CN216550044U

CN216550044U - Domestic sewage treatment device

Info

Publication number: CN216550044U
Application number: CN202220039451.6U
Authority: CN
Inventors: 姜廷亮; 吴玉杰; 张国臣; 魏鸿业
Original assignee: Beijing Zhisheng Environmental Technology Co ltd
Current assignee: Beijing Zhisheng Environmental Technology Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-05-17
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a domestic sewage treatment device which comprises a shell, a first inner cylinder, a second inner cylinder, aeration heads, a return pipe, an aeration pipe and a flow guide hopper, wherein the first inner cylinder is fixedly arranged in the shell, the lower part of the first inner cylinder and the inner wall of the shell are sealed, the second inner cylinder is fixedly arranged in the first inner cylinder, the positions, close to the lower surface, in the second inner cylinder are fixedly provided with the aeration heads, and the number of the aeration heads is multiple. The domestic sewage treatment device is low in investment and operation cost, easy to maintain and suitable for popularization and application, the treated sewage can be used for yard greening and dust fall recycling after reaching the standard, the device is designed into an upright structure, occupied land is saved, the device is easy to install, the device is provided with the return pipe, the sewage is enabled to circulate back and forth between the aerobic pool and the anoxic pool through buoyancy and water flow thrust generated by aeration, a return pump is not needed, a continuous aerobic and anoxic alternate reaction environment is realized, and denitrification reaction is facilitated.

Description

Domestic sewage treatment device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a domestic sewage treatment device.

Background

In the vast rural areas of China, due to factors such as regional differences and living habits, the quality and the quantity of domestic sewage fluctuate greatly, the difference is obvious, the water quality and the quantity of water fluctuate greatly impact a treatment system, the denitrification and dephosphorization effect is poor, in order to strengthen the denitrification and dephosphorization effect, a backflow system needs to be arranged in the process, but the backflow system increases the equipment investment and the operation and maintenance cost and difficulty, in rural areas where economic development is relatively backward and professional technicians lack, the domestic sewage treatment is trapped in a predicament, the energy consumption of a backflow pump is high, the occupied area is large, the maintenance is difficult, and the treatment effect is not stable enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a domestic sewage treatment device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a domestic sewage treatment device, includes shell, first inner tube, second inner tube, aeration head, back flow, aeration pipe and water conservancy diversion fill, first inner tube fixed mounting is in the inside of shell, and seals between the lower part of first inner tube and the inner wall of shell, second inner tube fixed mounting is in the inside of first inner tube, the inside of second inner tube is close to lower surface position fixed mounting and has aeration head, aeration head's quantity has a plurality of, and is circumference array evenly distributed, aeration head communicates each other, the inside of second inner tube is provided with aeration pipe, the one end and the aeration head intercommunication of aeration pipe, the other end upwards extends and passes the lateral wall of shell and stretch out to the outside, the inside central point of second inner tube puts and alternates and is equipped with the back flow, water conservancy diversion fill fixed mounting is in the lower surface position of first inner tube.

Preferably, the lower end of the return pipe extends into the diversion hopper, and a return pipe support is fixedly arranged between the outer wall surface of the return pipe and the inner wall surface of the second inner cylinder.

Preferably, a sludge discharge port is fixedly communicated with the position, close to the lower surface, of the outer surface of the shell, a water inlet is fixedly communicated with the position, close to the upper surface, of the outer surface of the shell, and a water outlet is fixedly communicated with the position, close to the upper surface, of the outer surface of the shell.

Preferably, the interior of the diversion hopper is provided with an anoxic tank, an anaerobic tank is arranged between the exterior of the diversion hopper and the interior of the shell below the first inner cylinder, and an aerobic tank is arranged between the interior of the second inner cylinder and the exterior of the return pipe.

Preferably, the position, close to the upper surface, of the surface of the side wall of the first inner cylinder is embedded with a water pipe, and an inner cylinder support is fixedly arranged between the first inner cylinder and the second inner cylinder.

Preferably, a primary sedimentation tank is arranged between the first inner cylinder and the second inner cylinder, and a secondary sedimentation tank is arranged between the outer surface of the first inner cylinder and the inner surface of the shell.

Compared with the prior art, the utility model has the beneficial effects that: the domestic sewage treatment device is low in investment and operation cost, easy to maintain and suitable for popularization and application, the treated sewage can be used for yard greening and dust fall recycling after reaching the standard, the device is designed into an upright structure, the occupied area is saved, the device is easy to install, the device is provided with the return pipe, the sewage is circulated back and forth between the aerobic pool and the anoxic pool through buoyancy and water flow thrust generated by aeration, a return pump is not needed, a continuous aerobic and anoxic alternate reaction environment is realized, and denitrification reaction is facilitated; the removal rates of the chemical oxygen demand, the biochemical oxygen demand, the ammonia nitrogen and the solid suspended matters in water can respectively reach 60-80%, 70-80%, 80-90% and 60-70%, the water quality of effluent can reach the first-level B standard in discharge Standard of pollutants for municipal wastewater treatment plant (GB18918-2002), the treatment effect of the device is stable, and the device does not need to be attended.

Drawings

FIG. 1 is a schematic perspective half-section view of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic perspective half-section view of the present invention.

In the figure: 1. a sludge discharge port; 2. an anoxic tank; 3. an anaerobic tank; 4. a water inlet; 5. a return pipe; 6. an aerobic tank; 7. a water pipe; 8. an aeration pipe; 9. a water outlet; 10. a housing; 11. a first inner cylinder; 12. an inner cylinder support; 13. a second inner barrel; 14. a first-stage sedimentation tank; 15. a secondary sedimentation tank; 16. an aeration head; 17. a return pipe bracket; 18. a flow guide hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a domestic sewage treatment device comprises a shell 10, a first inner barrel 11, a second inner barrel 13, aeration heads 16, a return pipe 5, aeration pipes 8 and a diversion hopper 18, wherein the first inner barrel 11 is fixedly arranged inside the shell 10, the lower part of the first inner barrel 11 and the inner wall of the shell 10 are sealed, the second inner barrel 13 is fixedly arranged inside the first inner barrel 11, the aeration heads 16 are fixedly arranged inside the second inner barrel 13 close to the lower surface, the number of the aeration heads 16 is a plurality, the aeration heads 16 are uniformly distributed in a circumferential array manner, the aeration heads 16 are communicated with each other, the aeration pipes 8 are arranged inside the second inner barrel 13, the aeration pipes 8 convey compressed air to the aeration heads 16, one end of each aeration pipe 8 is communicated with the aeration heads 16, the other end of each aeration pipe extends upwards and penetrates through the side wall of the shell 10 to extend out, the return pipe 5 is arranged at the center position inside the second inner barrel 13 in a penetrating manner, the return pipe 5 can be but not limited to plastic, stainless steel and carbon steel, in the aerobic tank 6, sewage overflows from the top of the aerobic tank 6 into the return pipe 5 through buoyancy and water flow thrust generated by aeration, flows out from the bottom of the return pipe 5 to the anoxic tank 2 and returns to the aerobic tank 6 again, and is circulated in a reciprocating manner in such a way that a return pump is not required to be arranged for backflow, so that a continuous aerobic and anoxic alternate reaction environment is realized, denitrification reaction is facilitated, meanwhile, when the sewage in the aerobic tank 6 flows to the lower opening of the return pipe 5 through the return pipe 5, the sewage is mixed with the water discharged from the anaerobic tank 3, the concentration of organic matters in the sewage is increased, a carbon source required by denitrification is supplemented, the diversion hopper 18 is fixedly arranged at the lower surface position of the first inner cylinder 11, the diversion hopper 18 is in a funnel shape with an upper opening and a lower opening, and can be but not limited to plastic, stainless steel and carbon steel, the diversion hopper 18 guides the primary sedimentation sludge to the lower opening of the diversion hopper 18 and falls into the anaerobic tank 3, the sludge and the effluent of the anaerobic tank 3 are reversely mixed to adsorb phosphorus in the sewage, and meanwhile, the flow guide hopper 18 leads the effluent of the anaerobic tank 3 to flow upwards and directly enter the aerobic tank 6, and leads the effluent of the aerobic tank 6 to flow into the primary sedimentation tank 14.

The lower end of the return pipe 5 extends into the guide hopper 18, and a return pipe bracket 17 is fixedly arranged between the outer wall surface of the return pipe 5 and the inner wall surface of the second inner cylinder 13.

The outer surface of the shell 10 is fixedly communicated with a sludge discharge port 1 near the lower surface, the outer surface of the shell 10 is fixedly communicated with a water inlet 4 below the lower surface of the first inner barrel 11, and the outer surface of the shell 10 is fixedly communicated with a water outlet 9 near the upper surface.

The inside of water conservancy diversion fill 18 sets up to oxygen deficiency pond 2, sets up to anaerobism pond 3 between the outside of water conservancy diversion fill 18 and the inside of shell 10 in the below of first inner tube 11, and anaerobism pond 3 is the downward flow, and sewage gets into by water inlet 4, flows to water conservancy diversion fill 18 end opening along the water conservancy diversion fill 18 outside, gets into reaction tank on next step, and impurity deposits 3 bottoms in the anaerobism pond in the sewage, regularly by mud discharge mouth 1 discharge, sets up to good oxygen pond 6 between the inside of second inner tube 13 and the outside of back flow 5.

The water pipe 7 is embedded and installed on the position, close to the upper surface, of the surface of the side wall of the first inner cylinder 11, and an inner cylinder support 12 is fixedly installed between the first inner cylinder 11 and the second inner cylinder 13.

A primary sedimentation tank 14 is arranged between the first inner cylinder 11 and the second inner cylinder 13, and a secondary sedimentation tank 15 is arranged between the outer surface of the first inner cylinder 11 and the inner surface of the shell 10.

Sewage enters the anaerobic tank 3 from the water inlet 4 to generate anaerobic reaction, partial pollutants are removed, the biochemical property of the sewage is improved, then the sewage flows upwards from the lower opening of the diversion hopper 18, passes through the anoxic tank 2 and then enters the aerobic tank 6, compressed air enters the aeration head 16 through the aeration pipe 8, under the aeration action of the aeration head 16, the aerobic reaction is generated, the sewage overflows from the top of the aerobic tank 6 through buoyancy and water flow thrust generated by aeration and enters the return pipe 5, flows out from the bottom of the return pipe 5 to the anoxic tank 2 and then returns to the aerobic tank 6 again, the reciprocating is carried out in such a way, the sewage is in an anoxic/aerobic dynamic circulation environment, the automatic return of nitrifying liquid is realized, the removal efficiency of nitrogen in the sewage is increased, organic matters are synchronously removed, the treated sewage enters the primary sedimentation tank 14 along with the continuous entering of the sewage, and most of activated sludge is settled, and the device slides to the lower opening of the diversion hopper 18 along the top of the diversion hopper 18 and is mixed with the upward flowing sewage, the activated sludge adsorbs phosphorus in the sewage and then sinks to the bottom of the anaerobic tank 3, the phosphorus in the sewage is removed, the sewage after primary precipitation flows into the secondary precipitation tank 15 through the water pipe 7, and after suspended matters in the water are further removed, the sewage is discharged through the water outlet 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a domestic sewage treatment device, includes shell (10), first inner tube (11), second inner tube (13), aeration head (16), back flow (5), aeration pipe (8) and water conservancy diversion fill (18), its characterized in that: the first inner cylinder (11) is fixedly arranged in the shell (10), the lower part of the first inner cylinder (11) is sealed with the inner wall of the shell (10), the second inner cylinder (13) is fixedly arranged in the first inner cylinder (11), aeration heads (16) are fixedly arranged in the second inner cylinder (13) close to the lower surface, the number of the aeration heads (16) is several, and are uniformly distributed in a circumferential array manner, the aeration heads (16) are communicated with each other, the second inner cylinder (13) is internally provided with aeration pipes (8), one end of the aeration pipe (8) is communicated with the aeration head (16), the other end extends upwards and penetrates through the side wall of the shell (10) to extend out to the outside, a return pipe (5) is inserted in the center of the inner part of the second inner cylinder (13), the flow guide hopper (18) is fixedly arranged on the lower surface of the first inner cylinder (11).

2. The domestic sewage treatment apparatus according to claim 1, wherein: the lower end of the return pipe (5) extends into the flow guide hopper (18), and a return pipe support (17) is fixedly arranged between the outer wall surface of the return pipe (5) and the inner wall surface of the second inner cylinder (13).

3. The domestic sewage treatment apparatus according to claim 1, wherein: the outer surface of the shell (10) is fixedly communicated with a sludge discharge port (1) at a position close to the lower surface, the outer surface of the shell (10) is fixedly communicated with a water inlet (4) at a position below the lower surface of the first inner barrel (11), and the outer surface of the shell (10) is fixedly communicated with a water outlet (9) at a position close to the upper surface.

4. The domestic sewage treatment apparatus according to claim 1, wherein: the anaerobic pool (3) is arranged between the outside of the flow guide hopper (18) and the inside of the shell (10) below the first inner cylinder (11), and the aerobic pool (6) is arranged between the inside of the second inner cylinder (13) and the outside of the return pipe (5).

5. The domestic sewage treatment apparatus according to claim 1, wherein: the lateral wall surface of first inner tube (11) is close to the upper surface position and inlays to establish and installs water pipe (7), first inner tube (11) with fixed mounting has inner tube support (12) between second inner tube (13).

6. The domestic sewage treatment apparatus according to claim 1, wherein: a primary sedimentation tank (14) is arranged between the first inner cylinder (11) and the second inner cylinder (13), and a secondary sedimentation tank (15) is arranged between the outer surface of the first inner cylinder (11) and the inner surface of the shell (10).