Underground water remediation module based on permeation oxidation

Abstract

The utility model discloses a groundwater remediation module based on osmotic oxidation, which belongs to the technical field of environmental remediation and comprises a water-resisting layer, a remediation mechanism is slidably connected to the inner side of the water-resisting layer, and quick release mechanisms are arranged on two sides of the water-resisting layer. The remediation mechanism can be conveniently and independently replaced when the reaction medium zero-valent iron, activated carbon particles and limestone are subjected to performance reduction, failure and the like due to long-time use, the whole remediation module does not need to be disassembled on a large scale, the maintenance cost and difficulty are effectively reduced, continuous and efficient development of underground water remediation work is guaranteed, and the remediation efficiency is improved. When the repair mechanism needs to be integrally overhauled and replaced or parts such as an internal filtering frame need to be deeply maintained, the repair mechanism can be quickly detached from the water-resisting layer through the quick detaching mechanism, so that the time and the labor cost are greatly saved, and the maintainability and the use flexibility of the whole underground water repair module are improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental remediation technology, and in particular to a groundwater remediation module based on permeation oxidation. Background Technology

[0002] With the acceleration of industrialization and urbanization, as well as the widespread development of agricultural activities, groundwater pollution has become increasingly serious. The unreasonable discharge of wastewater containing heavy metals such as mercury, cadmium, chromium, and lead from industrial production processes, as well as organic matter such as petroleum hydrocarbons, polychlorinated biphenyls, and benzene compounds, the leaching of fertilizers and pesticides from agriculture, and urban sewage and landfill leachate can all lead to the deterioration of groundwater quality. As an important water resource, once groundwater is polluted, it will not only affect its safety as a drinking water source, but also damage the ecosystems that depend on it. For example, it will affect soil quality, lead to poor vegetation growth, and even pose a potential threat to human health through the food chain.

[0003] There are few existing groundwater remediation technologies. The main remediation technology is the groundwater seepage interceptor wall. This technology requires a large excavation cross section and a lot of remediation materials. There is a lack of an interceptor structure that can solve the problem of excessive heavy metal content in groundwater.

[0004] Existing patent (publication number: CN214528180U) discloses an interception structure for removing heavy metals from groundwater, comprising multiple permeable interception walls spaced apart. Each permeable interception wall has multiple boreholes, and the boreholes are alternately backfilled with remediation material and waterproof material, typically clay. This utility model belongs to the field of groundwater remediation technology. The purpose of this utility model is to solve the problem of excessive heavy metal content in groundwater in the prior art. The technical effect achieved is as follows: Through the interception structure for removing heavy metals from groundwater of this utility model, a staggered arrangement of boreholes is adopted, and each borehole is alternately backfilled with clay and waterproof material. Based on the movement law of groundwater in different media, the flow path of groundwater is extended, thereby increasing the contact time between groundwater and remediation material and improving the filtration effect.

[0005] Existing patents offer solutions to the above problems, but they lack a structure for quick replacement of the repair module. This means that when it is necessary to update the active materials within the repair module, such as zero-valent iron and microbial carriers, the entire repair module needs to be disassembled, thereby reducing the overall efficiency of groundwater remediation.

[0006] To address this, a groundwater remediation module based on infiltration oxidation is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a groundwater remediation module based on permeation oxidation, which can solve the problem that existing environmental remediation lacks a structure for rapid replacement of the remediation module. As a result, when it is necessary to update the active materials in the remediation module, such as zero-valent iron and microbial carriers, the entire remediation module needs to be disassembled, thereby reducing the overall efficiency of groundwater remediation.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a groundwater remediation module based on permeation oxidation, comprising a waterproof layer, a remediation mechanism slidably connected to the inner side of the waterproof layer, and quick-release mechanisms provided on both sides of the waterproof layer;

[0009] The repair mechanism includes a connecting shell, three filter frames, a connecting groove, a return spring, a retaining bead, a retaining bead groove, a sliding groove, a cover, and pulleys. The connecting shell is slidably connected to the inner side of the waterproof layer, the filter frames are movably connected to the inner side of the connecting shell, the connecting grooves are opened at the bottom of both sides of the filter frames, the return spring is fixedly connected to the inner side of the connecting groove, the retaining bead is fixedly connected to the side of the return spring away from the connecting groove, the retaining bead grooves are opened on both sides of the inner wall of the connecting shell, the sliding grooves are opened on both sides of the top of the connecting shell, the pulleys are fixedly connected to the rear sides of both sides of the cover, the pulleys are slidably connected to the inner side of the sliding groove, and the cover is slidably connected to the top of the connecting shell.

[0010] Preferably, the quick-release mechanism includes a moving groove, a limiting hole, a sliding rod, a limiting rod, and a limiting ring, wherein the moving groove is formed on both sides of the waterproof layer.

[0011] Preferably, the limiting hole is opened at the top of the moving groove, and the slide rod is fixedly connected to the bottom of both sides of the connecting shell.

[0012] Preferably, the limiting rod is fixedly connected to the top of both sides of the connecting shell, the limiting ring is slidably connected to the surface of the limiting rod, and the limiting ring is engaged with the limiting hole.

[0013] Preferably, a fixing ring is fixedly connected to the side of the limiting rod away from the connecting shell, and the surface of the fixing ring is coated with an anti-corrosion coating.

[0014] Preferably, the inner side of the front filter frame is provided with zero-valent iron, the inner side of the filter frame is provided with activated carbon particles, and the inner side of the rear filter frame is provided with limestone.

[0015] Preferably, the surface of the filter frame is provided with a protective filter screen, and the surface of the protective filter screen is coated with an anti-corrosion coating.

[0016] Preferably, the surface of the limiting ring is fitted with a rubber pad, and the surface of the rubber pad is engraved with anti-slip texture.

[0017] Preferably, pull rings are welded to both sides of the top of the filter frame, and the inner wall of the pull rings is engraved with anti-slip texture.

[0018] Preferably, a buffer pad is fixedly connected to the side of the slide rod near the connecting shell, and the buffer pad is made of rubber material.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The remediation mechanism of this application can easily replace the zero-valent iron, activated carbon particles and limestone in the reaction medium when their performance deteriorates or they fail due to long-term use, without having to disassemble the entire remediation module on a large scale. This effectively reduces maintenance costs and difficulty and ensures the continuous and efficient implementation of groundwater remediation work.

[0021] 2. When the repair mechanism of this application needs to be inspected or replaced as a whole, or when the internal filter frame and other components need to be deeply maintained, the repair mechanism can be quickly disassembled from the waterproof layer, which greatly saves time and labor costs and improves the maintainability and flexibility of the entire groundwater remediation module. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the groundwater remediation module based on permeation oxidation of this utility model;

[0023] Figure 2 This is a schematic diagram of the connecting shell of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0026] Figure 5 This is a schematic diagram of the quick-release mechanism of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the rubber pad of this utility model;

[0028] Figure 7 This is a schematic diagram of the filter frame of this utility model.

[0029] In the diagram, 1. Waterproof layer; 2. Repair mechanism; 21. Connecting shell; 22. Filter frame; 23. Connecting groove; 24. Return spring; 25. Clamping bead; 26. Clamping bead groove; 27. Slide groove; 28. Cover; 29. ​​Pulley; 3. Quick release mechanism; 31. Moving groove; 32. Limiting hole; 33. Slide rod; 34. Limiting rod; 35. Limiting ring; 4. Fixing ring; 5. Protective filter screen; 6. Rubber pad; 7. Pull ring; 8. Buffer pad. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-7 The present invention provides the following technical solution:

[0032] A groundwater remediation module based on permeation oxidation includes an impermeable layer 1, a remediation mechanism 2 slidably connected to the inner side of the impermeable layer 1, and quick-release mechanisms 3 on both sides of the impermeable layer 1.

[0033] The repair mechanism 2 includes a connecting shell 21, three filter frames 22, a connecting groove 23, a return spring 24, a retaining bead 25, a retaining bead 25 groove, a sliding groove 27, a cover 28, and a pulley 29. The connecting shell 21 is slidably connected to the inner side of the waterproof layer 1. The filter frames 22 are movably connected to the inner side of the connecting shell 21. The connecting groove 23 is opened at the bottom of both sides of the filter frames 22. The return spring 24 is fixedly connected to the inner side of the connecting groove 23. The retaining bead 25 is fixedly connected to the side of the return spring 24 away from the connecting groove 23. The retaining bead 25 groove is opened on both sides of the inner wall of the connecting shell 21. The sliding groove 27 is opened on both sides of the top of the connecting shell 21. The pulley 29 is fixedly connected to the rear side of both sides of the cover 28. The pulley 29 is slidably connected to the inner side of the sliding groove 27. The cover 28 is slidably connected to the top of the connecting shell 21.

[0034] In this embodiment: by setting a water-proof layer 1, the flow direction of groundwater can be effectively controlled, guiding the polluted groundwater into the remediation mechanism 2 for treatment, while preventing the treated water from flowing out from the side. The connecting shell 21 can support and limit the filter frame 22, the bead 25 slot, the slide groove 27, and the cover 28. Different reaction media can be filled in the three filter frames 22, which enables the treatment of pollutants in groundwater to be carried out in a layered, step-by-step and coordinated manner. The connecting groove 23 provides a fixed position for the reset spring 24, so that the bead 25 can cooperate with the bead 25 slot through the elastic force of the reset spring 24, realizing the movable connection of the filter frame 22 in the connecting shell 21. The reset spring 24 utilizes its own elastic deformation characteristics to allow the bead 25 to be inserted into or ejected from the bead 25 slot under appropriate elastic force, realizing convenient connection and separation between the filter frame 22 and the connecting shell 21. Under the elastic force of the reset spring 24, the bead 25 can be inserted into the slot. The retaining bead 25 grooves on both sides of the inner wall of the connecting shell 21 ensure that the filter frame 22 is firmly fixed inside the connecting shell 21 during normal operation. When it is necessary to disassemble the filter frame 22, it can be dislodged from the retaining bead 25 grooves under the action of external force, which facilitates the removal and replacement of the filter frame 22 by the staff. The retaining bead 25 grooves and retaining beads 25 cooperate to ensure that the filter frame 22 can be accurately installed in the predetermined position. The sliding groove 27 provides a sliding track for the pulleys 29 on both sides of the cover 28, which allows the cover 28 to slide open or close smoothly on the top of the connecting shell 21, which facilitates the operation of the filter frame 22 inside the connecting shell 21 by the staff. The cover 28 prevents external impurities from entering and affecting the repair effect, and also avoids excessive exposure of groundwater and pollutants in it to the external environment, reducing the risk of unnecessary pollution spread. The pulleys 29 make the opening and closing operation of the cover 28 smooth and labor-saving, further improving the convenience of the staff to perform daily inspection and maintenance of the repair mechanism 2.

[0035] Specifically, such as Figure 5 As shown, the quick-release mechanism 3 includes a moving groove 31, a limiting hole 32, a sliding rod 33, a limiting rod 34, and a limiting ring 35. The moving groove 31 is opened on both sides of the waterproof layer 1.

[0036] Specifically, such as Figure 5 As shown, the limiting hole 32 is opened at the top of the moving groove 31, and the slide rod 33 is fixedly connected to the bottom of both sides of the connecting shell 21.

[0037] Specifically, such as Figure 5 As shown, the limiting rod 34 is fixedly connected to the top of both sides of the connecting shell 21, and the limiting ring 35 is slidably connected to the surface of the limiting rod 34. The limiting ring 35 is engaged with the limiting hole 32.

[0038] In this embodiment: the sliding groove 31 provides sliding space for the sliding rods 33 on both sides of the bottom of the connecting shell 21, allowing the connecting shell 21 to move smoothly along the sliding groove 31 during installation and disassembly. The limiting hole 32 works in conjunction with the limiting ring 35. After the connecting shell 21 is slidably connected to the inner side of the waterproof layer 1, the user moves the limiting ring 35 to the inner side of the limiting hole 32. The limiting hole 32 limits the limiting ring 35 to prevent the connecting shell 21 from shaking during operation. The sliding rods 33 allow the repair mechanism 2 to smoothly enter and exit the waterproof layer 1 along a predetermined path, avoiding instability such as deviation or shaking. The limiting rods 3... 4. Ensure that the limiting ring 35 can slide stably on its surface to achieve accurate engagement and disengagement with the limiting hole 32, thereby effectively controlling the position of the repair mechanism 2 within the waterproof layer 1. The limiting ring 35 engages with the limiting hole 32. When installing the repair mechanism 2, simply align the limiting ring 35 with the limiting hole 32 and gently push it in to complete the engagement, quickly fixing the position of the repair mechanism 2. The operation is simple and convenient, greatly saving installation time. When disassembly is required, simply remove the limiting ring 35 from the limiting hole 32 to smoothly remove the repair mechanism 2 from the waterproof layer 1, facilitating maintenance, replacement of reaction media, and other operations of the repair mechanism 2.

[0039] Specifically, such as Figure 6 As shown, a fixing ring 4 is fixedly connected to the side of the limiting rod 34 away from the connecting shell 21, and the surface of the fixing ring 4 is coated with anti-corrosion paint.

[0040] Specifically, such as Figure 7 As shown, zero-valent iron is provided on the inner side of the front filter frame 22, activated carbon particles are provided on the inner side of the filter frame 22, and limestone is provided on the inner side of the rear filter frame 22.

[0041] In this embodiment: by setting a fixing ring 4, the user can prevent the limiting ring 35 from moving excessively and accidentally separating from the limiting rod 34 when moving the limiting ring 35. By setting an anti-corrosion coating, the fixing ring 4 can be effectively prevented from contacting groundwater and any corrosive substances it may contain, thus preventing corrosion and rust. By setting zero-valent iron in the front filter frame 22, zero-valent iron has a strong reducing ability and can effectively treat heavy metal pollutants such as chromium, mercury, and lead in groundwater, as well as some chlorinated organic compounds such as trichloroethylene and tetrachloroethylene, through oxidation-reduction reactions. By setting activated carbon particles in the middle filter frame 22, various organic pollutants in groundwater can be adsorbed, and some heavy metal ions can also be adsorbed and removed. By setting limestone in the rear filter frame 22, the pH of the groundwater can be adjusted through chemical reactions after contact with the groundwater.

[0042] Specifically, such as Figure 7As shown, the surface of the filter frame 22 is provided with a protective filter screen 5, and the surface of the protective filter screen 5 is coated with an anti-corrosion coating.

[0043] Specifically, such as Figure 6 As shown, a rubber pad 6 is fitted on the surface of the limiting ring 35, and the surface of the rubber pad 6 is engraved with anti-slip texture.

[0044] In this embodiment: by setting a protective filter screen 5, large particulate impurities from the outside can be effectively blocked from entering the filter frame 22, preventing these impurities from mixing into the reaction medium and affecting its treatment effect on pollutants. By setting an anti-corrosion coating, the protective filter screen 5 can be protected from the corrosive components in groundwater, extending its service life, reducing the need for frequent replacement due to filter screen damage, and lowering maintenance costs. By setting a rubber pad 6, the tiny gaps between the two can be filled, increasing the tightness of the contact and making the snap-fit ​​more secure. By setting an anti-slip texture, the friction can be increased, making it easier for workers to operate the limiting ring 35 when installing and disassembling the repair mechanism 2, and making it easier to accurately push the limiting ring 35 into or pull it out of the limiting hole 32.

[0045] Specifically, such as Figure 7 As shown, pull rings 7 are welded to both sides of the top of the filter frame 22, and the inner wall of the pull rings 7 is engraved with anti-slip texture.

[0046] Specifically, such as Figure 2 As shown, a buffer pad 8 is fixedly connected to the side of the slide rod 33 near the connecting shell 21. The buffer pad 8 is made of rubber material.

[0047] In this embodiment: By setting the pull ring 7, a convenient gripping point is provided for the staff. The staff can easily take the filter frame 22 out of or into the connecting shell 21 by holding the pull ring 7. By setting the anti-slip texture, the friction between the hand and the pull ring 7 is increased, so that even when operating in a humid underground environment, the hand can be firmly gripped and it is not easy to slip. By setting the buffer pad 8, when the slide rod 33 slides along the moving groove 31 on both sides of the waterproof layer 1 and comes into contact with the waterproof layer 1, the buffer pad 8 can effectively absorb and disperse the impact force generated by the collision due to the good elasticity and buffering performance of the rubber material. By setting the buffer pad 8 to be made of rubber material, it has excellent elastic deformation ability, which reduces the damage caused by the impact force to the slide rod 33 and the corresponding contact parts of the waterproof layer 1, and avoids the occurrence of scratches, dents or even structural deformation.

[0048] Working principle: When groundwater remediation work is required, the user selects the placement position of the impermeable layer 1 according to the actual groundwater flow direction on site, ensuring it aligns with the flow direction. After the impermeable layer 1 is installed, the user aligns the sliding rod 33 with the moving groove 31 and then smoothly pushes the connecting shell 21 along the moving groove 31 until it successfully reaches the pre-planned position inside the impermeable layer 1. After the connecting shell 21 slides into place, the user pushes the limiting ring 35 into the inside of the limiting hole 32, causing the two to engage. At this point, the installation between the connecting shell 21 and the impermeable layer 1 is complete. Then, the user slides the cover 28 to move it along... With the slide 27 opened, the three filter frames 22, originally placed inside the connecting shell 21, are removed one by one. Then, the corresponding reaction media are filled into the inner sides of the front, middle, and rear filter frames 22 respectively. After filling with the reaction media, the user places the filter frames 22 back into the connecting shell 21. When the filter frames 22 are pushed into the connecting shell 21, the retaining beads 25 in the bottom connecting grooves 23 on both sides of the filter frames 22 will press against the inner wall of the connecting shell 21. During this process, the retaining beads 25 are pushed into the connecting grooves 23 by the pressure of the connecting shell 21, simultaneously pressing the return spring 24, causing it to elastically deform and move towards the connecting... As the inner side of the groove 23 contracts, and the filter frame 22 continues to move, when the retaining bead 25 aligns with the retaining bead 25 grooves on both sides of the inner wall of the connecting shell 21, the squeezing force on the retaining bead 25 from the connecting shell 21 disappears. At this time, the return spring 24, relying on its stored elastic potential energy, quickly pushes the retaining bead 25 outwards from the filter frame 22, allowing it to accurately engage in the retaining bead 25 groove. The user completes the installation of the three filter frames 22 in sequence. After installation, the contaminated groundwater, under the action of the natural hydraulic gradient, flows orderly into the repair mechanism 2 along the waterproof layer 1. The repair mechanism 2 repairs the groundwater. After the repair mechanism 2 has been running for a long time... If the reaction medium needs to be replaced or maintenance work is required after use, the user only needs to slide the cover 28 again to open it, apply a certain external force to the filter frame 22 that needs to be treated, overcome the elasticity of the return spring 24, and make the retaining bead 25 disengage from the retaining bead 25 groove. Then the filter frame 22 can be taken out from the connecting shell 21, and the reaction medium in the filter frame 22 can be replaced or maintained accordingly. After the relevant work is completed, the filter frame 22 is put back into the connecting shell 21 according to the previous installation steps, and the repair mechanism 2 can continue to be put into the groundwater remediation work, continuously ensuring the smooth progress of the groundwater remediation work.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A permeate oxidation based groundwater remediation module comprising an aquiclude (1), characterized in that: The inner side of the water barrier layer (1) is slidably connected with a repairing mechanism (2), and the two sides of the water barrier layer (1) are provided with quick release mechanisms (3). The repairing mechanism (2) comprises a connecting shell (21), three filter frames (22), a connecting groove (23), a reset spring (24), a clamping bead (25), a clamping bead groove (26), a sliding groove (27), a cover (28) and a pulley (29), the connecting shell (21) is slidably connected to the inner side of the water barrier layer (1), the filter frame (22) is movably connected to the inner side of the connecting shell (21), the connecting groove (23) is formed in the bottom of the two sides of the filter frame (22), the reset spring (24) is fixedly connected to the inner side of the connecting groove (23), the clamping bead (25) is fixedly connected to the side of the reset spring (24) away from the connecting groove (23), the clamping bead groove (26) is formed in the inner wall of the connecting shell (21) on the two sides, the sliding groove (27) is formed in the top of the connecting shell (21) on the two sides, the pulley (29) is fixedly connected to the rear side of the cover (28) on the two sides, the pulley (29) is slidably connected to the inner side of the sliding groove (27), and the cover (28) is slidably connected to the top of the connecting shell (21).

2. A permeate oxidation based groundwater remediation module according to claim 1, characterized in that: The quick release mechanism (3) comprises a moving groove (31), a limiting hole (32), a sliding rod (33), a limiting rod (34) and a limiting ring (35), and the moving groove (31) is formed in the two sides of the water barrier layer (1).

3. A permeoxygenation-based groundwater remediation module according to claim 2, characterized in that: The limiting hole (32) is formed in the top of the moving groove (31), and the sliding rod (33) is fixedly connected to the bottom of the connecting shell (21) on the two sides.

4. A permeoxygenation-based groundwater remediation module according to claim 2, characterized in that: The limiting rod (34) is fixedly connected to the top of the connecting shell (21) on the two sides, the limiting ring (35) is slidably connected to the surface of the limiting rod (34), and the limiting ring (35) is matched and clamped with the limiting hole (32).

5. A permeoxygenation-based groundwater remediation module according to claim 2, characterized in that: The side of the limiting rod (34) away from the connecting shell (21) is fixedly connected with a fixed ring (4), and the surface of the fixed ring (4) is coated with anticorrosive paint.

6. A permeation oxidation based groundwater remediation module according to claim 1, characterized in that: The inner side of the front filter frame (22) is provided with zero-valent iron, the inner side of the filter frame (22) is provided with activated carbon particles, and the inner side of the rear filter frame (22) is provided with limestone.

7. A permeation oxidation based groundwater remediation module as claimed in claim 1, wherein: The surface of the filter frame (22) is provided with a protective filter screen (5), and the surface of the protective filter screen (5) is coated with anticorrosive paint.

8. A permeation oxidation based groundwater remediation module according to claim 2, characterized in that: The surface of the limiting ring (35) is provided with a rubber pad (6), and the surface of the rubber pad (6) is marked with anti-skid lines.

9. A permeoxygenation-based groundwater remediation module according to claim 1, characterized in that: Pull rings (7) are welded to the top of the filter frame (22) on the two sides, and the inner wall of the pull ring (7) is marked with anti-skid lines.

10. A permeation oxidation based groundwater remediation module as claimed in claim 2, wherein: The side of the sliding rod (33) close to the connecting shell (21) is fixedly connected with a buffer pad (8), and the buffer pad (8) is made of rubber material.

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