CN207608393U - A kind of upstream integral type nitration denitrification biological aerated filter - Google Patents
A kind of upstream integral type nitration denitrification biological aerated filter Download PDFInfo
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- CN207608393U CN207608393U CN201721587890.6U CN201721587890U CN207608393U CN 207608393 U CN207608393 U CN 207608393U CN 201721587890 U CN201721587890 U CN 201721587890U CN 207608393 U CN207608393 U CN 207608393U
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- anaerobism
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Abstract
The utility model discloses a kind of upper integral type nitration denitrification biological aerated filter, including it is superposed go out water treatment unit, the biofilter processing unit positioned at middle part and the cloth water treatment unit positioned at bottom；Biofilter processing unit includes mainly anaerobism workshop section and aerobic stage, has middle aqueous layer between two workshop sections；Water distribution gas distribution orifice plate is equipped with below aerobic stage, middle aqueous layer is equipped with aeration disk, and aeration disk is connect with air inlet pipe；Middle aqueous layer lower end is anaerobism workshop section, and supporting layer is equipped with below anaerobism workshop section, is water distribution orifice plate below supporting layer；By being mainly made of anaerobism packing layer, aerobic stage is mainly made of aerobic packing layer for anaerobism workshop section；The utility model is combined using anaerobic-aerobic biological treatment, anaerobism is decomposed for pre-denitrification and denitrogenation and organic matter, aerobic for nitrification and mineralising organic matter, while being back to anaerobism workshop section equipped with aerobic stage, to be removed while realization efficiently using carbon source and ammonia nitrogen and nitrate nitrogen.
Description
Technical field
The utility model belongs to technical field of sewage, and in particular to a kind of upstream integral type nitration denitrification biological filter
Pond.
Background technology
Biological aerated filter (Biological Aerated Filter, BAF) is as a kind of efficient, simple and low at present
The biologic treating technique of energy consumption, has been widely used.Traditional BAF is additional in order to reach nitration denitrification effect needs
Carbon source and acid-base accommodation, this is undoubtedly the increase in operating cost.In recent years, come frequently with the method for two-stage BAF in engineering practice
Improve the ability of its nitration denitrification, wherein Prepositive denitrification BAF techniques can handle organic loading impact, effluent quality compared with
It is good.In conjunction with the principle of Prepositive denitrification, the present invention improves the effect of nitration denitrification using integral type BAF, simple with flow,
It is compact-sized, of low cost, management is convenient, effluent quality is good, it is applied widely etc. a little.
Utility model content
The purpose of this utility model is to provide upper integral type nitration denitrification biofilter nitrogen rejection facilitys, by passing
The improvement for two-stage Prepositive denitrification BAF techniques of uniting realizes that nitration denitrification, simplification of flowsheet reduce capital construction in single-stage BAF
Expense and operating cost.
The purpose of this utility model is achieved through the following technical solutions：
A kind of upstream integral type nitration denitrification biological aerated filter, is at column structure, including superposed water outlet
Manage unit, the biofilter processing unit positioned at middle part and the cloth water treatment unit positioned at bottom；
The water treatment unit mainly by downflow weir and goes out drainage facility and constitutes, and downflow weir is higher than drainage facility, goes out drainage facility
If there are one apopores；Apopore is connected to out water tank by drainpipe, goes out water tank and is connect with outlet pipe；
The biofilter processing unit includes mainly anaerobism workshop section and aerobic stage, has middle aqueous layer between two workshop sections；
Water distribution gas distribution orifice plate is equipped with below aerobic stage, middle aqueous layer is equipped with aeration disk, and aeration disk is connect with air inlet pipe；Intermediate water
Layer lower end is anaerobism workshop section, and supporting layer is equipped with below anaerobism workshop section, is water distribution orifice plate below supporting layer；Anaerobism workshop section by mainly by
Anaerobism packing layer forms, and the height of anaerobism packing layer is 0.5~0.6m；The anaerobism packing layer of anaerobism workshop section selects light ceramic,
Grain size is 4~6mm；Aerobic stage is mainly made of aerobic packing layer, and the height of aerobic packing layer is 0.5~0.6m, aerobic to fill out
It is 8~10mm that the bed of material, which selects polyethylene spheric granules, grain size,；Anaerobism workshop section and aerobic stage upper end are connect with backwash tube；
Backwash tube connects centrifugal pump, and centrifugal pump is connect with water tank is gone out；
The cloth water treatment unit includes water inlet pipe, water inlet disk, inclined plate, blow-down pipe and cylinder；It is equipped in the middle part of cylinder
Water inlet disk, water inlet disk are connect with water inlet pipe；Go out water tank and water inlet pipe is also connected by return duct；Cylinder body bottom is equipped with oblique
Plate, inclined plate connect blow-down pipe.
To further realize the utility model aim, it is preferable that the material selection Yuhuatai colorful pebble or goose ovum of the supporting layer
Stone, laying depth 200mm.
Preferably, the height of the middle aqueous layer is 0.25m.
Preferably, the gradient of the inclined plate is preferably 15 °.
Preferably, the cloth water treatment unit and biofilter processing unit pass through flanged joint.
Preferably, it is mounted on water valve on the water inlet pipe, return duct and blow-down pipe.
Preferably, the aperture of the apopore is 20mm.
Preferably, the downflow weir is higher than drainage facility 50mm.
Compared with the existing technology, the utility model has the following advantages that：The utility model is using two stage biological processing combination
For integral type nitration denitrification biofilter, level-one is Prepositive denitrification, while degradation of organic substances, two level are used for aerobic nitrification,
Further organics removal, to realize that carbon source makes full use of and efficient denitrification；The utility model is simple in structure, capital construction and operation
Expense is low.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of upper integral type nitration denitrification biological aerated filter of the utility model.
It is shown in figure：Water inlet pipe 1, water inlet disk 2, flange 3, water distribution orifice plate 4, supporting layer 5, anaerobism workshop section 6, air inlet pipe 7,
It is aerated disk 8, water distribution gas distribution orifice plate 9, aerobic stage 10, downflow weir 11, drainpipe 12, backwash tube 13, centrifugal pump 14, water outlet
Water tank 15, outlet pipe 16, inclined plate 17, blow-down pipe 18, return duct 19.
Specific implementation mode
To more fully understand the utility model, the utility model is described further below in conjunction with the accompanying drawings, but this reality
It is unlimited so with novel embodiment.
As shown in Figure 1, a kind of upstream integral type nitration denitrification biological aerated filter, is column structure, including be located at
Portion goes out water treatment unit, the biofilter processing unit positioned at middle part and the cloth water treatment unit positioned at bottom.Cloth water process
Unit and biofilter processing unit are connected by flange 3.
Water treatment unit mainly by downflow weir 11 and goes out drainage facility and constitutes, and downflow weir is higher than drainage facility 50mm, and water outlet is set
Apopore there are one arranging；Apopore is connected to out water tank 15 by drainpipe 12, goes out water tank 15 and is connect with outlet pipe 16；
The aperture of apopore is preferably 20mm.
Biofilter processing unit includes mainly anaerobism workshop section 6 and aerobic stage 10, has middle aqueous layer between two workshop sections；It is good
10 lower section of oxygen workshop section is equipped with water distribution gas distribution orifice plate 9, and middle aqueous layer is equipped with aeration disk 8, and aeration disk 8 is connect with air inlet pipe 7；In
Between water layer lower end be anaerobism workshop section 6, the lower section of anaerobism workshop section 6 is equipped with supporting layer 5, and 5 lower section of supporting layer is water distribution orifice plate 4；Anaerobism work
For section 6 by being mainly made of anaerobism packing layer, the height of anaerobism packing layer is 0.5~0.6m；The anaerobism filler layer choosing of anaerobism workshop section
With light ceramic, grain size is 4~6mm.Aerobic stage is mainly made of aerobic packing layer, and the height of aerobic packing layer is 0.5~
0.6m, distance from top go out water treatment unit 500mm；It is 8~10mm that aerobic packing layer, which selects polyethylene spheric granules, grain size,.Detest
Oxygen workshop section 6 and 10 upper end of aerobic stage are connect with backwash tube 13；Backwash tube 13 connect centrifugal pump 14, centrifugal pump 14 with go out
Water tank 15 connects.
The material selection Yuhuatai colorful pebble or cobblestone of supporting layer, laying depth 200mm.
The highly preferred of middle aqueous layer is 0.25m, and centre is equipped with aeration disk.By side air inlet pipe air inlet, upward uniformly
Aeration.
Cloth water treatment unit includes water inlet pipe 1, water inlet disk 2, inclined plate 17, blow-down pipe 18 and cylinder；It is equipped in the middle part of cylinder
Water inlet disk 2, water inlet disk 2 are connect with water inlet pipe 1；Go out water tank 15 and water inlet pipe 1 is also connected by return duct 19；Cylinder body bottom
Equipped with inclined plate 17, inclined plate 17 connects blow-down pipe 18.The gradient of inclined plate 17 is preferably 15 °；Cylinder connects biofilter by flange 3
Processing unit.Water inlet pipe 1, return duct 19 and blow-down pipe 18 are mounted on water valve.
Enter the cloth water process list of bottom by water inlet pipe 1 after pretreated sewage is mixed with the water outlet for going out water tank 15
Member, mixing water inlet can reduce organic loading, while nitrate concentration increases, and suitable condition is provided for subsequent anaerobic denitrifying.
It is intake using water inlet disk 2, flow can guarantee that influent quality is uniform by water distribution orifice plate 4；After flow is by supporting layer 5, waste water
Into anaerobism workshop section 6, a large amount of denitrifying bacterias of light ceramic surface enrichment and anaerobic bacteria in anaerobism workshop section 6 turn nitrate nitrogen
Nitrogen is turned to, completes denitrification process, while organic matter macromolecular is decomposed into small molecule or free state, is conducive to subsequent aerobic
Workshop section 10 is handled.It is uniform by water distribution gas distribution orifice plate 9 by the waste water of level-one denitrification process after middle aqueous layer is fully aerated
Enter aerobic stage 10 after water distribution；Air selects aeration disk 8 to be aerated upwards, does not influence to be below after 7 air inlet of air inlet pipe
Anaerobism workshop section 6, while promoting flowing up for waste water.The filler polyethylene spheric granules that aerobic stage 10 is selected is larger,
Gap is larger, not only can guarantee that the dissolved oxygen of entire workshop section is in higher level, while also can guarantee being smoothed out for backwash.Into
The waste water for entering aerobic stage 10 carries out nitrification under the action of nitrobacteria and aerobic bacteria and further degrades small point
Son and hardly degraded organic substance.The sewage for eliminating organic matter, ammonia nitrogen and nitrate nitrogen flows through out water tank 15 by drainpipe 12, finally
It is discharged by outlet pipe 16, carries out subsequent processing or is directly discharged to natural water body.The sludge accumulation that biological treatment generates
In the bottom of cloth water treatment unit, sludge can be naturally drained along the inclined plate 17 of tool certain slope from blow-down pipe 18.Meanwhile it being vented
Pipe 18 has both the sewage discharge of reactor, easy access.
When reactor head loss reaches a certain level, backwashed.Due to aerobic stage and anaerobism workshop section
Packing material size used and material difference, are respectively arranged a backwashing water valve above each workshop section.Specifically open backwash
Valve at 13 liang of pipe, adjusts its flow velocity respectively, using the form of combined water and air backwash, carries out energy-efficient backwash.
The utility model handles the formula nitration denitrification biofilter that is combined into one using two stage biological, and the first order is preposition
Denitrification, while degradation of organic substances, the second level are used for aerobic nitrification, further organics removal.First order aerobic nitrification generates
Nitrate nitrogen, be back to the first order carry out anaerobic denitrifying.The anaerobism of the first order and anoxic microorganism are by the macromolecular in waste water
Organic matter is degraded to small molecule as carbon source and the energy, is conducive to mineralization of the second level to organic matter.Meanwhile the first order
Denitrification provides basicity for the aerobic nitrification effect of the second level.In addition, the partial reflux of the second level, can reduce influent ammonia nitrogen
With COD loads.This Prepositive denitrification can make full use of carbon source and efficient denitrification, while the integral type group of two-stage biofilter
The technological process for simplifying traditional denitrogenation is closed, capital construction and operating cost are greatly reduced.
Claims (8)
1. a kind of upstream integral type nitration denitrification biological aerated filter, is column structure, it is characterised in that：Including being located at top
Go out water treatment unit, the biofilter processing unit positioned at middle part and the cloth water treatment unit positioned at bottom；
The water treatment unit mainly by downflow weir and goes out drainage facility and constitutes, and downflow weir is higher than drainage facility, goes out drainage facility and is equipped with
One apopore；Apopore is connected to out water tank by drainpipe, goes out water tank and is connect with outlet pipe；
The biofilter processing unit includes mainly anaerobism workshop section and aerobic stage, has middle aqueous layer between two workshop sections；It is aerobic
Water distribution gas distribution orifice plate is equipped with below workshop section, middle aqueous layer is equipped with aeration disk, and aeration disk is connect with air inlet pipe；Under middle aqueous layer
End is anaerobism workshop section, and supporting layer is equipped with below anaerobism workshop section, is water distribution orifice plate below supporting layer；Anaerobism workshop section is by mainly by anaerobism
Packing layer forms, and the height of anaerobism packing layer is 0.5~0.6m；The anaerobism packing layer of anaerobism workshop section selects light ceramic, grain size
For 4~6mm；Aerobic stage is mainly made of aerobic packing layer, and the height of aerobic packing layer is 0.5~0.6m, aerobic packing layer
It is 8~10mm to select polyethylene spheric granules, grain size；Anaerobism workshop section and aerobic stage upper end are connect with backwash tube；Recoil
Pipe connection centrifugal pump is washed, centrifugal pump is connect with water tank is gone out；
The cloth water treatment unit includes water inlet pipe, water inlet disk, inclined plate, blow-down pipe and cylinder；Water inlet is equipped in the middle part of cylinder
Disk, water inlet disk are connect with water inlet pipe；Go out water tank and water inlet pipe is also connected by return duct；Cylinder body bottom is equipped with inclined plate, tiltedly
Plate connects blow-down pipe.
2. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：Described holds
Hold in the palm the material selection Yuhuatai colorful pebble or cobblestone of layer, laying depth 200mm.
3. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：In described
Between water layer height be 0.25m.
4. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：Described is oblique
The gradient of plate is preferably 15 °.
5. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：The cloth
Water treatment unit and biofilter processing unit pass through flanged joint.
6. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：It is described into
It is mounted on water valve on water pipe, return duct and blow-down pipe.
7. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：Described goes out
The aperture in water hole is 20mm.
8. upstream integral type nitration denitrification biological aerated filter according to claim 1, it is characterised in that：Described overflows
Stream weir is higher than drainage facility 50mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587890.6U CN207608393U (en) | 2017-11-24 | 2017-11-24 | A kind of upstream integral type nitration denitrification biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587890.6U CN207608393U (en) | 2017-11-24 | 2017-11-24 | A kind of upstream integral type nitration denitrification biological aerated filter |
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| Publication Number | Publication Date |
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| CN207608393U true CN207608393U (en) | 2018-07-13 |
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| CN201721587890.6U Expired - Fee Related CN207608393U (en) | 2017-11-24 | 2017-11-24 | A kind of upstream integral type nitration denitrification biological aerated filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052833A (en) * | 2018-08-29 | 2018-12-21 | 常州大学 | A kind of recycled water process units |
| CN109052839A (en) * | 2018-08-30 | 2018-12-21 | 常州大学 | A kind of low pollution river water cleaning device |
| CN109179900A (en) * | 2018-10-16 | 2019-01-11 | 常州大学 | A kind of pollution cellar water process all-in-one machine |
| CN111115823A (en) * | 2020-02-26 | 2020-05-08 | 大连广泰源环保科技有限公司 | Two-stage BAF biochemical system and application thereof |
| CN111333187A (en) * | 2020-03-27 | 2020-06-26 | 中国科学院广州地球化学研究所 | Biological filter system for in-situ treatment of black and odorous water body |
| CN113173637A (en) * | 2021-04-30 | 2021-07-27 | 山东绿创环境科技有限公司 | Multistage dissolved oxygen suspension aerator |
-
2017
- 2017-11-24 CN CN201721587890.6U patent/CN207608393U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052833A (en) * | 2018-08-29 | 2018-12-21 | 常州大学 | A kind of recycled water process units |
| CN109052839A (en) * | 2018-08-30 | 2018-12-21 | 常州大学 | A kind of low pollution river water cleaning device |
| CN109179900A (en) * | 2018-10-16 | 2019-01-11 | 常州大学 | A kind of pollution cellar water process all-in-one machine |
| CN111115823A (en) * | 2020-02-26 | 2020-05-08 | 大连广泰源环保科技有限公司 | Two-stage BAF biochemical system and application thereof |
| CN111333187A (en) * | 2020-03-27 | 2020-06-26 | 中国科学院广州地球化学研究所 | Biological filter system for in-situ treatment of black and odorous water body |
| CN113173637A (en) * | 2021-04-30 | 2021-07-27 | 山东绿创环境科技有限公司 | Multistage dissolved oxygen suspension aerator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20181124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |