CN214611751U - Reaction unit for aerobic biological treatment - Google Patents
Reaction unit for aerobic biological treatment Download PDFInfo
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- CN214611751U CN214611751U CN202120616669.9U CN202120616669U CN214611751U CN 214611751 U CN214611751 U CN 214611751U CN 202120616669 U CN202120616669 U CN 202120616669U CN 214611751 U CN214611751 U CN 214611751U
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- 238000010521 absorption reaction Methods 0.000 claims description 23
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
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- 238000005273 aeration Methods 0.000 description 4
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241001148470 aerobic bacillus Species 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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model provides a reaction unit for aerobic biological treatment, include: the device comprises a waste water storage tank and a multi-stage aerobic biological treatment tank which are stacked and connected in series, wherein the side wall of the aerobic biological treatment tank is communicated with the waste water storage tank so as to convey waste water into the aerobic biological treatment tank; each aerobic biological treatment tank is internally provided with a micro-interface bubble generator for dispersing broken air, and the micro-interface bubble generator is connected with an air compressor for supplying compressed air; and the wastewater is discharged after reaching the standard after being subjected to aerobic treatment under the action of air in the aerobic biological treatment tank. The utility model discloses a reaction unit it changes traditional plane series reaction pond into three-dimensional reaction tank that piles up, make full use of waste water gravity energy saving itself and very big saving area. And micron-sized bubbles are generated by adopting a micro-interface enhanced reaction technology so as to improve the oxygen concentration in the wastewater and improve the oxygen utilization rate. The sewage oxidation treatment efficiency is greatly improved, and the construction cost and the operation cost are greatly reduced.
Description
Technical Field
The utility model relates to a waste water treatment field particularly, relates to an aerobe's reaction unit.
Background
In the sewage treatment process, aerobic biological treatment refers to a treatment method in which aerobic microorganisms degrade organic matters under the condition of sufficient oxygen supply or gas supply, so that the organic matters are stabilized and harmless. Generally, in order to improve the treatment efficiency, the conventional aerobic biological sewage treatment system is often formed by serially connecting a plurality of treatment tanks, each treatment tank is distributed in a scattered manner, and the volume of an aeration tank is large, so that the whole sewage treatment system has a large floor area, the construction cost is increased, and once the system is constructed, the position cannot be adjusted. At present, the conventional aerobic biological treatment tank is of a common flat-bottom structure, an aerator is arranged at the bottom of the tank, gas is conveyed to the bottom of the tank through a blower and is released through a microporous aerator, so that the dissolved oxygen level in wastewater is improved, but the method generates overlarge bubbles, is not uniform in mixing, has low oxygen mass transfer effect, reduces the oxygen utilization rate, has large contradiction between oxygen demand and oxygen supply, reduces the biological propagation and reaction rate, and has low sewage treatment oxidation treatment efficiency. Aerators placed at the bottom of the tank make it necessary to overcome a great resistance to aeration, which greatly increases the energy consumption. In addition, in the conventional aeration mode, because the aerator is arranged at the bottom of the biological pond, the work of the biological pond must be stopped during maintenance, and liquid in the biological pond is emptied, so that the normal operation is influenced.
How to study an integrated biological treatment reaction device, make its simple structure, construction cost is low, easy maintenance, the treatment effeciency is high, and the running cost is low, this is the technical problem who awaits solution at present.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reaction unit of aerobic biological treatment, it changes traditional plane series reaction pond into three-dimensional reaction tank that piles up, make full use of waste water gravity energy saving and very big area of having saved. And micron-sized bubbles are generated by adopting a micro-interface enhanced reaction technology so as to improve the oxygen concentration in the wastewater and improve the oxygen utilization rate. The sewage oxidation treatment efficiency is greatly improved, and the construction cost and the operation cost are greatly reduced.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
the utility model provides a reaction unit for aerobic biological treatment, include: the device comprises a waste water storage tank and a multi-stage aerobic biological treatment tank which are stacked and connected in series, wherein the side wall of the aerobic biological treatment tank is communicated with the waste water storage tank so as to convey waste water into the aerobic biological treatment tank;
each aerobic biological treatment tank is internally provided with a micro-interface bubble generator for dispersing broken air, and the micro-interface bubble generator is connected with an air compressor for supplying compressed air;
and the wastewater is discharged after reaching the standard after being subjected to aerobic treatment under the action of air in the aerobic biological treatment tank.
The aerobic biological treatment pond among the prior art oxygen utilization ratio is low, the energy consumption is high, and the treatment effect is not good, can not carry out effectual processing to the organic waste who contains in the waste water, the utility model provides a novel aerobic biological treatment's reaction unit through piling up the reaction tank that sets up and combining the technique of reinforceing of micro-interface, utilizes micro-interface generator to disperse breakage to the air to improve the oxygen concentration in the waste water, improve oxygen utilization ratio, reinforce the biological aerobic treatment effect of waste water.
The device comprises at least one stage of aerobic biological treatment tank, wherein each stage of aerobic biological treatment tank is separated by a partition plate through a three-dimensional stacking method, a micro-interface bubble generator is arranged in each aerobic biological treatment tank, the micro-interface bubble generator supplies air to a micro-interface through an air compressor, and the air dispersed and crushed by the micro-interface forms fine micro-bubbles, so that the biological aerobic treatment effect is enhanced.
Preferably, as a further implementable scheme, the aerobic biological treatment tanks are three stages and are sequentially connected in series from top to bottom, and a micro-interface bubble generator is arranged in each aerobic biological treatment tank.
Preferably, as a further implementable solution, the micro-interface bubble generator is submerged below the liquid level of the waste liquid of the aerobic biological treatment tank. The advantage of micro-interface bubble generator submergence below the liquid level lies in that the bubble after the breakage can enter into the waste water at once and carry out abundant contact with waste water, improves the aerobic treatment effect, consequently the utility model discloses the optimal scheme is with every micro-interface bubble generator equal submergence under the liquid level of waste water.
Preferably, as a further practicable scheme, a wastewater circulating pump is arranged on the side surface of each aerobic biological treatment tank and is used for circulating wastewater at the bottom of the tank back to enter from the top of the micro-interface bubble generator.
Every micro-interface bubble generator utilizes the waste water that waste water circulating pump circulation comes as the power of dispersion broken air, through beating the circulation of waste water circulating pump like this, utilize this partial waste water as the broken motive power of drive micro-interface bubble generator dispersion on the one hand, lie in the bottom waste water of aerobic tank on the other hand and return the top again and strengthen its aerobic treatment effect, it is not simple that this micro-interface bubble generator disperses the breakage with the air, still through inhaling waste water to the continuous backmixing improvement waste water treatment effect in the micro-interface bubble generator.
It will be appreciated by those skilled in the art that the micro-interface bubble generator of the present invention has been embodied in the prior patents of the present invention, such as patent applications CN201610641119.6, CN201610641251.7, CN201710766435.0, CN106187660, CN105903425A, CN109437390A, CN205833127U and CN 207581700U. The detailed structure and operation principle of the micro bubble generator (i.e. micro interface bubble generator) are described in detail in the prior patent CN201610641119.6, which describes that "the micro bubble generator comprises a body and a secondary crushing member, wherein the body is provided with a cavity, the body is provided with an inlet communicated with the cavity, the opposite first end and second end of the cavity are both open, and the cross-sectional area of the cavity decreases from the middle of the cavity to the first end and second end of the cavity; the secondary crushing member is disposed at least one of the first end and the second end of the cavity, a portion of the secondary crushing member is disposed within the cavity, and an annular passage is formed between the secondary crushing member and the through holes open at both ends of the cavity. The micron bubble generator also comprises an air inlet pipe and a liquid inlet pipe. "the specific working principle of the structure disclosed in the application document is as follows: liquid enters the micro-bubble generator tangentially through the liquid inlet pipe, and gas is rotated at a super high speed and cut to break gas bubbles into micro-bubbles at a micron level, so that the mass transfer area between a liquid phase and a gas phase is increased, and the micro-bubble generator in the patent belongs to a pneumatic micro-interface generator.
In addition, the first patent 201610641251.7 describes that the primary bubble breaker has a circulation liquid inlet, a circulation gas inlet and a gas-liquid mixture outlet, and the secondary bubble breaker communicates the feed inlet with the gas-liquid mixture outlet, which indicates that the bubble breakers all need to be mixed with gas and liquid, and in addition, as can be seen from the following drawings, the primary bubble breaker mainly uses the circulation liquid as power, so that the primary bubble breaker belongs to a hydraulic micro-interface generator, and the secondary bubble breaker simultaneously introduces the gas-liquid mixture into an elliptical rotating ball for rotation, thereby realizing bubble breaking in the rotating process, so that the secondary bubble breaker actually belongs to a gas-liquid linkage micro-interface generator. In fact, no matter be the hydraulic formula micro-interface generator, still gas-liquid linkage micro-interface generator all belongs to a concrete form of micro-interface generator, however the utility model discloses the micro-interface bubble generator who adopts is not restricted to above-mentioned several kinds of forms, and the concrete structure of the bubble breaker who records in the patent of the past is only the utility model discloses one of them form that micro-interface generator can adopt has.
Furthermore, the prior patent 201710766435.0 states that the principle of the bubble breaker is that high-speed jet flows are used to achieve mutual collision of gases, and also states that the bubble breaker can be used in a micro-interface strengthening reactor to verify the correlation between the bubble breaker and the micro-interface generator; moreover, in the prior patent CN106187660, there is a related description on the specific structure of the bubble breaker, see paragraphs [0031] to [0041] in the specification, and the accompanying drawings, which illustrate the specific working principle of the bubble breaker S-2 in detail, the top of the bubble breaker is a liquid phase inlet, and the side of the bubble breaker is a gas phase inlet, and the liquid phase coming from the top provides the entrainment power, so as to achieve the effect of breaking into ultra-fine bubbles, and in the accompanying drawings, the bubble breaker is also seen to be of a tapered structure, and the diameter of the upper part is larger than that of the lower part, and also for better providing the entrainment power for the liquid phase.
Because the initial stage of earlier patent application, the micro-interface bubble generator just developed, so named as micron bubble generator (CN201610641119.6), bubble breaker (201710766435.0) etc. in the early stage, along with continuous technological improvement, later stage renames as micro-interface bubble generator, now the utility model provides a micro-interface bubble generator is equivalent to micron bubble generator, bubble breaker etc. before, and only the name is different.
To sum up, the utility model discloses a micro-interface bubble generator belongs to prior art, and although some micro-interface bubble generator belong to pneumatic micro-interface generator type, some micro-interface generator belong to hydraulic micro-interface generator type, still belong to gas-liquid linkage micro-interface generator type, but the difference between the type mainly selects according to the difference of specific operating mode, is connected about micro-interface bubble generator and reactor and other equipment in addition, including connection structure, hookup location, and decide according to micro-interface generator's structure, this is not injectd. Although the structure of the micro-interface bubble generator per se belongs to the prior art, the specific setting position and the working mode of the micro-interface bubble generator combined in the aerobic treatment process of the wastewater of the utility model are both uniquely designed by combining the specific actual process.
Preferably, as a further implementable scheme, the system further comprises a water drop port communicated with each aerobic biological treatment tank, and the wastewater in each aerobic biological treatment tank enters the next stage aerobic biological treatment tank through the water drop port.
Preferably, as a further practicable scheme, the top of each aerobic biological treatment tank is provided with an exhaust gas outlet, and the exhaust gas outlet is connected with an absorption tower for treating the exhaust gas.
The top of the aerobic biological treatment tank is provided with a water drop port to be communicated with the next-stage biological treatment tank; in addition, the top of the first-stage biological treatment tank is provided with a water inlet, and the top of the last-stage biological treatment tank is provided with a water outlet.
Preferably, as a further implementable scheme, a liquid outlet is arranged on the absorption tower, the liquid outlet is communicated with the wastewater storage tank, and carbon dioxide and H in the waste gas2S、NH3And returning to the waste water storage tank from the liquid outlet after being absorbed.
Preferably, as a further practicable scheme, the top of the absorption tower is provided with a gas outlet for discharging the gas after absorption treatment to the atmosphere.
The absorption tower is used for absorbing carbon dioxide and H in the waste gas2S、NH3And the gas and the waste liquid absorbing the waste gas are returned to the original waste water storage tank of the process for waste water treatment, and the treated gas basically does not contain any waste and can be directly discharged into the atmosphere through the gas outlet. The absorption tower is also provided with a fresh absorption liquid inlet forAnd (4) supplementing fresh absorption liquid.
Preferably, as a further implementable scheme, the system further comprises a wastewater delivery pump, wherein one end of the wastewater delivery pump is connected with the wastewater storage tank through a pipeline, and the other end of the wastewater delivery pump is connected with the side wall of the aerobic biological treatment tank through a pipeline.
When the device is operated, sewage is conveyed to the first-stage aerobic biological treatment tank at the top through the wastewater conveying pump, the micro-interface bubble generator conveys the sewage at the bottom of the first-stage aerobic biological treatment tank to the micro-interface bubble generator through the wastewater circulating pump, and simultaneously conveys compressed air to the micro-interface bubble generator, so that micron-sized bubbles are continuously generated, the micron-sized bubbles can improve the mass transfer efficiency of oxygen in water, and meanwhile, the stirring effect is also played, and the distribution of the microbial concentration and the organic matter concentration in the whole reaction tank is uniform. When the wastewater in the first-stage aerobic biological treatment tank fully reacts and the liquid level height reaches the water drop opening, the wastewater begins to enter the second-stage aerobic biological treatment tank for further reaction. The second-stage aerobic biological treatment tank can adjust the types and the concentrations of microorganisms as required to meet the standard requirement of water quality, other operations are similar to those of the first-stage aerobic biological treatment tank, and the stage number of the biological tank can be set according to the treatment requirement. Finally, the wastewater enters the aerobic biological treatment tank of the last stage, and the wastewater reaching the standard is discharged through a water outlet of the last stage. The waste gas generated by each level of biological reaction is gathered at the top of the biological reaction tank and is finally conveyed to the absorption tower through a pipeline in a unified way, the air and most of carbon dioxide in the waste gas are discharged from the top of the tower, and the liquid discharged from the tower bottom contains hydrogen sulfide, ammonia gas, a small amount of carbon dioxide and the like, and then the liquid returns to the waste water storage tank again for reaction.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) the stereoscopic stacked multi-stage biological treatment tank greatly saves the occupied area; the biological treatment tank can be made of stainless steel, high-strength plastic and the like, and is corrosion-resistant and low in consumption.
2) The utility model discloses a reaction unit simple to operate is reliable, simple structure, and construction cost is low, and area is little, easy maintenance, and the treatment effeciency is high, and the running cost is low, and can carry and make up again to biological treatment ponds at different levels as required.
3) The liquid flows by self gravity, and the micro-interface bubble generator changes the form that the traditional aeration method needs to supply air from the bottom of the tank, thereby reducing the operation energy consumption required by the whole treatment device.
4) During the atmosphere, the polluted environment is directly discharged into to the waste gas in tradition processing pond, the utility model discloses a reaction unit can collect the waste gas that every level of biological treatment pond produced and adopt the absorption tower to absorb wherein to discharge again behind the harmful gas, environmental protection safety.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural view of a reaction apparatus for aerobic biological treatment according to an embodiment of the present invention.
Reference numerals:
1-a waste water storage tank; 2-a waste water delivery pump;
3, an air compressor; 4-micro-interface bubble generator;
5-aerobic biological treatment pool; 6-water drop;
7-an exhaust gas outlet; 8-an absorption tower;
9-a liquid outlet; 10-air outlet;
11-fresh absorption liquid inlet; 12-standard sewage outlet;
13-wastewater circulating pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically 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 invention can be understood in specific cases to those skilled in the art.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Referring to fig. 1, for the utility model discloses aerobic biological treatment's reaction unit, it mainly includes the waste water storage tank 1 that is used for storing the waste liquid that needs to handle to and pile up multistage aerobic biological treatment pond 5 of establishing ties, be provided with the micro-interface bubble generator 4 that is used for dispersing broken air in every aerobic biological treatment pond 5, micro-interface bubble generator 4 is connected with air compressor machine 3 in order to be used for supplying with compressed air. The entering air is dispersed and crushed by the micro-interface bubble generator 4, so that the oxygen concentration in the wastewater is improved, and the utilization rate of the oxygen is improved. The aerobic biological treatment tank 5 can be three-stage and is sequentially connected in series from top to bottom, and a micro-interface bubble generator 4 is arranged in each aerobic biological treatment tank 5.
When the reaction device operates, the waste liquid in the waste water storage tank 1 is conveyed into the first-stage aerobic biological treatment tank 5 by the waste liquid conveying pump 2 through a waste liquid inlet, after biological treatment, the waste liquid enters the second-stage aerobic biological treatment tank 5 through the water drop openings 6 communicated with the aerobic biological treatment tanks 5, after further reaction, the waste liquid enters the third-stage aerobic biological treatment tank 5, the first-stage aerobic biological treatment tank 5 is provided with a standard-reaching sewage outlet 12, and the waste water after the treatment reaches the standard is discharged from the first-stage aerobic biological treatment tank.
In order to improve the efficiency of the micro-interface bubble generator 4, the micro-interface bubble generator 4 is preferably immersed under the wastewater level of each aerobic biological treatment tank 5, and a wastewater circulating pump 13 is arranged on the side surface of each aerobic biological treatment tank 5, and the wastewater circulating pump 13 is used for circulating the wastewater at the bottom of the tank back to enter from the top of the micro-interface bubble generator 4 to be used as the power for dispersing and crushing and also play a role in stirring the treated wastewater.
In addition, waste gas generated by the reaction is collected at the top of each stage of aerobic biological treatment tank 5 and enters from the gas inlet of the absorption tower 8 through the waste gas outlet 7, fresh absorption liquid enters from the fresh absorption liquid inlet 11 and is sprayed, and a small amount of carbon dioxide and H in the waste gas2S、NH3The waste gas is absorbed and re-merged into the waste water conveying pump 2 through the liquid outlet 9 and is returned to the waste water storage tank 1 for further treatment, and the nitrogen, oxygen and other gases in the waste gas can be discharged into the atmosphere through the gas outlet 10 at the top of the absorption tower 8. Can understand thatIn this example, the number of stages of the biological treatment tank and the types of microorganisms in the biological treatment tanks are not limited, and the biological treatment tanks are only required to be configured according to the requirement of wastewater treatment.
In practical application, the wastewater of a certain chemical plant is stored in a wastewater storage tank 11, the water quality BOD of the original wastewater is 800, the COD of the original wastewater is 1500, and the wastewater is conveyed to a first-stage aerobic biological treatment tank 5 by a wastewater conveying pump 2, wherein aerobic bacteria are cultured in the first-stage aerobic biological treatment tank. The micro-interface bubble generator 4 is supplied with compressed air by the air compressor 3 through a pipeline, in addition, the waste liquid at the bottom of the first-stage pool is pumped by the waste water circulating pump 13 for liquid supply, finally bubbles with the bubble size of 400-1000 mu m are generated, and the DO value reaches 2 mg/L. After the wastewater stays in the first stage aerobic biological treatment tank 5 for a certain time, the BOD and COD values are respectively reduced to 400 and 500. Furthermore, the wastewater flows into the second-stage aerobic biological treatment tank 5 through a water drop opening 6 in the first-stage aerobic biological treatment tank 5, and a second aerobic strain is cultured in the second-stage aerobic biological treatment tank. The micro-interface bubble generator 4 is supplied with compressed air by the air compressor 3 through a pipeline, in addition, the waste liquid at the bottom of the second-stage pool is pumped by the waste water circulating pump 13 for liquid supply, finally bubbles with the bubble size of 400-1000 mu m are generated, and the DO value reaches 2 mg/L. After the wastewater stays in the secondary treatment tank for a certain time, the BOD and COD values are respectively reduced to 100 and 300. Further, the wastewater flows into the last stage aerobic biological treatment tank 5 through a water drop opening 6 in the second stage aerobic biological treatment tank 5, and the third aerobic bacterial strain is cultured in the stage treatment tank. The micro-interface bubble generator 4 is supplied with compressed air by the air compressor 3 through a pipeline, in addition, the waste liquid at the bottom of the second-stage pool is pumped by the waste water circulating pump 13 for liquid supply, finally bubbles with the bubble size of 400-1000 mu m are generated, and the DO value reaches 2 mg/L. After the waste water stays in the last stage treatment tank for a certain time, the BOD and COD values are respectively reduced to 40 and 150. The wastewater reaching the standard is discharged through a sewage outlet 12. The waste gas generated by the reaction is gathered at the top of the three-stage biological treatment tank, and enters from the air inlet of the absorption tower 8 after going out through the waste gas outlet 7, clear water is adopted as fresh absorption liquid to spray from the fresh absorption liquid inlet 11, and a small amount of carbon dioxide and H in the waste gas2S、NH3Etc. are absorbed and re-introduced into the waste water delivery pump via the liquid outlet 92, the waste gas is further treated, and the gases such as nitrogen and oxygen in the waste gas can be discharged into the atmosphere through the gas outlet 10.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A reaction device for aerobic biological treatment, comprising: the device comprises a waste water storage tank and a multi-stage aerobic biological treatment tank which are stacked and connected in series, wherein the side wall of the aerobic biological treatment tank is communicated with the waste water storage tank so as to convey waste water into the aerobic biological treatment tank;
each aerobic biological treatment tank is internally provided with a micro-interface bubble generator for dispersing broken air, and the micro-interface bubble generator is connected with an air compressor for supplying compressed air;
and the wastewater is discharged after reaching the standard after being subjected to aerobic treatment under the action of air in the aerobic biological treatment tank.
2. The reactor according to claim 1, wherein the aerobic biological treatment tanks are three-stage and are connected in series from top to bottom, and a micro-interface bubble generator is arranged in each aerobic biological treatment tank.
3. The reaction device of claim 2, further comprising a water drop port communicated with each aerobic biological treatment tank, wherein the wastewater in each aerobic biological treatment tank enters the next stage aerobic biological treatment tank through the water drop port.
4. The reactor apparatus as claimed in claim 3, wherein each aerobic biological treatment tank is provided with a wastewater circulating pump at the side thereof, and the wastewater circulating pump is used for circulating wastewater at the bottom of the tank back to enter from the top of the micro-interface bubble generator.
5. The reactor according to claim 1, wherein the top of each aerobic biological treatment tank is provided with an exhaust gas outlet, and the exhaust gas outlet is connected with an absorption tower for treating the exhaust gas.
6. The reaction device as claimed in claim 5, wherein the absorption tower is provided with a liquid outlet, the liquid outlet is communicated with the waste water storage tank, and carbon dioxide and H in the waste gas are contained in the waste gas2S、NH3And returning to the waste water storage tank from the liquid outlet after being absorbed.
7. The reaction device according to claim 5, wherein the top of the absorption tower is provided with a gas outlet for discharging the absorption-treated gas to the atmosphere.
8. The reactor apparatus as claimed in any one of claims 1 to 7, further comprising a wastewater transfer pump, one end of which is connected to the wastewater storage tank through a pipe and the other end of which is connected to the side wall of the aerobic biological treatment tank through a pipe.
9. The reactor apparatus according to any one of claims 1 to 7, wherein the micro-interface bubble generator is submerged below the level of the effluent in the aerobic biological treatment tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120616669.9U CN214611751U (en) | 2021-03-26 | 2021-03-26 | Reaction unit for aerobic biological treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120616669.9U CN214611751U (en) | 2021-03-26 | 2021-03-26 | Reaction unit for aerobic biological treatment |
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