CN1167090A - Vertical retained aeration sewage treatment process and device - Google Patents
Vertical retained aeration sewage treatment process and device Download PDFInfo
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- CN1167090A CN1167090A CN96107832A CN96107832A CN1167090A CN 1167090 A CN1167090 A CN 1167090A CN 96107832 A CN96107832 A CN 96107832A CN 96107832 A CN96107832 A CN 96107832A CN 1167090 A CN1167090 A CN 1167090A
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- aeration
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- 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
Abstract
The present invention relates to a vertical restricted aeration sewage treatment process and equipment. It is composed of mixing tank, aeration tank, flocculation tank and sedimentation tank, in which aeration restrictor is placed in vertical channel of the aeration tank, and the aeration heads are uniformly distributed all over the bottom surface of the aeration tank; a multi-layer grid is placed in the channel of the flocculation tank, and the interior of the sedimentation tank is equipped with a close clearance tilted-plate unit. The sewage and return sludge are fed into mixing tank, mixed and fed into aeration tank to implement restricted aeration through the vertica, channel, then fed into flocculation tank and flocculated and sedimentated through the close clearance tilted-plate unit in the sedimentation tank so as to implement sewage treatment. Said invention can greatly reduce aeration time and volume of aeration tank, and can reduce energy consumption.
Description
The present invention relates to sewage disposal technology and equipment.
Aeration method in the sewage disposal at present, driven mechanics viewpoint has been seen significant drawback: first aeration is inhomogeneous, because aeration head is not to lay along the bottom, aeration tank comprehensively, but is laid in some zones; Do not lay the sewage in aeration head zone, be to take the aeration zone to by the circulating water flow that the aeration bubble causes to carry out aeration, perhaps by the diffusion of circulating water flow, the water body of aeration aerating is diffused into does not have cloth aeration head zone, for these regional sewage biochemical reactions provide dissolved oxygen.Current certainly exist the dead band under this flow state, and the water in dead band is difficult to be brought to main flow area, and the water of the gas that exposed to the sun also is difficult to be diffused into the dead band.Also handle well for sewage, will increase aeration time, make sewage residence time lengthening in equipment, cause treatment facility bulky, and it is too high to make capital construction establish investment the dead band.It two is can grow up very soon from the small bubbles that micro porous aeration head gushes out, and makes gas residence time of ducking in drink short, causes the rate of transform of oxygen in water low excessively, and the dynamic efficiency of aeration is very low.Energy consumption height so not only, and seriously influence wastewater treatment efficiency.
The objective of the invention is to propose a kind of vertical well-distributed aeration sewage treatment process and device, overcome the shortcoming in the present sewage disposal, eliminated the aeration dead band and limit bubble and grow up very soon, aeration time and aeration tank volume have been reduced significantly, improve the processing efficiency of sewage, reduce investment outlay significantly, cut down the consumption of energy.
The present invention is on the basis of existing sewage aeration treatment technology, before sewage enters the aeration tank, earlier in mixing tank with the returned sluge thorough mixing; Be divided into the multi-stage vertical gallery by dividing plate in the aeration tank, its bottom is covered with aeration head, sewage enters the flocculation basin flocculation behind the abundant aeration in aeration tank, enter precipitation in the settling tank at last, supernatant liquor is discharged, and part mud reflux cycle is used, and it is characterized in that: 1, returned sluge and sewage enter mixing tank 1 after mixing, multi-layer porous plate effect in mixing tank 1 makes returned sluge disperse to obtain full and uniform the mixing with sewage; Enter aeration tank 2 through mixed sewage, the pond inner-use clapboard is separated into the multi-stage vertical gallery, and the bottom, pond evenly is covered with aeration head 7, and sewage carries out retained aeration through the vertical multibarrel aerated limited device 8 in the vertical gallery to sewage; Sewage behind the aeration enters flocculation basin 3, is furnished with multilayer graticule mesh 6 in the gallery of flocculation basin 3, quickens flocculation process; Sewage after the flocculation enters in the settling tank 4 at last, is provided with little spacing sloping plate deposition equipment 5 in the settling tank, and accelerate sludge floc particle precipitation is finished sewage disposal; 2, the mixing tank 1 of vertical retained aeration waste disposal plant is formed by being provided with multi-layer porous plate in body and the pipe, mixing tank 1 connects with aeration tank 2, aeration tank 2 inner-use clapboards are separated into the multi-stage vertical gallery, be provided with vertical multitube aerated limited device 8 in the vertical gallery, evenly be covered with aeration head 7 on the bottom surface of aeration tank 2, aeration tank 2 links with flocculation basin 3, is provided with the multilayer graticule mesh in the gallery of flocculation basin 3, flocculation basin 3 connects with settling tank 4, is furnished with little spacing sloping plate deposition equipment 5 in the pond.The swash plate spacing of its medium and small spacing sloping plate deposition equipment 5 is the 10-30 millimeter.
Principle of work of the present invention:
Mixing tank:
Mixing tank 1 is by being made up of multi-layer porous plate in pipe and the pipe, and it utilizes the inertia effect generation intensive turbulent shear force of current by multi-layer porous plate, can broken returned sluge in the active sludge flco, make it to become small scale high-specific surface area state; Utilize the inertia effect of via hole current, finish tiny active sludge flco and mix with the macroscopic view of sewage; Utilize the inertia effect of the micro-vortex of via hole current formation, finish the mixing and diffusion (submicroscopic mix and diffusion) of active sludge to the thin portion of water body.
The aeration head that evenly is covered with micropore along the bottom of aeration tank:
Traditional aeration method, aeration head is all laid in the local area, aeration tank, therefore have the aeration dead band, the circulating water flow that the sewage of this part need lean on the aeration bubble flow to cause takes the aeration zone to, or the aeration sewage that fills peroxide has been diffused into the aeration dead band and provides biochemical required dissolved oxygen for it.So just increase aeration time greatly, increased the aeration tank volume widely, also increased aeration rate greatly.Owing to all be covered with aeration head 7 along the aeration tank inner bottom part, just can eliminate dead band in the aeration tank, formed uniform aeration, can save aeration time and aeration tank volume significantly.
Aerated limited device:
Aerated limited device is to utilize filler the flow passage of the vertical gallery of aeration tank to be become the vertical passageway of a lot of small scales.Rising bubble stream is in uphill process, make current produce disturbance, and the disturbance of current is subjected to the restriction of aerated limited device flow passage yardstick, produce the effect of intensive turbulent shear, this effect has not only limited bubble scale and has grown up, also limited the active sludge flco and grown up, made them all be in the high-ratio surface cumuliformis.Because fluid-space yardstick reduces, wherein the high strength of current generation is sheared, add the dynamic action that micro-bubble rises, in aerated limited device, formed a high proportion of micro-vortex, improve submicroscopic rate of mass transfer in the aerated limited device significantly owing to the inertial effect of micro-vortex, improved the transfer rate of oxygen and the speed of biological process significantly.
Graticule mesh in the flocculation basin gallery:
Utilize the net current by the inertial effect that the graticule mesh velocity variations produces, utilized the inertial effect of the micro-vortex that graticule mesh produces later, increased active sludge flco collision probability significantly, quickened the process of its flocculation greatly.
Little spacing sloping plate deposition equipment:
Little spacing sloping plate deposition equipment precipitation distance is short, littler mud floc particle is precipitated, and little spacing swash plate reduces fluid-space yardstick, has increased viscous force and mass force ratio, suppress the turbulent flow pulsation, helped small scale mud flco precipitation; Little spacing swash plate increases the head loss by current, makes the even favourable sedimentation of settling tank water distribution; Little spacing swash plate spoil disposal performance is good, does not produce deposition between swash plate.Accelerate precipitation process.
In sewage treatment process, part mud reflux with pass through preliminary sedimentation after sewage enter mixing tank 1 after mixing, after fully mixed, sewage enters in the aeration tank 2, at first pass through the aerated limited device 8 in the vertical gallery, owing to produce intensive turbulent flow shearing action, limited bubble scale grow up and the active sludge flco grow up, make them all be in the high-specific surface area state, the vertical gallery bottom surface that adds the aeration tank evenly is covered with aeration head, make sewage equal abundant aeration in vertical gallery, overcome and pass by aeration dead band in the general aeration tank.Sewage behind aeration enters in the flocculation basin, and the multi-layer net in the flocculation gallery in it quickens flocculation process.Sewage enters settling tank 4 at last, and little spacing sloping plate deposition equipment in settling tank 4 precipitates littler mud floc particle, finishes sewage disposal.
The present invention compared with prior art has following advantage:
One, owing to utilize the mixing tank of tubular type porous plate, the high intensity turbulent shearing force of the current that cause makes returnedactivatedsludge be broken up into the tiny active sludge flco of small scale and carries out macroscopic view with sewage and mix, and finishes its submicroscopic mixing and diffusion.
Two, air-flow is subjected to the wall constraint of aerated limited device in vertical gallery, realizes retained aeration, overcomes present free aeration shortcoming.In the aerated limited device, bubble rises disturbance to current much larger than the disturbance of free aeration to current, can increase considerably the transfer rate of rate of mass transfer and oxygen, has reduced energy consumption, and its energy consumption is about 1/10th of traditional technology.The bottom surface, aeration tank evenly is covered with aeration head, make current equal energy aeration in vertical gallery, overcome the aeration dead band in the past aeration tank, form uniform aeration, can save aeration time and aeration tank volume significantly, its dwell time of sewage only is the 1/4-1/6 of traditional technology.
Three, the flocculation gallery is furnished with the multilayer graticule mesh, can increase active sludge flco collision probability significantly, quickens its flocculation process.
Four, little spacing sloping plate deposition equipment can make littler mud floc particle precipitation, quickens settlement of sewage efficient.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is a general arrangement structure iron of the present invention;
Fig. 3 is a mixing tank sectional view of the present invention.
Embodiments of the invention:
Vertical retained aeration sewage treatment process and device, be on the basis of existing water aeration treatment process and device, before sewage entered the aeration tank, sewage and partial reflux mud converged the back and mix through mixing tank earlier, enter the aeration tank after, earlier through vertical gallery, be furnished with aerated limited device and aeration tank bottom and all be covered with aeration head in gallery, make the full and uniform aeration of sewage, the sewage behind the aeration enters flocculation basin 3, multi-layer net in this flocculation gallery quickens flocculation.Enter settling tank at last,, can make small flco precipitation, finish sewage disposal through little spacing swash plate equipment.Wherein mixing tank 1 is a tubular type, is provided with multi-layer porous plate in the pipe, manages available steel pipe, plastics, glass reinforced plastic and makes, and porous plate processes with steel, plastics, glass reinforced plastic etc.; Aeration tank 2 can be made with steel plate, concrete according to the needs of sewage disposal, and its pond inner-use clapboard is separated into the multi-stage vertical gallery.Flocculation basin 3 usefulness steel plates and concrete are made, and also can join together with the aeration tank, are provided with the graticule mesh 6 that multilayer is made with steel or plastic or other material in the gallery of its flocculation basin 3; Aerated limited device 8 is the combine vertical passageway of a plurality of small scales of constituting of the plastics sheet of available definite shape as requested, or the vertical passageway of a plurality of small scales of forming with plastic tube bundle.Settling tank 4 can be made with steel plate or concrete, and little spacing swash plate equipment is to synthesize with plastics sheet and by the rib groups that plastic irregular profile constitutes, and spacing is at the sloping plate deposition equipment of 10-30 millimeter.Aeration head 7 is selected part for use.
Mixing tank 1 is connected with aeration tank 2, be provided with aerated limited device 8 in the vertical gallery in the pond, the bottom surface, pond evenly is covered with aeration head 7, lay grid 6 in the gallery of flocculation basin 4, flocculation basin 4 joins with aeration tank 2, settling tank 4 respectively, lay little spacing sloping plate deposition equipment 5 in the settling tank 4, settling tank links with the preceding pipeline of pipeline and mixing tank, composition vertical retained aeration treatment unit.Sewage and backflow part mud enter mixing tank 1 simultaneously, mix, vertical gallery carries out aeration to sewage through the aeration tank, enter flocculation basin again and flocculate, enter settling tank at last, precipitate through little spacing sloping plate deposition equipment, supernatant liquor is discharged, and discharge mud, part mud reflux cycle is used, and finishes sewage disposal.
Claims (3)
1, a kind of vertical retained aeration sewage treatment process, sewage is through first post precipitation, enter and carry out aeration in the aeration tank, aeration head is arranged in the aeration tank, and at last through precipitation, supernatant liquor is discharged, part mud reflux cycle is used, it is characterized in that: a, returned sluge and sewage enter mixing tank (1) after mixing, and the multi-layer porous plate effect in mixing tank (1) makes returned sluge disperse to obtain full and uniform the mixing with sewage; B, enter aeration tank (2) through mixed sewage, the pond inner-use clapboard is separated into the multi-stage vertical gallery, and the bottom, pond evenly is covered with aeration head (7), and sewage carries out retained aeration through the vertical multibarrel aerated limited device (8) in the vertical gallery to sewage; Sewage behind c, the aeration enters flocculation basin (3), is furnished with multilayer graticule mesh (6) in the gallery of flocculation basin (3), quickens flocculation process; Sewage after d, the flocculation enters in the settling tank (4) at last, is provided with little spacing sloping plate deposition equipment (5) in the settling tank, and accelerate sludge floc particle precipitation is finished sewage disposal.
2, a kind of vertical retained aeration waste disposal plant, comprise settling tank, the aeration tank, aeration head, it is characterized in that: mixing tank (1) is formed by being provided with multi-layer porous plate in body and the pipe, mixing tank (1) connects with aeration tank (2), aeration tank (2) inner-use clapboard is separated into the multi-stage vertical gallery, be provided with vertical multitube aerated limited device (8) in the vertical gallery, evenly be covered with aeration head (7) on the bottom surface of aeration tank (2), aeration tank (2) links with flocculation basin (3), be furnished with the multilayer graticule mesh in the gallery of flocculation basin (3), flocculation basin (3) connects with settling tank (4), is furnished with little spacing sloping plate deposition equipment (5) in the pond, forms the vertical retained aeration waste disposal plant.
3, vertical retained aeration waste disposal plant according to claim 2 is characterized in that: said little spacing sloping plate deposition equipment (5), the spacing of its swash plate are the 10-30 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96107832A CN1058946C (en) | 1996-05-31 | 1996-05-31 | Vertical retained aeration sewage treatment process and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96107832A CN1058946C (en) | 1996-05-31 | 1996-05-31 | Vertical retained aeration sewage treatment process and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1167090A true CN1167090A (en) | 1997-12-10 |
| CN1058946C CN1058946C (en) | 2000-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96107832A Expired - Lifetime CN1058946C (en) | 1996-05-31 | 1996-05-31 | Vertical retained aeration sewage treatment process and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058946C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985384A (en) * | 2010-11-30 | 2011-03-16 | 哈尔滨理工大学 | Method for treating sewage by utilizing grid aeration tank |
| CN102614687A (en) * | 2012-04-07 | 2012-08-01 | 唐山国华科技国际工程有限公司 | Flotation feed desliming pool |
| CN103800926A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Ethylene oxide sterilizing and exhaust gas zero-emission treatment system |
| CN103801190A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Biodegradation-based epoxy ethane waste gas treatment method and system |
| CN104386808A (en) * | 2014-11-28 | 2015-03-04 | 武汉理工大学 | Intensified flocculation-aerobic nitrification treatment system aiming at low-ammonia nitrogen water source |
| CN112591930A (en) * | 2020-11-19 | 2021-04-02 | 耿洪鑫 | Sewage treatment plant based on modified activated carbon biological filter |
| CN117658389A (en) * | 2024-01-29 | 2024-03-08 | 成都嘉德数源环保科技有限公司 | Highland high-cold sewage treatment method |
| CN117658389B (en) * | 2024-01-29 | 2024-04-26 | 成都嘉德数源环保科技有限公司 | Highland high-cold sewage treatment method |
-
1996
- 1996-05-31 CN CN96107832A patent/CN1058946C/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985384A (en) * | 2010-11-30 | 2011-03-16 | 哈尔滨理工大学 | Method for treating sewage by utilizing grid aeration tank |
| CN102614687A (en) * | 2012-04-07 | 2012-08-01 | 唐山国华科技国际工程有限公司 | Flotation feed desliming pool |
| CN102614687B (en) * | 2012-04-07 | 2014-04-02 | 唐山国华科技国际工程有限公司 | Flotation feed desliming pool |
| CN103800926A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Ethylene oxide sterilizing and exhaust gas zero-emission treatment system |
| CN103801190A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Biodegradation-based epoxy ethane waste gas treatment method and system |
| CN104386808A (en) * | 2014-11-28 | 2015-03-04 | 武汉理工大学 | Intensified flocculation-aerobic nitrification treatment system aiming at low-ammonia nitrogen water source |
| CN112591930A (en) * | 2020-11-19 | 2021-04-02 | 耿洪鑫 | Sewage treatment plant based on modified activated carbon biological filter |
| CN117658389A (en) * | 2024-01-29 | 2024-03-08 | 成都嘉德数源环保科技有限公司 | Highland high-cold sewage treatment method |
| CN117658389B (en) * | 2024-01-29 | 2024-04-26 | 成都嘉德数源环保科技有限公司 | Highland high-cold sewage treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1058946C (en) | 2000-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 96107832.4 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 96213210.1 utility model patent to be given up, and in the 16 volume of the 48 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081205 Address after: No. 73, Huashan Road, Nangang District, Harbin, Heilongjiang Patentee after: Harbin Multi-phase Tech Co., Ltd. Address before: No. 73, Huashan Road, Nangang District, Harbin, Heilongjiang Patentee before: Wang Shaowen |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Multi-phase Tech Co., Ltd. Assignor: Wang Shaowen|Wang Miao Contract fulfillment period: 2008.10.8 to 2014.10.8 contract change Contract record no.: 2008230000058 Denomination of invention: Vertical retained aeration sewage treatment process and device Granted publication date: 20001028 License type: Exclusive license Record date: 20081013 |
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| ASS | Succession or assignment of patent right |
Owner name: HARBIN CITY MULTI-PHASE WATER TREATMENT TECHNOLOGY Free format text: FORMER OWNER: WANG SHAOWEN Effective date: 20081205 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.8 TO 2014.10.8; CHANGE OF CONTRACT Name of requester: HARBIN CITY MULTI-PHASE WATER TREATMENT TECHNOLOGY Effective date: 20081013 |
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| CX01 | Expiry of patent term |
Granted publication date: 20001129 |
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| EXPY | Termination of patent right or utility model |