Full-quantitative treatment device for special landfill leachate

Abstract

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a full-quantitative treatment device for special landfill leachate, which comprises a pretreatment tank, a filter transfer tank is arranged on one side of the pretreatment tank, one end of the filter transfer tank is communicated and connected with the pretreatment tank, and a biochemical tank is arranged at the other end of the filter transfer tank. One side of the biochemical pool is communicated and connected with one end of the filtering transfer pool, and the other side of the biochemical pool is also provided with a chemical treatment closed pool. According to the utility model, the filtering transfer pool is independently arranged, so that the transfer pool can be independently cleaned after the device is used for filtering, meanwhile, the drawing and inserting type filtering plate is arranged, so that the filtering plate can be taken down and cleaned, and the periphery of the filtering plate is made of a rubber material and a lower pressing plate, so that the periphery of the filtering plate is more attached to the filtering transfer pool; the sealing performance is improved, and the landfill leachate is prevented from flowing out from the periphery of the plate to the next treatment pond without being filtered.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and in particular relates to a special garbage leachate full-quantity treatment device. Background Art

[0002] Leachate is a type of wastewater. Leachate refers to a high-concentration organic wastewater formed by the moisture contained in the garbage itself in the landfill, rainwater, snow and other moisture entering the landfill, minus the saturated water holding capacity of the garbage and covering soil layers, and passing through the garbage layer and covering soil layers. Full-scale treatment refers to the degrading of organic matter, heavy metals and other pollutants in the leachate, and the treatment method of directly treating the leachate to meet the discharge standards.

[0003] However, the existing landfill leachate treatment device still has some drawbacks during its specific use, such as:

[0004] The existing leachate treatment device cannot clean the filter plate well during use, which easily causes the filter plate to be blocked, which is not conducive to the treatment of the leachate. The treated waste cannot be collected well, and the inflow of leachate cannot be well controlled during treatment. It is easy for the leachate to accumulate in one place, which is not conducive to its filtration efficiency and affects the filtration efficiency. For this reason, we propose a special garbage leachate full-quantity treatment device. Utility Model Content

[0005] The purpose of the utility model is to provide a special garbage leachate full-quantity treatment device, which can solve the problems that the existing leachate treatment device cannot clean the filter plate well during use, easily causes the filter plate to be blocked, is not conducive to the treatment of the leachate, the treated waste cannot be well collected, and the inflow of the leachate cannot be well controlled during treatment, and easily causes the leachate to accumulate in one place, which is not conducive to its filtration efficiency and affects the filtration efficiency.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] A special fully quantitative treatment device for landfill leachate includes a pretreatment tank, a filtration transfer tank is provided on one side of the pretreatment tank, one end of the filtration transfer tank is connected to the pretreatment tank, a biochemical tank is provided on the other end of the filtration transfer tank, one side of the biochemical tank is connected to one end of the filtration transfer tank, and a chemical treatment closed tank is also provided on the other side of the biochemical tank.

[0008] Preferably, a filter water inlet is provided above the pretreatment tank, and a plurality of filter ports are provided at the bottom of the filter water inlet. The lower surface of the filter water inlet is connected to the upper surface of the pretreatment tank. Two electrode columns are provided in the pretreatment tank, and the two electrode columns are made of copper. The lower ends of the two electrode columns are connected to the lower surface of the pretreatment tank. The upper ends of the two electrode columns are provided with a motor fixing plate, and both ends of the motor fixing plate are provided with circular through holes. The upper ends of the two electrode columns respectively pass through the circular through holes at both ends of the two motor fixing plates.

[0009] Preferably, six square chutes are symmetrically provided on both sides of the filter transfer pool, and two filter plates and an isolation plate are respectively provided in the six square chutes. The two filter plates are made of rubber on all sides, and the isolation plate is made of rubber on all sides. Two lower pressure plates are also provided on the filter transfer pool, and four threaded through holes are respectively provided on the two lower pressure plates. Four downward pressure bolts are respectively provided in the four threaded through holes on the two lower pressure plates. Four threaded through holes are also provided on the upper surface of the filter transfer pool, and the lower ends of the four downward pressure bolts are respectively adapted to the four threaded through holes on the filter transfer pool.

[0010] Preferably, two support columns are provided on one side of the biochemical pool, and water pumps are provided at the upper ends of the two support columns. The water inlet end of the water pump is arranged in the middle position of the biochemical pool, and the water outlet end of the water pump is arranged in the center position of the chemical treatment closed pool.

[0011] Preferably, a clean water outlet is provided on one side of the chemical treatment closed tank, and a press-on / off valve is provided on the clean water outlet.

[0012] The technical effects achieved by this utility model are:

[0013] The utility model provides a special fully quantitative treatment device for landfill leachate. By separately setting up a filter transfer tank, the transfer tank can be cleaned separately after filtration. At the same time, a plug-in filter plate is provided so that the filter plate can be removed for cleaning. By setting the filter plate to be made of rubber material and a lower pressure plate around it, the filter plate is more closely fitted to the filter transfer tank, and the sealing is improved, thereby preventing the landfill leachate from flowing out from around the plate to the next treatment tank without being filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a special garbage leachate full-quantity treatment device of the utility model;

[0015] Figure 2 This is an isometric structural diagram of a special garbage leachate full-quantity treatment device of the utility model;

[0016] Figure 3This utility model Figure 2 A magnified schematic diagram of the local structure at center A;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the local structure at point B in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Pretreatment tank; 11. Filter water inlet; 12. Electrode column; 13. Motor fixing plate; 2. Filter transfer tank; 21. Square chute; 22. Filter plate; 23. Isolation plate; 24. Lower pressure plate; 25. Lower pressure bolt; 3. Biochemical tank; 31. Support column; 32. Water pump; 4. Chemical treatment closed tank; 41. Clean water outlet; 42. Push-on / off valve. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0021] like Figure 1 As shown, a special landfill leachate full-quantity treatment device includes a pretreatment tank 1, a filtering transfer tank 2 is provided on one side of the pretreatment tank 1, one end of the filtering transfer tank 2 is connected to the pretreatment tank 1, and a biochemical tank 3 is provided on the other end of the filtering transfer tank 2, one side of the biochemical tank 3 is connected to one end of the filtering transfer tank 2, and a chemical treatment closed tank 4 is further provided on the other side of the biochemical tank 3;

[0022] like Figure 1 As shown, the role of the pretreatment tank 1 is to electrolyze the leachate after preliminary filtration, and efficiently convert the organic pollutants in the landfill leachate into harmless or low-toxic substances. This technology not only improves the treatment efficiency, but also reduces the treatment cost, creating favorable conditions for subsequent biochemical treatment. The role of the filtration transfer tank 2 is to filter the pretreated landfill leachate again, and filter the solid impurities produced by the electrolyzed landfill leachate again, and retain them in the filtration transfer tank 2. The role of the biochemical tank 3 is to use microorganisms in the natural environment to oxidize and decompose organic matter and certain inorganic poisons (such as cyanide and sulfide) in the wastewater, and convert them into stable and harmless inorganic substances. The role of the chemical treatment closed tank 4 is to perform deep chemical treatment on the harmful substances still remaining in the water after treatment in the biochemical tank 3, and treat the landfill leachate to meet the discharge standards.

[0023] like Figure 1-3As shown, a filter water inlet 11 is provided above the pretreatment tank 1, and a plurality of filter ports are provided at the bottom of the filter water inlet 11. The lower surface of the filter water inlet 11 is connected to the upper surface of the pretreatment tank 1. Two electrode columns 12 are provided in the pretreatment tank 1. The two electrode columns 12 are made of copper. The lower ends of the two electrode columns 12 are connected to the lower surface of the pretreatment tank 1. The upper ends of the two electrode columns 12 are provided with a motor fixing plate 13. Both ends of the motor fixing plate 13 are provided with circular through holes. The upper ends of the two electrode columns 12 respectively penetrate the circular through holes at both ends of the two motor fixing plates 13.

[0024] like Figure 1-3 As shown, the function of the filter water inlet 11 is to filter the landfill leachate injected into the pretreatment tank 1 and filter out the solid impurities carried in the landfill leachate. The function of the electrode column 12 is to connect the top end to the power supply to perform electrolytic pretreatment on the landfill leachate in the pretreatment tank 1. The function of the motor fixing plate 13 is to install the power supply and the motor.

[0025] like Figure 2-4 As shown, six square chutes 21 are symmetrically provided on both sides of the filter transfer pool 2, and two filter plates 22 and an isolation plate 23 are respectively provided in the six square chutes 21. The four sides of the two filter plates 22 are made of rubber, and the four sides of the isolation plate 23 are made of rubber. The filter transfer pool 2 is further provided with two lower pressing plates 24, and the two lower pressing plates 24 are respectively provided with four threaded through holes. Four pressing bolts 25 are respectively provided in the four threaded through holes on the two lower pressing plates 24. The upper surface of the filter transfer pool 2 is further provided with four threaded through holes, and the lower ends of the four pressing bolts 25 are respectively adapted to the four threaded through holes on the filter transfer pool 2.

[0026] like Figure 2-4 As shown, the square chute 21 is used to install two filter plates 22 and an isolation plate 23, so that the two filter plates 22 and the isolation plate 23 can be slidably disassembled and installed. The two filter plates 22 and the isolation plate 23 are made of rubber on all sides to further improve the sealing between the edge and the filter transfer tank 2. The filter plate 22 is used to filter the leachate after electrolysis. The isolation plate 23 is used to isolate the connection between the biochemical tank 3 and the pretreatment tank 1. The lower pressure plate 24 is used to press down through the lower pressure bolt 25 to further improve the sealing between the edges of the two filter plates 22 and the isolation plate 23 and the filter transfer tank 2.

[0027] like Figure 3As shown, two support columns 31 are provided on one side of the biochemical pool 3, and a water pump 32 is provided at the upper end of the two support columns 31. The water inlet end of the water pump 32 is provided in the middle position of the biochemical pool 3, and the water outlet end of the water pump 32 is provided in the center position of the chemical treatment closed pool 4;

[0028] like Figure 3 As shown, the support column 31 is used to fix the water pump 32, and the water pump 32 is used to transport the treated upper layer water in the biochemical pool 3 to the chemical treatment closed pool 4.

[0029] like Figure 1 As shown, a clean water outlet 41 is provided on one side of the chemical treatment closed tank 4, and a press-on / off valve 42 is provided on the clean water outlet 41;

[0030] like Figure 1 As shown, the function of the clean water outlet 41 is to discharge the landfill leachate that meets the discharge standards, and the function of the pressing opening and closing valve 42 is to control the opening and closing of the clean water outlet 41.

[0031] The working principle of the present invention is as follows: during use, the landfill leachate is input into the pretreatment tank 1 through the filter water inlet 11, and the pretreatment tank 1 is connected to the relevant power generation device through the electrode column 12 to electrolyze the leachate after preliminary filtration, and the organic pollutants in the landfill leachate are efficiently converted into harmless or low-toxic substances. This technology not only improves the treatment efficiency, but also reduces the treatment cost, creating favorable conditions for subsequent biochemical treatment. The filter transfer tank 2 filters the pretreated landfill leachate again through the filter plate 22, and the solid impurities generated by the electrolyzed landfill leachate are again filtered. After filtration, the water is retained in the filtration transfer tank 2 for easy cleaning, and then the filtered water is transferred to the biochemical tank 3. The function of the biochemical tank 3 is to use microorganisms in the natural environment to oxidize and decompose organic matter and certain inorganic poisons (such as cyanide and sulfide) in the wastewater, and convert them into stable and harmless inorganic substances. The biochemically treated landfill leachate is then transferred to the chemical treatment closed tank 4 through the water pump 32. The function of the chemical treatment closed tank 4 is to carry out deep chemical treatment on the harmful substances still remaining in the water after treatment in the biochemical tank 3, and the landfill leachate is treated to meet the discharge standards and then discharged through the clean water outlet 41.

[0032] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A special landfill leachate full-scale treatment device, characterized by: The invention comprises a pretreatment pool (1), a filtering transfer pool (2) is provided on one side of the pretreatment pool (1), one end of the filtering transfer pool (2) is connected to the pretreatment pool (1), a biochemical pool (3) is provided on the other end of the filtering transfer pool (2), one side of the biochemical pool (3) is connected to one end of the filtering transfer pool (2), and a chemical treatment closed pool (4) is further provided on the other side of the biochemical pool (3).

2. The full-scale treatment device for special landfill leachate according to claim 1 is characterized by: A filter water inlet (11) is provided above the pretreatment tank (1), and a plurality of filter ports are provided at the bottom of the filter water inlet (11). The lower surface of the filter water inlet (11) is connected to the upper surface of the pretreatment tank (1). Two electrode columns (12) are provided in the pretreatment tank (1), and the two electrode columns (12) are made of copper. The lower ends of the two electrode columns (12) are connected to the lower surface of the pretreatment tank (1). The upper ends of the two electrode columns (12) are provided with a motor fixing plate (13), and both ends of the motor fixing plate (13) are provided with circular through holes. The upper ends of the two electrode columns (12) respectively pass through the circular through holes at both ends of the two motor fixing plates (13).

3. The full-scale treatment device for special landfill leachate according to claim 1 is characterized by: Six square chutes (21) are symmetrically provided on both sides of the filter transfer pool (2), and two filter plates (22) and an isolation plate (23) are respectively provided in the six square chutes (21). The four sides of the two filter plates (22) are made of rubber, and the four sides of the isolation plate (23) are made of rubber. Two lower pressure plates (24) are also provided on the filter transfer pool (2), and four threaded through holes are respectively provided on the two lower pressure plates (24). Four pressing bolts (25) are respectively provided in the four threaded through holes on the two lower pressure plates (24). Four threaded through holes are also provided on the upper surface of the filter transfer pool (2), and the lower ends of the four pressing bolts (25) are respectively adapted to the four threaded through holes on the filter transfer pool (2).

4. The full-scale treatment device for special landfill leachate according to claim 1 is characterized by: Two support columns (31) are provided on one side of the biochemical pool (3), and water pumps (32) are provided at the upper ends of the two support columns (31). The water inlet end of the water pump (32) is arranged at a middle position in the biochemical pool (3), and the water outlet end of the water pump (32) is arranged at a central position in the chemical treatment closed pool (4).

5. The full-scale treatment device for special landfill leachate according to claim 1 is characterized by: A clean water outlet (41) is provided on one side of the chemical treatment closed tank (4), and a press-on / off valve (42) is provided on the clean water outlet (41).

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