CN209428226U - A kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification - Google Patents
A kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification Download PDFInfo
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- CN209428226U CN209428226U CN201821970922.5U CN201821970922U CN209428226U CN 209428226 U CN209428226 U CN 209428226U CN 201821970922 U CN201821970922 U CN 201821970922U CN 209428226 U CN209428226 U CN 209428226U
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Abstract
The utility model discloses a kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification, including raw water box, the raw water box is connected by the water inlet of water inlet pipe and intake pump, the water outlet of the intake pump is connect with anaerobic pond, the anaerobic pond is connect with aerobic tank, the aerobic tank is connect with anoxic pond, the anaerobic pond is connect with secondary settling tank, the bottom of the secondary settling tank connect the anaerobic pond and the anoxic pond by the sludge reflux pump being connected with mud return line respectively, and the top of the secondary settling tank is equipped with outlet pipe.The characteristics of processing unit can be realized sewage deep denitrogenation, solve the problems, such as that activated sludge concentration is low, and have structure simple, good sewage processing effect, high-efficient, be suitable for Practical Project transformation.
Description
Technical field
The utility model relates to technical field of sewage, it particularly relates to a kind of sludge applied to sewage water denitrification
Dual reflux AOA biofilm treatment apparatus.
Background technique
As the improvement of people's living standards, the phenomenon that water eutrophication gets worse, this is primarily due to a large amount of richnesses
The sanitary sewage and industrial wastewater discharge of the elements such as nitrogenous, phosphorus have exceeded self-purification of water energy into natural waters such as river, lakes
Power.Water quality deteriorates, and causes serious influence to the production and living of people and sustainable development.Therefore, water body richness is sought
Feedingization problem has caused extensive concern and has paid attention to.In recent years, China has put into substantial contribution and has administered the water such as Taihu Lake, Dian Chi
The eutrophication of body.However, still very difficult to be restored to the situation before pollution.Solve the problems, such as the root of water eutrophication
This method is to be discharged into natural water again after carrying out advanced nitrogen dephosphorization to sewage.Currently, how to be removed in realization efficient denitrification
Energy consumption, expense are reduced while phosphorus, are of great significance to Sewage Biological Treatment.
Utility model content
For above-mentioned technical problem in the related technology, it is double that the utility model proposes a kind of sludge applied to sewage water denitrification
Flow back AOA biofilm treatment apparatus, can overcome the above-mentioned deficiency of the prior art.
To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of sludge dual reflux AOA(aerobic/anaerobic/anoxic applied to sewage water denitrification) biofilm treatment apparatus, including
Raw water box, the raw water box are connected by the water inlet of water inlet pipe and intake pump, and the water outlet and anaerobic pond of the intake pump connect
It connects, the anaerobic pond is connect with aerobic tank, and the aerobic tank is connect with anoxic pond, and the anaerobic pond is connect with secondary settling tank, described
The bottom of secondary settling tank connect the anaerobic pond and the anoxic pond, institute by the sludge reflux pump being connected with mud return line respectively
The top for stating secondary settling tank is equipped with outlet pipe, is equipped with biologic packing material in the anoxic pond.
Further, the anaerobic pond, anoxic pond are equipped with agitating device.
Further, the aerobic bottom of pond portion is equipped with microporous aeration device, and the microporous aeration device passes through gas flow
Meter is connect with air pump.
The utility model has the beneficial effects that
(1) sewage is handled using AOA biology form membrane, this technique and tradition A2/ O process ration, eliminates nitre
Change liquid reflux, reduces operating cost；
(2) by using sludge dual reflux, the sludge concentration of anoxic pond is improved, so that the endogenous denitrification of activated sludge
Rate is accelerated, and the ability for nitrogen of degrading in sewage disposal process is improved, so that effluent index is better than discharge standard.
(3) aeration tank volume substantially reduces, and saves aeration energy consumption expense.
(4) sludge retention time is long, excess sludge is micro or it is a small amount of, tolerance water quality and quantity changing capability is strong, MBR is not present
Membrane pollution problem, without cleaning；It is combined after its secondary clarifier effluent plus magnetic flocculation sedimentation basin water purification system, for municipal wastewater,
It is discharged CODcr and is lower than 10mg/L lower than 1mg/L, TN lower than 20-30mg/L, ammonia nitrogen, TP is lower than 0.5mg/；Total energy consumption is low, gas consumption
Amount saves, and maintenance maintenance is few, and operating cost is far below MBR；Without increasing carbon source (using sewage, sludge itself carbon source)；
(5) present treatment device is suitable for engineer application, and the sewage treatment plant suitable for various scales is newly-built and is transformed, the technology
It is advanced, it reduces investment outlay, economical operation, effluent quality is good；
(6) present treatment device can be realized sewage deep denitrogenation, solve the problems, such as that activated sludge concentration is low, and have structure
Simply, good sewage processing effect, high-efficient, the characteristics of being suitable for Practical Project transformation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of sludge dual reflux AOA biology applied to sewage water denitrification according to the utility model embodiment
The structural schematic diagram of membrane treatment appts；
In figure: 1, raw water box, 2, water inlet pipe, 3, intake pump, 4, agitating device, 5, anaerobic pond, 6, aerobic tank, 7, air pump,
8, gas flowmeter, 9, microporous aeration device, 10, anoxic pond, 11, biologic packing material, 12, secondary settling tank, 13, mud return line, 14,
Sludge reflux pump, 15, outlet pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of sludge dual reflux AOA applied to sewage water denitrification according to the utility model embodiment
Biofilm treatment apparatus, including raw water box 1, the raw water box 1 are connect by water inlet pipe 2 with the water inlet of intake pump 3, it is described into
The water outlet of water pump 3 is connect with anaerobic pond 5, and the anaerobic pond 5 is connect with aerobic tank 6, and the aerobic tank 6 connects with anoxic pond 10
It connects, the anaerobic pond 10 is connect with secondary settling tank 12, and the bottom of the secondary settling tank 12 is respectively by being connected with mud return line 13
Sludge reflux pump 14 connects the anaerobic pond 5 and the anoxic pond 10, and described two heavy 12 top is equipped with outlet pipe 15.It is described to detest
Oxygen pond 5, anoxic pond 10 are equipped with agitating device 4.6 bottom of aerobic tank is equipped with microporous aeration device 9, the micro-pore aeration dress
9 are set to connect by gas flowmeter 8 with air pump 7.Biologic packing material 11 is equipped in the anoxic pond 10.
In order to facilitate the above-mentioned technical proposal for understanding the utility model, below by way of practical new to this in specifically used mode
The above-mentioned technical proposal of type is described in detail.
When specifically used, firstly, sewage enters reactor anaerobic pond 5 by raw water box 1 by water inlet pipe 2 and intake pump 3,
It is sufficiently mixed by agitating device 4 and the activated sludge in reactor, in this stage microorganism mainly by the organic matter in sewage
It is stored to intracellular；Then mixing sludge enters aerobic tank 6, is provided by air pump 7, gas flowmeter 8 and microporous aeration device 9
Dissolved oxygen, it is nitrate nitrogen or nitrite nitrogen by the mineralized nitrogen in sewage that the nitrifier in sludge, which carries out nitration reaction,；
The anoxic pond 10 of reactor is finally entered, wherein agitating device 4 makes sludge in system be in admixture, passes through endogenous anti-nitre
Changing the anaerobic ammonia oxidizing bacteria on bacterium and biologic packing material 11 for the nitrogen transformation in sewage is nitrogen discharge into air, thus real
Existing sewage water denitrification process.
It is process object with the water inlet of Beijing sewage plant, specific water quality is as follows: COD 100-250mg/L, NH4 +For 30-
35 mg/L, NO3 - ≤ 1.1 mg/L, NO2 -≤0.4 mg/L.Test result shows: after stable, municipal sewage passes through dirt
COD is 35-45 mg/L, NH after mud dual reflux AOA biofilm treatment apparatus anaerobism section4 +For 15-18 mg/L, NO3 -For 0-0.2
Mg/L, NO2 -For 0-0.2 mg/L；The NH after aerobic section4 +For 0-1.0 mg/L, NO3 -For 10-15 mg/L, NO2 -For 0-5
mg/L；Finally COD is 30-45 mg/L, NH after anoxic section4 +For 0-1.0 mg/L, NO3 -For 0-8.0 mg/L, NO2 -For
0-0.5 mg/L；Test result illustrates that being discharged the pollutants such as TN, TP realizes advanced treating, stably reaches country-level A row
Put standard.
In conclusion being reacted by microorganism nitration denitrification to dirt by means of the above-mentioned technical proposal of the utility model
Water is handled, to arrive the purpose of sewage water denitrification, the apparatus structure is simple, good, high-efficient to sanitary sewage disposal effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (3)
1. a kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification, it is characterised in that: including raw water box
(1), the raw water box (1) is connect by water inlet pipe (2) with the water inlet of intake pump (3), the water outlet of the intake pump (3) and
Anaerobic pond (5) connection, the anaerobic pond (5) connect with aerobic tank (6), and the aerobic tank (6) connect with anoxic pond (10), described
Anaerobic pond (5) is connect with secondary settling tank (12), and the bottom of the secondary settling tank (12) is respectively by being connected with mud return line (13)
Sludge reflux pump (14) connects the anaerobic pond (5) and the anoxic pond (10), and the top of the secondary settling tank (12) is equipped with water outlet
It manages (15), is equipped with biologic packing material (11) in the anoxic pond (10).
2. a kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification according to claim 1, special
Sign is: the anaerobic pond (5), anoxic pond (10) are equipped with agitating device (4).
3. a kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification according to claim 1, special
Sign is: aerobic tank (6) bottom is equipped with microporous aeration device (9), and the microporous aeration device (9) passes through gas flowmeter
(8) it is connect with air pump (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821970922.5U CN209428226U (en) | 2018-11-28 | 2018-11-28 | A kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821970922.5U CN209428226U (en) | 2018-11-28 | 2018-11-28 | A kind of sludge dual reflux AOA biofilm treatment apparatus applied to sewage water denitrification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443711A (en) * | 2021-07-28 | 2021-09-28 | 北控水务(中国)投资有限公司 | AOA process enhanced sludge sedimentation treatment system and control method |
| CN114455706A (en) * | 2021-12-21 | 2022-05-10 | 江苏裕隆环保有限公司 | Two mud backward flow AOA degree of depth denitrogenation systems of sewage |
| CN116143284A (en) * | 2022-09-08 | 2023-05-23 | 北京工业大学 | Device and method for realizing double short-range coupling anaerobic ammonia oxidation denitrification in continuous flow AOA (anaerobic organic light emitting diode) process through mixed sludge fermentation product |
-
2018
- 2018-11-28 CN CN201821970922.5U patent/CN209428226U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443711A (en) * | 2021-07-28 | 2021-09-28 | 北控水务(中国)投资有限公司 | AOA process enhanced sludge sedimentation treatment system and control method |
| CN114455706A (en) * | 2021-12-21 | 2022-05-10 | 江苏裕隆环保有限公司 | Two mud backward flow AOA degree of depth denitrogenation systems of sewage |
| CN116143284A (en) * | 2022-09-08 | 2023-05-23 | 北京工业大学 | Device and method for realizing double short-range coupling anaerobic ammonia oxidation denitrification in continuous flow AOA (anaerobic organic light emitting diode) process through mixed sludge fermentation product |
| CN116143284B (en) * | 2022-09-08 | 2024-04-26 | 北京工业大学 | Device and method for realizing double short-range coupling anaerobic ammonia oxidation denitrification in continuous flow AOA (anaerobic organic light emitting diode) process through mixed sludge fermentation product |
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Address after: 101101 Beijing Tongzhou District, Xinhua West Street, No. 60 Courtyard, No. 2 Building, 7th Floor, 701 Co-patentee after: Beijing University of Technology Patentee after: Guotou xinkaishui Environmental Investment Co.,Ltd. Address before: 101101 Beijing Tongzhou District, Xinhua West Street, No. 60 Courtyard, No. 2 Building, 7th Floor, 701 Co-patentee before: Beijing University of Technology Patentee before: XINKAI WATER ENVIRONMENT INVESTMENT Co.,Ltd. |