A device for efficiently degrading new pollutants in surface water

Abstract

The application relates to a device for efficiently degrading new pollutants in surface water, and relates to the technical field of water treatment, which comprises a device shell, an annular quartz sleeve is arranged in the inside of the device shell, an LED light source is fixed at the middle position of the device shell, and the annular quartz sleeve is arranged outside the LED light source. In the application, the LED light source is arranged at the center of the annular quartz sleeve, and the sleeve adopts a spiral ring structure, so that the water flow path contact time with the light source is effectively prolonged, the water to be treated can sufficiently absorb light energy, and the efficiency of photocatalytic degradation of new pollutants (such as antibiotics, pesticides and the like) is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a device for efficiently degrading new pollutants in surface water. Background Technology

[0002] With the acceleration of global industrialization and urbanization, and changes in lifestyles, emerging pollutants (ECs) in surface water have become a new challenge for water pollution. These ECs include antibiotics, endocrine disruptors, pesticides and their metabolites, and perfluorinated compounds. These substances often exist in water bodies in trace amounts, are persistent, and difficult to degrade, continuously entering natural water bodies through industrial emissions, agricultural pollution, urban sewage, and wastewater treatment plant discharges. According to relevant studies, these pollutants in the aquatic environment are characterized by low concentrations (ng / L-μg / L), high persistence, and diverse pollution sources, often posing a hidden threat to ecosystems and human health while persisting for a long time. The presence of ECs not only affects the health of aquatic ecosystems but may also accumulate through the food chain, leading to toxic reactions in organisms.

[0003] While conventional water treatment processes, such as coagulation sedimentation and ultraviolet disinfection, have achieved some success in removing suspended solids and some common pollutants (such as organic matter and nitrogen and phosphorus compounds) from water, existing technologies are often ineffective against the complex nature of new pollutants. These new pollutants have stable molecular structures and are difficult to biodegrade or transform, resulting in low removal rates by conventional water treatment processes and posing a risk of secondary pollution (such as the formation of intermediate products and toxicity rebound). Therefore, there is an urgent need to develop new water treatment technologies and devices for the efficient degradation of new pollutants in surface water.

[0004] In existing technologies, secondary pollution of water is usually not detected, leading to the contaminated water entering daily life after being treated by water treatment devices. Various hazardous substances accumulate in the user's body, and long-term use can affect the user's life safety. If it is tested separately, it will increase the cost of water treatment, and secondary pollution of water is difficult to clean up further. Summary of the Invention

[0005] The purpose of this invention is to provide a device for efficiently degrading new pollutants in surface water.

[0006] The technical problem solved by this invention is to address the difficulty in cleaning up water that has been subject to secondary pollution in existing technologies.

[0007] The present invention can be achieved through the following technical solution: a device for efficiently degrading new pollutants in surface water, comprising a device shell, an annular quartz sleeve disposed inside the device shell, an LED light source fixed in the middle of the device shell, and the annular quartz sleeve surrounding the LED light source.

[0008] A further technical improvement of the present invention is that: the device housing is provided with a magnetic rod array for realizing the magnetic adsorption function, and the magnetic rod array is uniformly arranged at the output end of the annular quartz sleeve.

[0009] A further technical improvement of the present invention is that: a filter screen is provided at the output end of the magnetic rod array, a water inlet is installed at the input end of the device housing, a water inlet is provided on the water inlet via a valve, and a peristaltic pump is installed on the water inlet.

[0010] A further technical improvement of the present invention is that: a support base is provided inside the outer shell of the device, the support base is installed at the output end of the longitudinal component, the annular quartz sleeve includes several sets of spiral pipes, the LED light source adopts a spiral rotating lamp tube, the rotating lamp tube and the spiral pipes cooperate, and the rotating lamp tube can be rotatably installed on the support base.

[0011] A further technical improvement of the present invention is that: the rotating lamp tube is fixedly installed on the rotating shaft, the rotating shaft is fixedly installed on the rotating base, the rotating base and the supporting base are rotatably connected, and the rotating base is driven by a power device.

[0012] A further technical improvement of the present invention is that: the power equipment includes an active motor, the active motor is driven and connected to an active gear, a fixed rotating shaft is fixed on the rotating base, a mating gear is fixed on the fixed rotating shaft, and the active gear controls the mating gear through meshing with the mating gear.

[0013] A further technical improvement of the present invention is that: a movable base is fixed on the support base, a hoisting rope is fixed on the movable base, a limit slide bar is fixed on the support base, the limit slide bar is slidably connected to the frame, and the hoisting rope is controlled by hoisting equipment.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This application places the LED light source in the center of the annular quartz sleeve, and the sleeve adopts a spiral annular structure, which effectively extends the contact time between the water flow path and the light source, ensuring that the water to be treated can fully absorb light energy, and significantly improving the efficiency of photocatalytic degradation of new pollutants (such as antibiotics, pesticides, etc.).

[0015] 2. The device of this application integrates photocatalysis, magnetic adsorption (magnetic rod array 12), and physical filtration (filter screen 13). After the initial degradation by photocatalysis, the magnetic rod array can adsorb magnetic impurities or catalyst particles, and the filter screen further traps precipitates, achieving multi-stage purification and reducing the risk of secondary pollution.

[0016] 3. Data from the embodiments of this application show that the device can achieve a 100% removal rate for pesticides such as cymoxanil, metalaxyl, and isoprothiolane; a near-100% removal rate for new pollutants such as antibiotics, bisphenol A (BPA), and diethyl phthalate (DEP) within 240 minutes; and a 98.54% removal rate for recalcitrant perfluorinated compounds (PF) within 720 minutes, demonstrating broad-spectrum and highly efficient removal capabilities.

[0017] 4. This application controls the influent flow rate through a peristaltic pump and sets up a material dosing chamber to assist chemical precipitation; the control center supports remote control of LED light source and operating parameters, which facilitates the adjustment of treatment conditions according to different water qualities and adapts to the dynamic changes of low concentration and multiple types of new pollutants in surface water.

[0018] 5. The rotating lamp tube and spiral pipe of this application adopt a rotatable and liftable separation design (achieved through a rotating base, a movable base, and hoisting ropes). After long-term operation, the lamp tube and pipe can be separated to thoroughly clean the catalytic impurities or biofilm adhering to the inner wall of the pipe, avoiding secondary release caused by the accumulation of pollutants and ensuring the stability of long-term treatment effect.

[0019] 6. This application uses a spiral LED tube that is tightly fitted with a spiral pipe, and the tube can rotate, so that the light energy is distributed more evenly in the water. Compared with traditional ultraviolet lamps, LED light sources have low energy consumption and long lifespan, making them suitable for continuous operation of surface water treatment scenarios.

[0020] 7. The control center of this application can be connected to external network devices to realize remote control of operations such as starting and stopping the light source, driving the rotation of the power equipment (active motor), and hoisting and lifting, thereby reducing manual intervention and improving operation and management efficiency.

[0021] 8. Through LC-MS detection and removal rate-time curve analysis in the application examples, this application shows that the device exhibits a "fast at first, slow later" pattern in the removal of various new pollutants, and achieves the ideal effect within a few hours. The data shows that it has predictable and repeatable high efficiency under optimized conditions (such as material dosage ≥0.1g / L and rotation speed 600r / min). Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the spiral pipe structure of the present invention; Figure 3 This is a schematic diagram showing the relative positions of the spiral pipe and the rotating lamp tube in this invention; Figure 4 This is a schematic diagram of the installation of the rotating lamp tube according to the present invention.

[0024] In the diagram: 1. Inlet; 2. Valve; 3. Inlet chamber; 4. Material feeding chamber; 5. LED light source; 6. Power supply; 7. Control center; 8. Device outlet; 9. Annular quartz sleeve; 10. Peristaltic pump; 11. Filter valve; 12. Magnetic rod array; 13. Filter screen; 14. Outlet; 15. Support base; 16. Vertical lamp tube; 17. Spiral pipe; 18. Connecting pipe; 19. Movable base; 20. Rotating base; 21. Rotating shaft; 22. Rotating lamp tube; 23. Matching gear; 24. Meshing gear; 25. Limiting slide bar; 26. Lifting rope; 27. Adjustable limiting base; 28. Drive motor; 29. ​​Drive gear; 30. Fixed rotating shaft. Detailed Implementation

[0025] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0026] Please see Figure 1-4 As shown, a device for efficiently degrading new pollutants in surface water includes a housing with an annular quartz sleeve 9 inside. An LED light source 5 is fixed in the middle of the housing. The annular quartz sleeve 9 surrounds the LED light source 5. In use, water to be purified passes through the annular quartz sleeve 9, and the LED light source 5 performs preliminary purification on the water. This allows for photocatalytic treatment of the water, reducing the impurity content. In this application, the annular quartz sleeve 9 is made of transparent glass, which allows the light source to penetrate and catalyze the water. The annular quartz sleeve 9 is spiral-shaped, ensuring that the water to be purified can fully contact the light source within the housing of a certain size, thus ensuring sufficient contact time between the water and the light source and further guaranteeing thorough purification of the water.

[0027] As a further embodiment of this application, the device housing is divided into two areas, one of which is a magnetic rod array 12 for realizing the magnetic adsorption function. The magnetic rod array 12 is uniformly arranged at the output end of the annular quartz sleeve 9. Water that has been treated by the annular quartz sleeve 9 is transferred to the magnetic rod array 12, and the water is further processed by the adsorption treatment of the magnetic rod array 12.

[0028] Furthermore, a filter screen 13 is provided at the output end of the magnetic rod array 12. The filter screen 13 is used to collect the water after it has been adsorbed by the magnetic rod array 12. The filter screen 13 is used to filter out the impurities that have separated from the water, thereby ensuring the purity of the water.

[0029] Furthermore, a water inlet chamber 3 is installed at the input end of the device casing. The water inlet chamber 3 is equipped with a water inlet 1 through a valve 2. A peristaltic pump 10 is installed on the water inlet 1. During use, the presence of the peristaltic pump 10 enables water to be input from the water inlet 1 into the water inlet chamber 3, thereby realizing the input of water flow.

[0030] Furthermore, a material addition chamber 4 for water treatment is provided on the top of the device casing. The material addition chamber 4 is used to add water purification chemicals. By contacting the chemicals with the water, impurities in the water are removed. For example, by contacting the chemicals with the water, soluble impurities in the water are turned into flocculent or granular precipitates, which are then easily filtered out.

[0031] Furthermore, a control center 7 is also provided on the side of the device housing to control the power supply 6, thereby controlling the LED light source 5 to turn on and off. Using the control circuit in the control center 7, remote control of the control center 7 can be achieved through external network control devices, further enabling the turning of the LED light source 5 on and off.

[0032] Furthermore, a water outlet 14 is provided on the side of the device housing. The water outlet 14 is connected to the output end of the annular quartz sleeve 9 to discharge the water after the adsorption photocatalytic reaction. At the same time, a water filter valve 11 is provided at the output end of the water outlet 14 for preliminary water treatment, and after treatment, the water is discharged to the position of the magnetic rod array 12 for further treatment.

[0033] The above technical solution includes the following embodiments: Application Example 1 10g of material was added to 100L of surface water and reacted for 3 hours at room temperature and with stirring at 400r / min to obtain a purified water sample.

[0034] Application Example 2 Add 10g of material to 100L of surface water and react for 3 hours at room temperature and stirring at 500r / min to obtain a purified water sample.

[0035] Application Example 3 Add 10g of material to 100L of surface water and react for 3 hours at room temperature and stirring at 600r / min to obtain a purified water sample.

[0036] Application Example 4 Add 8g of material to 100L of surface water and react for 3 hours at room temperature and stirring at 600r / min to obtain a purified water sample.

[0037] Application Example 5 12g of material was added to 100L of surface water and reacted for 3 hours at room temperature and with stirring at 600r / min to obtain a purified water sample.

[0038] The purified water samples obtained in Examples 1-5 were measured by LC-MS, and the pesticide removal rate was calculated. The results are shown in Table 1 below. Table 1

[0039] As can be seen from the data in Table 1, when the device for efficiently degrading new pollutants in surface water prepared by the present invention is used to remove pesticides from water bodies, the material dosage is suitable for water samples with a concentration of ≥0.1g / L. Below this concentration, its removal rate of pesticides will decrease; and the rotation speed needs to be maintained at 600r / min.

[0040] Comparative Example 1 The comparative sample is an antibiotic, denoted as AT.

[0041] Comparative Example 2 This comparative example is a perfluorinated compound, denoted as PF.

[0042] Comparative Example 3 The comparative example is bisphenol A, denoted as BPA.

[0043] Comparative Example 4 The comparative example is diethyl phthalate, denoted as DEP.

[0044] The performance of the materials obtained from Application Example 3 and Comparative Examples 1-4 was tested. 10g of the material was added to 100L of surface water sample. After the reaction was fully treated at a speed of 600r / min, the concentration of pollutants in the water sample was measured by LC-MS at time points of 10min, 30min, 60min, 120min, 180min, 240min, 360min and 720min respectively, and the pesticide removal rate was calculated. The removal rate-time curve was recorded. The test results are shown in Table 2 and Figure 2 As shown: Table 2

[0045] As shown in Table 2, the device for efficiently degrading new pollutants in surface water prepared in this invention exhibits excellent removal performance for a variety of new pollutants. Compared to pesticides, the device shows higher removal efficiency for BPA and DEP, which may be related to the properties of these pollutants. Perfluorinated compounds, on the other hand, show the lowest removal rate because the CF chain is extremely stable, requiring stronger oxidizing power. Furthermore, the large variety of perfluorinated compounds may contribute to the overall decrease in removal rate.

[0046] In actual measurements, the four curves of Example 2 and Comparative Examples 1-4 all showed a "fast at first, slow later" trend, and the level differences were not significant. Comparative Example 1 maintained a high removal rate for antibiotics, achieving 100% removal in 240 minutes. Comparative Example 2 had a lower removal rate for perfluorinated compounds, with a removal rate of 81.56% in the first 60 minutes, rising to 88.15% in 120 minutes, and then gradually increasing to 98.54% in 720 minutes. Comparative Example 3 had the best removal rate for BPA, reaching 91.71% in 60 minutes, 97.18% in 120 minutes, and achieving 100% removal in 240 minutes. Comparative Example 4 also had a high removal rate for DEP, reaching 90.06% in 60 minutes, 96.52% in 120 minutes, and achieving 100% removal in 240 minutes.

[0047] As another embodiment of this application, it also includes a support base 15, wherein a plurality of vertical lamp tubes 16 are uniformly fixed at the bottom of the support base 15, wherein the vertical lamp tubes 16 are LED light sources 5 of the same material, and a spiral pipe 17 is provided on the outside of the vertical lamp tubes 16. The spiral pipe 17 is an annular quartz sleeve 9 of the same material, wherein the spiral size of the spiral pipe 17 is smaller than the spiral size of the annular quartz sleeve 9.

[0048] Furthermore, a connecting pipe 18 is fixed between adjacent spiral pipes 17. During use, the full contact between the spiral pipes 17 and the vertical lamp tube 16 enables the water to undergo sufficient photocatalytic treatment. At the same time, because it is equipped with several sets of spiral pipes 17, it can fully realize photocatalysis.

[0049] Furthermore, to further ensure the photocatalytic treatment of water, the original vertical lamp tube 16 is replaced with a rotating lamp tube 22 in this application. During use, the rotating lamp tube 22 cooperates with the spiral pipe 17, ensuring full contact between them. The rotating lamp tube 22 is fixedly mounted on a rotating shaft 21, which is in turn fixedly mounted on a rotating base 20. The rotating base 20 is rotatably connected to a support base 15. A movable base 19 is fixed to the support base 15, and the longitudinal height of the movable base 19 can be adjusted... In this application, the rotation of the rotating base 20 drives the rotation of the rotating shaft 21, thereby causing the rotating lamp tube 22 and the spiral pipe 17 to rotate accordingly. At the same time, the longitudinal movement of the moving base 19 enables the separation of the rotating lamp tube 22 and the spiral pipe 17, and further enables the cleaning of the spiral pipe 17. That is, after the spiral pipe 17 is separated from the rotating lamp tube 22, the spiral pipe 17 can be disassembled, avoiding the problem of difficult removal of catalytic impurities adhering inside, thereby enabling the spiral pipe 17 to be thoroughly cleaned.

[0050] Furthermore, to achieve the rotation of the rotating lamp tube 22, a drive motor 28 is fixed on the support base 15, and the drive motor 28 drives a drive gear 29. A fixed rotating shaft 30 is fixed on the rotating base 20, and the rotating base 20 and the support base 15 are rotatably connected. A mating gear 23 is fixed on the fixed rotating shaft 30, and a meshing gear 24 is side-engaged with the drive gear 29. The meshing gear 24 is rotatably connected to the support base 15, and the meshing gear 24 is also side-engaged with the mating gear 23. In this application, to achieve the rotation of the rotating lamp tube 22, the rotation of the drive motor 28 is used to control the rotation of the drive gear 29, thereby controlling the rotation of the adjacent meshing gear 24, which in turn controls the rotation of the rotating base 20, driving the rotation of the rotating shaft 21, so that the rotating lamp tube 22 and the spiral pipe 17 can rotate relative to each other.

[0051] To achieve the longitudinal movement of the rotating lamp tube 22, a movable base 19 is fixed on the support base 15, a hoisting rope 26 is fixed on the movable base 19, an adjustable limiting base 27 is fixed on the fixed frame, and a limiting slide rod 25 is fixed on the support base 15. The limiting slide rod 25 and the adjustable limiting base 27 are slidably connected. In this application, the hoisting equipment is used to reel in the hoisting rope 26, thereby controlling the longitudinal movement of the support base 15 under the action of the limiting slide rod 25, so that the support base 15 moves in the direction of the adjustable limiting base 27, thereby controlling the height of the rotating lamp tube 22.

[0052] In use, this invention allows water to be purified to pass through an annular quartz sleeve 9, and the LED light source 5 to perform preliminary purification. This enables photocatalytic treatment of the water, reducing the impurity content. In this application, the annular quartz sleeve 9 is made of transparent glass, which allows the light source to penetrate and catalyze the water. The spiral annular sleeve 9 ensures that the water to be purified can fully contact the light source within the device housing of a certain size, thus ensuring sufficient contact time between the water and the light source and further guaranteeing thorough purification of the water.

[0053] In the second embodiment, the rotation of the rotating base 20 drives the rotation of the rotating shaft 21, thereby causing the rotating lamp tube 22 and the spiral pipe 17 to rotate accordingly. Simultaneously, the longitudinal movement of the moving base 19 enables the separation of the rotating lamp tube 22 and the spiral pipe 17, further allowing for the cleaning of the spiral pipe 17. That is, after the spiral pipe 17 is separated from the rotating lamp tube 22, it can be disassembled, avoiding the problem of difficult removal of catalytic impurities adhering inside, thus enabling thorough cleaning of the spiral pipe 17.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A device for efficiently degrading new pollutants in surface water, characterized in that: The device includes a housing, inside which is provided an annular quartz sleeve (9), and an LED light source (5) is fixed in the middle of the housing. The annular quartz sleeve (9) surrounds the outside of the LED light source (5).

2. The device for efficiently degrading new pollutants in surface water according to claim 1, characterized in that, The device housing is provided with a magnetic rod array (12) for achieving magnetic adsorption function. The magnetic rod array (12) is evenly arranged at the output end of the annular quartz sleeve (9).

3. The device for efficiently degrading new pollutants in surface water according to claim 2, characterized in that, The output end of the magnetic rod array (12) is provided with a filter screen (13), the input end of the device housing is provided with a water inlet (3), the water inlet (3) is provided with a water inlet (1) through a valve (2), and a peristaltic pump (10) is installed on the water inlet (1).

4. The device for efficiently degrading new pollutants in surface water according to claim 1, characterized in that, The device housing is provided with a support base (15), which is installed at the output end of the longitudinal component. The annular quartz sleeve (9) includes several sets of spiral pipes (17). The LED light source (5) adopts a spiral rotating lamp tube (22). The rotating lamp tube (22) and the spiral pipes (17) cooperate. The rotating lamp tube (22) can be rotatably installed on the support base (15).

5. The device for efficiently degrading new pollutants in surface water according to claim 4, characterized in that, The rotating lamp tube (22) is fixedly installed on the rotating shaft (21), the rotating shaft (21) is fixedly installed on the rotating base (20), the rotating base (20) and the support base (15) are rotatably connected, and the rotating base (20) is driven by a power device.

6. The device for efficiently degrading new pollutants in surface water according to claim 5, characterized in that, The power equipment includes an active motor (28), which drives an active gear (29). A fixed rotating shaft (30) is fixed on the rotating base (20), and a mating gear (23) is fixed on the fixed rotating shaft (30). The active gear (29) controls the mating gear (23) through meshing with the meshing gear (24).

7. The device for efficiently degrading new pollutants in surface water according to claim 4, characterized in that, A movable base (19) is fixed on the support base (15), a hoisting rope (26) is fixed on the movable base (19), a limit slide rod (25) is fixed on the support base (15), the limit slide rod (25) is slidably connected to the frame, and the hoisting rope (26) is controlled by the hoisting equipment.

Images