A groundwater in-situ remediation treatment system for a landfill

Abstract

This invention discloses an in-situ groundwater remediation system for landfills, comprising a fixed frame, a fixed pipe fixed inside the fixed frame, multiple dispensing pipes fixed to the outer wall of the fixed pipe, the bottom end of the dispensing pipes being fixedly connected to the lower inner surface of the fixed frame, multiple dispensing holes formed on the outer wall of the dispensing pipes, two connecting pipes fixed to the outer wall of the fixed pipes, a suction pipe fixed to the other end of the connecting pipes, and a guide pipe fixed to the other end of the suction pipe. This in-situ groundwater remediation system for landfills uses L-shaped plates and bolts and nuts to connect multiple fixed frames, allowing all underground river water to flow through the fixed frames. The chemical solution enters the guide pipe from the inlet pipe, then flows into the suction pipe, connecting pipe, and fixed pipe, and finally exits through the dispensing holes from the dispensing pipe. This ensures sufficient contact between the groundwater and the chemical solution, resulting in more comprehensive remediation.

Description

Technical Field

[0001] This invention relates to the field of groundwater remediation technology, specifically to an in-situ groundwater remediation and treatment system for landfills. Background Technology

[0002] Landfill leachate mainly originates from precipitation and the water contained within the waste itself. It is a complex, high-concentration organic wastewater that inevitably pollutes groundwater when it seeps into the ground. Therefore, it is necessary to remediate the groundwater at landfill sites to reduce water pollution at its source.

[0003] A search revealed an existing patent (publication number: CN117049687A) that discloses an in-situ groundwater remediation system for landfills. This system includes a chemical release mechanism comprising an impeller, a piston cylinder, a piston rod, and a connecting rod. The piston rod is mounted on the piston cylinder and is rotatable around its own axis and movable along its own axis. A piston plate is mounted on the piston rod. The piston cylinder has an inlet and an outlet. When the piston rod drives the piston plate to reciprocate along its own axis, the chemical enters through the inlet and exits through the outlet. The impeller's rotation under the influence of water flow drives the piston rod to reciprocate along its own axis and rotate around its own axis. This causes the piston plate, driven by the piston rod, to draw the chemical into the inlet chamber and then spray it out. The faster the water flow, the faster the impeller rotates, and the faster the piston plate moves, resulting in a larger amount of chemical sprayed. This ensures that the amount of chemical sprayed is matched to the water flow rate, preventing insufficient chemical addition due to excessively high water flow.

[0004] Its piston moves with the piston plate to perform the functions of suction and discharge of pesticides. However, it has shortcomings. There is no sealing mechanism for the inlet and outlet of the pesticide. As a result, groundwater is also drawn in at the outlet when the pesticide is being suctioned, which leads to a decrease in the amount of pesticide absorbed. When the pesticide is discharged, the mixture of groundwater and pesticide is also pushed into the inlet, which further reduces the amount of pesticide entering the water flow and affects the treatment of groundwater. In addition, it is only inserted into the ground, and there are wide areas of groundwater, so it can only treat a part of the groundwater, and the treatment is incomplete. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an in-situ groundwater remediation system for landfills, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an in-situ groundwater remediation system for landfills, comprising a fixed frame, a fixed pipe fixed inside the fixed frame, multiple dispensing pipes fixed to the outer wall of the fixed pipe, the bottom end of the dispensing pipes being fixedly connected to the lower inner surface of the fixed frame, multiple dispensing holes formed on the outer wall of the dispensing pipes, two connecting pipes fixed to the outer wall of the fixed pipes, a suction pipe fixed to the other end of the connecting pipes, a guide pipe fixed to the other end of the suction pipe, an inlet pipe at the top of the guide pipe, a sealing cylinder screwed into the lower inner part of the guide pipe, a rotating rod fixed to the inner side wall of the sealing cylinder, L-shaped plates fixed at the four corners of the front and rear surfaces of the fixed frame, fixing holes formed on the left side and top of the L-shaped plates, flange connection mechanisms integrally formed at the top and bottom of the guide pipe and the bottom of the inlet pipe, and a fixed connection between the top of the guide pipe and the bottom of the inlet pipe by multiple bolts and nuts.

[0007] Preferably, a drug-drawing mechanism is provided in front of the fixed frame. The drug-drawing mechanism includes a crankshaft, with multiple blades fixed to the outer wall of the crankshaft. Two connecting rods are rotatably connected to the outer wall of the crankshaft. A connecting rod is rotatably connected to the other end of the connecting rod. A piston is fixed to the other end of the connecting rod. The outer wall of the piston is slidably connected to the inner wall of the drug-drawing tube. Two fixed plates are rotatably connected to the outer wall of the crankshaft. The other end of the fixed plates is fixedly connected to the front surface of the fixed frame.

[0008] Preferably, the inside of the suction tube is provided with an anti-discharge mechanism, which includes an anti-discharge fixing ring. The outer side wall of the anti-discharge fixing ring is fixedly connected to the inner side wall of the suction tube. An anti-discharge spring is fixed to the rear surface of the anti-discharge fixing ring. An anti-discharge sealing plate is fixed to the other end of the anti-discharge spring. An anti-discharge sealing ring is fixed inside the suction tube behind the anti-discharge sealing plate.

[0009] Preferably, the connecting pipe is provided with a water-proof mechanism, which includes a water-proof fixing ring. The outer wall of the water-proof fixing ring is fixedly connected to the inner wall of the connecting pipe. A water-proof spring is fixed to one end of the water-proof fixing ring near the suction tube. A water-proof sealing plate is fixed to the other end of the water-proof spring. A water-proof sealing ring is provided on the side of the water-proof sealing plate away from the water-proof spring. The outer wall of the water-proof sealing ring is fixedly connected to the inner wall of the connecting pipe.

[0010] Preferably, the front surface of the anti-drug-out fixing ring and the left side of the anti-water-ingress fixing ring are respectively provided with multiple through holes extending from front to back and from left to right.

[0011] Preferably, a fixing rod is fixed between the two fixing plates, and a reinforcing plate is fixed to the outer wall of the drug delivery tube. The rear end of the reinforcing plate is fixedly connected to the front surface of the fixing rod.

[0012] Preferably, the right end of the crankshaft has a receiving hole, a compression spring is fixed inside the receiving hole, and a plug is fixed at the other end of the compression spring. The left side of the crankshaft has a plug hole.

[0013] Preferably, a circular shell is rotatably connected to the outer wall of the crankshaft, a limit rod is fixed to the outer wall of the circular shell, the other end of the limit rod is fixedly connected to the fixed frame, and the blade is located inside the circular shell. Beneficial effects

[0014] This invention provides an in-situ groundwater remediation system for landfills. Compared with existing technologies, it has the following advantages:

[0015] 1. The in-situ groundwater remediation system of this landfill uses fixed frames, L-shaped plates, fixed pipes, connecting pipes, suction pipes, and discharge pipes. Based on the width and depth of the underground river, multiple fixed frames are spliced ​​together using L-shaped plates and bolts and nuts, allowing all the water in the underground river to flow through the fixed frames. In this way, the chemical solution enters the guide pipe from the inlet pipe, then enters the suction pipe, connecting pipe, and fixed pipe, and finally enters the discharge pipe and is discharged from the discharge hole. This allows the groundwater to fully contact the chemical solution, resulting in a more comprehensive remediation.

[0016] 2. The in-situ groundwater remediation system of this landfill utilizes a chemical extraction mechanism, a chemical discharge prevention mechanism, and a water ingress prevention mechanism. Water flow drives the blades and crankshaft to rotate. The crankshaft pulls the connecting rod, which in turn pulls the connecting rod and piston. The piston moves downwards, creating negative pressure inside the suction pipe, which draws out the chemical discharge prevention sealing plate. This creates negative pressure inside the guide pipe and inlet pipe, allowing them to draw in the chemical solution. The solution then enters the suction pipe. When the piston moves upwards, it pushes the solution inside the suction pipe upwards, allowing it to enter the connecting pipe. This automatic chemical extraction mechanism ensures efficient chemical absorption.

[0017] 3. The in-situ groundwater remediation system of this landfill uses insert blocks. After horizontal devices are connected together, the insert blocks are inserted into the crankshaft insertion hole of another device. This allows multiple crankshafts to rotate simultaneously. In some areas where the water flow is slow, the blades and crankshafts rotate slowly, resulting in slower absorption and discharge of the chemical solution. In areas with rapid water flow, the blades and crankshafts rotate faster. This allows the faster-rotating crankshafts to drive the slower-rotating ones, thus increasing the speed of the slower-rotating crankshafts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a cross-sectional view of the drug delivery tube and drug suction tube in this invention;

[0020] Figure 3 This is a cross-sectional view of the connecting pipe in this invention;

[0021] Figure 4 This is a cross-sectional view of the crankshaft in this invention.

[0022] Figure 5 This is a schematic diagram of the fixed frame structure in this invention;

[0023] Figure 6 This is a schematic diagram of the circular shell structure viewed from below in this invention.

[0024] In the diagram: 1. Fixing hole; 2. Drug extraction mechanism; 201. Crankshaft; 202. Blade; 203. Connecting rod; 204. Connecting rod; 205. Piston; 3. Circular shell; 4. Anti-discharge mechanism; 401. Anti-discharge fixing ring; 402. Anti-discharge spring; 403. Anti-discharge sealing plate; 404. Anti-discharge sealing ring; 5. Water ingress prevention mechanism; 501. Water ingress fixing ring; 502. Water ingress spring; 503. Water ingress sealing plate; 504. 1. Water-proof sealing ring; 6. Flange connection mechanism; 7. L-shaped plate; 8. Discharge pipe; 9. Discharge hole; 10. Fixing plate; 11. Reinforcing plate; 12. Fixing rod; 13. Suction pipe; 14. Connecting pipe; 15. Limiting rod; 16. Fixing frame; 17. Fixing pipe; 18. Inlet pipe; 19. Rotating rod; 20. Sealing cylinder; 21. Insertion block; 22. Leakage hole; 23. Compression spring; 24. Storage hole; 25. Insertion hole; 26. Drug guide tube. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-6This invention provides a technical solution: an in-situ groundwater remediation system for landfills, comprising a fixed frame 16, a fixed pipe 17 fixed inside the fixed frame 16, multiple drug outlet pipes 8 fixed to the outer wall of the fixed pipe 17, the bottom end of the drug outlet pipe 8 fixedly connected to the lower inner surface of the fixed frame 16, multiple drug outlet holes 9 opened on the outer wall of the drug outlet pipe 8, two connecting pipes 14 fixed to the outer wall of the fixed pipe 17, a suction pipe 13 fixed to the other end of the connecting pipe 14, a guide pipe 26 fixed to the other end of the suction pipe 13, a drug inlet pipe 18 provided at the top of the guide pipe 26, and a sealing cylinder 20 screwed into the lower inner part of the guide pipe 26, the inner wall of the sealing cylinder 20 being fixed... The device is equipped with a rotating rod 19. L-shaped plates 7 are fixed at the four corners of the front and rear surfaces of the fixed frame 16. Fixing holes 1 are opened on the left side and top of the L-shaped plates 7. The top and bottom of the drug guide tube 26 and the bottom of the drug inlet tube 18 are integrally formed with flange connection mechanisms 6. The top of the drug guide tube 26 and the bottom of the drug inlet tube 18 are fixedly connected by multiple bolts and nuts. This allows the water to completely pass through the device, so that the water and the drug solution can fully contact each other and achieve complete treatment. A fixing rod 12 is fixed between the two fixing plates 10. A reinforcing plate 11 is fixed on the outer wall of the drug guide tube 26. The rear end of the reinforcing plate 11 is fixedly connected to the front surface of the fixing rod 12. This can improve the stability of the drug guide tube 26.

[0027] Furthermore, a drug extraction mechanism 2 is provided in front of the fixed frame 16. The drug extraction mechanism 2 includes a crankshaft 201, with multiple blades 202 fixed to the outer wall of the crankshaft 201. Two connecting rods 203 are rotatably connected to the outer wall of the crankshaft 201, and a connecting rod 204 is rotatably connected to the other end of the connecting rods 203. A piston 205 is fixed to the other end of the connecting rod 204. The outer wall of the piston 205 is slidably connected to the inner wall of the drug suction tube 13. Two fixed plates 10 are rotatably connected to the outer wall of the crankshaft 201, and the other end of the fixed plates 10 is fixedly connected to the front surface of the fixed frame 16. This allows for automatic extraction of the drug liquid. An anti-discharge mechanism 4 is provided inside the drug suction tube 13. The anti-discharge mechanism 4 includes an anti-discharge fixing ring 401, with the outer wall of the anti-discharge fixing ring 401 fixedly connected to the inner wall of the drug suction tube 13. An anti-discharge spring 402 is fixed to the rear surface of the anti-discharge fixing ring 401, and an anti-discharge sealing plate 403 is fixed to the other end of the anti-discharge spring 402. Inside the suction tube 13, behind the anti-discharge sealing plate 403, an anti-discharge sealing ring 404 is fixed to prevent the liquid from flowing back into the guide tube 26 when the liquid is pushed. The connecting tube 14 is equipped with an anti-water ingress mechanism 5, which includes an anti-water ingress fixing ring 501. The outer wall of the anti-water ingress fixing ring 501 is fixedly connected to the inner wall of the connecting tube 14. An anti-water ingress spring 502 is fixed to the end of the anti-water ingress fixing ring 501 near the suction tube 13. The other end of the anti-water ingress spring 502 is fixed with an anti-water ingress sealing plate 503. The anti-water ingress sealing plate 503 is provided with an anti-water ingress sealing ring 504 on the side away from the anti-water ingress spring 502. The outer side wall of the anti-water ingress sealing ring 504 is fixedly connected to the inner side wall of the connecting pipe 14 to prevent the absorption of groundwater. The front surface of the anti-drug fixing ring 401 and the left side of the anti-water ingress fixing ring 501 are respectively provided with multiple through holes 22 that pass through from front to back and from left to right, so that the medicine can pass through.

[0028] Furthermore, a receiving hole 24 is provided at the right end of the crankshaft 201, and a compression spring 23 is fixed inside the receiving hole 24. An insert block 21 is fixed at the other end of the compression spring 23. An insertion hole 25 is provided on the left side of the crankshaft 201, so that multiple crankshafts 201 can rotate synchronously. A circular shell 3 is rotatably connected to the outer wall of the crankshaft 201. A limit rod 15 is fixed to the outer wall of the circular shell 3. The other end of the limit rod 15 is fixedly connected to the fixing frame 16. The blade 202 is located inside the circular shell 3, so that all blades 202 and crankshaft 201 rotate in the same direction.

[0029] During operation, multiple fixed frames 16 are spliced ​​together using L-shaped plates 7 and bolts and nuts, according to the width and depth of the underground river. Simultaneously, insert blocks 21 are inserted into the insertion holes 25. The lowest drug delivery tube 26 is sealed with a sealing cylinder 20. The top of the upper drug delivery tube 26 is connected to the inlet tube 18, and the other end of the inlet tube 18 is inserted into the liquid medicine. The water flow causes the blades 202 and crankshaft 201 to rotate. The crankshaft 201 pulls the connecting rod 203, which in turn pulls the connecting rod 204 and piston 205. The piston 205 moves downwards, creating a negative pressure inside the suction tube 13, which draws in the anti-outflow sealing plate 403. This creates a negative pressure inside the drug delivery tube 26 and the inlet tube 18, allowing the inlet tube 18 and drug delivery tube 26 to draw in the liquid medicine, which then enters the suction tube 13. Simultaneously, the negative pressure draws in the anti-inflow sealing plate 503, preventing water from entering. The discharge pipe 8 draws in groundwater. When the piston 205 moves upward, it pushes the liquid medicine inside the suction pipe 13 upward, strongly pushing the anti-discharge sealing plate 403 to prevent the liquid medicine from entering the guide pipe 26. At the same time, it strongly pushes the anti-water ingress sealing plate 503, so that the liquid medicine enters the interior of the connecting pipe 14 and the fixed pipe 17, and finally enters the discharge pipe 8 and is discharged from the discharge hole 9 to treat the water flow. This allows all the water flow to pass through the device, so that the groundwater can fully contact the liquid medicine, and the treatment is more comprehensive. At the same time, it can automatically draw in and discharge the liquid medicine. In some places, the water flow is slow and the blade 202 and crankshaft 201 rotate slowly, so the liquid medicine is drawn in and discharged slowly. In places where the water flow is rapid, the blade 202 and crankshaft 201 rotate faster. In this way, the faster crankshaft 201 can drive the other crankshafts 201 to rotate through the insert block 21, thus increasing the speed of the slower crankshaft 201.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A groundwater in-situ remediation system for landfills, comprising a fixed frame (16), characterized in that: A fixing tube (17) is fixed inside the fixing frame (16). Multiple medicine outlet tubes (8) are fixed to the outer wall of the fixing tube (17). The bottom end of the medicine outlet tube (8) is fixedly connected to the lower inner surface of the fixing frame (16). Multiple medicine outlet holes (9) are opened on the outer wall of the medicine outlet tube (8). Two connecting tubes (14) are fixed to the outer wall of the fixing tube (17). A suction tube (13) is fixed to the other end of the connecting tube (14). A guide tube (26) is fixed to the other end of the suction tube (13). The top of the guide tube (26) is provided with The drug inlet tube (18) has a sealing cylinder (20) screwed into the lower part of the drug guide tube (26). A rotating rod (19) is fixed to the inner side wall of the sealing cylinder (20). L-shaped plates (7) are fixed to the four corners of the front and rear surfaces of the fixing frame (16). Fixing holes (1) are opened on the left side and top of the L-shaped plate (7). The top and bottom of the drug guide tube (26) and the bottom of the drug inlet tube (18) are integrally formed with flange connection mechanism (6). The top of the drug guide tube (26) and the bottom of the drug inlet tube (18) are fixedly connected by multiple bolts and nuts. A drug-drawing mechanism (2) is provided in front of the fixed frame (16). The drug-drawing mechanism (2) includes a crankshaft (201). Multiple blades (202) are fixed on the outer wall of the crankshaft (201). Two connecting rods (203) are rotatably connected to the outer wall of the crankshaft (201). A connecting rod (204) is rotatably connected to the other end of the connecting rod (203). A piston (205) is fixed to the other end of the connecting rod (204). The outer wall of the piston (205) is slidably connected to the inner wall of the drug-drawing tube (13). Two fixed plates (10) are rotatably connected to the outer wall of the crankshaft (201). The other end of the fixed plate (10) is fixedly connected to the front surface of the fixed frame (16). The inside of the suction tube (13) is provided with an anti-discharge mechanism (4). The anti-discharge mechanism (4) includes an anti-discharge fixing ring (401). The outer side wall of the anti-discharge fixing ring (401) is fixedly connected to the inner side wall of the suction tube (13). An anti-discharge spring (402) is fixed on the rear surface of the anti-discharge fixing ring (401). An anti-discharge sealing plate (403) is fixed at the other end of the anti-discharge spring (402). An anti-discharge sealing ring (404) is fixed inside the suction tube (13) behind the anti-discharge sealing plate (403). The connecting pipe (14) is provided with a water-proof mechanism (5). The water-proof mechanism (5) includes a water-proof fixing ring (501). The outer side wall of the water-proof fixing ring (501) is fixedly connected to the inner side wall of the connecting pipe (14). A water-proof spring (502) is fixed at one end of the water-proof fixing ring (501) near the suction tube (13). A water-proof sealing plate (503) is fixed at the other end of the water-proof spring (502). A water-proof sealing ring (504) is provided on the side of the water-proof sealing plate (503) away from the water-proof spring (502). The outer side wall of the water-proof sealing ring (504) is fixedly connected to the inner side wall of the connecting pipe (14).

2. The in-situ groundwater remediation system for landfills according to claim 1, characterized in that: The front surface of the anti-drug-out fixing ring (401) and the left side of the anti-water-ingress fixing ring (501) are respectively provided with multiple through holes (22) that penetrate from front to back and from left to right.

3. The in-situ groundwater remediation system for landfills according to claim 1, characterized in that: A fixing rod (12) is fixed between the two fixing plates (10), and a reinforcing plate (11) is fixed to the outer wall of the drug delivery tube (26). The rear end of the reinforcing plate (11) is fixedly connected to the front surface of the fixing rod (12).

4. The in-situ groundwater remediation system for landfills according to claim 1, characterized in that: The crankshaft (201) has a storage hole (24) on the right end, and a compression spring (23) is fixed inside the storage hole (24). The other end of the compression spring (23) is fixed with a plug (21). The crankshaft (201) has a plug hole (25) on the left side.

5. The in-situ groundwater remediation system for landfills according to claim 4, characterized in that: The crankshaft (201) is rotatably connected to a circular shell (3), and a limiting rod (15) is fixed to the outer wall of the circular shell (3). The other end of the limiting rod (15) is fixedly connected to the fixing frame (16), and the blade (202) is located inside the circular shell (3).

Images