, and the virus in the wastewater is adsorbed on the filter membrane as an aggregate with a certain adhesive force. S3. When the sewage is circulated to a certain extent, close the first valve 25, the second valve 26, and the fifth valve 61, open the third valve 31 and the fourth valve 413, start the air compressor 30, so that the compressed gas is blown from the right chamber 112 to the left chamber 111 and continues to be blown along the pipeline to the buffer bottle 50, desorbing the virus on the filter membrane and blowing it into the buffer bottle 50, so that the buffer bottle 50 temporarily contains the preliminary concentrate. S4. Close the air compressor 30, the third valve 31 and the fourth valve 413, and open the sixth valve so that the initial buffer solution in the buffer bottle 50 flows to the column section 41 under the action of gravity. Control the rotation of the concentration turntable 441 until the concentration hole 443 is directly below the column section 41, so that the preliminary buffer solution flows through the column section 41 to the concentration hole 443, the virus in the preliminary concentrated solution is captured by the packing material, and the processed waste liquid flows through the guide tube to the waste liquid bottle 60. Then, the control motor 452 drives the lead screw 453 to rotate, causing the three-way bottle 456 to be positioned directly below the column part 41; the control moving part 42 moves, causing the column part 41 to squeeze the packing in the concentration hole 443, so that the virus is separated from the packing and flows to the three-way bottle 456; then the motor 452 drives the lead screw 453 to rotate, causing the three-way bottle 456 to move directly above the collection bottle, so that the liquid in the three-way bottle 456 flows to the collection tube to obtain secondary concentrate.

[0042] After wastewater concentration is completed, the currently used ultrafiltration bottle 11 is replaced with a cleaning bottle 12. The cleaning bottle 12 is connected to the wastewater tank 20, the column section 41, and the waste liquid bottle 60. Cleaning water is poured into the cleaned wastewater tank 20. The cleaning of each pipeline is controlled by a valve. The cleaning bottle 12 is connected to the compression concentration mechanism 40. When cleaning the compression concentration mechanism 40, the through hole 442 is located directly below the column section 41.

[0043] Regarding the cleaning water used in the cleaning process, you can clean the sewage tank 20 as described above and then pour the cleaning water into the sewage tank 20, or you can directly replace the sewage tank 20 with a cleaning tank containing cleaning water.

[0044] This invention is based on micro-pressure ultrafiltration, which causes viruses to aggregate into aggregates with a certain degree of adhesion. Under pressure during the secondary concentration process, the virus aggregates disperse and detach from the packing material using water adsorbed in the packing material as a carrier, thus achieving secondary concentration of the viruses. By combining micro-pressure ultrafiltration with extrusion concentration, wastewater concentration can be effectively achieved. This avoids the situation where, under high-pressure ultrafiltration, the adhesion between viruses is too strong, preventing the viruses from being dispersed relatively evenly under extrusion pressure. In such cases, a large number of viruses remain stuck together and are intercepted by the packing material during the extrusion process, making it impossible to achieve effective secondary concentration.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An automatic wastewater virus concentration device, characterized in that, include: An ultrafiltration device includes at least one ultrafiltration bottle, wherein a filter membrane is disposed inside the ultrafiltration bottle, dividing it into a left chamber and a right chamber; The wastewater tank is connected to the left chamber via a liquid inflow pipe and a liquid return pipe, forming a circulation path between the ultrafiltration bottle and the wastewater tank; a liquid transfer pump is installed on the liquid inflow pipe to transport liquid and create a pressure difference between the left and right chambers; a first valve and a second valve are respectively installed on the liquid inflow pipe and the liquid return pipe. The air compressor is connected to the right chamber via a third valve; The compression concentration mechanism includes a cylindrical section with an internal water delivery channel communicating with the left chamber of the ultrafiltration bottle, a concentration section with packing material installed below the cylindrical section, a collection section located below the concentration section, and a moving section for controlling the vertical reciprocating movement of the cylindrical section. The diameter of the cylindrical section near the concentration section is smaller than the diameter of the concentration section. A fourth valve is provided on the connecting pipe between the cylindrical section and the left chamber. The waste liquid bottle is connected to the right chamber and the compression concentration mechanism, and a fifth valve is provided on the connecting pipe between the waste liquid bottle and the right chamber.

2. The automatic wastewater virus concentration device according to claim 1, characterized in that: A buffer bottle is also provided between the left chamber of the ultrafiltration bottle and the column body for temporarily storing the preliminary concentrate obtained by the ultrafiltration bottle.

3. The automatic wastewater virus concentration device according to claim 1, characterized in that: Multiple ultrafiltration bottles are arranged side by side, and each ultrafiltration bottle is connected to a sewage tank, an air compressor, a column section, and a waste liquid bottle, thereby forming multiple parallel ultrafiltration channels.

4. The automatic wastewater virus concentration device according to claim 1, characterized in that: The ultrafiltration mechanism also includes a cleaning bottle arranged in parallel with the ultrafiltration bottle. The cleaning bottle is connected to the sewage tank, the column section, and the waste liquid bottle, thus forming a cleaning passage for cleaning the pipeline.

5. The automatic wastewater virus concentration device according to claim 1, characterized in that: The column section has multiple water conveying channels at intervals near the concentration section, which creates a water conveying zone and a squeezing zone on the cross-section of the end of the column section.

6. The automatic wastewater virus concentration device according to claim 1, characterized in that: The concentration section includes a concentration turntable, a through hole provided on the concentration turntable, and at least one concentration hole with packing installed, such that the through hole is in the cleaning position when it is directly below the column section, and the concentration hole is in the concentration position when it is directly below the column section.

7. The automatic wastewater virus concentration device according to claim 6, characterized in that: Below the concentration turntable, there is also an open guide tube opposite to the column section, which guides the cleaning fluid and waste liquid from the secondary concentration process to the top of the waste liquid bottle.

8. The automatic wastewater virus concentration device according to claim 6, characterized in that: The collection section includes a collection turntable and a reciprocating structure for guiding the secondary concentrate in the concentration hole located directly below the column section to the collection turntable.

9. The automatic wastewater virus concentration device according to claim 1, characterized in that: The filler is a porous material that can absorb water.

10. A method of using the automatic wastewater virus concentration device according to claim 1, characterized in that, Includes the following steps: S1. By controlling the valve, a circulation path is formed between the sewage tank and the left chamber of the ultrafiltration bottle, while the right chamber of the ultrafiltration bottle is connected to the waste liquid bottle. S2. Turn on the liquid transfer pump to make the sewage circulate in the circulation path, and at the same time create a pressure difference between the left and right chambers to perform micro-pressure ultrafiltration. S3. When the sewage circulates to a certain extent, the connection between the ultrafiltration bottle and the sewage tank and waste liquid bottle is disconnected by the valve control, so that the left chamber of the ultrafiltration bottle is connected to the column and the right chamber is connected to the air compressor. The air compressor is used to desorb the virus on the filter membrane. Then, the desorbed virus-containing preliminary concentrate flows to the concentration section for secondary concentration using the packing material. Then, the packing material is squeezed by the column section and the secondary concentrate is collected through the collection section.

Images