Sewage treatment device

Abstract

The utility model discloses a sewage treatment device which comprises a base, a filtering device is fixedly connected to a second support on the front side of the upper portion of the base, a sewage pumping device is arranged in front of the filtering device, the output end of the sewage pumping device is fixedly connected with the filtering device, a bleaching device is arranged on the rear side of the filtering device, and the bleaching device is fixedly connected with the filtering device. A sterilization device is arranged on the rear side of the bleaching device, a filtering layer in the filtering device can ascend to a barrel opening through an arranged lifting mechanism, cleaning and activated carbon replacement are convenient, a stirring mechanism and a bleaching agent spraying device in the bleaching device can achieve stirring while spraying, bleaching agents are sprayed more evenly, fusion is faster, and the bleaching effect is better. The sterilization device can pump water to the upper portion through the water pumping device, then the water flows to the bottom along the spiral baffle and circularly operates, so that when sewage completely flows into the sterilization device, the irradiation time of ultraviolet sterilization lamps of all the sewage is basically consistent, and the irradiation range of the ultraviolet sterilization lamps to the sewage is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device. Background Technique

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging it into a certain water body or reusing it. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical care, and catering, and is also increasingly entering the daily lives of ordinary people.

[0003] After the existing sewage treatment device filters the sewage in the first step, since the filter layer is fixed inside the device, it is very difficult to clean the impurities filtered on the filter layer. When bleaching the sewage, the bleaching time is long and the effect is poor due to uneven dosing of the bleaching agent. Finally, when sterilizing, since the water slowly rises from bottom to top, the ultraviolet irradiation time of the water above and below is uneven, resulting in low sterilization efficiency and poor effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sewage treatment device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sewage treatment device, including a base, a second bracket is fixedly connected to the front side above the base, a first bracket is fixedly connected to the middle above the base, a filtering device is fixedly connected above the second bracket, a water inlet is opened above the front side of the filtering device, a sewage pump is arranged in front of the filtering device, the output end and the input end of the sewage pump are fixedly connected with sewage pipes, and the other end of the sewage pipe fixedly connected to the output end of the sewage pump is fixedly connected to the water inlet opened above the front side of the filtering device. A bleaching device is arranged at the rear side of the filtering device, a bleaching agent storage barrel is fixedly connected to the front side above the bleaching device, and a sterilizing device is arranged at the rear side of the bleaching device.

[0006] Preferably, the filtering device includes a filtering barrel, the lower surface of the filtering barrel is fixedly connected to the second bracket, two filtering layers are movably connected inside the filtering barrel, a support rod is arranged on the opposite surfaces of the two filtering layers for fixation, activated carbon is filled inside the two filtering layers, a screw rod is fixedly connected to the upper right side above the filtering layer, an L-shaped bottom plate one is fixedly connected to the upper part of the convex part on the right side of the filtering barrel, a motor one is fixedly connected to the right side of the L-shaped bottom plate one, the output shaft of the motor one penetrates through the L-shaped bottom plate one and is fixedly connected to a vertical bevel gear one, a horizontal bevel gear one is meshed with the left side of the vertical bevel gear one, the horizontal bevel gear one is rotatably connected to the upper surface of the L-shaped bottom plate one in the horizontal direction, a nut is fixedly connected to the upper part of the horizontal bevel gear one, the nut is threadedly connected to the screw rod, and a water delivery pipe one is fixedly connected to the rear side below the filtering barrel.

[0007] Preferably, the bleaching device includes a bleaching barrel, the lower surface of the bleaching barrel is fixedly connected to the first bracket, a water inlet is opened at the lower part of the front side of the bleaching barrel, the water inlet is fixedly connected to the rear end of the water delivery pipe one, an L-shaped bottom plate two is fixedly connected to the middle part above the bleaching barrel, a motor two is fixedly connected to the right side of the L-shaped bottom plate two, the output shaft of the motor two penetrates through the L-shaped bottom plate two and is fixedly connected to a vertical bevel gear two, a horizontal bevel gear two is meshed with the left side of the vertical bevel gear two, the horizontal bevel gear two is rotatably connected to the upper surface of the L-shaped bottom plate two in the horizontal direction, a stirring rod is fixedly connected to the lower part of the horizontal bevel gear two, the upper end of the stirring rod penetrates above the horizontal bevel gear two and is hollow inside, three paddle blades are fixedly connected to the outer surface of the stirring rod, and a plurality of high-pressure spray nozzles are fixedly connected to the outer surface of the stirring rod near the middle of the two paddle blades.

[0008] Preferably, a pressure pump is fixedly connected to the front side of the bleaching agent storage barrel and above the bleaching barrel, both the input end and the output end of the pressure pump are fixedly connected with medicine delivery pipes, the other end of the medicine delivery pipe fixedly connected to the input end of the pressure pump is fixedly connected to the medicine outlet opened at the lower left side of the bleaching agent storage barrel, the other end of the medicine delivery pipe fixedly connected to the output end of the pressure pump is rotatably connected to the upper end of the stirring rod, a water valve one is fixedly connected to the lower part of the rear side of the bleaching barrel, and a water delivery pipe two is fixedly connected to the rear end of the water valve one.

[0009] Preferably, the sterilization device includes a sterilization barrel, a water inlet is opened at the lower part of the front side of the sterilization barrel, the water inlet is fixedly connected to the rear end of the water delivery pipe two, a barrel cover is threadedly connected to the upper part of the sterilization barrel, a battery is fixedly connected to the upper part of the barrel cover, an ultraviolet sterilization lamp is fixedly connected to the lower part of the barrel cover, the output end of the battery is electrically connected to the input end of the ultraviolet sterilization lamp, and a spiral partition is fixedly connected to the inside of the sterilization barrel.

[0010] Preferably, an L-shaped water pipe is fixedly connected to the lower part at the rear side of the sterilization barrel. The upper end of the vertical part of the L-shaped water pipe is fixedly connected with a water pump. The output end of the water pump is fixedly connected with a three-way pipe. The other two ports of the three-way pipe are respectively fixedly connected with a water valve three and a water valve two. One end of the water valve two far away from the water pump penetrates into the sterilization barrel and is fixedly connected, and one end of the water valve three far away from the water pump is fixedly connected with an external water outlet pipe.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For the filtering device of the sewage treatment device, the filter layer inside it can rise to the barrel mouth through the arranged lifting mechanism, which can more conveniently clean the impurities filtered on the surface of the filter layer and replace the filled activated carbon.

[0013] 2. A stirring mechanism is arranged inside the bleaching device of the sewage treatment device. The inside of the stirring rod is hollow. The bleaching agent is sprayed into the inside of the stirring rod through the bleaching agent spraying device, and then while spraying the medicine and stirring is realized through the high-pressure nozzle, so that the bleaching agent is sprayed more evenly and fused faster, improving the bleaching efficiency. A spiral baffle is arranged inside the sterilization device of this equipment. While conveying water forward through the water pumping device, the water can be pumped to the upper part, and then flow to the bottom along the spiral baffle and circulate. When all the sewage completely flows into the sterilization device, the irradiation time of all the sewage by the ultraviolet germicidal lamp is basically the same and the irradiation range of the ultraviolet germicidal lamp on the sewage is increased, improving the sterilization effect. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present utility model;

[0015] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model;

[0016] Figure 3 It is a schematic structural diagram of the filtering device of the present utility model;

[0017] Figure 4 It is a schematic structural diagram of the bleaching device of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the sterilization device of the present utility model.

[0019] In the figure: 1, base; 2, sewage pumping pump; 3, sewage pumping pipe; 4, filtering device; 5, bleach placing barrel; 6, bleaching device; 7, sterilizing device; 8, support one; 9, support two; 41, filtering barrel; 42, motor one; 43, vertical bevel gear one; 44, nut; 45, horizontal bevel gear one; 46, screw rod; 47, filtering layer; 48, water delivery pipe one; 61, bleaching barrel; 62, medicine delivery pipe; 63, pressurizing pump; 64, motor two; 65, vertical bevel gear two; 66, stirring rod; 661, high-pressure nozzle; 662, paddle; 67, horizontal bevel gear two; 68, water valve one; 69, water delivery pipe two; 71, sterilizing barrel; 72, barrel cover; 73, battery; 74, water valve two; 75, water valve three; 76, three-way pipe; 77, ultraviolet germicidal lamp; 78, water pumping pump; 79, spiral partition board. Specific implementation mode

[0020] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1-2 , the present invention provides a technical solution: a sewage treatment device, including a base 1, a support two 9 is fixedly connected to the front side above the base 1, a support one 8 is fixedly connected to the middle above the base 1, a filtering device 4 is fixedly connected above the support two 9, a water inlet is opened above the front side of the filtering device 4, a sewage pumping pump 2 is arranged in front of the filtering device 4, the output end and the input end of the sewage pumping pump 2 are both fixedly connected with a sewage pumping pipe 3, and the other end of the sewage pumping pipe 3 fixedly connected to the output end of the sewage pumping pump 2 is fixedly connected to the water inlet opened above the front side of the filtering device 4. A bleaching device 6 is arranged behind the filtering device 4, a bleach placing barrel 5 is fixedly connected to the front side above the bleaching device 6, and a sterilizing device 7 is arranged behind the bleaching device 6.

[0022] Please refer to Figure 3, the filtering device 4 includes a filtering barrel 41. The lower surface of the filtering barrel 41 is fixedly connected to the second support 9. Two filtering layers 47 are movably connected inside the filtering barrel 41. A support rod is arranged on the opposite surfaces of the two filtering layers 47 for fixation. Activated carbon is filled inside the two filtering layers 47. A screw rod 46 is fixedly connected to the upper right side above the filtering layer 47. Above the protruding part on the right side of the filtering barrel 41, a first L-shaped bottom plate is fixedly connected. A first motor 42 is fixedly connected to the right side of the first L-shaped bottom plate. The output shaft of the first motor 42 penetrates through the first L-shaped bottom plate and is fixedly connected to a first vertical bevel gear 43. A first horizontal bevel gear 45 is meshed with the left side of the first vertical bevel gear 43. The first horizontal bevel gear 45 is rotatably connected to the upper surface of the first L-shaped bottom plate in the horizontal direction. A nut 44 is fixedly connected above the first horizontal bevel gear 45. The nut 44 is threadedly connected to the screw rod 46. A first water delivery pipe 48 is fixedly connected to the rear side below the filtering barrel 41. The sewage is pumped into the filtering barrel 41 through the sewage pump 2 and the sewage pipe 3. Then, the impurities in the sewage are filtered on the surface of the filtering layer 47 through the filtering layer 47. After the filtering is completed, the first motor 42 is driven to rotate the first vertical bevel gear 43, and then the first horizontal bevel gear 45 is driven to rotate in the reverse direction through gear meshing. Since the nut 44 is connected to the first horizontal bevel gear 45, when it rotates, the nut 44 also rotates in the same direction. The nut 44 and the screw rod 46 are in threaded cooperation, so that the screw rod 46 drives the filtering layer 47 to move up and down. When the filtering layer 47 rises to the barrel opening, the impurities on the surface can be easily cleaned and the activated carbon filled inside the filtering layer 47 can be replaced. The filtered sewage flows into the bleaching barrel 61 through the first water delivery pipe 48.

[0023] Please refer to Figure 4, the bleaching device 6 includes a bleaching barrel 61. The lower surface of the bleaching barrel 61 is fixedly connected to the first bracket 8. An inlet is provided below the front side of the bleaching barrel 61, and the inlet is fixedly connected to the rear end of the first water delivery pipe 48. In the middle above the bleaching barrel 61, a second L-shaped bottom plate is fixedly connected. On the right side of the second L-shaped bottom plate, a second motor 64 is fixedly connected. The output shaft of the second motor 64 penetrates through the second L-shaped bottom plate and is fixedly connected to a vertical bevel gear 65. On the left side of the vertical bevel gear 65, a horizontal bevel gear 67 is engaged. The horizontal bevel gear 67 is rotatably connected to the upper surface of the second L-shaped bottom plate in the horizontal direction. Below the horizontal bevel gear 67, a stirring rod 66 is fixedly connected. The upper end of the stirring rod 66 penetrates above the horizontal bevel gear 67 and is hollow inside. On the outer surface of the stirring rod 66, three paddle blades 662 are fixedly connected. Near the middle between two paddle blades 662 on the outer surface of the stirring rod 66, a number of high-pressure nozzles 661 are fixedly connected. In the front side of the bleaching agent storage barrel 5 and above the bleaching barrel 61, a pressure pump 63 is fixedly connected. Both the input end and the output end of the pressure pump 63 are fixedly connected with medicine delivery pipes 62. The other end of the medicine delivery pipe 62 fixedly connected to the input end of the pressure pump 63 is fixedly connected to the medicine outlet provided below the left side of the bleaching agent storage barrel 5. The other end of the medicine delivery pipe 62 fixedly connected to the output end of the pressure pump 63 is rotatably connected to the upper end of the stirring rod 66. Below the rear side of the bleaching barrel 61, a second water delivery pipe 69 is fixedly connected. A first water valve 68 is fixedly connected to the part of the second water delivery pipe 69 close to the bleaching barrel 61. By driving the vertical bevel gear 65 to rotate through the second motor 64, and then driving the horizontal bevel gear 67 to rotate in the reverse direction through gear engagement. Since the stirring rod 66 is fixedly connected to the horizontal bevel gear 67, when it rotates, the stirring rod 66 also rotates in the same direction. The three paddle blades 662 provided on the surface can stir the sewage. When the stirring rod 66 stirs the sewage, the pressure pump 63 extracts the bleaching agent from the bleaching agent storage barrel through the medicine delivery pipe 62, pressurizes and transports it to the hollow part inside the stirring rod 66, and then sprays the bleaching agent into the sewage through the high-pressure nozzles 661, realizing spraying the bleaching agent while stirring the sewage, making the spraying of the bleaching agent more uniform and the fusion faster, improving the bleaching efficiency. After the bleaching is completed, the first water valve 68 can be opened to let the sewage flow into the sterilization device 7.

[0024] Please refer to Figure 5, the sterilization device 7 includes a sterilization barrel 71. An inlet is provided below the front side of the sterilization barrel 71. The inlet is fixedly connected to the rear end of the second water delivery pipe 69. A barrel cover 72 is threadedly connected above the sterilization barrel 71. A battery 73 is fixedly connected above the barrel cover 72. An ultraviolet sterilization lamp 77 is fixedly connected below the barrel cover 72. The output end of the battery 73 is electrically connected to the input end of the ultraviolet sterilization lamp 77. A spiral partition 79 is fixedly connected inside the sterilization barrel 71. An L-shaped water pipe is fixedly connected below the rear side of the sterilization barrel 71. The upper end of the vertical part of the L-shaped water pipe is fixedly connected to a water pump 78. The output end of the water pump 78 is fixedly connected to a three-way pipe 76. The other two ports of the three-way pipe 76 are respectively fixedly connected to a third water valve 75 and a second water valve 74. One end of the second water valve 74 away from the water pump 78 penetrates into the sterilization barrel 71 and is fixedly connected. One end of the third water valve 75 away from the water pump 78 is fixedly connected to an external water outlet pipe. While the sewage flows into the sterilization barrel 71, the battery 73 supplies power to turn on the ultraviolet sterilization lamp 77. The third water valve 75 on the three-way pipe 76 is closed and the second water valve 74 is opened. The water pump 78 pumps out the flowing sewage through the L-shaped pipe and sends the sewage back into the sterilization barrel 71 through the port of the three-way pipe 76 fixedly connected to the second water valve 74. The sewage flows around the ultraviolet sterilization lamp 77 through the spiral partition 79 and reaches the bottom for cyclic operation. When all the sewage completely flows into the sterilization barrel 71, the irradiation time of the ultraviolet sterilization lamp for all the sewage is basically the same, and the irradiation range of the ultraviolet sterilization lamp on the sewage is increased, improving the sterilization effect. When it is necessary to clean the ultraviolet sterilization lamp 77, the barrel cover 72 can be rotated to take out the ultraviolet sterilization lamp 77, and it can be restored after cleaning. After sterilization is completed, close the second water valve 74 and open the third water valve 75, and the treated sewage can be discharged through the externally connected pipeline.

[0025] Working principle: First, the sewage is pumped into the filtering barrel 41 by the sewage pump 2 and the sewage pipe 3. Then, the impurities in the sewage are filtered on the surface of the filter layer 47 through the filter layer 47. After the filtration is completed, the first motor 42 drives the vertical bevel gear 43 to rotate. Then, through gear meshing, the horizontal bevel gear 45 is driven to rotate in the reverse direction. Since the nut 44 is connected to the horizontal bevel gear 45, when it rotates, the nut 44 also rotates in the same direction. The nut 44 and the screw 46 are in threaded cooperation, so that the screw 46 drives the filter layer 47 to move up and down. When the filter layer 47 rises to the barrel opening, the impurities on the surface can be easily cleaned and the activated carbon filled inside the filter layer 47 can be replaced. The filtered sewage flows into the bleaching barrel 61 through the first water delivery pipe 48. The second motor 64 drives the vertical bevel gear 65 to rotate. Through gear meshing, the horizontal bevel gear 67 is driven to rotate in the reverse direction. Since the stirring rod 66 is fixedly connected to the horizontal bevel gear 67, when it rotates, the stirring rod 66 also rotates in the same direction. The sewage can be stirred through the three paddle blades 662 arranged on the surface. When the stirring rod 66 stirs the sewage, the pressure pump 63 pumps out the bleaching agent from the bleaching agent storage barrel through the medicine delivery pipe 62 and pressurizes and conveys it to the hollow part inside the stirring rod 66, and then sprays the bleaching agent into the sewage through the high-pressure nozzle 661, realizing spraying the bleaching agent while stirring the sewage, making the bleaching agent spray more evenly and blend faster, and improving the bleaching efficiency. After the bleaching is completed, the first water valve 68 can be opened to let the sewage flow into the sterilization device 7. While the sewage flows into the sterilization barrel 71, the battery 73 supplies power to light up the ultraviolet sterilization lamp 77. The third water valve 75 on the three-way pipe 76 is closed and the second water valve 74 is opened. The water pump 78 pumps out the flowing sewage through the L-shaped pipe and sends the sewage back into the sterilization barrel 71 through the port of the three-way pipe 76 fixedly connected to the second water valve 74. The sewage flows around the ultraviolet sterilization lamp 77 through the spiral partition 79 to the bottom and circulates. When all the sewage completely flows into the sterilization barrel 71, the irradiation time of all the sewage by the ultraviolet sterilization lamp is basically the same and the irradiation range of the ultraviolet sterilization lamp on the sewage is increased, improving the sterilization effect. When the ultraviolet sterilization lamp 77 needs to be cleaned, the ultraviolet sterilization lamp 77 can be taken out by rotating the barrel cover 72, and it can be restored after cleaning. After the sterilization is completed, the second water valve 74 is closed and the third water valve 75 is opened, and the treated sewage can be discharged through the externally connected pipeline.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device, comprising a base (1), characterized in that: A bracket 2 (9) is fixedly connected to the front side above the base (1), a bracket 1 (8) is fixedly connected to the middle part above the base (1), a filter device (4) is fixedly connected to the top of the bracket 2 (9), a water inlet is provided above the front side of the filter device (4), a sewage pump (2) is provided in front of the filter device (4), both the output end and the input end of the sewage pump (2) are fixedly connected to a sewage suction pipe (3), the other end of the sewage suction pipe (3) fixedly connected to the output end of the sewage pump (2) is fixedly connected to the water inlet provided above the front side of the filter device (4), a bleaching device (6) is provided on the rear side of the filter device (4), a bleaching agent placement bucket (5) is fixedly connected to the front side above the bleaching device (6), and a sterilizing device (7) is provided on the rear side of the bleaching device (6).

2. A sewage treatment device according to claim 1, characterized in that: The filtering device (4) comprises a filtering barrel (41), the lower surface of the filtering barrel (41) being fixedly connected to a second bracket (9), the filtering barrel (41) being internally movably connected to two filtering layers (47), the two filtering layers (47) being fixedly provided with support rods on opposite sides thereof, the two filtering layers (47) being filled with activated carbon, the right side above the filtering layers (47) being fixedly connected to a screw rod (46), the upper side of a raised portion on the right side of the filtering barrel (41) being fixedly connected to an L-shaped bottom plate 1, the right side of the L-shaped bottom plate 1 being fixedly connected to A motor (42) is provided, the output shaft of the motor (42) passes through an L-shaped bottom plate and is fixedly connected to a vertical bevel gear (43), a horizontal bevel gear (45) is meshed on the left side of the vertical bevel gear (43), the horizontal bevel gear (45) is rotatably connected to the upper surface of the L-shaped bottom plate in the horizontal direction, a nut (44) is fixedly connected above the horizontal bevel gear (45), the nut (44) is threadedly connected to a screw (46), and a water pipe (48) is fixedly connected to the rear side below the filter barrel (41).

3. A sewage treatment device according to claim 1, characterized in that: The bleaching device (6) comprises a bleaching barrel (61), the lower surface of the bleaching barrel (61) is fixedly connected to a bracket (8), a water inlet is provided at the lower front side of the bleaching barrel (61), the water inlet is fixedly connected to the rear end of a water delivery pipe (48), an L-shaped bottom plate (2) is fixedly connected to the middle part above the bleaching barrel (61), a motor (2) (64) is fixedly connected to the right side of the L-shaped bottom plate (2), an output shaft of the motor (64) passes through the L-shaped bottom plate (2) and is fixedly connected to a vertical bevel gear (2) (65), and a left side of the vertical bevel gear (2) (65) is fixedly connected to the output shaft of the motor (64). A second horizontal bevel gear (67) is meshed with the second horizontal bevel gear (67), and the second horizontal bevel gear (67) is rotatably connected to the upper surface of the second L-shaped bottom plate in the horizontal direction. A stirring rod (66) is fixedly connected below the second horizontal bevel gear (67), and the upper end of the stirring rod (66) passes through the top of the second horizontal bevel gear (67). The stirring rod (66) is hollow inside, and three blades (662) are fixedly connected to the outer surface of the stirring rod (66). A plurality of high-pressure nozzles (661) are fixedly connected to the middle of the outer surface of the stirring rod (66) near two blades (662).

4. A sewage treatment device according to claim 3, characterized in that: A pressure pump (63) is fixedly connected to the front side of the bleaching agent placement barrel (5) and the top of the bleaching barrel (61); the input end and the output end of the pressure pump (63) are both fixedly connected to a drug delivery tube (62); the other end of the drug delivery tube (62) fixedly connected to the input end of the pressure pump (63) is fixedly connected to a drug outlet opened at the lower left side of the bleaching agent placement barrel (5); the other end of the drug delivery tube (62) fixedly connected to the output end of the pressure pump (63) is rotatably connected to the upper end of a stirring rod (66); a water valve 1 (68) is fixedly connected to the lower rear side of the bleaching barrel (61); and a water delivery tube 2 (69) is fixedly connected to the rear end of the water valve 1 (68).

5. A sewage treatment device according to claim 1, characterized in that: The sterilization device (7) comprises a sterilization barrel (71), a water inlet is provided at the lower front side of the sterilization barrel (71), the water inlet is fixedly connected to the rear end of the second water supply pipe (69), a barrel cover (72) is threadedly connected to the upper side of the sterilization barrel (71), a battery (73) is fixedly connected to the upper side of the barrel cover (72), an ultraviolet sterilization lamp (77) is fixedly connected to the lower side of the barrel cover (72), an output end of the battery (73) is electrically connected to an input end of the ultraviolet sterilization lamp (77), and a spiral partition (79) is fixedly connected to the interior of the sterilization barrel (71).

6. A sewage treatment device according to claim 5, characterized in that: An L-shaped water pipe is fixedly connected to the lower rear side of the sterilization barrel (71), and a water pump (78) is fixedly connected to the upper end of the vertical portion of the L-shaped water pipe. The output end of the water pump (78) is fixedly connected to a three-way pipe (76), and the other two openings of the three-way pipe (76) are respectively fixedly connected to a water valve three (75) and a water valve two (74). The end of the water valve two (74) away from the water pump (78) passes through the interior of the sterilization barrel (71) and is fixedly connected thereto, and the end of the water valve three (75) away from the water pump (78) is fixedly connected to an external water outlet pipe.

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