Household recycling sewage treatment device

Abstract

The utility model provides a household resourceful sewage treatment device which is characterized in that the water inlet end of a water inlet pipe is connected with a resident house sewage source, the water outlet end of the water inlet pipe is communicated with a sediment tank, a first water passing pipe is connected between the sediment tank and a hydrolysis acidification tank, a second water passing pipe is connected between the hydrolysis acidification tank and an anaerobic fermentation tank, and the anaerobic fermentation tank is communicated with a reuse water tank; combined filler is arranged in the hydrolysis acidification pool, polyurethane filler is arranged in the anaerobic fermentation pool, a first drainage pipe is connected between the reuse water pool and the multi-medium filter pool, one end of a second drainage pipe is communicated with the multi-medium filter pool, and the other end of the second drainage pipe is connected with the outside. Sewage sequentially passes through the hydrolysis acidification tank, the anaerobic fermentation tank, the reuse water tank and the multi-medium filter tank, COD (Chemical Oxygen Demand), ammonia nitrogen and total phosphorus in the sewage are removed under the fermentation reaction and adsorption of the combined filler, the polyurethane filler, the gravel layer, the volcanic rock layer and the ceramsite layer, and then the sewage is discharged through a second drainage pipe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sewage treatment technical field, more specifically, relate to a kind of domestic resourceful sewage treatment device. BACKGROUND

[0002] Rural sewage is mainly composed of rural domestic sewage and rural production wastewater. Rural domestic sewage is mainly the sewage generated in the process of villagers' life, and the water consumption is directly affected by living conditions, living habits, seasons and other factors, such as feces, shower, household kitchen and washing sewage. With the rapid economic development, rural sewage pollution is imminent, and the state has introduced many policies to strengthen the management of rural domestic sewage. China is vast, and the layout, terrain and environment of villages in different places are different. For some mountainous areas, areas where construction cannot be excavated, areas where the river channel is too much and not suitable for large pipe network collection, and areas where villagers live very scattered, there is currently no targeted domestic non-excavation treatment equipment.

[0003] In the prior art, the traditional process has low operating load, and it is difficult to achieve the discharge standard for the concentration of effluent pollutants, causing water pollution, low decontamination capacity, high investment cost, high operating cost, and it is difficult to achieve the discharge standard for the treated sewage. CONTENT OF THE UTILITY MODEL

[0004] Therefore, in order to solve the above technical problems, the utility model provides a domestic resourceful sewage treatment device, including inlet pipe 10, first water pipe 20, second water pipe 30, sludge tank 40, hydrolysis acidification tank 50, anaerobic fermentation tank 60, reuse water tank 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, the position height of inlet pipe 10 is higher than the position of first water pipe 20, second water pipe 30, first drain pipe 90, second drain pipe 100, the water inlet end of inlet pipe 10 is connected with domestic sewage source, the water outlet end of inlet pipe 10 is communicated with sludge tank 40, the water inlet end of first water pipe 20 is communicated with the lower part of sludge tank 40, the water outlet end of first water pipe 20 is communicated with the upper part of hydrolysis acidification tank 50, the water inlet end of second water pipe 30 is communicated with the lower part of hydrolysis acidification tank 50, the water outlet end of second water pipe 30 is communicated with the upper part of anaerobic fermentation tank 60, anaerobic fermentation tank 60 is communicated with reuse water tank 70, hydrolysis acidification tank 50 is equipped with combined filler 110, anaerobic fermentation tank 60 is equipped with polyurethane filler 120, the water inlet end of first drain pipe 90 is connected with reuse water tank 70, the water outlet end of first drain pipe 90 is connected with multi-medium filter tank 80, the water inlet end of second drain pipe 100 is communicated with the lower part of multi-medium filter tank 80, the water outlet end of second drain pipe 100 is connected with outside, the gravel layer 130, the volcanic rock layer 140, the ceramsite layer 150 are sequentially laid from below to above in multi-medium filter tank 80, the upper part of ceramsite layer 150 is equipped with soil layer 160, when sewage enters sludge tank 40 from inlet pipe 10, mud and water are separated, sewage passes through hydrolysis acidification tank 50, anaerobic fermentation tank 60, reuse water tank 70 and multi-medium filter tank 80 in turn, after the fermentation reaction and adsorption of combined filler 110, polyurethane filler 120, gravel layer 130, volcanic rock layer 140, ceramsite layer 150, COD, ammonia nitrogen, total phosphorus in sewage are removed, and are discharged through second drain pipe 100, sewage uses anaerobic fermentation process, removes COD pollutants in sewage, retains effective N, P resources, is used for domestic vegetable planting and irrigation, achieves effective resource recycling, not only improves the decontamination capacity, simultaneously, equipment investment, installation cost are reduced, the scope is wider, installation is more flexible.

[0005] The utility model provides a kind of domestic resourceful sewage treatment device, including inlet pipe 10, first water pipe 20, second water pipe 30, sludge tank 40, hydrolytic acidification tank 50, anaerobic fermentation tank 60, reuse water tank 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, the position height of the inlet pipe 10 is higher than the position of the first water pipe 20, the second water pipe 30, the first drain pipe 90, the second drain pipe 100, the water inlet end of the inlet pipe 10 is connected with resident house sewage source, the water outlet end of the inlet pipe 10 is communicated with the sludge tank 40, the water inlet end of the first water pipe 20 is communicated with the lower part of the sludge tank 40, the water outlet end of the first water pipe 20 is communicated with the upper part of the hydrolytic acidification tank 50, the water inlet end of the second water pipe 30 is communicated with the lower part of the hydrolytic acidification tank 50, the water outlet end of the second water pipe 30 is communicated with the upper part of the anaerobic fermentation tank 60, the anaerobic fermentation tank 60 is communicated with the reuse water tank 70, the hydrolytic acidification tank 50 is equipped with combined filler 110, the anaerobic fermentation tank 60 is equipped with polyurethane filler 120, the water inlet end of the first drain pipe 90 is connected with the reuse water tank 70, the water outlet end of the first drain pipe 90 is connected with the multi-medium filter tank 80, the water inlet end of the second drain pipe 100 is communicated with the lower part of the multi-medium filter tank 80, the water outlet end of the second drain pipe 100 is connected with outside, the multi-medium filter tank 80 is sequentially laid gravel layer 130, volcanic rock layer 140, ceramsite layer 150 from below to above in, the upper part of the ceramsite layer 150 is equipped with soil layer 160, in sewage from the inlet pipe 10 enters the sludge tank 40, carries out mud-water separation, sewage sequentially passes through the hydrolytic acidification tank 50, the anaerobic fermentation tank 60, the reuse water tank 70 and the multi-medium filter tank 80, in the fermentation reaction and adsorption of the combined filler 110, the polyurethane filler 120, the gravel layer 130, the volcanic rock layer 140, the ceramsite layer 150, after the removal of COD, ammonia nitrogen, total phosphorus in sewage, by the second drain pipe 100 is discharged.

[0006] Further, the combined filler 110 in the hydrolytic acidification tank 50 is provided with multiple rows, and is uniformly arranged, for increasing the contact area of sewage and the combined filler 110, sufficient reaction, through anaerobic reaction, larger particle pollutants in sewage are decomposed into small molecule pollutants.

[0007] Further, the polyurethane filler 120 is spherical polyurethane filler in shape, increases the contact area of sewage and the polyurethane filler 120, through the fermentation reaction of anaerobic microorganism attached on the polyurethane filler 120, removes COD pollutants in sewage.

[0008] Further, the hydrolysis acidification tank 50 and the upper part of the anaerobic fermentation tank 60 are connected with a filler baffle 170, and the filler baffle 170 is arranged above the first water pipe 20 and the second water pipe 30, and the filler baffle 170 is used to prevent the combined filler 110 in the hydrolysis acidification tank 50 and the polyurethane filler 120 in the anaerobic fermentation tank 60 from floating upward.

[0009] Further, the top of the connection part between the sediment tank 40 and the hydrolysis acidification tank 50 is provided with a first inspection hole 180, and the top of the connection part between the anaerobic fermentation tank 60 and the recycled water tank 70 is provided with a second inspection hole 190, which is used for later maintenance or filler.

[0010] Further, the multi-medium filter tank 80 is provided with a perforated water distribution pipe 200, the perforated water distribution pipe 200 is arranged on the upper part of the ceramsite layer 150, the water outlet end of the first drain pipe 90 is communicated with the perforated water distribution pipe 200, and the perforated water distribution pipe 200 is used for sewage diversion and pressure regulation to ensure stable sewage flow.

[0011] Further, the ceramsite layer 150 and the soil layer 160 are provided with a geotextile 210, and the geotextile 210 is used to isolate the upper part of the soil layer 160 and the ceramsite layer 150.

[0012] Further, the inner side wall of the multi-medium filter tank 80 is provided with a PE anti-seepage film 220, and the PE anti-seepage film 220 is used to prevent sewage loss or seepage.

[0013] Further, the side of the multi-medium filter tank 80 close to the second drain pipe 100 is provided with a ventilation pipe 230, the air inlet end of the ventilation pipe 230 is arranged on the lower part of the gravel layer 130, the air inlet end of the ventilation pipe 230 is away from the water inlet end of the second drain pipe 100, the air outlet end of the ventilation pipe 230 is communicated with the outside and is higher than the ground, and the ventilation pipe 230 is used to effectively discharge gas to ensure the continuity of sewage drainage.

[0014] Further, the ventilation pipe 230 is in the shape of L to ensure the stability of ventilation.

[0015] The utility model discloses a beneficial effect: the utility model provides a kind of domestic resourceful sewage treatment device, including inlet pipe 10, first water pipe 20, second water pipe 30, sludge tank 40, hydrolytic acidification tank 50, anaerobic fermentation tank 60, reuse water pool 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, the position height of the inlet pipe 10 is higher than the position of the first water pipe 20, the second water pipe 30, the first drain pipe 90, the second drain pipe 100, the water inlet end of the inlet pipe 10 is connected with resident house sewage source, the water outlet end of the inlet pipe 10 is communicated with the sludge tank 40, the water inlet end of the first water pipe 20 is communicated with the lower part of the sludge tank 40, the water outlet end of the first water pipe 20 is communicated with the upper part of the hydrolytic acidification tank 50, the water inlet end of the second water pipe 30 is communicated with the lower part of the hydrolytic acidification tank 50, the water outlet end of the second water pipe 30 is communicated with the upper part of the anaerobic fermentation tank 60, the anaerobic fermentation tank 60 is communicated with the reuse water pool 70, the hydrolytic acidification tank 50 is equipped with combined filler 110, the anaerobic fermentation tank 60 is equipped with polyurethane filler 120, the water inlet end of the first drain pipe 90 is connected with the reuse water pool 70, the water outlet end of the first drain pipe 90 is connected with the multi-medium filter tank 80, the water inlet end of the second drain pipe 100 is communicated with the lower part of the multi-medium filter tank 80, the water outlet end of the second drain pipe 100 is connected with outside, the multi-medium filter tank 80 is sequentially laid from lower to upper gravel layer 130, volcanic rock layer 140, ceramsite layer 150, the upper part of the ceramsite layer 150 is equipped with soil cover layer 160, in the sludge tank 40 of the inlet pipe 10 from sewage, mud-water separation is carried out, sewage is sequentially passed through the hydrolytic acidification tank 50, the anaerobic fermentation tank 60, the reuse water pool 70 and the multi-medium filter tank 80, under the fermentation reaction and adsorption of the combined filler 110, the polyurethane filler 120, the gravel layer 130, the volcanic rock layer 140, the ceramsite layer 150, after the removal of COD, ammonia nitrogen, total phosphorus in sewage, is discharged through the second drain pipe 100, sewage uses anaerobic fermentation process, removes COD pollutant in sewage, retains effective N, P resources, is used for resident vegetable, irrigation, achieves resource effective recycling, not only improve the ability of pollution removal, while equipment investment, installation cost reduces, more wide range, installation is more flexible, because the reuse water pool is set, can also be used for resident daily irrigation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the utility model domestic resourceful sewage treatment device.

[0017] Figure 2 It is a top view of the utility model domestic resourceful sewage treatment device.

[0018] Main element symbol explanation: water inlet pipe 10, first water pipe 20, second water pipe 30, sludge tank 40, hydrolysis acidification tank 50, anaerobic fermentation tank 60, reuse water tank 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, combined filler 110, polyurethane filler 120, gravel layer 130, volcanic rock layer 140, ceramsite layer 150, soil covering layer 160, filler baffle 170, first manhole 180, second manhole 190, perforated water distribution pipe 200, geotextile 210, PE impermeable membrane 220, ventilation pipe 230.

[0019] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0020] The following examples are described to assist in the understanding of the present application, the examples are not and should not be interpreted as limiting the protection scope of the present application in any way.

[0021] In the following description, those skilled in the art will recognize that components can be described as separate functional units (which can include sub-units), but those skilled in the art will recognize that various components or portions thereof can be divided into separate components, or can be integrated together (including integrated within a single system or component).

[0022] At the same time, the connection between the components or systems is not intended to be limited to direct connection, on the contrary, the data between these components can be modified, re-formatted, or otherwise changed by intermediate components. In addition, additional or fewer connections can be used. It should also be noted that the terms "coupled", "connected", or "input" should be understood to include direct connection, indirect connection through one or more intermediate devices, and wireless connection. Example 1

[0023] As shown in FIG. 1, it is a front view of the household resourceful sewage treatment device of the present application; as shown in FIG. 2, it is a top view of the household resourceful sewage treatment device of the present application. Figure 1 As shown in FIG. 1, it is a front view of the household resourceful sewage treatment device of the present application; as shown in FIG. 2, it is a top view of the household resourceful sewage treatment device of the present application. Figure 2 As shown in FIG. 1, it is a front view of the household resourceful sewage treatment device of the present application; as shown in FIG. 2, it is a top view of the household resourceful sewage treatment device of the present application.

[0024] The utility model provides a kind of domestic resourceful sewage treatment device, including inlet pipe 10, first water pipe 20, second water pipe 30, sludge tank 40, hydrolytic acidification tank 50, anaerobic fermentation tank 60, reuse water tank 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, the position height of the inlet pipe 10 is higher than the position of the first water pipe 20, the second water pipe 30, the first drain pipe 90, the second drain pipe 100, the water inlet end of the inlet pipe 10 is connected with resident house sewage source, the water outlet end of the inlet pipe 10 is communicated with the sludge tank 40, the water inlet end of the first water pipe 20 is communicated with the lower part of the sludge tank 40, the water outlet end of the first water pipe 20 is communicated with the upper part of the hydrolytic acidification tank 50, the water inlet end of the second water pipe 30 is communicated with the lower part of the hydrolytic acidification tank 50, the water outlet end of the second water pipe 30 is communicated with the upper part of the anaerobic fermentation tank 60, the anaerobic fermentation tank 60 is communicated with the reuse water tank 70, the hydrolytic acidification tank 50 is equipped with combined filler 110, the anaerobic fermentation tank 60 is equipped with polyurethane filler 120, the water inlet end of the first drain pipe 90 is connected with the reuse water tank 70, the water outlet end of the first drain pipe 90 is connected with the multi-medium filter tank 80, the water inlet end of the second drain pipe 100 is communicated with the lower part of the multi-medium filter tank 80, the water outlet end of the second drain pipe 100 is connected with outside, the multi-medium filter tank 80 is sequentially laid gravel layer 130, volcanic rock layer 140, ceramsite layer 150 from below to above, the upper part of the ceramsite layer 150 is equipped with soil layer 160, in sewage from the inlet pipe 10 enters the sludge tank 40, carries out mud-water separation, sewage sequentially passes through the hydrolytic acidification tank 50, the anaerobic fermentation tank 60, the reuse water tank 70 and the multi-medium filter tank 80, in the fermentation reaction and adsorption of the combined filler 110, the polyurethane filler 120, the gravel layer 130, the volcanic rock layer 140, the ceramsite layer 150, after the removal of COD, ammonia nitrogen, total phosphorus in sewage, it is discharged through the second drain pipe 100.

[0025] The combined filler 110 in the hydrolytic acidification tank 50 is equipped with multiple rows, and is uniformly arranged, for increasing the contact area of sewage and the combined filler 110, sufficient reaction, through anaerobic reaction, larger particle pollutants in sewage are decomposed into small molecule pollutants.

[0026] The polyurethane filler 120 is spherical polyurethane filler, which increases the contact area of sewage and the polyurethane filler 120, through the fermentation reaction of anaerobic microorganisms attached to the polyurethane filler 120, removes COD pollutants in sewage.

[0027] The hydrolysis acidification tank 50 and the upper part of the anaerobic fermentation tank 60 are connected with a filler baffle 170, which is placed above the first water pipe 20 and the second water pipe 30, and is used to prevent the combined filler 110 in the hydrolysis acidification tank 50 and the polyurethane filler 120 in the anaerobic fermentation tank 60 from floating upwards.

[0028] The top part of the connection between the sediment tank 40 and the hydrolysis acidification tank 50 is provided with a first maintenance opening 180, and the top part of the connection between the anaerobic fermentation tank 60 and the recycled water tank 70 is provided with a second maintenance opening 190, which is used for later maintenance or filler.

[0029] The multi-medium filter tank 80 is provided with a perforated water distribution pipe 200, which is placed on the upper part of the ceramsite layer 150, the water outlet end of the first drain pipe 90 is communicated with the perforated water distribution pipe 200, and the perforated water distribution pipe 200 is used for sewage diversion and pressure regulation to ensure stable sewage flow.

[0030] The soil cloth 210 is arranged between the ceramsite layer 150 and the soil layer 160, which is used to isolate the upper part of the soil layer 160 and the ceramsite layer 150.

[0031] The PE anti-seepage film 220 is arranged on the inner side wall of the multi-medium filter tank 80, which is used to prevent sewage loss or seepage.

[0032] The ventilation pipe 230 is arranged on one side of the multi-medium filter tank 80 close to the second drain pipe 100, the air inlet end of the ventilation pipe 230 is placed on the lower part of the gravel layer 130, and the air inlet end of the ventilation pipe 230 is away from the water inlet end of the second drain pipe 100, the air outlet end of the ventilation pipe 230 is communicated with the outside and is higher than the ground, and the ventilation pipe 230 is used to effectively discharge gas to ensure the continuity of sewage drainage.

[0033] The ventilation pipe 230 is L-shaped to ensure the stability of ventilation.

[0034] The utility model discloses a beneficial effect: the utility model provides a kind of domestic resourceful sewage treatment device, including inlet pipe 10, first water pipe 20, second water pipe 30, sediment tank 40, hydrolytic acidification tank 50, anaerobic fermentation tank 60, reuse water pool 70, multi-medium filter tank 80, first drain pipe 90, second drain pipe 100, the position height of the inlet pipe 10 is higher than the position of the first water pipe 20, the second water pipe 30, the first drain pipe 90, the second drain pipe 100, the water inlet end of the inlet pipe 10 is connected with resident house sewage source, the water outlet end of the inlet pipe 10 is communicated with the sediment tank 40, the water inlet end of the first water pipe 20 is communicated with the lower part of the sediment tank 40, the water outlet end of the first water pipe 20 is communicated with the upper part of the hydrolytic acidification tank 50, the water inlet end of the second water pipe 30 is communicated with the lower part of the hydrolytic acidification tank 50, the water outlet end of the second water pipe 30 is communicated with the upper part of the anaerobic fermentation tank 60, the anaerobic fermentation tank 60 is communicated with the reuse water pool 70, the hydrolytic acidification tank 50 is equipped with combined filler 110, the anaerobic fermentation tank 60 is equipped with polyurethane filler 120, the water inlet end of the first drain pipe 90 is connected with the reuse water pool 70, the water outlet end of the first drain pipe 90 is connected with the multi-medium filter tank 80, the water inlet end of the second drain pipe 100 is communicated with the lower part of the multi-medium filter tank 80, the water outlet end of the second drain pipe 100 is connected with outside, gravel layer 130, volcanic rock layer 140, ceramsite layer 150 are sequentially laid from below to above in the multi-medium filter tank 80, the upper part of the ceramsite layer 150 is equipped with soil layer 160, when sewage enters the sediment tank 40 from the inlet pipe 10, mud-water separation is carried out, sewage sequentially passes through the hydrolytic acidification tank 50, the anaerobic fermentation tank 60, the reuse water pool 70 and the multi-medium filter tank 80, after the fermentation reaction and adsorption of the combined filler 110, the polyurethane filler 120, the gravel layer 130, the volcanic rock layer 140 and the ceramsite layer 150, COD, ammonia nitrogen and total phosphorus in sewage are removed, and are discharged through the second drain pipe 100, sewage uses anaerobic fermentation process, removes COD pollutants in sewage, retains effective N and P resources, is used for resident to grow vegetables and irrigate, achieves effective resource recycling, not only improves the decontamination capacity, simultaneously, equipment investment and installation cost are reduced, the scope is wider, and installation is more flexible, since the reuse water pool is arranged, it can also be used for daily irrigation of residents.

[0035] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A household wastewater treatment device for resource recovery, comprising an inlet pipe (10), a first through pipe (20), a second through pipe (30), a sedimentation tank (40), a hydrolysis acidification tank (50), an anaerobic fermentation tank (60), a reclaimed water tank (70), a multi-media filter (80), a first drain pipe (90), and a second drain pipe (100), wherein the inlet pipe (10) is positioned at a height higher than the first through pipe (20), the second through pipe (30), the first drain pipe (90), and the second drain pipe (100), characterized in that: The water inlet end of the water inlet pipe (10) is connected with a domestic sewage source, the water outlet end of the water inlet pipe (10) is communicated with the sediment tank (40), the water inlet end of the first water pipe (20) is communicated with the lower part of the sediment tank (40), the water outlet end of the first water pipe (20) is communicated with the upper part of the hydrolysis acidification tank (50), the water inlet end of the second water pipe (30) is communicated with the lower part of the hydrolysis acidification tank (50), the water outlet end of the second water pipe (30) is communicated with the upper part of the anaerobic fermentation tank (60), the anaerobic fermentation tank (60) is communicated with the reuse water tank (70), the hydrolysis acidification tank (50) is provided with the combined filler (110), the anaerobic fermentation tank (60) is provided with the polyurethane filler (120), the water inlet end of the first drain pipe (90) is connected with the reuse water tank (70), the water outlet end of the first drain pipe (90) is connected with the multi-medium filter tank (80), the water inlet end of the second drain pipe (100) is communicated with the lower part of the multi-medium filter tank (80), the water outlet end of the second drain pipe (100) is connected with the outside, the multi-medium filter tank (80) is sequentially provided with the gravel layer (130), the volcanic rock layer (140) and the ceramsite layer (150) from bottom to top, the upper part of the ceramsite layer (150) is provided with the soil layer (160), after the sewage from the water inlet pipe (10) enters the sediment tank (40) and is subjected to mud-water separation, the sewage sequentially passes through the hydrolysis acidification tank (50), the anaerobic fermentation tank (60), the reuse water tank (70) and the multi-medium filter tank (80), after the COD, ammonia nitrogen and total phosphorus in the sewage are removed through the fermentation reaction and adsorption of the combined filler (110), the polyurethane filler (120), the gravel layer (130), the volcanic rock layer (140) and the ceramsite layer (150), the sewage is discharged through the second drain pipe (100).

2. A domestic resourceful wastewater treatment device as claimed in claim 1, wherein: The combined filler (110) in the hydrolysis acidification tank (50) is provided with multiple rows and is uniformly arranged at intervals.

3. A domestic resourceful wastewater treatment device as claimed in claim 2, wherein: The polyurethane filler (120) is spherical polyurethane filler, which increases the contact area of the sewage with the polyurethane filler (120) and removes the COD pollutants in the sewage through the fermentation reaction of the anaerobic microorganisms attached to the polyurethane filler (120).

4. A domestic resourceful wastewater treatment device as claimed in claim 3, wherein: The upper parts of the hydrolysis acidification tank (50) and the anaerobic fermentation tank (60) are connected with the filler baffle (170), and the filler baffle (170) is arranged above the first water pipe (20) and the second water pipe (30), and the filler baffle (170) is used for preventing the combined filler (110) in the hydrolysis acidification tank (50) and the polyurethane filler (120) in the anaerobic fermentation tank (60) from floating upward.

5. A domestic resource recovery sewage treatment device as claimed in claim 4, characterised in that: The top of the connection part of the sediment tank (40) and the hydrolysis acidification tank (50) is provided with the first inspection hole (180), and the top of the connection part of the anaerobic fermentation tank (60) and the reuse water tank (70) is provided with the second inspection hole (190), which is used for later maintenance or filler.

6. A domestic resourceful wastewater treatment device according to claim 5, characterized in that: The multi-medium filter tank (80) is provided with a perforated water distribution pipe (200), the perforated water distribution pipe (200) is arranged on the upper part of the ceramsite layer (150), the water outlet end of the first drain pipe (90) is communicated with the perforated water distribution pipe (200), and the perforated water distribution pipe (200) is used for sewage diversion and pressure regulation, so that the sewage flow is stable.

7. A domestic resourceful wastewater treatment device according to claim 6, characterized in that: The geotextile (210) is arranged between the ceramsite layer (150) and the soil layer (160), and is used for isolating the upper soil layer (160) from the ceramsite layer (150).

8. A domestic resourceful wastewater treatment device according to claim 7, characterized in that: The inner side wall of the multi-medium filter tank (80) is provided with a PE anti-seepage film (220), and the PE anti-seepage film (220) is used for preventing sewage from flowing out or seeping.

9. A domestic resource recovery sewage treatment device as claimed in claim 8, characterised in that: The multi-medium filter tank (80) is provided with a ventilation pipe (230) near one side of the second drain pipe (100), the air inlet end of the ventilation pipe (230) is arranged on the lower part of the gravel layer (130), the air inlet end of the ventilation pipe (230) is away from the water inlet end of the second drain pipe (100), the air outlet end of the ventilation pipe (230) is communicated with the outside and is higher than the ground, and the ventilation pipe (230) is used for effectively discharging gas and ensuring the continuity of sewage drainage.

10. A domestic resource recovery sewage treatment device as claimed in claim 9, characterised in that: The ventilation pipe (230) is L-shaped, so that the stability of ventilation is ensured.

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