Solid waste landfill leakage detection structure

Abstract

The utility model relates to the technical field of landfill leakage detection, and discloses a solid waste landfill leakage detection structure which comprises a filter frame, a plurality of supporting blocks are fixedly connected in the filter frame, geotechnical cloth is fixedly connected to the bottoms of the supporting blocks, a geosynthetic clay liner is fixedly connected to the bottom of the geotechnical cloth, and a geosynthetic clay liner is fixedly connected to the bottom of the geosynthetic clay liner. A conductive layer is fixedly connected to the bottom of the geosynthetic clay liner, conductive fibers are arranged in the conductive layer, terminal resistors are fixedly connected to the front side and the rear side of the conductive layer, wires are fixedly connected to the far sides of the two terminal resistors, and a water collecting assembly used for collecting leakage liquid is arranged at the bottom of the conductive layer. According to the utility model, not only is the speed of leakage detection accelerated, but also the accuracy of leakage point positioning is greatly improved, and accurate leakage point positioning is beneficial to pertinently solving problems and avoiding wide excavation operation, so that the repair cost is saved, and the secondary damage to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of landfill leakage detection, in particular to a leakage detection structure for solid waste landfills. Background Technique

[0002] The leakage detection structure of a solid waste landfill is a comprehensive technical system designed to monitor and manage possible liquid leakage in the landfill to protect groundwater and the surrounding environment from pollution. This structure usually consists of multiple layers of anti-seepage materials, such as high-density polyethylene membranes, supplemented by a leakage detection network, including sensors and monitoring instruments installed in key areas. These sensors can capture subtle changes when leakage occurs and transmit the monitoring data to the control center in real time through a data acquisition system. The control center is equipped with an early warning system, which can immediately initiate emergency measures, such as leakage location, pollution prevention and control, and repair work, once leakage is detected.

[0003] However, some existing leakage detection structures for solid waste landfills usually adopt manual regular inspections. During the inspection process, it is necessary to hold a detector and conduct inspections in different areas. Such inspections are not only time-consuming and laborious, but also have insufficient detection accuracy and are not timely and accurate enough. Therefore, in view of the above deficiencies, a leakage detection structure for solid waste landfills is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a leakage detection structure for solid waste landfills, aiming to improve the problems of inaccurate detection accuracy and untimely detection in some existing leakage detection structures for solid waste landfills.

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

[0006] A leakage detection structure for a solid waste landfill, including a filter frame. A plurality of support blocks are fixedly connected inside the filter frame. A geotextile is fixedly connected to the bottom of the support blocks. A bentonite waterproof blanket is fixedly connected to the bottom of the geotextile. A conductive layer is fixedly connected to the bottom of the bentonite waterproof blanket. Conductive fibers are arranged inside the conductive layer. Terminal resistors are fixedly connected to both the front and back sides of the conductive layer. Wires are fixedly connected to the far sides of the two terminal resistors. A water collection component for collecting leakage liquid is arranged at the bottom of the conductive layer;

[0007] As a further description of the above technical solution:

[0008] The water collection component includes a support plate. The top of the support plate is fixedly connected to the bottom of the conductive layer. A plurality of water guide pipes are fixedly connected inside the support plate. Collection pipes are fixedly connected to both the left and right sides of the support plate. Water guide grooves are opened inside the two collection pipes;

[0009] As a further description of the above technical solution:

[0010] A plurality of holes are formed inside the filter box, and the support block is in the shape of a frustum of a cone for supporting solid waste;

[0011] As a further description of the above technical solution:

[0012] The geotextile is made of polyester material, and the bentonite waterproof blanket is made of natural sodium-based bentonite material;

[0013] As a further description of the above technical solution:

[0014] The outside of the bentonite waterproof blanket is fixedly connected to the adjacent sides of the two terminal resistors, and a transmission line method detector is connected to the outside of the wire;

[0015] As a further description of the above technical solution:

[0016] The outside of the water guide pipe is fixedly connected to the adjacent side of the terminal resistor;

[0017] As a further description of the above technical solution:

[0018] The outside of the support plate is fixedly connected to the inside of the two water guide grooves respectively, and the inside of the collection pipe is used to store the leakage liquid.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, through the conductive fibers embedded in the conductive layer, the change of resistance can be immediately sensed when leakage occurs. This immediate feedback mechanism greatly improves the detection efficiency, allows timely measures to prevent further environmental pollution. The combined use of conductive fibers and terminal resistors not only speeds up the leakage detection speed but also greatly improves the accuracy of locating the leakage point. Accurate leakage point location helps to solve problems targeted, avoid extensive excavation operations, thus saving repair costs and reducing secondary damage to the environment.

[0021] 2. In the utility model, through the design of the water collection component, not only can the leakage liquid be effectively collected, but also the inclined water guide pipe promotes the flow and concentration of the leakage liquid, ensuring that the leakage liquid will not spread randomly. This helps to limit the lateral diffusion of pollutants, control them in a smaller area, and facilitate subsequent collection, treatment and environmental restoration work. Description of the Drawings

[0022] Figure 1 It is a three-dimensional view of the leakage detection structure of the solid waste landfill proposed by the utility model;

[0023] Figure 2 Schematic diagram of the geotextile structure of the leakage detection structure of the solid waste landfill proposed by the present utility model;

[0024] Figure 3 Schematic diagram of the wire fiber structure of the leakage detection structure of the solid waste landfill proposed by the present utility model;

[0025] Figure 4 is Figure 3 Enlarged view of part A in

[0026] Legend:

[0027] 1. Filter box; 2. Support block; 3. Geotextile; 4. Bentonite waterproof blanket; 5. Conductive layer; 6. Conductive fiber; 7. Terminal resistance; 8. Wire; 9. Support plate; 10. Drain pipe; 11. Collection pipe; 12. Drainage trough. Specific implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a leakage detection structure for a solid waste landfill, including a filter frame 1. A plurality of holes are provided inside the filter frame 1. A plurality of support blocks 2 are fixedly connected inside the filter frame 1. The shape of the support block 2 is frustum-shaped, used to support solid waste. The support block 2 helps to disperse the weight of the solid waste from above, reducing the local pressure on the geotextile 3 and the bentonite waterproof blanket 4. The bottom of the support block 2 is fixedly connected with a geotextile 3. The material of the geotextile 3 is polyester material. The geotextile 3 made of polyester material has excellent durability and tensile strength. The main function of the geotextile 3 is to protect the bentonite waterproof blanket 4 from the direct impact of solid waste, prevent the bentonite waterproof blanket 4 from being pierced by sharp objects, and at the same time help to disperse the water flow, making the water pass through more evenly and be absorbed by the underlying bentonite waterproof blanket 4. The bottom of the geotextile 3 is fixedly connected with a bentonite waterproof blanket 4. The material of the bentonite waterproof blanket 4 is natural sodium-based bentonite material. The bentonite waterproof blanket 4 made of natural sodium-based bentonite material can rapidly expand when contacting water, forming a highly effective waterproof layer. This characteristic makes the bentonite waterproof blanket 4 a key barrier to prevent liquid penetration. The bottom of the bentonite waterproof blanket 4 is fixedly connected with a conductive layer 5. Conductive fibers 6 are arranged inside the conductive layer 5. The conductive fibers 6 are embedded inside the conductive layer 5. These conductive fibers 6 can sense the liquid leakage from the bentonite waterproof blanket 4. Once the leachate contacts these fibers, the resistance of the system will change. This change can be used to accurately detect and locate the position of the leakage. Terminal resistors 7 are fixedly connected to both the front and rear sides of the conductive layer 5. The outside of the bentonite waterproof blanket 4 is fixedly connected to the adjacent side of the two terminal resistors 7. Wires 8 are fixedly connected to the opposite sides of the two terminal resistors 7. The terminal resistor 7 is also connected to the wire 8, transmitting the signal to an external detection device to realize real-time monitoring of the leakage situation. The outside of the wire 8 is connected with a transmission line method detector. A water collection component for collecting the leakage liquid is arranged at the bottom of the conductive layer 5.

[0030] Referring to Figure 2 - Figure 4 , the water collection component includes a support plate 9. The top of the support plate 9 is fixedly connected to the bottom of the conductive layer 5. A plurality of water conduits 10 are fixedly connected inside the support plate 9. The outside of the water conduits 10 is fixedly connected to the adjacent side of the terminal resistor 7. Here, the water conduits 10 are designed to be placed at an inclination of five degrees to ensure the flow and collection of the leakage liquid. Collection pipes 11 are fixedly connected to both the left and right sides of the support plate 9. The inside of the collection pipes 11 is used to store the leakage liquid. Drainage grooves 12 are provided inside both of the two collection pipes 11. The outside of the support plate 9 is respectively fixedly connected to the inside of the two drainage grooves 12. The water conduits 10 can effectively collect and guide the leakage liquid into the collection pipes 11. The collection pipes 11 are designed with drainage grooves 12 to temporarily store the leakage liquid for subsequent treatment and analysis.

[0031] Working principle: First, the top-layer structure composed of the filter box 1 and the support block 2 ensures the uniform distribution of the weight of solid waste, avoiding damage to the lower-layer structure. Second, the use of the geotextile 3 effectively protects the bentonite waterproof blanket 4 from physical damage and assists in the uniform distribution of water flow. When the leachate contacts the bentonite waterproof blanket 4 through the geotextile 3, due to the swelling property of bentonite, a strong waterproof barrier is formed. If the liquid penetrates through the waterproof blanket, it will trigger the conductive fibers 6 embedded in the conductive layer 5, changing the resistance value of the system. These changes are captured by the terminal resistor 7 and the transmission-line method detector and transmitted to the monitoring device, thus realizing the real-time monitoring and positioning of leakage. Finally, the water collection component ensures the effective collection and guidance of the leakage liquid, preventing it from causing a more extensive impact on the environment. The entire system works together to achieve the efficient detection and protection of leakage in the solid waste landfill.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A solid waste landfill leakage detection structure, comprising a filter frame (1), characterized in that: A plurality of support blocks (2) are fixedly connected inside the filter frame (1); a geotextile (3) is fixedly connected to the bottom of the support block (2); a bentonite waterproof blanket (4) is fixedly connected to the bottom of the geotextile (3); a conductive layer (5) is fixedly connected to the bottom of the bentonite waterproof blanket (4); conductive fibers (6) are arranged inside the conductive layer (5); terminal resistors (7) are fixedly connected to the front and rear sides of the conductive layer (5); wires (8) are fixedly connected to the far sides of the two terminal resistors (7); and a water collection component for collecting leaked liquid is arranged at the bottom of the conductive layer (5).

2. The solid waste landfill leakage detection structure according to claim 1, characterized in that: The water collection assembly comprises a support plate (9), the top of the support plate (9) being fixedly connected to the bottom of the conductive layer (5), a plurality of water pipes (10) being fixedly connected inside the support plate (9), collection pipes (11) being fixedly connected to the left and right sides of the support plate (9), and water guide grooves (12) being provided inside the two collection pipes (11).

3. The solid waste landfill leakage detection structure according to claim 1, characterized in that: A plurality of holes are provided inside the filter frame (1), and the support block (2) is truncated cone-shaped and is used to support solid waste.

4. The solid waste landfill leakage detection structure according to claim 1, characterized in that: The material of the geotextile (3) is polyester, and the material of the bentonite waterproof blanket (4) is natural sodium-based bentonite.

5. The solid waste landfill leakage detection structure according to claim 1, characterized in that: The outside of the bentonite waterproof blanket (4) is fixedly connected to the adjacent sides of the two terminal resistors (7), and the outside of the wire (8) is connected to a transmission line method detector.

6. The solid waste landfill leakage detection structure according to claim 2, characterized in that: The outside of the water conduit (10) is fixedly connected to a side close to the terminal resistor (7).

7. The solid waste landfill leakage detection structure according to claim 2, characterized in that: The left and right sides of the outside of the support plate (9) are respectively fixedly connected to the inside of the two water guide grooves (12), and the inside of the collecting pipe (11) is used to store the leaked liquid.

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