CN217479282U - Sewage treatment equipment for resource utilization of rural domestic sewage - Google Patents

Abstract

The utility model discloses a sewage treatment device for resource utilization of rural domestic sewage, which comprises a fertilizer taking tank and a comprehensive treatment tank, wherein an anoxic tank, an aerobic tank, a sludge return tank, a coarse sand filter tank and an active carbon filter tank which are sequentially communicated and arranged along the sewage flow direction are formed in the comprehensive treatment tank in a separated manner; the fertilizer taking tank is provided with a fertilizer taking port, and the wall of the fertilizer taking tank is provided with a water inlet pipe for introducing sewage and a sludge discharge pipe which is respectively communicated with the bottom of the anoxic tank, the aerobic tank, the coarse sand filter tank and the activated carbon filter tank. In the utility model, sewage is treated by the anoxic tank, the aerobic tank, the coarse sand filter tank and the active carbon filter tank in sequence, thus effectively reducing the rural sewage discharge concentration and the river pollutant load; when the fertilizer is needed, the sludge can be taken out from the fertilizer taking port for composting or made into dry-pellet fertilizer, and the treated sewage is matched with the irrigation of crops, so that the resource utilization of rural domestic sewage is realized.

Description

Sewage treatment equipment for resource utilization of rural domestic sewage

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to sewage treatment device for rural domestic sewage resource utilization.

Background

Rural domestic sewage is a main factor causing rural environmental pollution, and rural areas are characterized in that the water consumption per capita of residents is far lower than that of urban residents, the discharge capacity per capita of domestic sewage is also far lower than that of urban domestic sewage, but the mode of urban sewage treatment cannot be transplanted to rural areas due to regional restrictions.

At present, the treatment of rural domestic sewage at home and abroad mostly adopts a biological treatment system to remove and degrade harmful substances and polluted environment components in the domestic sewage for harmless treatment; however, the treatment effect of the existing rural sewage treatment equipment is poor, the treated sewage is still easy to pollute rivers after being discharged, the sewage is easy to block in the sewage treatment process, solid wastes need to be cleaned regularly, and the sewage is inconvenient to recycle and is difficult to realize; therefore, aiming at the fertilizer using requirement of the rural planting industry, a sewage treatment device capable of treating and recycling rural domestic sewage needs to be designed, so that the sewage pollution is solved, and the sewage is recycled.

Disclosure of Invention

The above-mentioned not enough to prior art, the to-be-solved technical problem of the utility model is to provide a sewage treatment device for rural domestic sewage utilization, solve present rural sewage treatment device and be difficult to realize sewage utilization's problem, gain the effect that reduces rural sewage discharge concentration and improve sewage utilization.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a sewage treatment device for resource utilization of rural domestic sewage comprises a fertilizer taking tank and a comprehensive treatment tank, wherein four partition walls are arranged in the comprehensive treatment tank at intervals, and the comprehensive treatment tank is partitioned by the four partition walls to form an anoxic tank, an aerobic tank, a sludge return tank, a coarse sand filter tank and an active carbon filter tank which are sequentially arranged along the sewage flow direction; the fertilizer taking tank is provided with a fertilizer taking opening and is communicated with a water inlet pipe for introducing sewage, and the fertilizer taking tank is respectively communicated with the bottoms of the anoxic tank, the aerobic tank, the coarse sand filtering tank and the active carbon filtering tank through sludge discharge pipes;

a submersible sewage pump is arranged in the fertilizer taking tank and is communicated with the bottom of the anoxic tank through a lifting pipe, a first overflow port is formed in the top of a partition wall between the anoxic tank and the aerobic tank, a first sewage through port is formed in the bottom of the partition wall between the aerobic tank and the sludge return tank, a second overflow port is formed in the top of the partition wall between the sludge return tank and the coarse sand filter tank, a second sewage through port is formed in the middle of the partition wall between the coarse sand filter tank and the active carbon filter tank, and the active carbon filter tank is communicated with a water outlet pipe.

Furthermore, an anoxic filler is arranged in the anoxic tank, an aerobic filler is arranged in the aerobic tank, a coarse sand filler is arranged in the coarse sand filtering tank, and an activated carbon filler is arranged in the activated carbon filtering tank.

Further, the anoxic filler is a disc-type biological filler, and the aerobic filler is a biochemical filler.

Furthermore, a detachable access cover is arranged at the fertilizer taking port, a water distributor is arranged at the bottom of the anoxic tank, two ends of the lifting pipe are respectively connected with the submersible sewage pump and the water distributor, and an aeration device is arranged at the bottom of the aerobic tank.

Furthermore, the height of the second overflow port is lower than that of the first overflow port, and the height of the water outlet pipe is lower than that of the second overflow port.

Furthermore, the width of the first sewage through hole is equal to that of the partition wall, a backflow inclined plane is arranged at the first sewage through hole, the upper end of the backflow inclined plane extends to the partition wall between the sludge backflow tank and the coarse sand filter tank, and the lower end of the backflow inclined plane extends to the bottom of the aerobic tank.

Furthermore, a blocking-preventing pipe is arranged in the coarse sand filter tank, the blocking-preventing pipe vertically penetrates through the coarse sand filler, and the upper end of the blocking-preventing pipe is higher than the coarse sand filler and lower than the second overflow port.

Furthermore, a first water collecting groove is formed in the position, corresponding to the first overflow port, of one surface, facing the anoxic tank, of the partition wall between the anoxic tank and the aerobic tank, and the width of the first water collecting groove is equal to that of the partition wall.

Furthermore, the sludge discharge pipe comprises a sludge discharge main pipe arranged below the comprehensive treatment tank, the output end of the sludge discharge main pipe is communicated with the fertilizer taking tank, the sludge discharge main pipe is connected with four sludge discharge branch pipes which are communicated with the bottoms of the anoxic tank, the aerobic tank, the coarse sand filter tank and the active carbon filter tank in a one-to-one manner, and the sludge discharge branch pipes form the input end of the sludge discharge main pipe.

Furthermore, the comprehensive treatment tank is positioned above the fertilizer taking tank, the lift pipe is provided with a sewage valve, and the four sludge discharge branch pipes are provided with sludge discharge valves.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model relates to a sewage treatment device for resource utilization of rural domestic sewage, which is characterized in that sewage temporarily stored in a fertilizer tank is taken to pass through an anoxic tank, an aerobic tank, a coarse sand filter tank and an active carbon filter tank in a comprehensive treatment tank in sequence, so that common pollutants and organic pollutants in the sewage can be effectively removed, and floating objects, suspended matters, particle impurities, colloidal substances and partial organic matters in the sewage are filtered; rural sewage treated by the sewage treatment equipment can reach corresponding discharge standards, the discharge concentration of the rural sewage can be effectively reduced, and the river pollutant load is reduced.

2. A sewage treatment device for rural domestic sewage utilization, the mud that deposits in the processing procedure, dead microorganism and dead good oxygen biomembrane return to getting fertile pond through the mud pipe in, when the useful fertile demand of rural planting industry, can open the access cover and will get the mud in the fertile pond and take out and carry out the compost treatment or make dry pill fertilizer, cooperate the sewage after this sewage treatment device handles to irrigate crops, can effectively solve present rural sewage treatment device and be difficult to realize the problem of sewage utilization, gain the effect that reduces rural sewage discharge concentration and improve sewage utilization.

3. In the sewage treatment equipment for resource utilization of rural domestic sewage, the backflow inclined plane is arranged at the first sewage through hole, so that the sludge can be effectively prevented from being blocked due to flowing to the coarse sand filter tank along with the sewage; in addition, the coarse sand filter tank and the activated carbon filter tank are respectively provided with an anti-blocking pipe, when coarse sand filler or activated carbon filler is blocked, the water level in the coarse sand filter tank and the activated carbon filter tank rises until the water level overflows the upper end of the anti-blocking pipe, sewage keeps flowing normally through the anti-blocking pipe, and sewage overflow caused by blocking can be effectively avoided, so that water and soil pollution and air pollution are caused.

Drawings

FIG. 1 is a schematic structural diagram of a sewage treatment plant for resource utilization of rural domestic sewage according to an embodiment;

wherein, the fertilizer taking tank 1, the fertilizer taking port 11, the water inlet pipe 12, the submersible sewage pump 13, the riser 14 and the sewage valve 15 are arranged; the device comprises a partition wall 2, a first sewage passing opening 21, a second sewage passing opening 22, a water outlet pipe 23, a first water receiving tank 24 and a second water receiving tank 25; the anaerobic tank 3, the anaerobic filler 31, the water distributor 32, the aerobic tank 4, the aerobic filler 41, the aeration device 42, the sludge reflux tank 5 and the reflux inclined plane 51; a coarse sand filter tank 6, a coarse sand filler 61, an active carbon filter tank 7, an active carbon filler 71 and an anti-blocking pipe 72; a sludge discharge main pipe 8, a sludge discharge branch pipe 81 and a sludge discharge valve 82.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1, a sewage treatment device for resource utilization of rural domestic sewage comprises a fertilizer taking tank 1 and a comprehensive treatment tank positioned above the fertilizer taking tank 1; four partition walls 2 are arranged in the comprehensive treatment tank at intervals, and the comprehensive treatment tank is partitioned by the four partition walls 2 to form an anoxic tank 3, an aerobic tank 4, a sludge reflux tank 5, a coarse sand filter tank 6 and an active carbon filter tank 7 which are sequentially arranged along the flowing direction of sewage;

a fertilizer taking port 11 is formed in the top wall of the fertilizer taking pool 1, and a detachable access cover (not shown in the figure) is arranged at the fertilizer taking port 11 so as to facilitate fertilizer taking and cleaning and maintenance of the fertilizer taking pool 1; a water inlet pipe 12 for introducing sewage and a sludge discharge pipe for introducing sludge are arranged on the wall of the fertilizer taking tank 1; the mud pipe is responsible for 8 including the row's mud of locating the integrated treatment pond below, the output of arranging mud and being responsible for 8 with get fertile pond 1 intercommunication, it is connected with one to one and oxygen deficiency pond 3 on being responsible for 8 to arrange mud, good oxygen pond 4, four row's mud branch pipes 81 of 7 bottoms intercommunications of coarse sand filter tank 6 and active carbon filter tank, it forms the input of arranging mud and being responsible for 8 to arrange mud branch pipe 81, so that with oxygen deficiency pond 3, good oxygen pond 4, the mud that deposits at the bottom of the pool in coarse sand filter tank 6 and the active carbon filter tank 7 causes and gets fertile pond 1, all be equipped with mud valve 82 on four row's mud branch pipes 81 so that later stage clearance and maintenance.

A submersible sewage pump 13 is arranged in the fertilizer taking tank 1, the submersible sewage pump 13 is communicated with the bottom of the anoxic tank 3 through a lifting pipe 14, and a sewage valve 15 is arranged on the lifting pipe 14; the middle part of the liquid level of the anoxic tank 3 is provided with an anoxic filler 31, the top of the partition wall 2 between the anoxic tank 3 and the aerobic tank 4 is provided with a first overflow port, in the embodiment, the anoxic filler 31 adopts a disc type biological filler, the bottom of the anoxic tank 3 is provided with a water distributor 32, two ends of the riser 14 are respectively connected with the submersible sewage pump 13 and the water distributor 32, and by arranging the water distributor 32, sewage can be uniformly output at the bottom of the anoxic tank 3, so that the sewage can be better contacted with the biological filler; the middle part of the liquid level of the aerobic tank 4 is provided with aerobic filler 41, the bottom of the partition wall 2 between the aerobic tank 4 and the sludge return tank 5 is provided with a first sewage through opening 21, in the embodiment, the aerobic filler 41 adopts biochemical filler, the bottom of the aerobic tank 4 is provided with an aeration device 42, the aeration device 42 provides oxygen for the generation of a biological membrane in the aerobic tank 4 in a hollow fiber membrane aeration or micro-nano aeration mode and the like, so that the concentration of dissolved oxygen in the aerobic tank 4 is kept above 3 mg/l; the first sewage through opening 21 extends to two side walls of the comprehensive treatment tank, a backflow inclined plane 51 extending from the partition wall 2 between the sludge backflow tank 5 and the coarse sand filter tank 6 to the bottom of the aerobic tank 4 is arranged at the position of the first sewage through opening 21, when sludge at the bottom of the aerobic tank 4 flows to the sludge backflow tank 5 along with sewage, the sludge is deposited on the backflow inclined plane 51 under the action of gravity and returns to the bottom of the aerobic tank 4 along the backflow inclined plane 51 again, so that the sludge is prevented from flowing to the coarse sand filter tank 6 along with the sewage, and the concentration of activated sludge in the aerobic tank 4 is kept at 3000-5500 mg/l.

A second overflow port is arranged at the top of the partition wall 2 between the sludge reflux tank 5 and the coarse sand filter tank 6, and the height of the second overflow port is lower than that of the first overflow port; the middle part of the liquid level of the coarse sand filter tank 6 is provided with a coarse sand filler 61, and the middle part of the partition wall 2 between the coarse sand filter tank 6 and the active carbon filter tank 7 is provided with a second sewage through hole 22; the middle part of the liquid level of the activated carbon filter tank 7 is provided with an activated carbon filler 71, the wall of the activated carbon filter tank 7 is provided with a water outlet pipe 23, and the height of the water outlet pipe 23 is lower than that of the second overflow port;

in this embodiment, the coarse sand filter 6 and the activated carbon filter 7 are both provided with the anti-blocking pipes 72, the two anti-blocking pipes 72 vertically penetrate through the coarse sand filler 61 and the activated carbon filler 71 one by one, and the upper ends of the anti-blocking pipes 72 are higher than the coarse sand filler 61 and the activated carbon filler 71 and lower than the second overflow ports; when the coarse sand filler 61 or the activated carbon filler 71 is blocked, the water levels in the coarse sand filter tank 6 and the activated carbon filter tank 7 rise until the water levels overflow the upper end of the anti-blocking pipe 72, and sewage keeps flowing normally through the anti-blocking pipe 72, so that sewage overflow caused by blocking can be effectively avoided;

one side of the partition wall 2 between the anoxic tank 3 and the aerobic tank 4, which faces the anoxic tank 3, is provided with a first water receiving tank 24 corresponding to the first overflow port, one side of the partition wall 2 between the sludge return tank 5 and the coarse sand filtering tank 6, which faces the sludge return tank 5, is provided with a second water receiving tank 25 corresponding to the second overflow port, and two ends of the first water receiving tank 24 and the second water receiving tank 25 are equally divided and respectively extend to two side walls of the comprehensive treatment tank.

Be convenient for understand the utility model a sewage treatment device for rural domestic sewage resource utilizes introduces sewage treatment device and handles rural domestic sewage's flow as follows:

rural domestic sewage is collected by a pipeline and then flows into the fertilizer taking tank through the water inlet pipe, a submerged sewage pump in the fertilizer taking tank is conveyed into a water distributor at the bottom of the anoxic tank through a lifting pipe, and the sewage is uniformly distributed to the bottom of the anoxic tank through the water distributor;

the dissolved oxygen concentration in the anoxic tank is kept at 0.2-0.5 mg/l, the disc-type biological filler in the anoxic tank is a carrier for microbial growth, a large number of active microorganisms exist on the surface of the disc-type biological filler, sewage flows from bottom to top in the anoxic tank, pollutants in the sewage are removed through metabolism of the active microorganisms, naturally dead microorganisms and partial sludge are precipitated to the bottom of the anoxic tank and are conveyed into a fertilizer taking tank through a sludge discharge pipe, and the upper-layer sewage is collected by a water collecting tank and then uniformly flows to the aerobic tank from a first overflow port;

sewage flows from top to bottom in the aerobic tank, the sewage is contacted with biochemical filler with a large amount of aerobic biofilms, a large amount of organic pollutants are removed in the contact process, the aerobic biofilms die and part of sludge is precipitated to the bottom of the aerobic tank, an aeration device at the bottom of the aerobic tank provides oxygen for the generation of the biofilms in the aerobic tank in modes of hollow fiber membrane aeration or micro-nano aeration and the like, so that the concentration of dissolved oxygen in the aerobic tank is kept above 3mg/l, and the sewage treated by the biochemical filler enters a sludge reflux tank through a first sewage inlet;

the sewage flows from bottom to top in the sludge return tank, the upper layer sewage is collected by the water collecting tank and then uniformly flows to the coarse sand filter tank from the second overflow port, when the sludge at the bottom of the aerobic tank flows to the sludge return tank along with the sewage, the sludge is precipitated onto the return inclined plane under the action of gravity and returns to the bottom of the aerobic tank along the return inclined plane again, so that the sludge is prevented from being blocked by flowing to the coarse sand filter tank along with the sewage, and the concentration of the activated sludge in the aerobic tank is kept at 3000-5500 mg/l;

the coarse sand filtering tank is filled with coarse sand with the thickness of 0.8-1.3 m and the particle size of more than 1mm, sewage flows from top to bottom in the coarse sand filtering tank, most of floating matters and suspended matters are intercepted when the sewage passes through the coarse sand filler, then the sewage enters the activated carbon filtering tank through the second sewage inlet, the activated carbon filtering tank is filled with activated carbon filler with the thickness of 0.5-0.8 m, the sewage flows from bottom to top in the activated carbon filtering tank, a large amount of particulate impurities, colloidal substances and partial organic matters are adsorbed by the sewage through the activated carbon filler, the water quality of effluent is further ensured, and finally the filtered sewage is discharged to a designated place through the water outlet pipe; vertical anti-blocking pipes are arranged in the coarse sand filtering tank and the activated carbon filtering tank, when coarse sand filler or activated carbon filler is blocked, the water levels in the coarse sand filtering tank and the activated carbon filtering tank rise until the water levels overflow the upper ends of the anti-blocking pipes, and sewage keeps flowing normally through the anti-blocking pipes, so that sewage overflow caused by blocking can be effectively avoided, and water and soil pollution and air pollution are caused;

rural sewage treated by the sewage treatment equipment can reach corresponding discharge standards, the discharge concentration of the rural sewage can be effectively reduced, and the river pollutant load is reduced; the sludge, dead microorganisms and dead aerobic biomembranes precipitated at the bottoms of the anoxic tank, the aerobic tank, the coarse sand filter tank and the active carbon filter tank return to the fertilizer taking tank through the sludge discharge pipe, when the rural planting industry has a need for useful fertilizer, the access cover can be opened to take out the sludge in the fertilizer taking tank for composting or making into dry-pellet fertilizer, and the sewage treated by the sewage treatment equipment is matched to irrigate crops.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims (10)

1. A sewage treatment device for resource utilization of rural domestic sewage is characterized in that: the device comprises a fertilizer taking tank and a comprehensive treatment tank, wherein four partition walls are arranged at intervals in the comprehensive treatment tank, and the comprehensive treatment tank is partitioned by the four partition walls to form an anoxic tank, an aerobic tank, a sludge reflux tank, a coarse sand filter tank and an active carbon filter tank which are sequentially arranged along the flowing direction of sewage; the fertilizer taking tank is provided with a fertilizer taking opening and is communicated with a water inlet pipe for introducing sewage, and the fertilizer taking tank is respectively communicated with the oxygen-poor tank, the aerobic tank, the coarse sand filter tank and the bottom of the active carbon filter tank through sludge discharge pipes;

the fertilizer taking tank is internally provided with a submersible sewage pump which is communicated with the bottom of the anoxic tank through a lifting pipe, the top of a partition wall between the anoxic tank and the aerobic tank is provided with a first overflow port, the bottom of the partition wall between the aerobic tank and the sludge return tank is provided with a first sewage through port, the top of the partition wall between the sludge return tank and the coarse sand filter tank is provided with a second overflow port, the middle of the partition wall between the coarse sand filter tank and the active carbon filter tank is provided with a second sewage through port, and the active carbon filter tank is communicated with a water outlet pipe.

2. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: an anoxic filler is arranged in the anoxic tank, an aerobic filler is arranged in the aerobic tank, a coarse sand filler is arranged in the coarse sand filter tank, and an active carbon filler is arranged in the active carbon filter tank.

3. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 2, characterized in that: the anoxic filler is a disc-type biological filler, and the aerobic filler is a biochemical filler.

4. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: the fertilizer taking port is provided with a detachable access cover, the bottom of the anoxic tank is provided with a water distributor, two ends of the riser are respectively connected with the submersible sewage pump and the water distributor, and the bottom of the aerobic tank is provided with an aeration device.

5. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: the height of the second overflow port is lower than that of the first overflow port, and the height of the water outlet pipe is lower than that of the second overflow port.

6. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: the first sewage through hole is as wide as the partition wall, a backflow inclined plane is arranged at the first sewage through hole, the upper end of the backflow inclined plane extends to the partition wall between the sludge backflow pool and the coarse sand filtering pool, and the lower end of the backflow inclined plane extends to the bottom of the aerobic pool.

7. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: the coarse sand filter tank is internally provided with an anti-blocking pipe which vertically penetrates through the coarse sand filler, and the upper end of the anti-blocking pipe is higher than the coarse sand filler and lower than the second overflow port.

8. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: a first water collecting tank is arranged at a position, corresponding to the first overflow port, of one surface of the partition wall between the anoxic tank and the aerobic tank, facing the anoxic tank, and the first water collecting tank and the partition wall are equal in width.

9. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 1, characterized in that: the sludge discharge pipe comprises a sludge discharge main pipe arranged below the comprehensive treatment tank, the output end of the sludge discharge main pipe is communicated with the fertilizer taking tank, the sludge discharge main pipe is connected with four sludge discharge branch pipes communicated with the bottom of the anoxic tank, the aerobic tank, the coarse sand filter tank and the active carbon filter tank in a one-to-one mode, and the sludge discharge branch pipes form the input end of the sludge discharge main pipe.

10. The sewage treatment equipment for resource utilization of rural domestic sewage according to claim 9, characterized in that: the comprehensive treatment tank is positioned above the fertilizer taking tank, the lift pipe is provided with a sewage valve, and the four sludge discharge branch pipes are provided with sludge discharge valves.

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