CN209835908U - Ground type double-system membrane bioreactor - Google Patents
Ground type double-system membrane bioreactor Download PDFInfo
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- CN209835908U CN209835908U CN201920592873.4U CN201920592873U CN209835908U CN 209835908 U CN209835908 U CN 209835908U CN 201920592873 U CN201920592873 U CN 201920592873U CN 209835908 U CN209835908 U CN 209835908U
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Abstract
The utility model discloses an overground type double-system membrane bioreactor, which comprises an anoxic tank, an aerobic tank, a reaction sedimentation tank and equipment rooms which are mutually communicated, wherein the anoxic tank, the aerobic tank and the reaction sedimentation tank are integrated into an integral structure and are arranged on the ground level; a precipitator is arranged in the sedimentation tank, and MBR membrane assemblies are arranged on two sides of the precipitator; the double-system membrane bioreactor is integrated into a whole and is arranged on the ground level, and the two processes of 'A/O + precipitation + MBR membrane' and 'A/O + precipitation' can be adjusted according to the concentration of sewage pollutants, so that the quality of effluent water is ensured, the pollution blocking speed of the 'MBR membrane' can be reduced, and the service life of the 'MBR membrane' is prolonged.
Description
Technical Field
The utility model relates to an overground type dual system membrane bioreactor, in particular to an overground type dual system membrane bioreactor with better water treatment effect, belonging to the technical field of sewage treatment equipment.
Background
At present, integrated sewage treatment equipment in the market mainly adopts two process technologies of 'A/O + precipitation' and 'A/O + MBR membrane', wherein the 'A/O + precipitation' process is simple, but the effect on sewage treatment is poor, and when the concentration of pollutants in sewage is high, the sewage cannot be treated to the discharge standard of primary A in GB18918-2002 discharge Standard of pollutants for municipal wastewater treatment plants. Under the current environmental protection policy, the requirement on water quality is higher and higher, and equipment which cannot meet the discharge standard is inevitably eliminated in the future.
The 'A/O + MBR membrane' process enables the effluent quality to be obviously improved through the high-efficiency separation effect of the MBR membrane on water and suspended matters, and can reach the discharge standard of the first grade A. However, the MBR membrane has high cost, the operation requires pumping by a pump, the operation cost is high, and the maintenance cost is high because the membrane is easy to block and needs to be cleaned regularly.
Therefore, an integrated sewage treatment device is needed, and when the concentration of pollutants in sewage is higher, the 'A/O + precipitation + MBR membrane' is used for treating the sewage to ensure the quality of the effluent; when the concentration of pollutants in the sewage is low, "A/O + precipitation" is used for treating the sewage, and the "MBR membrane" stops working, so that the fouling and blocking speed of the "MBR membrane" is prevented from being too high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to above not enough, provide an above-ground formula dual system membrane bioreactor, this dual system membrane bioreactor is integrated as an organic whole structure and sets up on the horizon, "AO + deposits + MBR membrane", "AO + deposits" two kinds of technologies can adjust according to sewage pollutant concentration, has not only guaranteed out water quality of water, can also reduce the stifled speed of the dirt of "MBR membrane", prolongs the life of "MBR membrane".
For solving the technical problem, the utility model discloses a following technical scheme: overground formula dual system membrane bioreactor, including oxygen deficiency pond, good oxygen pond, the reaction sedimentation tank of intercommunication each other to and be used for control to the equipment room of oxygen deficiency pond, good oxygen pond, the inside aeration of reaction sedimentation tank, its characterized in that: the anoxic tank, the aerobic tank and the reaction sedimentation tank are integrated into an integral structure and are arranged above the ground level;
the inner part of the sedimentation tank is provided with a precipitator which is a vertical flow type reaction precipitator, the two sides of the precipitator are provided with MBR membrane components, and the lower part of the MBR membrane components is provided with an MBR membrane aeration component.
According to an optimized scheme, an anoxic tank aeration assembly is installed at the bottom inside the anoxic tank, and an aerobic tank aeration assembly is installed at the bottom inside the aerobic tank.
Furthermore, an aeration fan is arranged in the equipment room and is communicated with the anoxic tank aeration component through an anoxic tank air inlet pipe; the aeration fan is communicated with the aeration component of the aerobic tank through an air inlet pipe of the aerobic tank; the aeration fan is communicated with the MBR membrane aeration component through a sedimentation tank air inlet pipe, and pipeline ball valves are arranged on the anoxic tank air inlet pipe, the aerobic tank air inlet pipe and the sedimentation tank air inlet pipe.
Further, be provided with the air stripping reflux unit between oxygen deficiency pond and the reaction sedimentation tank, the air stripping reflux unit includes back flow and air stripping pipe, and the air stripping pipe is linked together with aeration fan, is provided with the pipeline ball valve on the air stripping pipe, and the import setting of back flow is inside the reaction sedimentation tank, and the export setting of back flow is in the inside in oxygen deficiency pond.
Furthermore, fillers are hung on the upper parts of the anoxic tank aeration component and the aerobic tank aeration component, and the fillers adopt aquatic weed-like fillers.
Furthermore, a sewage inlet is arranged on the anoxic tank, and a treated water outlet is arranged on the reaction sedimentation tank.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage: the overground type double-system membrane bioreactor comprises an anoxic tank, an aerobic tank, a reaction sedimentation tank and equipment rooms which are communicated with one another, wherein the anoxic tank, the aerobic tank and the reaction sedimentation tank are integrated into an integral structure and are arranged on the ground level; a precipitator is arranged in the sedimentation tank, and MBR membrane assemblies are arranged on two sides of the precipitator; the double-system membrane bioreactor is integrated into a whole and is arranged on the ground level, and the two processes of 'A/O + precipitation + MBR membrane' and 'A/O + precipitation' can be adjusted according to the concentration of sewage pollutants, so that the quality of effluent water is ensured, the pollution blocking speed of the 'MBR membrane' can be reduced, and the service life of the 'MBR membrane' is prolonged.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural diagram of an overground type double-system membrane bioreactor in the embodiment of the utility model;
FIG. 2 is a schematic view of the pipeline structure of the overground type double-system membrane bioreactor in the embodiment of the utility model;
in the figure, the position of the upper end of the main shaft,
1-an anoxic tank, 2-an aerobic tank, 3-a reaction sedimentation tank, 4-a plant room, 5-an anoxic tank aeration component, 6-an aerobic tank aeration component, 7-filler, 8-a precipitator, 9-an MBR membrane component, 10-an MBR membrane aeration component, 11-an aeration fan, 12-an anoxic tank air inlet pipe, 13-an aerobic tank air inlet pipe, 14-a sedimentation tank air inlet pipe, 15-a pipeline ball valve, 16-an air stripping reflux device, 17-a reflux pipe, 18-an air stripping pipe, 19-a sewage inlet and 20-a treated water outlet.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
In the embodiment, as shown in fig. 1 and fig. 2, an above-ground type dual-system membrane bioreactor comprises an anoxic tank 1, an aerobic tank 2, a reaction sedimentation tank 3 and a device room 4 for controlling aeration to the interior of the anoxic tank 1, the aerobic tank 2 and the reaction sedimentation tank 3, wherein the anoxic tank 1, the aerobic tank 2, the reaction sedimentation tank 3 and the device room 4 are integrated into a whole structure and are arranged above the ground level. The main body structure of the double-system membrane bioreactor is processed by corrugated steel plates, and high-quality automobile paint is used for anticorrosion treatment inside and outside.
The bottom of the interior of the anoxic tank 1 is provided with an anoxic tank aeration component 5, and the anoxic tank aeration component 5 is a tubular aerator; the bottom of the interior of the aerobic tank 2 is provided with an aerobic tank aeration component 6, and the aerobic tank aeration component 6 is a disc aerator; fillers 7 are hung on the upper parts of the anoxic tank aeration component 5 and the aerobic tank aeration component 6, the fillers 7 adopt aquatic weed-like fillers, and the fillers 7 are made of braid looped piles which are naturally curled into elastic tubes through a special process.
The filler 7 has the advantages of hydrophile, lipophile, strong adsorption capacity (the filler 7 is 120-130% of other fillers), fast film formation (the filler 7 is 30% faster than other fillers), large biomass, large specific surface area, corrosion resistance, long service life, convenient installation and no blockage, and simultaneously, the biomembrane on the filler is continuously updated due to the impulse of water flow and air flow, the bioactivity is high, the mass transfer efficiency is high, so the filler can improve the water purification efficiency by 70-80% compared with other fillers.
A precipitator 8 is arranged in the reaction sedimentation tank 3, the precipitator 8 is a vertical flow type reaction sedimentation tank, sewage is discharged from the top to the bottom of a central pipe in the precipitator 8, suspended matters are settled and enter a conical sludge settling bucket at the bottom of the tank, and sedimentation water flows out of the precipitator 8 from the upper part of the precipitator 8; the both sides of precipitator 8 are provided with MBR membrane module 9, and the lower part of MBR membrane module 9 is provided with MBR membrane aeration subassembly 10, and MBR membrane aeration subassembly 10 is the tubular aerator, and MBR membrane module 9 is connected with the outlet pipe, and the outlet pipe is connected with the suction pump.
The inside of equipment room 4 is provided with aeration fan 11, aeration fan 11 is linked together through oxygen deficiency pond intake pipe 12 and oxygen deficiency pond aeration subassembly 5, aeration fan 11 is linked together through good oxygen pond intake pipe 13 and good oxygen pond aeration subassembly 6, aeration fan 11 is linked together through sedimentation tank intake pipe 14 and MBR membrane aeration subassembly 10, all is provided with pipeline ball valve 15 on oxygen deficiency pond intake pipe 12, good oxygen pond intake pipe 13 and the sedimentation tank intake pipe 14.
The air stripping reflux device 16, the anoxic tank aeration component 5, the aerobic tank aeration component 6 and the MBR membrane aeration component 10 share one aeration fan 11, so that the operation cost is saved, the use amount of equipment is reduced, and the equipment failure rate is reduced.
Be provided with air stripping reflux unit 16 between oxygen deficiency pond 1 and the reaction sedimentation tank 3, air stripping reflux unit 16 includes back flow pipe 17 and air stripping pipe 18, and air stripping pipe 18 is linked together with aeration fan 11, is provided with pipeline ball valve 15 on the air stripping pipe 18, and the import setting of back flow pipe 17 is inside reaction sedimentation tank 3, and the export setting of back flow pipe 17 is in the inside of oxygen deficiency pond 1.
The utility model discloses in adopt two sets of air stripping reflux unit 16, one of them set of air stripping reflux unit 16's back flow 17 import sets up in the inside of precipitator 8, and another set of air stripping reflux unit 16's back flow 17 import sets up in the outside of precipitator 8, and air stripping reflux unit 16 is used for reacting 3 inside backward flow mud air lifts to inside the oxygen deficiency pond 1.
The anoxic tank 1 is provided with a sewage inlet 19, and the reaction sedimentation tank 3 is provided with a treated water outlet 20.
The working principle is as follows: the anoxic tank 1 is provided with a sewage inlet 19, the reaction sedimentation tank 3 is provided with a treated water outlet 20, sewage to be treated enters from the sewage inlet 19 on the anoxic tank 1, denitrification reaction is carried out in the anoxic tank 1 and enters the aerobic tank 2 through an overflow hole between the anoxic tank 1 and the aerobic tank 2, the sewage is subjected to nitration reaction in the aerobic tank 2 and enters the reaction sedimentation tank 3 through an overflow hole between the aerobic tank 2 and the reaction sedimentation tank 3, when the load of water inflow pollutants is small, the MBR membrane module 9 is independently operated in an A/O + sedimentation mode, when the load of water inflow pollutants is large, the MBR membrane module 9 is started to ensure that the effluent reaches the standard, when the system is operated according to an A/O process, the precipitator 8 is arranged in the system for solid-liquid separation, the MBR membrane module 9 is completely stopped to operate, the operation cost is reduced to the maximum extent, and the service life of the membrane is prolonged, the treated sewage is discharged from the treated water outlet 20 to the outside of the dual-system membrane bioreactor.
The overground type double-system membrane bioreactor integrates an anoxic tank 1, an aerobic tank 2, a reaction sedimentation tank 3 and an equipment room 4 into an integral structure, and the integral structure has the following advantages:
(1) the main body is processed by adopting a high-strength weather-resistant corrugated steel plate, has beautiful and atmospheric appearance and high structural strength, and cannot be deformed and damaged under the impact of high water pressure and common external force; the corrugated plate has attractive appearance, the appearance of the whole equipment meets the construction requirement of beautiful villages, high-quality automobile paint is used for anticorrosion treatment inside and outside the equipment, the anticorrosion effect is ensured, and the service life of the equipment is prolonged.
(2) The occupied area is reduced, the connection length of cables and pipelines is reduced, sound insulation is added between equipment, the transmission of noise is reduced, the whole equipment is assembled when leaving a factory, the field can be operated only by connecting the water inlet pipe and the water outlet pipe, the workload of field construction is reduced, and the progress of overall construction is accelerated.
(3) The electric control system adopts a PLC automatic control terminal, automatic operation and remote control can be realized, double-system control is adopted in the PLC, two systems are switched by one key according to operation conditions to prepare a large-size display screen, the whole process flow is clearly presented, each parameter can be changed at any time according to the operation conditions, the remote control mode solves the problem of special person on duty, and operators can know the operation state of the equipment through a network or a mobile phone when not on site, so that the workload of the operators is greatly reduced.
The above-mentioned embodiments are only exemplary, and in order to enable those skilled in the art to better understand the present invention, it should not be understood as a limitation to the scope of the present invention, and any improvement made according to the technical solution of the present invention is included in the scope of the present invention.
Claims (6)
1. Overground formula dual system membrane bioreactor, including oxygen deficiency pond (1), good oxygen pond (2), reaction sedimentation tank (3) that communicate each other to and be used for control to oxygen deficiency pond (1), good oxygen pond (2), equipment room (4) of reaction sedimentation tank (3) inside aeration, its characterized in that: the anoxic tank (1), the aerobic tank (2) and the reaction sedimentation tank (3) are integrated into a whole, and the equipment room (4) is arranged above the ground level;
the sedimentation tank (3) is internally provided with a precipitator (8), the precipitator (8) is a vertical flow type reaction precipitator, MBR membrane modules (9) are arranged on two sides of the precipitator (8), and MBR membrane aeration modules (10) are arranged on the lower portion of the MBR membrane modules (9).
2. The above-ground type dual-system membrane bioreactor according to claim 1, wherein: an anoxic tank aeration component (5) is installed at the bottom inside the anoxic tank (1), and an aerobic tank aeration component (6) is installed at the bottom inside the aerobic tank (2).
3. The above-ground type dual-system membrane bioreactor according to claim 2, wherein: an aeration fan (11) is arranged in the equipment room (4), and the aeration fan (11) is communicated with the anoxic tank aeration component (5) through an anoxic tank air inlet pipe (12); the aeration fan (11) is communicated with the aeration component (6) of the aerobic tank through an air inlet pipe (13) of the aerobic tank; the aeration fan (11) is communicated with the MBR membrane aeration component (10) through a sedimentation tank air inlet pipe (14), and pipeline ball valves (15) are arranged on the anoxic tank air inlet pipe (12), the aerobic tank air inlet pipe (13) and the sedimentation tank air inlet pipe (14).
4. The above-ground type dual-system membrane bioreactor according to claim 3, wherein: be provided with air stripping reflux unit (16) between oxygen deficiency pond (1) and reaction sedimentation tank (3), air stripping reflux unit (16) are including back flow (17) and air stripping pipe (18), and air stripping pipe (18) are linked together with aeration fan (11), are provided with pipeline ball valve (15) on air stripping pipe (18), and the import setting of back flow (17) is inside reaction sedimentation tank (3), and the export setting of back flow (17) is in the inside of oxygen deficiency pond (1).
5. The above-ground type dual-system membrane bioreactor according to claim 2, wherein: the upper parts of the anoxic tank aeration component (5) and the aerobic tank aeration component (6) are respectively suspended with a filler (7), and the filler (7) adopts a waterweed-like filler.
6. The above-ground type dual-system membrane bioreactor according to claim 1, wherein: the anoxic tank (1) is provided with a sewage inlet (19), and the reaction sedimentation tank (3) is provided with a treated water outlet (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920592873.4U CN209835908U (en) | 2019-04-28 | 2019-04-28 | Ground type double-system membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920592873.4U CN209835908U (en) | 2019-04-28 | 2019-04-28 | Ground type double-system membrane bioreactor |
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| Publication Number | Publication Date |
|---|---|
| CN209835908U true CN209835908U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920592873.4U Active CN209835908U (en) | 2019-04-28 | 2019-04-28 | Ground type double-system membrane bioreactor |
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| CN (1) | CN209835908U (en) |
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- 2019-04-28 CN CN201920592873.4U patent/CN209835908U/en active Active
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