Small integrated rural single-household sewage treatment device

Abstract

The utility model provides a small-sized integrated rural single-household sewage treatment device, belongs to the technical field of sewage treatment, mainly aims at solving the problems of large occupied area and small application range of the traditional sewage treatment device, and provides the following technical scheme: the small-sized integrated rural single-household sewage treatment device comprises a device main body buried underground, and the device main body comprises an upper cover and a lower cover, the upper cover and the lower cover are fixedly connected through a plurality of groups of screws, grooves are formed in adjacent surfaces of the upper cover and the lower cover, a plurality of groups of pressure-resistant partition plates are arranged in the grooves along the horizontal direction, and the plurality of groups of pressure-resistant partition plates are arranged in sequence to divide the grooves into an anaerobic hydrolysis acidification regulation area, an aerobic reaction area, an anoxic denitrification precipitation area and a clear water storage area; the upper cover and the lower cover adopt optimal design of fluid mechanics and pressure-bearing mechanics, meanwhile, multiple groups of pressure-resistant partition plates are clamped in the upper cover and the lower cover, the device body is high in pressure-bearing strength and can be buried underground, the problem that a traditional purification tank is not suitable for deep burying is solved, the device is suitable for single-household sewage treatment in northern cold regions of China, and the application range is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and more specifically, particularly relates to a small integrated rural single-household sewage treatment device. Background Art

[0002] Rural toilet reform and domestic sewage treatment are important contents of rural living environment improvement and agricultural and rural pollution control, and are important factors that determine the appearance of villages and the level of governance. Effectively connecting rural toilet reform and domestic sewage treatment is an important part of further reducing rural domestic pollution emissions, improving water resource utilization and manure resource utilization, and promoting the continuous improvement of rural living environment.

[0003] In the prior art, generally each household is equipped with a septic tank. After the feces and sewage are precipitated in the septic tank and other pre-treated, the sewage in the septic tank is collected into a septic tank through a pipe network, and then the feces and sewage in the septic tank are subjected to biochemical treatments such as precipitation, anaerobic fermentation and denitrification. The sewage obtained after biochemical treatment is regularly cleaned and used as fertilizer for crops or directly discharged to the outside. However, the combined process (septic tank + septic tank) has the disadvantages of large footprint, high investment and high operating cost. At the same time, the traditional septic tank has the defect of structural design and is not suitable for burying too deep. The temperature in northern my country is low in winter and the freezing period is long and it cannot be used, so its application range is limited to southern my country.

[0004] Therefore, it is particularly important to provide a small integrated sewage treatment equipment with strong pressure bearing capacity, low investment, small footprint, simple operation and maintenance, and high degree of automation. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a small integrated rural single-household sewage treatment device to solve the technical problems in the prior art that the existing sewage treatment device adopts a combination process of a septic tank and a purification tank, which occupies a large area; at the same time, the traditional purification tank should not be buried too deep, and the temperature in the northern region is low in winter and the freezing period is long and it cannot be used, resulting in a small scope of application.

[0006] The purpose and effect of the small integrated rural single-household sewage treatment device of the utility model are achieved by the following specific technical means:

[0007] A small integrated rural single-household sewage treatment device comprises a device body buried underground, the device body comprises an upper cover and a lower cover, the upper cover and the lower cover are fixedly connected by a plurality of sets of screws, a groove is provided on a side adjacent to the upper cover and the lower cover, a plurality of sets of pressure-resistant baffles are arranged in the horizontal direction in the groove, and the plurality of sets of pressure-resistant baffles are arranged in sequence, dividing the groove into an anaerobic hydrolysis acidification adjustment zone, an aerobic reaction zone, an anoxic denitrification precipitation zone and a clean water storage zone.

[0008] According to a preferred embodiment, a mounting hole is provided on one side of the upper cover, and one end of the water inlet pipe passes through the mounting hole and is connected to the anaerobic hydrolysis acidification adjustment zone. The volume of the anaerobic hydrolysis acidification adjustment zone is 1m 3 ~1.5m 3 .

[0009] According to a preferred embodiment, a connecting pipe is provided in the aerobic reaction zone, and the connecting pipe passes through one group of the pressure-resistant baffles and is connected with the anaerobic hydrolysis acidification adjustment zone.

[0010] According to a preferred embodiment, a first filler support is further provided in the aerobic reaction zone, and a plurality of groups of elastic combined fillers are provided on the first filler support, and the plurality of groups of elastic combined fillers are all rosette fillers.

[0011] According to a preferred embodiment, an aeration pipe is provided at the bottom of the aerobic reaction zone, a plurality of groups of microporous aeration tubes or a plurality of groups of microporous aeration stones are provided on the outer surface of the aeration pipe, an aeration fan is connected to one end of the aeration pipe, and the aeration fan is arranged on the ground.

[0012] According to a preferred embodiment, a water distribution pipe for communicating with the aerobic reaction zone is provided in the anoxic denitrification precipitation zone, and a second filler bracket is also provided in the anoxic denitrification precipitation zone, and multiple groups of suspended ball fillers are provided on the second filler bracket, and the multiple groups of suspended ball fillers are all porous rotating spherical suspended fillers.

[0013] According to a preferred embodiment, a stripping reflux device is provided at the bottom of the anoxic denitrification precipitation zone, and the top of the stripping reflux device is connected to the aeration fan through a pipeline.

[0014] According to a preferred embodiment, a submersible sewage pump is provided at the bottom of the clean water storage area, an overflow pipe is provided on the submersible sewage pump, and a liquid level control device is provided on the inner wall of the clean water storage area, and the liquid level control device is electrically connected to the submersible sewage pump.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Through the setting of the upper cover, the lower cover and multiple groups of pressure-resistant baffles, when installing the device, the upper cover and the lower cover are optimized in fluid mechanics and pressure-bearing mechanics. At the same time, multiple groups of pressure-resistant baffles are set inside, so that the main body of the device can be buried underground, with high pressure-bearing strength, which solves the problem that traditional purification tanks are not suitable for deep burial, adapts to single-household sewage treatment in cold areas in northern my country, and expands the scope of application.

[0017] 2. Through the setting of anaerobic hydrolysis acidification adjustment area, aerobic reaction area, anoxic denitrification precipitation area and clean water storage area, when using the device, by integrating multiple treatment areas in the main body of the device, sludge is returned and discharged by steam stripping, and the sewage passes through the anaerobic / aerobic / anoxic / precipitation stages in sequence, which can effectively remove the remaining ammonia nitrogen and phosphorus in the sewage, and the sewage meets the discharge standards after biochemical treatment; effectively reducing the occupied area, solving the problem of large occupation of the combined process of septic tank and purification tank in the prior art,

[0018] 3. By setting elastic composite fillers in the aerobic reaction zone, when using the device, the elastic composite fillers adopt rosette fillers, which can both form biofilms and effectively cut bubbles, thereby improving the transfer rate and utilization rate of oxygen, allowing the water-gas biofilm to be fully exchanged and the organic matter in the water to be efficiently treated; by setting up aeration pipes, using microporous aeration pipes or microporous aeration stones, the aeration bubbles have a small diameter, a large gas-liquid interface area, uniform bubble diffusion, no hole blockage, strong corrosion resistance, and easy replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a small integrated rural single-household sewage treatment device of the utility model;

[0020] Figure 2 This is an exploded diagram of a small integrated rural single-household sewage treatment device of the utility model;

[0021] Figure 3 This is a top view of a small integrated rural single-household sewage treatment device of the utility model;

[0022] Figure 4 yes Figure 3 Sectional view of AA in the middle;

[0023] Figure 5 The utility model is a development diagram of a small integrated rural single-household sewage treatment device.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0025] 11. Upper cover; 12. Lower cover; 13. Compression-resistant baffle; 14. Anaerobic hydrolysis and acidification adjustment zone; 15. Aerobic reaction zone; 16. Anoxic denitrification precipitation zone; 17. Clean water storage zone; 21. Mounting hole; 22. Water inlet pipe; 23. Connecting pipe; 24. First filler bracket; 25. Elastic composite filler; 26. Aeration pipe; 27. Aeration fan; 31. Water distribution pipe; 32. Second filler bracket; 33. Suspended ball filler; 34. Stripping reflux device; 35. Submersible sewage pump; 36. Overflow pipe. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Example:

[0028] As attached Figure 1 To Attachment Figure 5 As shown:

[0029] The utility model provides a small integrated rural single-household sewage treatment device, including a device body buried underground, the device body including an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are fixedly connected by a plurality of screws, the upper cover 11 and the lower cover 12 are optimized by fluid mechanics and bearing pressure mechanics, a groove is provided on one side adjacent to the upper cover 11 and the lower cover 12, a plurality of groups of pressure-resistant baffles 13 are arranged in the groove along the horizontal direction, the pressure-resistant baffles 13 have high pressure-bearing strength, can withstand pressure at a depth of more than 2 meters without damage, solves the problem that traditional purification tanks are not suitable for deep burial, and by arranging a plurality of groups of pressure-resistant baffles 13, both the structural strength is enhanced and the soil pressure during deep burial is well shared, so that the sewage treatment device can be safely buried at a depth of 2 meters or more, meets the normal use of sewage treatment in northern areas, and expands the scope of application.

[0030] By setting up multiple groups of pressure-resistant baffles 13, the groove is divided into multiple functional areas, realizing integrated treatment; specifically, the pressure-resistant baffles 13 divide the groove into anaerobic hydrolysis acidification adjustment area 14, aerobic reaction area 15, anoxic denitrification precipitation area 16 and clean water storage area 17, these areas are arranged in sequence, and the sewage can be gradually purified after the zone treatment; first, the sewage enters the anaerobic hydrolysis acidification adjustment area 14 for preliminary treatment, then the sewage enters the aerobic reaction area 15 for aerobic reaction, and then the sewage enters the anoxic denitrification precipitation area 16 for denitrification and precipitation treatment, and finally, the sewage after multiple biochemical treatments will enter the clean water storage area 17 for storage and discharge after reaching the standard; by integrating multiple functional areas in a device body, anaerobic, aerobic, anoxic and other multi-step biochemical treatments of sewage are realized, which can effectively remove the remaining ammonia nitrogen and phosphorus and other pollutants in the sewage. The problem of large land occupation of the combined process of septic tank and purification tank in the prior art is solved.

[0031] Please refer to Figure 2 and Figure 3 As shown, a mounting hole 21 is provided on one side of the upper cover 11, and one end of the water inlet pipe 22 passes through the mounting hole 21 and is connected to the anaerobic hydrolysis acidification regulating area 14. The anaerobic hydrolysis acidification regulating area 14 has the functions of both a septic tank and a regulating tank, and has a volume of 1m 3 ~1.5m 3 The hydraulic retention time is 10 to 15 days, which meets the use requirements.

[0032] Please refer to Figure 2 and Figure 4 As shown, a connecting pipe 23 is provided in the aerobic reaction zone 15, and the connecting pipe 23 passes through one group of the pressure-resistant baffles 13 and is connected with the anaerobic hydrolysis acidification adjustment zone 14. The aerobic reaction zone 15 adopts a bottom-in and top-out overflow method to distribute water. A first filler support 24 is also provided in the aerobic reaction zone 15, and a plurality of groups of elastic combined fillers 25 are provided on the first filler support 24. The plurality of groups of elastic combined fillers 25 are all wreath fillers. The wreath fillers can both form a film and effectively cut bubbles, thereby improving the transfer rate and utilization rate of oxygen.

[0033] Please refer to Figure 4 As shown, the water-gas biofilm is fully exchanged, and the organic matter in the water is efficiently treated. An aeration pipe 26 is arranged at the bottom of the aerobic reaction zone 15, and a plurality of groups of microporous aeration tubes or a plurality of groups of microporous aeration stones are arranged on the outer surface of the aeration pipe 26. The aeration bubble diameter is small, the gas-liquid interface area is large, the bubble diffusion is uniform, and the hole blockage will not occur. The corrosion resistance is strong and it is easy to replace and maintain; the aeration fan 27 is connected to one end of the aeration pipe 26, and the aeration fan 27 is arranged on the ground.

[0034] Please refer to Figure 4 As shown, a water distribution pipe 31 for communicating with the aerobic reaction zone 15 is provided in the anoxic denitrification precipitation zone 16. The water inlet and outlet mode of the anoxic denitrification precipitation zone 16 adopts a bottom-in and top-out overflow mode. A second filler bracket 32 ​​is also provided in the anoxic denitrification precipitation zone 16. A plurality of groups of suspended ball fillers 33 are arranged on the second filler bracket 32. The plurality of groups of suspended ball fillers 33 are all porous rotating spherical suspended fillers. The inner core adopts elastic filler, which greatly increases the specific surface area and mainly plays the role of biofilm carrier. At the same time, it also has the function of intercepting suspended matter. It has the advantages of strong biological adhesion, large specific surface area, high porosity, good chemical and biological stability, durability, no dissolution of harmful substances, no secondary pollution, UV protection, anti-aging, strong hydrophilicity, etc., which cannot be achieved by any soft, semi-soft, combined, and elastic fillers.

[0035] Please refer to Figure 4 and Figure 5 As shown, a stripping reflux device 34 is provided at the bottom of the anoxic denitrification precipitation zone 16, and the sewage riser is driven by stripping to discharge mud. The top of the stripping reflux device 34 is connected to the aeration fan 27 through a pipeline to provide stripping driving power.

[0036] Please refer to Figure 4 and Figure 5As shown, a submersible sewage pump 35 is provided at the bottom of the clean water storage area 17, an overflow pipe 36 is provided on the submersible sewage pump 35, and a liquid level control device is provided on the inner wall of the clean water storage area 17. The liquid level control device is electrically connected to the submersible sewage pump 35. The submersible sewage pump 35 is started in time through the feedback signal of the liquid level control device, and the clean water is discharged through the overflow pipe 36 for irrigation of crops.

[0037] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A small integrated rural single-household sewage treatment device, characterized in that: The invention comprises a device body buried underground, the device body comprising an upper cover (11) and a lower cover (12), the upper cover (11) and the lower cover (12) being fixedly connected by a plurality of sets of screws, a groove is provided on a surface adjacent to the upper cover (11) and the lower cover (12), a plurality of sets of pressure-resistant baffles (13) are arranged in the horizontal direction in the groove, and the plurality of sets of pressure-resistant baffles (13) are arranged in sequence to divide the groove into an anaerobic hydrolysis acidification adjustment area (14), an aerobic reaction area (15), an anoxic denitrification precipitation area (16) and a clean water storage area (17).

2. A small integrated rural single-household sewage treatment device as claimed in claim 1, characterized in that: A mounting hole (21) is provided on one side of the upper cover (11), and one end of a water inlet pipe (22) passes through the mounting hole (21) and is connected to the anaerobic hydrolysis acidification adjustment zone (14). The volume of the anaerobic hydrolysis acidification adjustment zone (14) is 1 m 3 ~1.5m 3 .

3. A small integrated rural single-household sewage treatment device as claimed in claim 2, characterized in that: A connecting pipe (23) is provided in the aerobic reaction zone (15), and the connecting pipe (23) passes through one group of the pressure-resistant partitions (13) and is connected to the anaerobic hydrolysis acidification adjustment zone (14).

4. A small integrated rural single-household sewage treatment device as claimed in claim 3, characterized in that: A first filler support (24) is also provided in the aerobic reaction zone (15), and a plurality of groups of elastic combined fillers (25) are provided on the first filler support (24), and the plurality of groups of elastic combined fillers (25) are all rosette fillers.

5. A small integrated rural single-household sewage treatment device as claimed in claim 1, characterized in that: An aeration pipe (26) is arranged at the bottom of the aerobic reaction zone (15), and a plurality of groups of microporous aeration tubes or a plurality of groups of microporous aeration stones are arranged on the outer surface of the aeration pipe (26). An aeration fan (27) is connected to one end of the aeration pipe (26), and the aeration fan (27) is arranged on the ground.

6. A small integrated rural single-household sewage treatment device as claimed in claim 5, characterized in that: The anoxic denitrification precipitation zone (16) is provided with a water distribution pipe (31) for communicating with the aerobic reaction zone (15). The anoxic denitrification precipitation zone (16) is also provided with a second filler support (32). The second filler support (32) is provided with a plurality of groups of suspended ball fillers (33). The plurality of groups of suspended ball fillers (33) are all porous rotating spherical suspended fillers.

7. A small integrated rural single-household sewage treatment device as claimed in claim 6, characterized in that: A stripping reflux device (34) is provided at the bottom of the anoxic denitrification precipitation zone (16), and the top of the stripping reflux device (34) is connected to the aeration fan (27) through a pipeline.

8. A small integrated rural single-household sewage treatment device as claimed in claim 1, characterized in that: A submersible sewage pump (35) is arranged at the bottom of the clean water storage area (17), an overflow pipe (36) is arranged on the submersible sewage pump (35), and a liquid level control device is arranged on the inner wall of the clean water storage area (17), and the liquid level control device is electrically connected to the submersible sewage pump (35).

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