CN107485922A - A kind of sedimentation and filtration ditch - Google Patents
A kind of sedimentation and filtration ditch Download PDFInfo
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- CN107485922A CN107485922A CN201710763853.4A CN201710763853A CN107485922A CN 107485922 A CN107485922 A CN 107485922A CN 201710763853 A CN201710763853 A CN 201710763853A CN 107485922 A CN107485922 A CN 107485922A
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- Prior art keywords
- sedimentation
- filtering ponds
- filtration
- filtering
- filtration ditch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to plumbing field, and in particular to a kind of sedimentation and filtration ditch.Sedimentation and filtration ditch of the present invention includes sedimentation basin, filtering ponds, both described sedimentation basin and filtering ponds are connected together, and sedimentation basin is higher than filtering ponds, make bulky grain solid material in settling zone quick separating, finely ground particle substance is isolated by filtration, and improves the efficiency of oil removal.Compared with other method, advantageous effects are the present invention：The advantages of sedimentation and filtration ditch of the present invention, is by precipitating and filtering two processes, improve effluent quality and go the efficiency of oil removal, three discharge pipelines are provided with filtering ponds, improve the discharge rate of sludge, the design of filtering ponds bending reduces washing water quantity, the effective area of filtering is also improved simultaneously, is met requirement, is worthy to be popularized and uses.
Description
Technical field
The invention belongs to plumbing field, and in particular to a kind of sedimentation and filtration ditch.
Background technology
With raising of the country to sewage treatment plant's discharge standard requirement, most newly-built sewage treatment plant will reach one-level
A discharge standard, many built sewage treatment plants also want upgrading, reach one-level A discharge standard, therefore build in design
If advanced treatment of wastewater facility is directed to during, at present, water outlet warp of the advanced treatment of wastewater generally use to secondary sedimentation tank
After dosing coagulating sedimentation and filtering, the pollutant such as further suspension removed in sewage, phosphorus, after reaching one-level emission standard A
Discharge.Advanced treatment of wastewater coagulating sedimentation filtration system of the prior art is mainly made up of coagulative precipitation tank and filter tank etc..Its
In, coagulative precipitation tank generally has dosing mixed zone, flocculation zone, settling zone, mud scraper, sludge recirculation system etc., is by adding
Coagulant is sufficiently mixed with the organic pollution materials in sewage to be contacted and and then by the place of its mud-water separation.Dosing mixed zone,
The effect of flocculation zone is to make coagulant be sufficiently mixed with organic pollution materials to contact, and forms cotton-shaped particle；The effect of settling zone is
Make mud-water separation, sewage is discharged by effluent weir after processing；The effect of mud scraper is that the sludge for making precipitation is effectively discharged；Sludge
The effect of return-flow system is the effect that the sludge reflux for discharging part contacts to reaction zone, raising sludge mixing.Commonly use in filter tank
It is filtering cloth filtering pool and sand filter, because filtering cloth filtering pool floor space is small, the loss of flood peak is few, application is more.Filtering cloth filtering pool is by filter cloth
Disk and backwashing system composition, the effect of filter cloth disk is that sewage is filtered, and the effect of backwashing system is removed on filter cloth
Residue, keep the cleaning of filter cloth.The polluter such as SS, P is equal in sewage after the processing of dosing coagulating sedimentation filtration system
One-level emission standard A can be reached.In traditional wastewater coagulating sedimentation filtration system, coagulating sedimentation and filtering are to be in 2 not
With structures, inside each pond and between pipe duct or aperture connection caused by the loss of flood peak typically can make sewage more than 2 meters
Treatment plant's gross head loss increase is a lot, in the project of upgrading and rebuilding of particularly existing sewage treatment plant, because original tail water is arranged
It is few to put reserved head, generally requires 2 liftings., it is necessary to partial sludge by discharge in the wastewater coagulating sedimentation pond of routine
Flocculation zone is flow to through blowback, to improve sludge concentration in pond, ensures sludge settling effect, effluent weir there will be certain free-electron model
Highly, prevent subsequent treatment or discharge from influenceing sedimentation effect.Routine filtering cloth filtering pool in, filter type exceptionally enter in go out and
Inside enter outgoing 2 kinds, filter cloth backwash is sucked by vacuum due to suction nozzle outer rim and filter accordingly using two kinds of vacuum suction and hydrodynamic cleaning
The sealing of cloth is more intractable, causes backwash water consumption larger, and hydrodynamic cleaning requirement pause when rinsing is rinsed the mistake of part
Filter, reduces filtering effective area.Several situations can cause cost of sewage disposal increase, it is necessary to there is certain occupation of land face above
Product, especially in existing sewage treatment plant's upgrading, Tail water reuse nervous to some lands used reserves the few project of head,
Traditional more difficult adaptation of wastewater coagulating sedimentation filtration system.Therefore, those skilled in the art, which is directed to developing a kind of sewage, sinks
Shallow lake filtering ponds, the loss of flood peak is small, the discharge rate of sludge is low, the effective processing volume in pond is high and is easy to the purpose of operational management.
The content of the invention
The technical problems to be solved by the invention：For at present precipitation filter process in energy consumption and backwash water consumption compared with
A kind of the problem of height, the discharge rate of sludge is low, and the effective processing volume in pond is low, and in particular to sedimentation and filtration ditch.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of sedimentation and filtration ditch, including both sedimentation basin 12, filtering ponds 2, the sedimentation basin and filtering ponds are connected together, and sink
Shallow lake pond is higher than filtering ponds, bulky grain solid material is isolated by filtration in settling zone quick separating, finely ground particle substance, improves
The efficiency of oil removal is gone, sedimentation basin 2 sets the ﹑ swash plates 9 of 8 ﹑ sludge buckets of distribution channel 11.Filtering ponds 2 set filtration system and recoil
Regenerative system is washed, the top of filtering ponds is provided with filter grid 1, filter grid slant setting, the interior filling filter medium of filtering ponds, filtering ponds
2 bottoms set the ﹑ backwash tubes 6 of 4 ﹑ discharge pipelines of drainpipe 7 and backwash shower nozzle 5.
The pool wall of the sedimentation basin 12 is higher 0.6 ~ 0.8m than the pool wall being connected with filtering ponds 2.
The sedimentation and filtration ditch can realize that bulky grain solid material passed through in settling zone quick separating, finely ground particle substance
Filter separation.
Filter medium 3 in the filtering ponds 2 be Gui Zao Tu ﹑ Shi Ying Sha ﹑ activated carbons any one.
The top of the filtering ponds 2 is provided with filter grid 1, and filter grid 1 is placed in the channel that sewage flows through, and angle of inclination is 30 ~
60o。
The bottom of filtering ponds 2 sets the ﹑ backwash tubes 6 of 4 ﹑ discharge pipelines of drainpipe 7 and backwash shower nozzle 5, backwashes shower nozzle 5
Between spacing be 0.3 ~ 0.5m, backwashing pressure is controlled in 2 ~ 4kg/cm2。
Described to prevent sludge blockage in filter medium 3, in filter medium 3 and top is respectively provided with discharge pipeline 7, prevents filtering to be situated between
Sludge blockage in matter.
Compared with other method, advantageous effects are the present invention：The advantages of sedimentation and filtration ditch of the present invention, is by heavy
Form sediment and filter two processes, improve effluent quality and go the efficiency of oil removal, three discharge pipelines are provided with filtering ponds, improve
The discharge rate of sludge, the design of filtering ponds bending reduces washing water quantity, while also improve the effective area of filtering.
Brief description of the drawings
Fig. 1 is a kind of structural representation of sedimentation and filtration ditch of the present invention；
Wherein, 1 ﹑ filter grids；2 ﹑ filtering ponds；3 ﹑ filter mediums；4 ﹑ drainpipes；5 ﹑ backwash shower nozzle；
6 ﹑ backwash tubes；7 ﹑ discharge pipelines；8 ﹑ distribution channels；9 ﹑ swash plates；10 ﹑ spoil disposal plates；11 ﹑ sludge buckets；
12 ﹑ sedimentation basins；13 ﹑ circular orifices；14 ﹑ choked flow walls；15 ﹑ water legs；16th, spoiler.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the embodiment of the present invention is carried out it is clear, completely retouch
State, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the present invention
In embodiment, all other reality that those skilled in the art is obtained on the premise of creative work is not made
Example is applied, belongs to protection scope of the present invention.
The present invention is made up of sedimentation basin 12 and filtering ponds 2, and wherein sedimentation basin 12 is higher by 0.6 ~ 0.8m than filtering ponds 2.
The top of filtering ponds is covered by filter grid 1, and filter grid 1 is inclined in the channel that sewage flows through, and angle of inclination is 30 ~
60o, filter medium 3, the top of filter medium 3 and filter medium are loaded in filtering ponds 2 according to the different requirements of effluent quality
In discharge pipeline 7 be connected, prevent sludge blockage, be uniformly distributed below filter medium 3 backwash shower nozzle 5, backwash spray
Spacing between first 5 is 0.3 ~ 0.5m, and backwashing pump carries out filter medium 3 by backwash tube 6 and rinses regeneration, filtering ponds 2
Bottom fix a drainpipe 4 with discharge pipeline 7, the filter medium be Gui Zao Tu ﹑ Shi Ying Sha ﹑ activated carbons any one.
Sedimentation basin 12 is first intake from distribution channel 8, and distribution channel 8 installs choked flow wall 14 below, prevents solid particle from entering, and is sunk
The bottom in shallow lake pond 12 is distributed with sludge bucket 11, mud plate 10 of being set a raft going in sludge bucket 11, the top installation spoiler 16 of sludge bucket with tiltedly
Plate 9, the right part of swash plate have a circular orifices 13, and water is flow in water leg from circular orifices.
During present invention work, current enter from the distribution channel 8 of sedimentation basin 12, flow through choked flow wall 14, solid particle is intercepted
To outside choked flow wall 14, water is entered in base sludge bucket 11, and the spoil disposal plate 10 in sludge bucket 11 is extruded sludge, and sludge squeezes
It is pressed in sludge bucket 11, it is waterborne to rise to spoiler 16 and swash plate 9, more fine particles are intercepted, water is flowed through to the top of swash plate 9 again
Entered from circular orifices 13 in water leg 15, the water of discharge is directly entered filtering ponds 2 in water leg 15, and water first flow to filter grid 1
Middle removal SS, water adsorb excessive fine particle in filter medium 3 is entered, and last water is arranged from drainpipe 4
Go out, sludge is discharged from sludge pipe 7, and to prevent sludge blockage in filter medium 3, in filter medium 3 and top is respectively provided with spoil disposal
Pipe 7, when the filtering water flux of filtering ponds 2 declines, startup backwashing pump is filtered through backwash tube 6 by backwashing shower nozzle 5
Medium 3 rinses regeneration, and backwashing pressure is controlled in 2 ~ 4kg/cm2。
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction to the spirit and scope of the invention, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment, belong to the scope that the present invention is protected.
Claims (8)
1. a kind of sedimentation and filtration ditch, including filtering ponds（2）, sedimentation basin（12）, it is characterised in that both sedimentation basin and filtering ponds phase
Link together, sedimentation basin（2）Distribution channel is set（8）﹑ sludge buckets（11）﹑ swash plates（9）.
2. filtering ponds（2）Filtration system and backwash regenerative system are set, and the top of filtering ponds is provided with filter grid（1）, filter grid
Slant setting, the interior filling filter medium of filtering ponds, filtering ponds（2）Bottom sets drainpipe（4）﹑ discharge pipelines（7）﹑ backwash tubes
（6）And backwash shower nozzle（5）.
3. sedimentation and filtration ditch according to claim 1, it is characterised in that sedimentation basin（12）Pool wall ratio and filtering ponds（2）
High 0.6 ~ the 0.8m of pool wall being connected.
4. sedimentation and filtration ditch according to claim 1, it is characterised in that sedimentation and filtration ditch can realize bulky grain
Solid matter is isolated by filtration in settling zone quick separating, finely ground particle substance.
5. sedimentation and filtration ditch according to claim 1, it is characterised in that filtering ponds（2）Interior filter medium
（3）Be Gui Zao Tu ﹑ Shi Ying Sha ﹑ activated carbons any one.
6. sedimentation and filtration ditch according to claim 1, it is characterised in that filtering ponds（2）Top be provided with
Grating（1）, filter grid（1）The channel that sewage flows through is placed in, angle of inclination is 30 ~ 60o.
7. sedimentation and filtration ditch according to claim 1, it is characterised in that filtering ponds（2）Bottom sets draining
Pipe（4）﹑ discharge pipelines（7）﹑ backwash tubes（6）And backwash shower nozzle（5）, backwash shower nozzle（5）Between spacing for 0.3 ~
0.5m, backwashing pressure are controlled in 2 ~ 4kg/cm2.
8. sedimentation and filtration ditch according to claim 1, it is characterised in that prevent filter medium（3）Middle sludge blockage, filtering
Medium（3）In and top be respectively provided with discharge pipeline（7）, prevent sludge blockage in filter medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763853.4A CN107485922A (en) | 2017-08-30 | 2017-08-30 | A kind of sedimentation and filtration ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763853.4A CN107485922A (en) | 2017-08-30 | 2017-08-30 | A kind of sedimentation and filtration ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107485922A true CN107485922A (en) | 2017-12-19 |
Family
ID=60650979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763853.4A Pending CN107485922A (en) | 2017-08-30 | 2017-08-30 | A kind of sedimentation and filtration ditch |
Country Status (1)
| Country | Link |
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| CN (1) | CN107485922A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408937A (en) * | 2018-03-22 | 2018-08-17 | 天津市众源环保工程有限公司 | A kind of small ship type sedimentation tank device for treating sewage and method |
| CN110054268A (en) * | 2019-04-11 | 2019-07-26 | 湖南锦佳环保科技有限公司 | A kind of sewage disposal system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060000542A (en) * | 2004-06-29 | 2006-01-06 | 한국수자원공사 | A non-powered water purifying plant |
| CN201245484Y (en) * | 2008-05-08 | 2009-05-27 | 广州市盾建地下工程有限公司 | Integrated sewage purification processing unit for architectural engineering |
| CN204185346U (en) * | 2014-11-07 | 2015-03-04 | 公霞 | A kind of small-sized sewage treating system |
-
2017
- 2017-08-30 CN CN201710763853.4A patent/CN107485922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060000542A (en) * | 2004-06-29 | 2006-01-06 | 한국수자원공사 | A non-powered water purifying plant |
| CN201245484Y (en) * | 2008-05-08 | 2009-05-27 | 广州市盾建地下工程有限公司 | Integrated sewage purification processing unit for architectural engineering |
| CN204185346U (en) * | 2014-11-07 | 2015-03-04 | 公霞 | A kind of small-sized sewage treating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408937A (en) * | 2018-03-22 | 2018-08-17 | 天津市众源环保工程有限公司 | A kind of small ship type sedimentation tank device for treating sewage and method |
| CN110054268A (en) * | 2019-04-11 | 2019-07-26 | 湖南锦佳环保科技有限公司 | A kind of sewage disposal system |
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Application publication date: 20171219 |
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| RJ01 | Rejection of invention patent application after publication |