CN208327776U - A kind of novel residual active sludge carbon source recyclable device - Google Patents
A kind of novel residual active sludge carbon source recyclable device Download PDFInfo
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- CN208327776U CN208327776U CN201820706662.4U CN201820706662U CN208327776U CN 208327776 U CN208327776 U CN 208327776U CN 201820706662 U CN201820706662 U CN 201820706662U CN 208327776 U CN208327776 U CN 208327776U
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- carbon source
- microbubble
- sleeve
- residual active
- active sludge
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- 239000010802 sludge Substances 0.000 title claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 14
- 239000007787 solid Substances 0.000 description 14
- 238000000926 separation method Methods 0.000 description 13
- 238000007254 oxidation reaction Methods 0.000 description 9
- 239000007791 liquid phase Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 239000010865 sewage Substances 0.000 description 8
- 210000004027 cell Anatomy 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 239000012634 fragment Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000003834 intracellular effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 210000000805 cytoplasm Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000010718 Oxidation Activity Effects 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
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Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of novel residual active sludge carbon source recyclable devices, the carbon source recyclable device includes storage basin, reaction column, microbubble generating system, ozone generator, micro-net component and water outlet pump, sleeve is housed inside the reaction column lower area, the enters mud pipe of the storage basin protrudes into the sleeve bottom, it is connect by pipeline with the microbubble generating system at the top and bottom of the sleeve, the gas that the ozone generator generates accesses the microbubble generating system, the micro-net component is mounted on the reaction column upper area, the water outlet pump is connect with micro-net component, pass through the utility model, the carbon source recycling in excess sludge can be achieved.
Description
Technical field
The utility model relates to residual active sludge Treatment and recovery fields, more particularly to a kind of novel residual activity
Sludge carbon source recyclable device.
Background technique
China increasingly payes attention to environmental problem in recent years, and sewage treatment capacity is also constantly promoted, the cities and towns of China in 2015
Sewage treatment capacity reaches 1.7 hundred million ton/days.There are about 90% sewage treatment plants to use Activated Sludge Process in China, accordingly
Every annual meeting generates more than 6,250,000 tons dry solid residual active sludges, will cause secondary pollution if dealt with improperly.On the other hand,
In China drug in some provinces especially southern area, since domestic consumption per capita is big, some areas use combined drainage system
There is a problem of water-inlet carbon source deficiency with reasons, sewage treatment plants such as Groundwater infiltration pipelines, limit denitrification efficiency.And it remains
Remaining activated sludge contains a large amount of microbial cells, can recycle carbon source therein and add in the water inlet of sewage disposal system.
Realize that the reuse of residual active sludge carbon source is a kind of novel process occurred in recent years using ozone.Ozone is to sludge
Effect include direct oxidation and indirect oxidation, direct oxidation, that is, ozone property of can choose with unsaturated aromatic compound, no
Saturated fat compounds of group and some functional groups react, and indirect oxidation, that is, ozone, which decomposes to generate, has extremely strong oxidation activity
Oxidation reaction occurs for hydroxyl radical free radical, non-selectivity.By acting on above, ozone makes the cell of residual active sludge microorganism
Wall, cell membrane disruption, the intracellular organic matter dissolution rich in carbon source.But prior art often pays close attention to ozone and residual active sludge
Effect, lack to after reaction mixed liquor carry out high efficient solid and liquid separation process.For example, Publication No. CN106673381A
Chinese utility model patent application discloses a kind of sludge treatment equipment and method, and wherein sludge treatment equipment includes sludge distribution
Pond, suction pump, contact chamber and carbon source conversion pool, the lower part in carbon source conversion pool are equipped with ozonation aerated device, and top is equipped with tail gas
Outlet and carbon overflow outlet, carbon overflow exit are connected to carbon source storage pool.In carbon source conversion pool, ozone concentration 25 is controlled
~150mg/L makes sludge cell wall just be oxidized decomposition, promotes intracellular deliquescent cytoplasm to be released, dissolves
Property cytoplasm flowed up as carbon source, and overflow is discharged, and cell wall fragments precipitate downwards.
However be pointed out that in the prior art, due to intracellular organic matter and extracellular poly- after sludge and ozone reaction
The release of object is closed, the surface point of cell fragment, adhesion property etc. can change, and settling property can sharply decline therewith, if
Be separated by solid-liquid separation merely with gravity and may be unable to reach good separating effect, and cell fragment is flowed out with dissolubility carbon source
Enter subsequent sewage disposal system afterwards, solid particle can not be utilized by denitrification, and can aggravate consolidating for sewage disposal system
Systemic Burden and excess sludge production.In addition, the ozone bubbles that traditional aeration disc type aeration generates are relatively large in diameter, the rate of climb
Fastly, rupture time is short, causes that mass-transfer efficiency is lower, ozone utilization rate is lower.
Utility model content
In order to overcome the deficiencies of the above existing technologies, the utility model is designed to provide a kind of novel residual activity
Sludge carbon source recyclable device utilizes microbubble ozone oxidation residual active sludge, and sludge internal carbon source is discharged to liquid phase, and benefit
It is efficiently separated by solid-liquid separation with microgrid, to realize the carbon source recycling in excess sludge.
In view of the above and other objects, the utility model proposes a kind of novel residual active sludge carbon source recyclable device, packet
Include storage basin, reaction column, microbubble generating system, ozone generator, micro-net component and water outlet pump, the reaction column lower area
Inside is equipped with sleeve, and the enters mud pipe of the storage basin protrudes into the sleeve bottom, at the top and bottom of the sleeve by pipeline with
The microbubble generating system connection, the gas that the ozone generator generates accesses the microbubble generating system, described micro-
Screen component is mounted on the reaction column upper area, and the water outlet pump is connect with micro-net component.
Preferably, the reaction column includes bucket, reaction zone, transition region and Disengagement zone, the sleeve setting from the bottom to top
In the reaction zone, the micro-net component is mounted on the Disengagement zone.
Preferably, the top of the sleeve in the reaction zone is truncated cone-shaped, lower part is cylindrical.
Preferably, the diameter of the Disengagement zone is greater than the diameter of transition region, the Disengagement zone and transition region coupling part
Tilt angle is greater than 60 °.
Preferably, the microbubble generating system include be sequentially connected in series the circulating pump being connected at the top and bottom of the sleeve,
Pressure gauge, flowmeter and microbubble nozzle, the air inlet of the outlet pipe of the ozone generator and the microbubble nozzle
Connection.
Preferably, the microbubble nozzle interior is the tubular structure form that two end cross-sectional areas are big, middle part sectional area is small, and
Straight pipe is set after the microbubble nozzle, so that microbubble is sufficiently mixed with sludge liquid.
Preferably, the micro-net component includes liner plate and microgrid, and there are the diversion trench of recess, top installation in the liner plate two sides
Water outlet, the diversion trench are connected to Water outlet, and the microgrid is pasted onto liner plate two sides, and the Water outlet and the water outlet pump connect
It connects.
Compared with prior art, a kind of novel residual active sludge carbon source recyclable device of the utility model, it is micro- by utilizing
Bubble generating system makes microbubble ozone oxidation residual active sludge, and the mixed liquor after hybrid reaction is entered transition region in gravity
Effect is lower to carry out preliminary separation of solid and liquid, and sludge internal carbon source is discharged to liquid phase, and carries out height using micro-net component in Disengagement zone
The separation of solid and liquid of effect, thus realize in excess sludge carbon source recycling, the utility model have excess sludge carbon source release rapidly,
Separation of solid and liquid is thorough, continuously-running, has both the advantages that excess sludge reduction function.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel residual active sludge carbon source recyclable device of the utility model；
Fig. 2 is the step flow chart of the recovery method carried out using the utility model.
Specific embodiment
Below by way of specific specific example and the embodiments of the present invention is described with reference to the drawings, those skilled in the art
Member can be understood easily the further advantage and effect of the utility model by content disclosed in the present specification.The utility model also may be used
It is implemented or is applied by other different specific examples, the various details in this specification can also be based on different viewpoints and answer
With, carried out under the spirit without departing substantially from the utility model it is various modification and change.
Fig. 1 is a kind of structural schematic diagram of novel residual active sludge carbon source recyclable device of the utility model.Such as Fig. 1 institute
Show, a kind of novel residual active sludge carbon source recyclable device of the utility model, including storage pool 1, reaction column 2, microbubble hair
Raw system 3, ozone generator 4, micro-net component 5 and water outlet pump 6, wherein reaction column 2 includes bucket 24, reaction zone from the bottom to top
23, transition region 22 and Disengagement zone 21, sleeve 25 is equipped with inside reaction zone 23, and the enters mud pipe of 1 bottom of storage basin protrudes into 25 bottom of sleeve
Portion, while being connect by pipeline with microbubble generating system 3 at the top and bottom of sleeve 25, the gas that ozone generator 4 generates connects
Enter microbubble generating system 3.Micro-net component 5 is mounted on Disengagement zone 21, and water outlet pump 6 is connect with the Water outlet of micro-net component 5.
In the utility model specific embodiment, bucket 24 is inverted-cone shape, and dischargeable capacity should be greater than 1 sludge discharging period
The precipitating sludge volume of middle generation.23 inside installation sleeve 25 of reaction zone, preferably, 25 top of sleeve is truncated cone-shaped, lower part is
Cylinder, the sludge retention time of reaction zone 23 are preferably not below 4 hours.Generally, the diameter of Disengagement zone 21 should be greater than transition
For the tilt angle of the diameter in area 22, Disengagement zone 21 and 22 coupling part of transition region more preferably greater than 60 °, Disengagement zone 21 should be able to accommodate institute
It needs micro-net component 5 and reserves certain water surface superelevation, the slot of micro-net component 5 is fixed in Disengagement zone 21.
The microbubble generating system 3 includes being sequentially connected in series the circulating pump 31, the pressure gauge that are connected to 25 top and bottom of sleeve
32, flowmeter 33 and microbubble nozzle 34,31 driving direction of circulating pump are sludge by flowing out at the top of sleeve 25, are sent out by microbubble
25 bottom of sleeve is flowed into after raw system 3, is the tubular structure that two end cross-sectional areas are big, middle part sectional area is small inside microbubble nozzle 34
Form can suck gas and form microbubble.The straight pipe of certain length is set after microbubble nozzle 34, makes microbubble and dirt
Mud liquid is sufficiently mixed.
In the utility model specific embodiment, the side of ozone generator 4 outlet pipe and microbubble nozzle 34
Air inlet connection, the ozone amount provided are not less than 50mg/g MLSS.
The micro-net component 5 is made of liner plate 51 and microgrid 52, and there are the diversion trench of recess in 51 two sides of liner plate, and top is installed out
Head, diversion trench are connected to Water outlet, and microgrid 52 is pasted onto liner plate two sides, and material can be terylene net.
Illustrate the working principle of the novel residual active sludge carbon source recyclable device of the utility model below: storage basin 1
Sludge passes into microbubble generating system 3 from 25 bottom of sleeve of the reaction zone 23 of reaction column 2 by the enters mud pipe of its bottom
With microbubble ozone hybrid reaction, specifically, sludge is flowed out by the top of sleeve 25, and circulating sludge flows through microbubble nozzle 34
When, since nozzle interior sectional area changes, the ozone that negative pressure sucking ozone generator 4 generates is generated, and form microbubble,
Straight pipe microbubble ozone enters 25 bottom of sleeve after mixing with sludge.
The sludge for being mixed with microbubble ozone flows up in the sleeve 25 of reaction zone 23, while continuing with microbubble ozone
Haptoreaction.After flowing out sleeve, mixed liquor enters transition region 22, in transition region 22, sludge cell fragment after rupture and big
Granule foreign moves downward under the effect of gravity, and by the inclined plate on 25 top of sleeve slide to sleeve 25 and reaction column 2 it
Between gap, flow downward and be deposited in bucket, by periodically discharge maintain reaction column in amount of solid it is constant, deliquescent cell
Component and fine particle are discharged into liquid phase, continue up flowing, Disengagement zone 21 are entered after transition region 22, in water outlet pump 6
Driving under, the penetration by liquid microgrid mesh comprising dissolubility carbon source enters inside micro-net component 5, and is sucked away, carefully
Little particle is intercepted by microgrid, to realize separation of solid and liquid, it can be microgrid group in Disengagement zone 21 that sludge supernatant, which is flowed up,
Part provides certain sluicing, reduces the particle deposition on microgrid surface, extends the microgrid cleaning frequency.When microgrid pollution is more tight
Weight after being unable to maintain that stable operation, should take out micro-net component and be cleaned.
Using the utility model working principle can be understood in conjunction with the method and step flow chart of Fig. 2.It is practical new using this
Type recycling includes the following steps:
Step S1, by the sludge of storage basin by enters mud pipe from the sleeve bottom of reaction zone enter, make its in sleeve with
Microbubble ozone carries out hybrid reaction.Specifically, sludge is flowed out by the top of sleeve, circulating sludge flows through microbubble nozzle
When, the ozone that negative pressure sucking ozone generator generates is generated, and form microbubble, it is mixed in straight pipe microbubble ozone and sludge
Sleeve bottom is entered back into after conjunction.
Mixed liquor after hybrid reaction is entered transition region, carries out preliminary separation of solid and liquid under the effect of gravity by step S2.
That is, the sludge cell fragment and large granular impurity after rupture are downward under the effect of gravity after mixed liquor enters transition region
Movement, the inclined plate by upper cartridge slide to the gap between sleeve and reaction column, flow downward and be deposited in bucket, pass through
Periodically discharge maintain reaction column in amount of solid it is constant, deliquescent cellular component and fine particle are discharged into liquid phase, continue to
On flow into Disengagement zone.
Step S3 carries out further high efficient solid and liquid separation using micro-net component in Disengagement zone, finally pumps out carbon source
It goes.In the utility model specific embodiment, deliquescent cellular component and fine particle are discharged into liquid phase, continue up stream
Dynamic to enter Disengagement zone, under the driving of water outlet pump, the penetration by liquid microgrid mesh comprising dissolubility carbon source enters micro-net component
Inside, and be sucked away, and fine particle is intercepted at outside micro-net component, to realize separation of solid and liquid.
In conclusion a kind of novel residual active sludge carbon source recyclable device of the utility model is by utilizing microbubble
System makes microbubble ozone oxidation residual active sludge, by the mixed liquor after hybrid reaction enter transition region under the effect of gravity into
The preliminary separation of solid and liquid of row, sludge internal carbon source is discharged to liquid phase, and carries out efficient solid-liquid using micro-net component in Disengagement zone
Separation, to realize the carbon source recycling in excess sludge.
Compared with prior art, the utility model has the advantages that
1, the utility model uses microbubble generating system, can generate the micron even ozone bubbles of Nano grade,
Residence time is long, mass transfer rate is fast, can effectively improve the utilization efficiency of ozone, contacts in excess sludge with microbubble ozone
In the process, the microbubble ozone of strong oxidizing property can efficiently crack sludge cell and discharge cellular component, by the fast quick-release of carbon source
It is put into liquid phase.
2, the utility model realizes solid-liquid separation function using micro-net component, and is controlled by water outlet pump into mudflow amount, compares
In modes such as gravitational settlings, disengaging time is short, good separating effect, and make device can with continuous operation, without shutting down into mud or
Sedimentation spoil disposal is shut down after reaction.
3, residual active sludge institute carbonaceous sources can be discharged to liquid phase and be recycled by the utility model, and dissolubility carbon source can be with
The Nitrogen removal effect for strengthening the techniques such as AAO, AO, SBR, oxidation ditch, makes up southern area town domestic sewage factory water-inlet carbon source
Insufficient problem.In addition, for excess sludge amount of solid lower than device into mud, the utility model is simultaneous simultaneously after the processing collected in bucket
Has the function of excess sludge reduction.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Anyone skilled in the art can repair above-described embodiment under the spirit and scope without prejudice to the utility model
Decorations and change.Therefore, the rights protection scope of the utility model, should be as listed in the claims.
Claims (7)
1. a kind of novel residual active sludge carbon source recyclable device, including storage basin, reaction column, microbubble generating system, ozone
Generator, micro-net component and water outlet pump, the reaction column lower area inside are equipped with sleeve, and the enters mud pipe of the storage basin protrudes into
The sleeve bottom, the sleeve top and bottom are connect by pipeline with the microbubble generating system, and the ozone occurs
The gas that device generates accesses the microbubble generating system, and the micro-net component is mounted on the reaction column upper area, described
Water outlet pump is connect with micro-net component.
2. a kind of novel residual active sludge carbon source recyclable device as described in claim 1, it is characterised in that: the reaction column
It from the bottom to top include bucket, reaction zone, transition region and Disengagement zone, the sleeve is set to the reaction zone, the micro-net component
It is mounted on the Disengagement zone.
3. a kind of novel residual active sludge carbon source recyclable device as claimed in claim 2, it is characterised in that: the reaction zone
The top of interior sleeve is truncated cone-shaped, lower part is cylindrical.
4. a kind of novel residual active sludge carbon source recyclable device as claimed in claim 2, it is characterised in that: the Disengagement zone
Diameter be greater than the diameter of transition region, the tilt angle of the Disengagement zone and transition region coupling part is greater than 60 °.
5. a kind of novel residual active sludge carbon source recyclable device as claimed in claim 2, it is characterised in that: the microbubble
Generating system includes being sequentially connected in series the circulating pump being connected at the top and bottom of the sleeve, pressure gauge, flowmeter and microbubble spray
Mouth, the outlet pipe of the ozone generator are connect with the air inlet of the microbubble nozzle.
6. a kind of novel residual active sludge carbon source recyclable device as claimed in claim 5, it is characterised in that: the microbubble
Nozzle interior is the tubular structure form that two end cross-sectional areas are big, middle part sectional area is small, and straight tube is arranged after the microbubble nozzle
Section, so that microbubble is sufficiently mixed with sludge liquid.
7. a kind of novel residual active sludge carbon source recyclable device as claimed in claim 2, it is characterised in that: the microgrid group
Part includes liner plate and microgrid, and there are the diversion trench of recess in the liner plate two sides, and Water outlet, the diversion trench and Water outlet are installed in top
Connection, the microgrid are pasted onto liner plate two sides, and the Water outlet is connect with the water outlet pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820706662.4U CN208327776U (en) | 2018-05-14 | 2018-05-14 | A kind of novel residual active sludge carbon source recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820706662.4U CN208327776U (en) | 2018-05-14 | 2018-05-14 | A kind of novel residual active sludge carbon source recyclable device |
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| Publication Number | Publication Date |
|---|---|
| CN208327776U true CN208327776U (en) | 2019-01-04 |
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| CN201820706662.4U Active CN208327776U (en) | 2018-05-14 | 2018-05-14 | A kind of novel residual active sludge carbon source recyclable device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383349A (en) * | 2018-05-14 | 2018-08-10 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of novel residual active sludge carbon source retracting device and method |
-
2018
- 2018-05-14 CN CN201820706662.4U patent/CN208327776U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383349A (en) * | 2018-05-14 | 2018-08-10 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of novel residual active sludge carbon source retracting device and method |
| CN108383349B (en) * | 2018-05-14 | 2023-06-09 | 上海城市水资源开发利用国家工程中心有限公司 | Device and method for recycling carbon source of residual activated sludge |
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