CN219972006U - Combined aeration device for magnetic biochemical process - Google Patents
Combined aeration device for magnetic biochemical process Download PDFInfo
- Publication number
- CN219972006U CN219972006U CN202320917201.2U CN202320917201U CN219972006U CN 219972006 U CN219972006 U CN 219972006U CN 202320917201 U CN202320917201 U CN 202320917201U CN 219972006 U CN219972006 U CN 219972006U
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- Prior art keywords
- magnetic
- aerator
- aeration
- reaction tank
- biochemical reaction
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- 238000005273 aeration Methods 0.000 title claims abstract description 47
- 230000003851 biochemical process Effects 0.000 title claims abstract description 18
- 238000005276 aerator Methods 0.000 claims abstract description 44
- 239000010802 sludge Substances 0.000 claims abstract description 38
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 23
- 239000001301 oxygen Substances 0.000 claims abstract description 23
- 238000010992 reflux Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 14
- 238000003756 stirring Methods 0.000 description 10
- 239000003570 air Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000006213 oxygenation reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 241000589651 Zoogloea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Activated Sludge Processes (AREA)
Abstract
The utility model relates to a combined aeration device for a magnetic biochemical process, which comprises: a cyclone aerator and a jet aerator are arranged in the magnetic biochemical reaction tank, and the output end of the aeration fan is connected to the input end of the cyclone aerator; the input end of the sludge reflux pump is connected to the output end of the bottom of the magnetic biochemical reaction tank, and the output end of the sludge reflux pump is connected to the input end of the jet aerator; an oxygen dissolving tester is arranged in the magnetic biochemical reaction tank; the aeration fan, the sludge reflux pump and the dissolved oxygen meter are also connected with the automatic control unit in a communication way. The beneficial effects of the utility model are as follows: the utility model can meet the requirement of high-concentration magnetic loading activated sludge on high-concentration dissolved oxygen through optimizing the internal structure of the aerator and optimizing the combination of different aeration technologies.
Description
Technical Field
The utility model relates to the technical field of sewage biochemical treatment, in particular to a combined aeration device for a magnetic biochemical process.
Background
The biochemical sewage treating process is to make sewage contact with microbe and to decompose various pollutant in the sewage via the biochemical action inside the microbe to convert the pollutant into non-toxic matter. The magnetic biochemical process is to add magnetic powder and activated sludge into sewage to form magnetic loading activated sludge based on the conventional biochemical process, to raise the sludge concentration and sludge settling performance, to separate magnetic material from sludge by means of magnetic field for reuse to lower operation cost.
In the process of treating the magnetic biochemical sewage, a certain method and equipment are needed to be used, air is forced to be introduced into the sewage, so that the sewage in the tank is in contact with the air for oxygenation, the liquid is stirred, the transfer of oxygen in the air into the liquid is accelerated, suspended objects in the tank are prevented from sinking, and the contact of organic matters in the tank with microorganisms and dissolved oxygen is enhanced. In the magnetic biochemical system, a large amount of magnetic materials are added, so that the sedimentation speed of sludge is greatly improved, meanwhile, the concentration of the sludge is more than 3 times that of the traditional biochemical system, and in the running process of the biochemical system, more dissolved oxygen is required to be consumed and the stirring intensity is higher, so that the sewage and active zoogloea in the whole reaction area are fully mixed, and the requirements of full stirring and full contact oxygenation are met.
The existing mature aeration equipment comprises blast aeration, surface aeration, submerged jet aeration, submerged aeration and the like, wherein the aeration is an important process link of a sewage biological treatment system, and is also the process link with the highest running cost in the sewage biological treatment system, and the aeration oxygenation electricity consumption generally accounts for 60-70% of the total power consumption. The traditional aeration means have the problems of low efficiency, high cost, high energy consumption and the like, can not well meet the operation requirements of the magnetic biochemical process, activated sludge is easy to settle in a biochemical tank, the sludge at the bottom of the tank is increased, the effective tank capacity is reduced, and an aeration device is possibly blocked, so that more aeration and stirring facilities are required to be added, and the investment and operation cost are greatly increased.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and aims at the aeration and stirring requirements required by a magnetic biochemical process, and the internal structure of aeration equipment is optimized, so that the condition of a muddy water flow field of a biochemical tank is improved, the reaction area is fully stirred and mixed, and the oxygen supply rate and the oxygen utilization rate are improved. The utility model provides a combined aeration device for a magnetic biochemical process, which has the advantages of simple process, high oxygenation stirring efficiency, low management operation cost and stable treatment effect, by combining and configuring different types of aeration technologies, and the technical scheme is as follows:
comprises a magnetic biochemical reaction tank, a rotational flow aerator, a jet aerator, an aeration fan, a sludge reflux pump, a dissolved oxygen tester and an automatic control unit;
wherein, a rotational flow aerator and a jet aerator are arranged in the magnetic biochemical reaction tank, and the output end of the aeration fan is connected to the input end of the rotational flow aerator; the input end of the sludge reflux pump is connected to the output end of the bottom of the magnetic biochemical reaction tank, and the output end of the sludge reflux pump is connected to the input end of the jet aerator; an oxygen dissolving tester is arranged in the magnetic biochemical reaction tank; the aeration fan, the sludge reflux pump and the dissolved oxygen meter are also connected with the automatic control unit in a communication way.
Preferably, spiral guide fins are arranged in the cyclone aerator, and a plurality of layers of cutters made of ultra-high polymer materials are uniformly distributed.
Preferably, the aeration fan adopts an air suspension fan or a magnetic suspension fan.
Preferably, the cyclone aerator and the jet aerator are fixed at the bottom of the magnetic biochemical reaction tank or are suspended and arranged through a bracket and a fixed column at the top of the tank.
The beneficial effects of the utility model are as follows:
1. the utility model can meet the requirement of high-concentration magnetic loading activated sludge on high-concentration dissolved oxygen by optimizing the internal structure of the aerator and optimizing the combination of different aeration technologies, and the oxygen utilization rate of the system is more than 22%.
2. The utility model combines the negative pressure suction of the cyclone aerator with the jet stirring of the outlet of the jet aerator, and can effectively prevent the sludge deposition problem caused by the density improvement of the magnetic loading activated sludge.
3. The cyclone aerator and the jet aerator can be fixedly arranged at the bottom of the tank or hung at the top of the tank according to the actual condition of the project so as to meet different requirements of reconstruction of the basic project and the old project.
4. The aeration combined device provided by the utility model can be suitable for various processes adopting magnetic biochemistry, including but not limited to AO, A 2 O, SBR, CASS, oxidation ditch, etc.
Drawings
FIG. 1 is a schematic diagram of a combined aeration device for a magnetic biochemical process;
FIG. 2 is a schematic structural view of another combined aeration device for a magnetic biochemical process provided by the utility model;
reference numerals illustrate: the device comprises a magnetic biochemical reaction tank 1, a cyclone aerator 2, a jet aerator 3, an aeration fan 4, a sludge reflux pump 5, a dissolved oxygen tester 6 and an automatic control unit 7.
Detailed Description
The utility model is further described below with reference to examples. The following examples are presented only to aid in the understanding of the utility model. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present utility model without departing from the principles of the utility model, and such modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
As an embodiment, the utility model provides a combined aeration device for a magnetic biochemical process, which is mainly used for various reaction tank aeration systems adopting the magnetic biochemical process, and realizes the functions of oxygen supply and stirring of activated sludge. As shown in fig. 1 and 2, the combined aeration device for the magnetic biochemical process comprises a magnetic biochemical reaction tank 1, a rotational flow aerator 2, a jet aerator 3, an aeration fan 4, a sludge reflux pump 5, a dissolved oxygen meter 6 and an automatic control unit 7.
Wherein, the pretreated sewage automatically flows into the magnetic biochemical reaction tank 1, the magnetic powder and the activated sludge added at the inlet are fully stirred, mixed, gradually cultivated and domesticated in the magnetic biochemical reaction tank 1 to form magnetic loading activated sludge, and the effluent flows into the secondary sedimentation tank or the MBR membrane tank and other subsequent treatment facilities. A rotational flow aerator 2 and a jet aerator 3 are arranged in the magnetic biochemical reaction tank 1 and are used for oxygenating and stirring the magnetic biochemical reaction tank 1, and the output end of the aeration fan 4 is connected to the input end of the rotational flow aerator 2; the input end of the sludge reflux pump 5 is connected to the output end of the bottom of the magnetic biochemical reaction tank 1, and the output end of the sludge reflux pump 5 is connected to the input end of the jet aerator 3; an oxygen dissolving tester 6 is arranged in the magnetic biochemical reaction tank 1; the aeration fan 4, the sludge reflux pump 5 and the dissolved oxygen meter 6 are also connected with the automatic control unit 7 in a communication way, and automatic operation is realized through a PLC.
In addition, spiral guide fins are arranged in the cyclone aerator 2, and a plurality of layers of cutters made of ultra-high polymer materials are uniformly distributed. The magnetic loading activated sludge at the bottom of the magnetic biochemical reaction tank 1 is pumped by negative pressure, the air pressurized by the aeration fan 4 is spirally cut and ascended in the cavity of the cyclone aerator 2, and after the air, the sludge and the sewage mixture are subjected to multistage mixing, cutting and crushing by the cyclone aerator 2, more micro-nano bubbles and larger stirring intensity are generated.
The jet aerator 3 sucks outside air by utilizing negative pressure, magnetically loads activated sludge mixed liquid with the bottom of the magnetic biochemical reaction tank 1 sucked by the sludge reflux pump 5, fully mixes, shears and breaks air, sewage and sludge in the cavity of the jet aerator 3, and the jet is sprayed and diffused by the inclined downward outlet nozzle of the jet aerator 3, so that the mixed stirring and oxygen supply to the magnetic biochemical reaction tank 1 are formed.
The aeration fan 4 adopts an air suspension fan or a magnetic suspension fan, so that the operation energy consumption and the equipment noise are further reduced.
The cyclone aerator 2 and the jet aerator 3 are fixed at the bottom of the magnetic biochemical reaction tank 1 or are suspended and arranged through a bracket and a fixed column at the top of the tank.
The automatic control unit 7 receives 4-20mA signals output by the dissolved oxygen meter 6, and the operating output of the aeration fan 4 and the sludge reflux pump 5 is adjusted in real time by controlling DO value, so that the whole device is ensured to operate in the optimal working condition.
Claims (4)
1. The combined aeration device for the magnetic biochemical process is characterized by comprising a magnetic biochemical reaction tank (1), a cyclone aerator (2), a jet aerator (3), an aeration fan (4), a sludge reflux pump (5), a dissolved oxygen meter (6) and an automatic control unit (7);
wherein, a rotational flow aerator (2) and a jet aerator (3) are arranged in the magnetic biochemical reaction tank (1), and the output end of the aeration fan (4) is connected to the input end of the rotational flow aerator (2); the input end of the sludge reflux pump (5) is connected to the output end of the bottom of the magnetic biochemical reaction tank (1), and the output end of the sludge reflux pump (5) is connected to the input end of the jet aerator (3); an oxygen dissolving tester (6) is arranged in the magnetic biochemical reaction tank (1); the aeration fan (4), the sludge reflux pump (5) and the dissolved oxygen meter (6) are also connected with the automatic control unit (7) in a communication way.
2. The combined aeration device for the magnetic biochemical process according to claim 1, wherein the spiral flow guide fins are arranged in the cyclone aerator (2), and a plurality of layers of cutters made of ultra-high molecular polymer materials are uniformly distributed.
3. The combined aeration device for the magnetic biochemical process according to claim 1, wherein the aeration fan (4) adopts an air suspension fan or a magnetic suspension fan.
4. The combined type aeration device for the magnetic biochemical process according to claim 1, wherein the rotational flow aerator (2) and the jet aerator (3) are fixed at the bottom of the magnetic biochemical reaction tank (1) or are suspended and arranged through a bracket and a fixed column at the top of the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320917201.2U CN219972006U (en) | 2023-04-12 | 2023-04-12 | Combined aeration device for magnetic biochemical process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320917201.2U CN219972006U (en) | 2023-04-12 | 2023-04-12 | Combined aeration device for magnetic biochemical process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219972006U true CN219972006U (en) | 2023-11-07 |
Family
ID=88590085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320917201.2U Active CN219972006U (en) | 2023-04-12 | 2023-04-12 | Combined aeration device for magnetic biochemical process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219972006U (en) |
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2023
- 2023-04-12 CN CN202320917201.2U patent/CN219972006U/en active Active
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