A device and complete set of equipment for catalytic oxidation to remove new pollutants

Abstract

This invention discloses a device and complete set of equipment for catalytic oxidation removal of new pollutants, used for water purification. The device includes an outer tube, a reagent delivery assembly, and an ultraviolet light source. The inlet of the outer tube is connected to an external water body. The ultraviolet light source is located inside the outer tube, and an annular gap cavity is formed between the inner wall of the outer tube and the ultraviolet light source. The reagent delivery assembly is used to deliver external oxidant into the annular gap cavity. The reagent delivery assembly includes a reagent distributor, which is located inside the annular gap cavity and has multiple reagent outlets along the axial direction of the outer tube. By introducing oxidant into the water body at different locations, the input amount and distribution uniformity of the oxidant are improved. The oxidant reacts with ultraviolet light at various locations within the annular gap cavity to generate a high concentration of active free radicals, thereby improving the purification effect and efficiency of the water body.

Description

Technical Field

[0001] This invention relates to an apparatus and complete set of equipment for the catalytic oxidation removal of new pollutants. Background Technology

[0002] Ultraviolet lamps are environmentally friendly, pollution-free, and highly efficient water purification and disinfection devices. They come in various forms and categories, with the most common being the ultraviolet lamp tubes commonly used in water purification facilities for ultraviolet disinfection. Due to their ease of implementation, simple operation, and significant effects, they have a very wide range of applications.

[0003] The aforementioned ultraviolet lamps can emit ultraviolet light with a short wavelength (λ < 400 nm). Ultraviolet light can not only rapidly denature proteins, thereby effectively killing almost all bacteria and pathogens in the water, but also, when the wavelength is short and the dosage is large, it can directly photolyze organic matter in the water (reactions 1-4).

[0004] R + hν(λ < 185nm) → R * (1)

[0005] R * →·R1+·CH2CH3 (2)

[0006] ·R1+hν(λ<185nm)→·I i (i = 1, 2, ..., n) (3)

[0007] ·I i +·I i →P (4)

[0008] Building upon conventional ultraviolet lamp disinfection and water purification technology, a highly efficient water purification technology synergistically incorporating ultraviolet light and semiconductor photocatalytic materials has been developed. This technology effectively stimulates the generation of reactive free radicals such as hydroxyl radicals (·OH) in water. Through the addition, substitution, electron transfer, and bond breaking interactions between these reactive free radicals and organic compounds, large organic molecules are degraded into smaller molecules, or even directly into carbon dioxide (CO2) and water (H2O), thus achieving water purification. These reactive free radicals also include excited-state oxygen atoms (O... 1 D) Superoxide radicals (HO2) ·- / O2 ·- Singlet oxygen (1O2), etc., also have strong oxidizing properties and can undergo mineralization reactions similar to ·OH to achieve water purification (reactions 5-8).

[0009] H₂O + hν → ·OH + ·H (5)

[0010] R+·OH→ROH (6)

[0011] R+·OH→·R+H2O (7)

[0012] R n +·OH→R n-1 +OH - (8)

[0013] Related studies have shown that the combined use of multiple oxidants and ultraviolet photocatalysis technology can further improve the disinfection and purification efficiency of water bodies, achieving significant improvements compared to using a single oxidant or ultraviolet photocatalysis alone. For example, the reaction of ozone with organic matter is selective and cannot completely decompose organic matter into CO2 and H2O; however, the combined use of ozone and ultraviolet photocatalysis technology can effectively improve the oxidation rate and efficiency. The working principle of the combined use of ozone and ultraviolet photocatalysis technology for water purification and deodorization is shown in reaction formula 9-11, where O3 represents ozone, UV represents ultraviolet radiation, hv represents photolysis, and O3 represents ozone. 1 D represents an excited-state oxygen atom, ·OH represents a hydroxyl radical, and H2O2 represents hydrogen peroxide.

[0014] O3+UV(or hν, λ<310nm)→O2+O( 1 D) (9)

[0015] O( 1 D) + H₂O → ·OH + ·OH → H₂O₂ (in water) (10)

[0016] O( 1 D) + H₂O → ·OH + ·OH (humid air) (11)

[0017] For example, the combined use of ozone and hydrogen peroxide can also produce a coupling enhancement effect, and its reaction principle is shown in reaction formula (12).

[0018] 2O3 + H2O2 → ·OH + ·OH + 3O2 (12)

[0019] Chlorine dioxide and hydrogen peroxide react to produce hypochlorous acid, a strong oxidizing agent.

[0020] 2ClO2 + H2O2 → 2HClO2 + O2 (13)

[0021] The combined use of hydrogen peroxide and ultraviolet photocatalysis also has a coupling enhancement effect:

[0022] H2O2+UV (or hν, λ≈200~280nm)→·OH+·OH (14)

[0023] Another example is the combination of chlorine dioxide solution and ultraviolet light (R represents organic reactant, R* represents organic reaction product):

[0024] R + ClO2 → R* +ClO2 - (15)

[0025] ClO2 - +hν(λ<300nm)→2O( 1 D)+Cl - (16)

[0026] However, on the one hand, the ultraviolet lamps in existing water purification facilities only perform ultraviolet disinfection, failing to fully utilize the inherent energy of the ultraviolet lamps to achieve the water purification effect of ultraviolet photocatalysis. On the other hand, existing ultraviolet lamps for disinfection are usually encapsulated with a quartz tube for protection, with the water in direct contact with the outer wall of the tube. The ultraviolet lamps generate high temperatures during long-term operation, causing the outer wall of the tube to easily accumulate scale, making cleaning very difficult. Summary of the Invention

[0027] The technical problem to be solved by the present invention is to overcome the defects of the prior art in water purification, which is that the uneven distribution of reagents causes uneven concentration distribution of active free radicals in the water and poor purification effect. The present invention provides a device and complete set of equipment for catalytic oxidation to remove new pollutants.

[0028] The present invention solves the above-mentioned technical problems through the following technical solution:

[0029] A device for catalytic oxidation to remove new pollutants for water purification includes an outer tube, a reagent delivery assembly, and an ultraviolet light source. The inlet of the outer tube is connected to an external water body, and the ultraviolet light source is disposed inside the outer tube. An annular gap cavity is formed between the inner wall of the outer tube and the ultraviolet light source. The reagent delivery assembly is used to deliver an external oxidant into the annular gap cavity.

[0030] The drug delivery assembly includes a drug dispenser disposed within the annular gap cavity, and the drug dispenser has multiple drug outlets arranged axially on the outer tube.

[0031] In this design, an annular gap cavity is formed between the inner wall of the outer tube and the outer wall of the ultraviolet light source. Water enters this annular gap cavity through the inlet of the outer tube. Within this annular gap cavity, the combined action of the ultraviolet light source and the oxidant effectively stimulates the generation of reactive free radicals such as hydroxyl radicals in the water. These reactive free radicals then interact with organic compounds in the water through addition, substitution, electron transfer, and bond breaking, causing large organic molecules to degrade into smaller molecules, or even directly into carbon dioxide and water, thus achieving water purification. The reagent dispenser has multiple reagent outlets along the axial direction of the outer tube, repeatedly introducing the oxidant into the water. This increases the input amount and distribution uniformity of the oxidant, resulting in a high concentration of reactive free radicals generated at various locations within the annular gap cavity through reaction with ultraviolet light. The generated reactive free radicals are confined within this annular gap cavity, increasing their contact with pollutants such as organic compounds in the water, thus enriching the reactive free radicals and improving the purification effect and efficiency.

[0032] Preferably, the drug delivery assembly includes a plurality of drug dispensers, which are respectively disposed at different positions in the circumferential direction of the annular gap cavity.

[0033] In this scheme, multiple reagent dispensers are set at different positions along the circumference of the annular gap cavity. Oxidant is introduced into the water at different positions along the circumference of the annular gap cavity, which further improves the input amount of oxidant and the uniformity of oxidant distribution. Sufficient oxidant at different positions along the circumference of the annular gap cavity is excited to produce active free radicals under the excitation of high-intensity ultraviolet light, which increases the production of active free radicals and the uniformity of their distribution in the annular gap cavity, thereby improving the purification effect and efficiency of the water.

[0034] Preferably, the drug delivery assembly includes a plurality of connecting tubes, which are connected one-to-one with the drug dispenser. The plurality of connecting tubes extend into the outer tube at different positions in the circumference of the outer tube and are connected to the drug dispenser.

[0035] In this design, by setting multiple connecting pipes that are one-to-one connected to the reagent distributor, it is beneficial to ensure that the reagent distributor can output a sufficient amount of oxidant into the annular gap cavity, ensuring uniform distribution of the oxidant. The connecting pipes extend into the outer tube at different positions around its circumference, allowing them to connect to the nearest reagent distributor. This reduces the required length of the connecting pipes inside the outer tube, avoids interference between multiple connecting pipes, and facilitates the assembly of the device for catalytic oxidation removal of new pollutants.

[0036] Preferably, the drug delivery assembly includes a plurality of connecting tubes, each of which is connected to each of the drug dispensers at the midpoint of the drug dispenser in the axial direction.

[0037] In this design, the connection point between the connecting pipe and the reagent distributor is located at the midpoint of the reagent distributor along its axial direction. The connection point is equidistant from both ends of the reagent distributor along the axial direction of the outer pipe. This facilitates the uniform flow of the oxidant through the reagent distributor to both ends. Furthermore, the oxidant is output into the water body through multiple reagent outlets along the axial direction of the outer pipe, which improves the uniformity of oxidant distribution and thus enhances the purification effect of the ultraviolet catalytic device on the water.

[0038] Preferably, the agent outlet is a agent nozzle, and the agent nozzle is rotatably connected to the agent dispenser.

[0039] In this design, the reagent nozzle can pressurize and spray the oxidant, increasing the efficiency of mixing between the oxidant and the water. By rotating, the nozzle can input the oxidant into the water from different directions through the reagent distributor. Oxidant can be input into the water at various positions within the annular gap cavity, eliminating the need for water flow to carry the oxidant for uniform distribution. This allows for uniform mixing even at low flow rates and enables the oxidant to be delivered to designated locations as needed, improving the uniformity of oxidant distribution and thus enhancing the water purification effect of the catalytic oxidation device for removing new pollutants.

[0040] Preferably, the ultraviolet light source includes multiple ultraviolet lamps, which are parallel to the axial direction of the outer tube and spaced apart from each other.

[0041] In this scheme, by setting up multiple ultraviolet lamps parallel to the axis of the outer tube, the distribution density of ultraviolet light irradiation is increased. This is beneficial for the oxidant to generate more and faster active free radicals under the action of ultraviolet light, thereby improving the purification effect and efficiency of the device for catalytic oxidation to remove new pollutants on water.

[0042] Preferably, at least one of the ultraviolet lamps is disposed between any two adjacent drug dispensers.

[0043] In this scheme, by increasing the distribution density of ultraviolet light source irradiation and the amount of oxidant input, the coupling effect between ultraviolet light and oxidant is enhanced, thereby increasing the generation of active free radicals and improving the purification effect and efficiency of the device for catalytic oxidation removal of new pollutants on water.

[0044] Preferably, the drug delivery assembly includes a plurality of drug dispensers, which are equidistant from the ultraviolet lamp and are evenly spaced around the ultraviolet lamp.

[0045] In this scheme, the ultraviolet lamp tube is set along the central axis of the outer tube. The reagent dispenser can input oxidant into the water in the annular gap cavity in the circumferential direction of the ultraviolet lamp tube, which increases the input amount of oxidant and improves the uniformity of oxidant distribution. This is conducive to the generation of active free radicals by the oxidant under the action of ultraviolet light, and the active free radicals can be evenly distributed in the annular gap cavity, ensuring the purification effect on the water.

[0046] Preferably, the outer tube is a transparent tube, and the side wall of the transparent tube is provided with a plurality of through holes, and the inner wall surface and / or outer wall surface of the transparent tube is coated with a catalyst.

[0047] In this design, the container is constructed as a transparent tube, allowing ultraviolet light to refract outside the tube and further purify the water outside. An extended oxidation zone is created within the transparent tube, enhancing overall purification and disinfection. Multiple perforations on the sidewall of the tube allow purified water to flow out slowly. This perforation placement alters the water flow direction within the container, slowing the flow rate and prolonging the purification time of ultraviolet light and high-concentration reactive free radicals, further improving the purification effect. Coating the inner and / or outer walls of the transparent tube with a catalyst enables ultraviolet catalysis under ultraviolet irradiation, increasing the efficiency of generating reactive free radicals and enhancing the water purification effect of the device for catalytic oxidation to remove new pollutants.

[0048] A complete set of equipment for water purification, the complete set of equipment including multiple devices for catalytic oxidation to remove new pollutants as described above, wherein the irradiation intensity at the midpoint of the distance between two adjacent devices for catalytic oxidation to remove new pollutants is not less than the set irradiation intensity for water purification.

[0049] In this scheme, by setting up multiple devices for catalytic oxidation to remove new pollutants, the efficiency of water purification is increased. The intensity of ultraviolet irradiation decreases with increasing distance from the ultraviolet light source. By ensuring that the irradiation intensity at the midpoint between two adjacent devices for catalytic oxidation to remove new pollutants is not less than the set irradiation intensity for water purification, and that the ultraviolet irradiation intensity at all points within the complete set of equipment is higher than the set irradiation intensity for water purification, the purification effect of the ultraviolet catalytic equipment is guaranteed.

[0050] The positive and progressive effects of this invention are as follows: An annular gap cavity is formed between the inner wall of the outer tube and the outer wall of the ultraviolet light source, and water enters the annular gap cavity through the inlet of the outer tube. Within the annular gap cavity, the combined action of the ultraviolet light source and the oxidant effectively stimulates the generation of reactive free radicals such as hydroxyl radicals in the water. These reactive free radicals then interact with organic compounds in the water through addition, substitution, electron transfer, and bond breaking, causing large organic molecules to degrade into smaller molecules, or even directly into carbon dioxide and water, thereby achieving water purification. The reagent dispenser has multiple reagent outlets along the axial direction of the outer tube, allowing for multiple inputs of the oxidant into the water, increasing the input amount and uniformity of the oxidant distribution. High concentrations of reactive free radicals are generated at various locations within the annular gap cavity through reaction with ultraviolet light. These reactive free radicals are confined within the annular gap cavity, increasing their contact with pollutants such as organic compounds in the water, thus enriching the reactive free radicals and improving the purification effect and efficiency of the water. Attached Figure Description

[0051] Figure 1 This is a three-dimensional structural schematic diagram of the apparatus for catalytic oxidation to remove new pollutants according to Embodiment 1 of the present invention.

[0052] Figure 2 This is a schematic diagram of the outer tube of the device for catalytic oxidation to remove new pollutants according to Embodiment 1 of the present invention.

[0053] Figure 3 This is a schematic diagram of the structure of one of the reagent dispensers in the catalytic oxidation device for removing new pollutants according to Embodiment 1 of the present invention.

[0054] Figure 4 This is a schematic diagram of the structure of the ultraviolet lamp tube of the device for catalytic oxidation to remove new pollutants in Embodiment 1 of the present invention.

[0055] Figure 5 This is a radial cross-sectional schematic diagram of the apparatus for catalytic oxidation removal of new pollutants according to Embodiment 1 of the present invention.

[0056] Figure 6 This is a side view of a complete set of equipment according to Embodiment 2 of the present invention, which uses four sets of catalytic oxidation devices to remove new pollutants in synergistic operation.

[0057] Figure 7 The irradiation intensity at the ultraviolet lamp tube wall of the device for catalytic oxidation removal of new pollutants in Embodiment 2 of the present invention is 25000 W / m. 2 Distribution of ultraviolet irradiance intensity at different spacings on the outside of the ultraviolet lamp tube under certain conditions.

[0058] Figure 8This is a schematic diagram illustrating the water purification principle of a complete set of equipment according to Embodiment 2 of the present invention, which uses four sets of catalytic oxidation devices to remove new pollutants in synergy.

[0059] Explanation of reference numerals in the attached figures:

[0060] Device 1 for catalytic oxidation to remove new pollutants

[0061] External tube 11

[0062] 100 water inlet pipe

[0063] Connector 101

[0064] Transparent tube body 102

[0065] 103 mesh

[0066] Catalyst 104

[0067] Connecting pipe 105

[0068] UV lamp tube 106

[0069] Medicine dispenser 108

[0070] 109 Pharmaceutical nozzle

[0071] Double-layer lamp ring 110

[0072] Control point 111

[0073] Drug delivery assembly 2

[0074] Drug storage pump assembly 3

[0075] Control Component 4

[0076] Operating Platform 5 Detailed Implementation

[0077] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0078] Example 1

[0079] This embodiment provides a device 1 for catalytic oxidation to remove new pollutants, used for water purification, such as... Figure 1 , Figure 3 and Figure 5As shown, the device 1 for catalytic oxidation to remove new pollutants includes an outer tube 11, a reagent delivery assembly 2, and an ultraviolet light source. The outer tube 11 is a transparent tube 102, and the ultraviolet light source is an ultraviolet lamp 106. The inlet of the outer tube 11 is connected to an external water body. The ultraviolet light source is located inside the outer tube 11, and an annular gap cavity is formed between the inner wall of the outer tube 11 and the ultraviolet light source. The reagent delivery assembly 2 is used to deliver external oxidant into the annular gap cavity. The reagent delivery assembly 2 includes a reagent distributor 108, which is located inside the annular gap cavity. The reagent distributor 108 has multiple reagent outlets along the axial direction of the outer tube 11.

[0080] Specifically, the oxidant is one or more of ozone, hydrogen peroxide, and chlorine dioxide. When multiple oxidants are used, they can work synergistically to produce a multi-element oxidative disinfection effect, causing the device 1 for catalytic oxidation to remove new pollutants to generate a higher concentration of active free radicals. The outer tube 11 is preferably made of a material with high temperature resistance, high light transmittance, and high strength. The outer tube 11 is a cylindrical transparent tube 102, with a connector 101 at one end. A water inlet pipe 100 is connected to the front of the connector 101, allowing water to enter the transparent tube 102 through the water inlet pipe 100 and flow along the extension direction of the transparent tube 102. In other alternative embodiments, the outer tube 11 can also be a variable cylindrical shape, depending on the structural requirements.

[0081] An annular gap cavity is formed between the inner wall of the outer tube 11 and the outer wall of the ultraviolet light source. Water enters the annular gap cavity through the inlet of the outer tube 11. Within the annular gap cavity, the combined action of the ultraviolet light source and the oxidant effectively stimulates the generation of reactive free radicals such as hydroxyl radicals in the water. These reactive free radicals then interact with organic compounds in the water through addition, substitution, electron transfer, and bond breaking, causing large organic molecules to degrade into smaller molecules, or even directly into carbon dioxide and water, thus achieving water purification. The reagent dispenser 108 has multiple reagent outlets along the axial direction of the outer tube 11, repeatedly introducing the oxidant into the water. This increases the input amount and distribution uniformity of the oxidant, generating a high concentration of reactive free radicals at various locations within the annular gap cavity through reaction with ultraviolet light. The generated reactive free radicals are confined within this annular gap cavity, increasing the opportunity for them to contact pollutants such as organic compounds in the water, thus enriching the reactive free radicals and improving the purification effect and efficiency of the water.

[0082] As a preferred implementation method, such as Figure 3 and Figure 5 As shown, the drug delivery assembly 2 includes multiple drug dispensers 108, which are respectively disposed at different positions in the circumferential direction of the annular gap cavity.

[0083] By setting multiple reagent dispensers 108 at different positions along the circumference of the annular gap cavity, oxidant is introduced into the water at different positions along the circumference of the annular gap cavity, further improving the input amount of oxidant and the uniformity of oxidant distribution. At different positions along the circumference of the annular gap cavity, there is a sufficient amount of oxidant to generate active free radicals under the excitation of high-intensity ultraviolet light, which increases the production of active free radicals and the uniformity of their distribution in the annular gap cavity. This is beneficial for the contact between active free radicals and the water, thereby improving the purification effect and efficiency of the water.

[0084] As a preferred implementation method, such as Figure 1 and Figure 5 As shown, the drug delivery assembly 2 includes multiple connecting pipes 105, which are connected one-to-one with the drug dispenser 108. The connecting pipes 105 extend into the outer tube 11 at different positions around the outer tube 11 and are connected to the drug dispenser 108.

[0085] By setting multiple connecting pipes 105 to the reagent distributor 108 in a one-to-one manner, it is beneficial to ensure that the reagent distributor 108 can output a sufficient amount of oxidant into the annular gap cavity, and to ensure the uniform distribution of oxidant by the reagent distributor 108. The connecting pipes 105 extend into the outer tube 11 at different positions around the circumference of the outer tube 11. The connecting pipes 105 can be connected to the reagent distributors 108 that are closer to them, which reduces the length of the connecting pipes 105 that need to be set inside the outer tube 11, avoids mutual interference between multiple connecting pipes 105, and facilitates the assembly of the device 1 for catalytic oxidation to remove new pollutants.

[0086] In this embodiment, the device 1 for catalytic oxidation to remove new pollutants has four reagent dispensers 108 inside the outer tube 11. The four reagent dispensers 108 are equally spaced within the annular gap cavity. A connecting pipe 105 passes through the outer tube 11 and communicates with the reagent dispensers 108. The outer tube 11 has four holes for the connecting pipe 105 to pass through, and the four holes are located on the same circumferential surface of the outer tube 11 and are equally spaced around the circumference of the outer tube 11. After passing through the outer tube 11, the connecting pipe 105 communicates with the nearest reagent dispenser 108.

[0087] As a preferred implementation method, such as Figure 3 As shown, the drug delivery assembly 2 includes a plurality of connecting pipes 105, each connecting pipe 105 being connected to each drug dispenser 108 at the midpoint of the drug dispenser 108 in the axial direction.

[0088] In this scheme, the connection point between the connecting pipe 105 and the reagent distributor 108 is set at the midpoint of the reagent distributor 108 in the axial direction. The connection point is equidistant from both ends of the reagent distributor 108 along the axial direction of the outer pipe 11. This facilitates the uniform flow of oxidant through the reagent distributor 108 to both ends. Furthermore, the oxidant is output into the water body through multiple reagent outlets set along the axial direction of the outer pipe 11, which improves the uniformity of oxidant distribution and thus enhances the purification effect of the ultraviolet catalytic device on the water body.

[0089] In a preferred embodiment, the agent outlet is a agent nozzle 109, which is rotatably connected to the agent dispenser 108. The outer wall of the agent nozzle 109 is rotatably connected to the outer wall of the agent dispenser 108, and the interior of the agent nozzle 109 is in communication with the agent dispenser 108.

[0090] The reagent nozzle 109 can pressurize and spray the oxidant, increasing the efficiency of mixing between the oxidant and the water. By rotating, the reagent nozzle 109 can input the oxidant into the water from different directions on the reagent distributor 108. Oxidant can be input into the water at various positions within the annular gap cavity, eliminating the need for water flow to carry the oxidant for uniform distribution. This allows for uniform mixing even at low flow rates and enables the oxidant to be delivered to designated locations as needed, improving the uniformity of oxidant distribution and thus enhancing the water purification effect of the catalytic oxidation device 1 for removing new pollutants.

[0091] As a preferred implementation method, such as Figure 4 As shown, the ultraviolet light source includes multiple ultraviolet lamps 106, which are parallel to the axial direction of the outer tube 11 and spaced apart from each other.

[0092] By setting multiple ultraviolet lamps 106 parallel to the axial direction of the outer tube 11, the distribution density of ultraviolet light irradiation is increased, which is conducive to the oxidant generating more and faster active free radicals under the action of ultraviolet light, thereby improving the purification effect and purification efficiency of the device 1 for catalytic oxidation to remove new pollutants on water.

[0093] As a preferred implementation method, such as Figure 4 and Figure 5 As shown, at least one ultraviolet lamp 106 is provided between any two adjacent drug dispensers 108.

[0094] In this scheme, by increasing the distribution density of ultraviolet light source irradiation and the amount of oxidant input, the coupling effect between ultraviolet light and oxidant is enhanced, thereby increasing the generation of active free radicals and improving the purification effect and efficiency of the device 1 for catalytic oxidation removal of new pollutants on water.

[0095] In this embodiment, the device 1 for catalytic oxidation to remove new pollutants has four reagent dispensers 108 and four ultraviolet lamps 106 inside the outer tube 11. The four reagent dispensers 108 are arranged at equal intervals in the annular gap cavity, and the ultraviolet lamps 106 are arranged at the middle position of two adjacent reagent dispensers 108.

[0096] As a preferred implementation method, such as Figure 4 As shown, the drug delivery assembly 2 includes a plurality of drug dispensers 108, which are equidistant from the ultraviolet lamp tube 106 and are evenly spaced around the ultraviolet lamp tube 106.

[0097] The ultraviolet lamp tube 106 is arranged along the central axis of the outer tube 11. The reagent dispenser 108 can input oxidant into the water in the annular gap cavity in the circumferential direction of the ultraviolet lamp tube 106, which increases the input amount of oxidant and improves the uniformity of oxidant distribution. This is conducive to the generation of active free radicals by the oxidant under the action of ultraviolet light, and the active free radicals can be evenly distributed in the annular gap cavity, ensuring the purification effect on the water.

[0098] As a preferred implementation method, such as Figure 2 As shown, the outer tube 11 is a transparent tube 102, and several through holes are provided on the side wall of the transparent tube 102. The inner wall surface and / or outer wall surface of the transparent tube 102 are coated with catalyst 104. In this embodiment, the transparent tube 102 is provided with double-layer lamp tube collars 110 at both ends in its axial direction, and four straight tubular ultraviolet lamp tubes 106 are nested and locked in the outer ring.

[0099] By designing the container as a transparent tube 102, ultraviolet light can be refracted outside the tube, further purifying the water outside the tube. This creates an extended oxidation zone within the tube, improving overall purification and disinfection. Multiple through-holes on the sidewall of the tube 102 allow purified water to flow out slowly. This placement alters the water flow direction within the container, slowing the flow rate and prolonging the purification time of ultraviolet light and high-concentration reactive free radicals, further enhancing the purification effect. Coating the inner and / or outer walls of the tube 102 with catalyst 104 enables ultraviolet catalysis under ultraviolet irradiation, increasing the efficiency of generating reactive free radicals and improving the water purification effect of the device 1 for catalytic oxidation and removal of new pollutants.

[0100] As a preferred implementation method, such as Figure 1As shown, the reagent delivery assembly 2 includes a reagent storage pump assembly 3, which includes a pressurizing pump and a reagent storage tank (not shown in the figure). The pressurizing pump is located inside the reagent storage tank and pressurizes the oxidant in the tank to pump it into the annular gap cavity of the catalytic oxidation device 1 for removing new pollutants. The catalytic oxidation device 1 for removing new pollutants also includes a monitoring probe, an electrical control assembly, corrosion-resistant wires, and an alarm. The monitoring probe is used to detect the pollutant concentration and / or ultraviolet radiation intensity in the water and provides feedback on the pollutant concentration and / or ultraviolet radiation intensity. When the pollutant concentration in the water is too high or the ultraviolet radiation intensity is insufficient, the monitoring probe sends feedback to the electrical control assembly, which promptly issues an alarm signal through the alarm. This allows staff to adjust the irradiation intensity of the ultraviolet lamp 106 and the pressurizing pump intensity of the oxidant to ensure the purification effect on the water. The electrical control assembly of the reagent storage pump assembly 3 and the control assembly 4 is located on the operating platform 5 outside the water purification structure.

[0101] In other embodiments, the number and arrangement of the drug dispensers can be adjusted as needed.

[0102] Example 2

[0103] This embodiment provides a complete set of equipment for water purification, such as... Figure 6 As shown, the complete set of equipment includes multiple devices 1 for catalytic oxidation to remove new pollutants as in Example 1, which can be applied to sewage pipes or water purification structures with larger diameters. The irradiance at the midpoint of the distance between two adjacent devices 1 for catalytic oxidation to remove new pollutants is not less than the set irradiance for water purification.

[0104] By setting up multiple devices 1 for catalytic oxidation to remove new pollutants, the efficiency of water purification can be increased. The intensity of ultraviolet irradiation decreases with increasing distance from the ultraviolet light source. By ensuring that the irradiation intensity at the midpoint between two adjacent devices 1 for catalytic oxidation to remove new pollutants is not less than the set irradiation intensity for water purification, and that the ultraviolet irradiation intensity at all points inside the complete set of equipment is higher than the set irradiation intensity for water purification, the purification effect of the ultraviolet catalytic equipment is guaranteed.

[0105] The combined action of ultraviolet light and oxidants can effectively stimulate the generation of reactive free radicals such as hydroxyl radicals in water. These free radicals then interact with organic compounds through addition, substitution, electron transfer, and bond breaking, degrading large organic molecules into smaller molecules, or even directly into carbon dioxide and water, thus achieving water purification. By placing the ultraviolet light source inside the container, forming a ring-shaped cavity between it and the oxidant, the generated reactive free radicals are confined within this cavity. This increases the opportunity for reactive free radicals to contact pollutants such as organic compounds in the water, enriching them and preventing their rapid loss. This creates a highly efficient oxidation zone rich in reactive free radicals within the ring-shaped cavity, improving the efficiency and effectiveness of oxidation treatment and enhancing the water purification effect. Figure 7 and Figure 8 As shown, the intensity of ultraviolet irradiation decreases with increasing distance from the ultraviolet light source. By ensuring that the irradiation intensity at the midpoint between two adjacent devices 1 for catalytic oxidation to remove new pollutants is not less than the set irradiation intensity for water purification, the ultraviolet irradiation intensity at all points inside the complete set of equipment is higher than the set irradiation intensity for water purification, thereby improving the purification effect of the complete set of equipment. Preferably, a monitoring probe is also installed at the midpoint between two adjacent devices 1 for catalytic oxidation to remove new pollutants.

[0106] In this embodiment, the ultraviolet lamps 106 of the multiple catalytic oxidation devices 1 for removing new pollutants are arranged in parallel, and the cross-sections of the multiple ultraviolet lamps 106 are arranged at equal intervals along the first direction and the second direction, respectively. The extension direction of the ultraviolet lamps 106, the first direction, and the second direction are perpendicular to each other. For example, the center position between every four ultraviolet lamps 106 is set as a control point 111. A monitoring probe is set at the control point 111, and the irradiance at the control point 111 is not less than 500W / m. 2 This is to ensure the purification effect of the complete set of equipment on the water.

[0107] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. An apparatus for catalytic oxidative removal of emerging pollutants for water purification, characterized in that, The device for removing new pollutants by catalytic oxidation comprises an outer tube, a medicament delivery assembly and a UV light source, the inlet of the outer tube is communicated with an external water body, the UV light source is arranged in the outer tube, a ring gap cavity extending along the axial direction of the outer tube is formed between the inner side wall of the outer tube and the UV light source, and the medicament delivery assembly is used for delivering an external oxidant into the ring gap cavity; The medicament delivery assembly comprises a plurality of medicament dispensers arranged in the ring gap cavity, and the medicament dispensers are provided with a plurality of medicament outlets in the axial direction of the outer tube; The medicament delivery assembly comprises a plurality of connecting tubes, the connecting tubes extend into the outer tube at different positions in the circumferential direction of the outer tube and are communicated with the medicament dispensers, and each connecting tube is connected with each medicament dispenser at the midpoint of the axial direction of the medicament dispenser; The outer tube is a transparent tube body, a plurality of through holes are arranged on the side wall of the transparent tube body, and a catalyst is coated on the inner wall surface and / or the outer wall surface of the transparent tube body; The UV light source comprises a plurality of UV lamp tubes, the UV lamp tubes are arranged in parallel to the axial direction of the outer tube and are spaced apart from each other, the distance between the medicament dispensers and the UV lamp tubes is equal, and the medicament dispensers are arranged at equal intervals in the circumferential direction of the UV lamp tubes.

2. The apparatus for catalytic oxidative removal of emerging pollutants as claimed in claim 1 wherein, The medicament outlet is a medicament spout, and the medicament spout is rotationally connected with the medicament dispenser.

3. The apparatus for catalytic oxidative removal of emerging pollutants as claimed in claim 1 wherein, At least one UV lamp tube is arranged between any two adjacent medicament dispensers.

4. A kit for water purification, characterized in that, The complete equipment comprises a plurality of devices for removing new pollutants by catalytic oxidation as claimed in any one of claims 1-3, and the irradiation intensity at the midpoint of the distance between adjacent two devices for removing new pollutants by catalytic oxidation is not less than the set irradiation intensity for water purification.

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