CN106587337A - Immersion type aerobic activated sludge granulation method - Google Patents
Immersion type aerobic activated sludge granulation method Download PDFInfo
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- CN106587337A CN106587337A CN201611159374.3A CN201611159374A CN106587337A CN 106587337 A CN106587337 A CN 106587337A CN 201611159374 A CN201611159374 A CN 201611159374A CN 106587337 A CN106587337 A CN 106587337A
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- sludge
- aerobic
- activated sludge
- granulating
- deflection cone
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- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses an immersion type aerobic activated sludge granulation method, which comprises a bubble-activated sludge sorting flow guide cone, two sludge passages and a solid-liquid separation cabin, wherein the bubble-activated sludge sorting flow guide cone is positioned at the lower part; the two sludge passages are in symmetrical distribution in the middle part and form 45-degree to 60-degree included angles with the horizontal direction; the solid-liquid separation cabin is arranged in the middle of the two sludge passages; a supernate buffer cabin with a cover on the top end is arranged on the sludge passages through a support frame; a sawtooth-shaped water outlet weir is arranged in the supernate buffer cabin. The device has the advantages that the aerobic activated sludge self-agglomerating granulation and fast solid-liquid separation in the sludge/waste water aerobic biochemical treatment process can be realized; the occurrence of sludge expansion is avoided; the anti-impact capability of an aerobic biological tank and the organic load of the activated sludge can be improved, so that the organic matter removal rate can be improved; the floc suspension concentration in the water is reduced; the water quality of outlet water is improved; meanwhile, the modular multi-group parallel connection mode can be used for combined installation according to the field practical condition requirements of a sewage treatment plant, and the arrangement and installation density can be flexibly changed in the field.
Description
Technical field
The present invention relates to a kind of sludge is into granule processing method, more particularly to a kind of immersion aerobic activated sludge granulating side
Method.
Technical background
In recent years, because in traditional activated sludge process sludge bulking cause settling property to decline this difficult problem, aerobic grain
The research of sludge obtains the extensive concern of people, and the research of biological wastewater treatment Domain Theory and engineer applied are proved, immobilized
Activated sludge is more more efficient than suspended active sludge in terms of purification of water quality, it is considered to be most promising biological wastewater treatment
One of technology.Aerobic particle mud is the group being made up of microorganisms mutually assemble, several species, containing upper in every gram of sludge
Million bacterium, these bacteriums relate to physics, the chemical and biology between microorganism in the degradation process of multiple pollutant matter
Effect.Aerobic particle mud possesses the features such as high density, irregular figure, compact structure and excellent sedimentation function, these features
High-biomass and microorganism concn can be maintained, more reasonably biological community structure can be maintained, therefore in less occupation of land
The impact load that high organic loading and variation water quality bring can be born on area.But due to aerobic particle mud cultivation cycle it is long,
Limit its application in engineering, current biochemical oxidation method sewage treatment process, typically regulating reservoir, anaerobic pond, oxidation
Pond, mudpan, sludge reflux pump, technological process is long, processing routine is complicated and disperse, not easy operation control with manage, base
Build investment and floor space is big.
The content of the invention
To solve above-mentioned technical problem, the invention provides one kind can be adopted according to sewage treatment plant's on-site actual situations demand
Installed with the combination of modularization multigroup parallel way, can scene flexibly change lay and packing density a kind of aerobic activity of immersion
Sludge granulation process.
To reach above-mentioned technical purpose, following technical scheme is this invention takes, aerobic activated sludge is good by immersion
Oxygen activity sludge granulating apparatus granulating, mud mixed liquid Jing aerations are promoted to the spinning fusiformis bubble-activated sludge point of granulating apparatus
Select deflection cone, upwards relative motion, to upper entrance, is symmetrically divided after entrance into middle part along device lateral wall to cause sludge
Two sludge passages straight at 45 ° of -60 ° of angles of cloth, the aerobic activated sludge of granulating is logical from sludge under hydraulic pressure effect
Road lower part outlet is back to aerobic biochemical pool, and little density sludge Jing sludge passages inlet enters separation of solid and liquid storehouse；In solid-liquid point
In storehouse, clear liquid Jing supernatants surge bunker and zigzag effluent weir and directly water outlet, granulating sludge retention is in separation of solid and liquid storehouse；
Be collected in the aerobic active granulating sludge in separation of solid and liquid storehouse further closely knit in the presence of deadweight, cause a part of big density into
The aerobic activated sludge of grain exits into again aerobic biochemical pool by from the outlet of reunion sludge beneath galleries, participates in aerobic biochemical anti-
Should.
Immersion aerobic activated sludge granulating apparatus include being located at bottom bubble-activated sludge sorting deflection cone, deflection cone
Upper two sludge autohemagglutination granulating passages being distributed by support connected symmetrical dendrimer straight at 45 ° of -60 ° of angles, two sludge passages
Centre is separation of solid and liquid storehouse, and top supernatant surge bunker with cover is arranged on sludge passage by support, zigzag effluent weir
In being installed on supernatant surge bunker.A whole set of immersion aerobic activated sludge granulating apparatus top is neat with aerobic biochemical aeration pit level
It is flat, with liquid level difference as motive force, reach aerobic biochemical pool water outlet.
Bubble-activated sludge sorting deflection cone is triangle deflection cone, circular deflection cone, oval deflection cone, spinning fusiformis
One kind in deflection cone, preferably smooth streamline spins fusiformis deflection cone, can effectively prevent bubble from entering device settling zone, reduces because of gas
The factors such as bubble cutting disturbance and make the probability that initial stage flco granulating sludge crushes again, simultaneously because guide functions are aeration being lifted
Mixed liquor to enter and provide appropriate auxiliary from reunion granulating passage and guide, in addition its can sorting can make big density granulating activity
Sludge Jing is back in aerobic biochemical pool.
Aerobic activated sludge mixed liquor is lifted into the curve of installing that device middle part horizontal angle is 45 ° -60 ° and interlocks by aeration
The convex aerobic activated sludge of smooth drum from reunion sludge passage, because density ratio water it is little, therefore bubble floating, and active sludge intermixture
Under the differential pressure action of passage two ends, to promote state staggeredly to smooth the convex aerobic activated sludge of drum from dirt of reuniting into curve is installed
Mud passage, staggeredly smooth drum is convex for the curve of floc sludge random inertia roll-over crash channel side wall in the channel in mixed liquor, causes
Make cotton-shaped activated sludge produce it is centripetal arrive from reunion be gathered into Granular sludge, with flowing through passage sludge with mixed liquor waterpower
The time of staying increases, further promote the sludge of initial stage granulating again centripetal reunion to form big density granulating activated sludge, this
Big density granulating activated sludge on the panel for possessing certain level angle slide downward and to be back to aerobic activated sludge biochemical anti-
Ying Chi, in here circulation, you can cotton-shaped activated sludge shape is become into seed activity sludge, while also can maintain aerobic in biochemistry pool
Activated sludge concentration, the activated sludge of granulating can be prevented effectively from sludge bulking, strengthen the impact resistance in aerobe pond, improve
Aerobic activated sludge organic loading level, is conducive to that COD and BOD numerical value in water outlet is greatly reduced.
Supernatant surge bunker prevents from causing granulating activated sludge to float because of hydraulic disturbance, enters biochemical by effluent weir
Pond water outlet.
During sewage is processed, aerobic activated sludge mixed liquor is lifted the triangle set by bottom of device by aeration and is led
Flow cone, circular deflection cone, oval deflection cone, spinning fusiformis deflection cone or smooth fairshaped spinning fusiformis bubble-activated sludge point
Select deflection cone so that upwards relative motion enters into the curve staggeredly convex sludge passage of smooth drum to sludge along device lateral wall；It is dirty
Mud flco is by mechanisms such as centripetal collision, pressure reduction promotion and inertia rollings so as to self reunion granulating；The aerobic work of granulating
Property sludge enter separation of solid and liquid storehouse, clear liquid Jing supernatants surge bunker and zigzag effluent weir under hydraulic pressure effect and directly water outlet,
Granulating sludge retention is in separation of solid and liquid storehouse；The aerobic active granulating sludge for gathering separation of solid and liquid storehouse is further in the presence of deadweight
It is closely knit, the aerobic activated sludge of a part of big density granulating is caused by between reunion granulating passage and spinning fusiformis sorting deflection cone
Gap exits into again aerobic biochemical pool, participates in aerobic biochemical reaction, is prevented effectively from sludge bulking, strengthens the anti-of aerobe pond
Impact capacity, being also beneficial to aerobic activated sludge can bear more high organic loading, so that water outlet is greatly reduced in COD and BOD numerical value；
The aerobic activated sludge of little density granulating, then plays screening crown_interception, further to active pollution index in separation of solid and liquid storehouse
Reduce supernatant buffering area and effluent SS numerical value.So far device realizes that efficiently quickly solid-liquid divides in aeration biochemical processing pond
From, aerobic sludge autohemagglutination granulating, COD, BOD and SS numerical value in water outlet is greatly reduced, improves the effluent quality of aerobic biochemical pool.Together
When reach GB18918-2002 in water outlet《Urban wastewater treatment firm pollutant emission standard》While one-level A standard, effectively carry
High utilization ratio of device and saving sewage treatment plant take up an area.
The present invention simplifies and reduces process equipment cost, and improves the stability of aerobic granular sludge of formation, for
Engineer applied is promoted.This device is immersed in aerobic biochemical pool, is that aerobic sludge is integrated from reunion, the sorting backflow of granulating sludge
Change processing meanss, according to sewage treatment plant's scene actual demand design specification, installed using the multigroup parallel way combination of modularization,
Can scene flexibly change laying and packing density based on the immersion aerobic activated sludge process of granulation device of separation of solid and liquid, lead to
Cross bubble-activated sludge sorting deflection cone, smoothed curve and staggeredly rouse convex aerobic activated sludge from reunion granulating passage, Yi Jiqi
The water technology unit of the composition such as associated buffer and outlet component, to realize sewage/wastewater aerobic treatment during it is aerobic
Activated sludge enhances organic removal rate from reunion granulating and quick separation of solid and liquid, reduces flco concentration of suspension in water, enters
And improve effluent quality.
Description of the drawings
Fig. 1-present invention process schematic flow sheet
In figure：1- zigzag effluent weirs, 2- top covers, 3- supernatant surge bunkers, 4- supports, 5- separation of solid and liquid storehouse, 6- bubbles-
Activated sludge sorting deflection cone, 7- sludge passages, 8- sludge feeder connections, 9- sludge passage inlets, 10- granulating sludge refluxes
Outlet, 11- device unit water outlets, the sewage-treatment plant of 12- immersion aerobic activated sludge granulating
Device layout drawing in Fig. 2-Aerobic Pond
The sewage-treatment plant top view of Fig. 3-immersion aerobic activated sludge granulating
Specific embodiment
Below in conjunction with the accompanying drawings the present invention will be further described
In sewage disposal process, mud mixed liquid Jing aerations be promoted to spinning fusiformis bubble-activated sludge sorting deflection cone 6,
So that sludge is along device lateral wall, and upwards relative motion, to upper entrance 8, enters that middle part is symmetrical and water after entrance
Two sludge passages 7 of -60 ° of angles at 45 ° are put down, sludge flco is by effects such as centripetal collision, pressure reduction promotion and inertia rollings
Self reunion granulating, the aerobic activated sludge of granulating is back to aerobic life under hydraulic pressure effect from the lower part outlet 10 of sludge passage 7
Change pond, little density sludge Jing sludge passages inlet 9 enters separation of solid and liquid storehouse 5；In separation of solid and liquid storehouse 5, clear liquid Jing supernatants
Surge bunker 3 and zigzag effluent weir 1 and directly water outlet, granulating sludge retention is in separation of solid and liquid storehouse 5；It is collected in separation of solid and liquid storehouse
5 aerobic active granulating sludge is further closely knit in the presence of deadweight, causes the aerobic activity of a part of big density granulating dirty
Mud exits into again aerobic biochemical pool by from the lower part outlet 10 of reunion sludge passage 7, participates in aerobic biochemical reaction.A whole set of submergence
The top of formula aerobic activated sludge granulating apparatus 12 flushes with aerobic biochemical aeration pit level.
The process of the conventional biochemical of table 1 is compared with immersion aerobic activated sludge granulating apparatus-biochemical treatment municipal wastewater
Aerobic biochemical water outlet after the present invention is processed, its COD, BOD and SS handling rate is far above traditional aerobic life
Change activated sludge reactor, effectively lift effluent quality, water outlet reaches GB18918-2002《Urban wastewater treatment firm pollutant is arranged
Put standard》One-level A standard, caters to the development trend that current stage town sewage plant proposes mark transformation, therefore the equipment represents one
New water technology device development trend is planted, meets sustainable development requirement.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, the protection domain that the protection domain of invention should be defined with claim
It is defined.
Claims (6)
1. a kind of immersion aerobic activated sludge granulation process, it is characterised in that the aerobic activated sludge is aerobic by immersion
Activated sludge granulating apparatus granulating, mud mixed liquid Jing aerations are promoted to the spinning fusiformis bubble-activated sludge sorting of granulating apparatus
Deflection cone, cause sludge along device lateral wall upwards relative motion to upper entrance, after entrance enter middle part it is symmetrical
Two sludge passages straight at 45 ° of -60 ° of angles, the aerobic activated sludge of granulating is under hydraulic pressure effect from sludge passage
Lower part outlet is back to aerobic biochemical pool, and little density sludge Jing sludge passages inlet enters separation of solid and liquid storehouse；In separation of solid and liquid
In storehouse, clear liquid Jing supernatants surge bunker and zigzag effluent weir and directly water outlet, granulating sludge retention is in separation of solid and liquid storehouse；Collection
The aerobic active granulating sludge gathered in separation of solid and liquid storehouse is further closely knit in the presence of deadweight, causes a part of big density granulating
Aerobic activated sludge exit into aerobic biochemical pool again by from the outlet of reunion sludge beneath galleries, participate in aerobic biochemical anti-
Should.
2. a kind of immersion aerobic activated sludge granulation process according to claim 1, it is characterised in that the aerobic work
Property sludge granulating apparatus include being located at bottom bubble-activated sludge sorting deflection cone, divided by support connected symmetrical dendrimer on deflection cone
Cloth, straight at two sludge autohemagglutination granulating passages of 45 ° of -60 ° of angles, is separation of solid and liquid storehouse in the middle of two sludge passages, top
Supernatant surge bunker with cover is arranged on sludge passage by support, and zigzag effluent weir is installed in supernatant surge bunker.
3. a kind of immersion aerobic activated sludge granulation process according to claim 1 according to claim 2, its
Be characterised by described bubble-activated sludge sorting deflection cone be triangle deflection cone, circular deflection cone, oval deflection cone,
Spin the one kind in fusiformis deflection cone.
4. a kind of immersion aerobic activated sludge granulation process according to claim 3, it is characterised in that described spinning shuttle
Shape deflection cone spins fusiformis deflection cone for smooth streamline.
5. a kind of immersion aerobic activated sludge granulation process according to claim 2, it is characterised in that described sludge
Passage is smoothed curve staggeredly drum convex.
6. a kind of immersion aerobic activated sludge granulation process according to claim 2, it is characterised in that described sludge
Passage is straight at 50 ° of -55 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159374.3A CN106587337B (en) | 2016-12-15 | 2016-12-15 | A kind of immersion aerobic activated sludge granulation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159374.3A CN106587337B (en) | 2016-12-15 | 2016-12-15 | A kind of immersion aerobic activated sludge granulation process |
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| Publication Number | Publication Date |
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| CN106587337A true CN106587337A (en) | 2017-04-26 |
| CN106587337B CN106587337B (en) | 2019-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512770A (en) * | 2017-10-12 | 2017-12-26 | 喻昌勇 | A kind of sludge concentration multiplier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290887A (en) * | 1998-04-14 | 1999-10-26 | Kurita Water Ind Ltd | Anaerobic treatment apparatus for organic waste water |
| CN2598997Y (en) * | 2003-01-24 | 2004-01-14 | 天津清华德人环境工程有限公司 | Expansion particle sludge bed organic waste water anaerobic reactor |
| CN205709927U (en) * | 2016-04-11 | 2016-11-23 | 西安唯源环保科技有限公司 | A kind of vertical eddy current idetified separation device and high efficient solid and liquid separation granulating fluidized bed |
-
2016
- 2016-12-15 CN CN201611159374.3A patent/CN106587337B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290887A (en) * | 1998-04-14 | 1999-10-26 | Kurita Water Ind Ltd | Anaerobic treatment apparatus for organic waste water |
| CN2598997Y (en) * | 2003-01-24 | 2004-01-14 | 天津清华德人环境工程有限公司 | Expansion particle sludge bed organic waste water anaerobic reactor |
| CN205709927U (en) * | 2016-04-11 | 2016-11-23 | 西安唯源环保科技有限公司 | A kind of vertical eddy current idetified separation device and high efficient solid and liquid separation granulating fluidized bed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512770A (en) * | 2017-10-12 | 2017-12-26 | 喻昌勇 | A kind of sludge concentration multiplier |
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| CN106587337B (en) | 2019-06-25 |
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