CN113968617B

CN113968617B - Inversion type multi-directional flow aerobic granular sludge water treatment device

Info

Publication number: CN113968617B
Application number: CN202110713260.3A
Authority: CN
Inventors: 张崭华; 张恒
Original assignee: Beijing Proviridia Technology Co Ltd
Current assignee: Beijing Proviridia Technology Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2023-09-19
Anticipated expiration: 2041-06-25
Also published as: CN113968617A

Abstract

An inverted multidirectional flow aerobic granular sludge water treatment device belongs to the technical field of water treatment equipment. Comprises an anoxic mixing zone which is communicated with a water inlet part; the aerobic zone is communicated with the anoxic mixing zone to form a first circulating waterway for water body flow; the sedimentation zone is communicated with the first circulating waterway and positioned at the downstream of the first circulating waterway; and the inlet end of the collecting reflux device is positioned in the sedimentation zone, and the outlet end of the collecting reflux device is communicated with the anoxic mixing zone. The invention is provided with the first circulating waterway so that various microorganisms can alternately enter the growth environment favorable for the microorganisms, the water purification treatment effect is enhanced, and the sedimentation zone is arranged to separate mud from water; meanwhile, a collecting and refluxing device is arranged to collect the sludge and suspended matters in the sedimentation zone, and the sludge and suspended matters are refluxed to the anoxic mixing zone through an outlet end, so that the concentration and the content of the sludge and suspended matters in the sedimentation zone are reduced, the concentration and the content of the sludge and suspended matters in the water discharged by the device are reduced, and the water purifying effect is improved.

Description

Inversion type multi-directional flow aerobic granular sludge water treatment device

Technical Field

The invention relates to the technical field of water treatment equipment, in particular to an inverted multidirectional flow aerobic granular sludge water treatment device.

Background

The existing circulation biochemical sewage treatment equipment is provided with an anoxic zone and an aerobic zone which are communicated to form circulation, and water circulates between the anoxic zone and the aerobic zone, so that various microorganisms can alternately enter a growth environment favorable to the circulation biochemical sewage treatment equipment, the growth environment unfavorable to the circulation biochemical sewage treatment equipment cannot be inhibited due to long-time existence, high biological activity is maintained, the sewage is subjected to efficient and rapid reaction, pollutants such as organic matters, nitrogen and phosphorus in the sewage are removed, and the sewage treatment effect is enhanced.

However, the water body after the water purification reaction is circulated still carries sludge and suspended matters, in the equipment in the prior art, the water body after the water purification reaction is introduced into a sedimentation zone provided with a sedimentation inclined tube, the sludge is removed through the separation of the sedimentation inclined tube and the sedimentation of the sedimentation zone, then the water body is introduced into a filtering zone provided with a filter material, and the suspended matters are removed through the filter material.

Disclosure of Invention

Therefore, the invention aims to overcome the defects that the filtering effect is reduced along with the increase of the service time and the cost is high and the manufacturing difficulty is high due to the fact that the circulating biochemical sewage treatment equipment filters suspended matters through the filtering area provided with the filter material in the prior art, thereby providing the inverted multidirectional-flow aerobic granular sewage treatment device.

The invention provides the following technical scheme:

an inverted multi-directional flow aerobic granular sludge water treatment device, comprising:

the main body is provided with a water inlet part and a water outlet part;

the anoxic mixing zone is arranged in the internal space of the main body and is communicated with the water inlet part;

the aerobic zone is arranged in the internal space of the main body and is communicated with the anoxic mixing zone to form a first circulating waterway for water body flow;

the sedimentation zone is arranged in the inner space of the main body, is communicated with the first circulating waterway and is positioned at the downstream of the first circulating waterway;

and the inlet end of the collecting and refluxing device is positioned in the sedimentation zone, and the outlet end of the collecting and refluxing device is communicated with the anoxic mixing zone.

Optionally, the collecting and refluxing device comprises:

the inlet end of the collecting hopper is positioned in the sedimentation zone, and the collecting hopper forms a collecting space;

And the balance pipe is provided with an inlet end positioned in the collecting space and an outlet end communicated with the anoxic mixing zone.

Optionally, the method further comprises:

and the inclined tube separation device is arranged in the sedimentation zone.

Optionally, the inclined tube separation device includes: the flow stabilizing part and the separating part are arranged at intervals;

the precipitation zone comprises: a first settling zone disposed upstream of the flow stabilizing portion, and a second settling zone disposed between the flow stabilizing portion and the separation portion;

the inlet end of the collecting hopper is positioned in the second sedimentation zone, and the collecting hopper penetrates through the flow stabilizing part.

Optionally, the collecting and refluxing device further comprises:

the inlet end of the sludge overflow pipe is positioned in the first sedimentation zone, and the outlet end of the sludge overflow pipe is communicated with the anoxic mixing zone.

Optionally, the method further comprises:

the first separating piece is arranged in the main body and is separated to form the sedimentation area, a water inlet end of the first separating piece is provided with a blocking piece, a water body is formed between the blocking piece and the end part of the first separating piece to enter an inlet of the sedimentation area, the blocking piece forms a backflow space, an outlet end of the sludge balance pipe and/or an outlet end of the sludge overflow pipe are/is communicated with the backflow space, and the backflow space is communicated with the anoxic mixing area.

Optionally, the method further comprises:

the second separating piece is arranged in the main body, one side of the second separating piece, which is far away from the first separating piece, forms a reaction space comprising the anoxic mixing area and the aerobic area, one side of the second separating piece, which is close to the first separating piece, forms a transition area, wherein the reaction space is communicated with the sedimentation area, the second separating piece is provided with a backflow opening, and the sedimentation area and/or the backflow space are communicated with the anoxic mixing area through the backflow opening.

Optionally, the method further comprises:

the first barrel is arranged in the main body, the anoxic mixing zone is formed inside the first barrel, the aerobic zone is formed outside the first barrel, and the backflow opening is positioned at the water inlet end of the anoxic mixing zone.

Optionally, the method further comprises:

the mud distribution piece is arranged in the anoxic mixing area and positioned in the water body flowing direction of the backflow opening.

Optionally, the method further comprises:

the second cylinder is arranged in the main body, is sleeved on the outer side of the first cylinder, forms an aerobic zone with the first cylinder, forms a reflux zone on one side of the second cylinder different from the aerobic zone, and forms a second circulating waterway with the aerobic zone.

Optionally, the second partition is provided with a water flow opening communicating the reaction space and the transition zone, a guide plate is arranged on a path of water in the reaction space flowing towards the water flow opening, and the guide plate extends towards the backflow zone.

Optionally, along the flow direction of water, the rivers passageway of separation portion is towards the center slope setting of separation portion, just the separation portion is equipped with the baffle that shutoff opening is located the rivers passageway in the separation portion, be equipped with in the contained angle space that the baffle formed and extend to the anti-turbulent flow board of collecting bucket entry end, and the contained angle space that the baffle formed is equipped with the blast pipe of intercommunication, and the blast pipe extends to above the liquid level of play water portion.

Optionally, the method further comprises:

the water body accelerating device is arranged in the anoxic mixing zone, is connected with the water inlet part, reduces at least part of the inner diameter of the water body accelerating device along the flowing direction of water body, and the outlet end of the water body accelerating device faces to the reverse arrangement of the outlet end of the collecting and refluxing device.

The technical scheme of the invention has the following advantages:

1. the invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which comprises a main body, wherein a water inlet part and a water outlet part are arranged on the main body; the anoxic mixing zone is arranged in the internal space of the main body and is communicated with the water inlet part; the aerobic zone is arranged in the internal space of the main body and is communicated with the anoxic mixing zone to form a first circulating waterway for water body flow; the sedimentation zone is arranged in the inner space of the main body, is communicated with the first circulating waterway and is positioned at the downstream of the first circulating waterway; and the inlet end of the collecting and refluxing device is positioned in the sedimentation zone, and the outlet end of the collecting and refluxing device is communicated with the anoxic mixing zone.

According to the invention, the anoxic mixing zone and the aerobic zone are arranged on the main body, and the first circulating waterway is formed, so that various microorganisms can alternately enter the growth environment favorable to the main body, and the growth environment unfavorable to the main body can not be inhibited for a long time, so that high biological activity is maintained, the water body can be subjected to efficient and rapid reaction, the water purification treatment effect is enhanced, and the sedimentation zone is arranged to carry out sedimentation type mud-water separation on the water body after the water purification reaction is carried out through the first circulating waterway;

meanwhile, the invention is provided with the collecting and refluxing device, the inlet end of the collecting and refluxing device is positioned in the sedimentation zone, sludge and suspended matters in the sedimentation zone are collected, and the sludge and the suspended matters are refluxed to the anoxic mixing zone through the outlet end, so that the concentration and the content of the sludge and the suspended matters in the sedimentation zone are reduced, the concentration and the content of the sludge and the suspended matters in the effluent of the device are reduced, and the water purifying effect is improved; compared with the prior art that a filtering area is arranged at the downstream of the sedimentation area, suspended matters in the water body can be removed by arranging the collecting and refluxing device which is communicated with the sedimentation area and the anoxic mixing area, the effect of removing suspended matters can not be reduced due to the increase of the service time of the collecting and refluxing device, equipment for backwashing is not required, and the construction difficulty and cost of the equipment are reduced.

2. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device, which comprises a collecting hopper, wherein an inlet end of the collecting hopper is positioned in a sedimentation zone, and the collecting hopper forms a collecting space; and the balance pipe is provided with an inlet end positioned in the collecting space and an outlet end communicated with the anoxic mixing zone.

The invention is provided with the collecting hopper, the inlet end of the collecting hopper is arranged in the sedimentation zone, when the water body enters the sedimentation zone and rises above the inlet end of the collecting hopper, the water flow speed is slowed down due to the suddenly increased water flow area, so that suspended matters and smaller sludge rising along with the water body enter the collecting hopper beyond the inlet end of the collecting hopper, and meanwhile, the water body in the collecting hopper is close to a static state relative to the water body flowing nearby, so that the suspended matters and smaller sludge in the water can move into the collecting hopper, thereby realizing the collection of the sludge and suspended matters.

3. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which also comprises an inclined tube separation device arranged in a sedimentation zone.

According to the invention, the inclined tube separation device is arranged in the sedimentation zone to separate mud from water, when the water passes through the inclined tube separation device, sludge and suspended matters in the water are adsorbed on the inclined tube separation device and further gathered, and then fall back into the sedimentation zone after being separated from the inclined tube separation device under the action of gravity, wherein part of the fallen sludge enters the collecting hopper, so that the content of the sludge and suspended matters in the water discharged by the device is reduced.

4. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device, which comprises a flow stabilizing part and a separating part which are arranged at intervals; the sedimentation zone comprises a first sedimentation zone arranged at the upstream of the steady flow part and a second sedimentation zone arranged between the steady flow part and the separation part; the inlet end of the collecting hopper is positioned in the second sedimentation zone, and the collecting hopper penetrates through the flow stabilizing part.

The inclined tube separation device comprises a steady flow part and a separation part which are arranged at intervals, wherein the steady flow part divides a precipitation area into a first precipitation area and a second precipitation area, water enters the first precipitation area and is subjected to first precipitation to precipitate and separate a part of sludge, then the water passes through the steady flow part and is blocked by the steady flow part to further remove a part of sludge and suspended matters, so that the concentration and the content of the sludge and the suspended matters in the water entering the second precipitation area are reduced, meanwhile, the steady flow part plays a role in stabilizing the current, the flow speed of the water entering the second precipitation area is balanced and gentle, the separation of the sludge and the suspended matters in the water in the second precipitation area is promoted in a precipitation mode, in particular, the precipitation of the suspended matters is facilitated, and then the sludge and the suspended matters in the water are separated again under the blocking effect of the separation part, so that the content of the sludge and the suspended matters in the water discharged by the device is reduced, and the water purifying effect is improved; meanwhile, because the larger sludge is separated under the water purification effect of the first sedimentation zone and the flow stabilizing part, the water body entering the second sedimentation zone contains most of suspended matters, and therefore, the inlet end of the collecting hopper is arranged in the second sedimentation zone, so that suspended matters in the water body can be collected more, and the content of the suspended matters in the water discharged by the equipment is reduced.

5. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device, which further comprises a sludge overflow pipe, wherein the inlet end of the sludge overflow pipe is positioned in a first sedimentation zone, and the outlet end of the sludge overflow pipe is communicated with an anoxic mixing zone.

The collecting and refluxing device also comprises a sludge overflow pipe, wherein the inlet end of the sludge overflow pipe is positioned in the first sedimentation zone, and the concentration of the sludge and suspended matters in the water body in the first sedimentation zone is larger than that in the anoxic mixing zone, so that the sludge and suspended matters can flow back into the anoxic mixing zone through the sludge overflow pipe, the concentration of the sludge and suspended matters in the water body in the first sedimentation zone is reduced, the concentration of the sludge and suspended matters in the water body in the second sedimentation zone is reduced, and meanwhile, the running load of the steady flow part can be reduced, so that the content of the sludge and suspended matters passing through the steady flow part is reduced, and the content of the suspended matters in the effluent of the device is reduced.

6. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device, which is characterized in that a first separating piece is arranged in a main body and is separated to form a sedimentation zone, a water inlet end of the first separating piece is provided with a blocking piece, a water inlet for entering the sedimentation zone is formed between the blocking piece and the end part of the first separating piece, the blocking piece forms a backflow space, an outlet end of a sludge balance pipe and/or an outlet end of a sludge overflow pipe are/is communicated with the backflow space, and the backflow space is communicated with an anoxic mixing zone.

The invention is provided with the baffle piece, an inlet for water to enter the sedimentation zone is formed between the baffle piece and the first partition piece, and the baffle piece forms a backflow space for communicating the sludge balance pipe and/or the sludge overflow pipe with the anoxic mixing zone, so that the water entering the sedimentation zone is separated from the backflow water, the water entering the sedimentation zone is prevented from simultaneously entering the outlet end of the sludge balance pipe and/or the outlet end of the sludge overflow pipe, the backflow of sludge and suspended matters is prevented, and the sludge and suspended matters enter the collection space and the second sedimentation zone to break the sedimentation state of the water, so that the sludge and suspended matters cannot be separated from the water; meanwhile, the baffle member enables water to directly enter the sedimentation zone through the inlet of the sedimentation zone through the blocking effect, so that disturbance to the water in the backflow space is avoided, the water in the backflow space is kept in a stable flowing state, and further sludge and suspended matters which are returned by the collection backflow device can be returned to the anoxic mixing zone; in addition, the baffle also plays a role in blocking the sludge and suspended matters which are returned by the collecting and returning device, so that the sludge and suspended matters are prevented from returning to the collecting space and the sedimentation area, and particularly, the sludge and suspended matters return to the sedimentation area again under the driving of water flow entering the sedimentation area, thereby influencing the sedimentation filtering effect.

7. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device, which further comprises a second partition piece, wherein the second partition piece is arranged in a main body, a reaction space comprising an anoxic mixing area and an aerobic area is formed at one side of the second partition piece, which is far away from the first partition piece, a transition area, which is communicated with a settling area, is formed at one side of the second partition piece, which is close to the first partition piece, and the settling area and/or the backflow space are/is communicated with the anoxic mixing area through the backflow opening.

The invention sets up the second separator, its one side far away from first separator forms the reaction space comprising anoxic mixing zone and aerobic zone, the water body is blocked by the second separator and circulate and flow along the first circulation waterway between anoxic mixing zone and aerobic zone, avoid the effluent of anoxic mixing zone or effluent of aerobic zone from circulate and flow along the first circulation waterway, but enter the settling zone directly, result in the water purifying effect of the apparatus of the invention is reduced; meanwhile, one side of the second separating piece, which is close to the first separating piece, forms a transition area of the reaction space communicated with the sedimentation area, and as the transition area is a non-aeration area, water can be subjected to dynamic static mud-water preliminary separation in the transition area, and mud is settled, compressed and gathered from the water, so that granulation of flocculated mud is promoted, the content of flocculated mud in the water is reduced, the running load of the sedimentation area and a collecting and refluxing device is reduced, and the purification effect of the effluent is enhanced; in addition, the second partition piece is provided with a backflow opening communicated with the backflow space and the anoxic mixing zone, so that sludge and suspended matters in the backflow space can flow back into the anoxic mixing zone conveniently, and sludge separated in the transition zone can flow back into the anoxic mixing zone conveniently.

8. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which further comprises a first cylinder body, wherein the first cylinder body is arranged in the main body, the anoxic mixing zone is formed inside the first cylinder body, the aerobic zone is formed outside the first cylinder body, and the backflow opening is positioned at the water inlet end of the anoxic mixing zone.

The invention sets up the first barrel and forms anoxic mixing zone and good oxygen district, and then form the first circulation water route, make all kinds of microorganisms in the water can get into the growth environment favorable to oneself alternately, in order to carry on the high-efficient quick reaction to the water, strengthen the water purification treatment effect, the return opening is located the water inlet end of anoxic mixing zone, avoid the effluent of anoxic mixing zone to get into the return space through the return opening directly, and then get into and collect reflux unit and sedimentation zone, hinder the backward flow of mud and suspended solids, and disturb the sedimentation environment of the water, make mud and suspended solids unable to break away from the water, meanwhile, the return opening is located the water inlet end of anoxic mixing zone, can also utilize the suction effect that the velocity of water produced in the first circulation water route, drive the water backward flow space, collect space and sedimentation zone, thus make the backward flow of mud and suspended solids in return space, collection space and the sedimentation zone backward flow.

9. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which further comprises a sludge distribution piece, wherein the sludge distribution piece is arranged in the anoxic mixing area and is positioned in the water body flowing direction of the backflow opening.

According to the invention, the mud distribution piece is arranged to block the water body flowing back from the backflow opening, the water body is scattered when being impacted on the mud distribution piece and flows into the anoxic mixing area under the guiding action of the mud distribution piece, so that the sludge and suspended matters in the backflow water body are quickly diffused into the anoxic mixing area and are mixed with the water body in the anoxic mixing area, and impurities in the water body in the anoxic mixing area are quickly adsorbed by the adsorption action of the backflow sludge and suspended matters, so that larger sludge is formed, and the water purification effect is enhanced.

10. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which further comprises a second cylinder body, wherein the second cylinder body is arranged in the main body, the second cylinder body is sleeved outside the first cylinder body, the aerobic area is formed between the second cylinder body and the first cylinder body, a backflow area is formed on one side, different from the aerobic area, of the second cylinder body, and a second circulating waterway is formed between the backflow area and the aerobic area.

The invention is provided with the second cylinder body to form a reflux zone, and the reflux zone and the aerobic zone form a second circulating waterway, namely one-time circulation is added, thereby enhancing the mixing effect and leading the purifying effect of the equipment to be better.

11. According to the inverted multidirectional flow aerobic granular sludge water treatment device provided by the invention, the second partition piece is provided with the water flow opening which is communicated with the reaction space and the transition area, the path of the water body in the reaction space flowing towards the water flow opening is provided with the guide plate, and the guide plate extends towards the backflow area.

The guide plate is arranged at the water flow opening and extends towards the backflow area, the guide plate has the functions of blocking and guiding the water flowing towards the water flow opening in the reaction space, excessive water flowing out of the water flow opening is avoided, the water is guided to enter the backflow area to flow along the second circulating waterway, the water is guaranteed to fully react in the reaction space, meanwhile, the guide plate can also intercept sludge in the water, the content and concentration of activated sludge in the reaction space are guaranteed, and the water treatment effect in the reaction space is improved.

12. According to the inverted multidirectional flow aerobic granular sludge water treatment device provided by the invention, along the flowing direction of a water body, the water flow channel of the separation part is obliquely arranged towards the center of the separation part, the separation part is provided with the baffle plate for blocking the water flow channel with the opening in the separation part, the included angle space formed by the baffle plate is internally provided with the turbulence resisting plate extending to the inlet end of the collecting hopper, the included angle space formed by the baffle plate is provided with the communicated exhaust pipe, and the exhaust pipe extends to above the liquid level of the water outlet part.

The baffle is arranged to seal the water flow channel with the opening positioned at the inner side of the separation part, so that the phenomenon that the water body is directly discharged from an incomplete water flow channel at the space position of the included angle under the action of short flow is avoided, the mud-water separation effect of the separation part cannot be fully utilized, and further, the device water contains more suspended matters, meanwhile, in order to avoid gas accumulation in the included angle space, the exhaust pipe extending to the position above the liquid level of the water outlet part is arranged, the exhaust pipe is ensured to discharge the gas, the water body cannot flow out through the exhaust pipe due to the liquid level, and the turbulence resisting plate extending to the inlet end of the collecting hopper is arranged to guide the water body flowing towards the collecting hopper in the second sedimentation area, so that the water body is smoothly guided to flow into the collecting space, and the impact is not formed at the inlet end of the collecting hopper, and the turbulence is formed, so that the sedimentation state of the water body is disturbed.

13. The invention provides an inverted multidirectional flow aerobic granular sludge water treatment device which also comprises a water body accelerating device, wherein the water body accelerating device is arranged in an anoxic mixing zone and is connected with a water inlet part, at least a part of the inner diameter of the water body accelerating device is reduced along the flowing direction of water body, and the outlet end of the water body accelerating device is reversely arranged towards the outlet end of the collecting and refluxing device.

The water body accelerating device is arranged to lead the water body containing sewage into the equipment, and as at least one part of the inner diameter of the water body accelerating device is reduced, the instantaneous flow velocity of the water body is increased at the position, so that the flow velocity of the water body is improved, the water body can meet the requirements of power and flow velocity flowing in the main body, an additional auxiliary power device is not required, the energy consumption is reduced, and the processing complexity and the occupied area of the device are reduced; meanwhile, as the water body accelerating device is reduced through at least one part of the inner diameter, the water flow rate at the outlet of the water body accelerating device is increased, and the water pressure at the outlet of the water body accelerating device is relatively low according to the Bernoulli principle, the water body in the anoxic mixing area moves towards the water body accelerating device under the pressure action, so that the water body circularly flows along the first circulating waterway, and the reflux space, the collecting space, the sludge and suspended matters in the sedimentation area are refluxed under the pressure action; in addition, the outlet end of the water body accelerating device is reversely arranged towards the outlet end of the collecting and refluxing device, so that the water body is prevented from directly entering the collecting and refluxing device, the refluxing space, the collecting space and the sedimentation area, and sludge and suspended matters cannot flow back.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front sectional view of embodiment 1 of the present invention;

FIG. 2 is a front sectional view of embodiment 2 of the present invention;

FIG. 3 is a top view of embodiment 1 of the present invention;

fig. 4 is a top view of embodiment 2 of the present invention.

Reference numerals illustrate:

1. a water inlet part; 2. a spray pipe; 3. a drainage mixing tube; 4. a water distribution cone; 5. an anoxic mixing zone; 6. an aerobic zone; 7. a reflow zone; 8. a turbulence assembly; 9. a guide plate; 10. a reflection plate; 11. an aeration rising channel; 12. a transition zone; 13. a first partition; 14. a first precipitation zone; 15. a steady flow part; 16. a separation section; 17. a water outlet weir; 18. a baffle; 19. an anti-turbulence plate; 20. an exhaust pipe; 21. a water outlet part; 22. a collection bucket; 23. a balance tube; 24. a mud collecting pipe; 25. a mud distribution piece; 26. a sludge return pipe; 27. a sludge discharge pipe; 28. an aerator; 29. a sludge overflow pipe; 30. a blocking member; 31. a second precipitation zone; 32. a second separator; 33. a first cylinder; 34. a second cylinder; 35. a main body.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the terms "first," "second," and "third" are used merely for distinguishing, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

The embodiment provides an inverted multi-directional flow aerobic granular sludge water treatment device, as shown in fig. 1 and 3, comprising:

a main body 35 provided with a water inlet part 1 and a water outlet part 21, wherein the water inlet part 1 is used for introducing a water body containing sewage into the main body 35, and the water outlet part 21 is used for leading out the water body treated by the equipment; the structure of the main body 35 is not particularly limited in this embodiment, and in order to increase the capacity of the main body 35, it is preferable that the main body 35 in this embodiment has a rectangular structure, and of course, in other embodiments, the main body 35 may be provided in a cylindrical shape, a spherical shape, or the like; in this embodiment, the material of the main body 35 is not limited, and steel structure, concrete structure, polymer material, etc. may be used.

The anoxic mixing zone 5 is arranged in the inner space of the main body 35 and communicated with the water inlet part 1, and the anoxic mixing zone 5 is used for carrying out denitrification reaction on water bodies and mixing the original water bodies in the main body 35 with the water bodies introduced by the water inlet part 1; in this embodiment, the structure of the anoxic mixing area 5 is not specifically limited, and preferably, as shown in fig. 1, a first cylinder 33 is disposed in a main body 35, the anoxic mixing area 5 is formed in the first cylinder 33, and in this embodiment, the shape of the first cylinder 33 is preferably a rectangular structure adapted to the main body 35; of course, in other embodiments, a partition may be provided in the main body 35 to partition the inner space of the main body 35 to form the anoxic mixing zone 5.

The aerobic zone 6 is arranged in the internal space of the main body 35 and is used for performing nitration reaction on water, the aerobic zone 6 is communicated with the anoxic mixing zone 5 to form a first circulating waterway for water flow, the structure of the aerobic zone 6 is not particularly limited, preferably, as shown in fig. 1, a second cylinder 34 is arranged in the main body 35, the second cylinder 34 is sleeved outside the first cylinder 33, and can be coaxially sleeved or slightly inclined or parallel, the shape of the second cylinder 34 is preferably rectangular structure matched with the main body 35 and forms the aerobic zone 6 with the first cylinder 33, and as both ends of the first cylinder 33 are open, the aerobic zone 6 is communicated with the anoxic mixing zone 5 to form a first circulating waterway for water flow, and the water circularly flows along the first circulating waterway so that various microorganisms can alternately enter the growth environment beneficial to the self, the microorganisms can not be inhibited due to long-term growth environment unfavorable to the self, the high biological activity is kept, and the high-speed water treatment effect is fast performed; meanwhile, an aerator 28 is arranged at the water inlet end of the aerobic zone 6, the water body in the aerobic zone 6 is driven to flow through the air stripping action, the water inlet of the aerobic zone 6 is enabled to be in contact with gas at the first time, the water body can be conveniently and efficiently reacted, and meanwhile, the water body in the anoxic mixing zone 5 is driven to flow into the aerobic zone 6 through the low pressure formed through the air stripping action; in order to further improve the water purification reaction effect of the water body, a reflux zone 7 is formed on one side of the second cylinder 34, which is different from the aerobic zone 6, and a second circulating waterway is formed by the reflux zone 7 and the aerobic zone 6; of course, in other embodiments, a partition may be provided in the main body 35 to partition the inner space of the main body 35 to form the aerobic zone 6; of course, in other embodiments, when only the first circulation water path is provided to satisfy the requirement of the water purification reaction of the water body, the second cylinder 34 and the recirculation zone 7 may not be provided, and at this time, the aerobic zone 6 is formed between the outside of the first cylinder 33, that is, the main body 35.

For promoting the mixing and reaction effect of the water body in the anoxic mixing zone 5 and the aerobic zone 6, the embodiment further provides a turbulence assembly 8, which comprises a first turbulence plate obliquely arranged on the cavity wall and a second turbulence plate obliquely arranged in an obtuse angle space formed by the first turbulence plate and the cavity wall, wherein a backflow gap is formed between the second turbulence plate and the cavity wall, the water body can form turbulence surrounding the second turbulence plate in the flowing process and turbulence in an acute angle space formed by the first turbulence plate and the cavity wall, so that the mixing effect of the water body is promoted, and the water purification reaction effect is promoted.

The sedimentation zone is disposed in the internal space of the main body 35, is communicated with the first circulation waterway and is located at the downstream of the first circulation waterway, and the structure of the sedimentation zone is not particularly limited in this embodiment, preferably, as shown in fig. 1, a first partition member 13 is disposed in the main body 35 and separates to form the sedimentation zone, the first partition member 13 in this embodiment adopts a cylindrical structure, and an inlet of the sedimentation zone is formed at the lower end portion; of course, in other embodiments, the first partition 13 may be a plate member disposed horizontally or obliquely, which is connected to the main body 35 and forms a settling zone above the main body, and the plate member needs to be provided with an inlet of the settling zone.

The inlet end of the collecting and refluxing device is positioned in the sedimentation zone, and the outlet end of the collecting and refluxing device is communicated with the anoxic mixing zone 5; in this embodiment, the structure of the collecting and refluxing device is not particularly limited, preferably, as shown in fig. 1, the collecting and refluxing device includes a collecting hopper 22, an inlet end is located in the settling zone, the collecting hopper 22 forms a collecting space, a balance pipe 23, an inlet end is located in the collecting space, an outlet end is communicated with the anoxic mixing zone 5, when a water body enters the settling zone and rises above the inlet end of the collecting hopper 22, the flow speed of the water body is slowed down due to the suddenly increased water flow area, so that suspended matters and smaller sludge rising to the water body pass through the inlet end of the collecting hopper 22 to enter the collecting hopper 22, and meanwhile, the water body in the collecting hopper 22 is close to a static state relative to the nearby water body, so that suspended matters and smaller sludge in the water can also move into the collecting hopper 22, thereby realizing the collection of sludge and suspended matters, and the suspended matters are collected in the collecting space, the concentration of the sludge and the suspended matters in the water body is greater than that in the space outside the collecting space, and the suspended matters can be discharged out of the anoxic mixing zone 5 through the balance pipe 23.

Because the collecting hopper 22 also can collect a part of sludge, in order to timely discharge the sludge, the influence of the sludge accumulation in the collecting space is avoided, the collecting hopper 22 is further collected for suspended matters and sludge, the collecting hopper 24 is arranged in the embodiment, the collecting hopper 24 can be directly communicated with the external space of the main body 35, the sludge discharge pipe 27 can be connected to discharge the sludge into storage equipment, the sludge discharge pipe 27 can be further provided with a sludge return pipe 26 communicated with the anoxic mixing zone 5, the sludge is returned to the anoxic mixing zone 5 through valve control, so that the anoxic mixing zone 5 is supplemented, the active sludge in the aerobic zone 6 and the return zone 7 is simultaneously mixed with the discharged water of the water inlet part 1 by utilizing the adsorption effect of the part of sludge, and impurities in the water body are adsorbed to form the sludge rapidly.

In this embodiment, in order to reduce the sludge content in the effluent of the apparatus, and at the same time, make the collection and backflow device mainly collect suspended matters in the water, so as to avoid the influence of the collection of the suspended matters caused by the collection of the sludge, a pipe chute separation device is further provided in the main body 35, and is provided in the sedimentation zone.

In this embodiment, the structure of the inclined tube separation device is not particularly limited, preferably, as shown in fig. 1, the inclined tube separation device includes a steady flow portion 15 and a separation portion 16 that are disposed at intervals, and the water flow channels of the steady flow portion 15 and the separation portion 16 are not parallel, where the sedimentation region includes a first sedimentation region 14 disposed upstream of the steady flow portion 15, and a second sedimentation region 31 disposed between the steady flow portion 15 and the separation portion 16, and an inlet end of a collecting bucket 22 is located in the second sedimentation region 31, and the collecting bucket 22 penetrates the steady flow portion 15, and fixes the collecting bucket 22 by the steady flow portion 15, an outlet end of a balance tube 23 is located in the first sedimentation region 14, after a water body enters the first sedimentation region 14, a first sedimentation is performed to sediment and separate a portion of larger sludge, and after the water body passes through the steady flow portion 15, the blocking effect of the steady flow part 15 further removes a part of sludge and suspended matters, so that the concentration and the content of the sludge and the suspended matters in the water body entering the second precipitation area 31 are reduced, and at the moment, the content of the sludge in the water body in the second precipitation area 31 is extremely low, and the sludge mainly contains the suspended matters, meanwhile, the steady flow part 15 plays a role in stabilizing the flow rate of the water body entering the second precipitation area 31, so that the flow rate of the water body entering the second precipitation area 31 is balanced and gentle, the sludge and the suspended matters in the water body in the second precipitation area 31 are further promoted to be separated in a precipitation way, in particular, the precipitation of the suspended matters is facilitated, then the sludge and the suspended matters in the water body are separated again under the blocking effect of the separation part 16, and then enter the water outlet weir 17 and are discharged by the water outlet part 21, so that the content of the sludge and the suspended matters in the water outlet of the equipment of the embodiment is reduced, the water purifying effect is improved, and the water outlet weir 17 is arranged at the inlet end of the water outlet part 21; at the same time, the method comprises the steps of, because the water purifying effect of the first sedimentation zone 14 and the steady flow part 15 has separated larger sludge, the water body entering the second sedimentation zone 31 contains most of suspended matters, and therefore, the inlet end of the collecting hopper 22 is arranged in the second sedimentation zone 31, so that suspended matters in the water body can be collected more, and the content of the suspended matters in the effluent of the embodiment is reduced; in this embodiment, the position of the outlet end of the balance pipe 23 is not specifically limited, preferably, as shown in fig. 1, the outlet end of the balance pipe 23 is located in the first sedimentation zone 14, and the returned suspended matter and sludge pass through the first sedimentation zone 14 to be sedimentated and are collected again in the steady flow portion 15 to form larger sludge so as to separate from the water body, however, in other embodiments, the outlet end of the balance pipe 23 may also extend to outside the sedimentation zone; of course, in other embodiments, the chute separating device may be provided with only the separating portion 16, where the settling zone is an integral space, and the collecting hopper 22 is located in the settling zone and may be fixedly connected to the first partition 13 by a bracket, or may be fixedly connected to the main body 35 by a bracket, and the outlet end of the balance tube 23 needs to extend out of the settling zone.

In this embodiment, the structure of the separation portion 16 is not specifically limited, preferably, as shown in fig. 1, along the flow direction of the water body, the water flow channel of the separation portion 16 is inclined toward the center of the separation portion 16, so as to facilitate the installation of the separation portion 16, and the separation portion 16 is provided with a baffle 18 for blocking the water flow channel with an opening at the inner side of the separation portion 16, so that the water body is prevented from being directly discharged from the incomplete water flow channel at the position of the included angle space under the action of short flow, the mud-water separation effect of the separation portion 16 is not fully utilized, and further, the device effluent contains more suspended matters, and the included angle space formed by the baffle 18 is provided with an anti-turbulence plate 19 extending to the inlet end of the collection hopper 22, which has a guiding effect on the water body flowing into the collection hopper 22 in the second settling zone 31, so that the water body is smoothly guided and does not form an impact at the inlet end of the collection hopper 22, and thus forms a turbulence to disturb the sediment state of the water body, and the included angle space formed by the baffle 18 is provided with a communicated exhaust pipe 20, and the exhaust pipe 20 extends to above the liquid level of the effluent portion 21.

A second partition 32 provided in the main body 35, a side thereof remote from the first partition 13 forming a reaction space including the anoxic mixing zone 5 and the aerobic zone 6, a side thereof close to the first partition 13 forming a transition zone 12 in which the reaction space communicates with the settling zone, and the second partition 32 being provided with a return opening communicating with the settling zone and the anoxic mixing zone 5; in this embodiment, the structure of the second partition 32 is not specifically limited, preferably, as shown in fig. 1, the second partition 32 in this embodiment adopts a cylindrical structure and is sleeved outside the first partition 13, the upper end portion of the second partition 32 in this embodiment is a vertical end, the lower end portion is bent and set to be a bent end, a backflow opening is formed between the bent ends, the anoxic mixing zone 5, the aerobic zone 6 and the backflow zone 7 are all set in a space below the bent end, so that the first cylindrical body 33 and the second cylindrical body 34 are sleeved, the water body is convenient to circulate, an aeration rising channel 11 is formed between the vertical end and the main body 35, the water body after passing through the first circulating waterway and the second circulating waterway enters the aeration rising channel 11 under the air stripping action, and the nitrification reaction is still performed in the aeration rising channel 11 to purify the water body, and meanwhile, the larger sludge in the water body cannot continuously rise under the action of gravity, the water body can be separated from the aeration rising channel 11 and then fall back into the reflux zone 7, the concentration of the activated sludge in the anoxic mixing zone 5, the aerobic zone 6 and the reflux zone 7 is improved, the effect of the water purification reaction is improved, meanwhile, the sludge content in the effluent of the equipment can be reduced because part of sludge can be separated from the aeration rising channel 11, the operation loads of the sedimentation zone, the inclined tube separation device and the reflux collecting device are reduced, a transition zone 12 is formed between the first partition member 13 and the second partition member 32, the water body in the aeration rising channel 11 overflows the upper end part of the second partition member 32 and enters the transition zone 12, the transition zone 12 is a non-aeration zone, the water body can be subjected to dynamic static mud-water preliminary separation in the transition zone 12, the sludge is settled, compressed and gathered from the water body, the granulation of the flocculated sludge is promoted, the sludge content in the effluent of the embodiment is reduced, the water purifying effect is improved, the operation loads of the sedimentation area, the inclined tube separation device and the collecting reflux device are reduced, the sludge separated in the transition area 12 can flow back to the anoxic mixing area 5 through the reflux opening under the guiding action of gravity and the bending end, meanwhile, the sludge and suspended matters separated and flowing back by the sedimentation area and the collecting reflux device also flow back to the anoxic mixing area 5 through the reflux opening, in order to communicate the reflux opening with the anoxic mixing area 5, the reflux opening is preferably arranged at the water inlet end of the anoxic mixing area 5, namely, the end part of the bending end extends to the water inlet end of the anoxic mixing area 5, so that the sludge and suspended matters can enter the anoxic mixing area 5, the impurities of the water body in the anoxic mixing area 5 are adsorbed by utilizing the adsorption action of the sludge and the suspended matters, particularly the impurities in the water body entering the anoxic mixing area 5 through the water inlet part 1, so that larger sludge is formed quickly, and the water purifying effect and efficiency are improved; of course, in other embodiments, the second partition 32 may be a plate member disposed horizontally or obliquely, which is connected to the main body 35 and forms the transition zone 12 above it, in which case there is no aeration rising channel 11, the water in the reaction space directly passes through the second partition 32 and enters the transition zone 12, the sludge formed in the transition zone 12 moves toward the backflow opening under the driving of the water flow or the guiding action of the oblique angle, and a certain distance is required between the water flow opening of the water entering the transition zone 12 and the inlet of the sedimentation zone.

The second partition 32 is provided with a water flow opening communicating the reaction space and the transition zone 12, and the structure of the water flow opening is not particularly limited in this embodiment, preferably, as shown in fig. 1, the water flow opening in this embodiment is an opening formed at the upper end of the second partition 32, through which water body passes through the second partition 32 so as to enter the transition zone 12, and of course, in other embodiments, the water flow opening may be a through hole formed in the second partition 32; the water body in the reaction space is provided with a guide plate 9 on a path of the water flow opening, the guide plate 9 extends towards the backflow area 7, and preferably, in the embodiment, the guide plate 9 is connected with the second partition piece 32 and is arranged between the inlet end of the aeration rising channel 11 and the aerobic area 6, so that the water body flowing out of the aerobic area 6 is prevented from directly entering the aeration rising channel 11 under the air stripping action, and then directly entering the sedimentation area, a first circulating waterway and a second circulating waterway cannot be formed, the water body enters the backflow area 7 under the guiding action of the guide plate 9, so that a second circulating waterway is formed, meanwhile, the water body impacts the guide plate 9 to separate part of sludge, and the separated sludge also flows back into the backflow area 7 under the guiding action, so that the water body is prevented from entering the sedimentation area.

In order to further avoid that the water flowing out of the aerobic zone 6 directly enters the aeration rising channel 11 and control the water quantity entering the aeration rising channel 11, the inlet end of the aeration rising channel 11 is provided with the reflecting plates 10, and the reflecting plates 10 are arranged in the water flowing direction bypassing the guide plate 9, preferably, as shown in fig. 1, the reflecting plates 10 in the embodiment are alternately arranged, wherein the first one is positioned in the water flowing direction bypassing the guide plate 9, and the second one is positioned in the water flowing direction bypassing the first reflecting plate 10 so as to intercept the water.

The mud distributing piece 25 is arranged in the anoxic mixing zone 5 and positioned in the water body flowing direction of the backflow opening, the mud distributing piece 25 blocks the water body flowing back from the backflow opening, the water body is scattered when impacted on the mud distributing piece 25 and flows into the anoxic mixing zone 5 under the guiding action of the mud distributing piece 25, so that the sludge and suspended matters in the backflow water body are quickly diffused into the anoxic mixing zone 5 and are mixed with the water body in the anoxic mixing zone 5, and impurities in the water body in the anoxic mixing zone 5 are quickly adsorbed by the adsorption action of the backflow sludge and suspended matters so as to form larger sludge and enhance the water purifying effect; the structure of the mud distributing member 25 is not particularly limited in this embodiment, and preferably, the mud distributing member 25 is provided in a tapered structure with its tip end disposed toward the return opening; of course, in other embodiments, the mud distributing member 25 may be a plate disposed obliquely to the water flow direction of the return opening or a plate disposed perpendicularly to the water flow direction of the return opening.

The water body accelerating device is arranged in the anoxic mixing zone 5 and is connected with the water inlet part 1, at least one part of the inner diameter of the water body accelerating device is reduced along the flowing direction of water body, and the outlet end of the water body accelerating device is reversely arranged towards the outlet end of the collecting and refluxing device, as at least one part of the inner diameter of the water body accelerating device is reduced, the water body can generate instant flow velocity increase at the position so as to increase the flow velocity of the water body and further provide the flowing force of the water body, the water body accelerating device is arranged in the anoxic mixing zone 5, the water body entering the equipment is firstly mixed with the water body in the anoxic mixing zone 5 and subjected to denitrification reaction, namely, compared with the scheme of the prior art that the anoxic mixing zone 5 is arranged behind the aerobic zone 6, the embodiment adopts the scheme of front denitrification, because the nitrification reaction of the aerobic zone 6 consumes carbon sources in the water body, the denitrification reaction effect in the anoxic mixing zone 5 is poor in the scheme in the prior art, the anoxic mixing zone 5 is arranged in front, so that the water body is firstly subjected to the denitrification reaction, and the denitrification effect of the anoxic mixing zone 5 is better because the carbon sources in the water inflow of the device are not consumed, so that the water purifying effect of the device is better, meanwhile, because the water body of the embodiment directly enters the aerobic zone 6 after flowing out of the anoxic mixing zone 5, and directly flows back to the anoxic mixing zone 5 from the aerobic zone 6, the water bodies of the aerobic zone 6 and the anoxic mixing zone 5 have rapid alternation of the water body in the circulating flow, compared with the scheme that the aerobic zone 6 has a certain distance when flowing to the anoxic mixing zone 5 in the prior art, in this embodiment, because the water body is alternated, in the single first circulation waterway flowing process, compared with the effluent of the aerobic zone 6 in the prior art, the water body flowing back in the aerobic zone 6 has more carbon sources, the denitrification reaction after the water body flowing back in the aerobic zone 6 enters the anoxic mixing zone 5 is enhanced, and the water body accelerating device is matched with the air stripping action in the aerobic zone 6, so that the water body alternation efficiency is improved, meanwhile, the phenomenon that the carbon source consumption is high due to long retention time in the aerobic zone 6 in the single first circulation waterway flowing process, and the denitrification reaction in the subsequent anoxic mixing zone 5 is affected is avoided, and therefore, the denitrification reaction effect of the device in this embodiment is better due to the higher water body alternation efficiency, and the integral water purifying effect of the device is improved.

The water body accelerating device of the embodiment comprises a spray pipe 2, at least one part of the inner diameter of the spray pipe 2 is reduced along the flowing direction of water body so as to accelerate the water inflow of equipment, so that an additional auxiliary power device is not required to be arranged in the embodiment, the smaller inner diameter part of the auxiliary power device can be positioned in the middle part or the water outlet end of the spray pipe 2, the water body accelerating device is arranged at the water outlet end, the transition part of which the inner diameter is changed is in a conical shape for reducing the flowing resistance of the water body, the cross section of the spray pipe 2 can be in a shape of rectangle, polygon, circle and the like, and the cross section of the spray pipe 2 is round for avoiding dead angles of the pipe wall of the spray pipe 2.

In order to further drive the water body to flow along the first circulating waterway, the water body accelerating device of the embodiment further comprises a drainage mixing pipe 3, the drainage mixing pipe 3 is covered at the water outlet end of the spray pipe 2, a drainage waterway is formed between the spray pipe 2 and the drainage mixing pipe 3, the drainage waterway is communicated with the anoxic mixing zone 5, as the water flow speed at the outlet of the spray pipe 2 is higher, the water pressure at the outlet of the spray pipe 2 is relatively lower according to the Bernoulli principle, the drainage mixing pipe 3 can facilitate the water body in the anoxic mixing zone 5 to enter the drainage waterway under the action of pressure, so that the water body is carried by the water outlet of the spray pipe 2 to flow to the aerobic zone 6, meanwhile, the drainage mixing pipe 3 can also enable the water inlet of the equipment to fully mix with the water body in the drainage waterway and then enter the aerobic zone 6, bacteria and nutrient substances in the original water body of the equipment are diffused into the water inlet of the equipment at the first time through mixing, so that the subsequent reaction is facilitated, and the reaction efficiency is enhanced; of course, in other embodiments, the diversion mixing pipe 3 may not be provided when the nozzle 2 is sufficiently moved along the first circulation waterway by its own acceleration and low pressure.

Further, at least a portion of the inner diameter of the drainage mixing tube 3 is reduced so as to accelerate the mixed water body, in this embodiment, the portion of the smaller inner diameter of the drainage mixing tube 3 may be located in the middle or at the water outlet end, the embodiment is preferably located at the water outlet end, and the transition portion of the inner diameter change is tapered so as to reduce the resistance of the flowing water body, and the cross section of the drainage mixing tube 3 may be rectangular, polygonal, circular or other shapes, so that the wall of the drainage mixing tube 3 is prevented from generating dead angles.

In order to facilitate the effluent of the anoxic mixing zone 5 to enter the aerobic zone 6 and enable the water to flow uniformly, a water distribution cone 4 is further arranged at the water outlet end of the anoxic mixing zone 5, the water distribution cone 4 can be welded with the bottom of the main body 35 or detachably connected through bolts, the width of the water distribution cone 4 is gradually increased along the flowing direction of the water body, the water body accelerating device is arranged towards the water distribution cone 4, the water outlet of the water body accelerating device is impacted after the water distribution cone 4 and guided by the cone with gradually increased width, flows around and enters the aerobic zone 6, in the embodiment, the water body accelerating device is arranged towards the water distribution cone 4, namely along the gravity direction, the outlet end of the water body accelerating device is downwards, namely the water body accelerating device is inversely arranged, namely inversely arranged.

Example 2

The present embodiment provides an inverted multi-directional flow aerobic granular sludge water treatment device, as shown in fig. 2 and 4, and compared with embodiment 1, the present embodiment is characterized in that:

in order to avoid dead angles formed in the inner space of the main body 35, it is preferable that the main body 35 of the present embodiment is cylindrical, and the first cylinder 33, the second cylinder 34, the first separator 13 and the second separator 32 are all cylindrical and adapted to the main body 35, however, in other embodiments, the first separator 13 and the second separator 32 may be plate members.

As shown in fig. 2, the water inlet end of the first partition 13 is further provided with a baffle 30, an inlet for water to enter the sedimentation area is formed between the baffle 30 and the end of the first partition 13, the baffle 30 forms a backflow space, the outlet end of the sludge balance pipe 23 is communicated with the backflow space, the backflow space is communicated with the anoxic mixing area 5, i.e. the second partition 32 is provided with a backflow opening for communicating the backflow space with the anoxic mixing area 5.

In this embodiment, the structure of the baffle 30 is not particularly limited, and preferably, as shown in fig. 2, the baffle 30 of this embodiment has a frustum structure, in which an end with a smaller radial cross section is disposed toward the sedimentation area, and the end is fixedly connected to the collecting bucket 22 by welding or bolts, and in which an end with a larger radial cross section extends toward the second partition 32; of course, in other embodiments, the baffle 30 may also be a cone structure, which is disposed between the collecting hopper 22 and the return opening, and is connected to the first cylinder 33 or the second cylinder 34 through a bracket to fix the position thereof, and the outlet end of the sludge balance pipe 23 may extend into the return space, or may be opened on the baffle 30.

The collecting and refluxing device of this embodiment further includes a sludge overflow pipe 29, the inlet end is located in the first precipitation zone 14, the outlet end is communicated with the refluxing space, and then is communicated with the anoxic mixing zone 5, preferably, as shown in fig. 2, in order to facilitate collection, the inlet end of the sludge overflow pipe 29 is in a diffusion shape, and the outlet end of the sludge overflow pipe 29 may extend into the refluxing space, or may be provided on a blocking member 30.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. Inversion type multidirectional flow aerobic granular sludge water treatment device is characterized by comprising:

a main body (35) provided with a water inlet (1) and a water outlet (21);

an anoxic mixing zone (5) which is arranged in the internal space of the main body (35) and is communicated with the water inlet part (1);

The aerobic zone (6) is arranged in the internal space of the main body (35), and the aerobic zone (6) is communicated with the anoxic mixing zone (5) to form a first circulating waterway for water body flow;

the sedimentation zone is arranged in the inner space of the main body (35), communicated with the first circulating waterway and positioned at the downstream of the first circulating waterway;

the inlet end of the collecting and refluxing device is positioned in the sedimentation zone, and the outlet end of the collecting and refluxing device is communicated with the anoxic mixing zone (5);

the collecting and refluxing device comprises:

a collection hopper (22), an inlet end of which is positioned in the sedimentation zone, and the collection hopper (22) forms a collection space;

a balance pipe (23), the inlet end of which is positioned in the collecting space, and the outlet end of which is communicated with the anoxic mixing zone (5);

further comprises: the inclined tube separation device is arranged in the sedimentation zone;

the inclined tube separation device includes: a steady flow part (15) and a separation part (16) which are arranged at intervals;

the precipitation zone comprises: a first settling zone (14) disposed upstream of the steady flow portion (15), and a second settling zone (31) disposed between the steady flow portion (15) and the separation portion (16);

The inlet end of the collecting hopper (22) is positioned in the second sedimentation zone (31), and the collecting hopper (22) penetrates through the steady flow part (15);

the first separation piece (13) is arranged in the main body (35) and is separated to form the sedimentation area, a baffle piece (30) is arranged at the water inlet end of the first separation piece (13), a water body inlet into the sedimentation area is formed between the baffle piece (30) and the end part of the first separation piece (13), the baffle piece (30) forms a backflow space, the outlet end of the sludge balance pipe (23) is communicated with the backflow space, and the backflow space is communicated with the anoxic mixing area (5);

the second separating piece (32) is arranged in the main body (35), one side of the second separating piece, which is far away from the first separating piece (13), forms a reaction space comprising the anoxic mixing zone (5) and the aerobic zone (6), one side of the second separating piece, which is close to the first separating piece (13), forms a transition zone (12) of the reaction space communicated with the sedimentation zone, and the second separating piece (32) is provided with a backflow opening, and the sedimentation zone and/or the backflow space are communicated with the anoxic mixing zone (5) through the backflow opening.

2. The inverted multi-directional flow aerobic granular sludge water treatment device of claim 1, wherein said collection recirculation device further comprises:

and the inlet end of the sludge overflow pipe (29) is positioned in the first sedimentation zone (14), and the outlet end of the sludge overflow pipe is communicated with the backflow space.

3. The inverted multi-directional flow aerobic granular sludge water treatment device of claim 1, further comprising:

the first barrel (33) is arranged in the main body (35), the anoxic mixing zone (5) is formed inside the first barrel (33), the aerobic zone (6) is formed outside the first barrel (33), and the backflow opening is positioned at the water inlet end of the anoxic mixing zone (5).

4. An inverted multi-directional flow aerobic granular sludge water treatment device as claimed in claim 3 further comprising:

the mud distribution piece (25) is arranged in the anoxic mixing zone (5) and positioned in the water body flowing direction of the backflow opening.

5. An inverted multi-directional flow aerobic granular sludge water treatment device as claimed in claim 3 further comprising:

the second barrel (34) is arranged in the main body (35), the second barrel (34) is sleeved outside the first barrel (33), the second barrel and the first barrel (33) form an aerobic zone (6), one side, different from the aerobic zone (6), of the second barrel (34) forms a backflow zone (7), and the backflow zone (7) and the aerobic zone (6) form a second circulating waterway.

6. The inverted multidirectional flow aerobic granular sludge water treatment device according to claim 5, wherein the second partition (32) is provided with a water flow opening communicating the reaction space and the transition zone (12), a guide plate (9) is provided on a path along which a water body in the reaction space flows toward the water flow opening, and the guide plate (9) extends toward the return zone (7).

7. The inverted multi-directional flow aerobic granular sludge water treatment device according to any one of claims 1 to 6, wherein the water flow channel of the separation part (16) is inclined towards the center of the separation part (16) along the flow direction of the water body, the separation part (16) is provided with a baffle (18) for blocking the water flow channel with an opening in the separation part (16), an included angle space formed by the baffle (18) is provided with an turbulence resistant plate (19) extending to the inlet end of the collecting hopper (22), and the included angle space formed by the baffle (18) is provided with a communicated exhaust pipe (20), and the exhaust pipe (20) extends above the liquid level of the water outlet part (21).

8. The inverted multi-directional flow aerobic granular sludge water treatment device as claimed in any one of claims 1 to 6, further comprising:

The water body accelerating device is arranged in the anoxic mixing zone (5) and is connected with the water inlet part (1), at least one part of the inner diameter of the water body accelerating device is reduced along the flowing direction of water body, and the outlet end of the water body accelerating device faces to the reverse arrangement of the outlet end of the collecting reflux device.