High-efficiency biological treatment device for landfill leachate by utilizing aerobic biological treatment

Abstract

The invention discloses an efficient biological treatment device for landfill leachate by utilizing aerobic biological treatment, and relates to the technical field of biological treatment of garbage wastewater. The landfill leachate high-efficiency biological treatment device utilizing aerobic biological treatment comprises a reaction tank, the top of the reaction tank is fixedly connected with an impurity collecting tank, and the surface of the impurity collecting tank is fixedly connected with a filtering and separating box body. According to the high-efficiency biological treatment device for the landfill leachate by utilizing aerobic biological treatment, multiple groups of second spoilers and first spoilers are arranged on the surface of a first fixed block, and a second rotating shaft and a third rotating shaft are driven to rotate by starting a double-head motor, so that oxygen can be better diffused to each corner of the leachate; the condition of local oxygen deficit or oxygen enrichment is avoided, and it is ensured that aerobic microorganisms can obtain enough oxygen for metabolic activity in the whole treatment area, so that the treatment efficiency of the landfill leachate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of biological treatment of garbage wastewater, and specifically to an efficient biological treatment device for landfill leachate using aerobic biological treatment. Background Art

[0002] During the landfill process, due to compaction and microbial decomposition, pollutants dissolve with water and form landfill leachate together with rainfall, runoff, etc. Landfill leachate is a high-concentration organic wastewater with large variations in water quality and quantity over time, complex composition, high BOD and COD values, high ammonia nitrogen and heavy metal contents, high chromaticity, and odor. Improper treatment will cause serious harm to the environment and humans.

[0003] Referring to the invention patent with the Chinese publication number "CN118724258A", it includes a treatment tank. One end of the treatment tank is provided with a liquid inlet, and the other end is provided with a liquid outlet. A plurality of active biological filler modules are arranged in the treatment tank. Each active biological filler module is connected to the treatment tank through a connection unit. The plurality of active biological filler modules are arranged at intervals along the flow direction of the leachate, and the treatment tank is divided into a plurality of treatment areas; it also includes an oxygenation mechanism for oxygenating the leachate upstream of each active biological filler module, and a detection unit for detecting leachate parameters is arranged in each treatment area.

[0004] The existing device uses a ventilation pipe to supply oxygen separately when treating landfill leachate, resulting in uneven local oxygen distribution, unable to effectively provide sufficient oxygen for aerobic microorganisms, causing their abnormal metabolism and affecting the treatment efficiency of landfill leachate. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an efficient biological treatment device for landfill leachate using aerobic biological treatment to solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An efficient biological treatment device for landfill leachate using aerobic biological treatment includes a reaction tank. A impurity collection tank is fixedly connected to the top of the reaction tank. A filtration and separation box body is fixedly connected to the surface of the impurity collection tank. A liquid level gauge and a dissolved oxygen detector are fixedly connected inside the reaction tank. A leachate filtration mechanism is fixedly connected to the top of the reaction tank. A uniform stirring mechanism is rotatably connected inside the reaction tank. A biological sludge collection mechanism is fixedly connected inside the reaction tank. A smart air outlet pipe is fixedly connected to the top of the reaction tank; The leachate filtration mechanism includes: The first rotating shaft, the first rotating shaft is rotatably connected inside the filtration and separation box body, and a rotating drum is fixedly connected to the surface of the first rotating shaft.

[0007] Preferably, a comb-tooth arc-shaped scraper is fixedly connected to the surface of the rotating drum, a second motor is fixedly connected to the center of the rotating drum, and a water inlet pipe is fixedly connected to the top of the filtration and separation box body.

[0008] A third motor is fixedly connected to the surface of the filtration and separation box body, a first pipe is fixedly connected to the inside of the third motor through an output shaft, an anti-flushing spray head is fixedly connected to the surface of the first pipe, and a flushing water inlet pipe is also fixedly connected to the surface of the first pipe, and the flushing water inlet pipe is fixedly connected to the surface of the filtration and separation box body.

[0009] Preferably, a filter plate is fixedly connected to the inside of the filtration and separation box body, a connecting pipe is fixedly connected to the bottom of the filtration and separation box body, a first motor is fixedly connected to the surface of the filtration and separation box body, a first rotating shaft is fixedly connected to the inside of the first motor through an output shaft, a groove is formed in the surface of the filtration and separation box body, and an impurity collection groove is arranged below the groove formed in the filtration and separation box body.

[0010] Preferably, the uniform stirring mechanism includes a fourth motor, the fourth motor is fixedly connected to the top of the reaction tank, a fourth rotating shaft is rotatably connected to the inside of the fourth motor, a first rotating block is fixedly connected to the surface of the fourth rotating shaft, a connecting shaft is fixedly connected to the bottom of the first rotating block, and a second rotating block is fixedly connected to the bottom of the connecting shaft.

[0011] Preferably, a first fixing block is fixedly connected to the surface of the first rotating block, the number of the first fixing blocks is three, the three first fixing blocks are evenly distributed about the center of the first rotating block, a double-headed motor is fixedly connected to the inside of the first fixing block, a second rotating shaft is rotatably connected to one end of the double-headed motor, a second spoiler is fixedly connected to the surface of the second rotating shaft, a third rotating shaft is rotatably connected to the other end of the double-headed motor, and a first spoiler is fixedly connected to the surface of the third rotating shaft.

[0012] Preferably, an aeration device is fixedly connected to the inside of the second rotating block, a second pipe is fixedly connected to the top of the aeration device, a third pipe is fixedly connected to the surface of the second pipe, the number of the third pipes is six, and the six third pipes are evenly distributed about the center of the second rotating block, and an air outlet pipe is fixedly connected to the surface of the third pipe.

[0013] Preferably, an arc-shaped spoiler is fixedly connected to the surface of the second rotating block through a fixing rod. There are six arc-shaped spoilers, and the six arc-shaped spoilers are evenly distributed around the axis of the second rotating block. The arc-shaped spoilers and the third pipe are staggeredly distributed around the axis of the second rotating block. The bottom of the reaction tank is fixedly connected with a water outlet pipe, and an electromagnetic control valve is fixedly connected to the surface of the water outlet pipe.

[0014] Preferably, the biological sludge collection mechanism includes a collection tank movably connected to the inside of the reaction tank. A handle is fixedly connected to the surface of the collection tank, and a microfiltration membrane is fixedly connected to the inside of the reaction tank.

[0015] The present invention provides a high-efficiency biological treatment device for landfill leachate using aerobic biological treatment, having the following beneficial effects: 1. For the high-efficiency biological treatment device for landfill leachate using aerobic biological treatment, by setting a filter plate to intercept large-particle impurities, it avoids subsequent aerobic microorganisms from aggregating around the large-particle impurities to form larger microbial flocs, thereby reducing the inducement of microbial aggregation, enabling aerobic microorganisms to exist in the water body in a relatively dispersed state, increasing the contact area between aerobic microorganisms and oxygen, thus improving the treatment efficiency of landfill leachate. And an anti-flushing nozzle is provided, which is driven to rotate by the start of the third motor, thus facilitating the flushing of the impurities accumulated on the surface of the filter plate, effectively removing the impurities accumulated inside and on the surface of the filter mesh pores, making the pores of the filter mesh unblocked again, restoring the filtration flux of the filter mesh, ensuring the treatment capacity of the device, and the impurities fall to the lowest part of the filter plate under the action of gravity. Finally, by starting the first motor, the comb-shaped arc-shaped scraper timely scrapes the accumulated impurities into the impurity collection tank for collection, avoiding the influence of impurity accumulation on the treatment capacity of the filter mesh, thereby further improving the treatment efficiency of landfill leachate.

[0016] 2. For the high-efficiency biological treatment device for landfill leachate using aerobic biological treatment, by arranging multiple groups of second spoilers and first spoilers on the surface of the first fixing block, and driving the second rotating shaft and the third rotating shaft to rotate by starting the double-headed motor, oxygen can be better diffused to every corner of the leachate, avoiding local hypoxia or oxygen enrichment, ensuring that aerobic microorganisms can obtain sufficient oxygen for metabolic activities throughout the treatment area, thereby improving the treatment efficiency of landfill leachate.

[0017] 3. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment is provided with arc-shaped flow deflectors on the surface of the second rotating block through fixing rods. After the air outlet pipe aerates, the rotation of the second rotating block drives the arc-shaped flow deflectors to rotate. First, when the amount of oxygen is small, the oxygen directly floats upward through the gap between the arc-shaped flow deflector and the second rotating block. As the oxygen content gradually increases, part of the oxygen is broken and separated by the through holes opened on the surface of the arc-shaped flow deflector, further generating a large number of oxygen bubbles, making the oxygen bubbles more dispersed and avoiding the situation of local hypoxia or oxygen enrichment. As the oxygen content increases again, a further part of the oxygen is guided along the surface of the arc-shaped flow deflector towards the inner surface of the reaction tank, avoiding the problem of uneven local oxygen distribution caused by the separate oxygen supply of the ventilation pipe, thereby providing sufficient oxygen for aerobic microorganisms and improving the treatment efficiency of landfill leachate.

[0018] 4. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment is provided with a collection tank. Through the stirring of the second rotating block and the first rotating block, it is convenient for the impurities generated by aerobic microorganisms to enter the interior of the collection tank through the microfiltration membrane and be collected, preventing them from accumulating in the reaction tank, thereby avoiding the inhibitory effect on the growth and metabolism of aerobic microorganisms, ensuring the efficient progress of the biological treatment process, and improving the treatment efficiency of landfill leachate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front perspective structural schematic diagram of the present invention; Figure 2 is the front perspective structural schematic diagram of the present invention; Figure 3 is the sectional view schematic diagram of the filtration and separation box body of the present invention; Figure 4 is the present invention Figure 3 the enlarged schematic diagram at A in; Figure 5 is the sectional view schematic diagram of the reaction tank of the present invention; Figure 6 is the present invention Figure 5 the enlarged schematic diagram at B in; Figure 7 is the three-dimensional schematic diagram of the uniform stirring mechanism of the present invention; Figure 8 is the sectional view schematic diagram of the reaction tank of the present invention.

[0020] In the figure: 1, reaction tank; 2, filtration and separation box body; 3, impurity collection tank; 4, liquid level gauge; 5, dissolved oxygen detector; 6, leachate filtration mechanism; 61, first motor; 62, backwash spray head; 63, flushing water inlet pipe; 64, first pipe; 65, filter plate; 66, second motor; 67, rotating drum; 68, first rotating shaft; 69, water inlet pipe; 610, connecting pipe; 611, third motor; 612, comb-shaped arc-shaped scraper; 7, uniform stirring mechanism; 71, fourth motor; 72, first rotating block; 73, second rotating block; 74, first fixing block; 75, double-headed motor; 76, second rotating shaft; 77, third rotating shaft; 78, first spoiler; 79, second spoiler; 710, fourth rotating shaft; 711, arc-shaped spoiler; 712, aeration device; 713, second pipe; 714, third pipe; 715, air outlet pipe; 716, water outlet pipe; 717, electromagnetic control valve; 718, connecting shaft; 8, biological sludge collection mechanism; 81, collection tank; 82, microfiltration membrane; 83, handle; 9, intelligent air outlet pipe. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0023] Example 1: Please refer to Figures 1 - 4 , the present invention provides a technical solution: a high-efficiency biological treatment device for landfill leachate using aerobic biological treatment, including a reaction tank 1, an impurity collection tank 3 is fixedly connected to the top of the reaction tank 1, a filtration and separation box body 2 is fixedly connected to the surface of the impurity collection tank 3, a liquid level gauge 4 and a dissolved oxygen detector 5 are fixedly connected to the inside of the reaction tank 1, a leachate filtration mechanism 6 is fixedly connected to the top of the reaction tank 1, a uniform stirring mechanism 7 is rotatably connected to the inside of the reaction tank 1, a biological sludge collection mechanism 8 is fixedly connected to the inside of the reaction tank 1, and an intelligent air outlet pipe 9 is fixedly connected to the top of the reaction tank 1; The leachate filtration mechanism 6 includes: The first rotating shaft 68, the first rotating shaft 68 is rotatably connected to the inside of the filtration and separation box body 2, and a rotating drum 67 is fixedly connected to the surface of the first rotating shaft 68.

[0024] The surface of the rotating drum 67 is fixedly connected with a comb-tooth arc-shaped scraper 612, the axis of the rotating drum 67 is fixedly connected with a second motor 66, and the top of the filtration and separation box body 2 is fixedly connected with a water inlet pipe 69.

[0025] The surface of the filtration and separation box body 2 is fixedly connected with a third motor 611. Inside the third motor 611, a first pipe 64 is fixedly connected through an output shaft. The surface of the first pipe 64 is fixedly connected with a backwash spray head 62, and a washing water inlet pipe 63 is also fixedly connected to the surface of the first pipe 64, and the washing water inlet pipe 63 is fixedly connected to the surface of the filtration and separation box body 2.

[0026] A filter plate 65 is fixedly connected inside the filtration and separation box body 2, and a connecting pipe 610 is fixedly connected to the bottom of the filtration and separation box body 2. A first motor 61 is fixedly connected to the surface of the filtration and separation box body 2. Inside the first motor 61, a first rotating shaft 68 is fixedly connected through an output shaft. A groove is formed on the surface of the filtration and separation box body 2, and the impurity collection tank 3 is arranged below the groove formed on the filtration and separation box body 2.

[0027] During use, first introduce the landfill leachate from the water inlet pipe 69. After staying briefly inside the filtration and separation box body 2, the landfill leachate flows into the inside of the reaction tank 1 through the filtration of the filter plate 65. The inflow amount of the landfill leachate is restricted by the real-time measurement of the liquid level gauge 4. While filtering, start the first motor 61. The start of the first motor 61 drives the first rotating shaft 68 to rotate through the output shaft. The rotation of the first rotating shaft 68 drives the rotating drum 67 to rotate around the axis of the first rotating shaft 68. At the same time, start the second motor 66. The start of the second motor 66 drives the rotating drum 67 to rotate around the output shaft of the second motor 66 through the output shaft. The rotation of the rotating drum 67 drives the comb-tooth arc-shaped scraper 612 to rotate, so as to sweep the impurities accumulated at the bottom of the filter plate 65 into the inside of the impurity collection tank 3 for collection.

[0028] When the filter plate 65 has been used for a period of time, the third motor 611 can be started. The start of the third motor 611 drives the first pipe 64 to rotate by an angle through the output shaft, so that the water poured into the washing water inlet pipe 63 is sprayed onto the surface of the filter plate 65 at different angles through the first pipe 64 and the backwash spray head 62, washing the impurities on the surface of the filter plate 65, which is convenient for the comb-tooth arc-shaped scraper 612 to sweep them into the inside of the impurity collection tank 3.

[0029] By setting the filter plate 65 to intercept large - particle impurities, it avoids subsequent aerobic microorganisms from aggregating around the large - particle impurities to form larger microbial flocs, thereby reducing the inducement for microbial aggregation. This enables aerobic microorganisms to exist in a relatively dispersed state in the water body, increasing the contact area between aerobic microorganisms and oxygen, thus improving the treatment efficiency of landfill leachate. Additionally, an anti - flush nozzle 62 is provided. When the third motor 611 starts, it drives the anti - flush nozzle 62 to rotate, facilitating the flushing of the impurities accumulated on the surface of the filter plate 65. This can effectively remove the impurities accumulated inside and on the surface of the filter mesh pores, making the pores of the filter mesh unblocked again, restoring the filtration flux of the filter mesh, ensuring the treatment capacity of the device. Moreover, the impurities fall to the bottom of the filter plate 65 under the action of gravity. When the first motor 61 starts, the comb - tooth arc - shaped scraper 612 timely scrapes the accumulated impurities into the interior of the impurity collection tank 3 for collection, preventing the accumulation of impurities from affecting the treatment capacity of the filter mesh, and further improving the treatment efficiency of landfill leachate.

[0030] Embodiment 2: Please refer to Figures 1 - 8 , based on Embodiment 1, the present invention provides a technical solution: The uniform stirring mechanism 7 includes a fourth motor 71. The fourth motor 71 is fixedly connected to the top of the reaction tank 1. A fourth rotating shaft 710 is rotatably connected inside the fourth motor 71. A first rotating block 72 is fixedly connected to the surface of the fourth rotating shaft 710. A connecting shaft 718 is fixedly connected to the bottom of the first rotating block 72. A second rotating block 73 is fixedly connected to the bottom of the connecting shaft 718.

[0031] A first fixing block 74 is fixedly connected to the surface of the first rotating block 72. The number of the first fixing blocks 74 is three, and the three first fixing blocks 74 are evenly distributed around the axis of the first rotating block 72. A double - headed motor 75 is fixedly connected inside the first fixing block 74. One end of the double - headed motor 75 is rotatably connected to a second rotating shaft 76. A second spoiler 79 is fixedly connected to the surface of the second rotating shaft 76. The other end of the double - headed motor 75 is rotatably connected to a third rotating shaft 77. A first spoiler 78 is fixedly connected to the surface of the third rotating shaft 77.

[0032] An aeration device 712 is fixedly connected inside the second rotating block 73. A second pipe 713 is fixedly connected to the top of the aeration device 712. A third pipe 714 is fixedly connected to the surface of the second pipe 713. The number of the third pipes 714 is six, and the six third pipes 714 are evenly distributed around the axis of the second rotating block 73. An air - outlet pipe 715 is fixedly connected to the surface of the third pipe 714.

[0033] The surface of the second rotating block 73 is fixedly connected with arc-shaped spoiler plates 711 through fixing rods. There are six arc-shaped spoiler plates 711, and the six arc-shaped spoiler plates 711 are evenly distributed around the axis of the second rotating block 73. The arc-shaped spoiler plates 711 and the third pipe 714 are staggeredly distributed around the axis of the second rotating block 73. The bottom of the reaction tank 1 is fixedly connected with a water outlet pipe 716, and an electromagnetic control valve 717 is fixedly connected to the surface of the water outlet pipe 716.

[0034] The biological sludge collection mechanism 8 includes a collection tank 81. The collection tank 81 is movably connected inside the reaction tank 1. A handle 83 is fixedly connected to the surface of the collection tank 81. A microfiltration membrane 82 is fixedly connected inside the reaction tank 1.

[0035] During use, after the leachate flows into the interior of the reaction tank 1, the fourth motor 71 is started. The start of the fourth motor 71 drives the fourth rotating shaft 710 to rotate. The rotation of the fourth rotating shaft 710 drives the first rotating block 72 and the second rotating block 73 to rotate together. The rotation of the first rotating block 72 drives the first fixing block 74 to rotate. Subsequently, the double-headed motor 75 is started. The start of the double-headed motor 75 drives the second rotating shaft 76 and the third rotating shaft 77 to rotate together, thereby driving the second spoiler plate 79 and the first spoiler plate 78 fixedly connected to the surface to rotate. The rotation of the second rotating block 73 drives the arc-shaped spoiler plates 711 to rotate together. Subsequently, the aeration device 712 is started. The gas generated after the start of the aeration device 712 is finally ejected from the air outlet pipe 715 through the pipe. The start or shutdown of the aeration device 712 is controlled by the real-time detection of the dissolved oxygen meter 5, and the intelligent air outlet pipe 9 is opened or closed by the real-time detection of the dissolved oxygen meter 5. When the reaction tank 1 is being processed, the impurities generated by aerobic microorganisms enter the interior of the collection tank 81 through the microfiltration membrane 82 and are collected.

[0036] By arranging multiple groups of second spoiler plates 79 and first spoiler plates 78 on the surface of the first fixing block 74, the start of the double-headed motor 75 drives the second rotating shaft 76 and the third rotating shaft 77 to rotate, so that oxygen can be better diffused to all corners of the leachate, avoiding local hypoxia or oxygen enrichment, ensuring that aerobic microorganisms can obtain sufficient oxygen for metabolic activities throughout the treatment area, and thus improving the treatment efficiency of the leachate.

[0037] An arc-shaped spoiler 711 is arranged on the surface of the second rotating block 73 through a fixing rod. After aeration in the air outlet pipe 715, the rotation of the second rotating block 73 drives the arc-shaped spoiler 711 to rotate. First, when the amount of oxygen is small, the oxygen directly floats up through the gap between the arc-shaped spoiler 711 and the second rotating block 73. As the oxygen content gradually increases, part of the oxygen is broken and separated by the through holes formed on the surface of the arc-shaped spoiler 711, further generating a large number of oxygen bubbles, making the oxygen bubbles more dispersed, and avoiding the situation of local hypoxia or oxygen enrichment. As the oxygen content increases again, a further part of the oxygen is guided along the surface of the arc-shaped spoiler 711 towards the inner surface direction of the reaction tank 1, avoiding the problem of uneven local oxygen distribution caused by the separate oxygen supply of the air pipe, thereby providing sufficient oxygen for aerobic microorganisms and improving the treatment efficiency of landfill leachate.

[0038] By arranging a collection tank 81 and through the agitation of the second rotating block 73 and the first rotating block 72, it is convenient to collect the impurities generated by aerobic microorganisms through the microfiltration membrane 82 into the interior of the collection tank 81, preventing them from accumulating in the reaction tank 1, thereby avoiding the inhibitory effect on the growth and metabolism of aerobic microorganisms, ensuring the efficient progress of the biological treatment process, and improving the treatment efficiency of landfill leachate.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A highly efficient biological treatment device for landfill leachate using aerobic biological treatment, comprising a reaction tank (1), characterized in that: The top of the reaction tank (1) is fixedly connected to an impurity collection tank (3), the surface of the impurity collection tank (3) is fixedly connected to a filtering and separation box (2), the interior of the reaction tank (1) is fixedly connected to a liquid level meter (4) and a dissolved oxygen meter (5), the top of the reaction tank (1) is fixedly connected to a leachate filtering mechanism (6), the interior of the reaction tank (1) is rotatably connected to a uniform stirring mechanism (7), the interior of the reaction tank (1) is fixedly connected to a biological sludge collection mechanism (8), and the top of the reaction tank (1) is fixedly connected to an intelligent air outlet pipe (9); The leachate filtering mechanism (6) comprises: A first rotating shaft (68), the first rotating shaft (68) is rotatably connected inside the filtering and separation box (2), and a rotating drum (67) is fixedly connected to the surface of the first rotating shaft (68).

2. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 1, characterized in that: A comb-tooth arc-shaped scraper (612) is fixedly connected to the surface of the rotating drum (67), a second motor (66) is fixedly connected to the axis of the rotating drum (67), and a water inlet pipe (69) is fixedly connected to the top of the filtering and separation box (2).

3. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 2, characterized in that: A third motor (611) is fixedly connected to the surface of the filtering and separating housing (2); a first pipe (64) is fixedly connected to the interior of the third motor (611) via an output shaft; a backwash nozzle (62) is fixedly connected to the surface of the first pipe (64); a flushing water inlet pipe (63) is also fixedly connected to the surface of the filtering and separating housing (2); and the flushing water inlet pipe (63) is fixedly connected to the surface of the filtering and separating housing (2).

4. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 3, characterized in that: A filter plate (65) is fixedly connected to the interior of the filtering and separating box (2), and a connecting pipe (610) is fixedly connected to the bottom of the filtering and separating box (2). A first motor (61) is fixedly connected to the surface of the filtering and separating box (2), and a first rotating shaft (68) is fixedly connected to the interior of the first motor (61) via an output shaft. A groove is provided on the surface of the filtering and separating box (2), and the impurity collection groove (3) is arranged below the groove provided in the filtering and separating box (2).

5. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 4, characterized in that: The uniform stirring mechanism (7) comprises a fourth motor (71), the fourth motor (71) being fixedly connected to the top of the reaction tank (1), the fourth motor (71) being rotatably connected to a fourth rotating shaft (710) inside, the surface of the fourth rotating shaft (710) being fixedly connected to a first rotating block (72), the bottom of the first rotating block (72) being fixedly connected to a connecting shaft (718), and the bottom of the connecting shaft (718) being fixedly connected to a second rotating block (73).

6. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 5, characterized in that: A first fixed block (74) is fixedly connected to the surface of the first rotating block (72), the number of the first fixed blocks (74) is three, and the three first fixed blocks (74) are evenly distributed about the axis of the first rotating block (72), a double-headed motor (75) is fixedly connected inside the first fixed block (74), one end of the double-headed motor (75) is rotatably connected to a second rotating shaft (76), the surface of the second rotating shaft (76) is fixedly connected to a second spoiler (79), the other end of the double-headed motor (75) is rotatably connected to a third rotating shaft (77), and the surface of the third rotating shaft (77) is fixedly connected to a first spoiler (78).

7. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 6, characterized in that: An aeration device (712) is fixedly connected inside the second rotating block (73), a second pipe (713) is fixedly connected to the top of the aeration device (712), a third pipe (714) is fixedly connected to the surface of the second pipe (713), the number of the third pipes (714) is six, and the six third pipes (714) are evenly distributed about the axis of the second rotating block (73), and an air outlet pipe (715) is fixedly connected to the surface of the third pipe (714).

8. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 7, characterized in that: The surface of the second rotating block (73) is fixedly connected to an arc-shaped spoiler (711) via a fixing rod, the number of the arc-shaped spoiler (711) is six, the six arc-shaped spoilers (711) are evenly distributed about the axis of the second rotating block (73), the arc-shaped spoiler (711) and the third pipe (714) are staggeredly distributed about the axis of the second rotating block (73), the bottom of the reaction tank (1) is fixedly connected to a water outlet pipe (716), and the surface of the water outlet pipe (716) is fixedly connected to an electromagnetic control valve (717).

9. The high-efficiency biological treatment device for landfill leachate using aerobic biological treatment according to claim 8, characterized in that: The biological sludge collection mechanism (8) comprises a collection tank (81), the collection tank (81) being movably connected to the interior of the reaction tank (1), a handle (83) being fixedly connected to the surface of the collection tank (81), and a microfiltration membrane (82) being fixedly connected to the interior of the reaction tank (1).

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