Landfill leachate advanced treatment mechanism based on ultraviolet-hydrogen peroxide oxygen

Abstract

The utility model relates to the technical field of advanced treatment of landfill leachate, and discloses an ultraviolet-hydrogen peroxide oxygen-based advanced treatment mechanism for landfill leachate, which comprises a reaction barrel, a water inlet pipe is fixedly connected to the side wall of the reaction barrel, a top cover is arranged on the upper surface of the reaction barrel, an output pipe is fixedly connected to the side wall of the reaction barrel, and a water outlet pipe is arranged on the side wall of the reaction barrel. A settling box is arranged on the side wall of the output pipe, a filtering box is arranged on the side wall of the settling box, an activated carbon plate is arranged in the filtering box, a water outlet pipe is fixedly connected to the side wall of the filtering box, a deep treatment mechanism is arranged on the side wall of the reaction barrel, and a fixing assembly is arranged on the side wall of the activated carbon plate. According to the device, the ultraviolet lamp is started for irradiation, meanwhile, hydrogen peroxide is conveyed into the reaction barrel through the metering pump, under irradiation of ultraviolet light, the hydrogen peroxide is decomposed to generate hydroxyl free radicals, landfill leachate is gradually degraded into small molecular substances, and through the structure, the treatment capacity of the device is improved, and the operation cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of landfill leachate advanced treatment technology, especially based on ultraviolet - hydrogen peroxide oxygen's landfill leachate advanced treatment mechanism. BACKGROUND

[0002] The existing landfill leachate advanced treatment mechanism commonly adopts the combined process of "pretreatment + biological treatment + advanced treatment". In the pretreatment stage, the large particle suspended solids and part of the heavy metal ions in the leachate are removed by grating, sedimentation and other ways. The biological treatment relies mainly on the metabolic action of microorganisms to decompose and transform the organic matter in the leachate. For example, the anaerobic biological treatment and aerobic biological treatment are combined. In the anaerobic stage, the macromolecular organic matter is decomposed into small molecular organic acids, and in the aerobic stage, the intermediates are further oxidized and decomposed. In the advanced treatment stage, the membrane separation technology such as ultrafiltration and reverse osmosis is commonly used to remove the remaining organic matter, salt and other pollutants through the screening action of the membrane to improve the water quality.

[0003] The existing landfill leachate advanced treatment mechanism adopts the combined process of "pretreatment + biological treatment + advanced treatment" to treat the landfill leachate. The salt content of the landfill leachate gradually increases during long-term use, the biodegradability becomes poor, the water production rate of the membrane decreases, a vicious cycle is formed, and the normal production requirements cannot be met. Therefore, the landfill leachate advanced treatment mechanism based on ultraviolet - hydrogen peroxide oxygen is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a landfill leachate advanced treatment mechanism based on ultraviolet - hydrogen peroxide oxygen, aiming at improving the problems in the prior art that the salt content of the landfill leachate gradually increases during long-term use, the biodegradability becomes poor, the water production rate of the membrane decreases, a vicious cycle is formed, and the normal production requirements cannot be met.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The landfill leachate advanced treatment mechanism based on ultraviolet - hydrogen peroxide oxygen comprises a reaction bucket, a water inlet pipe is fixedly connected to the side wall of the reaction bucket, a top cover is arranged on the upper surface of the reaction bucket, an output pipe is fixedly connected to the side wall of the reaction bucket, a sedimentation tank is arranged on the side wall of the output pipe, a filter tank is arranged on the side wall of the sedimentation tank, an activated carbon plate is arranged in the filter tank, a water outlet pipe is fixedly connected to the side wall of the filter tank, an advanced treatment mechanism is arranged on the side wall of the reaction bucket, and a fixing assembly is arranged on the side wall of the activated carbon plate.

[0007] The deep treatment mechanism includes a hydrogen peroxide storage tank, a connecting pipe one is fixedly connected to the side wall of the hydrogen peroxide storage tank, a metering pump is arranged on the side wall of the reaction bucket, one end of the connecting pipe one is fixedly connected to the input end of the metering pump, a conveying pipe is fixedly connected to the output end of the metering pump, one end of the conveying pipe is fixedly connected to the inside of the reaction bucket, a motor is fixedly connected to the upper surface of the top cover, stirring blades are fixedly connected to the output end of the motor, a lamp holder is fixedly connected to the lower surface of the top cover, and an ultraviolet lamp is arranged in the lamp holder;

[0008] As a further description of the above technical solution:

[0009] The fixing assembly includes a mounting shell fixedly connected to the inside of the activated carbon plate;

[0010] As a further description of the above technical solution:

[0011] The sediment tank is fixedly connected with a blowdown pipe and a connecting pipe two, and one end of the connecting pipe two is fixedly connected to the inside of the filter box;

[0012] As a further description of the above technical solution:

[0013] The filter box is provided with a clamping groove in the inside, and the mounting shell is slidably connected to the inside of the clamping groove;

[0014] As a further description of the above technical solution:

[0015] The mounting shell is slidably connected with a pressing rod in the inside, and the pressing rod is fixedly connected with a fixing ring on the side wall;

[0016] As a further description of the above technical solution:

[0017] The pressing rod is sleeved with a spring on the side wall, one end of the spring is fixedly connected to the inside of the mounting shell, and the other end of the spring is fixedly connected to the side wall of the fixing ring;

[0018] As a further description of the above technical solution:

[0019] The pressing rod is fixedly connected with a rotating shaft in the inside, and the rotating shaft is rotatably connected with a rotating plate on the side wall;

[0020] As a further description of the above technical solution:

[0021] The mounting shell is fixedly connected with a fixing rod in the inside, the rotating plate is rotatably connected to the side wall of the fixing rod in the inside, and the rotating plate is slidably connected to the inside of the clamping groove.

[0022] The utility model has the advantages of the following:

[0023] 1. The utility model discloses a reaction bucket is arranged to the inside of the reaction bucket through the percolate, then through starting ultraviolet lamp to its irradiation, the metering pump is sent to the inside of reaction bucket hydrogen peroxide, under the irradiation of ultraviolet light, hydrogen peroxide decomposes and produces hydroxyl radical, can with the organic matter, ammonia nitrogen and so on pollutant in garbage percolate fast oxidation reaction, gradually degrades into small molecule substance or harmless carbon dioxide, water and nitrogen etc., solve part garbage percolate depth processing mechanism adopts " pretreatment + biological treatment + depth treatment " combined process to handle garbage percolate, long -term use garbage percolate salt content can gradually increase, the biodegradability is poor, the membrane water production rate drops, forms vicious circle, can not satisfy normal production requirement's problem, improve the processing capacity of equipment through above -mentioned structure, reduce operating cost.

[0024] 2. The utility model discloses a further adsorption of percolate by activated carbon plate, improve percolate processing quality, by pressing the pressing rod and rotating the rotating plate out of the card slot, thereby achieving the effect of easy replacement of the activated carbon plate, improving the practicability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional view of the garbage leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide oxygen is provided for the utility model;

[0026] Figure 2 A structure diagram of the reaction bucket of the garbage leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide oxygen is provided for the utility model;

[0027] Figure 3 A structure diagram of the filter box of the garbage leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide oxygen is provided for the utility model;

[0028] Figure 4 A structure diagram of the mounting shell of the garbage leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide oxygen is provided for the utility model.

[0029] LEGEND:

[0030] 1, reaction bucket, 2, inlet pipe, 3, top cover, 4, motor, 5, stirring blade, 6, lamp holder, 7, ultraviolet lamp, 8, hydrogen peroxide storage tank, 9, metering pump, 10, conveying pipe, 11, connecting pipe one, 12, output pipe, 13, sedimentation tank, 14, blowdown pipe, 15, connecting pipe two, 16, filter box, 17, water outlet pipe, 18, activated carbon plate, 19, card slot, 20, mounting shell, 21, pressing rod, 22, fixed ring, 23, spring, 24, shaft, 25, fixed rod, 26, rotating plate. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0032] With reference to Figures 1-2The utility model provides an embodiment based on ultraviolet - hydrogen peroxide oxygen's landfill leachate advanced treatment mechanism, including reaction bucket 1, the side wall fixed connection of reaction bucket 1 has inlet pipe 2, and inlet pipe 2 is used for inputting landfill leachate to reaction bucket 1, and the upper surface of reaction bucket 1 is provided with top cap 3, and top cap 3 plays the role of sealing reaction bucket 1, and the side wall fixed connection of reaction bucket 1 has output pipe 12, and output pipe 12 is the passage that liquid after processing flows out reaction bucket 1, and the side wall of output pipe 12 is provided with sediment tank 13, and sediment tank 13 can make the suspended particles in the liquid that flows from reaction bucket 1 precipitate, and the impurity is separated from liquid by gravity, thereby reducing the solid impurity content in liquid. The side wall of sediment tank 13 is provided with filter box 16, and the inside of filter box 16 is provided with activated carbon plate 18, and activated carbon plate 18 carries out adsorption filtration to the liquid after sedimentation by utilizing its own abundant pore structure, and the side wall fixed connection of filter box 16 has outlet pipe 17, and outlet pipe 17 is the final discharge passage of standard liquid after depth treatment, so as to discharge or recycle the water treated. The side wall of reaction bucket 1 is provided with advanced treatment mechanism, and the advanced treatment mechanism includes hydrogen peroxide storage tank 8, and hydrogen peroxide storage tank 8 is used for storing hydrogen peroxide solution, and the side wall fixed connection of hydrogen peroxide storage tank 8 has connecting pipe one 11, and the side wall of reaction bucket 1 is provided with metering pump 9, and metering pump 9 can accurately control the adding amount of hydrogen peroxide, and ensures that the concentration of hydrogen peroxide in the reaction process is appropriate, which guarantees good oxidation effect on pollutants in landfill leachate, and avoids waste and possible secondary pollution caused by excessive hydrogen peroxide. One end of connecting pipe one 11 is fixedly connected at the input end of metering pump 9, and the output end of metering pump 9 is fixedly connected with conveying pipe 10, and one end of conveying pipe 10 is fixedly connected in the inside of reaction bucket 1, and hydrogen peroxide in hydrogen peroxide storage tank 8 is conveyed to reaction bucket 1 and fully mixed with landfill leachate for oxidation reaction according to the set amount by metering pump 9. The upper surface of top cap 3 is fixedly connected with motor 4, and motor 4 output end is fixedly connected with stirring vane 5, and motor 4 drives stirring vane 5 to rotate, and stirring vane 5 stirs landfill leachate and hydrogen peroxide solution in reaction bucket 1, so that they can be quickly and uniformly mixed, and the lower surface of top cap 3 is fixedly connected with lamp holder 6, and lamp holder 6 is provided with ultraviolet lamp 7, and the ultraviolet emitted by ultraviolet lamp 7 can excite hydrogen peroxide to produce hydroxyl radical with stronger oxidizing property, further enhancing the oxidation decomposition ability of pollutants such as refractory organic matter in landfill leachate, and the side wall fixed connection of sediment tank 13 has blowoff pipe 14, and blowoff pipe 14 is used for discharging the solid impurities precipitated at the bottom of sediment tank 13, and keeps the normal operation and sedimentation effect of sediment tank 13. The side wall fixed connection of sediment tank 13 has connecting pipe two 15, and one end of connecting pipe two 15 is fixedly connected in the inside of filter box 16, and connecting pipe two 15 is the passage that the liquid after preliminary sedimentation in sediment tank 13 enters filter box 16, so that the liquid can flow into filter box 16 for next activated carbon adsorption filtration treatment.The side wall of the activated carbon plate 18 is provided with a fixing assembly for stably installing the activated carbon plate 18 in the filter box 16, preventing displacement or loosening of the activated carbon plate 18 under the impact of water flow and the like, and ensuring stable and reliable filtering effect of the filter box 16.

[0033] In the process of using the device, first, the landfill leachate is transported into the reaction barrel 1 through the water inlet pipe 2, which serves as the initial channel for the landfill leachate to enter the treatment system, ensuring that the leachate flows into the reaction barrel 1 stably and continuously, providing sufficient raw materials for subsequent treatment. Then, hydrogen peroxide is added to the inside of the reaction barrel 1 by starting the metering pump 9, which can accurately control the amount of hydrogen peroxide added. Due to the differences in pollution degree and composition of different batches of landfill leachate, precise measurement of the amount of hydrogen peroxide added is crucial. The appropriate concentration of hydrogen peroxide can not only ensure good oxidation effect on pollutants, but also avoid the problems of increased treatment cost and possible secondary pollution caused by excessive addition, ensuring that the entire oxidation reaction takes place in an ideal chemical environment. Then, the motor 4 is started to drive the stirring blade 5 to rotate, providing a stable power source for the stirring blade 5. The stirring blade 5 rotates at high speed in the reaction barrel 1. The stirring action makes hydrogen peroxide and leachate mix thoroughly, breaks the concentration gradient in the solution, and allows reaction molecules to collide and contact more frequently, greatly improving reaction rate and efficiency, making the oxidation reaction proceed uniformly and quickly in the reaction barrel 1, avoiding local over-reaction or under-reaction, and ensuring that each part of the leachate is effectively treated. Then, the ultraviolet lamp 7 is started to irradiate the leachate, emitting ultraviolet light of a specific wavelength. Under the irradiation of ultraviolet light, hydrogen peroxide decomposes to produce hydroxyl radicals. Hydroxyl radicals have extremely strong oxidizing properties, with a very high oxidation-reduction potential, and can rapidly oxidize organic matter, ammonia nitrogen and other pollutants in the landfill leachate. For organic matter, hydroxyl radicals can attack its chemical bonds, causing its molecular structure to break and recombine, gradually degrading it into small molecular substances such as organic acids, aldehydes and other intermediates, and eventually further oxidizing it into harmless carbon dioxide and water; for ammonia nitrogen, hydroxyl radicals can oxidize the nitrogen element in ammonia nitrogen to nitrogen gas and other harmless gases, effectively removing the main pollutants in the leachate and reducing the chemical oxygen demand (COD), biochemical oxygen demand (BOD) and ammonia nitrogen content. The mixed liquid after the reaction enters the sedimentation tank 13, which uses the principle of gravity sedimentation to make the solid substances produced during the reaction settle at the bottom of the tank. These solid substances may include unreacted reactants, reaction products and suspended particles originally present in the landfill leachate. The sedimentation process can effectively separate most of the solid impurities in the mixed liquid, reducing the load of subsequent treatment, and obtaining relatively clear supernatant for further treatment. The supernatant enters the filter box 16, where the activated carbon plate 18 adsorbs organic matter, color, part of heavy metal ions and odor substances in the landfill leachate. The activated carbon plate 18 has a developed pore structure and a large specific surface area, which can provide a large number of adsorption sites for pollutants.For organic matter, activated carbon adsorbs its molecules on the pore surface through physical adsorption, reducing the concentration of organic matter in the solution; for color, activated carbon can adsorb colored substance molecules in the solution, making the solution color lighter and improving the clarity of the effluent; for some heavy metal ions, the functional groups on the surface of activated carbon can chemically react with heavy metal ions or electrostatically adsorb them, fixing them on the surface of activated carbon and reducing the content of heavy metals in the effluent; for odor substances, activated carbon can effectively adsorb volatile organic compounds and other odor-producing components, further removing residual suspended solids and fine particles, significantly improving the water quality of the effluent, so that the treated effluent meets the standard and is discharged through the effluent pipe 17 or reused. The effluent pipe 17 serves as a discharge channel for the treated effluent, and its position and diameter are designed to consider the flow rate and discharge destination of the effluent to ensure that the treated water can be smoothly discharged and reasonably utilized.

[0034] Referring to Figures 3-4 The fixed assembly includes a mounting shell 20 fixedly connected to the side wall of the activated carbon plate 18 inside. The mounting shell 20 provides a mounting base and protection for the internal components, and integrates the connection structure of the activated carbon plate 18 and the filter box 16, making the connection more stable. The filter box 16 is internally provided with a clamping groove 19, and the side wall of the mounting shell 20 is slidingly connected inside the clamping groove 19. The cooperation of the clamping groove 19 and the mounting shell 20 provides a positioning and guiding function for the activated carbon plate 18, enabling the activated carbon plate 18 to be accurately inserted into the predetermined position during installation. The mounting shell 20 is slidingly connected with a pressing rod 21 inside, and the side wall of the pressing rod 21 is fixedly connected with a fixing ring 22. The fixing ring 22 provides a connecting force point for a spring 23, and the side wall of the pressing rod 21 is sleeved with the spring 23. One end of the spring 23 is fixedly connected inside the mounting shell 20, and the other end is fixedly connected to the side wall of the fixing ring 22. The spring 23 plays a role of automatic reset and pre-tightening in the fixed assembly. The pressing rod 21 is fixedly connected with a rotating shaft 24 inside, which serves as a rotating shaft of a rotating plate 26, enabling the rotating plate 26 to rotate around it. The linear motion of the pressing rod 21 is converted into the rotary motion of the rotating plate 26, realizing the transmission of force and the conversion of motion form, thereby controlling the clamping or disengagement state of the rotating plate 26 and the clamping groove 19. The side wall of the rotating shaft 24 is rotatably connected with the rotating plate 26, and the inside of the mounting shell 20 is fixedly connected with a fixing rod 25. The rotating plate 26 is rotatably connected to the side wall of the fixing rod 25 inside, and the fixing rod 25 and the rotating shaft 24 jointly constitute a rotating support structure of the rotating plate 26, enabling the rotating plate 26 to maintain a stable rotating track during movement and ensuring that the rotating plate 26 can accurately cooperate with the clamping groove 19. The side wall of the rotating plate 26 is slidingly connected inside the clamping groove 19.

[0035] When the activated carbon plate 18 needs to be replaced, first press the pressing rod 21, the pressing rod 21 receives external force and transmits the force inward, so that the fixed ring 22 extrudes the spring 23, the fixed ring 22 plays a role in force transmission and dispersion between the pressing rod 21 and the spring 23, and can uniformly transmit the force applied by the pressing rod 21 to the spring 23, ensuring that the spring 23 is uniformly and stably compressed. The spring 23 plays a key role in elastic energy storage and reset in the fixed assembly. When extruded, it converts the externally applied mechanical energy into elastic potential energy and stores it, providing a power source for subsequent reset of the fixed assembly, ensuring the reversibility and reliability of the entire fixing and unlocking process. The downward sliding of the pressing rod 21 drives the synchronous downward movement of the rotating shaft 24 fixedly connected inside it. Because the rotating shaft 24 has a rotating plate 26 rotatably connected to its side wall, and the fixed rod 25 fixedly connected inside the installation shell 20 is rotatably connected to the rotating plate 26, a structure similar to a connecting rod mechanism is formed. The linear sliding motion of the pressing rod 21 is converted into the rotary motion of the rotating plate 26 around the fixed rod 25 through the rotating shaft 24, thereby changing the angular position of the rotating plate 26. The rotating plate 26 is originally slidably connected to the side wall of the clamping groove 19 and plays a role in fixing the activated carbon plate 18. When the rotating plate 26 rotates, its clamping state with the clamping groove 19 is released, and it is separated from the inside of the clamping groove 19, so that the activated carbon plate 18 loses the transverse restriction and fixing effect. Then the activated carbon plate 18 can be taken out by lifting it up, so that it can be replaced. After losing the fixing, the activated carbon plate 18 can move freely in the vertical direction. The lifting operation takes advantage of the characteristics that the gravity of the activated carbon plate 18 is relatively small and is not hindered by other obstacles, and simply and directly takes it out of the filter box 16, so as to install a new activated carbon plate 18 or clean and regenerate the taken-out activated carbon plate 18 for maintenance operation, so as to ensure that the filter box 16 can continuously and efficiently adsorb and filter the landfill leachate.

[0036] Working principle: when using the device for processing, first through the water inlet pipe 2, the landfill leachate is transported into the reaction bucket 1, then the metering pump 9 is started to add hydrogen peroxide into the reaction bucket 1, then the motor 4 is started to drive the stirring blade 5 to rotate, so that the hydrogen peroxide and the leachate are fully mixed, then the ultraviolet lamp 7 is started to irradiate the leachate, under the irradiation of ultraviolet light, hydrogen peroxide decomposes to produce hydroxyl radicals. Hydroxyl radicals have strong oxidizing property, can rapidly oxidize organic matter, ammonia nitrogen and other pollutants in landfill leachate, and gradually degrade them into small molecular substances or harmless carbon dioxide, water and nitrogen, etc. Then the mixed liquid after reaction enters the sedimentation tank 13, the solid substances produced in the reaction process are separated out, the supernatant enters the filter box 16, the organic matter, color, part of heavy metal ions and odor substances in the landfill leachate are adsorbed by the activated carbon plate 18, further removing the residual suspended solids and fine particles, and finally the treated effluent meets the standard and is discharged through the water outlet pipe 17 or reused. When it is necessary to replace the activated carbon plate 18, first press the pressing rod 21, so that the fixing ring 22 extrudes the spring 23, the downward sliding of the pressing rod 21 makes the rotating plate 26 rotate, so as to be separated from the clamping groove 19, so that the activated carbon plate 18 is unfixed, then the activated carbon plate 18 is taken out by lifting it, and it is replaced.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide, comprising a reaction tank (1), characterized in that: The reaction tank (1) is fixedly connected to the side wall of the water inlet pipe (2), the reaction tank (1) is provided with a top cover (3) on the upper surface of the reaction tank (1), the reaction tank (1) is fixedly connected to the side wall of the water outlet pipe (12), the side wall of the water outlet pipe (12) is provided with a sedimentation tank (13), the side wall of the sedimentation tank (13) is provided with a filter box (16), the filter box (16) is provided with an activated carbon plate (18) inside, the side wall of the filter box (16) is fixedly connected to the water outlet pipe (17), the side wall of the reaction tank (1) is provided with a deep treatment mechanism, and the side wall of the activated carbon plate (18) is provided with a fixing component; The deep processing unit includes a hydrogen peroxide storage tank (8), a connecting pipe (11) is fixedly connected to the side wall of the hydrogen peroxide storage tank (8), a metering pump (9) is provided on the side wall of the reaction tank (1), one end of the connecting pipe (11) is fixedly connected to the input end of the metering pump (9), a delivery pipe (10) is fixedly connected to the output end of the metering pump (9), one end of the delivery pipe (10) is fixedly connected to the inside of the reaction tank (1), a motor (4) is fixedly connected to the upper surface of the top cover (3), a stirring blade (5) is fixedly connected to the output end of the motor (4), a lamp holder (6) is fixedly connected to the lower surface of the top cover (3), and an ultraviolet lamp (7) is provided inside the lamp holder (6).

2. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 1, characterized in that: The fixing component includes a mounting shell (20), the sidewall of which is fixedly connected to the inside of the activated carbon plate (18).

3. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 1, characterized in that: The sedimentation tank (13) is fixedly connected to a drain pipe (14) on its side wall, and a connecting pipe (15) is fixedly connected to the side wall of the sedimentation tank (13). One end of the connecting pipe (15) is fixedly connected to the inside of the filter box (16).

4. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 2, characterized in that: The filter box (16) has a slot (19) inside, and the side wall of the mounting shell (20) is slidably connected to the slot (19).

5. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 4, characterized in that: The mounting housing (20) has a sliding connection to a pressing rod (21), and a fixing ring (22) is fixedly connected to the side wall of the pressing rod (21).

6. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 5, characterized in that: A spring (23) is sleeved on the side wall of the pressing rod (21). One end of the spring (23) is fixedly connected to the inside of the mounting shell (20), and the other end of the spring (23) is fixedly connected to the side wall of the fixing ring (22).

7. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 6, characterized in that: The pressing rod (21) is fixedly connected to a rotating shaft (24), and a rotating plate (26) is rotatably connected to the side wall of the rotating shaft (24).

8. The landfill leachate deep treatment mechanism based on ultraviolet-hydrogen peroxide according to claim 7, characterized in that: The mounting shell (20) is fixedly connected to a fixing rod (25), the rotating plate (26) is rotatably connected to the side wall of the fixing rod (25), and the side wall of the rotating plate (26) is slidably connected to the slot (19).

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