CN212050740U - Integrated AO biofilm reactor - Google Patents
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- CN212050740U CN212050740U CN202020206634.3U CN202020206634U CN212050740U CN 212050740 U CN212050740 U CN 212050740U CN 202020206634 U CN202020206634 U CN 202020206634U CN 212050740 U CN212050740 U CN 212050740U
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Abstract
The utility model relates to an integration AO biofilm reactor belongs to the waste water treatment field. The reactor main body is correspondingly divided into an anoxic tank, an aerobic tank outer cavity channel, an aerobic tank inner cavity channel and a sedimentation tank, and a wastewater inlet pipe is arranged at the starting end of the anoxic tank; the tail end of the aerobic tank outer cavity channel is arranged corresponding to the starting end of the aerobic tank inner cavity channel, and the two cavity channels are communicated through water passing holes; the tail end of the inner cavity channel of the aerobic tank is provided with an aerobic tank effluent weir, and the aerobic tank effluent weir is connected with the central pipe through a sedimentation tank water inlet pipe; the central pipe is inserted in the center of the sedimentation tank, and the bottom of the central pipe is provided with an umbrella-shaped baffle; the top of the sedimentation tank is provided with a sedimentation tank effluent weir connected with a purified water outlet pipe; fixed biological fillers are arranged in the anoxic tank, and suspended fillers are arranged in the external cavity channel of the aerobic tank and the internal cavity channel of the aerobic tank. This reactor is through reasonable structural layout, makes the reactor have higher pollutant removal ability, guarantees that the suspension packs and fully fluidizes, avoids piling up of packing, possesses less area.
Description
Technical Field
The utility model belongs to the waste water treatment field, concretely relates to integration AO biofilm reactor.
Background
Along with the increasingly strict environmental requirements, the importance of wastewater treatment is increasingly prominent, and effluent water simultaneously meets the indexes of organic matters and ammonia nitrogen.
The AO (anoxic-aerobic) process is a mature wastewater treatment process, is widely applied to wastewater treatment, and is characterized in that nitrate nitrogen in wastewater is converted into nitrogen by using denitrification generated in an anoxic process, organic matters are decomposed by using an aerobic process, ammonia nitrogen is converted into nitrate nitrogen by using nitrification, and meanwhile, a mixed solution containing a large amount of nitrate nitrogen flows back to an anoxic section to be subjected to denitrification again, so that the organic matters and the ammonia nitrogen in the wastewater are removed. However, the traditional AO reactor has the problem of low treatment efficiency, higher organic matter concentration is not beneficial to the nitrification, the most beneficial environment of the nitrification is high dissolved oxygen and low organic matter content, the traditional AO reactor mostly adopts a complete mixing type, the organic matter concentration in the reactor is higher, the nitrification efficiency is lower, the denitrification effect of the reactor is influenced, and the traditional AO process also has the problem of large occupied area.
The biofilm reactor is used as important equipment for wastewater treatment, is widely applied to the wastewater treatment industry, and provides attachment sites for the growth and propagation of microorganisms by adding fixed fillers or suspended fillers into water, so that a biofilm is formed on the fillers to treat wastewater, and the traditional moving bed biofilm reactor has the following characteristics: 1) the filler is stacked at the bottom of the tank; 2) the filler can move freely in the tank body, has no fixed direction, has poor fluidization effect, and has poor contact and mixing degree of the biomembrane on the filler and the wastewater, thereby influencing the wastewater treatment effect and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an integration AO biofilm reactor to solve that the sewage treatment effect that traditional AO technology exists is poor, equipment area is big and the suspension filler that traditional biofilm reactor exists flows chaotic, easily piles up the scheduling problem.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the integrated AO biofilm reactor comprises a reactor main body and a central pipe, wherein the reactor main body is of a cylinder structure and is provided with three cavity channels which are sequentially nested from inside to outside, wherein the cavity channel positioned at the outermost layer is divided into an anoxic tank and an external cavity channel of an aerobic tank by a retaining wall, the cavity channel positioned at the middle layer is used as the internal cavity channel of the aerobic tank, and the cavity channel positioned at the innermost layer is used as a sedimentation tank;
the starting end of the anoxic pond is provided with a wastewater inlet pipe; the tail end of the external cavity channel of the aerobic tank is arranged corresponding to the starting end of the internal cavity channel of the aerobic tank, and a water through hole communicated with the two cavity channels is arranged below the wall surface between the two cavity channels; the tail end of the inner cavity channel of the aerobic tank is provided with an aerobic tank effluent weir, the aerobic tank effluent weir is connected with one end of a sedimentation tank water inlet pipe, and the other end of the sedimentation tank water inlet pipe is connected with the top of the central pipe; the central pipe is inserted in the center of the sedimentation tank, the bottom of the central pipe is spaced from the bottom of the sedimentation tank by a certain distance, and an umbrella-shaped baffle plate is correspondingly arranged below the central pipe; the top of the sedimentation tank is provided with a sedimentation tank effluent weir, and the purified water outlet pipe is communicated with the sedimentation tank effluent weir;
fixed biological fillers are arranged in the anoxic tank, and suspended fillers are arranged in the external cavity channel of the aerobic tank and the internal cavity channel of the aerobic tank.
Furthermore, aeration pipelines which can enable the suspended filler to circularly flow are arranged on the inner side walls of the outer cavity channel of the aerobic tank and the inner cavity channel of the aerobic tank along the length direction of the side walls.
Furthermore, the top of the outer side wall of the cavity of the external cavity channel of the aerobic tank and the top of the outer side wall of the cavity of the internal cavity channel of the aerobic tank are both provided with an upper guide plate; lower guide plates are correspondingly arranged on two sides of the bottom of the cavity of the aerobic tank outer cavity channel and the aerobic tank inner cavity channel.
Further, the included angle between the upper guide plate and the outer side wall of the cavity channel of the outer cavity channel of the aerobic pool/the outer side wall of the cavity channel of the inner cavity channel of the aerobic pool is 30-60 degrees, and the included angle between the lower guide plate and the bottom plate surface of the cavity channel of the outer cavity channel of the aerobic pool/the inner cavity channel of the aerobic pool is 45-60 degrees.
Further, the reactor main body is of a three-layer concentric cylinder structure.
Further, the fixed biological filler is a waterweed type biological filler or a strip-shaped biological filler.
Further, a mud bucket and a sludge return pipe are arranged at the bottom of the sedimentation tank, and the other end of the sludge return pipe is connected with the middle part of the anoxic tank.
Furthermore, a mixed liquid return channel communicated with the anoxic tank is arranged on the retaining wall at the tail end of the outer channel of the aerobic tank.
Furthermore, the volume ratio of the external cavity channel of the aerobic tank to the anoxic tank is 2-5: 1.
The beneficial effects of the utility model reside in that:
the reactor provides a carrier for the growth and propagation of microorganisms by adding the fixed filler in the anoxic tank and the suspended filler in the aerobic tank, and an activated sludge process and a biofilm process are combined to form an activated sludge-biofilm composite system, so that the impact load resistance of the system is improved, and the removal capacity of the system on pollutants in wastewater is improved. Through setting up good oxygen pond, outer chamber way for waste water can follow the pool wall annular in good oxygen pond and flow, has longer flow path, can get rid of the organic matter in a large number at good oxygen pond top, has reduced organic matter concentration, thereby forms the low organic matter environment of high dissolved oxygen at good oxygen pond end, does benefit to going on of nitration, thereby makes good oxygen pond have higher organic matter removal ability and denitrogenation ability simultaneously. Meanwhile, the guide plates arranged on the outer side wall and the bottom of the inner cavity and the outer cavity of the aerobic tank can enable the suspended filler to circularly flow under the action of the aeration pipeline, so that not only is the filler prevented from being accumulated, but also the contact effect of the filler and the wastewater is improved, and the removal capacity of the reactor to pollutants is enhanced. Through reasonable layout, the reactor has smaller floor area on the premise of perfecting the anoxic-aerobic function.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a top view of an integrated AO biofilm reactor;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
Reference numerals:
the device comprises a waste water inlet pipe-1, an anoxic tank-2, an aerobic tank outer cavity channel-3, an aerobic tank inner cavity channel-4, an aerobic tank effluent weir-5, a sedimentation tank inlet pipe-6, a central pipe-7, an umbrella-shaped baffle-8, a sedimentation tank-9, a sedimentation tank effluent weir-10, a purified water outlet pipe-11, a sludge return pipe-12, an upper guide plate-13, a lower guide plate-14, an aeration pipeline-15, a suspended filler-16, a fixed biological filler-17, a sludge hopper-18, a water through hole-19 and a retaining wall-20.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 3, an integrated AO biofilm reactor is shown, which comprises a reactor main body and a central tube 7, wherein the reactor main body is of a cylindrical structure and is provided with three cavity channels which are sequentially nested from inside to outside, wherein the cavity channel positioned at the outermost layer is divided into two parts, namely an anoxic tank 2 and an external cavity channel 3 of an aerobic tank, by a retaining wall 20, the cavity channel positioned at the middle layer is used as an internal cavity channel 4 of the aerobic tank, and the cavity channel positioned at the innermost layer is used as a sedimentation tank 9. The three-layer cavity channel of the reactor main body is formed by sequentially nesting three-layer cylinder structures from inside to outside, and wastewater can circularly flow in the reactor main body along a certain direction through the inner, middle and outer three-layer cavity channels, so that not only can the filler be prevented from being accumulated, but also the contact degree of the filler and the wastewater can be increased, and the wastewater treatment effect is improved.
Specifically, a wastewater inlet pipe 1 is arranged at the starting end of the anoxic tank 2; the tail end of the aerobic tank outer cavity channel 3 is arranged corresponding to the starting end of the aerobic tank inner cavity channel 4, and a water through hole 19 communicated with the two cavity channels is arranged below the wall surface between the two cavity channels; the tail end of the inner cavity channel 4 of the aerobic tank is provided with an aerobic tank effluent weir 5, the aerobic tank effluent weir 5 is connected with one end of a sedimentation tank water inlet pipe 6, and the other end of the sedimentation tank water inlet pipe 6 is connected with the top of a central pipe 7; the central pipe 7 is inserted in the center of the sedimentation tank 9, the bottom of the central pipe is at a certain distance from the bottom of the sedimentation tank 9, and an umbrella-shaped baffle 8 is correspondingly arranged below the central pipe 7; a sedimentation tank effluent weir 10 is arranged at the top of the sedimentation tank 9, and a purified water outlet pipe 11 is communicated with the sedimentation tank effluent weir 10; the oxygen-poor tank 2 is internally provided with fixed biological fillers 17, and the external cavity channel 3 of the aerobic tank and the internal cavity channel 4 of the aerobic tank are both provided with suspended fillers 16.
In the scheme, a wastewater inlet pipe 1 is connected with the starting end of an anoxic tank 2, the tail end of the anoxic tank 2 is connected with the starting end of an external cavity channel 3 of an aerobic tank, and the tail end of the external cavity channel 3 of the aerobic tank is connected with the starting end of an internal cavity channel 4 of the aerobic tank through a water through hole 19. Thus, the wastewater flows through the anoxic tank 2 and the external cavity channel 3 of the aerobic tank in turn in the outermost cavity channel and then enters the internal cavity channel 4 of the aerobic tank. The waste water circularly flows along the wall of the aerobic tank between the inner cavity and the outer cavity, thereby prolonging the flow path of the waste water. The process can remove a large amount of organic matters at the initial end of the aerobic tank, so that the concentration of the organic matters is reduced, and the tail end of the aerobic tank can form a high dissolved oxygen low organic matter environment, so that the nitrification is facilitated, and the aerobic tank has high organic matter removal capacity and denitrification capacity.
Because the inner cavity channel 4 of the aerobic tank is connected with the central pipe 7 through the aerobic tank effluent weir 5 at the top and the sedimentation tank inlet pipe 6, the water treated by the suspended filler flows into the sedimentation tank 9 for sedimentation, the settled clean water flows out from the outlet pipe at the top of the sedimentation tank 9, and the process realizes the up-and-down flow of the wastewater in the reactor main body.
As a further improvement of the proposal, aeration pipelines 15 which can lead the suspended filler 16 to circularly flow are arranged on the inner side walls of the outer cavity channel 3 of the aerobic tank and the inner cavity channel 4 of the aerobic tank along the length direction of the side walls. Meanwhile, the top of the outer side wall of the cavity of the external cavity channel 3 of the aerobic tank and the top of the outer side wall of the cavity of the internal cavity channel 4 of the aerobic tank are both provided with an upper guide plate 13; lower guide plates 14 are correspondingly arranged on two sides of the bottom of the outer cavity channel 3 of the aerobic tank and the inner cavity channel 4 of the aerobic tank. The aeration pipeline 15 has an aeration effect, can make the suspended filler 16 circularly flow under the cooperation of the upper guide plate 13 (arranged in the aerobic tank and the outer cavity channel outer side wall) and the lower guide plate 14 (arranged at the bottom), and avoids the accumulation of the suspended filler 16, thereby improving the contact effect of the suspended filler 16 and the wastewater and strengthening the removal capability of the reactor to pollutants.
Preferably, the included angle beta between the upper guide plate 13 and the outer wall of the cavity of the outer cavity channel 3 of the aerobic pool is 30-60 degrees, the included angle beta between the upper guide plate 13 and the outer wall of the cavity of the inner cavity channel 4 of the aerobic pool is 30-60 degrees, the included angle alpha between the lower guide plate 14 and the bottom plate surface of the cavity of the outer cavity channel 3 of the aerobic pool is 45-60 degrees, and the included angle alpha between the lower guide plate 14 and the bottom plate surface of the cavity of the inner cavity channel 4 of the aerobic pool is 45-60 degrees.
Preferably, the reactor main body is of a three-layer concentric cylinder structure, and the structure can effectively avoid packing accumulation. The sedimentation tank is a vertical sedimentation tank and is positioned in the innermost cavity channel of the concentric cylinder.
In the scheme, the volume ratio of the external cavity of the aerobic pool to the anoxic pool is 2-5: 1. The fixed biological filler can be a waterweed type biological filler or a strip-shaped biological filler. The bottom of the sedimentation tank 9 is provided with a mud bucket 18 and a sludge return pipe 12, and the other end of the sludge return pipe 12 is connected with the middle part of the anoxic tank 2. A mixed liquid return channel communicated with the anoxic tank 2 is arranged on the retaining wall at the tail end of the external cavity 3 of the aerobic tank. Sludge can be deposited at the bottom of the tank under the action of a sludge hopper 18, then part of the sludge flows back to the anoxic tank 2 through a sludge return pipe 12, fixed fillers are added into the anoxic tank 2, suspended fillers are added into an aerobic tank and an external cavity channel, the fillers provide carriers for the growth and the propagation of microorganisms, and simultaneously, a combined activated sludge method enables the reactor to form a biomembrane-activated sludge combined anoxic process, thereby improving the impact load resistance and the treatment effect of the reactor.
Take a specific device as an example:
an integrated AO biofilm reactor comprises a reactor main body, a wastewater inlet pipe 1, a sludge return pipe 12 and a purified water outlet pipe 11, wherein the reactor main body is of a three-layer concentric cylinder structure with an outer cavity channel, a middle cavity channel and an inner cavity channel and is correspondingly divided into an anoxic tank 2, an aerobic tank outer cavity channel 3, an aerobic tank inner cavity channel 4 and a sedimentation tank 9 by a retaining wall; the wastewater inlet pipe 1 is positioned at the initial end of the anoxic tank 2, the sludge return pipe 12 is positioned in the middle of the anoxic tank 2, and the purified water outlet pipe 11 is communicated with the sedimentation tank effluent weir 10.
The anoxic pond 2 is positioned in the cavity channel at the outermost side of the concentric cylinder, and is internally provided with fixed biological filler 17, preferably aquatic weed type biological filler. The aerobic pool outer cavity channel 3 is positioned on the outer side cavity channel of the concentric cylinder, is separated from the anoxic pool 2 by a retaining wall 20, and forms an outer side cavity channel of the reactor main body together with the anoxic pool 2; a mixed liquid return channel is arranged on a retaining wall at the tail end of the external cavity 3 of the aerobic tank and is connected with the anoxic tank 2; the external cavity 3 of the aerobic tank is internally provided with suspended fillers 16, the top of the external side wall of the cavity is provided with an upper guide plate 13, the bottom of the cavity is provided with a lower guide plate 14, and the internal side wall of the cavity is provided with an aeration pipeline 15 along the length direction of the side wall for enabling the suspended fillers 16 to circularly flow. Preferably, the volume ratio of the aerobic tank outer cavity 3 to the anoxic tank 2 is 2:1, the included angle beta between the upper guide plate 13 at the top of the outer side wall of the aerobic tank outer cavity and the outer side wall is 30 degrees, and the included angle alpha between the lower guide plate 14 at the bottom of the aerobic tank outer cavity and the tank bottom is 45 degrees. The aerobic pool inner cavity channel 4 is positioned in the concentric cylinder middle cavity channel and is communicated with the aerobic pool outer cavity channel 3 through a water through hole 19, the retaining wall at the tail end of the aerobic pool inner cavity channel 4 is provided with an aerobic pool water outlet weir 5, the cavity channel is internally provided with suspended fillers 16, the top of the outer side wall of the cavity channel is also provided with an upper guide plate 13, the bottom of the cavity channel is also provided with a lower guide plate 14, and the inner side wall of the cavity channel is provided with an aeration pipeline 15 which enables the suspended fillers 16 to circularly flow along the length direction of the side; preferably, the included angle beta between the upper guide plate 13 at the top of the outer side wall of the inner cavity channel of the aerobic tank and the outer side wall is 30 degrees, and the included angle alpha between the lower guide plate 14 at the bottom of the inner cavity channel of the aerobic tank and the bottom of the tank is 45 degrees. The sedimentation tank 9 is positioned in the innermost cavity channel of the concentric cylinder and consists of a sedimentation tank water inlet pipe 6, a central pipe 7, an umbrella-shaped baffle plate 8, a sedimentation tank water outlet weir 10, a mud bucket 18 and a sludge return pipe 12, the sedimentation tank water inlet pipe 6 is communicated with the aerobic tank water outlet weir 5, the central pipe 7 is communicated with the sedimentation tank water inlet pipe 6, the sedimentation tank water outlet weir 10 is positioned at the top of the sedimentation tank 9 and is communicated with a purified water outlet pipe 11, and the sludge return pipe 12 is positioned at the bottom of the sedimentation tank 9 and is connected with the anoxic tank 3.
The working principle of the reactor is as follows:
the device comprises a wastewater inlet pipe 1, an anoxic tank 2, an aerobic tank outer cavity channel 3, an aerobic tank inner cavity channel 4, an aerobic tank effluent weir 5, a sedimentation tank inlet pipe 6, a central pipe 7, an umbrella-shaped baffle 8, a sedimentation tank 9, a sedimentation tank effluent weir 10, a purified water outlet pipe 11, a sludge return pipe 12, an upper guide plate 13, a lower guide plate 14, an aeration pipeline 15, a suspended filler 16, a fixed biological filler 17, a sludge hopper 18, a water through hole 19 and a retaining wall 20.
Wastewater enters an anoxic tank 2 from a wastewater inlet pipe 1, denitrification is carried out under the combined action of activated sludge and a biological membrane growing on the surface of a fixed filler 17, then the wastewater enters an external cavity channel 3 of an aerobic tank from the anoxic tank 2, the wastewater circularly flows to a tail end baffle plate along the external cavity channel 3 of the aerobic tank, part of mixed liquor flows back to the anoxic tank 2, part of the wastewater enters an internal cavity channel 4 of the aerobic tank through a water through hole 19 arranged on the tank wall, the wastewater continuously flows to the tail end baffle plate (of the internal cavity channel 4 of the aerobic tank) along the internal cavity channel 4 of the aerobic tank, enters a sedimentation tank inlet pipe 6 through an aerobic tank outlet weir 5, then enters a central pipe 7 connected with the aerobic tank, water is discharged from the bottom of the central pipe 7, the wastewater flows upwards under the action of an umbrella-shaped baffle plate 8, enters a purified water outlet pipe 11 through a sedimentation tank outlet weir 10, is discharged from a reactor, and sludge is, and partially returned to the anoxic tank 2 through the sludge return pipe 12. The outside wall top and the bottom of the chamber of the aerobic tank outside chamber 3 and the aerobic tank inside chamber 4 are provided with guide plates, the inside wall is provided with an aeration pipeline 15 along the length direction, under the action of the aeration pipeline and the guide plates, the suspension filler 16 added in the tank can flow circularly, and the accumulation of the suspension filler at the bottom of the tank is avoided.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (9)
1. An integration AO biofilm reactor, includes reactor main part and center tube, its characterized in that: the reactor main body is of a cylinder structure and is provided with three cavity channels which are sequentially nested from inside to outside, wherein the cavity channel positioned at the outermost layer is divided into an anoxic tank and an external cavity channel of the aerobic tank by a retaining wall, the cavity channel positioned at the middle layer is used as the internal cavity channel of the aerobic tank, and the cavity channel positioned at the innermost layer is used as a sedimentation tank;
the starting end of the anoxic pond is provided with a wastewater inlet pipe; the tail end of the external cavity channel of the aerobic tank is arranged corresponding to the starting end of the internal cavity channel of the aerobic tank, and a water through hole communicated with the two cavity channels is arranged below the wall surface between the two cavity channels; the tail end of the inner cavity channel of the aerobic tank is provided with an aerobic tank effluent weir, the aerobic tank effluent weir is connected with one end of a sedimentation tank water inlet pipe, and the other end of the sedimentation tank water inlet pipe is connected with the top of the central pipe; the central pipe is inserted in the center of the sedimentation tank, the bottom of the central pipe is spaced from the bottom of the sedimentation tank by a certain distance, and an umbrella-shaped baffle plate is correspondingly arranged below the central pipe; the top of the sedimentation tank is provided with a sedimentation tank effluent weir, and the purified water outlet pipe is communicated with the sedimentation tank effluent weir;
fixed biological fillers are arranged in the anoxic tank, and suspended fillers are arranged in the external cavity channel of the aerobic tank and the internal cavity channel of the aerobic tank.
2. The integrated AO biofilm reactor of claim 1, wherein: aeration pipelines which can enable the suspended filler to circularly flow are arranged on the inner side walls of the outer cavity channel of the aerobic tank and the inner cavity channel of the aerobic tank along the length direction of the side walls.
3. The integrated AO biofilm reactor of claim 1, wherein: the top of the outer side wall of the cavity of the aerobic tank outer cavity channel and the aerobic tank inner cavity channel is provided with an upper guide plate; lower guide plates are correspondingly arranged on two sides of the bottom of the cavity of the aerobic tank outer cavity channel and the aerobic tank inner cavity channel.
4. The integrated AO biofilm reactor of claim 3, wherein: the included angle between the upper guide plate and the outer side wall of the cavity channel of the outer cavity channel of the aerobic tank/the outer side wall of the cavity channel of the inner cavity channel of the aerobic tank is 30-60 degrees, and the included angle between the lower guide plate and the bottom plate surface of the cavity channel of the outer cavity channel of the aerobic tank/the inner cavity channel of the aerobic tank is 45-60 degrees.
5. The integrated AO biofilm reactor of claim 1, wherein: the reactor main body is a three-layer concentric cylinder structure.
6. The integrated AO biofilm reactor of claim 1, wherein: the fixed biological filler is a waterweed type biological filler or a strip-shaped biological filler.
7. The integrated AO biofilm reactor of claim 1, wherein: the bottom of the sedimentation tank is provided with a mud bucket and a mud return pipe, and the other end of the mud return pipe is connected with the middle part of the anoxic tank.
8. The integrated AO biofilm reactor of claim 1, wherein: a mixed liquid backflow channel communicated with the anoxic tank is arranged on the retaining wall at the tail end of the outer cavity of the aerobic tank.
9. The integrated AO biofilm reactor of claim 1, wherein: the volume ratio of the external cavity channel of the aerobic tank to the anoxic tank is 2-5: 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217451A (en) * | 2020-02-25 | 2020-06-02 | 中冶赛迪技术研究中心有限公司 | Integrated AO biofilm reactor |
| CN113735202A (en) * | 2021-08-31 | 2021-12-03 | 安徽普氏生态环境工程有限公司 | Water separator device capable of accurately controlling water inlet proportion and adjusting method |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217451A (en) * | 2020-02-25 | 2020-06-02 | 中冶赛迪技术研究中心有限公司 | Integrated AO biofilm reactor |
| CN113735202A (en) * | 2021-08-31 | 2021-12-03 | 安徽普氏生态环境工程有限公司 | Water separator device capable of accurately controlling water inlet proportion and adjusting method |
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