CN216038824U - Aerobic treatment device based on gas-liquid-solid three-phase separation - Google Patents
Aerobic treatment device based on gas-liquid-solid three-phase separation Download PDFInfo
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- CN216038824U CN216038824U CN202121017646.2U CN202121017646U CN216038824U CN 216038824 U CN216038824 U CN 216038824U CN 202121017646 U CN202121017646 U CN 202121017646U CN 216038824 U CN216038824 U CN 216038824U
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model provides an aerobic treatment device based on separation of gas, liquid, solid three-phase, relates to water treatment technical field, and it includes: the device comprises a tank body, a gas-liquid-solid three-phase separation assembly, a drainage pipeline, a tail gas treatment device, a raw water pump, a perforated pipe, a blower and an air pipe; the gas, liquid and solid three-phase separation assembly is arranged in the tank body, the upper part of the tank body is connected with a drainage pipeline, the lower part of the tank body is provided with a sewage discharge outlet, and the tail gas treatment device is connected with the top of the tank body; the raw water pump is connected with a perforated pipe arranged at the lower end in the tank body; the blower is connected with the tank body through an air pipe and is used for feeding air to the bottom in the tank body. This processing apparatus simple structure, area is less, and the treatment effeciency is high, need not additionally to increase the sedimentation tank as processing system in the treatment process, simultaneously at equipment operation in-process, carries out alone collection and processing through gas-liquid separation to the gas that produces, prevents the production of harmful gas and stink, effectively avoids the influence that brings all ring edge borders.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to an aerobic treatment device based on gas-liquid-solid three-phase separation.
Background
The aerobic biological treatment process refers to a sewage treatment process for degrading organic matters by utilizing aerobic microorganisms (including facultative microorganisms) to carry out biological metabolism in the presence of oxygen so as to make the organic matters stable and harmless. Common aerobic biological treatment processes are: A/A/O, oxidation ditch, etc.
The A2/O process is also called A-A-O process, and is the abbreviation (Anaerobic-Anoxic-aerobic) for the first letter of Anaerobic-Oxic in English. In a practical sense, the process is an anaerobic-anoxic-aerobic method, and the biological nitrogen and phosphorus removal process is short for.
The oxidation ditch is an activated sludge treatment system, and an aeration tank of the oxidation ditch is in a closed ditch shape, so the oxidation ditch is different from the traditional activated sludge method in the hydraulic flow state, and is a circulating flow aeration ditch which is connected end to end and is also called a circulating aeration tank.
In the above common treatment processes, especially when treating general small-sized low-concentration sewage, the problems of long process flow, additional increase of a sedimentation tank for subsequent treatment and large floor area exist.
Therefore, there is a need to design an aerobic treatment device based on gas-liquid-solid three-phase separation to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the aerobic treatment device based on gas-liquid-solid three-phase separation is designed, a sedimentation tank is not required to be additionally arranged in the treatment process as a treatment system, and meanwhile, in the operation process of the equipment, the generated gas is separately collected and treated through gas-liquid separation, so that harmful gas and odor are prevented from being generated.
The utility model provides an aerobic treatment device based on gas-liquid-solid three-phase separation, which comprises: the device comprises a tank body, a gas-liquid-solid three-phase separation assembly, a drainage pipeline, a tail gas treatment device, a raw water pump, a perforated pipe, a blower and an air pipe;
the gas, liquid and solid three-phase separation assembly is arranged in the tank body and is used for separating solid phase, liquid phase and gas phase substances in the tank body, the upper part of the tank body is connected with a drainage pipeline, the lower part of the tank body is provided with a sewage discharge outlet, and the tail gas treatment device is connected with the top of the tank body and is used for collecting and treating gas discharged from the tank body;
the raw water pump is connected with a perforated pipe arranged at the lower end in the tank body and used for conveying sewage into the tank body; the blower is connected with the tank body through an air pipe and is used for feeding air to the bottom in the tank body.
Preferably, the gas-liquid-solid three-phase separation assembly comprises a flow guide body and a separation cylinder, the upper end of the inverted trapezoidal separation cylinder is fixed on the side wall inside the tank body, the flow guide body is installed below an opening at the lower end of the separation cylinder and is positioned above the perforated pipe, the width of the flow guide body is greater than that of the opening at the lower end of the separation cylinder, a gas collection chamber is arranged between the upper end of the separation cylinder and the side wall of the tank body, and the gas collection chamber is connected with a tail gas treatment device.
Preferably, the upper end of the flow guide body is provided with a flow guide inclined plane which inclines towards the opening direction of the lower end of the separation cylinder, and the lower end of the flow guide body is provided with a separation conical surface used for separating materials to the periphery.
Preferably, the separating cylinder comprises two separating plates which are oppositely arranged at the left and right sides and two elastic connecting plates which are connected at the front ends or the rear ends of the two separating plates, the lower parts of the two separating plates are rotatably connected to the upper parts of the two separating plates, and a length-adjustable adjusting rod is connected between the lower parts of the two separating plates.
Preferably, a filter plate is arranged above the separating cylinder, and a settling zone is arranged between the separating cylinder and the filter plate.
Preferably, the filter plate is provided with a water outlet groove.
Preferably, the perforated pipe is provided with a plurality of water outlet holes.
Preferably, the bottom of the tank body is provided with an aeration membrane component which is connected with an air pipe and comprises an aeration pipe and a plurality of microporous aeration discs arranged on the aeration pipe.
Preferably, the lower end of the tank body is provided with a maintenance hole.
Compared with the prior art, the utility model has the following beneficial effects:
1) the utility model can realize effective removal of low-pollution water pollutants, and simultaneously, a sedimentation tank is not arranged, thereby effectively reducing the occupied area;
2) according to the utility model, because the gas is separately collected and treated in the three-phase separation device, the problem that a tail gas collecting system needs to be separately installed in a common sewage treatment device is effectively solved;
3) the utility model can further improve the utilization rate of dissolved oxygen and save the occupied area under the condition of increasing the height.
Drawings
FIG. 1 is a schematic structural diagram of an aerobic treatment device based on gas-liquid-solid three-phase separation according to a preferred embodiment of the utility model;
the reference numbers illustrate: 1. the device comprises a tank body, 11, a maintenance manhole, 2, a gas-liquid-solid three-phase separation assembly, 21, a flow guide body, 22, a separation cylinder, 23, a gas collection chamber, 24, a separation plate, 25, a connecting plate, 26, an adjusting rod, 27, a filter plate, 28, a water outlet groove, 3, a drainage pipeline, 4, a tail gas treatment device, 5, a raw water pump, 6, a perforated pipe, 7, a blower, 8, an air pipe, 9, an aeration membrane assembly, 91, an aeration pipe, 92 and a microporous aeration disc.
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present embodiment provides an aerobic treatment apparatus based on gas-liquid-solid three-phase separation, which includes: the device comprises a tank body 1, a gas-liquid-solid three-phase separation component 2, a drainage pipeline 3, a tail gas treatment device 4, a raw water pump 5, a perforated pipe 6, a blower 7 and an air pipe 8.
Wherein, the gas, liquid, solid three-phase separation subassembly 2 is installed in jar body 1 for with jar body 1 internal solid phase, liquid phase and gaseous phase material go on separating. The upper part of the tank body 1 is connected with a drainage pipeline 3, the lower part of the tank body 1 is provided with a sewage discharge outlet, and the tail gas treatment device 4 is connected with the top of the tank body 1 and is used for collecting and treating the gas coming out of the tank body 1.
Under the condition of reducing the flow rate, a large part of solid-phase substances exist in the middle lower part of the container, and a small amount of solid-phase substances are separated by the gas-liquid-solid separation component. The generated gas enters a tail gas collecting device through a separation assembly pipeline for treatment, and the liquid enters a drainage pipeline 3 for discharge; and the drainage pipeline 3 is only used for discharging the effluent reaching the standard to a specified position. The tail gas absorption device is mainly used for collecting and treating gas of the three-phase separation component, achieves the purposes of harmlessness and odor removal, and avoids influence on the surrounding environment.
As shown in fig. 1, the gas-liquid-solid three-phase separation assembly 2 includes a flow guide body 21 and a separation cylinder 22, the upper end of the inverted trapezoidal separation cylinder 22 is fixed on the side wall inside the tank body, the flow guide body 21 is installed below the lower end opening of the separation cylinder 22 and above the perforated pipe, the width of the flow guide body 21 is greater than the width of the lower end opening of the separation cylinder 22, a gas collection chamber 23 is arranged between the upper end of the separation cylinder 22 and the side wall of the tank body, and the gas collection chamber 23 is connected with a tail gas treatment device. And, there is a flow guiding inclined plane towards the opening direction of the lower end of the separating cylinder 22 on the upper end of the flow guiding body 21, the lower end of the flow guiding body 21 is provided with a separating conical surface for separating the material to the periphery.
Raw water is pumped into the tank body by the raw water pump and is fully mixed with activated sludge at the bottom, at the moment, because the concentration of pollutants is higher, the microorganisms need to consume dissolved oxygen in the water body in the pollutant decomposition process, a relative anaerobic environment is formed at the moment, and air is sent into the bottom in the tank body 1 by the follow-up blower 7 through the air pipe 8 to supplement oxygen.
In the rising process of the mixed liquid, the mixed liquid is gradually diffused towards two sides under the separation and interception action of the separation conical surface of the flow guide body 21. At this time, the mixed liquid enters a gas-liquid separation zone outside the separation cylinder 22, and because the gas density is small, the rising flow rate is high, the gas in the mixed liquid is collected by the gas collection chamber 23 and finally enters a tail gas collection system through a conduit, so that the influence of the gas generated in the tail gas on the surrounding environment is prevented. At the moment, the whole gas-liquid separation area forms a circular treatment state, and the entering mixed liquid is guided by the guide inclined plane at the upper end of the guide body 21 after being separated, and enters the settling area in the separation cylinder 22 through the opening at the lower end of the separation cylinder 22. After most of the gas enters plenum 23, the mixed liquor containing a very small amount of gas passes through the void above flow conductor 21 and enters the settling zone unit. The sludge in the mixed liquor is now gradually deposited on the walls of the separation drum 22 due to its higher density. Meanwhile, a filter plate 27 is arranged above the separation cylinder 22, and a settling zone is arranged between the separation cylinder 22 and the filter plate 27. The filter plate 27 is provided with a water outlet groove 28, and clear water in the mixed liquid flows out through the water outlet groove 28 to complete mud-water separation.
In this embodiment, the separating cylinder 22 includes two separating plates 24 disposed opposite to each other in the left-right direction and two elastic connecting plates 25 connected to the front ends or the rear ends of the two separating plates 24, the lower portions of the two separating plates 24 are rotatably connected to the upper portions thereof, and a length-adjustable adjusting rod 26 is connected between the lower portions of the two separating plates 24. The length of the adjusting rod 26 can be adjusted to adjust the inclination angle and the opening size of the lower part of the two separating plates 24, and the adjustment can be carried out according to actual requirements, so as to achieve the best and most efficient treatment effect.
Specifically, in the actual use process, in order to effectively reduce the content of suspended matters in the effluent, the hydraulic load of the settling zone is controlled, the area of the settling zone is enlarged, the height of the settling zone is increased, and the surface hydraulic load of the settling zone is controlled to be 0.3m3/(m2H) below (typically 1.0 m)3/(m2H)), the flow rate of the lower end opening of the separation cylinder 22 entering the settling zone is controlled to be less than 1.0m/h (generally less than 2.0 m/h), and the design can better ensure the sludge settling. Meanwhile, in order to better control the sludge settlement, the inclination angle of the settling inclined plate is generally controlled to be more than 50 degrees. As shown in fig. 1, a raw water pump 5 is connected with a perforated pipe 6 installed at the lower end inside the tank body 1 for delivering sewage into the tank body 1; the device is used for continuously feeding water and ensuring a certain rising flow velocity to finish the degradation process of pollutants. The perforated pipe 6 is provided with a plurality of water outlet holes for water inlet in multiple directions.
The blower 7 is connected with the tank body 1 through an air pipe 8 and is used for feeding air to the bottom in the tank body 1. And the bottom of the tank body 1 is provided with an aeration membrane component 9 which is connected with the air pipe 8, and the aeration membrane component 9 comprises an aeration pipe 91 and a plurality of microporous aeration discs 92 arranged on the aeration pipe 91. The device can provide enough dissolved oxygen and also play a role in mixing and stirring the bottom sludge, thereby increasing the pollutant removal efficiency. Under the condition that the height of the container is higher, the dissolved oxygen in the water is more favorably increased.
When the device is used, water with low pollutant concentration enters the whole treatment system through the raw water pump 5, and the perforated pipe 6 is arranged in the treatment system to achieve the purpose of uniform water distribution. When the raw water pump 5 is started, the air inlet valve is opened, the air blower 7 is started, the tail gas absorption device is started, and at the moment, the whole system enters the running state. Along with the continuous operation of the water inlet pump, the liquid level in the whole system begins to rise gradually, the liquid level reaches a certain height, the water quality condition of the water outlet is observed, and when a small amount of mud appears at the water outlet, the raw water pump 5 and the air blower 7 can be adjusted to be small in a frequency conversion mode. And a maintenance manhole 11 is arranged at the lower end of the tank body 1, so that the maintenance is convenient.
The device utilizes the mixed purpose that reaches activated sludge and pollutant and carry out the complete contact of the upwelling velocity and the aeration that raw water pump 5 brought, simultaneously because the upwelling velocity control is less, and pollutant concentration is lower, under the good air quantity condition of control, the realization pollutant that can be fine is got rid of and is saved the purpose of sedimentation tank.
When small sewage is treated, activated sludge with certain concentration is pumped into the container through the raw water pump 5, the activated sludge is acclimated in a slow water inlet mode, and in the acclimation process, the sludge and water are separated by adjusting the solid-liquid-gas three-phase separation system, so that the sufficient sludge concentration in the system is ensured, and the purpose of acclimating the sludge is achieved. The indexes such as COD, ammonia nitrogen and the like of the effluent are continuously and conventionally detected in the domestication process, when the detection value is within the standard reaching range, the water inflow is gradually and slowly increased, meanwhile, the condition of suspended matters at the water outlet is mainly observed, and when the content of the suspended matters is lower, the water inflow can be continuously increased.
E.g. 20m3The small treatment facility of/d has inlet water COD of about 150mg/L, activated sludge concentration of 2500mg/L and inlet water flow rate of 1.2m3H, the air quantity is controlled to be 5-6m3The treatment method has good treatment effect on the COD of the sewage, and meanwhile, the content of suspended matters in the effluent water is less.
This processing apparatus simple structure, area is less, and the treatment effeciency is high, need not additionally to increase the sedimentation tank as processing system in the treatment process, simultaneously at equipment operation in-process, carries out alone collection and processing through gas-liquid separation to the gas that produces, prevents the production of harmful gas and stink, effectively avoids the influence that brings all ring edge borders.
Novel solutions, not limitations thereof; while the utility model has been described in detail and with reference to the foregoing embodiments, it will 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An aerobic treatment device based on gas-liquid-solid three-phase separation is characterized by comprising: the device comprises a tank body, a gas-liquid-solid three-phase separation assembly, a drainage pipeline, a tail gas treatment device, a raw water pump, a perforated pipe, a blower and an air pipe;
the gas, liquid and solid three-phase separation assembly is arranged in the tank body and is used for separating solid phase, liquid phase and gas phase substances in the tank body, the upper part of the tank body is connected with a drainage pipeline, the lower part of the tank body is provided with a sewage discharge outlet, and the tail gas treatment device is connected with the top of the tank body and is used for collecting and treating gas discharged from the tank body;
the raw water pump is connected with a perforated pipe arranged at the lower end in the tank body and used for conveying sewage into the tank body; the blower is connected with the tank body through an air pipe and is used for feeding air to the bottom in the tank body.
2. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 1, characterized in that: the gas, liquid and solid three-phase separation assembly comprises a flow guide body and a separation cylinder, the upper end of the inverted trapezoidal separation cylinder is fixed on the side wall of the tank body, the flow guide body is installed below an opening at the lower end of the separation cylinder and is positioned above the perforated pipe, the width of the flow guide body is greater than that of an opening at the lower end of the separation cylinder, a gas collection chamber is arranged between the upper end of the separation cylinder and the side wall of the tank body, and the gas collection chamber is connected with a tail gas treatment device.
3. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 2, characterized in that: the upper end of the flow guide body is provided with a flow guide inclined plane which inclines towards the opening direction of the lower end of the separation cylinder, and the lower end of the flow guide body is provided with a separation conical surface which is used for separating materials to the periphery.
4. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 2, characterized in that: the separating cylinder comprises two separating plates which are oppositely arranged at the left and right sides and two elastic connecting plates which are connected at the front ends or the rear ends of the two separating plates, the lower parts of the two separating plates are rotatably connected to the upper parts of the two separating plates, and a length-adjustable adjusting rod is connected between the lower parts of the two separating plates.
5. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 2, characterized in that: a filter plate is arranged above the separating cylinder, and a settling zone is arranged between the separating cylinder and the filter plate.
6. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 5, characterized in that: the filter plate is provided with a water outlet groove.
7. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 1, characterized in that: the perforated pipe is provided with a plurality of water outlet holes.
8. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 1, characterized in that: the bottom of the tank body is provided with an aeration membrane component which is connected with an air pipe and comprises an aeration pipe and a plurality of micropore aeration discs arranged on the aeration pipe.
9. The aerobic treatment plant based on the separation of gas, liquid and solid phases as claimed in claim 1, characterized in that: the lower end of the tank body is provided with a maintenance hole.
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| CN202121017646.2U CN216038824U (en) | 2021-05-12 | 2021-05-12 | Aerobic treatment device based on gas-liquid-solid three-phase separation |
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| CN202121017646.2U CN216038824U (en) | 2021-05-12 | 2021-05-12 | Aerobic treatment device based on gas-liquid-solid three-phase separation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906928A (en) * | 2022-05-31 | 2022-08-16 | 广州市环境保护工程设计院有限公司 | Anaerobic reactor |
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2021
- 2021-05-12 CN CN202121017646.2U patent/CN216038824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114906928A (en) * | 2022-05-31 | 2022-08-16 | 广州市环境保护工程设计院有限公司 | Anaerobic reactor |
| CN114906928B (en) * | 2022-05-31 | 2024-01-23 | 广州市环境保护工程设计院有限公司 | Anaerobic reactor |
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