CN115849556A - Coupled aerobic granular sludge batch treatment reactor - Google Patents
Coupled aerobic granular sludge batch treatment reactor Download PDFInfo
- Publication number
- CN115849556A CN115849556A CN202211598204.0A CN202211598204A CN115849556A CN 115849556 A CN115849556 A CN 115849556A CN 202211598204 A CN202211598204 A CN 202211598204A CN 115849556 A CN115849556 A CN 115849556A
- Authority
- CN
- China
- Prior art keywords
- reactor
- granular sludge
- aerobic granular
- pipeline
- water inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000005276 aerator Methods 0.000 claims description 17
- 239000010865 sewage Substances 0.000 abstract description 12
- 239000008187 granular material Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 244000005700 microbiome Species 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 5
- 239000012634 fragment Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a coupled aerobic granular sludge batch treatment reactor, which utilizes a shear stress generator to realize the sufficient mixing and mass transfer of sludge and sewage, simultaneously, the shear stress generator can optimize the structure of aerobic granular sludge, and a selective pressure generation device is combined to realize the effective control of the structure of the aerobic granular sludge.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, in particular to a coupled aerobic granular sludge batch treatment reactor.
Background
The aerobic granular sludge is a granular aggregate formed by the self-coagulation of microorganisms, and compared with the traditional activated sludge method, the aerobic granular sludge method for treating sewage has the advantages of short flow, high load, multiple effects, impact resistance, high sedimentation speed, less sludge production, energy conservation, land conservation and the like; the multiple strains cooperate with each other, aerobic, anoxic and anaerobic microorganisms are collected, and the method is particularly suitable for treating petrochemical high-concentration and high-total nitrogen sewage; the good application prospect attracts the research of numerous scholars in China, and the demand of carbon emission reduction is fully met. The formation and control of the granular sludge of the aerobic granular sludge reactor need to select aerobic sludge granules, namely inferior granular sludge and granular sludge fragments in the starting process and the running process of a system need to be removed, so that the existence of dominant bacteria of the aerobic granular sludge system is guaranteed, the change is particularly difficult in a batch treatment reactor, and the continuous and efficient running of the aerobic granular sludge reactor is difficult to guarantee.
CN202210072286.9 discloses a settling property adjusting method for aerobic granulated microorganism aggregates, which is characterized in that an ascending area, a descending area and a solid-liquid separation area are arranged in a device, and the ascending area forms the aerobic granulated microorganism aggregates by using water flow shearing force; high-density aerobic particles in a descending zone sink to the bottom for cyclic reaction, low-density aerobic particles float upwards along with water flow and enter a solid-liquid separator for solid-liquid separation, and low-density sludge is subjected to a method of adding mixed powder, so that the settling performance of the granular sludge is improved. The patent screens the aerobic granular sludge by utilizing the difference of sedimentation performance of the aerobic granules with different densities, and is a method for improving an aerobic granular sludge system of a reactor, however, as the reaction proceeds, the aerobic granular sludge becomes larger, cavities are formed inside the aerobic granular sludge, and some aerobic granular sludge even become fragments, the sedimentation performance of the low-density aerobic granular sludge is improved by adding mixed powder, and then the low-density aerobic granular sludge returns to the aerobic granular sludge system, so that the continuous and efficient operation of the aerobic granular sludge reactor is still difficult to ensure. This is because the low-density aerobic granular sludge is aged and reduced in biochemical performance, which does not contribute to the improvement of the performance of the aerobic granular sludge system, and the aerobic granular sludge system is still broken down as the reaction proceeds.
Disclosure of Invention
The invention provides a coupling type aerobic granular sludge batch treatment reactor for solving the defects in the prior art.
The technical scheme adopted by the invention is as follows: a coupled aerobic granular sludge batch treatment reactor comprises an air inlet pipeline, a water inlet pipeline, a reactor shell, a shear stress generator and a selective pressure generating device; the water inlet pipeline, the air inlet pipeline and the selective pressure generating device are respectively connected to the outer side of the reactor shell, and the shear stress generator is arranged on the inner side of the reactor shell.
Preferably, the shear stress generator comprises an aerator, a jet flow water inlet and a flow guide pipe; the jet flow water inlet is connected with a water inlet pipeline, and the aerator is connected with an air inlet pipeline; the aerator is annularly arranged around the jet water inlet, the jet water inlet and the aerator are arranged below the flow guide pipe, and the flow guide pipe is provided with an annular hole. The aerator provides a reasonable air source for the shearing stress generator, drives water flow to rise in the flow guide pipe and shears the aerobic granular sludge; the jet flow water inlet provides rapid mixing for sewage in the SBR reactor in the water inlet stage of the SBR reactor, so that microorganisms inside and outside the aerobic granular sludge all absorb sufficient nutrient substances, namely, the aerobic granular sludge is saturated by the microorganisms; the shear stress generator is a key part of the aerobic granular sludge batch treatment reactor, and in the operation stage of the SBR reactor, under the condition of ensuring the gas-water ratio of sewage treatment, the shear stress generator provides proper hydraulic shear stress for the aerobic granular sludge batch treatment reactor, so that the aerobic granular sludge becomes compact, some disadvantaged bacteria on aerobic granular sludge granules are removed, and the sedimentation performance of the aerobic granular sludge is improved.
Preferably, the selective pressure generating device comprises a group of pipelines with valves and a drainage pipeline, one side of each pipeline with valves is connected with the reactor shell, and the other side of each pipeline with valves is connected with the drainage pipeline; each pipeline with the valve is sequentially arranged in layers in the vertical direction. The aerobic granules with different densities have different sinking performances, high-quality aerobic granules with high density and without cavities sink faster, and low-quality aerobic granules with low density and cavities sink slower; therefore, the good-quality aerobic particles are positioned at the relatively lower part in the reactor at the same time, and the poor-quality aerobic particles are positioned at the relatively upper part in the reactor; can be according to good oxygen granule sludge system operation needs, through selecting pressing the apparatus that produces, at SBR reactor sedimentation stage, through the different degree of depth, different start-up time drainage, provide a suitable selection pressure for good oxygen granule sludge SBR reactor, get rid of the inferior sludge granule in the sewage, mud piece, reach the purpose of selecting the excellence to eliminate the inferiority.
Preferably, the height of the joint of the pipeline with the valve and the reactor shell is consistent with the height of the annular hole formed on the draft tube.
Preferably, a plurality of shear stress generators may be uniformly disposed within the reactor shell according to the reactor scale.
Preferably, the number of the aerators below the draft tube of each shear stress generator is 3-10.
Advantageous effects
(1) The shear stress generator is utilized to realize the sufficient mixing and mass transfer of the sludge and the sewage, and simultaneously, the shear stress generator can optimize the structure of the aerobic granular sludge and is combined with the selective pressure generating device to realize the effective control of the structure of the aerobic granular sludge.
(2) The selective pressure generating device is utilized to provide different selective pressures by draining water at different depths and different starting times in the precipitation stage of the batch treatment reactor, so that aerobic granular sludge meeting requirements is reserved for recycling, and the inferior sludge granules and sludge fragments which do not meet the requirements are discharged along with sewage, and the process operation is flexible.
(3) The invention has simple structure, adopts modularized and device design, can be automatically controlled, and ensures the stable operation of the aerobic granular sludge system.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of a portion of a flow conduit according to the present invention;
in the figure: 1. an air inlet pipeline; 2. a water inlet pipe; 3. a reactor shell; 4. a flow guide pipe; 5. a pipeline with a valve; 6. a water discharge pipeline; 7. an annular aperture; 8. an aerator; 9. and a jet flow water inlet.
Detailed Description
As shown in fig. 1-2: a coupled aerobic granular sludge batch treatment reactor comprises an air inlet pipeline 1, a water inlet pipeline 2, a reactor shell 3, a flow guide pipe 4, a pipeline with a valve 5, a drainage pipeline 6, an annular hole 7, an aerator 8 and a jet flow water inlet 9. The reactor shell 3 provides space for sewage treatment; the water inlet pipeline 2 is used for conveying sewage to the reactor, and the water inlet pipeline 2 is connected with a jet flow water inlet 9; the air inlet pipeline 1 is connected with an aerator 8 and used for conveying air with certain pressure to the reactor, so that on one hand, power is provided for water flow movement in the reactor, and on the other hand, the reactor is oxygenated; the four aerators 8 are annularly arranged around the jet water inlet 9, the jet water inlet 9 and the aerators 8 are arranged below the flow guide pipe 4, and the flow guide pipe 4 is provided with an annular hole 7. One side of each of the four pipelines 5 with valves is connected with the reactor shell, and the other side is connected with a drainage pipeline 6; each pipeline 5 with the valve is sequentially arranged in layers in the vertical direction, and the height of the joint of the pipeline 5 with the valve and the reactor shell 3 is consistent with the height of the annular hole 7 formed on the flow guide pipe 4.
Under the action of the jet flow water inlet 9 and the aerator 8, water flow rises in the guide pipe 4 to drive granular sludge in the reactor to move, and the water flow carrying the sludge flows out of the top of the guide pipe and then sinks and deposits around the guide pipe; the aerobic granules with different densities have different sinking performances, high-quality aerobic granules with high density and without cavities sink faster, and low-quality aerobic granules with low density and cavities sink slower; therefore, the good-quality aerobic particles are positioned at the relatively lower part in the reactor at the same time, and the poor-quality aerobic particles are positioned at the relatively upper part in the reactor; at the moment, the selective pressure generating device is used for draining water at different depths and different starting times in the precipitation stage of the batch treatment reactor, and under the condition that the water level of the reactor is ensured to descend and a certain speed is maintained, a proper selective pressure is provided for the aerobic granular sludge batch treatment reactor, so that inferior sludge granules and sludge fragments in sewage are removed, and the purpose of selecting and eliminating inferior sludge is achieved. Under the condition of quick water drainage of the reactor, water in the diversion pipe 4 must be quickly discharged, but the sludge at the bottom cannot be splashed, and the diversion pipe 4 is required to be provided with an annular hole 7 to ensure that water flow is quickly discharged; the discharged sewage is discharged through a water discharge pipeline 6 and enters a next-stage treatment facility or is discharged.
Claims (6)
1. A coupled aerobic granular sludge batch treatment reactor is characterized in that: comprises an air inlet pipeline, a water inlet pipeline, a reactor shell, a shear stress generator and a selective pressure generating device; the water inlet pipeline, the air inlet pipeline and the selective pressure generating device are respectively connected to the outer side of the reactor shell, and the shear stress generator is arranged on the inner side of the reactor shell.
2. The coupled aerobic granular sludge batch reactor of claim 1, wherein: the shear stress generator comprises an aerator, a jet flow water inlet and a flow guide pipe; the jet flow water inlet is connected with a water inlet pipeline, and the aerator is connected with an air inlet pipeline; the aerator is annularly arranged around the jet water inlet, the jet water inlet and the aerator are arranged below the flow guide pipe, and the flow guide pipe is provided with an annular hole.
3. The coupled aerobic granular sludge batch reactor of claim 2, wherein: the selective pressure generating device comprises a group of pipelines with valves and drainage pipelines, wherein one side of each pipeline with a valve is connected with the reactor shell, and the other side of each pipeline with a valve is connected with the drainage pipeline; each pipeline with the valve is sequentially arranged in layers in the vertical direction.
4. The coupled aerobic granular sludge batch reactor of claim 3, wherein: the height of the joint of the pipeline with the valve and the reactor shell is consistent with the height of the annular hole formed on the flow guide pipe.
5. The coupled aerobic granular sludge batch reactor of claim 3, wherein: a plurality of shear stress generators are uniformly arranged in the reactor shell according to the reactor scale.
6. The coupled aerobic granular sludge batch reactor of claim 5, wherein: the number of the aerators below the diversion pipe of each shear stress generator is 3-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598204.0A CN115849556A (en) | 2022-12-14 | 2022-12-14 | Coupled aerobic granular sludge batch treatment reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598204.0A CN115849556A (en) | 2022-12-14 | 2022-12-14 | Coupled aerobic granular sludge batch treatment reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115849556A true CN115849556A (en) | 2023-03-28 |
Family
ID=85672525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211598204.0A Pending CN115849556A (en) | 2022-12-14 | 2022-12-14 | Coupled aerobic granular sludge batch treatment reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115849556A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911835A (en) * | 2006-08-29 | 2007-02-14 | 华南理工大学 | Sequential air lifting circulation waste water biological treatment reactor and its process |
| JP2007275845A (en) * | 2006-04-11 | 2007-10-25 | Sumitomo Heavy Industries Environment Co Ltd | Granular microorganism sludge preparation arrangement and granular microorganism sludge producing method |
| CN201520671U (en) * | 2009-05-18 | 2010-07-07 | 北京盖雅技术中心有限公司 | Aerobic granular sludge cultivation integrated square device based on engineered application |
| CN104828944A (en) * | 2015-04-16 | 2015-08-12 | 清华大学 | Integrated sewage treatment system and method for hydrolytic-aerobic granular sludge |
| CN107352640A (en) * | 2017-07-13 | 2017-11-17 | 浙江大学 | The device and method of aerobic particle mud fast culture based on sludge age control |
| CN113461157A (en) * | 2021-05-08 | 2021-10-01 | 光大水务科技发展（南京）有限公司 | Activated sludge guide cylinder, guide mechanism and sewage treatment strengthening device |
| WO2022057123A1 (en) * | 2020-09-18 | 2022-03-24 | 广东粤海水务投资有限公司 | Double-aeration aerobic granular sludge-membrane bioreactor coupling device and application thereof |
-
2022
- 2022-12-14 CN CN202211598204.0A patent/CN115849556A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007275845A (en) * | 2006-04-11 | 2007-10-25 | Sumitomo Heavy Industries Environment Co Ltd | Granular microorganism sludge preparation arrangement and granular microorganism sludge producing method |
| CN1911835A (en) * | 2006-08-29 | 2007-02-14 | 华南理工大学 | Sequential air lifting circulation waste water biological treatment reactor and its process |
| CN201520671U (en) * | 2009-05-18 | 2010-07-07 | 北京盖雅技术中心有限公司 | Aerobic granular sludge cultivation integrated square device based on engineered application |
| CN104828944A (en) * | 2015-04-16 | 2015-08-12 | 清华大学 | Integrated sewage treatment system and method for hydrolytic-aerobic granular sludge |
| CN107352640A (en) * | 2017-07-13 | 2017-11-17 | 浙江大学 | The device and method of aerobic particle mud fast culture based on sludge age control |
| WO2022057123A1 (en) * | 2020-09-18 | 2022-03-24 | 广东粤海水务投资有限公司 | Double-aeration aerobic granular sludge-membrane bioreactor coupling device and application thereof |
| CN113461157A (en) * | 2021-05-08 | 2021-10-01 | 光大水务科技发展（南京）有限公司 | Activated sludge guide cylinder, guide mechanism and sewage treatment strengthening device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102745809B (en) | Anaerobic fluidized bed reactor | |
| CN206014509U (en) | A kind of two-phase laminated flow inner-outer circulation anaerobic reactor | |
| CN103332784B (en) | Three-stage circulation aerobic reactor | |
| CN103011402B (en) | Double-circulation anaerobic reactor | |
| CN104445605B (en) | A kind of method of circulating jet anaerobic reactor and processing waste water thereof in machinery | |
| CN104743745B (en) | A kind of garlic wastewater advanced treatment system | |
| CN103011404B (en) | Internal-mixing anaerobic reaction tank | |
| CN204079728U (en) | The disposal system of liquid extruded by a kind of rubbish | |
| CN203007035U (en) | Dual-circulation anaerobic reactor | |
| CN106966490A (en) | A kind of high-efficiency aerobic reactor and sewage treatment process | |
| CN112142196A (en) | Method for treating high-concentration degradation-resistant wastewater by using anaerobic self-circulation system | |
| CN115849556A (en) | Coupled aerobic granular sludge batch treatment reactor | |
| CN107973399B (en) | High-efficient three-phase separation system | |
| CN103395955B (en) | High-speed and down-flow type sludge back-mixing anaerobic reactor | |
| CN201077804Y (en) | Intrinsic cycle anaerobic flow equalizing double reaction tower | |
| CN203007037U (en) | Internal mixing anaerobic reactor | |
| CN203392922U (en) | High-speed sink-flow type reverse sludge mixing anaerobic reactor | |
| CN212954460U (en) | High-efficient device that subsides of mine water | |
| CN214457495U (en) | Self-maintenance sewage treatment integrated equipment | |
| CN101746896B (en) | Inner-outer circulation anaerobic device | |
| CN210176568U (en) | Anaerobic ammoxidation circulating reactor | |
| CN205953661U (en) | Integration column type high -concentration organic wastewater treatment ware | |
| CN104211173A (en) | Modularized intelligent anaerobic reaction system | |
| CN215403629U (en) | Biochemical pretreatment system of printing and dyeing wastewater based on IC anaerobic reactor | |
| CN221296467U (en) | Cylindrical subsurface flow type ABR anaerobic reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |