A device for controlling risk of organic matter in sewage by advanced reduction pretreatment source

Abstract

The utility model belongs to sewage treatment technical field especially relates to a kind of device of high-grade reduction pretreatment source head blocking and controlling sewage risk organic matter, it solves the low utilization efficiency of ultraviolet light, the problem that light efficiency and mass transfer are seriously influenced by scale formation between lamp tube and wall.This high-grade reduction pretreatment source head blocking and controlling sewage risk organic matter's device, including reactor main body, the reactor main body is formed with cylindrical reaction cavity inside, the coaxial fixed mounting pipe in the reaction cavity, the mounting pipe lower end is sealingly connected with reaction cavity bottom surface, the mounting pipe is equipped with ultraviolet lamp assembly, the mounting pipe outer side wall and reaction cavity inner side wall between form have sewage storage cavity, the reactor is also equipped with auxiliary agent dropping assembly, and sulfite and / or pH adjusting agent can be quantitatively dropped, the sewage storage cavity is equipped with stirring and scraping dirty structure.The efficient utilization of ultraviolet light is realized, and the continuous and efficient reaction is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and specifically relates to an advanced reduction pretreatment device for source control of hazardous organic matter in wastewater. Background Technology

[0002] With the advancement of the rural revitalization strategy and the improvement of living standards in rural areas, the widespread use of personal care and healthcare products such as antibiotics and antibacterial agents has led to various hazardous organic compounds entering the treatment system along with domestic sewage. These hazardous organic compounds (such as halogenated antibiotics) are typically characterized by low concentrations, stable chemical properties, and poor biodegradability.

[0003] Traditional biological treatment processes (such as the A² / O process) are inefficient at removing these pollutants, allowing them to penetrate the treatment system and be directly discharged into the environment. This makes them a significant source of pollution that induces the spread and diffusion of resistance genes, posing a potential threat to water safety and human health.

[0004] Advanced oxidation technologies (AOPs) are commonly used to treat recalcitrant organic pollutants. However, relying on the non-targeting action of strong oxidizing free radicals, they not only destroy the structure of pollutants but also consume a large amount of organic carbon sources in the influent. This not only increases operating costs but also exacerbates the contradiction of insufficient carbon sources in subsequent biological nitrogen and phosphorus removal units, which contradicts the need for low-carbon and stable operation of rural sewage treatment facilities.

[0005] In recent years, advanced reduction technologies (ARPs) have attracted attention as an emerging advanced treatment technology. They generate highly reducing active species (such as hydrated electrons) by activating sulfites with ultraviolet light, which can selectively break carbon-halogen bonds in halogenated organic compounds, achieving targeted dehalogenation and detoxification while maximizing the retention of organic carbon sources in the water.

[0006] However, the engineering application of this technology still faces many challenges. First, the reactor design has low utilization efficiency of ultraviolet light and high energy consumption. Second, as the reaction proceeds, scaling on the lamp tubes and reactor walls seriously affects light efficiency and mass transfer, making maintenance difficult. Summary of the Invention

[0007] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an advanced reduction pretreatment device for controlling the source of hazardous organic matter in wastewater.

[0008] To achieve the innovative objectives of this utility model, the following technical solutions can be used: An advanced reduction pretreatment device for source control of hazardous organic matter in wastewater includes a reactor body with a cylindrical reaction chamber formed within it. An installation tube is coaxially fixed within the reaction chamber, its lower end sealed to the bottom of the reaction chamber. An ultraviolet lamp assembly is installed inside the installation tube. A wastewater storage chamber is formed between the outer wall of the installation tube and the inner wall of the reaction chamber. The reactor also includes an auxiliary agent dripping assembly capable of quantitatively adding sulfites and / or pH adjusters. A stirring and scraping structure is provided within the wastewater storage chamber.

[0009] This invention utilizes the combined effects of sulfite and ultraviolet light to remove hazardous organic matter through the combined action of key active species and ultraviolet photolysis, potentially reducing effluent resistance risk by 30%. Within the reactor body, the reaction chamber is divided by an mounting tube into a central ultraviolet lamp installation space and an outer annular wastewater storage chamber. The built-in ultraviolet lamp assembly emits ultraviolet light that irradiates the wastewater storage chamber 360° without dead angles, ensuring uniform and thorough illumination. Furthermore, the ultraviolet lamp assembly does not need to directly contact the wastewater; its emitted ultraviolet light radiates into the wastewater storage chamber through the mounting tube, extending the lifespan of the ultraviolet lamp assembly, reducing insulation requirements, and facilitating disassembly and assembly. An auxiliary agent dripping component ensures the required sulfite and optimal pH environment for the reaction. A stirring and scraping structure located within the wastewater storage chamber enhances the mass transfer and mixing of pollutants, reagents, and active species through stirring, and removes contaminants adhering to the outer wall of the mounting tube through scraping, ensuring the tube's light transmittance.

[0010] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the ultraviolet lamp assembly includes a low-pressure mercury lamp capable of simultaneously radiating 185nm vacuum ultraviolet light and 254nm ultraviolet light, and the low-pressure mercury lamp is evenly arranged circumferentially inside the mounting tube.

[0011] Low-pressure mercury lamps are the key excitation source for achieving advanced reduction. Their 185nm vacuum ultraviolet (VUV) radiation directly photolyzes water molecules to produce highly reducing reactive species, such as hydrated electrons, while their 254nm ultraviolet (UV) radiation effectively activates sulfites to produce additional reactive species. The synergistic effect of these two elements constitutes a highly efficient advanced reduction system. The uniform arrangement of the low-pressure mercury lamps ensures uniform light intensity distribution within the annular wastewater storage chamber, preventing the formation of treatment dead zones.

[0012] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, several ultraviolet lamp slots are evenly distributed circumferentially on the inner sidewall of the installation pipe, and the low-pressure mercury lamp is installed in the ultraviolet lamp slot.

[0013] The UV lamp slot facilitates the quick installation, replacement, and maintenance of the low-pressure pump lamp, improving the maintainability of the equipment.

[0014] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the installation tube includes a transparent quartz tube, and the inner wall of the reaction chamber is provided with a reflective layer.

[0015] Quartz tubes, also known as glass tubes, have extremely high transmittance for 185nm and 254nm ultraviolet light. The reflective layer can be made of high-purity aluminum film or Teflon coating, which can reflect the ultraviolet light transmitted through the wastewater storage cavity back into the wastewater storage cavity, thereby improving the utilization rate of ultraviolet light.

[0016] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the stirring and scraping structure includes an elastic inner scraper ring and an elastic outer scraper ring. The elastic inner scraper ring is elastically attached to the inner wall of the wastewater storage chamber, and the elastic outer scraper ring is elastically attached to the outer wall of the wastewater storage chamber. The elastic inner scraper ring and the elastic outer scraper ring are connected by a connecting section, which is connected to a lifting drive assembly.

[0017] The elastic inner scraper ring and elastic outer scraper ring make elastic contact with the inner and outer walls of the sewage storage chamber, respectively, effectively scraping away dirt during the lifting and lowering process. The connecting section connects the two scraper rings, making them a single unit, and the lifting drive assembly is used to drive the lifting and lowering action of this unit. On the other hand, the connecting section can also apply a certain stirring effect to the sewage during the lifting and lowering process, which is beneficial to the mixing of sewage from the upper and lower layers.

[0018] Furthermore, the elastic inner scraper ring includes a small annular skeleton and an elastic rubber strip disposed inside the small skeleton, and the elastic outer scraper ring includes a large annular skeleton and an elastic rubber strip disposed outside the large skeleton. The elasticity of the elastic rubber strip ensures that it is in close contact with the cavity wall of the sewage storage chamber, while the rigidity of the skeleton ensures the overall strength.

[0019] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the lifting drive assembly includes a screw extending axially within the wastewater storage chamber. The connecting section is provided with a screw hole. The number and position of the screw and the connecting section correspond. The screw engages with the screw hole and is connected to a circumferential drive for transmission.

[0020] Multiple sets of screws are set to ensure that the stirring and scraping structure is subjected to uniform force, while also restricting the circumferential rotation of the stirring and scraping structure. The screws mesh with the screw holes, and the circumferential driver drives each screw to rotate synchronously. Under the action of the threads, the connecting rod is raised and lowered along the screws.

[0021] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the length of the connecting section is adapted to the radial direction of the wastewater storage chamber, and the width of the connecting section forms an acute angle with the circumference of the wastewater storage chamber.

[0022] The connecting section is plate-shaped and inclined, which makes it act as a static mixer on a macroscopic level. During the lifting and lowering process, the connecting section cuts and guides the water flow, forming a vortex, which greatly enhances the mixing effect of sewage with chemicals and active species.

[0023] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the auxiliary agent dripping assembly includes a sulfite dripping pipe and a pH adjustment pipe installed on the top cover of the reactor, and the sulfite dripping pipe and the pH adjustment pipe are respectively equipped with on / off flow valves. The upper end of the sulfite dripping tube is connected to the sulfite storage tank, and the lower end can quantitatively add sulfite to the wastewater storage chamber. The upper end of the pH adjustment tube is connected to the pH adjustment agent storage tank, and the lower end can quantitatively add pH adjustment agent to the wastewater storage chamber.

[0024] The auxiliary agent dripping component adds sulfite solution through a sulfite dripping tube and adds the corresponding pH adjuster through a pH adjusting tube. The flow valve can be a solenoid valve or a metering pump to ensure quantitative dripping.

[0025] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, an ultraviolet radiation sensor is provided between the installation pipe and the ultraviolet lamp assembly, and an ultraviolet absorption sensor and a pH sensor are provided in the wastewater storage chamber. The ultraviolet radiation sensor, ultraviolet absorption sensor, pH sensor, ultraviolet lamp assembly, and switch flow valve are all electrically connected to the control panel.

[0026] An ultraviolet radiation sensor monitors the actual output light intensity of the ultraviolet lamp assembly in real time, while an ultraviolet absorption sensor measures the ultraviolet absorbance of the water sample at 254 nm. This absorbance serves as a proxy parameter for conjugated organic matter in the water, monitoring changes in the organic load in the influent and providing a basis for adjusting the sulfite dosage. A pH sensor monitors the reaction environment. These sensor signals are collected on a control panel, which dynamically adjusts the flow valve and the power of the ultraviolet lamp assembly, forming a closed-loop control system to ensure optimal reagent dosage and stable energy consumption compliance.

[0027] In the aforementioned advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, the reactor is provided with an inlet at the top and an outlet at the bottom. A transfer tank is connected below the outlet, and a filter assembly is provided between the outlet and the transfer tank. A return pipe is connected to the lower part of the transfer tank, and a power pump is connected to the return pipe, which can return the wastewater in the transfer tank to the upper part of the wastewater storage chamber.

[0028] The transfer tank and return pipe constitute the return system, which removes solid impurities from the wastewater during the return process. These solid impurities include trace amounts of suspended crystals or flocs that may be generated during the reaction, as well as the attached material scraped off by the scraper. Moreover, the hydraulic circulation further enhances the mixing effect within the reactor, which also promotes the mixing of wastewater between the upper and lower layers and ensures uniformity in the vertical direction. In addition, the transfer tank can also serve as a system buffer to cope with fluctuations in water quality and quantity.

[0029] Compared with the prior art, the present invention has the following main advantages: 1. The reaction chamber is divided into an ultraviolet lamp installation space located at the axis and an annular sewage storage chamber located on the outside by the installation tube. The ultraviolet light emitted by the built-in ultraviolet lamp assembly can irradiate the sewage storage chamber 360° without dead angles, ensuring uniform light reception without dead angles. Moreover, the ultraviolet lamp assembly does not need to directly contact the sewage, which extends the service life of the ultraviolet lamp assembly, reduces insulation requirements, and facilitates disassembly and assembly.

[0030] 2. The stirring and scraping structure is located in the sewage storage chamber. On the one hand, it enhances the mass transfer and mixing of pollutants, agents and active species through stirring. On the other hand, it scrapes away the stains attached to the outer wall of the installation pipe through scraping action, ensuring the light transmittance of the installation pipe.

[0031] 3. The UV lamp slot facilitates the quick installation, replacement, and maintenance of the low-pressure pump lamp, improving the maintainability of the equipment.

[0032] 4. The elastic inner scraper ring and the elastic outer scraper ring make elastic contact with the inner and outer walls of the sewage storage chamber, respectively, effectively scraping away dirt during the lifting and lowering process. The connecting section connects the two scraper rings, making them a whole, and the lifting drive component is used to drive the lifting and lowering action of this whole. On the other hand, the connecting section can exert a certain stirring effect on the sewage during the lifting and lowering process, which is also conducive to the mixing of sewage from the upper and lower layers.

[0033] 5. The connecting section is plate-shaped and inclined, which cuts and guides the water flow during the lifting and lowering process, forming a vortex to ensure the mixing effect.

[0034] 6. The transfer tank and return pipe constitute the return system. During the return process, the filter components intercept solid impurities in the sewage. Moreover, the mixing effect is further enhanced by hydraulic circulation, which can also promote the mixing of sewage in the upper and lower layers and ensure uniformity in the vertical direction. In addition, the transfer tank can also serve as a system buffer to cope with fluctuations in water quality and quantity. Attached Figure Description

[0035] Figure 1 This is a schematic cross-sectional view of the overall structure provided by this utility model; Figure 2This is a top view schematic diagram of the integrated structure of the elastic inner scraping ring, the elastic outer scraping ring, and the connecting section provided by this utility model; Figure 3 This is a cross-sectional schematic diagram of the integrated structure of the elastic inner scraping ring, the elastic outer scraping ring, and the connecting section provided by this utility model.

[0036] In the diagram, the reactor body is 1, the reaction chamber is 2, the mounting pipe is 3, the ultraviolet lamp assembly is 4, the wastewater storage chamber is 5, the auxiliary agent dripping assembly is 6, the stirring and scraping structure is 7, the low-pressure mercury lamp is 8, the ultraviolet lamp slot is 9, the reflective layer is 11, the elastic inner scraper ring is 12, the elastic outer scraper ring is 13, the connecting section is 14, the screw is 15, the screw hole is 16, the sulfite dripping pipe is 17, the pH adjustment pipe is 18, the on / off flow valve is 19, the sulfite storage tank is 20, the pH adjustment agent storage tank is 21, the inlet is 22, the outlet is 23, the transfer tank is 24, the filter assembly is 25, the return pipe is 26, and the power pump body is 27. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0038] Specific implementation examples Figures 1-3 As shown, this advanced reduction pretreatment device for source control of hazardous organic matter in wastewater includes a reactor body 1, a cylindrical reaction chamber 2 formed within the reactor body 1, an installation tube 3 coaxially fixed within the reaction chamber 2, the installation tube 3 being a transparent quartz tube, a reflective layer 11 on the inner wall of the reaction chamber 2, the lower end of the installation tube 3 being sealed to the bottom surface of the reaction chamber 2, several ultraviolet lamp assemblies 4 evenly arranged circumferentially within the installation tube 3, the ultraviolet lamp assemblies 4 including a low-pressure mercury lamp 8, capable of simultaneously radiating 185nm vacuum ultraviolet light and 254nm ultraviolet light, a wastewater storage chamber 5 formed between the outer wall of the installation tube 3 and the inner wall of the reaction chamber 2, an auxiliary agent dripping assembly 6 on the reactor 1, capable of quantitatively dripping sulfite and pH adjuster, and a stirring and scraping structure 7 within the wastewater storage chamber 5.

[0039] Specifically, in the reactor body 1 of this device, the reaction chamber 2 is divided by the mounting tube 3 into a UV lamp installation space located at the axis and an annular wastewater storage chamber 5 located on the outer side. The UV lamp assembly 4 emits UV light that can irradiate the wastewater storage chamber 5 360° without dead angles, ensuring uniform and dead-angle illumination. Moreover, the UV lamp assembly 4 does not need to directly contact the wastewater; the UV light it emits radiates into the wastewater storage chamber 5 through the mounting tube 3, extending the service life of the UV lamp assembly 4, reducing insulation requirements, and facilitating disassembly and assembly. The auxiliary agent dripping assembly 6 ensures the sulfite and optimal pH environment required for the reaction. The stirring and scraping structure 7 is located in the wastewater storage chamber 5. On the one hand, it enhances the mass transfer and mixing of pollutants, reagents, and active species through stirring; on the other hand, it scrapes away the stains attached to the outer wall of the mounting tube 3 through scraping action, ensuring the light transmittance of the mounting tube 3.

[0040] As an optimization, several UV lamp slots 9 are evenly distributed circumferentially on the inner wall of the mounting tube 3. The low-pressure mercury lamp 8 is installed in the UV lamp slot 9, which facilitates quick installation, replacement and maintenance, and improves the maintainability of the equipment. In addition, a certain gap is formed between the light-emitting surface of the low-pressure mercury lamp 8 and the bottom of the UV lamp slot 9, which is used for the setting of corresponding sensors, which is also conducive to heat dissipation, and can also prevent the inner wall of the mounting tube 3 from being scratched during disassembly and assembly, thus ensuring light transmittance.

[0041] like Figure 1 , 2 As shown in Figure 3, the stirring and scraping structure 7 includes an elastic inner scraper ring 12 and an elastic outer scraper ring 13. The elastic inner scraper ring 12 is elastically attached to the inner wall of the sewage storage cavity 5, and the elastic outer scraper ring 13 is elastically attached to the outer wall of the sewage storage cavity 5. The elastic inner scraper ring 12 and the elastic outer scraper ring 13 are connected by a connecting section 14. The length direction of the connecting section 14 is adapted to the radial direction of the sewage storage cavity 5, and the width direction forms an acute angle with the circumferential direction of the sewage storage cavity 5. The lifting drive assembly includes a screw 15 that extends axially within the sewage storage cavity 5. The connecting section 14 is provided with a screw hole 16. The number and position of the screw 15 correspond to those of the connecting section 14. The screw 15 engages with the screw hole 16 and is connected to a circumferential drive (not specifically shown in the figure).

[0042] Specifically, the elastic inner scraper ring 12 and the elastic outer scraper ring 13 are in elastic contact with the inner and outer walls of the sewage storage chamber 5, respectively, effectively scraping away dirt during the lifting and lowering process. The connecting section 14 connects the two scraper rings, making them a whole, and the lifting and lowering drive assembly is used to drive the lifting and lowering action of this whole. On the other hand, the connecting section 14 is plate-shaped and inclined, so that the connecting section 14 acts as a static mixer on a macroscopic level. During the lifting and lowering process, the connecting section 14 cuts and guides the water flow, forming a vortex, which greatly enhances the mixing effect of sewage with chemicals and active species. Multiple sets of screws 15 are set to ensure that the stirring and scraping structure 7 is subjected to uniform force, while also restricting the circumferential rotation of the stirring and scraping structure 7. The screws 15 mesh with the screw holes 16, and the circumferential driver drives each screw 15 to rotate synchronously. Under the action of the threads, the connecting rod is lifted and lowered along the screws 15.

[0043] Furthermore, the elastic inner scraper ring 12 includes a small annular skeleton and an elastic rubber strip disposed inside the small skeleton, and the elastic outer scraper ring 13 includes a large annular skeleton and an elastic rubber strip disposed outside the large skeleton. The elasticity of the elastic rubber strip ensures that it is in close contact with the cavity wall of the sewage storage cavity 5, while the rigidity of the skeleton ensures the overall strength.

[0044] As an optimization of this embodiment, the auxiliary agent dripping assembly 6 includes a sulfite dripping pipe 17 and a pH adjustment pipe 18 disposed on the top cover of the reactor. The sulfite dripping pipe 17 and the pH adjustment pipe 18 are respectively provided with a flow valve 19. The upper end of the sulfite dripping pipe 17 is connected to the sulfite storage tank 20, and the lower end can quantitatively drip sulfite into the wastewater storage chamber 5. The upper end of the pH adjustment pipe 18 is connected to the pH adjustment agent storage tank 21, and the lower end can quantitatively drip pH adjustment agent into the wastewater storage chamber 5.

[0045] In this embodiment, an ultraviolet radiation sensor is provided between the installation pipe 3 and the ultraviolet lamp assembly 4, and an ultraviolet absorption sensor and a pH sensor are provided in the sewage storage chamber 5. The ultraviolet radiation sensor, ultraviolet absorption sensor, pH sensor, ultraviolet lamp assembly 4 and the switch flow valve 19 are all electrically connected to the control panel (not specifically shown in the figure).

[0046] Specifically, the ultraviolet radiation sensor monitors the actual output light intensity of the ultraviolet lamp assembly 4 in real time, the ultraviolet absorption sensor measures the ultraviolet absorbance of the water sample at 254nm as a substitute parameter for conjugated organic matter in the water, monitors changes in the organic matter load in the influent, and provides a basis for adjusting the sulfite dosage. The pH sensor monitors the reaction environment. These sensor signals are collected at the control panel, which can dynamically adjust the power of the on / off flow valve 19 and the ultraviolet lamp assembly 4 to form a closed-loop control loop, ensuring that the optimal reagent dosage and energy consumption are stably achieved.

[0047] As an optimization of this embodiment, the reactor 1 is provided with an inlet 22 at the top and an outlet 23 at the bottom. A transfer tank 24 is connected below the outlet 23. A filter assembly 25 is provided between the outlet 23 and the transfer tank 24. A return pipe 26 is connected to the lower part of the transfer tank 24. A power pump body 27 is connected to the return pipe 26, which can return the sewage in the transfer tank 24 to the upper part of the sewage storage chamber 5.

[0048] Specifically, the transfer tank 24 and the return pipe 26 constitute a return system, which removes solid impurities from the wastewater during the return process. These solid impurities include trace amounts of suspended crystals or flocs that may be generated during the reaction, as well as the attached material scraped off by the scraper. Moreover, the mixing effect in the reactor is further enhanced by the hydraulic circulation, which can also promote the mixing of wastewater in the upper and lower layers and ensure uniformity in the vertical direction. In addition, the transfer tank 24 can also serve as a system buffer to cope with fluctuations in water quality and quantity.

[0049] Working principle: After initial filtration, the wastewater to be treated enters the wastewater storage chamber 5 through inlet 22. Then, the low-pressure mercury lamp 8 is turned on, and an appropriate amount of sulfite is added to the wastewater storage chamber 5. Subsequently, the circumferential actuator drives the screw 15 to rotate, and the elastic inner scraper ring 12 and elastic outer scraper ring 13 slide and scrape along the inner and outer walls of the wastewater storage chamber 5. The connecting section 14 agitates the wastewater during lifting and lowering. After a period of treatment, the valve at outlet 23 opens, and the wastewater flows through the filter assembly 25 into the transfer tank 24. Solids in the wastewater are trapped, and the power pump 27 pumps the wastewater from the transfer tank 24 back to the upper part of the wastewater storage chamber 5 through the return pipe 26 for recycling.

[0050] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An advanced reduction pretreatment device for source control of hazardous organic matter in wastewater, comprising a reactor body (1), wherein a cylindrical reaction chamber (2) is formed within the reactor body (1), characterized in that, An installation tube (3) is coaxially fixed inside the reaction chamber (2). The lower end of the installation tube (3) is sealed to the bottom surface of the reaction chamber (2). An ultraviolet lamp assembly (4) is provided inside the installation tube (3). A sewage storage chamber (5) is formed between the outer wall of the installation tube (3) and the inner wall of the reaction chamber (2). An auxiliary agent dripping assembly (6) is also provided on the reactor (1), which can quantitatively add sulfite and / or pH adjuster. A stirring and scraping structure (7) is provided inside the sewage storage chamber (5).

2. The advanced reduction pretreatment device for source control of hazardous organic matter in wastewater according to claim 1, characterized in that, The ultraviolet lamp assembly (4) includes a low-pressure mercury lamp (8) which can simultaneously radiate 185nm vacuum ultraviolet light and 254nm ultraviolet light. The low-pressure mercury lamp (8) is evenly arranged in the mounting tube (3) in a circumferential direction.

3. The advanced reduction pretreatment device for source control of hazardous organic matter in wastewater according to claim 2, characterized in that, The inner wall of the mounting tube (3) is evenly distributed with several ultraviolet lamp slots (9) in the circumferential direction, and the low-pressure mercury lamp (8) is installed in the ultraviolet lamp slots (9).

4. The advanced reduction pretreatment device for source control of hazardous organic matter in wastewater according to claim 1, characterized in that, The mounting tube (3) includes a transparent quartz tube, and the inner wall of the reaction chamber (2) is provided with a reflective layer (11).

5. The advanced reduction pretreatment device for source control of hazardous organic matter in wastewater according to claim 1, characterized in that, The stirring and scraping structure (7) includes an elastic inner scraping ring (12) and an elastic outer scraping ring (13). The elastic inner scraping ring (12) is elastically attached to the inner wall of the sewage storage chamber (5), and the elastic outer scraping ring (13) is elastically attached to the outer wall of the sewage storage chamber (5). The elastic inner scraping ring (12) and the elastic outer scraping ring (13) are connected by a connecting section (14), which is connected to the lifting drive assembly.

6. The apparatus for advanced reduction pretreatment to control hazardous organic matter in wastewater at its source, as described in claim 5, is characterized in that... The lifting drive assembly includes a screw (15) extending axially within the sewage storage chamber, and a screw hole (16) provided on the connecting section (14). The number and position of the screw (15) and the connecting section (14) are corresponding. The screw (15) meshes through the screw hole (16). The screw (15) is connected to the circumferential drive for transmission.

7. The apparatus for advanced reduction pretreatment to control hazardous organic matter in wastewater at its source according to claim 5, characterized in that, The length direction of the connecting section (14) is adapted to the radial direction of the sewage storage cavity (5), and the width direction forms an acute angle with the circumference of the sewage storage cavity (5).

8. The apparatus for advanced reduction pretreatment to control hazardous organic matter in wastewater at its source according to claim 1, characterized in that, The auxiliary agent dripping assembly (6) includes a sulfite dripping tube (17) and a pH adjustment tube (18) installed on the top cover of the reactor. The sulfite dripping tube (17) and the pH adjustment tube (18) are respectively equipped with a flow valve (19). The upper end of the sulfite dripping tube (17) is connected to the sulfite storage tank (20), and the lower end can quantitatively drip sulfite into the wastewater storage chamber (5). The upper end of the pH adjustment tube (18) is connected to the pH adjustment agent storage tank (21), and the lower end can quantitatively drip pH adjustment agent into the wastewater storage chamber (5).

9. The apparatus for advanced reduction pretreatment to control hazardous organic matter in wastewater at its source, as described in claim 8, is characterized in that... An ultraviolet radiation sensor is provided between the installation pipe (3) and the ultraviolet lamp assembly (4), and an ultraviolet absorption sensor and a pH sensor are provided in the sewage storage chamber (5). The ultraviolet radiation sensor, ultraviolet absorption sensor, pH sensor, ultraviolet lamp assembly and the switch flow valve (19) are all electrically connected to the control panel.

10. The apparatus for advanced reduction pretreatment to control hazardous organic matter in wastewater at its source according to any one of claims 1-9, characterized in that, The reactor (1) is provided with an inlet (22) at the top and an outlet (23) at the bottom. A transfer tank (24) is connected below the outlet (23). A filter assembly (25) is provided between the outlet (23) and the transfer tank (24). A return pipe (26) is connected to the lower part of the transfer tank (24). A power pump body (27) is connected to the return pipe (26), which can return the sewage in the transfer tank (24) to the upper part of the sewage storage chamber (5).

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