CN209740806U - Membrane module device with self-circulation function - Google Patents
Membrane module device with self-circulation function Download PDFInfo
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- CN209740806U CN209740806U CN201920005645.2U CN201920005645U CN209740806U CN 209740806 U CN209740806 U CN 209740806U CN 201920005645 U CN201920005645 U CN 201920005645U CN 209740806 U CN209740806 U CN 209740806U
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Abstract
The utility model discloses a membrane component device with a self-circulation function, which comprises a reactor cavity, wherein a membrane pool and an anoxic pool arranged outside the membrane pool are arranged in the reactor cavity; a membrane component and a gas energy collector fixed above the membrane component are arranged in the membrane pool; the gas energy collector is in a ladder-shaped shape, and the lower part of the gas energy collector is fixed on the frame of the membrane component; the top of the gas energy collector is fixedly connected with the buffer tank through a connecting gas pipe; the buffer tank sets up in the top of gas can the collector, and the buffer tank passes through the connecting pipe to be connected with the oxygen deficiency pond. The utility model discloses the device can make full use of membrane module scouring gas provide the air supply for the air stripping backward flow to need not additionally to set up the muddy water mixed liquid backward flow in the backwash pump with the membrane cisterna to the oxygen deficiency pond in, not only practiced thrift equipment cost, also reduced the fault rate of equipment.
Description
Technical Field
The utility model relates to a sewage treatment plant, concretely relates to membrane module device with self-loopa function belongs to water treatment technical field.
Background
With the stricter water environment treatment requirements, the upgrading and reconstruction work of the sewage treatment project in China is developed unprecedentedly, and the comprehensive cost benefit after technology upgrading is also considered while high-standard water outlet is met. At present, water treatment technologies are various, but none of them can form a uniform standard, nor can they form a standardized solution. The traditional water treatment equipment severely restricts the implementation of equipment standardization due to factors such as large occupied area, high energy consumption, low operation efficiency and the like, and greatly hinders the development of water treatment industry in China. As a novel and efficient sewage treatment technology, Membrane Bioreactors (MBR) have been widely used in various industrial wastewater treatment fields such as chemical industry, pharmacy, textile, printing and dyeing. However, the MBR process is still restricted from further market competition due to problems of operation energy consumption, operation cost and the like. At present, the traditional membrane bioreactor generally adopts a reflux pump to reflux sludge, so that the energy consumption is increased, and the failure rate of underwater equipment is also improved. In order to solve the defects in the prior art, the development of a membrane module device with a self-circulation function is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a membrane module device with self-loopa function is provided, this membrane module device make full use of aeration equipment sweeps the surplus gas of diaphragm, as the air supply of air stripping backward flow muddy water mixed liquid to need not to set up the muddy water mixed liquid backward flow in the backwash pump with the membrane cisterna in the equipment to the oxygen deficiency pond.
For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:
A membrane module device with a self-circulation function comprises a reactor cavity, wherein a membrane pool and an anoxic pool arranged outside the membrane pool are arranged in the reactor cavity; a membrane component and a gas energy collector fixed above the membrane component are arranged in the membrane pool; the gas energy collector is in a ladder-shaped shape, and the lower part of the gas energy collector is fixed on the frame of the membrane component; the top of the gas energy collector is fixedly connected with the buffer tank through a connecting gas pipe; the buffer tank sets up in the top of gas can the collector, and the buffer tank passes through the connecting pipe to be connected with the oxygen deficiency pond.
Wherein, an aeration device is arranged below the membrane component, one end of the aeration device is provided with an air inlet pipe, and the other end is provided with a vent pipe.
Wherein, the gas energy collector of the ladder platform type is a stainless steel gas energy collector, and the caliber of the bottom of the gas energy collector is consistent with the size of the membrane component frame.
Wherein, a deoxidation cylinder is arranged in the anoxic tank.
Compared with the prior art, the utility model discloses technical scheme has beneficial effect does:
The device can fully utilize the membrane component scouring gas to provide an air source for gas stripping reflux, so that a reflux pump is not additionally arranged to reflux the muddy water mixed liquid in the membrane pool to the anoxic pool, the equipment cost is saved, and the failure rate of the equipment is reduced; in addition, when the membrane is aerated and swept, gas is collected by the gas energy collector, most of the collected muddy water mixed liquor is stripped and returned to the external anoxic tank by the gas energy collector, and a small part of muddy water mixed liquor forms self-circulation return liquid (namely, a part of muddy water mixed liquor in the gas energy collector is returned to the membrane component, and then the muddy water mixed liquor below is blown into the gas energy collector by the gas, and the operation is repeated), so that the contact efficiency of microorganisms on the surface of the membrane and target pollutants is enhanced by the self-circulation return liquid, and the carbon and nitrogen removal efficiency of the membrane component is improved.
Drawings
FIG. 1 is a schematic structural view of a membrane module device with a self-circulation function according to the present invention;
FIG. 2 is a top view of the membrane module device with self-circulation function of the present invention;
Fig. 3 is a schematic structural diagram of the gas energy collector.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 3, the membrane module device with self-circulation function of the present invention comprises a reactor cavity 12, wherein a membrane pool 1 and an anoxic pool 8 disposed outside the membrane pool 1 are disposed in the reactor cavity 12; a membrane module 3 and a gas energy collector 2 fixed above the membrane module 3 are arranged in the membrane pool 1; the gas energy collector 2 is in a trapezoidal shape, the lower part of the gas energy collector 2 is fixed on the frame of the membrane component 3, and the gas energy collector 2 is detachably connected with the frame of the membrane component 3, so that the replacement and the maintenance are convenient; the top of the gas energy collector 2 is fixedly connected with the buffer tank 4 through a connecting gas pipe 5; the buffer tank 4 is arranged obliquely above the gas energy collector 2, the buffer tank 4 is fixed on the side wall of the membrane tank 1 through a steel connecting pipe 9, and meanwhile, the buffer tank 4 is connected with the anoxic tank 8 through the steel connecting pipe 9; a deoxidizing cylinder is arranged in the anoxic tank 8, and the connecting pipe 9 sends the mud-water mixed liquid into the deoxidizing cylinder for deoxidizing treatment.
An aeration device 10 is arranged below the membrane component 3, one end of the aeration device 10 is provided with an air inlet pipe 6, one end of the aeration device is provided with a vent pipe 7, when the air inlet pipe 6 is opened, the vent pipe 7 is closed, the aeration device 10 is connected with an external air source through the air inlet pipe 6, and the aeration device 10 blows gas upwards from the lower part of the membrane component 3 (the gas flow direction is the direction shown by A).
Wherein, the gas energy collector 2 of the ladder-shaped is a stainless steel gas energy collector, the connecting air pipe 5, the buffer tank 4 and the connecting pipe 9 are all made of stainless steel materials, and the caliber of the bottom of the gas energy collector 2 is consistent with the size of the frame of the membrane component 3.
The membrane module device of the utility model is used for treating domestic sewage in a certain city with the treatment scale of 5m3/d, and comprises a flat membrane module 3, a gas energy collector 2 and a buffer tank 4; when the membrane is aerated and swept, gas is collected by the gas energy collector 2, the gas energy collector 2 can fully utilize residual gas, the residual gas is used as a gas source, the swept muddy water mixed liquid is subjected to gas stripping and reflowing to the anoxic tank 8, meanwhile, a part of muddy water mixed liquid reflows to the membrane component, and meanwhile, the muddy water mixed liquid on the membrane component is flushed into the gas energy collector 2 by the gas below, so that self-circulation backflow liquid is formed, in the further aeration and sweeping process, the self-circulation backflow liquid can enhance the contact efficiency of microorganisms on the surface of the membrane and target pollutants, the nitrogen and carbon removal efficiency of the membrane component is improved, and the residual gas is utilized, so that the operation energy consumption of the whole membrane component device is further reduced.
The following table is the water quality data before and after the treatment of the membrane component device of the utility model:
| Item | COD(mg/L) | NH3-N(mg/L) | TN(mg/L) | SS(mg/L) |
| Index of water quality before treatment | 400 | 25 | 40 | 200 |
| index of water quality after treatment | ≤30 | ≤2 | ≤10 | ≤10 |
。
The utility model discloses membrane module device enables membrane bioreactor and saves conventional backward flow power equipment, overcomes the problem that traditional membrane bioreactor operation energy consumption is high, power equipment fault rate is high under water to realize that the operation energy consumption reduces, reduces equipment area, and fault rate is 0's target under water.
Claims (4)
1. A membrane module device with a self-circulation function is characterized in that: the reactor comprises a reactor cavity, wherein a membrane pool and an anoxic pool arranged outside the membrane pool are arranged in the reactor cavity; a membrane component and a gas energy collector fixed above the membrane component are arranged in the membrane pool; the gas energy collector is in a ladder-shaped shape, and the lower part of the gas energy collector is fixed on the frame of the membrane component; the top of the gas energy collector is fixedly connected with the buffer tank through a connecting gas pipe; the buffer tank sets up in the top of gas can the collector, and the buffer tank passes through the connecting pipe to be connected with the oxygen deficiency pond.
2. The membrane module device with self-circulation function according to claim 1, characterized in that: an aeration device is arranged below the membrane component, one end of the aeration device is provided with an air inlet pipe, and the other end of the aeration device is provided with a vent pipe.
3. The membrane module device with self-circulation function according to claim 1, characterized in that: the step-shaped gas energy collector is a stainless steel gas energy collector, and the caliber of the bottom of the gas energy collector is consistent with the size of the membrane component frame.
4. the membrane module device with self-circulation function according to claim 1, characterized in that: and a deoxidizing cylinder is arranged in the anoxic tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005645.2U CN209740806U (en) | 2019-01-02 | 2019-01-02 | Membrane module device with self-circulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005645.2U CN209740806U (en) | 2019-01-02 | 2019-01-02 | Membrane module device with self-circulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209740806U true CN209740806U (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920005645.2U Active CN209740806U (en) | 2019-01-02 | 2019-01-02 | Membrane module device with self-circulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209740806U (en) |
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2019
- 2019-01-02 CN CN201920005645.2U patent/CN209740806U/en active Active
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