Rural sewage integrated treatment device based on natural energy supply

Abstract

The utility model discloses a rural sewage integrated treatment device based on natural energy supply, which comprises a water inlet tank, the water inlet tank is connected with an uncovered reaction tank box body through a pipeline, an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank are arranged in the uncovered reaction tank box body, the anoxic tank is connected with the aerobic tank through a pipeline, and the anaerobic tank is connected with the sedimentation tank through a pipeline. And pumping devices are respectively arranged on the pipelines and are connected with the photovoltaic power generation module through power transmission lines. The equipment can realize natural energy supply, improves the treatment effect in an ecological mode, reduces environmental pollution, and has the characteristics that the photovoltaic power generation module realizes photoelectric conversion and replaces the electric energy consumption of an aeration device and a pumping device in a traditional process.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and relates to an integrated rural sewage treatment device powered by natural energy. Background Technique

[0002] Rural sewage mainly comes from kitchen water, washing water, toilet water, etc., and has the characteristics of unstable water quality, fluctuating water volume, and relatively scattered discharge points. Based on these characteristics, there are often problems in rural sewage treatment in China, such as unreasonable selection of treatment technologies, irregular operation of treatment facilities, and unscientific formulation of discharge standards, resulting in relatively limited sewage treatment capacity and low treatment rate. At present, rural sewage treatment technologies in China are mainly divided into three categories: biological treatment technology, ecological treatment technology, and biological-ecological combined treatment technology. Specifically, biological treatment technologies include A / O, A / A / O, biological filter method, and sequencing batch activated sludge method (SBR), etc. Although they can achieve stable treatment effects, the operating conditions are strict and the treatment costs are relatively high; ecological treatment technologies include processes such as land infiltration, stabilization ponds, and constructed wetlands. This type of technology is simple to operate and has low operating costs, but the effluent water quality is unstable and environmental pollution risks are easily generated; the biological-ecological combined treatment technology reasonably adopts a variety of process combinations according to different treatment requirements, giving full play to the treatment advantages of each process, but the construction cost and on-site operation and maintenance difficulty of this technology have been greatly improved; in addition, none of these three types of technologies can cope with the impact brought by fluctuations in water quality and water volume. Therefore, there is an urgent need for a low-cost and high-application-scenario treatment device suitable for rural sewage treatment. Content of the Utility Model

[0003] The purpose of the utility model is to provide an integrated rural sewage treatment device powered by natural energy, which can realize the supply of natural energy, and at the same time improve the treatment effect in an ecological way and reduce environmental pollution.

[0004] The technical solution adopted by the utility model is that an integrated rural sewage treatment device powered by natural energy includes an inlet tank, the inlet tank is connected to an uncovered reaction tank body through a pipeline, an anaerobic tank, an anoxic tank, an aerobic tank, and a sedimentation tank are arranged in the uncovered reaction tank body, the anoxic tank is connected to the aerobic tank, and the anaerobic tank is connected to the sedimentation tank through pipelines, and pumping devices are respectively arranged on the pipelines, and the pumping devices are connected to a photovoltaic power generation module through a power transmission line.

[0005] The characteristics of the utility model also lie in that:

[0006] Partition boards a, b, and d are fixedly installed in parallel vertically in the uncovered reaction tank body. An overflow groove is opened in the upper part of partition board d. Partition boards a, b, and d sequentially divide the uncovered reaction tank body into an anaerobic tank, an anoxic tank, an aerobic tank, and a sedimentation tank. A sludge discharge port is installed at the bottom of the sedimentation tank, and a water baffle parallel to partition board d is fixedly installed on the inner side wall of the sedimentation tank.

[0007] The sludge discharge port is a conical structure that matches the opening at the lower end of the sedimentation tank.

[0008] The anaerobic tank is connected to the lower part of the anoxic tank, the anoxic tank is connected to the upper part of the aerobic tank, and a partition plate c parallel to the partition plate b is also provided in the aerobic tank, dividing the aerobic tank into two compartments, and the inside of the aerobic tank is connected at the lower part of the partition plate c.

[0009] Polyurethane sponge fillers are added to the anaerobic tank, anoxic tank and aerobic tank, and the filling rate is 30%.

[0010] The photovoltaic power generation module includes a solar panel, the solar panel is electrically connected to a storage battery, the storage battery is electrically connected to a controller, and the controller is respectively connected to the pumping device through a transmission line.

[0011] An interface a is provided on the side wall of the anaerobic tank, an interface b is provided on the side wall of the anoxic tank, an interface c is provided on the side wall of the aerobic tank close to the sedimentation tank, a water inlet is provided on the upper part of the outer side wall of the anaerobic tank, a water outlet is provided on the upper part of the outer side wall of the sedimentation tank, an L-shaped baffle is fixedly installed inside the sedimentation tank and below the water outlet, a solid-liquid mixture sampling port is provided in the middle of the outer side wall of the sedimentation tank, the water inlet is connected to the water inlet tank through a water inlet pipe, the sludge discharge port is connected to the interface a through a sludge return pipe, and the interface c is connected to the interface b through a mixed liquid return pipe.

[0012] The pumping device includes peristaltic pumps a, b, and c respectively provided on the water inlet pipe, sludge return pipe and mixed liquid return pipe.

[0013] An aeration pipe is provided in the aerobic tank, the aeration pipe is connected to a blower, and the blower is electrically connected to the controller.

[0014] The aeration pipe is divided into two paths and extends into the two compartments of the aerobic tank respectively.

[0015] The beneficial effects of the present utility model are as follows: By adding a filler strengthening device, the amount of microorganisms is increased, and the treatment capacity of the uncovered reaction tank box is improved; an overflow trough and a water baffle are added to reduce the water flow disturbance in the sedimentation tank and effectively improve the solid-liquid separation effect of the equipment; the present utility model changes the traditional structure of the sedimentation tank, and a conical sludge discharge port is provided in the sedimentation tank to replace the sludge scraping device, realizing sludge collection without power, reducing the operation and maintenance difficulty and cost; through the photovoltaic power generation module, photoelectric conversion is realized, replacing the electric energy consumption of the traditional process in the aeration device and pumping device, realizing natural energy supply, and the equipment has a small floor area, excellent treatment capacity, environmental friendliness and meets the concept of sustainable development. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the integrated rural sewage treatment device based on natural energy supply of the present utility model;

[0017] Figure 2This is the front view of the integrated rural sewage treatment device powered by natural energy according to the present utility model;

[0018] Figure 3 This is the side view of the integrated rural sewage treatment device powered by natural energy according to the present utility model.

[0019] In the figure, 1. Uncovered reaction tank box body, 2. Peristaltic pump a, 3. Blower, 4. Anaerobic tank, 5. Anoxic tank, 6. Aerobic tank, 7. Overflow trough, 8. Baffle plate, 9. Sedimentation tank, 10. Solar panel, 11. Storage battery, 12. Controller, 13. Mixed liquid return pipe, 14. Sludge return pipe, 15. Power transmission line, 16. Aeration pipe, 17. Water inlet pipe, 18. Water outlet, 19. Peristaltic pump b, 20. Peristaltic pump c, 21. Water inlet, 22. Interface a, 23. Interface b, 24. Interface c, 25. Solid-liquid mixture sampling port, 26. Sludge discharge port, 27. Water inlet tank, 28. Partition plate a, 29. Partition plate b, 30. Partition plate c, 31. L-shaped baffle plate, 32. Partition plate d. Detailed implementation manners

[0020] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0021] The integrated rural sewage treatment device powered by natural energy, as Figure 1 shown, includes a water inlet tank 27. The water inlet tank 27 is connected to the uncovered reaction tank box body 1 through a water inlet pipe 17. An anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 are arranged in the uncovered reaction tank box body 1. The anoxic tank 5 is connected to the aerobic tank 6 through a mixed liquid return pipe 13. The anaerobic tank 4 is connected to the sedimentation tank 9 through a sludge return pipe 14. A peristaltic pump a 2 is arranged on the water inlet pipe 17. A peristaltic pump b 19 is arranged on the sludge return pipe 14. A peristaltic pump c 20 is arranged on the mixed liquid return pipe 13. The solar panel 10 is electrically connected to the storage battery 11. The storage battery 11 is electrically connected to the controller 12. The controller 12 is respectively connected to the peristaltic pump a 2, the peristaltic pump b 19, the peristaltic pump c 20 and the blower 3 through a power transmission line 15.

[0022] As Figure 2 and Figure 3As shown in the figure, partition plate a28, partition plate b29 and partition plate d32 are fixedly installed in parallel vertically inside the lidless reaction tank box body 1. An overflow tank 7 is provided at the upper part of partition plate d32. Partition plate a28, partition plate b29 and partition plate d32 divide the lidless reaction tank box body 1 into an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 in sequence. A sludge discharge port 26 is installed at the bottom of the sedimentation tank 9. A water baffle 8 parallel to partition plate d32 is fixedly installed on the inner side wall of the sedimentation tank 9. The sludge discharge port 26 is a conical structure matching the lower opening of the sedimentation tank 9. The lower part of the anaerobic tank 4 communicates with the lower part of the anoxic tank 5, and the upper part of the anoxic tank 5 communicates with the upper part of the aerobic tank 6. A partition plate c30 parallel to partition plate b29 is also provided inside the aerobic tank 6, dividing the aerobic tank 6 into two compartments, and the inside of the aerobic tank 6 communicates below the partition plate c30. Polyurethane sponge fillers are added to the anaerobic tank 4, the anoxic tank 5 and the aerobic tank 6, and the filling rate is 30%. An interface a22 is provided on the side wall of the anaerobic tank 4, an interface b23 is provided on the side wall of the anoxic tank 5, an interface c24 is provided on the side wall of the aerobic tank 6 close to the sedimentation tank 9, an inlet 21 is provided at the upper part of the outer side wall of the anaerobic tank 4, an outlet 18 is provided at the upper part of the outer side wall of the sedimentation tank 9. An L-shaped baffle 31 is fixedly installed inside the sedimentation tank 9 and below the outlet 18. A solid-liquid mixture sampling port 25 is provided in the middle of the outer side wall of the sedimentation tank 9. The inlet 21 is connected to the inlet tank 27 through a water inlet pipe 17. The sludge discharge port 26 is connected to the interface a22 through a sludge return pipe 14. The interface c24 is connected to the interface b23 through a mixed liquid return pipe 13. An air distribution pipe 16 is provided inside the aerobic tank 6. The air distribution pipe 16 is connected to a blower 3, and the blower 3 is electrically connected to a controller 12. The air distribution pipe 16 is divided into two paths and extends into the two compartments of the aerobic tank 6 respectively.

[0023] The working principle of the integrated rural sewage treatment device supplied by the utility model based on natural energy supply is as follows:

[0024] The solar panel 10 collects sunlight and converts light energy into electric energy. The solar panel 10 is electrically connected to the storage battery 11. The electric energy is stored through the storage battery 11. The storage battery 11 is electrically connected to the controller 12. The electric energy output is realized through the controller 12 to support the power consumption of the peristaltic pump a2, the peristaltic pump b19, the peristaltic pump c20 and the blower 3. The controller 12 is connected to the peristaltic pump a2, the peristaltic pump b19, the peristaltic pump c20 and the blower 3 respectively through a power transmission line 15.

[0025] This device can be applied to the biological treatment technology A / A / O process. Different types of activated sludge are added to the anaerobic tank 4, the anoxic tank 5 and the aerobic tank 6. A / A / O is the abbreviation of anaerobic-anoxic-aerobic biological nitrogen and phosphorus removal process, and biological nitrogen and phosphorus removal is carried out by using the activated sludge method.

[0026] Polyurethane sponge fillers are added to the anaerobic tank 4, anoxic tank 5, and aerobic tank 6 of this device. The monomer specification of the polyurethane sponge filler is a cube structure with dimensions of 3 cm × 3 cm × 3 cm, and its filling rate is 30%, which is used to enrich the dominant bacteria and strengthen the process of organic matter degradation.

[0027] After being collected by zones, rural sewage is stored in the inlet tank 27. The peristaltic pump a2 provides power to lift the sewage in the inlet tank 27 through the inlet pipe 17 to the inlet 21, and then enters the lidless reaction tank box 1.

[0028] When using the device of the present utility model to treat sewage, the first-stage reaction is carried out in the anaerobic tank 4. Rural sewage enters the anaerobic tank 4 through the inlet 21. The peristaltic pump b19 provides power to return the phosphorus-containing sludge refluxed from the sedimentation tank 9 to the anaerobic tank 4 through the sludge reflux pipe 14, and the hydrolysis and acidification of organic matter and the anaerobic phosphorus release process of polyphosphate-accumulating organisms are carried out. The hydraulic retention time in this process is 1 h.

[0029] The second-stage reaction is carried out in the anoxic tank 5. The peristaltic pump c20 provides power to return the mixed liquid in the aerobic tank 6 to the anoxic tank 5 through the mixed liquid reflux pipe 13, and the denitrification reaction is carried out under the action of denitrifying bacteria with the anaerobic digestate. The hydraulic retention time in this process is 1 h.

[0030] The third-stage reaction is carried out in the aerobic tank 6. One end of the aeration pipe 16 is connected to the blower 3, and the other end of the aeration pipe 16 extends into the aerobic tank 6. The aeration pipe 16 is divided into two paths and extends into two grids of the aerobic tank 6 respectively. The biochemical degradation process of organic matter is mainly strengthened through aeration, and at the same time, the nitrification reaction and the phosphorus absorption process of polyphosphate-accumulating organisms are carried out. The hydraulic retention time of this process is 8 h, and the internal reflux ratio of the mixed liquid is 200%. The aerobic environment in the aerobic tank 6 is provided by the blower 3 and the aeration pipe 16 to ensure that the dissolved oxygen concentration in the aerobic tank remains at 3 mg / L.

[0031] The fourth-stage reaction is carried out in the sedimentation tank 9. During continuous operation, when the water level in the aerobic tank 6 exceeds the overflow trough 7, the mixed liquid enters the sedimentation tank 9 through the overflow trough 7 and the baffle 8. The baffle 8 reduces the water output of the aerobic tank 6 to reduce the water flow disturbance in the sedimentation tank 9, and at the same time improves the solid-liquid separation degree of the mixed liquid and increases the hydraulic retention time. Part of the sludge collected by the sedimentation tank 9 flows back to the anaerobic tank 4 through the sludge reflux pipe 14 at a reflux ratio of 80%, and part of the surplus sludge is discharged from the conical sludge discharge port 26. The upper-layer liquid after precipitation in the sedimentation tank 9 is buffered by the L-shaped baffle 31 and then discharged through the water outlet 18. The solid-liquid mixture sampling port 25 is convenient for sampling during the sewage treatment process.

[0032] In the device of the present utility model, the dimensions of the lidless reaction tank box 1 are 810 mm × 1000 mm × 100 mm.

[0033] Among them, the output power of the photovoltaic power generation module is 1000 W, including a solar panel 10, a storage battery 11 and a controller 12. The solar panel 10 has a size of 830 mm × 550 mm, a power of 80 W, and an open-circuit voltage of 22.7 V; the storage battery 11 has a capacity of 120 Ah and an output voltage of 12 V; the function of this photovoltaic power generation module is to support the power consumption of a peristaltic pump a2, a peristaltic pump b19, a peristaltic pump c20 and a blower 3.

[0034] Example 1:

[0035] The integrated rural sewage treatment device powered by natural energy proposed in this embodiment, as Figure 1 shown, includes an inlet tank 27, and the inlet tank 27 is connected to an uncovered reaction tank body 1 through a pipeline. An anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 are arranged in the uncovered reaction tank body 1. The anoxic tank 5 is connected to the aerobic tank 6, and the anaerobic tank 4 is connected to the sedimentation tank 9 through pipelines, and pumping devices are respectively arranged on the pipelines. The pumping devices are connected to the photovoltaic power generation module through a power transmission line 15.

[0036] Example 2:

[0037] The integrated rural sewage treatment device powered by natural energy proposed in this embodiment, as Figure 1 shown, includes an inlet tank 27, and the inlet tank 27 is connected to an uncovered reaction tank body 1 through a pipeline. An anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 are arranged in the uncovered reaction tank body 1. The anoxic tank 5 is connected to the aerobic tank 6, and the anaerobic tank 4 is connected to the sedimentation tank 9 through pipelines, and pumping devices are respectively arranged on the pipelines. The pumping devices are connected to the photovoltaic power generation module through a power transmission line 15.

[0038] As Figure 2 and 3 shown, partition plates a28, b29 and d32 are fixedly installed in parallel vertically in the uncovered reaction tank body 1. An overflow groove 7 is opened in the upper part of the partition plate d32. The partition plates a28, b29 and d32 divide the uncovered reaction tank body 1 into an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 in sequence. A sludge discharge port 26 is installed at the bottom of the sedimentation tank 9, and a water baffle 8 parallel to the partition plate d32 is fixedly installed on the inner side wall of the sedimentation tank 9. The water baffle 8 reduces the water output of the aerobic tank 6 to reduce the water flow disturbance in the sedimentation tank 9, and at the same time improves the solid-liquid separation degree of the mixed liquid and increases the hydraulic retention time.

[0039] The sludge discharge port 26 is a conical structure matching the lower end opening of the sedimentation tank 9 to realize sludge collection without power.

[0040] The anaerobic tank 4 is connected to the lower part of the anoxic tank 5, and the anoxic tank 5 is connected to the upper part of the aerobic tank 6. A partition c30 parallel to the partition b29 is also provided in the aerobic tank 6, dividing the aerobic tank 6 into two compartments, and the interior of the aerobic tank 6 is connected at the lower part of the partition c30.

[0041] Polyurethane sponge fillers are added to the anaerobic tank 4, the anoxic tank 5, and the aerobic tank 6, with a filling rate of 30%. A filler dosing device is added to increase the microbial biomass and improve the treatment capacity of the lidless reaction tank body 1.

[0042] Example 3:

[0043] The rural sewage integrated treatment device powered by natural energy proposed in this example, as Figure 1 shown, includes an inlet tank 27. The inlet tank 27 is connected to the lidless reaction tank body 1 through a pipeline. An anaerobic tank 4, an anoxic tank 5, an aerobic tank 6, and a sedimentation tank 9 are provided in the lidless reaction tank body 1. The anoxic tank 5 is connected to the aerobic tank 6, and the anaerobic tank 4 is connected to the sedimentation tank 9 through pipelines, and pumping devices are respectively provided on the pipelines. The pumping devices are connected to the photovoltaic power generation module through the power transmission line 15.

[0044] As Figure 2 and 3 shown, partition plates a28, b29, and d32 are fixedly installed in parallel vertically in the lidless reaction tank body 1. An overflow groove 7 is provided at the upper part of the partition plate d32. The partition plates a28, b29, and d32 divide the lidless reaction tank body 1 into an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6, and a sedimentation tank 9 in sequence. A sludge discharge port 26 is installed at the bottom of the sedimentation tank 9, and a water baffle 8 parallel to the partition plate d32 is fixedly installed on the inner side wall of the sedimentation tank 9. The water baffle 8 reduces the water output of the aerobic tank 6 to reduce the water flow disturbance in the sedimentation tank 9, while improving the solid-liquid separation degree of the mixed liquid and increasing the hydraulic retention time.

[0045] The sludge discharge port 26 is a conical structure matching the lower opening of the sedimentation tank 9, realizing the non-powered collection of sludge.

[0046] The anaerobic tank 4 is connected to the lower part of the anoxic tank 5, and the anoxic tank 5 is connected to the upper part of the aerobic tank 6. A partition c30 parallel to the partition b29 is also provided in the aerobic tank 6, dividing the aerobic tank 6 into two compartments, and the interior of the aerobic tank 6 is connected at the lower part of the partition c30.

[0047] Polyurethane sponge fillers are added to the anaerobic tank 4, the anoxic tank 5, and the aerobic tank 6, with a filling rate of 30%. A filler dosing device is added to increase the microbial biomass and improve the treatment capacity of the lidless reaction tank body 1.

[0048] The photovoltaic power generation module includes a solar panel 10, the solar panel 10 is electrically connected to a storage battery 11, the storage battery 11 is electrically connected to a controller 12, the controller 12 is respectively connected to a pumping device through a power transmission line 15. The photovoltaic power generation module realizes photoelectric conversion, replaces the power consumption of the pumping device in the traditional process, and realizes the supply of natural energy.

[0049] Embodiment 4:

[0050] The integrated rural sewage treatment device based on natural energy supply proposed in this embodiment, as Figure 1 shown, includes an inlet tank 27, the inlet tank 27 is connected to an uncovered reaction tank body 1 through a pipeline. An anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 are arranged in the uncovered reaction tank body 1. The anoxic tank 5 is connected to the aerobic tank 6, and the anaerobic tank 4 is connected to the sedimentation tank 9 through pipelines. Pumping devices are respectively arranged on the pipelines, and the pumping devices are connected to the photovoltaic power generation module through a power transmission line 15.

[0051] As Figure 2 and 3 shown, partition plates a28, b29 and d32 are fixedly installed in parallel vertically in the uncovered reaction tank body 1. An overflow groove 7 is formed in the upper part of the partition plate d32. The partition plates a28, b29 and d32 divide the uncovered reaction tank body 1 into an anaerobic tank 4, an anoxic tank 5, an aerobic tank 6 and a sedimentation tank 9 in sequence. A sludge discharge port 26 is installed at the bottom of the sedimentation tank 9, and a water baffle 8 parallel to the partition plate d32 is fixedly installed on the inner side wall of the sedimentation tank 9. The water baffle 8 reduces the water output of the aerobic tank 6 to reduce the water flow disturbance in the sedimentation tank 9, and at the same time improves the solid-liquid separation degree of the mixed liquid and increases the hydraulic retention time.

[0052] The sludge discharge port 26 is a conical structure matching the lower opening of the sedimentation tank 9, realizing the non-powered collection of sludge.

[0053] The lower part of the anaerobic tank 4 is communicated with the anoxic tank 5, the upper part of the anoxic tank 5 is communicated with the aerobic tank 6, and a partition plate c30 parallel to the partition plate b29 is also arranged in the aerobic tank 6, dividing the aerobic tank 6 into two compartments, and the inside of the aerobic tank 6 is communicated at the lower part of the partition plate c30.

[0054] Polyurethane sponge fillers are added to the anaerobic tank 4, the anoxic tank 5 and the aerobic tank 6, and the filling rate is 30%. A filler adding device is used to increase the amount of microorganisms and improve the treatment capacity of the uncovered reaction tank body 1.

[0055] The photovoltaic power generation module includes a solar panel 10, the solar panel 10 is electrically connected to a storage battery 11, the storage battery 11 is electrically connected to a controller 12, the controller 12 is respectively connected to a pumping device through a power transmission line 15. The photovoltaic power generation module realizes photoelectric conversion, replaces the power consumption of the pumping device in the traditional process, and realizes the supply of natural energy.

[0056] An interface a22 is provided on the side wall of the anaerobic tank 4, an interface b23 is provided on the side wall of the anoxic tank 5, an interface c24 is provided on the side wall of the aerobic tank 6 close to the sedimentation tank 9, a water inlet 21 is provided on the upper part of the outer side wall of the anaerobic tank 4, a water outlet 18 is provided on the upper part of the outer side wall of the sedimentation tank 9, an L-shaped baffle 31 is fixedly installed inside the sedimentation tank 9 and below the water outlet 18, a solid-liquid mixture sampling port 25 is provided in the middle of the outer side wall of the sedimentation tank 9, the water inlet 21 is connected to the water inlet tank 27 through a water inlet pipe 17, the sludge discharge port 26 is connected to the interface a22 through a sludge return pipe 14, and the interface c24 is connected to the interface b23 through a mixed liquid return pipe 13.

[0057] The pumping device includes peristaltic pumps a2, b19, and c20 respectively provided on the water inlet pipe 17, sludge return pipe 14, and mixed liquid return pipe 13, providing power for the water inlet pipe 17, sludge return pipe 14, and mixed liquid return pipe 13.

[0058] An aeration pipe 16 is provided in the aerobic tank 6, the aeration pipe 16 is connected to a blower 3, and the blower 3 is electrically connected to a controller 12. The aeration pipe 16 is divided into two paths and extends into two grids of the aerobic tank 6 respectively to strengthen the biochemical degradation process of organic matter through aeration.

Claims

1. An integrated rural sewage treatment device powered by natural energy, characterized in that, It includes an inlet tank (27), and the inlet tank (27) is connected to the lidless reaction tank body (1) through a pipeline. Inside the lidless reaction tank body (1), partition board a (28), partition board b (29) and partition board d (32) are fixedly installed in parallel vertically. An overflow groove (7) is provided at the upper part of the partition board d (32). The partition board a (28), partition board b (29) and partition board d (32) sequentially divide the lidless reaction tank body (1) into an anaerobic tank (4), an anoxic tank (5), an aerobic tank (6) and a sedimentation tank (9). The anoxic tank (5) is connected to the aerobic tank (6), and the anaerobic tank (4) is connected to the sedimentation tank (9) through pipelines. The lower parts of the anaerobic tank (4) and the anoxic tank (5) are communicated, and the upper parts of the anoxic tank (5) and the aerobic tank (6) are communicated. Inside the aerobic tank (6), there is also a partition board c (30) parallel to the partition board b (29), which divides the aerobic tank (6) into two compartments. The inside of the aerobic tank (6) is communicated at the lower part of the partition board c (30). A sludge discharge port (26) is installed at the bottom of the sedimentation tank (9). The sludge discharge port (26) is a conical structure matching the lower opening of the sedimentation tank (9). A water baffle (8) parallel to the partition board d (32) is fixedly installed on the inner side wall of the sedimentation tank (9). Pumping devices are respectively provided on the pipelines, and the pumping devices are connected to the photovoltaic power generation module through power transmission lines (15).

2. The integrated rural sewage treatment device powered by natural energy according to claim 1, characterized in that Polyurethane sponge fillers are added to the anaerobic tank (4), anoxic tank (5) and aerobic tank (6), and the filling rate is 30%.

3. The integrated rural sewage treatment device powered by natural energy according to claim 2, characterized in that, The photovoltaic power generation module includes a solar panel (10). The solar panel (10) is electrically connected to a storage battery (11). The storage battery (11) is electrically connected to a controller (12). The controller (12) is respectively connected to the pumping devices through power transmission lines (15).

4. The integrated rural sewage treatment device powered by natural energy according to claim 3, characterized in that, An interface a (22) is provided on the side wall of the anaerobic tank (4), an interface b (23) is provided on the side wall of the anoxic tank (5), an interface c (24) is provided on the side wall of the aerobic tank (6) close to the sedimentation tank (9). An inlet (21) is provided at the upper part of the outer side wall of the anaerobic tank (4). An outlet (18) is provided at the upper part of the outer side wall of the sedimentation tank (9). An L-shaped baffle (31) is fixedly installed inside the sedimentation tank (9) and below the outlet (18). A solid-liquid mixture sampling port (25) is provided in the middle of the outer side wall of the sedimentation tank (9). The inlet (21) is connected to the inlet tank (27) through an inlet pipe (17). The sludge discharge port (26) is connected to the interface a (22) through a sludge return pipe (14). The interface c (24) is connected to the interface b (23) through a mixed liquid return pipe (13).

5. The integrated rural sewage treatment device powered by natural energy according to claim 4, characterized in that, The pumping devices include a peristaltic pump a (2), a peristaltic pump b (19) and a peristaltic pump c (20) respectively provided on the inlet pipe (17), the sludge return pipe (14) and the mixed liquid return pipe (13).

6. The integrated rural sewage treatment device powered by natural energy according to claim 4, characterized in that, An air distribution pipe (16) is provided inside the aerobic tank (6). The air distribution pipe (16) is connected to a blower (3). The blower (3) is electrically connected to the controller (12).

7. The integrated rural sewage treatment device powered by natural energy according to claim 6, characterized in that, The aeration pipe (16) is divided into two paths and extends into two compartments of the aerobic tank (6) respectively.

Images