A wastewater treatment device for environmental monitoring laboratories

Abstract

The present invention belongs to the technical field of wastewater treatment, and specifically discloses a wastewater treatment device for an environmental monitoring laboratory, including a treatment cylinder, a ground-lift bracket fixedly provided on the outside of the treatment cylinder, a water inlet pipe fixedly provided on one side of the lower part of the treatment cylinder, a water outlet pipe fixedly provided on one side of the upper part of the treatment cylinder, a spiral partitioned photocatalytic treatment mechanism coaxially provided inside the treatment cylinder, a pressure-releasing self-sufficient driving mechanism provided at the bottom of the spiral partitioned photocatalytic treatment mechanism, and an ultraviolet lamp provided on the periphery of the treatment cylinder. The present invention keeps the particle carrier away from the grid by rotating the spiral water guide baffle to avoid agglomeration to improve the treatment efficiency, replaces the traditional stirring device, avoids mechanical wear on the carrier, is driven by water flow without additional power, and automatically opens according to pressure to achieve automatic control.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and specifically refers to a wastewater treatment device for an environmental monitoring laboratory. Background Art

[0002] Environmental monitoring laboratories produce wastewater of various types and complex components during experiments such as water quality analysis, soil testing, and air pollutant monitoring. These wastewaters may contain heavy metal ions, organic solvents, pathogenic microorganisms, and other toxic and hazardous substances. If they are not effectively treated, direct discharge will cause serious pollution to the environment and endanger public health. Therefore, it is crucial to develop efficient and reliable laboratory wastewater treatment equipment.

[0003] At present, laboratory wastewater treatment technologies mainly include physical methods, chemical methods and biological methods. However, these traditional methods have problems such as low treatment efficiency, high operating costs and secondary pollution risks. In recent years, photocatalytic water treatment technology has gradually become a research hotspot due to its advantages of efficient degradation of organic pollutants, no secondary pollution and simple operation, and is considered to be a wastewater treatment technology with great potential. Among them, photocatalysts represented by titanium dioxide are widely used in the field of photocatalytic water treatment due to their excellent photocatalytic activity, chemical stability, low cost and non-toxicity. In order to improve the photocatalytic efficiency of titanium dioxide, it is usually loaded on a granular carrier to form a fixed bed reactor. This method increases the effective specific surface area of ​​titanium dioxide and improves the efficiency of the photocatalytic reaction; at the same time, it is convenient for the recycling of the catalyst and reduces the operating cost; and it can achieve continuous operation and improve the treatment efficiency. However, the use of a granular carrier bed also has some defects.

[0004] In order to prevent the granular carrier from being carried away by the water flow, a grid is needed to confine it to a specific area. The granular carrier is prone to agglomeration under long-term water erosion and gather near the grid at the end of the water flow. This agglomeration phenomenon will block the grid, hinder the water flow from passing through the bed evenly, reduce the contact area between titanium dioxide and wastewater, and reduce the contact area with the light source, thereby significantly reducing the photocatalytic efficiency. Severe blockage may even cause the reactor to fail, so tedious cleaning and maintenance are required.

[0005] In order to avoid particle agglomeration and blockage, a stirring device is usually installed in the reactor. However, the introduction of the stirring device increases energy consumption and equipment complexity. In addition, the rotation of the stirring device may also cause mechanical wear on the particle carrier, resulting in the shedding of titanium dioxide and shortening the life of the catalyst. In addition, it is difficult to monitor the blockage of the bed in real time, and it is impossible to accurately control the start-up and operation of the stirring device, resulting in unnecessary energy consumption and carrier wear. Summary of the invention

[0006] In view of the above situation, the present invention provides a wastewater treatment device for an environmental monitoring laboratory. The device can rotate the spiral water guide baffle to keep the particle carrier away from the grid to avoid agglomeration and improve the treatment efficiency. It can replace the traditional stirring device to avoid mechanical wear on the carrier. The device is driven by water flow without additional power and automatically opens according to pressure to achieve automatic control.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a wastewater treatment device for an environmental monitoring laboratory, comprising a treatment cylinder, a ground-lift bracket is fixedly provided on the outer side of the treatment cylinder, a water inlet pipe is connected and fixedly provided on one side of the lower part of the treatment cylinder, a water outlet pipe is connected and fixedly provided on one side of the upper part of the treatment cylinder, a spirally separated photocatalytic treatment mechanism is coaxially provided inside the treatment cylinder, a pressure-releasing self-sufficient driving mechanism is provided at the bottom of the spirally separated photocatalytic treatment mechanism, and an ultraviolet lamp is provided on the periphery of the treatment cylinder.

[0008] Furthermore, the spirally partitioned photocatalytic treatment mechanism includes a rotating shaft, which is coaxially arranged inside the treatment tube, and the upper and lower ends of the rotating shaft are respectively sealed and engaged with the upper and lower walls of the treatment tube for rotation, and a spiral water-guiding baffle is spirally fixed on the outer side of the rotating shaft, and the upper end of the spiral water-guiding baffle is located below the water outlet pipe, and the lower end of the spiral water-guiding baffle is located above the water inlet pipe. The edge of the spiral water-guiding baffle is tightly slidably arranged on the inner wall of the treatment tube, and a permeable grille is fixed between the upper end tail and the lower end head of the spiral water-guiding baffle, and the permeable grille is vertically arranged, perpendicular to the direction of water flow, and evenly distributed between each layer of the spiral water-guiding baffle, the inner edge of the permeable grille is fixedly connected to the rotating shaft, and the outer edge of the permeable grille is tightly slidably arranged on the inner wall of the treatment tube.

[0009] Furthermore, the pressure-releasing self-sufficient drive mechanism includes an impeller, a rotating rod and a sleeve, the impeller circumferential array is fixedly arranged on the outer side of the lower part of the rotating shaft, the impeller is located below the spiral water guide baffle, the rotating rod is vertically fixedly arranged on one side of the lower end of the rotating shaft, the rotating rod is located below the treatment cylinder, the sleeve is connected and fixed and vertically arranged on the outer side of the lower part of the side wall of the treatment cylinder, a sealing piston is tightly and slidingly arranged in the sleeve, a clamping block is fixedly arranged on one end of the sealing piston extending out of the sleeve, a tension spring is sleeved on the outer side of the part of the sealing piston extending out of the sleeve, and the two ends of the tension spring are respectively fixedly connected to the sleeve and the clamping block.

[0010] Furthermore, the clamping block of the tension spring contacts the rotating rod in an initial tension state, and the clamping block can be separated from the rotating rod after the tension spring continues to be stretched.

[0011] Furthermore, the water inlet of the water inlet pipe points to the outside of the impeller, and the clockwise direction in which the impeller is driven by the water flow in the water inlet pipe to rotate is the same as the clockwise direction in which the spiral water guide baffle spirals upward.

[0012] Furthermore, the ultraviolet lamp tubes are arranged vertically, and the circumferential array of the ultraviolet lamp tubes is fixedly arranged outside the treatment tube, and the upper and lower ends of the ultraviolet lamp tubes are respectively flush with the upper and lower ends of the spiral water guide baffle.

[0013] Furthermore, the processing tube is made of transparent material.

[0014] Furthermore, a particle carrier with titanium dioxide attached is filled between each two adjacent permeable grids inside the treatment cylinder.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) The present invention utilizes the ingenious combination of the spiral water-guiding baffle and the permeable grille to achieve effective dispersion of the particle carriers and improve the photocatalytic efficiency. When the particle carriers gather near the permeable grille and cause blockage, thereby causing the water pressure in the treatment tube to increase, the pressure-releasing self-sufficient driving mechanism starts, driving the rotating shaft, the impeller and the spiral water-guiding baffle to rotate together. The rotation of the permeable grille separates it from the gathered particle carriers, relieves the blockage, restores the smooth flow of water, ensures that the wastewater and the particle carriers are fully in contact and effectively carry out the photocatalytic reaction. At the same time, the rotation of the spiral water-guiding baffle also transports the gathered particle carriers downward along the spiral direction, thereby extending the effective use time of the permeable grille and avoiding frequent blockages, thereby significantly improving the photocatalytic efficiency.

[0017] (2) The pressure-releasing self-sufficient drive mechanism of the present invention integrates pressure sensing and driving functions to realize automatic control. When the permeable grille is blocked, the water pressure in the treatment cylinder increases, pushing the sealing piston to move, separating the block from the rotating rod. The release of the rotating rod allows the impeller to rotate under the impetus of the incoming water flow, thereby driving the spiral water guide baffle to rotate and clear the blockage. When the blockage is relieved and the water pressure returns to normal, the sealing piston is reset, the block re-contacts the rotating rod, and the rotation of the impeller and the spiral water guide baffle is stopped. This self-identifying pressure design can automatically start and stop according to actual conditions without manual intervention or additional control systems, thus realizing the intelligent operation of the device.

[0018] (3) The present invention cleverly utilizes the water flow of the water inlet pipe as the driving source, without the need for an additional motor or other power device. This design not only reduces the energy consumption of the device and simplifies the system structure, but also avoids the problems of mechanical wear and titanium dioxide shedding caused by traditional stirring devices, thereby extending the service life of the catalyst, reducing operation and maintenance costs, and making the device more economical, environmentally friendly and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first stereoscopic structural schematic diagram of a wastewater treatment device for an environmental monitoring laboratory proposed by the present invention.

[0020] Figure 2 This is a second stereoscopic structural schematic diagram of a wastewater treatment device for an environmental monitoring laboratory proposed by the present invention.

[0021] Figure 3 This is a top view of a wastewater treatment device for an environmental monitoring laboratory proposed by the present invention.

[0022] Figure 4 The present invention provides a schematic diagram of the three-dimensional structure of a wastewater treatment device for an environmental monitoring laboratory after a treatment cylinder is cut into side sections.

[0023] Figure 5 for Figure 4 Enlarged view of part A.

[0024] Figure 6 for Figure 1 Enlarged view of part B.

[0025] Figure 7 for Figure 2 Enlarged view of part C.

[0026] Figure 8 This is a structural schematic diagram of the position relationship between the water inlet pipe and the impeller of a wastewater treatment device for an environmental monitoring laboratory proposed by the present invention.

[0027] Among them, 1. treatment cylinder, 2. off-ground bracket, 3. water inlet pipe, 4. water outlet pipe, 5. spiral partition type photocatalytic treatment mechanism, 51. rotating shaft, 52. spiral water guide baffle, 53. permeable grille, 6. pressure release self-sufficient driving mechanism, 61. impeller, 62. rotating rod, 63. sleeve, 64. sealing piston, 65. block, 66. tension spring, 7. ultraviolet lamp.

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the present invention proposes a wastewater treatment device for an environmental monitoring laboratory, comprising a treatment tube 1, and a ground-lift bracket 2 is fixedly provided on the outer side of the treatment tube 1. The ground-lift bracket 2 is provided so that the treatment tube 1 is lifted off the ground.

[0032] Among them, a water inlet pipe 3 is fixedly provided on one side of the lower part of the treatment cylinder 1, and a water outlet pipe 4 is fixedly provided on one side of the upper part of the treatment cylinder 1. The water inlet pipe 3 conveys the laboratory wastewater to be treated into the treatment cylinder 1 under pressure through a pressure device. Under the action of pressure, the wastewater can move upward in the treatment cylinder 1 and finally be discharged from the water outlet pipe 4.

[0033] Among them, a spirally separated photocatalytic treatment mechanism 5 is coaxially arranged inside the treatment tube 1, a pressure-releasing self-sufficient driving mechanism 6 is arranged at the bottom of the spirally separated photocatalytic treatment mechanism 5, and an ultraviolet lamp tube 7 is arranged on the periphery of the treatment tube 1, which can emit ultraviolet light as a reaction condition for the photocatalytic reaction.

[0034] Among them, the spirally separated photocatalytic treatment mechanism 5 includes a rotating shaft 51, which is coaxially arranged inside the treatment tube 1, and the upper and lower ends of the rotating shaft 51 are respectively sealed and engaged with the upper and lower walls of the treatment tube 1 for rotation. A spiral water-guiding baffle 52 is spirally fixed on the outer side of the rotating shaft 51, and the upper end of the spiral water-guiding baffle 52 is located below the water outlet pipe 4, and the lower end of the spiral water-guiding baffle 52 is located above the water inlet pipe 3. The edge of the spiral water-guiding baffle 52 is tightly slidably arranged on the inner wall of the treatment tube 1, and a permeable grille 53 is fixedly arranged between the upper tail and the lower head of the spiral water-guiding baffle 52. The permeable grille 53 is vertically arranged, and the permeable grille 53 is perpendicular to the direction of water flow. The permeable grilles 53 are evenly distributed between each layer of the spiral water-guiding baffle 52, and the inner edge of the permeable grille 53 is fixedly connected to the rotating shaft 51, and the outer edge of the permeable grille 53 is tightly slidably arranged on the inner wall of the treatment tube 1.

[0035] The permeable grid 53 is a grid structure that allows water to flow through but does not allow particle carriers to pass through. Through the above arrangement, a relatively closed space is formed between every two adjacent permeable grids 53 to restrict the particle carriers within a specific range of movement.

[0036] Among them, the pressure release self-sufficient driving mechanism 6 includes an impeller 61, a rotating rod 62 and a sleeve 63. The impeller 61 is fixed in a circular array on the outer side of the lower part of the rotating shaft 51. The impeller 61 is located below the spiral water guide baffle 52. The rotating rod 62 is vertically fixed on one side of the lower end of the rotating shaft 51. The rotating rod 62 is located below the treatment cylinder 1. The sleeve 63 is connected and fixed and vertically arranged on the outer side of the lower part of the side wall of the treatment cylinder 1. A sealing piston 64 is tightly and slidingly arranged in the sleeve 63. A clamping block 65 is fixed on one end of the sealing piston 64 extending out of the sleeve 63. A tension spring 66 is sleeved on the outer side of the part of the sealing piston 64 extending out of the sleeve 63. The two ends of the tension spring 66 are respectively fixedly connected to the sleeve 63 and the clamping block 65.

[0037] Through the above arrangement, the sealing piston 64 can sense the water pressure in the treatment cylinder 1. When the water pressure increases, the sealing piston 64 can overcome the tension of the tension spring 66 to extend outward, and reset when the water pressure recovers, thereby changing the relative position of the block 65 and the rotating rod 62.

[0038] Among them, the block 65 of the tension spring 66 is in contact with the rotating rod 62 in the initial tension state. After the tension spring 66 continues to be stretched, the block 65 can be separated from the rotating rod 62, so that the block 65 no longer limits the rotation stroke of the rotating rod 62.

[0039] Among them, the water inlet of the water inlet pipe 3 points to the outside of the impeller 61. This setting can make it easier for the water flow of the water inlet pipe 3 to drive the rotation of the impeller 61. The clockwise direction of the rotation of the impeller 61 driven by the water flow of the water inlet pipe 3 is the same as the clockwise direction of the spiral water guide baffle 52 spiraling upward.

[0040] The ultraviolet lamp tubes 7 are arranged vertically, and a circular array of the ultraviolet lamp tubes 7 is fixedly arranged outside the treatment tube 1. The upper and lower ends of the ultraviolet lamp tubes 7 are respectively flush with the upper and lower ends of the spiral water guide baffle 52, so that the ultraviolet lamp tubes 7 can cover the entire photocatalytic treatment range.

[0041] The treatment tube 1 is made of a transparent material, so that the ultraviolet light can pass through the treatment tube 1 and reach the inside of the treatment tube 1 .

[0042] The inside of the treatment tube 1 is filled with a particle carrier with titanium dioxide attached between each two adjacent permeable grids 53 .

[0043] During specific use, the laboratory wastewater to be treated is conveyed under pressure in the water inlet pipe 3. After entering the treatment tube 1, the wastewater flows upward, and enters the spiral water guide baffle 52 from the bottom permeable grille 53, spirally rises in the closed spiral channel composed of the spiral water guide baffle 52 and the treatment tube 1, and finally flows out from the top permeable grille 53 after passing through each permeable grille 53 one by one, and then continues to flow upward and is discharged from the outlet pipe 4. In this process, the wastewater passes through the particle carriers attached with titanium dioxide between the permeable grilles 53, and the ultraviolet light irradiated by the ultraviolet lamp tube 7 on the outside of the treatment tube 1 causes the wastewater and the carrier to undergo a photocatalytic reaction, thereby purifying the wastewater. After the device has been running for a long time, the particle carriers between adjacent permeable grilles 53 will gather on the surface of the permeable grille 53 at the end of its activity range, thereby causing blockage. It can be seen from the analysis content in the background technology that the occurrence of this phenomenon will affect the normal progress of the photocatalytic reaction, and at this time the pressure release self-sufficient drive mechanism 6 will play a role.

[0044] Initially, since the water-permeable grille 53 is not blocked, the water flow in the treatment tube 1 will flow normally, and the water pressure on the inner end of the sealing piston 64 is the water pressure when the water flows normally. The tension spring 66 is only stretched a certain distance, and the block 65 is in contact with the rotating rod 62 at this time. Since the rotating rod 62, the rotating shaft 51 and the impeller 61 are formed into a whole, and since the block 65 blocks the rotation of the rotating rod 62, the water flow in the water inlet pipe 3 will not be able to drive the impeller 61 to rotate. As the water-permeable grille 53 is blocked, the water pressure in the treatment tube 1 increases, which will push the sealing piston 64 and the block 65 away from the treatment tube 1, so that the block 65 is finally away from the end of the rotating rod 62 and no longer restricts the rotating rod 62, so that the impeller 61 starts to rotate under the push of the water flow, and the spiral water guide baffle 52 rotates synchronously. Since the clockwise direction of the rotation of the impeller 61 driven by the water flow in the water inlet pipe 3 is the same as the clockwise direction of the spiral water guide baffle 52 spiraling upward, the water-permeable grille 53 moves toward the spiral water guide baffle 5 2 The spiral moves upward in the clockwise direction. For ease of understanding, the spiral upward direction is regarded as the front, and the spiral downward direction is regarded as the rear. At this time, the accumulated particle carriers behind the water-permeable grille 53 will be separated from the water-permeable grille 53 under the action of inertia, and based on the spiral conveying function of the spiral water-conducting baffle 52 itself, the particle carriers will be pushed downward by the spiral water-conducting baffle 52. After the spiral water-conducting baffle 52 rotates 360 degrees, the particle carriers are just pushed downward to the front of the water-permeable grille 53 at the rear, and the rotating rod 62 will come to the vicinity of the block 65 again. Since the particle carriers no longer block the water-permeable grille 53 at this time, the water pressure in the treatment cylinder 1 returns to normal. After the block 65 is reset, it blocks the rotating rod 62, so that the rotating rod 62, the rotating shaft 51 and the spiral water-conducting baffle 52 are stationary again, and the particle carriers move very slowly toward the front until the particle carriers block the water-permeable grille 53 in front again, and the pressure-release self-sufficient driving mechanism 6 will be started again.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0047] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A wastewater treatment device for an environmental monitoring laboratory, comprising a treatment cylinder (1), characterized in that: An off-ground bracket (2) is fixedly provided on the outside of the treatment tube (1); a water inlet pipe (3) is fixedly provided on one side of the lower part of the treatment tube (1); a water outlet pipe (4) is fixedly provided on one side of the upper part of the treatment tube (1); a spiral partitioned photocatalytic treatment mechanism (5) is coaxially provided inside the treatment tube (1); a pressure-releasing self-sufficient driving mechanism (6) is provided at the bottom of the spiral partitioned photocatalytic treatment mechanism (5); and an ultraviolet lamp tube (7) is provided on the periphery of the treatment tube (1); The spiral partitioned photocatalytic treatment mechanism (5) comprises a rotating shaft (51), the rotating shaft (51) being coaxially arranged inside the treatment tube (1), the upper and lower ends of the rotating shaft (51) being respectively sealed and engaged with the upper and lower walls of the treatment tube (1) for rotational connection, a spiral water guide baffle (52) being spirally fixedly arranged on the outer side of the rotating shaft (51), the upper end of the spiral water guide baffle (52) being located below the water outlet pipe (4), the lower end of the spiral water guide baffle (52) being located above the water inlet pipe (3), and the side of the spiral water guide baffle (52) being located above the water outlet pipe (4). The edge of the spiral water-guiding baffle (52) is arranged to slide in close contact with the inner wall of the treatment cylinder (1); a water-permeable grille (53) is fixedly provided between the upper tail and the lower head of the spiral water-guiding baffle (52); the water-permeable grille (53) is arranged vertically, the water-permeable grille (53) is perpendicular to the direction of water flow, the water-permeable grille (53) is evenly distributed between each layer of the spiral water-guiding baffle (52); the inner edge of the water-permeable grille (53) is fixedly connected to the rotating shaft (51); and the outer edge of the water-permeable grille (53) is arranged to slide in close contact with the inner wall of the treatment cylinder (1); The pressure release self-contained drive mechanism (6) comprises an impeller (61), a rotating rod (62) and a sleeve (63). The impeller (61) is fixedly arranged in a circumferential array on the outer side of the lower part of the rotating shaft (51). The impeller (61) is located below the spiral water guide baffle (52). The rotating rod (62) is vertically fixedly arranged on one side of the lower end of the rotating shaft (51). The rotating rod (62) is located below the treatment barrel (1). The sleeve (63) is connected and fixed and vertically arranged on the outer side of the lower part of the side wall of the treatment barrel (1). A sealing piston (64) is tightly and slidably arranged in the sleeve (63). A clamping block (65) is fixedly arranged at one end of the sealing piston (64) extending out of the sleeve (63). A tension spring (66) is sleeved on the outer side of the portion of the sealing piston (64) extending out of the sleeve (63). The two ends of the tension spring (66) are respectively fixedly connected to the sleeve (63) and the clamping block (65).

2. A wastewater treatment device for an environmental monitoring laboratory according to claim 1, characterized in that: When the tension spring (66) is in an initial tension state, the clamping block (65) contacts the rotating rod (62); after the tension spring (66) continues to be stretched, the clamping block (65) can be separated from the rotating rod (62).

3. A wastewater treatment device for an environmental monitoring laboratory according to claim 2, characterized in that: The water inlet of the water inlet pipe (3) points to the outside of the impeller (61), and the clockwise direction in which the impeller (61) is driven by the water flow in the water inlet pipe (3) is the same as the clockwise direction in which the spiral water guide baffle (52) spirals upward.

4. A wastewater treatment device for an environmental monitoring laboratory according to claim 3, characterized in that: The ultraviolet lamp tubes (7) are arranged vertically, and the ultraviolet lamp tubes (7) are fixedly arranged in a circular array outside the treatment tube (1), and the upper and lower ends of the ultraviolet lamp tubes (7) are respectively flush with the upper and lower ends of the spiral water guide baffle (52).

5. A wastewater treatment device for an environmental monitoring laboratory according to claim 4, characterized in that: The processing tube (1) is made of a transparent material.

6. A wastewater treatment device for an environmental monitoring laboratory according to claim 5, characterized in that: A particle carrier with titanium dioxide attached is filled between each two adjacent water-permeable grids (53) inside the treatment cylinder (1).

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