CN218060675U - Siphon drainage device and aerobic granular sludge reactor - Google Patents
Siphon drainage device and aerobic granular sludge reactor Download PDFInfo
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- CN218060675U CN218060675U CN202222407619.7U CN202222407619U CN218060675U CN 218060675 U CN218060675 U CN 218060675U CN 202222407619 U CN202222407619 U CN 202222407619U CN 218060675 U CN218060675 U CN 218060675U
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- 239000010802 sludge Substances 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 173
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000005273 aeration Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application discloses siphon drainage device and aerobic granular sludge reactor. Siphon drainage device is applied to in the good oxygen granule sludge reactor, includes: the siphon drainage system comprises a siphon drainage tank, a siphon drainage cover, an exhaust pipe and an exhaust water seal device, wherein the siphon drainage tank and the siphon drainage cover are configured to be arranged inside a box body of the aerobic granular sludge reactor, and the exhaust water seal device is configured to be arranged outside the box body; the cover opening of the siphon drainage cover faces downwards, the siphon drainage groove is arranged in the siphon drainage cover, and the notch of the siphon drainage groove faces upwards; the exhaust water seal device is connected with the top surface of the siphon drainage cover through an exhaust pipe and is used for exhausting air in the siphon drainage cover; and the water outlet pipe system comprises a water outlet pipe, one end of the water outlet pipe is connected with the bottom end of the siphon drainage tank, and the other end of the water outlet pipe penetrates through the siphon drainage cover and is configured to be positioned outside the box body so as to siphon out liquid in the siphon drainage tank.
Description
Technical Field
The application relates to the technical field of water treatment, in particular to a siphon drainage device and an aerobic granular sludge reactor.
Background
The aerobic granular sludge treatment technology is a sewage biochemical tank treatment technology which is gradually mature in recent years, and has a great application prospect. The aerobic granular sludge is a granular and compact-structure microorganism aggregation form formed by the self-coagulation of microorganisms under the aerobic condition, and the aerobic granular sludge treatment technology has the advantages of good settling property, high treatment efficiency, low energy consumption, small occupied area and the like. From the technical point of view, compared with the traditional activated sludge, the problems of sludge expansion, water quality deterioration and the like of the aerobic granular sludge can not occur, and the aerobic granular sludge can be widely applied to organic matters which are difficult to degrade in industrial wastewater and has wide applicability.
The conventional aerobic granular sludge treatment technology usually adopts a sequencing batch aerobic granular sludge reactor, the reactor periodically operates according to the sequence of water inlet and outlet, standing, aeration and precipitation when sewage is treated, and water is synchronously drained in a plug-flow manner while water is fed, namely water inlet and outlet are synchronized, so that high-strength disturbance is avoided when water is fed, otherwise, the water is easy to penetrate through a water layer of the reactor, partial pollutants are not reacted and are discharged along with the discharged water, so that the standard exceeding is caused, the control difficulty is high, a complex automatic control system is required to be matched, and the water treatment effect cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The application provides a siphon drainage device and good oxygen granule sludge reactor, it can improve water treatment's efficiency.
In a first aspect, the present application provides a siphon drainage device for use in an aerobic granular sludge reactor, comprising:
the siphon drainage system comprises a siphon drainage tank, a siphon drainage cover, an exhaust pipe and an exhaust water seal device, wherein the siphon drainage tank and the siphon drainage cover are configured to be arranged inside a box body of the aerobic granular sludge reactor, and the exhaust water seal device is configured to be arranged outside the box body; the siphon drainage cover is characterized in that a cover opening of the siphon drainage cover faces downwards, the siphon drainage groove is formed in the siphon drainage cover, and a groove opening of the siphon drainage groove faces upwards; the exhaust water seal device is connected with the top surface of the siphon drainage cover through the exhaust pipe and is used for exhausting air in the siphon drainage cover;
and the water outlet pipe system comprises a water outlet pipe, one end of the water outlet pipe is connected with the bottom end of the siphon drainage tank, and the other end of the water outlet pipe penetrates through the siphon drainage cover and is configured to be positioned outside the box body so as to siphon out liquid in the siphon drainage tank.
In the scheme, the siphon drainage device is applied to the aerobic granular sludge reactor and discharges the upper clear water in the reactor by utilizing the siphon principle. The operation mode can be as follows: after the last period is finished (the last step of the last period is deposition), the aerobic granular sludge reactor starts to feed water (generally, water is introduced into the box from the lower part of the box of the reactor, please refer to a water inlet pipe 40 marked in fig. 2), low-intensity water inlet is adopted at the initial stage, the air pressure in the siphon drainage cover rises along with the rise of the liquid level, the air in the siphon drainage cover is discharged through an exhaust water seal device, when the liquid level rises to the siphon drainage groove, the water can be rapidly discharged through a drainage pipe along with the entry of clean water into the siphon drainage groove, a certain negative pressure can be generated in the siphon drainage cover, siphon is formed, and then the clean water at the upper part of the reactor is rapidly discharged due to siphon reasons, when the liquid level falls to the lower edge of the siphon drainage cover, the air enters the siphon drainage cover, siphon is broken, and the water outlet is finished. After the drainage is finished, the water inlet strength can be increased, at the moment, the reactor can be stirred or aerated according to the process requirements, so that the muddy water mixed liquor in the reactor is fully mixed and reacted with the inlet water, the water inlet is stopped when the liquid level rises to the set position of the liquid level meter (namely, the position slightly lower than the notch of the siphon drainage tank), and the water inlet stage is finished. The stirrer can be started in the water inlet process, and reactions of denitrification, anaerobic phosphorus release, carbon source extracellular adsorption and in-bag conversion mainly occur in the stage. And in the later water inlet process, an aeration system can be started, and reactions such as nitrification, denitrification, synchronous nitrification and denitrification, aerobic phosphorus absorption, denitrification phosphorus removal, organic matter degradation and the like are carried out at the stage.
Different from the prior art that water is synchronously fed and discharged, the scheme adopts a siphon mode to realize the water outlet of clear water, so that the water inlet and the water outlet can be asynchronous, the limitation of the rising flow rate of the water inlet is eliminated, the water inlet flow can be adjusted according to the requirement, and the risk of over-standard water outlet caused by over-high water inlet speed is reduced; meanwhile, the water inlet stage is still carried out after the water outlet is finished, stirring or aeration can be carried out, and the water treatment efficiency can be further improved.
According to some embodiments of the present application, the outlet pipe system further comprises a flow regulating valve, and the flow regulating valve is disposed on the outlet pipe.
According to some embodiments of the present application, the siphon drainage system further comprises an air separator provided at a cover opening of the siphon drainage cover for restricting air from entering the siphon drainage cover during an aeration period.
According to some embodiments of the present application, the exhaust gas water seal device comprises a tank body and an exhaust pipe;
the tank body is internally provided with liquid, the exhaust pipe is inserted into the tank body, and the pipe orifice of the exhaust pipe is positioned below the liquid level of the liquid;
the outlet duct is located the jar body and part are in the inside of the jar body, just the outlet duct is located mouth of pipe in the jar body is in the top of liquid level.
According to some embodiments of the application, the liquid level in the tank body is lower than a plane of a cover opening of the siphon drain cover.
According to some embodiments of the application, the tank bottom of siphon water drainage tank is central slope setting, just the outlet pipe set up in the center of tank bottom.
According to some embodiments of the present application, the siphon drainage channel and the siphon drainage cover are respectively annular;
the inner ring of the siphon drainage cover limits an installation area for installing a stirrer of the aerobic granular sludge reactor.
According to some embodiments of the present application, the siphon drainage apparatus comprises a plurality of siphon drainage systems and a plurality of outlet pipe systems;
the siphon drainage system is in one-to-one correspondence with the water outlet pipe system, and the water outlet pipe is communicated with the corresponding siphon drainage groove.
In a second aspect, the present application further provides an aerobic granular sludge reactor, which comprises the tank and the siphon drainage device.
According to some embodiments of the present application, the aerobic granular sludge reactor further comprises a liquid level meter for detecting a liquid level height in the tank.
The application provides technical scheme and has beneficial effect than prior art:
the running mode of completely synchronous water inlet and outlet is cancelled, the clear water is discharged by adopting a siphon mode, the water inlet and the water outlet can be asynchronous, and the water outlet flow is irrelevant to the flow, so that the limitation of the rising flow rate of the water inlet is eliminated, the water inlet flow can be adjusted according to the requirement, and the risk of over standard water outlet caused by overhigh water inlet speed is reduced; meanwhile, the siphon drainage device has good compatibility with the current sewage treatment and transformation project; meanwhile, the traditional operation step is broken through, stirring or aeration can be realized while high-strength water is fed, pollutants are mixed more uniformly, the mass transfer efficiency is high, the reaction is started in the water feeding stage, and the efficiency of water treatment can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a top view of a siphon drain in some embodiments of the present application;
fig. 2 isbase:Sub>A sectional view taken along the linebase:Sub>A-base:Sub>A in fig. 1.
Icon: 10-siphon drainage channel; 11-siphon drainage cover; 12-an exhaust pipe; 13-an exhaust water seal device; 130-a tank body; 131-an air outlet pipe; 14-an air separator; 20-water outlet pipe; 21-a flow regulating valve; 30-a box body; 40-water inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution in the present application will be described below with reference to the accompanying drawings.
At present, the mainstream operation mode of the aerobic granular sludge technology is still in a sequencing batch mode, namely four stages of water inlet, aeration, sedimentation and water outlet are completed in the same reactor. The inventor finds that the conventional sequencing batch aerobic granular sludge reactor has low treatment efficiency, and researches show that the main reason of low water treatment efficiency of the reactor is that the conventional method adopts synchronous water inlet and outlet, namely that clean water precipitated at the upper part of the reactor is pushed to be synchronously discharged through a water outlet tank while water is fed. Under the condition of synchronous water inlet and outlet, the following conditions are required to be met: 1. high-intensity disturbance needs to be avoided, so that the rising flow rate of inlet water needs to be controlled, the water inlet time is generally 1-2h, otherwise, the inlet water easily penetrates through a water layer of the reactor, partial pollutants are not reacted and are discharged along with outlet water, the standard exceeding is caused, and the water inlet time is long; 2. stirring cannot be carried out during water inlet, so that water layer disturbance is avoided, stirring cannot be carried out during water inlet, sewage and sludge cannot be fully mixed in the process, and the reaction efficiency is low in the water inlet stage; 3. aeration can not be carried out when water enters, and in order to avoid disturbance of a water layer, aeration can not be carried out when water enters, and aeration is carried out only in an aeration stage; all of the above three points result in slow water treatment efficiency.
In view of the above, the inventor designs a siphon drainage device, and after the device is adopted, the operation mode of completely and synchronously feeding and discharging water is cancelled in the aerobic granular sludge reactor, and clear water in the reactor is pumped out by utilizing the siphon principle, so that the problem that the inflow water easily penetrates through the water layer of the reactor to cause partial pollutants to be unreacted and discharged along with the outflow water to cause overproof does not exist, the inflow time can be shortened, and the stirring and aeration can be carried out while the inflow water is carried out.
Some embodiments of the present application providebase:Sub>A siphon drainage apparatus, please refer to fig. 1 and 2, fig. 1 isbase:Sub>A top view of the siphon drainage apparatus in some embodiments of the present application, and fig. 2 isbase:Sub>A sectional view alongbase:Sub>A-base:Sub>A in fig. 1.
The siphon drainage device is applied to an aerobic granular sludge reactor, and clear water in a box body of the reactor is pumped out by adopting a siphon principle.
The siphon drainage device comprises a siphon drainage system and a water outlet pipe system.
The siphon drainage system comprises a siphon drainage tank 10, a siphon drainage cover 11, an exhaust pipe 12 and an exhaust water seal device 13, wherein the siphon drainage tank 10 and the siphon drainage cover 11 are configured to be arranged inside a box body 30 of the aerobic granular sludge reactor, and the exhaust water seal device 13 is configured to be arranged outside the box body 30. The cover opening of the siphon drainage cover 11 faces downwards, the siphon drainage groove 10 is arranged in the siphon drainage cover 11, and the notch of the siphon drainage groove 10 faces upwards; the exhaust water seal device 13 is connected to the top surface of the siphon drainage cover 11 through the exhaust pipe 12, and is used for exhausting the air in the siphon drainage cover 11.
The outlet pipe system includes an outlet pipe 20, one end of the outlet pipe 20 is connected to the bottom end of the siphon drain tank 10, and the other end of the outlet pipe 20 passes through the siphon drain cover 11 and is configured to be located outside the tank body 30 to siphon out the liquid in the siphon drain tank 10.
Referring to fig. 2, fig. 2 labels the drain level Aa and the operating level. The plane of the cover opening of the siphon drainage cover 11 is flush with the drainage liquid level.
The tank 30 is a reaction vessel for water treatment.
In the scheme, the siphon drainage device is applied to the aerobic granular sludge reactor and discharges the upper clear water in the reactor by utilizing the siphon principle. The operation mode can be as follows: after the last period (last period is last step is deposition), start to intake water (generally, the box 30 lower part of the reactor leads to water to the box 30 inside), low-intensity water intake is adopted at the initial stage, along with the liquid level rising, the air pressure in the siphon drainage cover 11 rises, the air in the siphon drainage cover 11 is discharged through the exhaust water seal device 13, when the liquid level rises to the siphon drainage groove 10, along with the clear water entering the siphon drainage groove 10, the effluent can be discharged through the drainage pipe rapidly, certain negative pressure can be produced in the siphon drainage cover 11, siphon is formed, and then because of siphon reasons, the clear water at the upper part of the reactor is discharged rapidly, when the liquid level falls to the lower edge of the siphon drainage cover 11, the air enters the siphon drainage cover 11, siphon is broken, and the effluent is finished. After the drainage is finished, the water inlet strength can be increased, at this time, the reactor can be stirred or aerated according to the process requirements, so that the muddy water mixed liquor in the reactor is fully mixed and reacted with the inlet water, the water inlet is stopped when the liquid level rises to the set position of the liquid level meter (namely, the slightly lower position of the notch of the siphon drainage tank 10, namely, the operation liquid level marked in fig. 2), and the water inlet stage is finished. The stirrer can be started in the water inlet process, and reactions of denitrification, anaerobic phosphorus release, carbon source extracellular adsorption and in-bag conversion mainly occur in the stage. And in the later water inlet process, an aeration system can be started, and reactions such as nitrification, denitrification, synchronous nitrification and denitrification, aerobic phosphorus absorption, denitrification phosphorus removal, organic matter degradation and the like are carried out in the stage.
According to some embodiments of the present application, referring to fig. 2, the outlet pipe system further comprises a flow regulating valve 21, the flow regulating valve 21 being provided at the outlet pipe 20.
In the above scheme, the water outlet speed can be adjusted by arranging the flow control valve 21, and the water outlet time is further controlled. For example, by controlling the opening degree and the opening time of the flow control valve 21, the effluent time of the upper clear water in the reactor can be controlled to be 10min to 30min.
According to some embodiments of the present application, as shown in fig. 2, the siphon drainage system further includes an air separator 14, and the air separator 14 is provided at the opening of the siphon drainage cover 11 for restricting the air from entering the siphon drainage cover 11 during the aeration period.
In the above solution, the air separator 14 is a well-known component to those skilled in the art, and in some embodiments, the air separator 14 may be a prism having a maximum width slightly wider than the width of the siphon drain cover 11, and is located below the siphon drain cover 11, and a portion of the air separator 14 extends into the siphon drain cover 11. A certain gap is left between the air separator 14 and the siphon drainage groove 10, and the purpose of the air separator 14 is to intercept the air in the aeration period from entering the siphon drainage cover 11.
According to some embodiments of the present application, as shown in fig. 2, the exhaust gas water seal device 13 includes a tank 130 and an outlet pipe 131. Liquid (such as water) is arranged in the tank body 130, the exhaust pipe 12 is inserted into the tank body 130, and the pipe orifice of the exhaust pipe 12 is positioned below the liquid level of the liquid. The air outlet pipe 131 is arranged in the tank 130 and is partially positioned in the tank 130, and the opening of the air outlet pipe 131 in the tank 130 is positioned above the liquid level.
In the above scheme, in some embodiments, the tank 130 includes a body and a cover, the cover blocks an opening of the body, the air outlet pipe 131 passes through the cover and is communicated with the inside of the body, and the exhaust pipe 12 also passes through the cover and is in contact with the liquid, so that the air outlet pipe 131 and the tank 130, and the exhaust pipe 12 and the tank 130 are fixed. In other embodiments, the exhaust gas seal 13 may not have the air outlet pipe 131, for example, the air exhausted from the exhaust pipe 12 is only liquid and then directly exhausted from the opening of the tank 130.
According to some embodiments of the present application, the liquid level within the tank 130 (the level of the water within the tank 130) is below the plane of the mouth of the siphon drain cover 11.
In the above-mentioned solution, the height position relationship between the tank 130 and the siphon drainage cover 11 is defined to prevent the liquid in the tank 130 from entering the siphon drainage cover 11 due to siphon.
According to some embodiments of the present application, the bottom of the siphon drainage tank 10 is disposed with a central inclination, and the outlet pipe 20 is disposed at the center of the bottom of the tank.
In the above scheme, the tank bottom of the siphon drainage tank 10 is set to be inclined at the center, so that the drainage efficiency of the siphon drainage tank 10 can be improved, and the risk that clear water is remained in the siphon drainage tank 10 is reduced. In some embodiments, the slope of the bottom of siphon drain 10 is anywhere between 1% and 5%.
According to some embodiments of the present application, referring to fig. 1 and 2, siphon drain tank 10 and siphon drain cover 11 are respectively annular. The inner ring of the siphon drain cover 11 defines a mounting area for mounting the agitator of the aerobic granular sludge reactor.
In the above scheme, the siphon drainage groove 10 and the siphon drainage cover 11 are respectively annular, so that clean water on the upper layer of the reactor can be effectively drained, and the water outlet efficiency is ensured. Meanwhile, the central area of the siphon drainage cover 11 is in a through hole shape due to the ring shape, and the area can be penetrated by a stirrer, so that the layout of the aerobic granular sludge reactor is reasonable.
In some embodiments, when the siphon drain cover 11 is ring-shaped, the air separator 14 is also ring-shaped, such as a ring-shaped triangular prism.
In other embodiments, the outer contours of the siphon drain tank 10 and the siphon drain cover 11 may also be in the shape of a straight line, a cylinder, a square, or other shapes.
According to other embodiments of the present application, the siphon drain comprises a plurality of siphon drain systems and a plurality of outlet pipe systems. The siphon drainage system is in one-to-one correspondence with the water outlet pipe system, and the water outlet pipe 20 is communicated with the corresponding siphon drainage groove 10.
According to some embodiments of the present application, there is also provided an aerobic granular sludge reactor comprising a tank 30 and a siphon drain as described above. The aerobic granular sludge reactor also comprises a liquid level meter for detecting the liquid level height in the box body 30. The liquid level in the tank 30 is measured by a liquid level meter to determine whether water inflow is completed. If the liquid level rises to the set position of the liquid level meter (namely, a position slightly lower than the notch of the siphon drainage tank 10), the water inlet stage is stopped.
It should be noted that in some embodiments, the siphon drain tank 10, the siphon drain cover 11 and the air separator 14 may be fixed in the box 30 by steel frames or other fixing frames.
The aerobic granular sludge reactor adopting the siphon drainage device has the following characteristics:
1. the operation mode of completely synchronous water inlet and outlet is cancelled, a siphon drainage device is adopted for water outlet, the water outlet flow is irrelevant to the flow, the water outlet flow can be adjusted according to a water outlet adjusting valve and can be far larger than the water inlet flow generally, the drainage time is shortened, and the problem that the water inlet penetrates through a reactor and the water inlet and the supernatant are mixed to influence the water quality of the outlet water due to the fact that the water inlet and the supernatant are synchronously fed and discharged for a long time is avoided.
2. The limitation of the rising flow rate of the inlet water is eliminated, and the inlet water flow can be adjusted according to the requirement;
3. the reactor is not limited by height, and has good compatibility with the current sewage treatment and transformation project (in the prior art, in order to solve the problem that the inflow water easily penetrates through the water layer of the reactor, so that partial pollutants are not reacted and are discharged along with the effluent water, so that the standard exceeding is caused, the effective water depth of the reactor is generally set to be deeper, so that the technology cannot be completely suitable for the transformation of the biochemical pool of the current sewage treatment plant);
4. the traditional operation step is broken through, the stirring or aeration can be realized while high-strength water inflow is realized, the pollutants are mixed more uniformly, the mass transfer efficiency is high, and the reaction is started in the water inflow stage. The duration of the non-reaction step sequence can be reduced to the greatest extent, and the effective utilization rate of the tank capacity is improved;
5. the requirement on the water distribution uniformity of inlet water is reduced, and the energy consumption can be saved by adopting small-resistance water distribution;
meanwhile, the inventor also finds that after the drainage of the existing reactor is finished, in order to prevent part of muddy water mixed liquor from being brought out during aeration, the existing reactor generally needs to carry out rapid precipitation with the height of 10-20cm, and rapid precipitation equipment needs to be configured, so that the equipment configuration of the system is increased.
And adopt siphon drainage device, so can not take part muddy water mixed liquid problem out when having not aeration, therefore still has following characteristics for this reason:
6. and a quick precipitation system is not required to be arranged, and the equipment configuration is simplified.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A siphon drainage device is applied to an aerobic granular sludge reactor and is characterized by comprising:
the siphon drainage system comprises a siphon drainage tank, a siphon drainage cover, an exhaust pipe and an exhaust water seal device, wherein the siphon drainage tank and the siphon drainage cover are configured to be arranged inside a box body of the aerobic granular sludge reactor, and the exhaust water seal device is configured to be arranged outside the box body; the siphon drainage cover is characterized in that a cover opening of the siphon drainage cover faces downwards, the siphon drainage groove is formed in the siphon drainage cover, and a groove opening of the siphon drainage groove faces upwards; the exhaust water seal device is connected with the top surface of the siphon drainage cover through the exhaust pipe and is used for exhausting air in the siphon drainage cover;
and the water outlet pipe system comprises a water outlet pipe, one end of the water outlet pipe is connected with the bottom end of the siphon drainage tank, and the other end of the water outlet pipe penetrates through the siphon drainage cover and is configured to be positioned outside the box body so as to siphon out liquid in the siphon drainage tank.
2. The siphon drain of claim 1,
the water outlet pipe system further comprises a flow regulating valve, and the flow regulating valve is arranged on the water outlet pipe.
3. The siphon drain of claim 1,
the siphon drainage system further comprises an air separator, wherein the air separator is arranged at the cover opening of the siphon drainage cover and used for limiting air in an aeration stage from entering the siphon drainage cover.
4. The siphon drain of claim 1,
the exhaust water seal device comprises a tank body and an air outlet pipe;
the tank body is internally provided with liquid, the exhaust pipe is inserted into the tank body, and the pipe orifice of the exhaust pipe is positioned below the liquid level of the liquid;
the outlet duct is located the jar body and part are in the inside of the jar body, just the outlet duct is located jar internal mouth of pipe is in the top of liquid level.
5. A syphon drainage means as claimed in claim 4,
the liquid level in the tank body is lower than the plane of the cover opening of the siphon drainage cover.
6. The siphon drain of claim 1,
the tank bottom of siphon water drainage tank is central slope setting, just the outlet pipe set up in the center of tank bottom.
7. A siphon drainage arrangement according to any of claims 1 to 6,
the siphon drainage tank and the siphon drainage cover are respectively annular;
the inner ring of the siphon drainage cover limits an installation area for installing a stirrer of the aerobic granular sludge reactor.
8. The siphon drainage apparatus of any one of claims 1 to 6,
the siphon drainage device comprises a plurality of siphon drainage systems and a plurality of water outlet pipe systems;
the siphon drainage systems are in one-to-one correspondence with the water outlet pipe systems, and the water outlet pipes are communicated with the corresponding siphon drainage grooves.
9. An aerobic granular sludge reactor is characterized in that,
the aerobic granular sludge reactor comprising the tank and the siphon drainage apparatus according to any one of claims 1 to 8.
10. The aerobic granular sludge reactor according to claim 9, wherein,
the aerobic granular sludge reactor also comprises a liquid level meter for detecting the liquid level height in the box body.
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| CN202222407619.7U CN218060675U (en) | 2022-09-07 | 2022-09-07 | Siphon drainage device and aerobic granular sludge reactor |
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