CN112479374A - Internal circulation aerobic biochemical reaction process - Google Patents
Internal circulation aerobic biochemical reaction process Download PDFInfo
- Publication number
- CN112479374A CN112479374A CN202011253305.5A CN202011253305A CN112479374A CN 112479374 A CN112479374 A CN 112479374A CN 202011253305 A CN202011253305 A CN 202011253305A CN 112479374 A CN112479374 A CN 112479374A
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- propeller
- internal circulation
- steel platform
- reaction process
- biochemical reaction
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005842 biochemical reaction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 241000894006 Bacteria Species 0.000 claims abstract description 31
- 239000010865 sewage Substances 0.000 claims abstract description 24
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 241000233866 Fungi Species 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 210000005056 cell body Anatomy 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 8
- 241001465754 Metazoa Species 0.000 description 3
- 241000589651 Zoogloea Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The application provides an internal circulation aerobic biochemical reaction process, and belongs to the technical field of sewage treatment. The aerobic zone and the bacteria selecting tank are distributed in the tank body, the bacteria selecting tank is positioned at the end of the tank body, a first propeller and a second propeller are distributed in the bacteria selecting tank, the first propeller and the second propeller face opposite directions, and a water inlet pipe and a sludge inlet pipe are connected into the tank body from one end of the bacteria selecting tank; be provided with the steel platform between aerobic zone and the fungus selection pond, the circulating pump passes through the steel platform to be fixed, and the internal circulation of sewage between aerobic zone and fungus selection pond is realized to cooperation first propeller, second propeller. Be applied to sewage treatment with this application, the inner loop is realized with the fungus pond of selecting to the aerobic zone, and the treatment effect is better.
Description
Technical Field
The application relates to an internal circulation aerobic biochemical reaction process, belonging to the technical field of sewage treatment.
Background
The traditional aerobic biochemical reaction tank is composed of a water inlet pipe, a sludge inlet pipe, a water outlet pipe and an aerobic zone, and the whole structure is relatively simple. However, in the treatment process of industrial wastewater and domestic sewage, various microorganisms in the activated sludge survive and reproduce under the same conditions, and various organic pollutants in the sewage are degraded by the action of biological metabolism. The zoogloea and metazoan cannot cause sludge bulking, but the existing filamentous fungi can generate out-of-control wild growth to directly influence the normal operation of the reactor.
How to realize biodegradation and full utilization of organic pollutants is a technical problem to be solved urgently.
Disclosure of Invention
In view of the above, the application provides an internal circulation aerobic biochemical reaction process, which not only effectively improves the sewage circulation degree, but also realizes the promotion effect of the sewage on the denitrification. The consumption of organic matters in the sewage is finished in the treatment process.
Specifically, the method is realized through the following scheme:
an internal circulation aerobic biochemical reaction process, wherein in the treatment process, the sludge concentration (MISS) of an aerobic zone is 2.0-3.5g/L (preferably 2.5-3.5 g/L or 2.5-3.0 g/L), DO is 2.0-4.0mg/L (preferably 3.0-4.0 mg/L), and HRT is 32-36h (preferably 32 h); DO in the bacteria selecting pool is lower than 0.5mg/L, HRT is about 3.6h (such as 3-4 h); the bacteria selecting tank is positioned at the end head of the tank body, a first propeller and a second propeller are distributed in the bacteria selecting tank, the first propeller and the second propeller face opposite directions, and the water inlet pipe and the sludge inlet pipe are connected into the tank body from one end of the bacteria selecting tank; be provided with the steel platform between aerobic zone and the selection fungus pond, the circulating pump passes through the steel platform to be fixed, and the internal circulation of sewage between aerobic zone and selection fungus pond is realized to cooperation first propeller, second propeller, and the internal circulation volume is 200 of inflow and adds 400%.
Before sewage enters an aerobic zone, a bacteria selecting pool, namely a denitrification zone, is provided, the sewage and sludge are fully mixed under the pushing of a first propeller and stay for a period of time, the growth and the reproduction of filamentous bacteria are inhibited, zoogloea and metazoans are not influenced, and the phenomenon of filamentous bacteria sludge bulking in the sewage treatment process is reduced; the circulating pump is started, the sewage after reaction enters the bacteria selecting pool through the aerobic zone, the internal circulation of the sewage is realized between the aerobic zone and the bacteria selecting pool under the cooperation of the second propeller and the first propeller, and the denitrification of the bacteria selecting pool is promoted by the components in the sewage.
Further, as preferable:
first propeller and second propeller dislocation set, it is relatively less to select the fungus pond space, and the dislocation set is favorable to improving the pushing action among the circulation flow process.
The cell body symmetry sets up, and the inlet tube sets up with advancing mud pipe homonymy, and advances mud pipe and be located the axis department of cell body, and the inlet tube is located skew cell body axis department.
The steel platform is connected with the tank body through an end fixing piece, one end of the end fixing piece, which faces the tank body, is provided with an expansion screw, and the other end of the end fixing piece is welded with the steel platform; the bottom of the steel platform is fixed with the bottom of the pool body through a column foot.
The steel platform is provided with a guide rail, and the circulating pump is arranged on the steel platform through the guide rail. More preferably, the guide rail is located steel platform one side, and three union pieces are installed to this side, and the guide rail is connected through three union pieces with the steel platform, and three union pieces adopt the three way type structure, carry out three angle fixed to the contact surface of guide rail and steel platform, and two union pieces are then installed to the opposite side that does not install the guide rail, realize the reinforcement of steel platform.
The aerobic zone is provided with an aerator which provides sufficient dissolved oxygen for the aerobic zone.
And a waterproof sleeve is arranged between the circulating pump and the steel platform. More preferably, the waterproof sleeve and the pool wall are fixed by a first welding part and a second welding part, and a wing ring sleeve is arranged between the waterproof sleeve and the second welding part.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a view taken along line A-A of FIG. 1;
FIG. 3 is a schematic perspective view of a column shoe according to the present application;
FIG. 4 is a schematic structural view of a steel platform of the present application;
FIG. 5 is a perspective view of the tee in FIG. 4;
FIG. 6 is a perspective view of the second connecting member shown in FIG. 4;
FIG. 7 is a perspective view of the end fastener of FIG. 4;
fig. 8 is a schematic view of the fixing manner of the waterproof sleeve.
Reference numbers in the figures: 1. a tank body; 11. a water inlet pipe; 12. a mud inlet pipe; 13. a water outlet pipe; 2. a bacteria selection pool; 3. an aerobic zone; 31. an aerator; 4. a steel platform; 41. a third connecting piece; 42. a second connecting piece; 43. end firmware; 431. an expansion screw; 5. a first propeller; 6. a second propeller; 7. a column shoe; 8. a circulation pump; 81. a waterproof sleeve; 811. a first welding part; 812. welding part two; 813. a wing ring bushing; 82. a door is clapped; 83. a guide rail.
Detailed Description
An aerobic biochemical reactor in this embodiment is shown in fig. 1 and fig. 2, and includes a tank body 1, an aerobic zone 3 distributed in the tank body 1, and a bacteria selection tank 2, where the bacteria selection tank 2 is located at an end of the tank body 1, a first propeller 5 and a second propeller 6 are distributed in the bacteria selection tank 2, the first propeller 5 and the second propeller 6 are opposite in direction, and a water inlet pipe 11 and a sludge inlet pipe 12 are connected to the tank body 1 from one end of the bacteria selection tank 2; be provided with steel platform 4 between aerobic zone 3 and the fungus selection pond 2, circulating pump 8 passes through steel platform 4 to be fixed, and the internal circulation of sewage between aerobic zone 3 and fungus selection pond 2 is realized to first propeller 5, second propeller 6 of cooperation.
In the treatment process, the sludge concentration (MISS) of the aerobic zone is 2.0-3.5g/L (preferably 2.5-3.5 g/L or 2.5-3.0 g/L), the DO is 2.0-4.0mg/L (preferably 3.0-4.0 mg/L), and the HRT is 32-36h (preferably 32 h); DO in the bacteria selecting pool is lower than 0.5mg/L, and HRT is about 3.6 h; the internal circulation amount is 200 plus 400 percent of the water inflow amount.
Before sewage enters an aerobic zone 3, a bacteria selecting tank 2 (DO is about 0.5 mg) is provided, namely a denitrification zone, the sewage and sludge are fully mixed under the push of a first propeller 5 and stay for a period of time (3.6 h), the growth and the propagation of filamentous bacteria are inhibited, and zoogloea and metazoan are not influenced, so that the abnormal sewage treatment amount is reduced, and the service life of a reaction tank is effectively prolonged; the circulating pump 8 is started, the sewage after reaction enters the bacteria selecting pool 2 through the aerobic zone 3, the internal circulation of the sewage is realized between the aerobic zone 3 and the bacteria selecting pool 2 under the cooperation of the second propeller 6 and the first propeller 5, and the denitrification of the bacteria selecting pool 2 is well promoted by the components in the sewage.
As an alternative: with reference to fig. 1, the first propeller 5 and the second propeller 6 are arranged in a staggered manner, the space of the bacteria selecting pool 2 is relatively small, and the staggered arrangement is favorable for improving the pushing effect in the circulating flow process.
As an alternative: referring to fig. 1, the tank body 1 is symmetrically arranged, the water inlet pipe 11 and the mud inlet pipe 12 are arranged at the same end, the mud inlet pipe 12 is located at the central axis of the tank body 1, and the water inlet pipe 11 is located at a position deviated from the central axis of the tank body 1.
As an alternative: referring to fig. 1, the aerobic zone 3 is provided with an aerator 31 to provide sufficient dissolved oxygen to the aerobic zone 3.
As an alternative: with reference to fig. 4 and 7, the steel platform 4 is connected with the side wall of the tank body 1 through an end fixing member 43, one end of the end fixing member 43 facing the side wall of the tank body 1 is provided with an expansion screw 431, and the other end is welded with the steel platform 4; the bottom of the steel platform 4 is fixed with the bottom of the tank body 1 through a column foot 7.
As an alternative: referring to fig. 1 and 2, a guide rail 83 is installed on the steel platform 4, and the circulation pump 8 is installed on the steel platform 4 through the guide rail 83.
Preferably:
referring to fig. 4, the guide rail 83 is located on one side of the steel platform 4, a three-connecting piece 41 is installed on the side, the guide rail 83 is connected with the steel platform 4 through the three-connecting piece 41, referring to fig. 5, the three-connecting piece is of a three-way structure, three-angle fixation is performed on the contact surface of the guide rail 83 and the steel platform 4, referring to fig. 6, a two-connecting piece 42 is installed on the other side where the guide rail 83 is not installed, and reinforcement of the steel platform 4 is achieved.
In the installation, behind the cell body trompil of steel platform 4 below, hold circulating pump 8's waterproof sleeve 81 and pass through, for ensureing that the installation is stable, waterproof sleeve 81 overcoat is equipped with wing ring sleeve 813, and wing ring sleeve 813 outside rethread welding portion two 812, welding portion 813 weld firmly with cell body 1 carries out the welding.
Claims (10)
1. An internal circulation aerobic biochemical reaction process is characterized in that: the reaction is carried out in an aerobic zone and a bacteria selecting tank, and in the treatment process, the sludge concentration of the aerobic zone is 2.0-3.5g/L, DO is 2.0-4.0mg/L, and HRT is 32-36 h; the bacteria selecting pool is positioned at the end of the pool body, DO of the bacteria selecting pool is lower than 0.5mg/L, HRT is 3-4h, a first propeller and a second propeller are distributed in the bacteria selecting pool, the first propeller and the second propeller face opposite directions, and the water inlet pipe and the mud inlet pipe are connected into the pool body from one end of the bacteria selecting pool; be provided with the steel platform between aerobic zone and the selection fungus pond, the circulating pump passes through the steel platform to be fixed, and the internal circulation of sewage between aerobic zone and selection fungus pond is realized to cooperation first propeller, second propeller, and the internal circulation volume is 200 of inflow and adds 400%.
2. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the first propeller and the second propeller are arranged in a staggered mode.
3. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the aerobic zone is provided with an aerator.
4. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the cell body symmetry sets up, and the inlet tube sets up with advancing mud pipe homonymy, and advances mud pipe and be located the axis department of cell body, and the inlet tube is located skew cell body axis department.
5. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the steel platform is connected with the tank body through an end fixing piece, an expansion screw is arranged at one end, facing the tank body, of the end fixing piece, and the other end of the end fixing piece is welded with the steel platform.
6. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the steel platform is provided with a guide rail, and the circulating pump is arranged on the steel platform through the guide rail.
7. The internal circulation aerobic biochemical reaction process according to claim 6, wherein: the guide rail is connected with the steel platform through a three-way structure, and the three-way structure fixes the contact surface of the guide rail and the steel platform at three angles.
8. The internal circulation aerobic biochemical reaction process according to claim 6, wherein: and the steel platform on the other side opposite to the guide rail is fixed by two connecting pieces.
9. The internal circulation aerobic biochemical reaction process according to claim 1, wherein: the bottom of the steel platform is fixed with the bottom of the pool body through a column foot.
10. An internal circulation aerobic biochemical reaction process according to any one of claims 1 to 9, wherein: the sludge concentration of the aerobic zone is 2.5-3.5 g/L, DO is 3.0-4.0mg/L, and HRT is 32 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253305.5A CN112479374A (en) | 2020-11-11 | 2020-11-11 | Internal circulation aerobic biochemical reaction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253305.5A CN112479374A (en) | 2020-11-11 | 2020-11-11 | Internal circulation aerobic biochemical reaction process |
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| Publication Number | Publication Date |
|---|---|
| CN112479374A true CN112479374A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011253305.5A Pending CN112479374A (en) | 2020-11-11 | 2020-11-11 | Internal circulation aerobic biochemical reaction process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003334593A (en) * | 2002-05-20 | 2003-11-25 | Taiyo Toyo Sanso Co Ltd | Sewage treatment system by oxidation ditch method |
| CN201406347Y (en) * | 2009-06-02 | 2010-02-17 | 江苏金山环保工程集团有限公司 | Integrated multifunctional three-dimensional circulation oxidation ditch equipment |
| CN203754500U (en) * | 2014-03-13 | 2014-08-06 | 绍兴水处理发展有限公司 | Aerobiotic biochemical reactor |
| CN207362361U (en) * | 2017-09-14 | 2018-05-15 | 孟州市锐鑫金属表面处理有限公司 | A kind of embedded-type electric coating bath circulation filter |
| CN208650064U (en) * | 2018-08-02 | 2019-03-26 | 郑州大学 | The fixed device of grouting equipment dam facing under a kind of deepwater environment |
-
2020
- 2020-11-11 CN CN202011253305.5A patent/CN112479374A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003334593A (en) * | 2002-05-20 | 2003-11-25 | Taiyo Toyo Sanso Co Ltd | Sewage treatment system by oxidation ditch method |
| CN201406347Y (en) * | 2009-06-02 | 2010-02-17 | 江苏金山环保工程集团有限公司 | Integrated multifunctional three-dimensional circulation oxidation ditch equipment |
| CN203754500U (en) * | 2014-03-13 | 2014-08-06 | 绍兴水处理发展有限公司 | Aerobiotic biochemical reactor |
| CN207362361U (en) * | 2017-09-14 | 2018-05-15 | 孟州市锐鑫金属表面处理有限公司 | A kind of embedded-type electric coating bath circulation filter |
| CN208650064U (en) * | 2018-08-02 | 2019-03-26 | 郑州大学 | The fixed device of grouting equipment dam facing under a kind of deepwater environment |
Non-Patent Citations (1)
| Title |
|---|
| 吴桐: "《中国城市垃圾、污水处理技术实务》", 31 July 2001, 世界知识出版社 * |
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Application publication date: 20210312 |