Septic tank treatment device capable of degrading oil stains

Abstract

The invention discloses a septic tank treatment device capable of degrading greasy dirt, and relates to the field of septic tank treatment.The septic tank treatment device comprises a tank body, a separation mechanism used for separating greasy dirt is arranged at the rear end of the right side of the tank body, a filtering mechanism used for filtering oil liquid is arranged at the front end of the right side of the tank body, and a dirt inlet mechanism is arranged in the tank body; one side of the pool body is connected with a degradation pool, the degradation pool is used for degrading oil stains, the separation mechanism comprises a first-stage separation tank, the first-stage separation tank is arranged on one side of the pool body, one side of the first-stage separation tank is communicated with a second-stage separation tank, and heating rods are fixedly connected to the outer sides of the tops of the first-stage separation tank and the second-stage separation tank; ultrasonic vibrators are connected to the middles of the tops of the first-stage separation tank and the second-stage separation tank, sewage pumps are arranged in the first-stage separation tank and the second-stage separation tank and communicate with drainage pipes, drainage valves are installed on the outer walls of the drainage pipes, and an oil drainage pipe is connected to the upper end of the outer wall of the first-stage separation tank.

Description

Technical Field

[0001] This invention relates to the field of septic tank treatment, specifically a septic tank treatment device that can degrade oily substances. Background Technology

[0002] A septic tank is a small-scale on-site sewage treatment facility that uses sedimentation and anaerobic fermentation principles to treat domestic sewage. It is usually made of reinforced concrete or fiberglass and is divided into a sedimentation zone, an anaerobic fermentation zone, and a clarification zone.

[0003] However, if septic tank effluent is discharged directly without treatment, it will not only cause eutrophication of surface water and groundwater, leading to ecological problems such as blackening and foul odor of water bodies and rampant algae growth, but may also spread diseases through drinking water and contact, endangering human health. At the same time, untreated septic tank effluent can also clog subsequent drainage pipe networks, increasing the operating load and treatment costs of urban sewage treatment plants. Therefore, septic tank effluent must be further treated to meet the requirements of environmental protection and safe use.

[0004] Chinese patent discloses a septic tank wastewater treatment device and its application (publication number CN118495734B). The device includes an inlet zone, a wastewater treatment unit, and an outlet zone. The wastewater treatment unit, from bottom to top, comprises a support layer, a mixed packing layer, and a surface layer. Wetland plants are planted above the wastewater treatment unit. The support layer is filled with rock, the mixed packing layer with pyrolusite and pyrite, and the surface layer with biochar. This invention employs a bottom-inlet, top-outlet inlet method to maintain an anaerobic environment in the treatment device, achieving efficient removal of organic matter, ammonia nitrogen, phosphate, and dissolved methane from the septic tank effluent. This further alleviates clogging of the treatment device and prevents the generation of endogenous methane, while also preventing secondary pollution caused by heavy metal leakage.

[0005] The above-mentioned solutions can only treat and alleviate organic matter, ammonia nitrogen, phosphate, and dissolved methane in the septic tank effluent. They cannot degrade the oil in the septic tank. A large amount of grease will float on the surface of the sewage, forming an oil film. On the one hand, this will isolate the air from the sewage, inhibit the activity of anaerobic microorganisms, and directly weaken the septic tank's decomposition efficiency of organic sludge, leading to faster sludge accumulation, reduced effective tank volume, and shorter septic tank cleaning cycles. On the other hand, the grease will enter the subsequent pipe network with the effluent. In low-temperature environments, it is easy to solidify and adsorb impurities on the pipe walls, causing pipe blockage and leading to sewage backflow, road spills, and other problems. Summary of the Invention

[0006] This invention provides a septic tank treatment device that can degrade oil, solving the problem that septic tanks cannot clean the oil inside, which leads to the inhibition of anaerobic microorganisms, weakens the decomposition efficiency of organic sludge in septic tanks, and causes sludge to accumulate faster and cause blockage.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A septic tank treatment device for degradable oil pollution includes a tank body, a separation mechanism for separating oil pollution is provided on the right rear side of the tank body, a filtration mechanism for filtering oil is provided on the right front side of the tank body, a sludge inlet mechanism is provided inside the tank body, and a degradation tank is connected to one side of the tank body for degrading oil pollution. The separation mechanism includes a primary separation tank located on one side of the pool. A secondary separation tank is connected to one side of the primary separation tank. Heating rods are fixedly connected to the outer sides of the tops of both the primary and secondary separation tanks. An ultrasonic transducer is connected to the middle of the top of both the primary and secondary separation tanks. Both the primary and secondary separation tanks are equipped with sewage pumps connected to drain pipes. Drain valves are installed on the outer walls of the drain pipes. An oil drain pipe is connected to the upper end of the outer wall of the primary separation tank. One side of the oil drain pipe is connected to the outer wall of the secondary separation tank. An oil drain valve is installed on the outer wall of the oil drain pipe. The other end of the oil drain pipe is located at the top of the degradation pool. The primary separation tank is equipped with a cleaning mechanism for cleaning the inner wall of the primary separation tank. The ultrasonic transducers in the primary and secondary separation tanks can separate the internal oil stains, and the secondary separation ensures better separation results.

[0008] As a preferred embodiment of the present invention, the cleaning mechanism includes a mixing tank located on the outer wall of the primary separation tank. One end of the mixing tank is connected to a connecting pipe, and a cleaning valve is installed on the outer wall of the connecting pipe. Two identical cleaning discs are connected to one side of the connecting pipe, and multiple wide-angle nozzles are connected to the outer wall of the cleaning discs for water spraying and cleaning. The top of the mixing tank is connected to a water inlet pipe and a liquid inlet pipe. By adding cleaning liquid and cleaning through the wide-angle nozzles, residual oil on the tank wall can be cleaned.

[0009] As a preferred embodiment of the present invention, the filtration mechanism includes a filter tube located outside the primary separation tank. An annular filter plate is installed inside the filter tube, and the outer wall of the annular filter plate has multiple holes for filtration. A tank cover is installed on the top of the filter tube, and a conical funnel is connected to the bottom of the filter tube. A return sludge pipe is connected to the bottom of the conical funnel, and a return sludge valve is installed on the outer wall of the return sludge pipe. This allows for further filtration of the oil sludge that needs to be separated, achieving the effect of solid-liquid separation.

[0010] As a preferred embodiment of the present invention, the sludge inlet mechanism includes a sludge inlet disc, which is located in the middle of the interior of the pool. The outer wall of the sludge inlet disc has multiple elongated holes. The bottom of the sludge inlet disc is connected to a connecting pipe II. A support rod for supporting the connecting pipe II is fixed to the upper end of the outer wall of the connecting pipe II. A fixing clamp I is fixed to the lower end of the outer wall of the connecting pipe II. The bottoms of the support rod and the fixing clamp I are both fixedly connected to the bottom of the pool. The small holes on the sludge inlet disc can perform preliminary filtration of the incoming oil and intercept large particles.

[0011] As a preferred embodiment of the present invention, the other end of the connecting pipe 2 is connected to a sewage pipe, a sewage valve is installed on the outer wall of the sewage pipe, two identical fixing clamps are installed on the outer wall of the sewage pipe and connected to the outside of the pool body, the other end of the sewage pipe is connected to a lifting pipe, a water pump 1 is installed on the top of the lifting pipe, and the other end of the lifting pipe is connected to a filter pipe, so that the oil can be drawn into the filter pipe for filtration.

[0012] As a preferred embodiment of the present invention, the lower end of the outer wall of the filter tube is connected to a connecting secondary pipe, one side of the outer wall of the connecting secondary pipe is connected to a connecting main pipe, the outer wall of the connecting main pipe is provided with a main pipe valve, a second water pump is installed on the top of the connecting main pipe, and a secondary pipe valve is provided on the other side of the outer wall of the connecting secondary pipe. Both the connecting secondary pipe and the connecting main pipe are connected to the primary separation tank. When the second water pump malfunctions, the oil can flow into the primary separation tank through the connecting secondary pipe by opening the secondary pipe valve.

[0013] As a preferred embodiment of the present invention, the bottom of both the primary separation tank and the secondary separation tank are fixedly connected to a support base, and one side of each support base is fixedly connected to a plurality of connecting bridges, the other side of each connecting bridge being fixedly connected to the tank body to provide stable support for the separation tank.

[0014] As a preferred embodiment of the present invention, an ultrasonic generator for generating ultrasonic waves is installed on the outer side of the top of the support base. The top of the ultrasonic generator is connected to two identical output lines, and the other end of the two output lines is connected to two ultrasonic transducers respectively. The ultrasonic waves generated by the ultrasonic generator are transmitted to the ultrasonic transducers, and the ultrasonic transducers perform efficient oil separation in the separation tank.

[0015] As a preferred embodiment of the present invention, a second water inlet pipe is connected to one side of the pool body. The second water inlet pipe is used to inject water into the pool body. A water inlet valve is installed on the outer wall of the second water inlet pipe. When the liquid level in the pool body is less than the height of the sludge tray, water can be injected into the pool body through the second water inlet pipe.

[0016] As a preferred embodiment of the present invention, the front side of the pool is connected to a septic tank connecting pipe, which is used to collect sewage in the pool.

[0017] The present invention has the following advantages: 1. Ultrasonic waves emitted by an ultrasonic transducer further separate the oil and wastewater. A heating rod at the top of the primary separation tank continuously heats the tank, preventing the oil from solidifying. The separated wastewater then flows into a secondary separation tank for a second separation in the same manner. Next, the drain valve is opened, allowing the separated oil from the primary and secondary separation tanks to flow through a drain pipe into a degradation tank separated from the main tank. There, the oil is degraded, achieving the separation and degradation of oil from wastewater, thus increasing the degradation speed and ensuring more complete degradation.

[0018] 2. Open the cleaning valve, and the cleaning water will flow through the connecting pipe into the cleaning plate inside the primary and secondary separation tanks. The water will then be sprayed into the tank through wide-angle nozzles around the cleaning plate. Because the wide-angle nozzles are wide-angle, the cleaning water is sprayed at a wider angle. When the cleaning liquid comes into contact with the tank wall, it will carry the oil adsorbed on the tank wall down with it, thus cleaning the tank wall after separation. Attached Figure Description

[0019] Figure 1 This is a front view of a septic tank treatment device for biodegradable oil pollution.

[0020] Figure 2 This is a three-dimensional view of the front side of a septic tank treatment device for biodegradable oil pollution.

[0021] Figure 3 This is a schematic diagram of the sludge inlet tray in a septic tank treatment device for biodegradable oil stains.

[0022] Figure 4 This is a structural diagram of a filter tube in a septic tank treatment device for biodegradable oil pollution.

[0023] Figure 5 This is a structurally exploded view of an annular filter plate in a septic tank treatment device for biodegradable oil pollution.

[0024] Figure 6 This is a schematic diagram of the primary separation tank in a septic tank treatment device for biodegradable oil pollution.

[0025] Figure 7 This is a schematic diagram of the main connecting pipe in a septic tank treatment device for biodegradable oil pollution.

[0026] Figure 8 This is a partial structural diagram of a sewage pump in a septic tank treatment device for biodegradable oil pollution.

[0027] Figure 9This is a partial structural diagram of the mixing tank in a septic tank treatment device for biodegradable oil pollution.

[0028] Figure 10 This is a schematic diagram of the ultrasonic generator in a septic tank treatment device for biodegradable oil pollution.

[0029] In the diagram: 1. Tank body; 2. Separation mechanism; 201. Primary separation tank; 202. Heating rod; 203. Ultrasonic transducer; 204. Sewage pump; 205. Drain valve; 206. Drain pipe; 207. Oil drain pipe; 208. Oil drain valve; 209. Secondary separation tank; 3. Cleaning mechanism; 301. Mixing tank; 302. Cleaning valve; 303. Connecting pipe one; 304. Cleaning tray; 305. Wide-angle nozzle; 306. Water inlet pipe one; 307. Liquid inlet pipe; 4. Filtration mechanism; 401. Filter pipe; 402. Annular filter plate; 403. Tank cover; 404. Conical... 405. Funnel; 406. Sewage return pipe; 407. Sewage return valve; 5. Sewage inlet mechanism; 501. Sewage inlet tray; 502. Connecting pipe II; 503. Support rod; 504. Fixing clamp I; 6. Degradation tank; 7. Sewage pipe; 8. Sewage valve; 9. Fixing clamp II; 10. Lifting pipe; 11. Water pump I; 12. Connecting auxiliary pipe; 13. Auxiliary pipe valve; 14. Connecting main pipe; 15. Main pipe valve; 16. Water pump II; 17. Connecting bridge; 18. Ultrasonic generator; 19. Output line; 20. Water inlet pipe II; 21. Water inlet valve; 22. Septic tank connecting pipe; 23. Support base. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Example 1

[0032] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7A septic tank treatment device for degrading oil pollution includes a tank body 1. A separation mechanism 2 for separating oil pollution is located at the rear right side of the tank body 1. A filtration mechanism 4 for filtering oil is located at the front right side of the tank body 1. An inlet mechanism 5 is also provided inside the tank body 1. Furthermore, one side of the tank body 1 is connected to a degradation tank 6, whose main function is to degrade oil pollution. This degradation tank 6 is used to degrade the separated oil pollution by adding biological agents.

[0033] The separation mechanism 2 includes a primary separation tank 201, which is located on one side of the pool body 1. One side of the primary separation tank 201 is connected to a secondary separation tank 209. Heating rods 202 are fixedly connected to the outer top of both the primary and secondary separation tanks 201 and 209. These heating rods 202 ensure that the oil remains at a suitable temperature during the separation process, thereby reducing the probability of oil agglomeration within the tanks and preventing pipe blockage. An ultrasonic transducer 203 is connected to the middle of the top of each of the two separation tanks. Inside both the primary and secondary separation tanks 201 and 209, a wastewater pump 204 is installed, connected to a drain pipe 206. A drain valve 205 is installed on the outer wall of the drain pipe 206, allowing the separated wastewater to be pumped back into the pool body 1 via the drain pipe 206. An oil drain pipe 207 is connected to the upper part of the outer wall of the primary separator 201. One side of the oil drain pipe 207 is connected to the outer wall of the secondary separator 209. An oil drain valve 208 is installed on the outer wall of the oil drain pipe 207, and the other end of the oil drain pipe 207 is located at the top of the degradation tank 6. The upper layer of oil sludge can be discharged into the degradation tank 6 for degradation through the oil drain pipe 207. It is worth mentioning that a cleaning mechanism 3 is also installed inside the primary separator 201. The function of this cleaning mechanism 3 is to perform a comprehensive and effective cleaning of the inner walls of the primary separator 201 and the secondary separator 209. Example 2

[0034] Please see Figure 2 , Figure 9The cleaning mechanism 3 mainly consists of a mixing tank 301, which is installed on the outer wall of the primary separation tank 201 to ensure optimal function. One end of the mixing tank 301 is connected to a connecting pipe 303 via a pipeline. A cleaning valve 302 is installed on the outer wall of the connecting pipe 303, which effectively controls the flow of the cleaning fluid, thereby achieving precise management of the cleaning process. In addition, two identical cleaning discs 304 are connected to one side of the connecting pipe 303. These two cleaning discs 304 are symmetrically distributed to provide a uniform cleaning effect during operation. The outer wall of the cleaning discs 304 is further connected to multiple wide-angle nozzles 305. These wide-angle nozzles 305 have a large spray range and can cover a wider area, thereby efficiently completing the water spraying cleaning task. To ensure the supply of cleaning fluid, two inlet channels are specially provided at the top of the mixing tank 301: a water inlet pipe 306 and a liquid inlet pipe 307. These are used to introduce clean water and cleaning fluid, respectively, thereby providing sufficient resource support for the entire cleaning process. This design not only improves cleaning efficiency but also ensures the stability and reliability of equipment operation, thereby enabling comprehensive and effective cleaning of the inner walls of the primary separation tank 201 and the secondary separation tank 209.

[0035] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5The filtration mechanism 4 mainly consists of a filter pipe 401, which is located on the outside of the primary separation tank 201. Inside the filter pipe 401, an annular filter plate 402 is installed. Multiple rows of holes are formed on the outer wall of this annular filter plate 402, specifically for filtration. A tank cover 403 is installed at the top of the filter pipe 401. The bottom of the filter pipe 401 is connected to a conical funnel 404, which in turn connects to a return sludge pipe 405. A return sludge valve 406 is installed on the outer wall of the return sludge pipe 405. The sludge inlet mechanism 5 includes a sludge inlet disc 501, located in the central area of ​​the tank body 1. Multiple elongated holes are formed on the outer wall of the sludge inlet disc 501 to prevent large particles from entering the oil, thus achieving preliminary filtration of the oil and preventing pipe blockage. The bottom of the sludge inlet tray 501 is connected to the connecting pipe 502. A support rod 503 is fixed to the upper end of the outer wall of the connecting pipe 502 to support it. A fixing clamp 504 is fixed to the lower end of the outer wall of the connecting pipe 502. The bottoms of both the support rod 503 and the fixing clamp 504 are fixedly connected to the bottom of the tank body 1. The other end of the connecting pipe 502 is connected to the sewage pipe 7. A sewage valve 8 is installed on the outer wall of the sewage pipe 7, and two identical fixing clamps 9 are also installed on its outer wall, connecting to the outside of the tank body 1. The other end of the sewage pipe 7 is connected to the lifting pipe 10, which is fixed to the outside of the tank body 1 by the fixing clamps 9. A water pump 11 is installed at the top of the lifting pipe 10, and the other end of the lifting pipe 10 is connected to the filter pipe 401.

[0036] Please see Figure 1 ... Figure 6 , Figure 7 A connecting secondary pipe 12 is connected to the lower end of the outer wall of the filter pipe 401. This connecting secondary pipe 12 is connected to the connecting main pipe 14 on one side of its outer wall. A main pipe valve 15 is installed on the outer wall of the connecting main pipe 14, and a second water pump 16 is installed on the top of the connecting main pipe 14. Meanwhile, a secondary pipe valve 13 is installed on the other side of the outer wall of the connecting secondary pipe 12. When the second water pump 16 malfunctions, the oil can be allowed to flow into the primary separator 201 through the connecting secondary pipe 12 by opening the secondary pipe valve 13. Both the connecting secondary pipe 12 and the connecting main pipe 14 are connected to the primary separator 201. In addition, the bottom of the primary separator 201 and the secondary separator 209 are fixedly connected to the support base 23. Multiple connecting bridges 17 are fixedly connected to one side of each of these support bases 23, and the other side of each of these connecting bridges 17 is fixedly connected to the tank body 1, making the overall connection more stable.

[0037] Please see Figure 1 , Figure 8 , Figure 10 An ultrasonic generator 18 is installed on the outer side of the top of the support base 23. This ultrasonic generator 18 generates high-frequency vibration signals. To ensure that these signals can be effectively transmitted, two identical output lines 19 are evenly connected to the top of the ultrasonic generator 18. The other ends of these two output lines 19 are connected to two independent ultrasonic transducers 203, thereby achieving stable energy transmission and distribution. In addition, a second water inlet pipe 20 is installed on one side of the pool body 1. The main function of this second water inlet pipe 20 is to fill the pool body 1 with water to ensure that the liquid level in the pool body 1 meets the actual needs. A water inlet valve 21 is also installed on the outer wall of the second water inlet pipe 20. By adjusting this valve, the water supply can be flexibly opened or closed. A septic tank connection pipe 22 is also connected to the front of the pool body 1. This septic tank connection pipe 22 is used to centrally divert sewage from other areas into the pool body 1.

[0038] In the implementation of this invention, sewage from the sewer pipe is first introduced into the tank body 1 through the septic tank connecting pipe 22. When the water level is not full, the inlet valve 21 is opened, and water is injected into the tank body 1 through the second inlet pipe 20. When the height of the sludge inlet plate 501 is reached, the oil floating on the upper part of the tank body 1 is introduced into the second connecting pipe 502 through multiple holes on the outer wall of the sludge inlet plate 501. At this time, the first water pump 11 is started and the sewage valve 8 is opened. At this time, the oil in the annular filter plate 402 will flow into the filter pipe 401 through the sewage pipe 7 and the lifting pipe 10.

[0039] When the oil enters the filter pipe 401, the particles in the oil will be intercepted by the annular filter plate 402 on the inner wall of the annular filter plate 402, and the rest of the oil will flow out through the multiple small holes on the outer wall of the annular filter plate 402. At this time, the second water pump 16 is started and the main valve 15 is opened. The filtered oil in the primary separation tank 201 will flow into the interior of the primary separation tank 201 through the connecting main pipe 14. When the second water pump 16 malfunctions, the auxiliary pipe valve 13 is opened, and the oil can still flow into the primary separation tank 201 through the connecting auxiliary pipe 12. At the same time, the return sludge valve 406 is opened periodically, so that the particles inside the annular filter plate 402 will flow back into the tank 1 through the conical funnel 404 and the return sludge pipe 405.

[0040] When the oil enters the primary separator 201, the ultrasonic generator 18 generates ultrasonic waves, which are transmitted to the ultrasonic transducer 203 through the output line 19. The ultrasonic waves emitted by the ultrasonic transducer 203 further separate the oil and wastewater. Since the density of the oil is less than that of the wastewater, the oil will float on the wastewater. At the same time, there is a heating rod 202 at the top of the primary separator 201, which continuously heats the inside of the tank, preventing the oil from solidifying and clumping. Then, the separated wastewater will flow into the secondary separator 209 for secondary separation in the same way. Then, the oil drain valve 208 is opened. At this time, the oil separated in the primary separator 201 and the secondary separator 209 will flow into the degradation tank 6, which is separated from the pool body 1, through the oil drain pipe 207, and be degraded in the degradation tank 6. The wastewater at the bottom will flow back into the pool body 1 through the drain pipe 206. This process separates the oil from the wastewater for degradation, increases the degradation speed of oil pollution, and makes the degradation more complete.

[0041] After separation, the inlet pipe 307 is connected to the clean water pipe, and the cleaning solution is injected into the mixing tank 301 through the inlet pipe 306. At this time, the clean water will mix with the cleaning solution. Then, the cleaning valve 302 is opened, and the cleaning water will flow into the cleaning plate 304 inside the primary separation tank 201 and the secondary separation tank 209 through the connecting pipe 303. The water is sprayed into the tank through the wide-angle nozzles 305 around the cleaning plate 304. Because the wide-angle nozzles 305 are wide-angle, the angle of the sprayed cleaning water is wider. When the cleaning solution comes into contact with the tank wall, it will carry the oil adsorbed on the tank wall down with it, thus achieving the function of cleaning the tank wall after separation.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A septic tank treatment device for biodegradable oil pollution, comprising a tank body (1), characterized in that, The right side of the pool body (1) is provided with a separation mechanism (2) for separating oil sludge near the rear end, and the right side of the pool body (1) is provided with a filtration mechanism (4) for filtering oil liquid near the front end. The pool body (1) is provided with a sludge inlet mechanism (5). A degradation pool (6) is connected to one side of the pool body (1). The degradation pool (6) is used to degrade oil sludge. The separation mechanism (2) includes a primary separation tank (201), which is located on one side of the pool body (1). A secondary separation tank (209) is connected to one side of the primary separation tank (201). Heating rods (202) are fixedly connected to the outer side of the top of both the primary separation tank (201) and the secondary separation tank (209). An ultrasonic transducer (203) is connected to the middle of the top of both the primary separation tank (201) and the secondary separation tank (209). A sewage pump (204) is installed inside both the primary separation tank (201) and the secondary separation tank (209). 204) A drain pipe (206) is connected to the drain pipe (206). A drain valve (205) is installed on the outer wall of the drain pipe (206). An oil drain pipe (207) is connected to the upper end of the outer wall of the primary separation tank (201). One side of the oil drain pipe (207) is connected to the outer wall of the secondary separation tank (209). An oil drain valve (208) is installed on the outer wall of the oil drain pipe (207). The other end of the oil drain pipe (207) is located at the top of the degradation tank (6). A cleaning mechanism (3) is provided inside the primary separation tank (201). The cleaning mechanism (3) is used to clean the inner wall of the primary separation tank (201).

2. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, The cleaning mechanism (3) includes a mixing tank (301), which is located on the outer wall of the primary separation tank (201). One end of the mixing tank (301) is connected to a connecting pipe (303). A cleaning valve (302) is installed on the outer wall of the connecting pipe (303). Two identical cleaning discs (304) are connected to one side of the connecting pipe (303). Multiple wide-angle nozzles (305) are connected to the outer wall of the cleaning discs (304). The wide-angle nozzles (305) are used for water spraying and cleaning. The top of the mixing tank (301) is connected to a water inlet pipe (306) and a liquid inlet pipe (307).

3. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, The filtration mechanism (4) includes a filter tube (401), which is located on the outside of the primary separation tank (201). An annular filter plate (402) is installed inside the filter tube (401). The outer wall of the annular filter plate (402) has multiple rows of holes for filtration. A tank cover (403) is installed on the top of the filter tube (401). A conical funnel (404) is connected to the bottom of the filter tube (401). A return pipe (405) is connected to the bottom of the conical funnel (404). A return valve (406) is installed on the outer wall of the return pipe (405).

4. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, The sludge inlet mechanism (5) includes a sludge inlet tray (501), which is located in the middle of the interior of the pool body (1). The outer wall of the sludge inlet tray (501) has multiple elongated holes. The bottom of the sludge inlet tray (501) is connected to a connecting pipe two (502). The upper end of the outer wall of the connecting pipe two (502) is fixed with a support rod (503) for supporting the connecting pipe two (502). The lower end of the outer wall of the connecting pipe two (502) is fixed with a fixing clamp one (504). The bottoms of the support rod (503) and the fixing clamp one (504) are both fixedly connected to the bottom of the pool body (1).

5. The septic tank treatment device for biodegradable oil pollution according to claim 4, characterized in that, The other end of the connecting pipe (502) is connected to the sewage pipe (7). A sewage valve (8) is installed on the outer wall of the sewage pipe (7). Two identical fixing clips (9) are installed on the outer wall of the sewage pipe (7) and connected to the outside of the pool body (1). The other end of the sewage pipe (7) is connected to the lifting pipe (10). A water pump (11) is installed on the top of the lifting pipe (10). The other end of the lifting pipe (10) is connected to the filter pipe (401).

6. The septic tank treatment device for biodegradable oil pollution according to claim 3, characterized in that, The lower end of the outer wall of the filter pipe (401) is connected to a connecting secondary pipe (12). One side of the outer wall of the connecting secondary pipe (12) is connected to a connecting main pipe (14). The outer wall of the connecting main pipe (14) is provided with a main pipe valve (15). A second water pump (16) is installed on the top of the connecting main pipe (14). The other side of the outer wall of the connecting secondary pipe (12) is provided with a secondary pipe valve (13). Both the connecting secondary pipe (12) and the connecting main pipe (14) are connected to the primary separation tank (201).

7. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, The bottom of both the primary separation tank (201) and the secondary separation tank (209) is fixedly connected to a support base (23). One side of the support base (23) is fixedly connected to multiple connecting bridges (17), and the other side of the connecting bridges (17) is fixedly connected to the pool body (1).

8. The septic tank treatment device for biodegradable oil pollution according to claim 7, characterized in that, An ultrasonic generator (18) for generating ultrasonic waves is installed on the outer side of the top of the support base (23). The top of the ultrasonic generator (18) is connected to two identical output lines (19), and the other end of the two output lines (19) is connected to two ultrasonic transducers (203) respectively.

9. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, One side of the pool body (1) is connected to a water inlet pipe (20), which is used to inject water into the pool body (1). A water inlet valve (21) is installed on the outer wall of the water inlet pipe (20).

10. The septic tank treatment device for biodegradable oil pollution according to claim 1, characterized in that, The front side of the pool body (1) is connected to a septic tank connecting pipe (22), which is used to collect sewage in the pool body (1).

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