CN113968622B - Inversion type multi-ring flow micro-power aerobic granular sludge water treatment device - Google Patents
Inversion type multi-ring flow micro-power aerobic granular sludge water treatment device Download PDFInfo
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- CN113968622B CN113968622B CN202110713331.XA CN202110713331A CN113968622B CN 113968622 B CN113968622 B CN 113968622B CN 202110713331 A CN202110713331 A CN 202110713331A CN 113968622 B CN113968622 B CN 113968622B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
An inversion type multi-ring flow micro-power aerobic granular sludge water treatment device belongs to the technical field of water treatment equipment. Comprises a main body provided with a water inlet part; a first cylinder body, wherein a first anoxic zone communicated with the water inlet part is formed inside the first cylinder body; the second cylinder is sleeved outside the first cylinder, an aerobic zone is formed between the second cylinder and the first cylinder, and the aerobic zone and the first anoxic zone form a first circulating waterway for water flow; the third cylinder is sleeved outside the second cylinder, a second anoxic zone is formed between the third cylinder and the second cylinder, and the second anoxic zone and the aerobic zone form a second circulating waterway for water body flow. According to the invention, the first circulating waterway and the second circulating waterway are arranged, and the first circulating waterway and the second circulating waterway are overlapped in the aerobic zone, so that the richness and the complexity of the water flow path are increased, and the water and various microorganisms can be more fully mixed and reacted, therefore, the invention has a better water purifying effect compared with the prior art.
Description
Technical Field
The invention relates to the technical field of water treatment equipment, in particular to an inverted multi-ring flow micro-power aerobic granular sludge water treatment device.
Background
The existing biochemical sewage treatment equipment is provided with an anoxic zone and an aerobic zone, sewage respectively reacts with nitrifying bacteria in the aerobic zone to perform nitrification reaction, and reacts with denitrifying bacteria in the anoxic zone to perform denitrification reaction so as to remove pollutants such as organic matters, nitrogen, phosphorus and the like in the sewage.
In order to enable various microorganisms to alternately enter a growth environment favorable to the microorganisms, the microorganisms are not inhibited due to the fact that the microorganisms are in the growth environment unfavorable to the microorganisms for a long time, high biological activity is kept, efficient and rapid reaction is carried out on sewage, sewage treatment effect is enhanced, an anoxic zone and an aerobic zone are communicated by the existing biochemical sewage treatment equipment to form circulation, sewage circularly flows in the anoxic zone and the aerobic zone to carry out water purification reaction, the equipment in the prior art only has one circulation path, namely, water body circularly flows between the anoxic zone and the aerobic zone of the equipment, and the circulation path is single, and the water body path with a circulation center is shorter than the water body path at the periphery of the circulation, so that the circulation flow of the water body is unbalanced, and the full circulation and reaction of the water body are influenced.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that the biochemical sewage treatment equipment in the prior art has poor water purification effect due to single circulation path and insufficient water circulation flow, thereby providing an inverted multi-ring flow micro-power aerobic granular sludge water treatment device.
The invention provides the following technical scheme:
an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, comprising:
a main body provided with a water inlet part;
the first cylinder is arranged in the main body, a first anoxic zone is formed in the first cylinder, and the first anoxic zone is communicated with the water inlet part;
the second cylinder is arranged in the main body, sleeved outside the first cylinder and forms an aerobic zone with the first cylinder, an aerator is arranged in the aerobic zone, and the aerobic zone and the first anoxic zone form a first circulating waterway for water flow;
the third cylinder is arranged in the main body, is sleeved outside the second cylinder, forms a second anoxic zone with the second cylinder, and forms a second circulating waterway for water body flow with the aerobic zone.
Optionally, a sludge reflux area is formed between the third cylinder and the main body, and the sludge reflux area and the aerobic area form a third circulating waterway for water body flow.
Optionally, the method further comprises:
the water distribution cone is arranged in the main body, the water outlet of the first cylinder body faces the water distribution cone, and the width of the water distribution cone is gradually increased along the flowing direction of the water body.
Optionally, the third cylinder includes:
the inverted cone part is covered at the water outlet end of the second cylinder body and is provided with a water outlet;
and a backflow guide plate is arranged in a space formed by the inverted cone part, and the backflow guide plate is positioned in the direction that the water body flows from the water outlet end of the second cylinder body to the water outlet.
Optionally, the reflux guide plate is obliquely arranged, one side, close to the water outlet end of the second cylinder, of the reflux guide plate is arranged towards the water inlet end of the first cylinder, and one side, far away from the water outlet end of the second cylinder, of the reflux guide plate is arranged towards the inverted cone portion.
Optionally, the method further comprises:
the aeration center cylinder is arranged at the water outlet end of the inverted cone part, and a turbulence assembly is arranged in the aeration center cylinder.
Optionally, the turbulence assembly comprises:
The third guide plate is arranged on the aeration center cylinder and is obliquely arranged towards the water inlet end of the aeration center cylinder;
the turbulent flow plate is arranged in an obtuse angle space formed by the third guide plate and the aeration central cylinder, and is obliquely arranged towards the water outlet end of the aeration central cylinder along the flow direction of the water body, and a backflow gap is formed between the turbulent flow plate and the aeration central cylinder.
Optionally, the method further comprises:
the first guide plate is arranged in the aerobic zone and is obliquely arranged towards the cavity wall of the aerobic zone along the flowing direction of the water body.
Optionally, the method further comprises:
the second guide plate is arranged in the second anoxic zone, and is obliquely arranged towards the water outlet end of the second anoxic zone along the flow direction of the water body.
Optionally, the method further comprises:
and a fourth cylinder body, which forms a transition zone with the aeration center cylinder and/or the back taper part, wherein the transition zone is communicated with the water outlet end of the back taper part, and the transition zone is positioned at the upstream of the sludge backflow zone.
Optionally, a sludge sedimentation area is formed between the fourth cylinder and the main body, the sludge sedimentation area is communicated with the water outlet end of the transition area, a sludge reflux cylinder is arranged in the sludge sedimentation area, a sludge reflux channel is formed between the sludge reflux cylinder and the main body, and a sludge collecting hopper is arranged in the sludge reflux channel.
The technical scheme of the invention has the following advantages:
1. the invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, which comprises a main body, wherein a water inlet part is arranged; the first cylinder is arranged in the main body, a first anoxic zone is formed in the first cylinder, and the first anoxic zone is communicated with the water inlet part; the second cylinder is arranged in the main body, sleeved outside the first cylinder and forms an aerobic zone with the first cylinder, an aerator is arranged in the aerobic zone, and the aerobic zone and the first anoxic zone form a first circulating waterway for water flow; the third cylinder is arranged in the main body, is sleeved outside the second cylinder, forms a second anoxic zone with the second cylinder, and forms a second circulating waterway for water body flow with the aerobic zone.
According to the invention, the first anoxic zone, the second anoxic zone and the second anoxic zone are sequentially sleeved from inside to outside through the first barrel, the second barrel and the third barrel, the water body enters the main body from the first anoxic zone and then flows into the aerobic zone, and then a part of water body circularly flows along the first circulating waterway, and the other part of water body circularly flows along the second circulating waterway, so that various microorganisms in the water body can alternately enter a growth environment favorable for the self, the growth environment unfavorable for the self cannot be inhibited for a long time, high bioactivity is maintained, the water body is subjected to high-efficiency rapid reaction, the water purifying treatment effect is enhanced, and compared with the water body which only has a circulation path formed by one anoxic zone and one aerobic zone in the prior art, the water purifying treatment effect is improved;
In addition, because the first anoxic zone, the aerobic zone and the second anoxic zone are sequentially sleeved from inside to outside, and the aerobic zone with the overlapped first circulating waterway and second circulating waterway is positioned between the first anoxic zone and the second anoxic zone, compared with the water body path with a circulating center in the prior art, the water body path is shorter than the water body path with a circulating periphery, so that the circulating flow of the water body is unbalanced.
2. According to the inverted multi-ring flow micro-power aerobic granular sludge water treatment device provided by the invention, a sludge reflux area is formed between the third cylinder and the main body, and a third circulating waterway for water body flow is formed between the sludge reflux area and the aerobic area.
The sludge reflux zone is formed between the third cylinder and the main body, the water body enters the sludge reflux zone after circulating flowing through the first circulating waterway and the second circulating waterway, and then returns to the aerobic zone to form the third circulating waterway for flowing the water body, so that the circulation of the primary water body is increased, and the water body returns to the third cylinder to perform the water purification reaction in the first circulating waterway and the second circulating waterway again, so that the purifying effect of the device is better.
3. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, which also comprises a water distribution cone, wherein the water distribution cone is arranged in the main body, the water outlet of the first cylinder body is arranged towards the water distribution cone, and the width of the water distribution cone is gradually increased along the flowing direction of a water body.
The water distribution cone is arranged in the main body, the water outlet of the first cylinder body is arranged towards the water distribution cone, the water outlet of the first cylinder body is guided by the water distribution cone, the water body is guided by the cone with gradually increased width after impacting the water distribution cone, and flows towards the water inlet end of the aerobic zone, so that the water body is prevented from directly impacting the main body to form a reflection flow, the water body in the first cylinder body is prevented from flowing out and entering the aerobic zone, and the water body can smoothly enter the aerobic zone to form a first circulating waterway and a second circulating waterway.
4. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, wherein a third cylinder body comprises an inverted cone part which is covered on the water outlet end of a second cylinder body, and the inverted cone part is provided with a water outlet; and a backflow guide plate is arranged in a space formed by the inverted cone part, and the backflow guide plate is positioned in the direction that the water body flows from the water outlet end of the second cylinder body to the water outlet.
The third cylinder body comprises a reverse cone part, the water body after the mixed reaction of the first circulating waterway and the second circulating waterway flows out through a water outlet of the reverse cone part, a reflux guide plate is arranged on the water body in the flowing direction from the water outlet end of the second cylinder body towards the water outlet, the water body is prevented from flowing out through the water outlet directly after entering the aerobic zone from the first anoxic zone, and the first circulating waterway and the second circulating waterway cannot be formed.
5. According to the inverted multi-ring flow micro-power aerobic granular sludge water treatment device provided by the invention, the reflux guide plate is obliquely arranged, one side of the reflux guide plate, which is close to the water outlet end of the second cylinder, faces the water inlet end of the first cylinder, and one side of the reflux guide plate, which is far away from the water outlet end of the second cylinder, faces the inverted cone.
The water body flows towards the water inlet end of the first cylinder body after impacting the reflux guide plate, a part of water body flows towards the water inlet end of the first cylinder body under the guiding action of the inverted cone part, so that the water body forms a first circulating waterway, meanwhile, the reflux guide plate is arranged towards the inverted cone part from one side away from the water outlet end of the second cylinder body, another part of water body flows towards the inverted cone part after impacting the reflux guide plate, and after impacting the inverted cone part, a part of water body enters the second anoxic zone under the guiding action of the inverted cone part and the self gravity action, so that the water body forms a second circulating waterway, and the other part of water body flows towards the water outlet under the guiding action of the inverted cone part and flows out of the water outlet, so that the flow of the water body outlet is ensured, and excessive water body is prevented from remaining in the first circulating waterway and the second circulating waterway.
6. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device which also comprises an aeration center cylinder, wherein the aeration center cylinder is arranged at the water outlet end of the inverted cone part, and a turbulence assembly is arranged in the aeration center cylinder.
The water outlet end of the inverted cone part is provided with the aeration center cylinder, and water passing through the water outlet enters the aeration center cylinder, and as part of water flows into the aeration center cylinder from the aerobic zone, the water is provided with gas provided by the aerator, so that the water can also perform aerobic reaction in the aeration center cylinder, thereby enhancing the water purifying effect of the water; meanwhile, a turbulence assembly is arranged in the aeration central cylinder, turbulence is formed at the turbulence assembly by the water body, the mixing of sewage and microorganisms in the water body is further promoted, and the reaction effect and the water purifying effect are improved; in addition, the flow of the sludge can be blocked by forming turbulence, so that the sludge is separated from the water body and falls back into the inner space of the third cylinder, thereby improving the content and the concentration of the activated sludge in the first anoxic zone, the aerobic zone and the second anoxic zone, and improving the water treatment effect of the first anoxic zone, the aerobic zone and the second anoxic zone.
7. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, which comprises a turbulent flow assembly, a water treatment device and a water treatment device, wherein the turbulent flow assembly comprises a third guide plate, is arranged on an aeration center cylinder and is obliquely arranged towards the water inlet end of the aeration center cylinder; the turbulent flow plate is arranged in an obtuse angle space formed by the third guide plate and the aeration central cylinder, and is obliquely arranged towards the water outlet end of the aeration central cylinder along the flow direction of the water body, and a backflow gap is formed between the turbulent flow plate and the aeration central cylinder.
The turbulent flow assembly comprises a third guide plate which is obliquely arranged towards the water inlet end of the aeration central cylinder, and after the water body flows and hits the third guide plate, backflow is formed at the lower end of the third guide plate, so that the mixing effect of sewage and microorganisms in the water body is enhanced, and the separation of sludge in the water body is promoted; meanwhile, the water body can only flow upwards by bypassing the third guide plate due to the blocking of the third guide plate, so that the radial area of the flowing water body is reduced at the end part of the third guide plate, the radial area of the flowing water body is increased after bypassing the third guide plate, the water body expands radially, and accordingly impacts on the turbulence plate, and turbulence is generated by backflow through a backflow gap after bypassing the turbulence plate, so that the full mixing and reaction of sewage and microorganisms in the water body are further promoted, and the water purifying effect of the device is improved.
8. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device which further comprises a first guide plate, wherein the first guide plate is arranged in an aerobic zone and is obliquely arranged towards the cavity wall of the aerobic zone along the flow direction of a water body.
According to the invention, the first guide plate is arranged in the aerobic zone, and after the water body in the aerobic zone impacts the first guide plate in the flowing process, backflow is formed at one side of the first guide plate facing the upstream direction of the water body, so that the mixing of sewage and microorganisms in the water body is promoted, and the reaction effect in the aerobic zone is improved.
9. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, which also comprises a second guide plate, wherein the second guide plate is arranged in a second anoxic zone, and is obliquely arranged towards the water outlet end of the second anoxic zone along the flow direction of a water body.
According to the invention, the second guide plate is arranged in the second anoxic zone, the water body in the second anoxic zone is guided by the second guide plate to flow, so that the radial area of water flow is reduced at the end part of the second guide plate, and after the water body flows through the end part of the second guide plate, the radial area of water flow is increased, so that the water body flows into the space of an included angle between the second guide plate and the cavity wall of the second anoxic zone, and turbulence is formed, thereby promoting the mixing of sewage and microorganisms in the water body and improving the reaction effect in the second anoxic zone.
10. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, which further comprises a fourth cylinder body, wherein a transition area is formed between the fourth cylinder body and the aeration central cylinder and/or the inverted cone part, the transition area is communicated with the water outlet end of the inverted cone part, and the transition area is positioned at the upstream of the sludge reflux area.
According to the invention, the fourth cylinder is arranged to form the transition zone, and because the transition zone is a non-aeration zone, water can be subjected to dynamic static mud-water preliminary separation in the transition zone, and sludge is settled, compressed and gathered from the water, so that granulation of flocculated sludge is promoted, the content of flocculated sludge in the water is reduced, the purification effect of effluent is enhanced, the separated sludge is returned to the inner space of the third cylinder through the sludge return zone, and therefore, the content and concentration of activated sludge in the first anoxic zone, the aerobic zone and the second anoxic zone are improved, and the water treatment effect of the first anoxic zone, the aerobic zone and the second anoxic zone is improved.
11. The invention provides an inverted multi-ring flow micro-power aerobic granular sludge water treatment device, wherein a sludge sedimentation area is formed between a fourth cylinder and a main body, the sludge sedimentation area is communicated with a water outlet end of a transition area, a sludge reflux cylinder is arranged in the sludge sedimentation area, a sludge reflux channel is formed between the sludge reflux cylinder and the main body, and a sludge collecting hopper is arranged in the sludge reflux channel.
The sludge sedimentation area is formed between the fourth cylinder and the main body, the water body performs precipitation type sludge-water separation in the sludge sedimentation area, so that sludge in the water body is sedimented, suspended matters in the water body are gathered and sunk, the sludge separation is realized, the sludge content in the water body is reduced, the water purifying effect of the device is improved, meanwhile, the sludge reflux cylinder is arranged in the sludge sedimentation area to form a sludge reflux channel, when the water body enters the sludge sedimentation area and rises above the sludge reflux cylinder, the water flow speed is slowed down due to the suddenly increased water flow area, so that part of suspended matters and smaller sludge rising to the water body pass through the sludge reflux cylinder and enter the sludge reflux channel to be refluxed to the sludge reflux area or be collected and discharged by the sludge collecting hopper, the content of suspended matters and sludge in the sludge sedimentation area is reduced, and the purification effect of discharged water is improved.
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 side sectional view of embodiment 1 of the present invention;
FIG. 3 is a schematic view of a turbulator assembly provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of the position structure of the sludge hopper provided in embodiment 1 of the present invention.
Reference numerals illustrate:
1. a water inlet part; 2. a spray head; 3. a first cylinder; 4. an aerobic zone; 5. an aerator; 6. a second anoxic zone; 7. a sludge recirculation zone; 8. a second guide plate; 9. a return guide; 10. an aeration center cylinder; 11. a water passing hole; 12. a transition zone; 13. a sludge settling zone; 14. a sludge reflux drum; 15. a fourth cylinder; 16. a pipe chute separating device; 17. a water outlet weir; 18. a water outlet part; 19. a mud collecting hopper; 20. a mud collecting pipe; 21. a sludge return pipe; 22. a water distribution cone; 23. a sludge discharge pipe; 24. a first anoxic zone; 25. a second cylinder; 26. a third cylinder; 27. a first guide plate; 28. a reverse taper portion; 29. a third guide plate; 30. a turbulence plate; 31. a main body; 32. a water outflow port; 33. and (5) evacuating the pipe.
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-ring flow micro-power aerobic granular sludge water treatment device, as shown in fig. 1-4, comprising:
the main body 31 is provided with a water inlet part 1 and a water outlet part 18, wherein the water inlet part 1 is used for introducing a water body containing sewage into the main body 31, and the water outlet part 18 is used for leading out the water body treated by the equipment; the structure of the main body 31 is not particularly limited in this embodiment, and in order to avoid dead angles formed in the inner space of the main body 31, it is preferable that the main body 31 in this embodiment is cylindrical, however, in other embodiments, the main body 31 may be rectangular, spherical, etc.; in the present embodiment, the material of the main body 31 is not limited, and steel structure, concrete structure, polymer material, etc. may be used.
The first barrel 3 is arranged in the main body 31, and can be connected with the main body 31 through a bracket or other barrels, a first anoxic zone 24 is formed in the first barrel 3, and the first anoxic zone 24 is communicated with the water inlet part 1.
In this embodiment, the structure of the first barrel 3 is not specifically limited, preferably, the first barrel 3 in this embodiment is configured as a cylindrical barrel adapted to the main body 31, and at the same time, in order to increase the speed of the water body flowing, reduce the power consumption in this embodiment, at least a part of the inner diameter of the water outlet end of the first barrel 3 is reduced, the water body can generate an instant flow velocity increase at the position so as to increase the flow velocity of the water body, thereby providing the force of the water body flowing, preferably, the transition part of which the inner diameter changes is configured in a conical shape in order to reduce the resistance of the water body flowing, and the water inlet end of the first barrel 3 is in a diffusion shape, so that the water body is convenient to flow back into the first barrel 3; of course, in other embodiments, the first cylinder 3 may be a polygonal cylinder.
The second cylinder 25 is arranged in the main body 31, and can be connected with the main body 31 through a bracket, and can also be connected with other cylinders through a bracket, and the second cylinder 25 is sleeved outside the first cylinder 3 and forms an aerobic zone 4 with the first cylinder 3, an aerator 5 is arranged in the aerobic zone 4, and the aerobic zone 4 and the first anoxic zone 24 form a first circulating waterway for water body flow.
The structure of the second cylinder 25 is not particularly limited in this embodiment, and preferably, the second cylinder 25 of this embodiment is a cylindrical cylinder adapted to the main body 31 and is coaxially sleeved with the first cylinder 3; of course, in other embodiments, the second cylinder 25 may be a polygonal cylinder, and the axis of the second cylinder 25 and the axis of the first cylinder 3 may be slightly inclined or parallel.
In order to promote the mixing and reaction of the sewage and the microorganism in the water body in the aerobic zone 4, the first guide plate 27 is further arranged in the aerobic zone 4, and the first guide plate 27 is obliquely arranged towards the cavity wall of the aerobic zone 4 along the flow direction of the water body, preferably, as shown in fig. 1, the first guide plate 27 of the embodiment is arranged at one side of the second cylinder 25 towards the aerobic zone 4, and of course, in other embodiments, the first guide plate 27 can also be arranged at one side of the first cylinder 3 towards the aerobic zone 4; after the water body in the aerobic zone 4 hits the first guide plate 27 in the flowing process, backflow is formed on one side of the first guide plate 27 facing the upstream direction of the water body, so that mixing of sewage and microorganisms in the water body is promoted, the reaction effect in the aerobic zone 4 is improved, and in order to avoid gas accumulation at the first guide plate 27, preferably, the first guide plate 27 is provided with vent holes.
The water distribution cone 22 is arranged in the main body 31, the water outlet of the first barrel 3 is arranged towards the water distribution cone 22, the width of the water distribution cone 22 is gradually increased along the flowing direction of water, the water outlet of the first barrel 3 is guided by the cone with gradually increased width after impacting the water distribution cone 22, flows towards the water inlet end of the aerobic zone 4, the water is prevented from directly impacting the main body 31 to form a reflection flow, the water in the first barrel 3 is prevented from flowing out and entering the aerobic zone 4, and meanwhile, in order to enable the water outlet of the first barrel 3 to be subjected to the air stripping action of the aerator 5 in the first time after entering the aerobic zone 4, the aerator 5 is preferably arranged at the water inlet end of the aerobic zone 4.
The third cylinder 26 is disposed in the main body 31, and may be connected to the main body 31 through a bracket, or may be connected to other cylinders through a bracket, and the third cylinder 26 is sleeved outside the second cylinder 25, and forms a second anoxic zone 6 with the second cylinder 25, where the second anoxic zone 6 and the aerobic zone 4 form a second circulation waterway for water flow.
The structure of the third cylinder 26 is not particularly limited in this embodiment, and it is preferable that the third cylinder 26 of this embodiment is provided as a cylindrical cylinder fitted with the main body 31 and is sleeved coaxially with the second cylinder 25; of course, in other embodiments, the third cylinder 26 may be a polygonal cylinder, and the axis of the third cylinder 26 and the axis of the second cylinder 25 may be slightly inclined or parallel.
In order to promote the mixing and reaction of the sewage and the microorganism in the water body in the second anoxic zone 6, in this embodiment, a second guide plate 8 is further disposed in the second anoxic zone 6, and along the flow direction of the water body, the second guide plate 8 is disposed obliquely towards the water outlet end of the second anoxic zone 6, preferably, as shown in fig. 1, the second guide plate 8 is disposed on one side of the third cylinder 26 towards the second anoxic zone 6, and of course, in other embodiments, the second guide plate 8 may also be disposed on one side of the second cylinder 25 towards the second anoxic zone 6, and the water body in the second anoxic zone 6 is guided by the second guide plate 8 to flow, so that at the end position of the second guide plate 8, the radial area of the water flow is reduced, and after the water body flows through the end position of the second guide plate 8, the water body flows into the included angle space between the second guide plate 8 and the third cylinder 26 due to the increase of the radial area of the water flow, thereby forming turbulence, so as to promote the mixing of the sewage and the microorganism in the water body and promote the reaction in the second anoxic zone 6.
In order to ensure that the water outlet of the aerobic zone 4 flows to the water inlet ends of the first anoxic zone 24 and the second anoxic zone 6 to form a first circulating waterway and a second circulating waterway and simultaneously control the water quantity of the water flowing out of the inner space of the third barrel 26, the third barrel 26 of the embodiment comprises a reverse cone part 28 which is covered on the water outlet end of the second barrel 25, the reverse cone part 28 is provided with a water outlet 32, a backflow guide plate 9 is arranged in the space formed by the reverse cone part 28, the backflow guide plate 9 is positioned in the direction that the water flows from the water outlet end of the second barrel 25 to the water outlet 32, the backflow guide plate 9 and the reverse cone part 28 are arranged to guide the water outlet of the aerobic zone 4, and simultaneously prevent the water outlet of the aerobic zone 4 from flowing out of the water outlet 32 completely, so that the first circulating waterway and the second circulating waterway cannot be formed; in addition, the inverted cone 28 reduces resistance to water flow and avoids dead corners that may lead to gas accumulation.
In this embodiment, the structure of the backflow guide plate 9 is not specifically limited, preferably, as shown in fig. 1 and fig. 2, the backflow guide plate 9 in this embodiment adopts a conical plate, one side of the backflow guide plate 9, which is close to the water outlet end of the second cylinder 25, faces the water inlet end of the first cylinder 3, after impacting the backflow guide plate 9, a part of water body is guided to flow towards the water inlet end of the first cylinder 3, so as to ensure that the water body forms a first circulation waterway, meanwhile, one side, which is far away from the water outlet end of the second cylinder 25, of the backflow guide plate 9 is arranged towards the inverted cone 28, another part of water body after impacting the backflow guide plate 9 flows towards the inverted cone 28, and after impacting the inverted cone 28, a part of water body enters the second anoxic zone 6 under the guiding action of the inverted cone 28 and the gravity of the water body, so as to ensure that a second circulation waterway is formed, another part of the water body flows towards the water outlet 32 under the guiding action of the inverted cone 28, and flows out of the water outlet 32, so as to ensure that the flow of the water body outflow 32, and the water body flows away from the water outlet 32, and the sludge is prevented from flowing back through the backflow guide plate 9 and the second circulation guide plate 9, and the sludge is prevented from flowing back through the central circulation guide plate 9, and the backflow waterway; of course, in other embodiments, the return guide 9 may also be a polygonal pyramid-shaped plate or a polygonal pyramid-shaped block or a conical block, or a plurality of inclined plates arranged circumferentially, or a horizontal baffle or stop.
In this embodiment, a sludge recirculation zone 7 is formed between the third cylinder 26 and the main body 31, the sludge recirculation zone 7 and the aerobic zone 4 form a third circulation waterway for flowing water, the water flowing out from the water outlet 32 enters the sludge recirculation zone 7, then flows out from the water outlet end of the sludge recirculation zone 7 and merges with the water outlet of the second anoxic zone 6, and then flows back into the aerobic zone 4 under the suction effect formed by the stripping action of the aerator 5, so as to prevent the water outlet of the sludge recirculation zone 7 from entering the second anoxic zone 6 and simultaneously prevent the water outlet of the second anoxic zone 6 from entering the sludge recirculation zone 7, preferably, as shown in fig. 1, the bottom of the main body 31 is tapered, and the water outlet of the sludge recirculation zone 7 and the water outlet of the second anoxic zone 6 are led to flow towards the water inlet end of the aerobic zone 4, and simultaneously the end of the third cylinder 26 located at the water outlet end is bent towards the direction away from the sludge recirculation zone 7; because the sludge recirculation zone 7 is a non-aeration zone, the sludge in the water body can be separated out, the bottom of the main body 31 is tapered to also play a role in collecting the sludge, the sludge is prevented from accumulating on the water flow channel to obstruct the flow of the water body, and in order to discharge the useless sludge accumulated at the bottom of the main body 31, the embodiment is provided with an emptying pipe 33 communicated with the tapered space at the bottom of the main body 31.
In order to further improve the water purifying effect of the embodiment, in the embodiment, an aeration center cylinder 10 is arranged at the water outlet end of the inverted cone 28, a turbulence assembly is arranged in the aeration center cylinder 10, water flows out from a water outlet 32 and then enters the aeration center cylinder 10, turbulence is generated under the action of the turbulence assembly, and the mixing and reaction effects of sewage and microorganisms in the water are further promoted; of course, in other embodiments, the aeration center cartridge 10 may not be provided, and the water body directly flows out from the water outlet 32 and then enters the sludge recirculation zone 7.
The structure of the turbulence module in this embodiment is not particularly limited, and preferably, as shown in fig. 1 and 3, the turbulence module in this embodiment includes a third guide plate 29 disposed on the aeration center tube 10 and inclined toward the water inlet end of the aeration center tube 10; the turbulence plate 30 is disposed in an obtuse angle space formed by the third guide plate 29 and the aeration center tube 10, and is inclined toward the water outlet end of the aeration center tube 10 along the flow direction of the water body, and a backflow gap is formed between the turbulence plate 30 and the aeration center tube 10; after the water body flows and hits the third guide plate 29, backflow is formed at the lower end of the third guide plate 29, so that the mixing effect of sewage and microorganisms in the water body is enhanced, the separation of sludge in the water body is promoted, meanwhile, as the third guide plate 29 is blocked, the water body can only flow upwards by bypassing the third guide plate 29, so that the radial area of the water body flowing is reduced at the end position of the third guide plate 29, after bypassing the third guide plate 29, the radial area of the water body flowing is increased, the water body radially expands, and thus the water body hits the turbulent flow plate 30, after bypassing the turbulent flow plate 30, the backflow clearance is formed, the full mixing and reaction of sewage and microorganisms in the water body are further promoted, the water purifying effect of the embodiment is promoted, and in order to avoid the third guide plate 29 to form gas accumulation, preferably, the third guide plate 29 is provided with vent holes; as shown in fig. 1, in this embodiment, a turbulence assembly is preferably disposed at the water inlet position of the aeration center cylinder 10, and at this time, the third guide plate 29 also plays a role in guiding the effluent of the aerobic zone 4, and a part of the water bypassing the reflux guide plate 9 flows back into the second anoxic zone 6 after striking the third guide plate 29, so as to avoid excessive water flowing out through the water outlet 32; of course, in other embodiments, the turbulator assembly could be just the third guide plate 29, or a horizontally disposed baffle or stop.
In this embodiment, the structure of the water outlet end of the aeration center tube 10 is not particularly limited, and preferably, as shown in fig. 1, the water outlet end of the aeration center tube 10 is provided with a plurality of water passing holes 11, which play a role in screening sludge, so as to prevent larger sludge from being discharged out of the aeration center tube 10, and in other embodiments, water can also directly flow out through the water outlet end of the aeration center tube 10.
In order to further enhance the water purifying effect of the present embodiment, preferably, as shown in fig. 1, a fourth cylinder 15 is further provided, and a transition zone 12 is formed between the aeration central cylinder 10 and the inverted cone 28, the transition zone 12 is communicated with the water outlet end of the inverted cone 28, and the transition zone 12 is located at the upstream of the sludge recirculation zone 7, the water flowing out from the water outlet 32 enters the aeration central cylinder 10 and enters the transition zone 12 through the water holes 11, and then flows back through the sludge recirculation zone 7, and because the transition zone 12 is a non-aeration zone, the water is subjected to dynamic standing preliminary separation in the transition zone 12, and the sludge is settled, compressed and gathered from the water body, thereby promoting granulation of the flocculated sludge, reducing the content of the flocculated sludge in the water body, enhancing the purifying effect of the effluent, returning the separated sludge to the inner space of the third cylinder 26 through the sludge recirculation zone 7, thereby enhancing the content and concentration of the activated sludge in the first and second anoxic zones 24, 4 and 6, and enhancing the anoxic treatment effects of the anoxic zones 6; of course, in other embodiments, when the aeration center cartridge 10 is not provided, the transition zone 12 is formed by the space between the back taper 28 and the fourth cartridge body 15, and the water flowing from the water outflow port 32 directly enters the transition zone 12.
A sludge sedimentation zone 13 is formed between the fourth cylinder 15 and the main body 31, the sludge sedimentation zone 13 is communicated with the water outlet end of the transition zone 12, and the water inlet of the sludge sedimentation zone 13 is positioned above the sludge recirculation zone 7, so that the sludge precipitated and separated in the sludge sedimentation zone 13 falls into the sludge recirculation zone 7.
Further, in order to reduce the concentration of the sludge and suspended matters in the sludge settling zone 13 and further reduce the content of the sludge and suspended matters in the water discharged from the water outlet portion 18, in this embodiment, a sludge backflow cylinder 14 is disposed in the sludge settling zone 13, a sludge backflow channel is formed between the sludge backflow cylinder 14 and the main body 31, the sludge backflow channel is communicated with the sludge backflow zone 7, when the water enters the sludge settling zone 13 and rises above the sludge backflow cylinder 14, the water flow speed is slowed down due to the suddenly increased water flow area, so that part of the suspended matters and smaller sludge rising to the water along with the water pass through the sludge backflow cylinder 14 and enter the sludge backflow channel to flow back to the sludge backflow zone 7.
Further, in order to collect the sludge and suspended matters in the sludge backflow channel, avoid occupying the space in the main body 31, reduce the emptying amount of the emptying pipe 33, as shown in fig. 1 and 4, in this embodiment, four sludge collection hoppers 19 are arranged in the sludge backflow channel, preferably four sludge collection hoppers 19 are arranged at equal intervals, the sludge collection hoppers 19 discharge the mixture in the sludge collection hoppers 19 through the sludge collection pipes 20, the sludge collection pipes 20 can be directly communicated with the external space of the main body 31, can also be connected with the sludge discharge pipes 23 to introduce the mixture into storage equipment, and can also be provided with the sludge backflow pipes 21 communicated with the first anoxic zone 24 on the sludge discharge pipes 23, and backflow the mixture into the first anoxic zone 24 through valve control so as to supplement the activated sludge in the first anoxic zone 24, the aerobic zone 4 and the second anoxic zone 6, and simultaneously utilize the adsorption effect of the mixture to mix with the effluent water entering the water part 1 in the first anoxic zone 24, so as to adsorb impurities in the water body and form sludge rapidly.
In order to reduce the sludge content in the effluent of the apparatus of this embodiment, as shown in fig. 1, the effluent end of the sludge settling zone 13 of this embodiment is provided with a chute separation device 16, the chute separation device 16 includes a plurality of inclined plates or chute pipes arranged in parallel, a water body flowing path is formed between the inclined plates or chute pipes, when water body flows out from the path, suspended matters and smaller sludge can be blocked and adsorbed on the inclined plates or chute pipes, and further aggregate and fall down, so that the water purifying effect can be further improved, suspended matters and sludge in the effluent of this embodiment are reduced, the water flowing out from the chute separation device 16 can enter the effluent weir 17, and then flows out of the main body 31 through the effluent portion 18, and the effluent weir 17 is arranged at the inlet end of the effluent portion 18.
In this embodiment, the power device for the water body of the water inlet portion 1 is not particularly limited, and may adopt a mode of arranging a water pump, as shown in fig. 1, in this embodiment, a nozzle 2 is arranged at the end portion of the water inlet portion 1, at least a portion of the inner diameter of the nozzle 2 is reduced along the flow direction of the water body, and the outlet end of the nozzle 2 is arranged towards the water distribution cone 22, because at least a portion of the inner diameter of the nozzle 2 is reduced, the instantaneous flow velocity of the water body is increased at the position, so as to promote the flow velocity of the water body, and further provide the power for the water body to flow, and according to the bernoulli principle, a lower water pressure is formed at the outlet of the nozzle 2, and the water body in the aerobic zone 4 is caused to flow back into the first anoxic zone 24 under the action of the low pressure.
In this embodiment, the spray head 2 is disposed towards the water distribution cone 22, i.e. along the gravity direction, and the outlet end of the spray head 2 is disposed downward, i.e. the spray head 2 is disposed upside down, i.e. is inverted.
In this embodiment, the water inlet portion 1 is communicated with the first anoxic zone 24, so that the water body entering the device is firstly mixed with the water body in the first anoxic zone 24 and subjected to denitrification reaction, that is, compared with the scheme of the prior art that the anoxic zone is arranged behind the aerobic zone, the scheme of the prior art that the denitrification reaction in the anoxic zone is poor because the nitrification reaction of the aerobic zone 4 consumes carbon sources in the water body is adopted, the first anoxic zone 24 is arranged in front of the water body, the water body is firstly subjected to denitrification reaction, the denitrification effect of the first anoxic zone 24 is better because the carbon sources in the water entering the device are not consumed, and the water purifying effect of the device is better, meanwhile, the first anoxic zone 24, the aerobic zone 4 and the second anoxic zone 6 of the embodiment are sleeved in turn from inside to outside, and the water body rapidly alternates in the aerobic environment, and compared with the scheme of the aerobic zone with a certain distance in the prior art, and the rapid alternation of the water body also enables the water body to flow in a single circulation in the aerobic zone 4 to have more than the aerobic zone 4 in the aerobic zone in the prior art, and the water channel of the water body flowing back to the aerobic zone 4 in the aerobic zone is more than the aerobic zone 4 in the aerobic zone in the process of the aerobic zone.
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 (8)
1. Inversion type multi-ring flow micro-power aerobic granular sludge water treatment device is characterized by comprising:
the water inlet device comprises a main body (31) provided with a water inlet part (1), wherein a spray head (2) is arranged at the end part of the water inlet part (1), and the outlet end of the spray head (2) is downwards arranged;
the first cylinder body (3) is arranged in the main body (31), a first anoxic zone (24) is formed in the first cylinder body (3), and the first anoxic zone (24) is communicated with the water inlet part (1);
the second cylinder (25) is arranged in the main body (31), the second cylinder (25) is sleeved outside the first cylinder (3) and forms an aerobic zone (4) with the first cylinder (3), an aerator (5) is arranged in the aerobic zone (4), and the aerobic zone (4) and the first anoxic zone (24) form a first circulating waterway for water body flow;
The third cylinder (26) is arranged in the main body (31), the third cylinder (26) is sleeved outside the second cylinder (25) and forms a second anoxic zone (6) with the second cylinder (25), and the second anoxic zone (6) and the aerobic zone (4) form a second circulating waterway for water body flow;
wherein the third cylinder (26) comprises: a reverse taper part (28) which is covered on the water outlet end of the second cylinder (25), wherein the reverse taper part (28) is provided with a water outlet (32); a backflow guide plate (9) is arranged in a space formed by the inverted cone part (28), the backflow guide plate (9) is positioned in the direction that the water body flows from the water outlet end of the second cylinder (25) to the water outlet (32), and the backflow guide plate (9) and the inverted cone part (28) are arranged to guide the water outlet of the aerobic zone (4) so as to guide the water body to enter the first anoxic zone (24) and the second anoxic zone (6);
a sludge reflux zone (7) is formed between the third cylinder (26) and the main body (31), a third circulating waterway for water body flow is formed between the sludge reflux zone (7) and the aerobic zone (4), water body flowing out of the water outlet (32) enters the sludge reflux zone (7), then flows out of the water outlet end of the sludge reflux zone (7) and is converged with water outlet of the second anoxic zone (6), and then flows back into the aerobic zone (4) under the suction effect formed by the stripping action of the aerator (5);
A fourth cylinder (15) and the reverse cone (28) form a transition zone (12), the transition zone (12) is communicated with the water outlet end of the reverse cone (28), and the transition zone (12) is positioned at the upstream of the sludge backflow zone (7);
a sludge sedimentation zone (13) is formed between the fourth cylinder (15) and the main body (31), the sludge sedimentation zone (13) is communicated with the water outlet end of the transition zone (12), a sludge reflux cylinder (14) is arranged in the sludge sedimentation zone (13), and a sludge reflux channel is formed between the sludge reflux cylinder (14) and the main body (31).
2. The inverted multi-loop flow micro-dynamic aerobic granular sludge water treatment device of claim 1, further comprising:
the water distribution cone (22) is arranged in the main body (31), the water outlet of the first cylinder (3) faces the water distribution cone (22), and the width of the water distribution cone (22) is gradually increased along the flowing direction of the water body.
3. The inverted multi-ring flow micro-dynamic aerobic granular sludge water treatment device according to claim 2, wherein the reflux guide plate (9) is obliquely arranged, one side of the reflux guide plate, which is close to the water outlet end of the second cylinder (25), is arranged towards the water inlet end of the first cylinder (3), and one side of the reflux guide plate, which is far away from the water outlet end of the second cylinder (25), is arranged towards the inverted cone (28).
4. The inverted multi-loop flow micro-dynamic aerobic granular sludge water treatment device as claimed in claim 3, further comprising:
the aeration center cylinder (10) is arranged at the water outlet end of the inverted cone part (28), and a turbulence assembly is arranged in the aeration center cylinder (10).
5. The inverted multi-loop flow micro-dynamic aerobic granular sludge water treatment device of claim 4, wherein said turbulence assembly comprises:
the third guide plate (29) is arranged on the aeration center cylinder (10) and is obliquely arranged towards the water inlet end of the aeration center cylinder (10);
the turbulence plate (30) is arranged in an obtuse angle space formed by the third guide plate (29) and the aeration central cylinder (10), and is obliquely arranged towards the water outlet end of the aeration central cylinder (10) along the flow direction of the water body, and a backflow gap is formed between the turbulence plate (30) and the aeration central cylinder (10).
6. An inverted multi-loop flow micro-dynamic aerobic granular sludge water treatment device according to any one of claims 1-3, further comprising:
the first guide plate (27) is arranged in the aerobic zone (4), and the first guide plate (27) is obliquely arranged towards the cavity wall of the aerobic zone (4) along the flow direction of the water body.
7. An inverted multi-loop flow micro-dynamic aerobic granular sludge water treatment device according to any one of claims 1-3, further comprising:
the second guide plate (8) is arranged in the second anoxic zone (6), and the second guide plate (8) is obliquely arranged towards the water outlet end of the second anoxic zone (6) along the flow direction of the water body.
8. The inverted multi-ring flow micro-power aerobic granular sludge water treatment device according to claim 1, wherein a sludge collecting hopper (19) is arranged in the sludge return channel.
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