Treatment facilities for leachate from hazardous waste landfills

Abstract

This invention pertains to the field of hazardous waste landfills, particularly to the treatment of leachate from hazardous waste landfills. Addressing the problems of low effluent rates, inability to operate for extended periods, high energy consumption in evaporation processes, high maintenance costs, and long operating costs, this invention proposes the following solution: a leachate conditioning tank, a leachate single-stage evaporator, a leachate evaporator-condenser, a leachate evaporator-condenser tank, a condensate cooler, an ion exchange resin raw water tank, an ion exchange system, an ion exchange product water tank, and a biochemical conditioning tank. This invention improves overall treatment efficiency and reduces production costs by independently developing parameters and compositions for ion exchange resins and optimizing the production process. It utilizes a low-consumption evaporation + ion exchange resin + biological treatment + membrane treatment process. The entire set of equipment employs mechanized production, which not only improves production efficiency and reduces labor costs but also significantly enhances the safety and sustainability of the production line.

Description

Technical Field

[0001] This invention relates to the field of hazardous waste landfill technology, and more particularly to a treatment apparatus for leachate from hazardous waste landfills. Background Technology

[0002] Landfill leachate is generally generated by rainwater infiltration, surface water inflow, groundwater infiltration, and moisture from the waste itself and the degradation process. The chemical composition of leachate varies considerably, increasing in concentration with the age of the landfill. Currently, there are three methods for treating leachate on the market: "biological treatment + membrane treatment process, full membrane adsorption filtration treatment process, and low-consumption evaporation + Kehaisi ion exchange treatment process." While these methods offer significant treatment effects, they also have high operating costs, require a high degree of automation, and are inefficient.

[0003] Existing methods for treating leachate from hazardous waste landfills still have the following problems:

[0004] 1. The biological treatment + membrane treatment process has a low effluent rate, which increases the difficulty of reinjection; the biological treatment effect is unstable, the biological strains need to be cultivated and acclimatized, the operating cost is high, and the biochemical effect on high concentration leachate is extremely poor. Once started, it must be run continuously and cannot be shut down for a long time.

[0005] 2. The all-membrane adsorption filtration process is highly sensitive to the quality of the leachate source water, and the effluent rate is easily affected by factors such as suspended solids (SS), conductivity, and temperature. Using a two-stage reverse osmosis process easily leads to membrane clogging, high membrane replacement frequency, low effluent rate, and high operating costs.

[0006] 3. The process of low-consumption evaporation + Kehaisi ion exchange treatment is adopted. This process has high requirements for the materials of the equipment, and the evaporation process has high energy consumption, resulting in high maintenance and operating costs. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies, such as low water output, increased difficulty in reinjection, inability to operate for extended periods, easy clogging of reverse osmosis membranes, high energy consumption in evaporation processes, high maintenance costs, and long operating costs. The invention proposes a treatment device for leachate from hazardous waste landfills.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A treatment device for leachate from a hazardous waste landfill includes a leachate equalization tank, a leachate single-stage distillation vessel, a leachate evaporator / condenser, a leachate evaporator / condenser tank, a condensate cooler, an ion exchange resin raw water tank, an ion exchange system, an ion exchange permeate tank, a biological equalization tank, an anaerobic tank, a primary aerobic tank, an anoxic tank, a secondary aerobic tank, an MBR tank, a discharge tank, and a Parshall metering tank. The leachate equalization tank and the leachate single-stage distillation vessel are connected by pipelines. The leachate single-stage distillation vessel and the leachate evaporator / condenser are connected by pipelines. The leachate evaporator / condenser and the leachate evaporator / condenser tank are connected by pipelines. The leachate evaporator / condenser tank and the condensate cooler are connected by pipelines. The condensate cooler and the ion exchange resin raw water tank are connected by pipelines. The tanks are connected by pipes. The ion exchange resin raw water tank is connected to the ion exchange system by pipes. The ion exchange system is connected to the ion exchange product water tank by pipes. The ion exchange product water tank is connected to the biological conditioning tank by pipes. The biological conditioning tank is connected to the anaerobic tank by pipes. The anaerobic tank is connected to the No. 1 aerobic tank by pipes. The No. 1 aerobic tank is connected to the anoxic tank by pipes. The anoxic tank is connected to the No. 2 aerobic tank by pipes. The No. 2 aerobic tank is connected to the MBR tank by pipes. The MBR tank is connected to the discharge tank by pipes. The discharge tank is connected to the industrial wastewater treatment plant by pipes. The Parshall metering tank is installed inside the pipes of the discharge tank.

[0010] It also includes a storage tank located at the front end of the leachate equalization tank. The leachate discharged from the storage tank enters the leachate equalization tank for system treatment. A second filter screen is fixedly connected to the inner wall of the storage tank. The second filter screen is located in the lower middle position of the storage tank. Multiple filtrate tanks are fixedly connected to the top of the second filter screen. An inclined block is fixedly connected to the top of the filtrate tank. A communicating hole is opened inside the filtrate tank. Multiple perforations are opened on the outer wall of the filtrate tank. A fixing box is fixedly connected between the multiple filtrate tanks. A discharge component for ejecting waste material is provided inside the fixing box.

[0011] Below the second filter screen is a discharge assembly for extracting leachate;

[0012] The storage box has a slidable placement box through its top, and the placement box has a feeding assembly for feeding waste materials at its bottom.

[0013] In one possible design, the leachate conditioning tank is equipped with a pretreatment system, the pretreatment feed comprising H2SO4 and NaOH.

[0014] In one possible design, the parameters controlled by the leachate single-electrode reactor are: temperature (<85°C), pressure (-0.065MPa to -0.075MPa), and liquid level (3 / 5 of the reactor's capacity).

[0015] In one possible design, the control parameters for the various operations of the ion exchange resin in the ion exchange system are as follows: Adsorption: Flow rate 6-8 m³ / h 3 / h, copper content below 5mg / l, regeneration: flow rate 5-6m 3 / h.

[0016] In one possible design, an AOAO system is installed between the second aerobic tank and the MBR tank.

[0017] In one possible design, the parameters for biological sludge control in the AOAO system are as follows: influent requirements: COD (3000~4000mg / L), NH3-N (0~50mg / L), pH value (6.5~8), and water temperature (33~38℃).

[0018] In one possible design, the parameters of the MBR membrane are: pore size less than 0.02 μm, tensile strength greater than 280 N, pure water flux reaching 120 L / m2. kPa, coating peel resistance reaching 0.6 MPa, pH tolerance range of 1 to 13, membrane fiber with a full sponge structure, and operating pressure range between -20 and 50 kPa.

[0019] In one possible design, the discharge assembly includes a second triangular block fixedly connected to the inner wall of one side of the storage tank. A plurality of first filter screens are fixedly connected between the bottom of the second triangular block and the bottom inner wall of the storage tank. A rectangular plate is fixedly connected to one side of the storage tank. A reverse osmosis blocking pump is fixedly connected to the top of the rectangular plate. The inlet of the reverse osmosis blocking pump is fixedly connected to an inlet pipe. One end of the inlet pipe extends into the interior of the storage tank. The outlet of the reverse osmosis blocking pump is fixedly connected to an outlet pipe.

[0020] In one possible design, the discharge assembly includes a mounting plate disposed inside a fixed box. The bottom of the mounting plate is slidably connected to the top of a second filter. Two symmetrically arranged compression springs are fixedly connected between one side of the mounting plate and the inner wall of one side of the fixed box. The bottom of the mounting plate is provided with a plurality of first bristles that cooperate with the second filter. A plurality of second bristles are provided on both sides of the mounting plate. A push rod is fixedly connected to one side of the mounting plate. A door panel is hinged to one side of the storage box. The push rod cooperates with the door panel. A handle is provided on one side of the door panel.

[0021] In one possible design, the feeding assembly includes two symmetrically arranged fixed plates fixedly connected to the bottom of the placement box. A rotating shaft is rotatably connected to one side of each fixed plate, and a gear is fixedly sleeved on the outer wall of the rotating shaft. A rectangular hole is opened inside the placement box. Two symmetrically arranged first racks are fixedly connected to the inner wall of one side of the placement box. The first racks cooperate with the rectangular hole. Two symmetrically arranged baffles are slidably connected to the bottom of the placement box. A second rack is fixedly connected to one side of each baffle. Both the second rack and the first rack mesh with the gear. A feeding port is opened at the bottom of the placement box. Two symmetrically arranged first triangular blocks are fixedly connected to the inner wall of the bottom of the placement box.

[0022] In this application, waste is put into the storage box. By lifting the storage box, the storage box moves the fixing plate vertically upward. The fixing plate moves the rotating shaft and gear vertically upward. Since the gear meshes with the first rack, the gear rotates. The first bristles move the second rack laterally. The second rack moves the baffle laterally. The baffle gradually blocks the feed inlet to prevent waste from leaking out.

[0023] Waste is fed into the placement box. When the placement box descends to its original position, the two baffles open, and the waste slides down the inclined plane of the two No. 1 triangular blocks. The waste falls between multiple filtrate tanks and is filtered through multiple percolation holes to prevent waste from accumulating and reducing the percolation effect. At the same time, the waste between multiple filtrate tanks can be diverted through the connecting holes to improve the percolation effect.

[0024] When waste needs to be cleaned, the door panel can be opened. At this time, the mounting plate moves laterally under the elastic force of the compression spring. The mounting plate drives the first and second brushes to move laterally. The first and second brushes clean the filtrate tank and the second filter screen. The mounting plate pushes out the waste. After the leachate is filtered by the second filter screen, it slides down the inclined surface of the second triangular block, and then passes through multiple first filters before being drawn out by the reverse osmosis blocking pump, thereby reducing the possibility of the reverse osmosis blocking pump clogging.

[0025] The leachate discharged from the storage tank first enters the equalization tank, where acidification and anaerobic reactions occur. Then, it undergoes coagulation and sedimentation in the pretreatment equipment. Lime is added to the leachate to remove heavy metal ions and adjust the pH. The leachate is then pumped to a single-stage evaporator for evaporation. Through compression evaporation, pollutants are separated from water, resulting in water purification. The condensate then enters an ion exchange system for ion replacement, effectively adsorbing heavy metal ions, chloride ions, calcium ions, magnesium ions, etc. The treated wastewater then enters an AOAO system for preliminary removal of COD and trace amounts of ammonia nitrogen. Finally, the biological effluent undergoes further treatment in an MBR membrane bioreactor to remove CODcr, ammonia nitrogen, color, TDS, etc. After reaching the required standards, the treated effluent is discharged into the industrial wastewater treatment plant for further treatment.

[0026] In this invention, by independently preparing parameters and compositions for ion exchange resins and optimizing the production process, the problems of high cost, low efficiency, slow results, and inability to be shut down for extended periods after operation in the original leachate treatment process are solved.

[0027] In this invention, a low-consumption evaporation + ion exchange resin + biological treatment + membrane treatment process is used, which improves the overall treatment efficiency, reduces production costs, and enhances the production and disposal capacity in case of emergencies.

[0028] In this invention, the entire set of equipment uses mechanized production, which not only improves production efficiency and reduces labor costs in production, but also enhances the safety and sustainable use of the production line to a greater extent. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the storage tank in the hazardous waste landfill leachate treatment device proposed in this invention;

[0030] Figure 2 This is a three-dimensional cross-sectional view of the storage tank in the hazardous waste landfill leachate treatment device proposed in this invention.

[0031] Figure 3 This is a schematic diagram of the storage tank in the hazardous waste landfill leachate treatment device proposed in this invention;

[0032] Figure 4 This is an exploded structural diagram of the fixed box in the hazardous waste landfill leachate treatment device proposed in this invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the filtrate tank in the hazardous waste landfill leachate treatment device proposed in this invention;

[0034] Figure 6This is a partial structural diagram of the placement box in the hazardous waste landfill leachate treatment device proposed in this invention.

[0035] In the diagram: 1. Storage box; 2. Placement box; 3. Door panel; 4. Handle; 5. Inlet pipe; 6. Reverse osmosis blocking pump; 7. Outlet pipe; 8. Rectangular plate; 9. First rack; 10. Feed inlet; 11. First triangular block; 12. Push rod; 13. First filter screen; 14. Second triangular block; 15. Second filter screen; 16. Filtration tank; 17. Fixing box; 18. Compression spring; 19. First brush bristles; 20. Second brush bristles; 21. Mounting plate; 22. Inclined block; 23. Percolation hole; 24. Connecting hole; 25. Baffle; 26. Rectangular hole; 27. Fixing plate; 28. Rotating shaft; 29. ​​Gear; 30. Second rack. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Example 1

[0038] Reference Figure 1-6This is a treatment device for leachate from hazardous waste landfills, used in the field of hazardous waste landfills. It includes: a leachate equalization tank, a leachate single-stage distillation kettle, a leachate evaporator / condenser, a leachate evaporator / condenser tank, a condensate cooler, an ion exchange resin raw water tank, an ion exchange system, an ion exchange permeate tank, a biological equalization tank, an anaerobic tank, a No. 1 aerobic tank, an anoxic tank, a No. 2 aerobic tank, an MBR tank, a discharge tank, and a Parshall metering tank. The leachate equalization tank is connected to the leachate single-stage distillation kettle via pipelines; the leachate single-stage distillation kettle is connected to the leachate evaporator / condenser via pipelines; the leachate evaporator / condenser is connected to the leachate evaporator / condenser tank via pipelines; the leachate evaporator / condenser tank is connected to the condensate cooler via pipelines; the condensate cooler is connected to the ion exchange resin raw water tank via pipelines; the ion exchange resin raw water tank is connected to the ion exchange system via pipelines; and the ion exchange system is connected to the ion exchange system via pipelines. The ion exchange permeate tank is connected to the biological conditioning tank via pipelines. The biological conditioning tank is connected to the anaerobic tank via pipelines. The anaerobic tank is connected to the No. 1 aerobic tank via pipelines. The No. 1 aerobic tank is connected to the anoxic tank via pipelines. The anoxic tank is connected to the No. 2 aerobic tank via pipelines. The No. 2 aerobic tank is connected to the MBR tank via pipelines. The MBR tank is connected to the discharge tank via pipelines. The discharge tank is connected to the industrial wastewater treatment plant via pipelines. The Parshall metering tank is located inside the pipelines of the discharge tank. The leachate conditioning tank is equipped with pretreatment, and the pretreatment feed includes H2SO4 and NaOH. The parameters controlled by the leachate single-electrolysis reactor are: temperature <85℃, pressure -0.065MPa to -0.075MPa, and liquid level 3 / 5 of the tank. The control parameters for various operations of the ion exchange resin in the ion exchange system are: adsorption: flow rate 6~8m³ / h. 3 / h, copper content below 5mg / l, regeneration: flow rate 5-6m 3 / h, an AOAO system is installed between the No. 2 aerobic tank and the MBR tank. The parameters for biological sludge control in the AOAO system are as follows: influent requirements: COD 3000~4000mg / L, NH3-N 0~50mg / L, pH value 6.5~8, water temperature 33~38℃. The parameters for the MBR membrane are: pore size less than 0.02μm, tensile strength greater than 280N, pure water flux reaching 120L / m2.Kpa, coating peel resistance reaching 0.6Mpa, pH tolerance range 1~13, membrane fiber is a full sponge structure, and operating pressure range -20~50kPa. The leachate first enters the equalization tank, where it undergoes acidification and anaerobic reaction. Then, the liquid is coagulated and precipitated by the pretreatment equipment. Lime is added to the leachate to remove heavy metal ions from the wastewater and to adjust the pH. The leachate is then pumped into a single-stage evaporator for evaporation. Through the principle of compression evaporation, pollutants in the leachate are separated from water, thus purifying the water. The condensate then enters an ion exchange system for ion replacement, which effectively adsorbs heavy metal ions, chloride ions, calcium ions, magnesium ions, etc. in the solution. The qualified wastewater then enters an AOAO system to initially remove COD and a small amount of ammonia nitrogen. The biochemical effluent is then further treated by an MBR membrane bioreactor to remove CODcr, ammonia nitrogen, color, TDS, etc. After treatment, it is discharged into the industrial wastewater treatment plant for further treatment.

[0039] It also includes a storage tank 1 located at the front end of the leachate equalization tank. The leachate discharged from the storage tank 1 enters the leachate equalization tank for system treatment. A second filter screen 15 is fixedly connected to the inner wall of the storage tank 1. The second filter screen 15 is located in the lower middle position of the storage tank 1. Multiple filtrate tanks 16 are fixedly connected to the top of the second filter screen 15. An inclined block 22 is fixedly connected to the top of the filtrate tank 16. A connecting hole 24 is opened inside the filtrate tank 16. Multiple perforations 23 are opened on the outer wall of the filtrate tank 16. A fixing box 17 is fixedly connected between the multiple filtrate tanks 16. The fixed box 17 is equipped with a discharge assembly for discharging waste. The discharge assembly includes a second triangular block 14 fixedly connected to the inner wall of one side of the storage box 1. Multiple first filters 13 are fixedly connected between the bottom of the second triangular block 14 and the bottom inner wall of the storage box 1. A rectangular plate 8 is fixedly connected to one side of the storage box 1. A reverse osmosis blocking pump 6 is fixedly connected to the top of the rectangular plate 8. The inlet of the reverse osmosis blocking pump 6 is fixedly connected to an inlet pipe 5. One end of the inlet pipe 5 extends into the interior of the storage box 1. The outlet of the reverse osmosis blocking pump 6 is fixedly connected to an outlet pipe 7.

[0040] Below the second filter screen 15 is a discharge assembly for extracting leachate. The discharge assembly includes a mounting plate 21 disposed inside the fixed box 17. The bottom of the mounting plate 21 is slidably connected to the top of the second filter screen 15. Two symmetrically arranged compression springs 18 are fixedly connected between one side of the mounting plate 21 and one side inner wall of the fixed box 17. The bottom of the mounting plate 21 is provided with multiple first bristles 19 that cooperate with the second filter screen 15. Multiple second bristles 20 are provided on both sides of the mounting plate 21. A push rod 12 is fixedly connected to one side of the mounting plate 21. A door panel 3 is hinged to one side of the storage box 1. The push rod 12 is connected to the door panel 3. The plate 3 is used in conjunction with the door plate 3. A handle 4 is provided on one side of the door plate 3. When it is necessary to clean the waste, the door plate 3 can be opened. At this time, the mounting plate 21 moves laterally under the elastic force of the compression spring 18. The mounting plate 21 drives the first brush bristles 19 and the second brush bristles 20 to move laterally. The first brush bristles 19 and the second brush bristles 20 clean the filtrate tank 16 and the second filter screen 15. The mounting plate 21 pushes out the waste. After the leachate is filtered by the second filter screen 15, it slides down the inclined surface of the second triangular block 14, and then passes through multiple first filter screens 13 before being drawn out by the reverse osmosis blocking pump 6, thereby reducing the possibility of the reverse osmosis blocking pump 6 becoming clogged.

[0041] Storage box 1 has a sliding passage through the top of placement box 2, and placement box 2 has a feeding component for feeding waste material at the bottom.

[0042] Example 2

[0043] refer to Figure 6An improvement on embodiment 1: The feeding assembly includes two symmetrically arranged fixed plates 27 fixedly connected to the bottom of the placement box 2. A rotating shaft 28 is rotatably connected to one side of the fixed plate 27. A gear 29 is fixedly sleeved on the outer wall of the rotating shaft 28. A rectangular hole 26 is opened inside the placement box 2. Two symmetrically arranged first racks 9 are fixedly connected to the inner wall of one side of the storage box 1. The first racks 9 cooperate with the rectangular hole 26. Two symmetrically arranged baffles 25 are slidably connected to the bottom of the placement box 2. A second rack 30 is fixedly connected to one side of the baffle 25. Both the second rack 30 and the first rack 9 mesh with the gear 29. A feeding port 10 is opened at the bottom of the placement box 2. Two symmetrically arranged first triangular blocks 11 are fixedly connected to the inner wall of the bottom of the placement box 2. Waste is put into the interior of the storage box 1, and the waste is fed through the placement box 2. When the box is lifted, the fixing plate 27 moves vertically upward, and the fixing plate 27 moves the rotating shaft 28 and gear 29 vertically upward. Since the gear 29 meshes with the first rack 9, the gear 29 rotates, and the first bristle 19 moves the second rack 30 laterally. The second rack 30 moves the baffle 25 laterally, and the baffle 25 gradually blocks the feed inlet 10 to prevent waste from leaking out and waste material is put into the box 2. When the box 2 is lowered to its original position, the two baffles 25 open, and the waste material slides down the inclined surface of the two first triangular blocks 11. The waste material falls between multiple filtrate tanks 16 and is filtered through multiple percolation holes 23 to prevent waste material from accumulating and reducing the percolation effect. At the same time, the waste material between multiple filtrate tanks 16 can be diverted through the connecting hole 24 to improve the percolation effect.

[0044] However, as is well known to those skilled in the art, the working principle and wiring method of the reverse osmosis blockage pump 6 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A treatment apparatus for leachate from a hazardous waste landfill, comprising a leachate equalization tank, a leachate single-stage distillation kettle, a leachate evaporator / condenser, a leachate evaporator / condenser tank, a condensate cooler, an ion exchange resin raw water tank, an ion exchange system, an ion exchange product water tank, a biochemical equalization tank, an anaerobic tank, a primary aerobic tank, an anoxic tank, a secondary aerobic tank, an MBR tank, a discharge tank, and a Parshall flume, characterized in that, The leachate conditioning tank and the leachate single-distillation kettle are connected by pipelines. The leachate single-distillation kettle and the leachate evaporator / condenser are connected by pipelines. The leachate evaporator / condenser and the leachate evaporator / condensate tank are connected by pipelines. The leachate evaporator / condensate tank and the condensate cooler are connected by pipelines. The condensate cooler and the ion exchange resin raw water tank are connected by pipelines. The ion exchange resin raw water tank and the ion exchange system are connected by pipelines. The ion exchange system and the ion exchange product water tank are connected by pipelines. The ion exchange permeate tank is connected to the biochemical conditioning tank via a pipeline. The biochemical conditioning tank is connected to the anaerobic tank via a pipeline. The anaerobic tank is connected to the No. 1 aerobic tank via a pipeline. The No. 1 aerobic tank is connected to the anoxic tank via a pipeline. The anoxic tank is connected to the No. 2 aerobic tank via a pipeline. The No. 2 aerobic tank is connected to the MBR tank via a pipeline. The MBR tank is connected to the discharge tank via a pipeline. The discharge tank is connected to the industrial wastewater treatment plant via a pipeline. The Parshall metering cell is installed inside the pipeline of the discharge tank. It also includes a storage tank (1) set at the front end of the leachate conditioning tank. The leachate discharged from the storage tank (1) enters the leachate conditioning tank for system treatment. The inner wall of the storage tank (1) is fixedly connected to a second filter screen (15). The second filter screen (15) is located in the middle and lower part of the storage tank (1). Multiple filtrate tanks (16) are fixedly connected to the top of the second filter screen (15). An inclined block (22) is fixedly connected to the top of the filtrate tank (16). A connecting hole (24) is opened inside the filtrate tank (16). Multiple percolation holes (23) are opened on the outer wall of the filtrate tank (16). A fixed box (17) is fixedly connected between the multiple filtrate tanks (16). A discharge component for pushing out waste is set inside the fixed box (17). Below the second filter screen (15) is a discharge assembly for extracting leachate. The discharge assembly includes a mounting plate (21) inside the fixed box (17). The bottom of the mounting plate (21) is slidably connected to the top of the second filter screen (15). Two symmetrically arranged compression springs (18) are fixedly connected between one side of the mounting plate (21) and the inner wall of one side of the fixed box (17). The bottom of the mounting plate (21) is provided with a plurality of first bristles (19) that cooperate with the second filter screen (15). Both sides of the mounting plate (21) are provided with a plurality of second bristles (20). A push rod (12) is fixedly connected to one side of the mounting plate (21). A door panel (3) is hinged to one side of the storage box (1). The push rod (12) cooperates with the door panel (3). A handle (4) is provided on one side of the door panel (3). The top of the storage box (1) has a sliding passage through which a placement box (2) is provided. The bottom of the placement box (2) is provided with a feeding assembly for feeding waste materials. The feeding assembly includes two symmetrically arranged fixed plates (27) fixedly connected to the bottom of the placement box (2). A rotating shaft (28) is rotatably connected to one side of the fixed plate (27). A gear (29) is fixedly sleeved on the outer wall of the rotating shaft (28). A rectangular hole (26) is opened inside the placement box (2). A symmetrically arranged... Two first racks (9) are placed, and the first racks (9) are used in conjunction with rectangular holes (26). Two baffles (25) are symmetrically arranged and slidably connected to the bottom of the placement box (2). A second rack (30) is fixedly connected to one side of the baffle (25). The second rack (30) and the first rack (9) are both meshed with gears (29). A feed inlet (10) is opened at the bottom of the placement box (2). Two first triangular blocks (11) are symmetrically arranged and fixedly connected to the inner wall of the bottom of the placement box (2).

2. The treatment apparatus for hazardous waste landfill leachate according to claim 1, characterized in that, The discharge assembly includes a second triangular block (14) fixedly connected to the inner wall of one side of the storage box (1). Multiple first filters (13) are fixedly connected between the bottom of the second triangular block (14) and the bottom inner wall of the storage box (1). A rectangular plate (8) is fixedly connected to one side of the storage box (1). A reverse osmosis blocking pump (6) is fixedly connected to the top of the rectangular plate (8). The inlet of the reverse osmosis blocking pump (6) is fixedly connected to an inlet pipe (5). One end of the inlet pipe (5) extends into the interior of the storage box (1). The outlet of the reverse osmosis blocking pump (6) is fixedly connected to an outlet pipe (7).

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