CN205892872U - Rural sewage treatment's integrated nitrogen and phosphorus removal system - Google Patents
Rural sewage treatment's integrated nitrogen and phosphorus removal system Download PDFInfo
- Publication number
- CN205892872U CN205892872U CN201620815841.2U CN201620815841U CN205892872U CN 205892872 U CN205892872 U CN 205892872U CN 201620815841 U CN201620815841 U CN 201620815841U CN 205892872 U CN205892872 U CN 205892872U
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- China
- Prior art keywords
- pond
- anaerobism
- sewage
- dephosphorization
- nitrogen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 38
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 title abstract description 14
- 239000011574 phosphorus Substances 0.000 title abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 title abstract description 6
- 239000010802 sludge Substances 0.000 claims abstract description 23
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000009189 diving Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 206010021143 Hypoxia Diseases 0.000 abstract description 7
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 241000233866 Fungi Species 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a rural sewage treatment's integrated nitrogen and phosphorus removal system. The system constitute by pretreatment tank, anaerobism pond, oxygen deficiency pond, good oxygen pond and precipitation tank. Adopting the mode of intaking of shunting, making sewage enter into anaerobism pond and oxygen deficiency pond respectively, the purpose is in order to redistribute the carbon source in the sewage, to make it effectively utilized. Simultaneously, set up the internal reflux system between anaerobism pond and oxygen deficiency pond, make denitrification dephosphorization fungus realize denitrification dephosphorization effect under anaerobism and oxygen deficiency condition environment in turn. In addition, in will good oxygen pond nitrify activated sludge in liquid and the precipitation tank flow back to the oxygen deficiency pond rather than the anaerobism pond, carry out denitrification dephosphorization effect in the oxygen deficiency pond, when realizing dephosphorization effect, reduced nitrite nitrogen and the content of nitrate nitrogen in sewage, reduce nitrite nitrogen and nitrate nitrogen and release the inhibitory action of phosphorus reaction to the anaerobism, phosphorus can fully be released to messenger's denitrification dephosphorization fungus under the anaerobism condition, the nitrogen and phosphorus removal efficiency of improvement system.
Description
Technical field
This utility model is related to a kind of integration denitrification and dephosphorization system being applied to rural sewage treatment.
Background technology
With the increasingly quickening of China's Development of China's Urbanization, the living standards of the people of rural area improve constantly, water consumption by
Year improves, and increased the discharge capacity of country sewage simultaneously.Without corresponding sewage disposal system to this kind of sewage at
Reason, the nutrient substance such as substantial amounts of nitrogen, phosphorus, pesticide and other Organic substances are directly discharged in field ditch, river and lake, it will make water
Algae in body obtains abundant nutrition and sharp increase, and serious meeting makes water hypoxia, water quality deterioration, black smelly phenomenon,
This produces very big harm to ecological environmental and human health impacts.Therefore, supporting rural sewage treatment system construction seems particularly
Important, it is also the committed step that prevention natural water pollutes, prevents black smelly phenomenon generation simultaneously.
At present, the process of country sewage, because being restricted by factors such as geographical position it is difficult to be incorporated to urban pipe network, needs on the spot
Process, also will take rural holding area simultaneously less, therefore, compact conformation, operation convenience, floor space are little, effluent quality is high
Sewage disposal system urgently develop, this will have good practical significance to rural sewage treatment.
Utility model content
For overcoming drawbacks described above, the purpose of this utility model is to propose a kind of little, easy to maintenance the fitting of floor space
Integration denitrification and dephosphorization system for rural sewage treatment.
For reaching above-mentioned purpose, the integration denitrification and dephosphorization system of rural sewage treatment of the present utility model, described is
Following each unit that system is separated and be sequentially connected by water proof barricade form: pretreatment tank, anaerobic pond, anoxic pond, Aerobic Pond and heavy
Shallow lake groove；Connected by overflow mechanism between each unit；Each unit is wholely set, and described system shell adopts steel plate or cement plate
Material makes.
Preferably, being provided with internal reflux system between anaerobic pond and anoxic pond；
It is provided with nitrification liquid return-flow system between anoxic pond and Aerobic Pond；
It is provided with sludge recirculation system, in order to the activated sludge of sedimentation tank is passed through sludge reflux between anoxic pond and stillpot
System flowback is to anoxic pond.
Preferably, in pretreatment tank installing submersible pump, for a part of sewage separation is entered into anoxic pond.
Preferably, install in stillpot scraping mud equipment, it is provided with heavy bucket in described stillpot；Described scrapes mud
Equipment scrapes activated sludge in heavy bucket.
Preferably, being respectively mounted one or several mechanical stirring devices in pretreatment tank, anoxic pond.
Preferably, installing semi soft packing in described anaerobic pond, packing volume accounts for the 50%-70% of pond appearance, with propping up
Frame supports；At anaerobic pond bottom, one or more jet mixers are installed simultaneously.
Preferably, being provided with portable suspending carrier in described Aerobic Pond；Described portable suspending carrier accounts for pond
The 20%-30% holding, carrier proportion is 0.97-0.98kg/m3, more than 90%, specific surface area is more than 500m to porosity2/m3；
Aerator is installed in Aerobic Pond.
This utility model process is simple, is only provided with pretreatment tank, anaerobic pond, anoxic pond, Aerobic Pond and stillpot, and point
Do not install in anaerobic pond and Aerobic Pond, added semi-soft packing and portable suspending carrier, by biomembrane and activated sludge two
Plant technique to be organically combined together.This system, by the way of distributing inlet, makes limited carbon source in rural sewage obtain
Make full use of, not only increase the anti-load-bearing capacity of system and the denitrification dephosphorization ability of system, and processing low-carbon-source agriculture
During industry sewage, need not add or add less carbon source and can obtain higher denitrogenation dephosphorizing efficiency, ammonia nitrogen removal frank reaches 98%, always
More than 95%, total tp removal rate reaches 95% to nitrogen removal efficiency.
Brief description
Fig. 1 is the structural representation of this utility model embodiment.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, illustrated embodiment is served only for explaining this reality
With new, but this utility model is not limited to embodiment.Methods described is conventional method if no special instructions.Described former
Material all can be either commercially available from open if no special instructions.
Fig. 1 is the structural representation of this utility model embodiment.As shown in figure 1, a kind of integration of rural sewage treatment
Denitrification dephosphorization system, including pretreatment tank 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, stillpot 5, this system can be applicable to low-carbon (LC)
The rural sewage treatment in source, also apply be applicable to small town sewage disposal, Expressway Service, tourist attraction, nursing house with
And the sewage disposal such as army post.
It is mounted with mechanical stirring device 6 and Water inlet shunt device 7, wherein mechanical stirring device can make entrance in pretreatment tank
The sewage of system uniformly mixes；Part flow arrangement is to the part water inlet in pretreatment tank is further separated into anoxic pond, being
Denitrification dephosphorization effect in anoxic pond provides more carbon sources.Therein overflowing then is passed through in another part water inlet in pretreatment tank
Certainly flowing into anaerobic pond carries out anaerobic phosphorus release effect on stream weir.
Anaerobic pond has added semi-soft fiberfill 9 has been made by polypropylene or polyethylene, diameter can for ф 120mm,
ф 150mm or ф 200mm, installing space, between 30-100mm, specifically can adjust peace according to required packed density during design
Dress spacing；Specific surface area is in 25-110m2/m3.Packing layer accounts for the 50%-70% of total pond appearance it is therefore intended that extending sludge age, enriches micro-
Biological species, improve anti-load-bearing capacity.In at the bottom of pond, jet mixing device 8 is installed, not only can prevent activated sludge from depositing, and
Activated sludge and sewage uniformly can be mixed, so that activated sludge is fully contacted with the pollutant in sewage, improve to pollutant
Removal ability.Sewage after processing through anaerobic pond, flows into anoxic pond certainly through downflow weir.
Using the mechanical stirring device in anoxic pond, activated sludge is uniformly mixed with sewage, make activated sludge and sewage
In pollutant be fully contacted, carry out denitrification dephosphorization reaction, on the one hand can utilize denitrifying phosphorus removing bacteria (dpaos) effect
Absorb the phosphorus in sewage, on the other hand can reduce the content of Nitrite In Polluted Water nitrate nitrogen and nitrate nitrogen, in internal reflux system
In the presence of, by the mixed-liquor return of the activated sludge in anoxic pond and sewage to anaerobic pond, make denitrifying phosphorus removing bacteria in anaerobism
Under the alternating action of anaerobic environment, realize denitrification dephosphorization function, nitrite nitrogen and nitrate nitrogen can also be reduced simultaneously
Inhibitory action to anaerobic phosphorus release reaction.Sewage after processing through anoxic pond, flows into Aerobic Pond certainly through downflow weir.
Add portable suspending carrier 10 according to the 20%-30% that pond holds in Aerobic Pond, this carrier is cylindrical, diameter
For 10mm or 20mm, it is made up of polyethylene, proportion is 0.97-0.98kg/m3, more than 90%, specific surface area is more than porosity
500m2/m3It is therefore intended that the nitrobacteria making the generation cycle longer is attached on suspending carrier, extend the sludge age of system, carry
The nitrification efficiency of high system.
Aerator 11 is installed in Aerobic Pond, provides sufficient oxygen for aerobic reaction.Additionally, arranging in Aerobic Pond
Nitrification liquid return-flow system, nitrite nitrogen produced by nitrifying process and nitrate nitrogen are back to anoxic pond, are that denitrification removes
Phosphorus effect provides more electron acceptors, and meanwhile, the polyP bacteria in activated sludge also can absorb in sewage under aerobic condition
Phosphorus, realizes dephosphorization function.Sewage after processing through Aerobic Pond, flows into stillpot 5 certainly through downflow weir.
Install in stillpot 5 and scrape mud equipment 12, be provided with heavy bucket in described stillpot；Described scrapes mud equipment
Activated sludge is scraped in heavy bucket.In stillpot, using action of gravity, muddy water is carried out separating, supernatant is through outlet conduit
Enter water body, the activated sludge part precipitating provides through sludge recirculation system, the operation being back to anoxic pond for system
More Biomass are it is ensured that being smoothed out of denitrification dephosphorization effect, another part activated sludge then waste disposal.
Using integration denitrification and dephosphorization system described in the utility model, country sewage is processed, result is listed in table
In 1.In water outlet, cod, ammonia nitrogen, total nitrogen, total phosphorus all can reach the People's Republic of China's " urban wastewater treatment firm pollutant emission mark
Accurate " (gb18918-2002) one-level a standard.
The disposition to country sewage for the table 1 integration denitrification and dephosphorization system
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.
Claims (7)
1. a kind of integration denitrification and dephosphorization system of rural sewage treatment is it is characterised in that described system is divided by water proof barricade
Every and the following each unit composition that is sequentially connected: pretreatment tank, anaerobic pond, anoxic pond, Aerobic Pond and stillpot；Wherein, each list
Unit is wholely set, and described system shell adopts steel plate or cement sheet material to make；Connected by overflow mechanism between each unit.
2. integration denitrification and dephosphorization system according to claim 1 is it is characterised in that set between anaerobic pond and anoxic pond
There is internal reflux system；
It is provided with nitrification liquid return-flow system between anoxic pond and Aerobic Pond；
It is provided with sludge recirculation system between anoxic pond and stillpot, the activated sludge of sedimentation tank is returned by sludge recirculation system
It flow to anoxic pond.
3. integration denitrification and dephosphorization system according to claim 1 is it is characterised in that install diving in pretreatment tank
Pump, for entering into anoxic pond by a part of sewage separation.
4. integration denitrification and dephosphorization system according to claim 1 sets it is characterised in that installing in stillpot and scraping mud
Standby, it is provided with heavy bucket in described stillpot；Described mud equipment of scraping scrapes activated sludge in heavy bucket.
5. integration denitrification and dephosphorization system according to claim 1 is it is characterised in that in pretreatment tank and/or anoxic pond
The one or more mechanical stirring devices of interior installation.
6. integration denitrification and dephosphorization system according to claim 1 is it is characterised in that install half in described anaerobic pond
Soft-filler, packing volume accounts for the 50%-70% of pond appearance, is supported with support；At anaerobic pond bottom, one or more penetrating is installed simultaneously
Streaming agitating device.
7. integration denitrification and dephosphorization system according to claim 1 is it is characterised in that be provided with described Aerobic Pond
Portable suspending carrier；Described portable suspending carrier accounts for the 20%-30% of pond appearance, and carrier proportion is 0.97-0.98kg/
m3, more than 90%, specific surface area is more than 500m to porosity2/m3；
Aerator is installed in Aerobic Pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620815841.2U CN205892872U (en) | 2016-07-29 | 2016-07-29 | Rural sewage treatment's integrated nitrogen and phosphorus removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620815841.2U CN205892872U (en) | 2016-07-29 | 2016-07-29 | Rural sewage treatment's integrated nitrogen and phosphorus removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205892872U true CN205892872U (en) | 2017-01-18 |
Family
ID=57785810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620815841.2U Expired - Fee Related CN205892872U (en) | 2016-07-29 | 2016-07-29 | Rural sewage treatment's integrated nitrogen and phosphorus removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205892872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980962A (en) * | 2019-11-26 | 2020-04-10 | 浙江永续环境工程有限公司 | Phosphorus-accumulating microbial inoculum and sludge treatment technology using same |
-
2016
- 2016-07-29 CN CN201620815841.2U patent/CN205892872U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980962A (en) * | 2019-11-26 | 2020-04-10 | 浙江永续环境工程有限公司 | Phosphorus-accumulating microbial inoculum and sludge treatment technology using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220617 Address after: 243000 Fu Chang Industrial Park, 259 HSI Nan Road, Ma'anshan economic and Technological Development Zone, Anhui Patentee after: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee after: HUATIAN NANJING ENGINEERING & TECHNOLOGY CORPORATION, MCC Address before: 243005 Hunan West Road, Ma'anshan, Ma'anshan, Anhui Patentee before: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Patentee before: MCC HUATIAN (ANHUI) ENERGY SAVING ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |