Soil protection garbage landfill double-layer anti-seepage structure

Abstract

The utility model provides a soil protection garbage landfill double-layer anti-seepage structure. The soil protection garbage landfill double-layer anti-seepage structure comprises an anti-seepage assembly, a waste gas treatment assembly and a base layer. The anti-seepage assembly comprises a foundation pit, an asphalt layer, a supporting block, a protective layer, a water collecting tank, geotechnical cloth, an HDPE film, a compacted soil protective layer, a water pump, a purifier and a water pipe. The foundation pit is arranged at the top of the asphalt layer, the bottom of the asphalt layer is fixedly connected to the tops of the supporting blocks, the side face of the asphalt layer is fixedly connected to one side of the protective layer, the other side of the protective layer is fixedly connected to one side of the geotechnical cloth, the water collecting tank is arranged at the bottom of the asphalt layer, and the water collecting tank is arranged at the bottom of the geotechnical cloth. Through the arrangement of the water collecting tank, garbage sewage can be concentrated, the sewage in the water collecting tank is pumped by controlling the water pump to work, and then the sewage is purified by the purifier, so that the sewage can be reused, and meanwhile, the situation that the waterproof performance of the device is reduced due to sewage accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to a seepage prevention structure, in particular to a double-layer seepage prevention structure for soil protection landfill, belonging to the technical field of landfill. Background Technique

[0002] With the improvement of living standards, the garbage output in China has also increased greatly. In the past, most domestic garbage in China was disposed of by simple landfill. By digging pits to landfill domestic garbage, the degradation of garbage was completed through long-term weathering, etc. However, due to the problem of non-standard treatment of landfills in the early stage, a large amount of corrosive garbage and polluted leachate are generated during the self-degradation process of long-term landfilled garbage, and the polluted leachate, etc. seep into the groundwater layer, causing pollution to rivers and groundwater, seriously affecting the normal life of people around the landfill.

[0003] A Chinese published patent (publication number: CN212742645U) discloses a seepage prevention structure for a landfill; the seepage prevention structure of the landfill includes a compacted base layer, a cobblestone layer and a clay layer. A first HDPE anti-seepage membrane is laid above the compacted base layer, and a slope petrochemical layer is poured on the first HDPE anti-seepage membrane. The cobblestone layer is laid above the slope petrochemical layer, and a second HDPE anti-seepage membrane layer is laid above the cobblestone layer. The compacted clay layer is laid above the second HDPE anti-seepage membrane layer, and a pressing plate layer is fixedly embedded on the clay layer. A floating soil layer is laid above the pressing plate layer, and a geotextile layer is covered above the floating soil layer. The slope petrochemical layer is made of asphalt pouring, and the thickness of the slope petrochemical layer is 18-25 cm. The inner wall of the slope petrochemical layer forms a polygonal groove; the seepage prevention structure of the landfill provided by the utility model has the advantage of avoiding the problems of wrinkling and dislocation of the anti-seepage membrane. When the utility model is used for a long time, sewage accumulates on the anti-seepage layer. If not treated in time, the sewage is easy to corrode the anti-seepage layer, reducing the waterproof performance and service life of the anti-seepage layer. Therefore, a double-layer seepage prevention structure for soil protection landfill is proposed. Content of the Utility Model

[0004] In view of this, the utility model provides a double-layer seepage prevention structure for soil protection landfill to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is realized as follows: A double-layer seepage prevention structure for soil protection landfill includes a seepage prevention component, an exhaust gas treatment component and a base layer.

[0006] The seepage prevention component includes a foundation pit, an asphalt layer, a support block, a protective layer, a water collecting tank, a geotextile, an HDPE membrane, a compacted soil protection layer, a water pump, a purifier and a water pipe.

[0007] The foundation pit is arranged at the top of the asphalt layer. The bottom of the asphalt layer is fixedly connected to the top of the support block. The side of the asphalt layer is fixedly connected to one side of the protective layer. The other side of the protective layer is fixedly connected to one side of the geotextile. The water collection tank is arranged at the bottom of the asphalt layer. The support block is arranged inside the water collection tank. The bottom of the support block is fixedly connected to the top of the geotextile. The top of the HDPE membrane is fixedly connected to the bottom of the geotextile. The top of the compacted soil protection layer is arranged at the bottom of the HDPE membrane. The bottom of the compacted soil protection layer is arranged at the top of the base course.

[0008] Further preferably, the outer side wall of the water pipe is installed inside the protective layer. One end of the water pipe communicates with the inside of the water collection tank. The other end of the water pipe communicates with the input end of the water pump.

[0009] Further preferably, the outer side wall of the water pump is installed on the top of the base course. The bottom of the purifier is installed on the top of the base course. The output end of the water pump communicates with the inside of the purifier.

[0010] Further preferably, the waste gas treatment component includes a gas guiding stone cage, a gas collection box, an exhaust pipe, a filter screen plate, an activated carbon plate and a disinfection lamp. The bottom of the gas guiding stone cage is fixedly connected to the top of the foundation pit. The top of the gas guiding stone cage communicates with the inside of the gas collection box.

[0011] Further preferably, the outer side wall of the filter screen plate is installed on the inner side wall of the gas collection box. The outer side wall of the activated carbon plate is installed on the inner side wall of the gas collection box. The outer side wall of the disinfection lamp is installed on the inner side wall of the gas collection box.

[0012] Further preferably, one end of the exhaust pipe communicates with the inside of the gas collection box. One end of the exhaust pipe is fixedly connected to the top of the gas collection box.

[0013] Due to the adoption of the above technical solutions in the embodiments of the present invention, it has the following advantages:

[0014] 1. Through the setting of the water collection tank, the present invention can concentrate the garbage sewage. By controlling the operation of the water pump, the sewage in the water collection tank is pumped out, and then through the purification of the purifier, the sewage can be reused while avoiding the reduction of the waterproof performance of the device caused by the accumulation of sewage.

[0015] 2. By arranging a gas guiding stone cage in the foundation pit, the waste gas generated after garbage landfill can be conveyed into the gas collection box. Through the setting of the filter screen plate, the activated carbon plate and the disinfection lamp, the waste gas can be effectively purified. The purified gas is discharged through the exhaust pipe, avoiding the influence of the waste gas on the surrounding environment and improving the effect of garbage landfill.

[0016] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a sectional view structure diagram of the present utility model;

[0019] Figure 2 It is a side view structure diagram of the present utility model;

[0020] Figure 3 It is an internal structure diagram of the foundation pit of the present utility model;

[0021] Figure 4 It is a structure diagram of the waste gas treatment component of the present utility model.

[0022] Reference numerals: 101, anti-seepage component; 10, foundation pit; 11, asphalt layer; 12, support block; 13, protective layer; 14, water collecting tank; 15, geotextile; 16, HDPE membrane; 17, compacted soil protective layer; 18, water pump; 19, purifier; 110, water pipe; 201, waste gas treatment component; 20, gas guide gabion; 21, gas collecting box; 22, exhaust pipe; 23, filter mesh plate; 24, activated carbon plate; 25, disinfection lamp; 30, base layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0024] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0025] As Figures 1-4 shown, the embodiment of the present utility model provides a double-layer anti-seepage structure for soil protection landfill, including an anti-seepage component 101, a waste gas treatment component 201 and a base layer 30;

[0026] The anti-seepage component 101 includes a foundation pit 10, an asphalt layer 11, a support block 12, a protective layer 13, a water collecting tank 14, a geotextile 15, an HDPE membrane 16, a compacted soil protective layer 17, a water pump 18, a purifier 19, and a water pipe 110;

[0027] The foundation pit 10 is arranged on the top of the asphalt layer 11. The bottom of the asphalt layer 11 is fixedly connected to the top of the support block 12. The side of the asphalt layer 11 is fixedly connected to one side of the protective layer 13. The other side of the protective layer 13 is fixedly connected to one side of the geotextile 15. The water collecting tank 14 is arranged at the bottom of the asphalt layer 11. The support block 12 is arranged inside the water collecting tank 14. The bottom of the support block 12 is fixedly connected to the top of the geotextile 15. The top of the HDPE membrane 16 is fixedly connected to the bottom of the geotextile 15. The top of the compacted soil protective layer 17 is arranged at the bottom of the HDPE membrane 16. The bottom of the compacted soil protective layer 17 is arranged at the top of the base layer 30.

[0028] In one embodiment, the outer sidewall of the water pipe 110 is installed inside the protective layer 13. One end of the water pipe 110 communicates with the inside of the water collecting tank 14. The other end of the water pipe 110 communicates with the input end of the water pump 18. The outer sidewall of the water pump 18 is installed on the top of the base layer 30. The bottom of the purifier 19 is installed on the top of the base layer 30. The output end of the water pump 18 communicates with the inside of the purifier 19. The asphalt layer 11 filters the garbage sewage for the first time, filtering out the larger impurities in the sewage. The filtered sewage enters the water collecting tank 14. Through the settings of the geotextile 15, the HDPE membrane 16, and the compacted soil protective layer 17, it plays an anti-seepage role in the sewage, preventing the sewage from seeping out and affecting the external soil. Through the setting of the water pump 18, the sewage in the water collecting tank 14 can be pumped out. The pumped sewage enters the purifier 19 for purification. The purified water can be used for irrigation, thus preventing the sewage from accumulating and corroding the geotextile 15 and the HDPE membrane 16, and ensuring the anti-seepage ability of the device.

[0029] In one embodiment, the waste gas treatment component 201 includes a gas guiding stone cage 20, a gas collecting box 21, an exhaust pipe 22, a filter screen plate 23, an activated carbon plate 24, and a disinfection lamp 25; the bottom of the gas guiding stone cage 20 is fixedly connected to the top of the foundation pit 10, the top of the gas guiding stone cage 20 communicates with the inside of the gas collecting box 21, the outer side wall of the filter screen plate 23 is installed on the inner side wall of the gas collecting box 21, the outer side wall of the activated carbon plate 24 is installed on the inner side wall of the gas collecting box 21, the outer side wall of the disinfection lamp 25 is installed on the inner side wall of the gas collecting box 21, one end of the exhaust pipe 22 communicates with the inside of the gas collecting box 21, and one end of the exhaust pipe 22 is fixedly connected to the top of the gas collecting box 21. Through the setting of the gas guiding stone cage 20, the waste gas generated after landfill can be transported into the gas collecting box 21. Through the settings of the filter screen plate 23, the activated carbon plate 24, and the disinfection lamp 25, the waste gas can be effectively purified. The purified gas is discharged through the exhaust pipe 22, avoiding the waste gas from affecting the surrounding environment and improving the landfill effect.

[0030] When the present utility model is in operation: waste is landfilled through the foundation pit 10. Through the settings of the geotextile 15, the HDPE membrane 16, and the compacted soil protection layer 17, it plays a role in preventing seepage of the sewage caused by landfill, avoiding the sewage from seeping out and affecting the external soil. The asphalt layer 11 filters the landfill sewage for the first time, filtering out the larger impurities in the sewage. The filtered sewage enters the water collecting tank 14. By controlling the operation of the water pump 18, the water pump 18 pumps the sewage in the water collecting tank 14. The pumped sewage enters the purifier 19 for purification, and the purified water can be used for irrigation, thus reusing the sewage. At the same time, it can avoid the sewage from accumulating and corroding the geotextile 15 and the HDPE membrane 16, ensuring the anti-seepage ability of the device; landfill also generates waste gas. The gas guiding stone cage 20 transports the waste gas generated after landfill into the gas collecting box 21. The filter screen plate 23 filters out the larger particles in the waste gas, the activated carbon plate 24 filters out the fine particles and toxic gases in the waste gas, and the disinfection lamp 25 can effectively sterilize the gas, thereby effectively purifying the waste gas. The purified gas is discharged through the exhaust pipe 22, avoiding the waste gas from affecting the surrounding environment and improving the landfill effect.

[0031] The above is only the specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A soil protection landfill double-layer anti-seepage structure, characterized in that: It comprises an anti-seepage component (101), an exhaust gas treatment component (201) and a base layer (30); The anti-seepage component (101) comprises a foundation pit (10), an asphalt layer (11), a support block (12), a protective layer (13), a water collection tank (14), a geotextile (15), a HDPE membrane (16), a compacted soil protective layer (17), a water pump (18), a purifier (19) and a water pipe (110); The foundation pit (10) is arranged at the top of the asphalt layer (11), the bottom of the asphalt layer (11) is fixedly connected to the top of the support block (12), the side of the asphalt layer (11) is fixedly connected to one side of the protective layer (13), and the other side of the protective layer (13) is fixedly connected to one side of the geotextile (15); the water collecting trough (14) is arranged at the bottom of the asphalt layer (11), the support block (12) is arranged inside the water collecting trough (14), the bottom of the support block (12) is fixedly connected to the top of the geotextile (15), the top of the HDPE film (16) is fixedly connected to the bottom of the geotextile (15), the top of the compacted soil protection layer (17) is arranged at the bottom of the HDPE film (16), and the bottom of the compacted soil protection layer (17) is arranged at the top of the base layer (30).

2. A soil protection landfill double-layer anti-seepage structure according to claim 1, characterized in that: The outer wall of the water pipe (110) is installed inside the protective layer (13), one end of the water pipe (110) is connected to the inside of the water collecting tank (14), and the other end of the water pipe (110) is connected to the input end of the water pump (18).

3. The soil protection landfill double-layer anti-seepage structure according to claim 2 is characterized by: The outer wall of the water pump (18) is installed on the top of the base layer (30), the bottom of the purifier (19) is installed on the top of the base layer (30), and the output end of the water pump (18) is connected to the interior of the purifier (19).

4. The soil protection landfill double-layer anti-seepage structure according to claim 2 is characterized by: The waste gas treatment component (201) comprises an air-conducting gabion (20), an air collecting box (21), an exhaust pipe (22), a filter screen (23), an activated carbon plate (24) and a disinfection lamp (25); the bottom of the air-conducting gabion (20) is fixedly connected to the top of the foundation pit (10), and the top of the air-conducting gabion (20) is connected to the interior of the air collecting box (21).

5. The soil protection landfill double-layer anti-seepage structure according to claim 4 is characterized by: The outer wall of the filter screen plate (23) is mounted on the inner wall of the air collecting box (21), the outer wall of the activated carbon plate (24) is mounted on the inner wall of the air collecting box (21), and the outer wall of the disinfection lamp (25) is mounted on the inner wall of the air collecting box (21).

6. The soil protection landfill double-layer anti-seepage structure according to claim 5, characterized in that: One end of the exhaust pipe (22) is connected to the interior of the air collecting box (21), and one end of the exhaust pipe (22) is fixedly connected to the top of the air collecting box (21).

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