CN215288443U - Membrane bioreactor - Google Patents
Membrane bioreactor Download PDFInfo
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- CN215288443U CN215288443U CN202121590990.0U CN202121590990U CN215288443U CN 215288443 U CN215288443 U CN 215288443U CN 202121590990 U CN202121590990 U CN 202121590990U CN 215288443 U CN215288443 U CN 215288443U
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Abstract
The utility model discloses a membrane bioreactor, membrane bioreactor includes the reactor body, the gas-liquid separation board, the aeration part, ultrafiltration membrane part and outlet pipe, be provided with main reaction zone in the reactor body, the gas-liquid separation board sets up in main reaction zone, gas-liquid separation board divides main reaction zone into first reaction zone and second reaction zone, first reaction zone and second reaction zone are at the top intercommunication of gas-liquid separation board, first reaction zone and second reaction zone are in the bottom intercommunication of gas-liquid separation board, the aeration part sets up in the second reaction zone, the ultrafiltration membrane part sets up in the second reaction zone, the outlet pipe sets up the lateral wall at the reactor body, the outlet pipe is used for communicating with ultrafiltration membrane part. Set up first reaction zone, second reaction zone and milipore filter part in membrane bioreactor's inner chamber, simplify the additional structure of equipment, improve the integrated level, but the utility model discloses but wide application in water treatment technical field.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to membrane bioreactor.
Background
The existing biochemical method for removing nitrogen and phosphorus from urban sewage mainly comprises A2The process comprises the steps of/O, oxidation ditch and SBR, but the processes have different defects in actual operation, and have the disadvantages of large floor area, more accessory equipment and low equipment integration level.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above technical problems, the utility model provides a membrane bioreactor, the technical scheme who adopts as follows:
the membrane bioreactor provided by the utility model comprises a reactor body, a gas-liquid separation plate, an aeration component, an ultrafiltration membrane component and a water outlet pipe, wherein a main reaction zone is arranged in the reactor body, the gas-liquid separation plate is arranged in the main reaction zone, the gas-liquid separation plate divides the main reaction zone into a first reaction zone and a second reaction zone, the first reaction zone and the second reaction zone are communicated with each other at the top of the gas-liquid separation plate, the first reaction zone and the second reaction zone are communicated with each other at the bottom of the gas-liquid separation plate, the second reaction zone is used for treating sewage from the first reaction zone, the first reaction zone is used for treating sewage from the outside and the second reaction zone, the aeration component is arranged in the second reaction zone, the ultrafiltration membrane component is arranged in the second reaction zone, the water outlet pipe is arranged on the side wall of the reactor body, and the water outlet pipe is communicated with the ultrafiltration membrane component.
In some embodiments of the present invention, the membrane bioreactor comprises a gas-liquid separation upper plate, the gas-liquid separation upper plate is disposed in the reactor body, the gas-liquid separation upper plate is located above the gas-liquid separation plate, a backflow passage is left between the gas-liquid separation upper plate and the gas-liquid separation plate, and the backflow passage is inclined downwards and is communicated with the first reaction zone.
In some embodiments of the present invention, the gas-liquid separation plate is set as an arc-shaped plate, and the gas-liquid separation plate is protruded toward the second reaction region.
In some embodiments of the present invention, the membrane bioreactor comprises an air blower, and the air blower is communicated with the aeration component through an aeration pipe.
In some embodiments of the present invention, the aeration component is configured as a vortex mixing aeration head.
In some embodiments of the present invention, the first reaction zone is filled with biological filler, and the second reaction zone is filled with biological filler.
In certain embodiments of the present invention, the top of the reactor body is provided with a gas vent, which communicates with the first reaction zone.
In some embodiments of the present invention, the membrane bioreactor comprises a water distribution tank and a water distribution pipe, the water distribution tank is disposed at the top of the reactor body, the water distribution pipe is disposed at the bottom of the water distribution tank, and the water distribution pipe is used for communicating with the first reaction zone.
The utility model discloses an in some embodiments, the distribution tank is provided with the weir plate, the height-adjustable of weir plate, the weir plate will the distribution tank divide into distribution area and flow distribution district, the distribution pipe sets up flow distribution district.
In some embodiments of the present invention, the membrane bioreactor comprises a flow stabilizer tank, the flow stabilizer tank is communicated with the water distribution area.
The embodiment of the utility model has the following beneficial effect at least: set up first reaction zone, second reaction zone and milipore filter part in membrane bioreactor's inner chamber, simplify the additional structure of equipment, improve the integrated level, but the utility model discloses but wide application in water treatment technical field.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a membrane bioreactor in plan view showing biofilm carrier in a second reaction zone;
FIG. 2 is a schematic structural view of the membrane bioreactor in plan view, showing aeration means in the second reaction zone;
FIG. 3 is a schematic structural view of a membrane bioreactor in a side view.
Detailed Description
Embodiments of the invention, examples of which are illustrated in the accompanying drawings, are described in detail below with reference to fig. 1 to 3, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used to indicate an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. The features defined as "first" and "second" are used to distinguish feature names rather than having a special meaning, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
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.
The utility model relates to a membrane bioreactor, equipment structure is compact, and occupation of land is little, goes out high-quality stable of water quality, and surplus sludge is output for a short time, and the decarbonization is efficient, can reach the effect of nitrogen and phosphorus removal simultaneously, collects decarbonization, denitrogenation, dephosphorization function in an organic whole. The membrane bioreactor comprises a reactor body, wherein a main reaction zone is arranged in the reactor body, specifically, the main reaction zone comprises a first reaction zone 101 and a second reaction zone 102, the upper parts of the first reaction zone 101 and the second reaction zone 102 are communicated with each other, the bottoms of the first reaction zone 101 and the second reaction zone 102 are communicated with each other, external sewage is introduced into the first reaction zone 101 from the top, sewage in the first reaction zone 101 enters the second reaction zone 102 from the bottom, the second reaction zone 102 is used for treating sewage from the first reaction zone 101, sewage in the second reaction zone 102 enters the first reaction zone 101 from the upper part, and the first reaction zone 101 is used for treating sewage with low oxygen content from the outside and sewage flowing back from the second reaction zone 102.
It is understood that the second reaction zone 102 is configured as an aerobic zone, the first reaction zone 101 includes a facultative zone and an anaerobic zone, external sewage and sewage returned from the second reaction zone 102 are mixed in the first reaction zone 101 to form the facultative zone, the facultative zone is located above the anaerobic zone, specifically, the facultative zone is disposed at an upper portion of the first reaction zone 101, the anaerobic zone is disposed at a bottom portion of the first reaction zone 101, and sewage flows through the facultative zone, the anaerobic zone and the aerobic zone in sequence and returns to the first reaction zone 101 from an upper portion of the second reaction zone 102.
In the facultative zone, the sewage is degraded and removed by using nitrate as an electron acceptor under the action of denitrifying bacteria, and organic matters in the sewage can provide a required carbon source for denitrification reaction. In the anaerobic zone, the phosphorus accumulating bacteria are converted to easily degrade COD (chemical oxygen demand), phosphate is released, and meanwhile, part of nitrogenous organic matters are aminated to form ammonia nitrogen. In the aerobic zone, besides further degrading organic matters, the nitrification of ammonia nitrogen and the absorption of phosphorus are mainly carried out.
Furthermore, the first reaction zone 101 is filled with biological filler, the second reaction zone 102 is filled with biological filler, the selected biological filler has large specific surface area, easy film formation, large film formation amount, good oxygenation performance, difficult deformation, strong water flow impact resistance, high load and good biochemical treatment effect. Specifically, the biofilm dropped off from the biological filler in the first reaction zone 101 and the intercepted suspended solid settle and concentrate to the bottom, and an anaerobic zone is formed at the bottom of the first reaction zone 101; biofilm on the biofilm packing in the second reaction zone 102 can degrade organic matter in the wastewater.
With reference to the attached drawing, the membrane bioreactor comprises a gas-liquid separation plate 103, the gas-liquid separation plate 103 is arranged in the main reaction zone, and two ends of the gas-liquid separation plate 103 are respectively connected with the inner wall of the membrane bioreactor. Specifically, the gas-liquid separation plate 103 divides the main reaction zone into a first reaction zone 101 and a second reaction zone 102, the first reaction zone 101 and the second reaction zone 102 are communicated at the top of the gas-liquid separation plate 103, and the first reaction zone 101 and the second reaction zone 102 are communicated at the bottom of the gas-liquid separation plate 103, so that the sewage in the main reaction zone circularly flows to realize gas-liquid separation.
The reactor body is provided with an exhaust port 109, the exhaust port 109 is provided at the top of the reactor body, and the exhaust port 109 communicates with the first reaction zone 101 to exhaust nitrogen gas generated by denitrification and excess air in the main reaction zone.
Further, the membrane bioreactor comprises a gas-liquid separation upper plate 107, the gas-liquid separation upper plate 107 is arranged in the reactor body, the gas-liquid separation upper plate 107 is positioned above the gas-liquid separation plate 103, a backflow channel is reserved between the gas-liquid separation upper plate 107 and the gas-liquid separation plate 103, the backflow channel is obliquely and downwards communicated with the first reaction zone 101, and it can be understood that the upper part between the first reaction zone 101 and the second reaction zone 102 is communicated through the backflow channel. Referring to the drawings, the gas-liquid separation upper plate 107 and the gas-liquid separation plate 103 are arranged in a staggered manner and are not connected, and the lower end position of the gas-liquid separation upper plate 107 is lower than the upper end position of the gas-liquid separation plate 103, so that a backflow channel is formed.
The gas-liquid separation plate 103 is arranged to be an arc-shaped plate, the gas-liquid separation plate 103 protrudes towards the second reaction zone 102, and it can be understood that the gas-liquid separation plate 103 is arranged to be an arc-shaped plate and enables sewage in the second reaction zone 102 to form a rotational flow by means of pressure difference, the rotational flow is utilized to realize circulation of the sewage among the facultative area, the anaerobic area and the aerobic area, micro-power sewage circulation treatment is realized, energy consumption is reduced, and the arc-shaped structure is beneficial to diversion. Further, the gas-liquid separation upper plate 107 is provided with an arc-shaped plate, and the gas-liquid separation upper plate 107 protrudes towards the second reaction zone 102, so that flow guiding and rotational flow forming are facilitated.
It can be understood that the membrane bioreactor comprises an aeration component 104, the aeration component 104 is arranged in the second reaction zone 102, the aeration component 104 is arranged at the bottom of the second reaction zone 102, the aeration component 104 blows air to the second reaction zone 102 to form an aerobic zone, gas-water mixed liquid formed by aeration realizes gas-liquid separation under the action of the gas-liquid separation plate 103, the gas is discharged through the gas outlet 109, and the liquid is internally circulated in the main reaction zone. Further, the aeration component 104 is a swirling aeration head, which improves aeration efficiency, promotes sewage swirling to form air-water mixed liquid, can provide scouring action of the membrane bioreactor to prevent active sludge accumulation, can also increase DO in sewage, and provides dissolved oxygen for aerobic reaction of the biological filler in the second reaction zone 102.
In some examples, the membrane bioreactor comprises an air blower 108, the air blower 108 is communicated with the aeration component 104 through an aeration pipe 117, and further, the membrane bioreactor is provided with a device room, and the air blower 108 is arranged between the devices, so that the structure of the membrane bioreactor is integrated. Of course, as an alternative, the membrane bioreactor may not be provided with the blower 108, but alternatively, the blower 108 may be externally connected to the membrane bioreactor through the aeration pipe 117 when the device is started.
The membrane bioreactor comprises an ultrafiltration membrane part 105, the ultrafiltration membrane part 105 comprises an MBR (membrane biological reactor) filtration membrane, the ultrafiltration membrane part 105 is arranged in the second reaction zone 102, and in the second reaction zone 102, compared with the ultrafiltration membrane part 105, biological filler is arranged close to the gas-liquid separation plate 103, the biological membrane on the biological filler can degrade organic matters in sewage, so that BOD (biochemical oxygen demand) in the sewage flowing to the ultrafiltration membrane part 105 is greatly reduced, the reduction of organic load is favorable for the implementation of nitration reaction, and the denitrification efficiency is improved. It can be understood that the biological filler in the second reaction zone 102 retains suspended particles in the sewage, effectively reduces the amount of activated sludge around the ultrafiltration membrane part 105, reduces membrane pollution, avoids blockage, and prolongs the service life of the ultrafiltration membrane part 105.
It will be appreciated that the membrane bioreactor comprises a water outlet pipe 114, the water outlet pipe 114 being disposed in a side wall of the reactor body, the water outlet pipe 114 being adapted to communicate with the ultrafiltration membrane section 105. Further, membrane bioreactor includes self priming pump 116, and self priming pump 116 is connected with outlet pipe 114, and self priming pump 116 provides power for membrane bioreactor from outlet pipe 114 drainage, combines the attached drawing, and self priming pump 116 sets up between equipment. In some examples, the membrane bioreactor includes a clean water tank, and the outlet of the outlet pipe 114 is connected to the clean water tank, and the stored water in the clean water tank can be used for backwashing the membrane bioreactor to save water resources.
Further, the membrane bioreactor comprises a drain pipe 106, the drain pipe 106 is arranged on the side wall of the reactor body, and the drain pipe 106 is used for discharging sludge in the reactor body.
The membrane separation technology and the biotechnology are combined into one to treat sewage, the equipment structure is compact, the nitrogen and phosphorus removal efficiency is high, and the effluent quality is stable. The MBR filtering membrane is set to be a PTFE membrane, namely the ultrafiltration membrane part 105 is set to be a PTFE ultrafiltration membrane component and is made of hydrophilic polytetrafluoroethylene PTFE porous materials, the PTFE membrane is a hollow microfiltration membrane component with high flux and strong durability, the acid and alkali resistance is strong, the cleaning is simple and convenient, and the flux can be thoroughly recovered. The PTFE membrane has good pollution resistance, high sludge load, excellent hydrophilicity, high tensile strength, continuous filament breakage, dry storage and long service life, and greatly reduces the life cycle investment cost of equipment. The ultrafiltration membrane part 105 can retain special microorganisms for gasification dephosphorization so as to realize gasification dephosphorization in the second reaction zone 102, and phosphate radicals or organic phosphorus compounds are converted into phosphine gas to be removed, so that the dephosphorization efficiency of the membrane bioreactor is greatly improved.
With reference to the attached drawing, the membrane bioreactor comprises a water distribution tank 110 and a water distribution pipe 111, wherein the water distribution tank 110 is arranged at the top of the reactor body, the water distribution pipe 111 is arranged at the bottom of the water distribution tank 110, the water distribution pipe 111 is used for communicating with the first reaction zone 101, the water distribution pipe 111 is arranged in a plurality of numbers, the bottom of the water distribution tank 110 is provided with a plurality of water distribution communicating ports, and each water distribution communicating port is sequentially arranged along the length direction of the water distribution tank 110. It is understood that the distribution tank 110 is provided with a weir plate 112, the weir plate 112 divides the distribution tank 110 into a distribution area and a diversion area, the distribution pipe 111 is provided at the diversion area, and uniform distribution is achieved by providing the weir plate 112. Further, the height of the weir plate 112 is adjustable to adjust the water output of the distribution tank 110. Specifically, the weir plate 112 includes a fixed plate and a movable plate, the movable plate is provided with a moving groove, the movable plate and the fixed plate are installed through a connecting member penetrating through the moving groove, the connecting member is set to be a screw or a bolt, the moving groove can be alternatively set to be a waist-shaped hole, and the height of the movable plate is adjusted up and down.
Further, the membrane bioreactor comprises a flow stabilizing groove 113, the flow stabilizing groove 113 is communicated with the water distribution area, specifically, the two sides of the flow stabilizing groove 113 are respectively provided with the water distribution area, and sewage flows through the side wall of the flow stabilizing groove 113 and enters the water distribution area. It is understood that the membrane bioreactor comprises a water inlet pipe 115, and the water inlet pipe 115 is communicated with the flow stabilizing tank 113.
Further, the membrane bioreactor comprises a filter which is arranged at the water inlet end of the water inlet pipe 115 or at the opening of the flow stabilizing groove 113 to filter suspended matters in the sewage. In some examples, the filter is provided as a grating.
In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A membrane bioreactor, comprising: comprises that
A reactor body having a primary reaction zone disposed therein;
the gas-liquid separation plate (103) is arranged in the main reaction zone, the gas-liquid separation plate (103) divides the main reaction zone into a first reaction zone (101) and a second reaction zone (102), the first reaction zone (101) is communicated with the second reaction zone (102) at the top of the gas-liquid separation plate (103), the first reaction zone (101) is communicated with the second reaction zone (102) at the bottom of the gas-liquid separation plate (103), the second reaction zone (102) is used for treating sewage from the first reaction zone (101), and the first reaction zone (101) is used for treating sewage from the outside and the second reaction zone (102);
an aeration component (104), the aeration component (104) disposed in the second reaction zone (102);
an ultrafiltration membrane component (105), the ultrafiltration membrane component (105) disposed in the second reaction zone (102);
the water outlet pipe (114) is arranged on the side wall of the reactor body, and the water outlet pipe (114) is used for being communicated with the ultrafiltration membrane component (105).
2. The membrane bioreactor of claim 1, wherein: the membrane bioreactor comprises a gas-liquid separation upper plate (107), the gas-liquid separation upper plate (107) is arranged in the reactor body, the gas-liquid separation upper plate (107) is positioned above the gas-liquid separation plate (103), a backflow channel is reserved between the gas-liquid separation upper plate (107) and the gas-liquid separation plate (103), and the backflow channel is obliquely and downwards communicated with the first reaction zone (101).
3. A membrane bioreactor according to claim 1 or 2, wherein: the gas-liquid separation plate (103) is an arc-shaped plate, and the gas-liquid separation plate (103) protrudes towards the second reaction zone (102).
4. The membrane bioreactor of claim 1, wherein: the membrane bioreactor comprises a blower (108), and the blower (108) is communicated with the aeration component (104) through an aeration pipe (117).
5. The membrane bioreactor of claim 1 or 4, wherein: the aeration component (104) is arranged as a rotary mixing aeration head.
6. The membrane bioreactor of claim 1, wherein: the first reaction zone (101) is filled with biological filler, and the second reaction zone (102) is filled with biological filler.
7. The membrane bioreactor of claim 1, wherein: the top of the reactor body is provided with an exhaust port (109), and the exhaust port (109) is communicated with the first reaction zone (101).
8. The membrane bioreactor of claim 1, wherein: the membrane bioreactor comprises a water distribution tank (110) and a water distribution pipe (111), wherein the water distribution tank (110) is arranged at the top of the reactor body, the water distribution pipe (111) is arranged at the bottom of the water distribution tank (110), and the water distribution pipe (111) is used for being communicated with the first reaction zone (101).
9. The membrane bioreactor of claim 8, wherein: the water distribution tank (110) is provided with a weir plate (112), the height of the weir plate (112) is adjustable, the weir plate (112) divides the water distribution tank (110) into a water distribution area and a flow distribution area, and the water distribution pipe (111) is arranged in the flow distribution area.
10. The membrane bioreactor of claim 9, wherein: the membrane bioreactor comprises a flow stabilizing groove (113), and the flow stabilizing groove (113) is communicated with the water distribution area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590990.0U CN215288443U (en) | 2021-07-13 | 2021-07-13 | Membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590990.0U CN215288443U (en) | 2021-07-13 | 2021-07-13 | Membrane bioreactor |
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| Publication Number | Publication Date |
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| CN215288443U true CN215288443U (en) | 2021-12-24 |
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| CN202121590990.0U Active CN215288443U (en) | 2021-07-13 | 2021-07-13 | Membrane bioreactor |
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| CN (1) | CN215288443U (en) |
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- 2021-07-13 CN CN202121590990.0U patent/CN215288443U/en active Active
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Address after: 511493 Room 401, building 11, Tian'an headquarters center, No. 555, Panyu Avenue North, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Pengkai Environmental Technology Co.,Ltd. Patentee after: ZHAOQING PENGKAI ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Address before: 511400 Room 401, building 11, Tian'an headquarters center, No. 555, North Panyu Avenue, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU PENGKAI ENVIRONMENT TECHNOLOGY CO.,LTD. Patentee before: ZHAOQING PENGKAI ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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Address after: 511493 Room 401, building 11, Tian'an headquarters center, No. 555, Panyu Avenue North, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Pengkai Environmental Technology Co.,Ltd. Patentee after: Guangdong Pengkai Intelligent Equipment Manufacturing Co.,Ltd. Address before: 511493 Room 401, building 11, Tian'an headquarters center, No. 555, Panyu Avenue North, Donghuan street, Panyu District, Guangzhou City, Guangdong Province Patentee before: Pengkai Environmental Technology Co.,Ltd. Patentee before: ZHAOQING PENGKAI ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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