A landfill leachate treatment device

Abstract

This application relates to a landfill leachate treatment device, belonging to the field of landfill treatment. It includes a filter box containing filter plates. One side of the filter box is connected to an anaerobic reactor via a first outlet pipe. One side of the anaerobic reactor is connected to an aerobic reactor via a second outlet pipe. One side of the aerobic reactor is connected to an activated carbon box via a third outlet pipe. The activated carbon box contains multiple activated carbon plates. This application effectively reduces the impact of impurities in the leachate on the overall treatment process.

Description

Technical Field

[0001] This application relates to the field of waste treatment, and in particular to a waste leachate treatment device. Background Technology

[0002] With social development and increasing health awareness, more and more disposable products are being used in people's daily lives, resulting in more and more waste being generated.

[0003] Currently, the main method of waste disposal is incineration for power generation, which utilizes waste for energy purposes. During waste disposal, due to prolonged waste accumulation and the presence of liquids within the waste itself, leachate is generated. Leachate contains high concentrations of organic matter, ammonia nitrogen, and other harmful substances, thus requiring strict treatment to meet environmental emission standards.

[0004] The leachate treatment equipment currently used is designed to treat leachate through a multi-stage reaction. However, since leachate is generated from landfill leachate, it contains a lot of impurities. When using the previous equipment to treat leachate, the impurities inside the leachate will affect the treatment process. Utility Model Content

[0005] In order to reduce the impact of impurities in leachate on the overall treatment process, this application provides a landfill leachate treatment device.

[0006] The landfill leachate treatment equipment provided in this application adopts the following technical solution:

[0007] A landfill leachate treatment device includes a filter box, inside which a filter plate is installed. One side of the filter box is connected to an anaerobic reactor via a first outlet pipe. One side of the anaerobic reactor is connected to an aerobic reactor via a second outlet pipe. One side of the aerobic reactor is connected to an activated carbon box via a third outlet pipe. The activated carbon box contains multiple activated carbon plates.

[0008] By adopting the above technical solution, at the beginning of leachate treatment, a filter plate is used to filter impurities in the leachate, thereby reducing the occurrence of impurities in the leachate affecting the leachate treatment process in subsequent processes.

[0009] Optionally, an acid tank and an alkali tank are connected to one side of the filter box, and the acid tank and the alkali tank are connected to the filter box.

[0010] By adopting the above technical solution, when the acid or alkali concentration of the leachate is high, the acid or alkali solution inside the acid or alkali solution tank can be guided into the filter box to mix with the leachate, thereby achieving the adjustment of the leachate's acidity or alkalinity.

[0011] Optionally, the filter box is equipped with an acid-base sensor, the connection between the acid liquid cylinder and the filter box is equipped with an acid liquid solenoid valve, the connection between the alkali liquid cylinder and the filter box is equipped with an alkali liquid solenoid valve, and the acid-base sensor is connected to the acid liquid solenoid valve and the alkali liquid solenoid valve.

[0012] By adopting the above technical solution, after the leachate is guided into the filter box, the acidity or alkalinity of the leachate is detected by an acid-base sensor. Then, the flow of acid or alkali into the filter box is controlled by an acid solenoid valve and an alkali solenoid valve, thereby reducing the manual operation required for workers to adjust the acidity or alkalinity of the leachate.

[0013] Optionally, the filter box is connected to a stirring assembly, which is used to stir the liquid inside the filter box.

[0014] By adopting the above technical solution, when treating leachate, the stirring component is used to stir the leachate, which can accelerate the filtration process and make the mixing between the acid or alkali solution and the leachate more thorough.

[0015] Optionally, the stirring assembly includes a stirring motor, the output shaft of which is inserted into the filter box and fixedly connected with multiple stirring blades.

[0016] By adopting the above technical solution, when it is necessary to stir the leachate, the stirring motor is turned on, and the stirring motor drives the stirring blades to rotate. The stirring blades achieve the stirring operation of the leachate during the rotation process.

[0017] Optionally, a lifting hydraulic cylinder is fixedly connected to the top of the filter box. The piston rod of the lifting hydraulic cylinder is inserted into the filter box from top to bottom and is fixedly connected to the filter plate, and is used to drive the filter plate to move up and down.

[0018] By adopting the above technical solution and setting up a lifting hydraulic cylinder, the process of leachate penetrating the filter plate can be accelerated, and the process of workers collecting and handling impurities on the upper side of the filter plate can be facilitated.

[0019] Optionally, a water-proof sleeve is fitted around the piston rod of the lifting hydraulic cylinder. The upper end of the water-proof sleeve is fixedly connected to the inner wall of the adjacent filter box, and the bottom of the water-proof sleeve is fixedly connected to the filter plate.

[0020] By adopting the above technical solution, during the process of the lifting hydraulic cylinder driving the filter plate to move, the water-proof sleeve blocks the piston rod of the lifting hydraulic cylinder from the leachate, thereby reducing the corrosion caused by the piston rod of the lifting hydraulic cylinder coming into contact with the leachate during use.

[0021] Optionally, the activated carbon box has an opening near the end of each activated carbon plate for the activated carbon plate to be removed from the activated carbon plate. Each opening is provided with a baffle plate for blocking the opening. Each baffle plate is fixedly connected to the adjacent activated carbon plate and connected to the outer wall of the activated carbon box by a buckle.

[0022] By adopting the above technical solution, after prolonged use of the activated carbon plate, the activated carbon plate can be pulled out of the activated carbon box and replaced by opening the buckle and pulling the baffle plate, thereby enabling the activated carbon plate to fully adsorb harmful substances in the leachate inside the activated carbon box.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a filter plate, impurities in the leachate can be filtered out, reducing the impact of impurities in the leachate on subsequent processing steps;

[0025] 2. By setting up a stirring assembly, as well as acid and alkali tanks, the pH of the leachate can be fully adjusted;

[0026] 3. By setting up openings on the side walls of the activated carbon box and water baffles, it is convenient for staff to replace the activated carbon plates in the temporal part of the activated carbon box. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a half-sectional view of the filter box according to an embodiment of this application.

[0029] Figure 3 This is a half-sectional view of the activated carbon box according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Filter box; 11. Inlet pipe; 111. Inlet valve; 12. First outlet pipe; 121. First valve; 13. Filter plate; 14. Lifting hydraulic cylinder; 141. Waterproof sleeve; 15. Discharge gate; 16. Acid-base sensor; 17. Acid tank; 171. Acid solenoid valve; 18. Alkali tank; 181. Alkali solenoid valve; 2. Anaerobic reactor; 21. Second outlet pipe; 22. Second valve; 3. Aerobic reactor; 31. Third outlet pipe; 32. Third valve; 33. Pump body; 4. Activated carbon box; 41. Activated carbon plate; 42. Drain pipe; 421. Drain valve; 43. Water baffle; 431. Handle; 44. Buckle; 441. Clamping plate; 442. Torsion spring; 5. Stirring assembly; 51. Stirring motor; 52. Stirring shaft; 53. Stirring blade. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0032] This application discloses a landfill leachate treatment device, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a filter box 1. An inlet pipe 11 is connected and fixedly connected to the upper end of one side wall of the filter box 1, and an inlet valve 111 is installed on the inlet pipe 11. A first outlet pipe 12 is connected and fixedly connected to the lower end of the side wall of the filter box 1 away from the inlet pipe 11, and a first valve 121 is installed on the first outlet pipe 12. A horizontally arranged filter plate 13 is provided inside the filter box 1.

[0033] The end of the first outlet pipe 12 away from the filter box 1 is connected to the anaerobic reactor 2. The connection position between the first outlet pipe 12 and the anaerobic reactor 2 is adjusted according to the actual needs of the anaerobic reactor 2. The figure is only for illustration and does not specify the specific connection position between the first outlet pipe 12 and the anaerobic reactor 2.

[0034] The anaerobic reactor 2 is connected to a second outlet pipe 21 on the side away from the first outlet pipe 12. A second valve 22 is installed on the second outlet pipe 21. The end of the second outlet pipe 21 away from the anaerobic reactor 2 is connected to the aerobic reactor 3. The connection position between the second outlet pipe 21 and the aerobic reactor 3 is adjusted according to the actual needs of the aerobic reactor 3. The figure is only for illustration and does not specify the specific connection position between the second outlet pipe 21 and the aerobic reactor 3.

[0035] The side of the aerobic reactor 3 furthest from the second outlet pipe 21 is connected to a third outlet pipe 31. The third outlet pipe 31 is equipped with a third valve 32 and a pump body 33. The end of the third outlet pipe 31 furthest from the aerobic reactor 3 is connected to an activated carbon box 4. The third outlet pipe 31 passes through the upper end of one side wall of the activated carbon box 4 and is fixedly connected to the side wall. The activated carbon box 4 contains multiple horizontally arranged activated carbon plates 41, which are evenly distributed from top to bottom and spaced apart. The lower end of the side wall of the activated carbon box 4 furthest from the third outlet pipe 31 is connected to a drain pipe 42, which is equipped with a drain valve 421.

[0036] When leachate needs to be treated, it is guided into the filter box 1 through the inlet pipe 11. The leachate then flows from top to bottom through the filter plate 13. As the leachate flows through the filter plate 13, impurities mixed in with the leachate are blocked to the upper side of the filter plate 13. The remaining leachate then passes through the anaerobic reactor 2, the aerobic reactor 3, and the activated carbon box 4 in sequence, thereby realizing the leachate treatment process. The filter plate 13 filters the impurities in the leachate, realizing the separation of impurities in the leachate. This reduces the impact of impurities in the leachate on the treatment equipment during the leachate treatment process.

[0037] The sidewall of filter plate 13 slides vertically against the inner wall of filter box 1. A vertically positioned lifting hydraulic cylinder 14 is installed at the middle of the top wall of filter box 1. The piston rod of the lifting hydraulic cylinder 14 passes through the top sidewall of filter box 1 from top to bottom and slides vertically against the top sidewall of filter box 1. One end of the piston rod of the lifting hydraulic cylinder 14, which extends into the interior of filter box 1, is fixedly connected to the middle position of filter plate 13. A water-proof sleeve 141 is provided inside filter box 1. The water-proof sleeve 141 is telescopic. The water-proof sleeve 141 is fitted onto the outside of the piston rod. The upper end of the water-proof sleeve 141 is fixedly connected to the adjacent inner top wall of filter box 1, and the lower end of the water-proof sleeve 141 is fixedly connected to the adjacent filter plate 13. There are no holes in the filter plate 13 between the water-proof sleeve 141 and the piston rod, making it difficult for leachate from inside filter box 1 to enter the area between the water-proof sleeve 141 and the piston rod.

[0038] An opening is provided on the upper side of one side wall of the filter box 1, and a discharge door 15 is provided at the opening for sealing the opening.

[0039] The filter box 1 is connected to a stirring assembly 5, which is used to stir the leachate inside the filter box 1.

[0040] After the leachate enters the filter box 1, the agitator 5 agitates the leachate inside the filter box 1. During the agitation process, the leachate gradually penetrates the filter plate 13, causing impurities to accumulate on the upper side of the filter plate 13. When there are too many impurities on the filter plate 13, the inlet valve 111 is closed, the lifting hydraulic cylinder 14 is activated to move the filter plate 13 upward, and then the discharge gate 15 is opened to clean the impurities on the filter plate 13, thereby completing the cleaning process of impurities on the filter plate 13.

[0041] The stirring assembly 5 includes two opposing stirring motors 51, each vertically downward and mounted on the upper side wall of the filter box 1. The output shaft of each stirring motor 51 is fixedly connected to a stirring shaft 52, which penetrates the top wall of the filter box 1 and is rotatably connected to it. Multiple stirring blades 53 are fixedly connected to the side wall of each stirring shaft 52.

[0042] When the leachate enters the filter box 1, two stirring motors 51 are turned on. During the rotation of the output shaft of each stirring motor 51, the connected stirring shaft 52 is driven to rotate. During the rotation of each stirring shaft 52, the leachate inside the filter box 1 is stirred by stirring blades 53.

[0043] An acid cylinder 17 is fixedly connected to the top wall of filter box 1, and an alkali cylinder 18 is located on one side of the acid cylinder 17. The lower end of the acid cylinder 17 is connected to the interior of filter box 1 via a pipe, and an acid solenoid valve 171 is installed at the pipe. The lower end of the alkali cylinder 18 is connected to the interior of filter box 1 via a pipe, and an alkali solenoid valve 181 is installed at the pipe. An acid-base sensor 16 is located at the bottom of filter box 1. The acid-base sensor 16 is electrically connected to a terminal controller, which is electrically connected to the acid solenoid valve 171 and the alkali solenoid valve 181. The terminal sensor is located outside filter box 1 and is not shown in the figure.

[0044] After the leachate enters the filter box 1, the pH value of the leachate is monitored by the acid-base sensor 16. Then, based on the pH value of the leachate detected by the acid-base sensor 16, the terminal controller controls the acid solenoid valve 171 or the alkali solenoid valve 181 to open, and guide the acid or alkali in the acid cylinder 17 or the alkali cylinder 18 into the filter box 1, thereby realizing the acid-base neutralization process of the leachate inside the filter box 1.

[0045] An opening is provided on one side wall of the activated carbon box 4 near each activated carbon plate 41, allowing the activated carbon plate 41 to slide horizontally out of the activated carbon box 4. A baffle plate 43 is fixedly connected to the side of each activated carbon plate 41 closest to the adjacent opening. Each baffle plate 43 is located outside the activated carbon box 4, and the side of each baffle plate 43 closest to the activated carbon box 4 can abut against the outer wall of the activated carbon at the adjacent opening, sealing the adjacent opening. Each baffle plate 43 is connected to the outer wall of the adjacent activated carbon plate 41 via multiple clips 44. A handle 431 is fixedly connected to the side of each baffle plate 43 furthest from the adjacent activated carbon box 4.

[0046] When the activated carbon plate 41 needs to be replaced after a long period of use, open the buckle 44, and then pull the handle 431 to pull the activated carbon plate 41 out of the activated carbon box 4, so that the activated carbon plate 41 can be replaced.

[0047] The buckle 44 includes a buckle plate 441 rotatably connected to the outer wall of the activated carbon box 4. Each buckle plate 441 is connected to the activated carbon box 4 with a torsion spring 442 for moving the end of the buckle plate 441 toward the activated carbon box 4. The end of each buckle plate 441 away from the torsion spring 442 can abut against the side wall of the adjacent baffle plate 43.

[0048] The implementation principle of a landfill leachate treatment device according to an embodiment of this application is as follows: when leachate needs to be treated, the leachate is guided into the filter box 1 through the inlet pipe 11, and then filtered through the filter plate 13, and the pH value of the leachate is adjusted.

[0049] The leachate then enters the anaerobic reactor 2 and the aerobic reactor 3 in sequence for reaction. After the reaction is completed, the leachate enters the activated carbon box 4 and comes into contact with the activated carbon plate 41, so that the activated carbon plate 41 can adsorb the harmful substances in the leachate, thereby realizing the treatment of the leachate. After the treatment is completed, the leachate is discharged from the drain pipe 42.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A landfill leachate treatment device, characterized in that: The filter box (1) is provided with filter plates (13) inside. One side of the filter box (1) is connected to an anaerobic reactor (2) through a first water outlet pipe (12). One side of the anaerobic reactor (2) is connected to an aerobic reactor (3) through a second water outlet pipe (21). One side of the aerobic reactor (3) is connected to an activated carbon box (4) through a third water outlet pipe (31). The activated carbon box (4) is provided with multiple activated carbon plates (41) inside.

2. The landfill leachate treatment equipment according to claim 1, characterized in that: The filter box (1) is connected to an acid cylinder (17) and an alkali cylinder (18) on one side, and the acid cylinder (17) and the alkali cylinder (18) are connected to the filter box (1).

3. The landfill leachate treatment equipment according to claim 2, characterized in that: The filter box (1) is equipped with an acid-base sensor (16). An acid solenoid valve (171) is provided at the connection between the acid cylinder (17) and the filter box (1). An alkali solenoid valve (181) is provided at the connection between the alkali cylinder (18) and the filter box (1). The acid-base sensor (16) is connected to the acid solenoid valve (171) and the alkali solenoid valve (181).

4. A landfill leachate treatment device according to any one of claims 2-3, characterized in that: The filter box (1) is connected to a stirring assembly (5), which is used to stir the liquid inside the filter box (1).

5. The landfill leachate treatment equipment according to claim 4, characterized in that: The stirring assembly (5) includes a stirring motor (51), the output shaft of which is inserted into the filter box (1) and fixedly connected with multiple stirring blades (53).

6. The landfill leachate treatment equipment according to claim 4, characterized in that: A lifting hydraulic cylinder (14) is fixedly connected to the top of the filter box (1). The piston rod of the lifting hydraulic cylinder (14) is inserted into the filter box (1) from top to bottom and is fixedly connected to the filter plate (13) and is used to drive the filter plate (13) to move up and down.

7. The landfill leachate treatment equipment according to claim 6, characterized in that: The piston rod of the lifting hydraulic cylinder (14) is fitted with a water-proof sleeve (141). The upper end of the water-proof sleeve (141) is fixedly connected to the inner wall of the adjacent filter box (1), and the bottom of the water-proof sleeve (141) is fixedly connected to the filter plate (13).

8. The landfill leachate treatment equipment according to claim 1, characterized in that: The activated carbon box (4) has an opening near the end of each activated carbon plate (41) for the activated carbon plate (41) to be removed from the activated carbon plate (41). Each opening is provided with a baffle plate (43) for blocking the opening. Each baffle plate (43) is fixedly connected to the adjacent activated carbon plate (41) and connected to the outer wall of the activated carbon box (4) by a buckle (44).

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