CN206447643U - Biomembrance process two-stage A/O denitrification systems - Google Patents
Biomembrance process two-stage A/O denitrification systems Download PDFInfo
- Publication number
- CN206447643U CN206447643U CN201720032456.5U CN201720032456U CN206447643U CN 206447643 U CN206447643 U CN 206447643U CN 201720032456 U CN201720032456 U CN 201720032456U CN 206447643 U CN206447643 U CN 206447643U
- Authority
- CN
- China
- Prior art keywords
- pond
- level
- grades
- anoxic
- ponds
- Prior art date
- 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.)
- Active
Links
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a kind of biomembrance process two-stage A/O denitrification systems, including the one-level anoxic pond being connected with top overflow manner, one-level Aerobic Pond, two grades of anoxic ponds and the two grades of Aerobic Ponds being arranged in order are flowed to along sewage；One-level anoxic pond and two grades of Aerobic Pond bottoms set water inlet pipe and outlet pipe respectively, and return duct is provided between one-level Aerobic Pond and one-level anoxic pond；It is respectively arranged with one-level anoxic pond, one-level Aerobic Pond, two grades of anoxic ponds and two grades of Aerobic Ponds in the combined stuffing that packing volume is 68 72%, two anoxic ponds and is provided with agitator, two Aerobic Pond bottoms is provided with plate-type aerator；The volume of one-level anoxic pond is the 30 50% of one-level anoxic pond and one-level Aerobic Pond total measurement (volume), and the volume of two grades of anoxic ponds is the 50 60% of two grades of anoxic ponds and two grades of Aerobic Pond total measurement (volume)s.The utility model is simple in construction, and occupation of land is smaller, and nitric efficiency is high, and operating cost is low, is especially suitable for the higher organic wastewater of processing total nitrogen concentration.
Description
Technical field
The utility model is related to industrial waste water treatment, more particularly, to a kind of biomembrance process two-stage A/O denitrogenations
System.
Background technology
For containing the higher waste water of nitrogen concentration, such as slaughtering wastewater, beer waste water, fur waste water and wastewater from chemical industry, it is necessary to
Through denitrogenation processing, it is up to standard after could discharge.Traditional denitrogenation, which is used, includes the A/O activated sludge of an anoxic pond and an Aerobic Pond
Pond, sewage is entered in Aerobic Pond through anoxic pond top overfall, occurs carbonaceous organic material oxidation, itrogenous organic substance ammonification and ammonia
The reactions such as nitrogen digestion；Meanwhile, mixed-liquor return in Aerobic Pond to anoxic pond, contained NO in mixed liquor3 -- N and fresh sewage
In contained carbonaceous organic material occur anti-nitration reaction, generation nitrogen abjection, so as to complete denitrogenation processing.But traditional denitrification process
Due to using unit volume microbial biomass in activated sludge process, biological tank less, therefore, pond hold general bigger than normal, construction costs it is high,
And nitric efficiency is relatively low.In addition, the sludge that the technique is produced is more, new pollution sources are easily formed.
The content of the invention
The utility model provides a kind of biomembrance process two-stage A/O denitrification systems, it is therefore intended that solve traditional one-level A/O activity
Sludge-tank pond holds the problems such as bigger than normal, nitric efficiency is relatively low.
To achieve the above object, the utility model can take following technical proposals：
Biomembrance process two-stage A/O denitrification systems described in the utility model, including A/O biological tanks, the A/O biological tanks bag
One-level anoxic pond, one-level Aerobic Pond, two grades of anoxic ponds and the two grades of Aerobic Ponds for flowing to and being arranged in order along sewage are included, the one-level lacks
The top overfall in oxygen pond is connected with the one-level Aerobic Pond, the top overfall of one-level Aerobic Pond and two grades of anoxic ponds
It is connected, the top overfall of two grades of anoxic ponds is connected with two grades of Aerobic Ponds；One-level anoxic pond bottom is communicated with into water
Pipe, two grades of Aerobic Pond bottoms are communicated with outlet pipe, the overfall position of one-level Aerobic Pond and are provided with reflux pump, with the backflow
The return duct outlet that pump is connected is arranged at the top position of one-level anoxic pond water inlet；The one-level anoxic pond, one-level are good
The combined stuffing that packing volume is 68-72%, one-level anoxic pond are respectively arranged with oxygen pond, two grades of anoxic ponds and two grades of Aerobic Ponds
With agitator is provided with two grades of anoxic ponds, one-level Aerobic Pond and two grades of Aerobic Pond bottoms are provided with plate-type aerator；Described one
The volume of level anoxic pond is one-level anoxic pond and the 30-50% of one-level Aerobic Pond total measurement (volume), and the volume of two grades of anoxic ponds is two
The 50-60% of level anoxic pond and two grades of Aerobic Pond total measurement (volume)s.
The biomembrance process two-stage A/O denitrification systems that the utility model is provided, include two-stage series connection A/O biological tank, pass through
The volume ratio of reflux line and each biological tank, effectively increases nitric efficiency and utilization of carbon source rate in rationally setting；By in A/O
Combined stuffing is set in biological tank, microorganism is largely attached on filler, improves the volumetric loading of biological tank, reduces pond
Hold, improve the anti impulsion load of microorganism, advantageously reduce construction costs, improve nitric efficiency；In addition, being set in anoxic pond
Agitator is put, sludge biofilm effect is improved, reaction mass is fully contacted, be conducive to the progress of denitrification reaction, in Aerobic Pond
Plate-type aerator is set, is conducive to nitration reaction and generates the blowout of nitrogen.In summary, the utility model is simple in construction, accounts for
Ground is smaller, and nitric efficiency is high, and operating cost is low, is especially suitable for the higher organic wastewater of processing total nitrogen concentration.
Brief description of the drawings
Fig. 1 is top surface structure schematic diagram of the present utility model.
Fig. 2 is bottom surface structure schematic diagram of the present utility model.
Fig. 3 is A-A cross-sectional views in Fig. 1.
Fig. 4 is process flow diagram of the present utility model.
Embodiment
As Figure 1-4, biomembrance process two-stage A/O denitrification systems described in the utility model, its A/O biological tank is concatenation
Two grades of connected A/0 biological tanks, including one-level anoxic pond 1, one-level Aerobic Pond 2, the two grades of anoxics being arranged in order are flowed to along sewage
Be connected between pond 3 and two grades of Aerobic Ponds 4, adjacent sludge-tank by top overfall, i.e., as shown in Figure 3, one-level anoxic
The top of pond 1 is provided with the overfall for leading to one-level Aerobic Pond 2, and the top of one-level Aerobic Pond 2, which is provided with, leads to overflowing for two grades of anoxic ponds 3
Head piece, two grades of tops of anoxic pond 3 are provided with the overfall for leading to two grades of Aerobic Ponds 4.As shown in figure 1, the bottom of one-level anoxic pond 1 connects
Water inlet pipe 5 is connected with, two grades of bottoms of Aerobic Pond 4 are communicated with outlet pipe 6, the overfall position of one-level Aerobic Pond 2 and are provided with backflow
Pump 7, the outlet of return duct 8 being connected with reflux pump 7 is arranged at the top position of the water inlet of one-level anoxic pond 1.Such as Fig. 4 institutes
Show, the muddy water mixed solution in one-level Aerobic Pond 2 is back to one-level anoxic pond 1, backflow mixed liquor and one-level by the return duct 8
Sewage in anoxic pond 1 carries out anti-nitration reaction, makes full use of carbon source, reduces the input of additional carbon, reduces operating cost.
In the above-mentioned denitrification system with interior backflow, when in the mixed liquor to sewage capacity of returns, sewage in each anoxic pond and Aerobic Pond
Residence time, and the biological pool volumes of one-level A/O account for whole denitrification system A/O biological tank total measurement (volume)s ratio carry out it is appropriate
Control, can effectively improve the overall nitric efficiency of system.After Theoretical Design and many experiments amendment, find to work as one-level anoxic
The volume in pond 1 is the 30-50% of one-level anoxic pond 1 and the total measurement (volume) of one-level Aerobic Pond 2, and the volume of two grades of anoxic ponds 3 is two grades of anoxics
Pond 3 and the 50-60% of two grades of total measurement (volume)s of Aerobic Pond 4, and one-level anoxic pond 1, one-level Aerobic Pond 2 and two grades of anoxic ponds 3, two grades it is good
Hydraulic detention time ratio in oxygen pond 4 is 4:When 1, during one-level A/0 biological tanks internal reflux ratio 200 ~ 400%, the nitric efficiency of system
Preferably, 70-90% denitrification percent can be reached.
As shown in figure 3, being set respectively in one-level anoxic pond 1, one-level Aerobic Pond 2, two grades of anoxic ponds 3 and two grades of Aerobic Ponds 4
There is the combined stuffing 9 that packing volume is 68-72%, microorganism is largely attached on combined stuffing 9, its aerobic sludge age and anoxic mud
Age is no longer held by pond to be influenceed；Meanwhile, the micro organism quantity in biological tank is improved, volumetric loading is increased, pond appearance is reduced,
The biological tank pond that relatively conventional activated sludge process can reduce about 50% holds, and has significant excellent for the denitrogenation of high total nitrogen industrial wastewater
Gesture；In addition, being attached to the microorganism on combined stuffing, the Sewage shock load that flow is larger, total nitrogen concentration is higher is resistant to,
With good denitrification effect.Meanwhile, it is provided with agitator 10 in one-level anoxic pond 1 and two grades of anoxic ponds 3（See Fig. 1,2）,
The contact area of sewage and microorganism is improved with this, the efficiency of anti-nitration reaction is improved；And it is aerobic in one-level Aerobic Pond 2 and two grades
The bottom of pond 4 is provided with plate-type aerator 11（See Fig. 2,3）, blowing for nitrogen of quickening releases speed while sewage nitrification is met.Should
Combined stuffing 9 is suitable to biomembrance process filling for sewage treatment for commercially available, and in order to prevent filler from occurring drift and wind, filler hangs
Lanyard upper and lower ends are each attached on filler support；In order to strengthen the aeration effect of plate-type aerator 11, its aeration head is with combining
The bottom of filler 9 is at least at a distance of 800mm.
In use, raw wastewater is introduced into the first anoxic pond 1, the water outlet of the first anoxic pond 1 enters the first Aerobic Pond 2, first
The nitrification of carbonaceous organic material oxidation, the ammonification of itrogenous organic substance and ammonia nitrogen occurs in Aerobic Pond 2.Meanwhile, the first Aerobic Pond 2
Mixed-liquor return is to the first anoxic pond 1, the NO3 in backflow mixed liquor-- N utilizes the carbon containing of raw wastewater in the presence of denitrification
Organic matter carries out anti-nitration reaction as carbon source material in the first anoxic pond 1.The nitrogen that the denitrification process of first anoxic pond 1 is produced
Gas blows in the presence of the plate-type aerator 11 of the first Aerobic Pond 2 to be released.
The mixed liquor of first Aerobic Pond 2 enters the second anoxic pond 3, and denitrifying bacterium is entered using the endogenous metabolism material in mixed liquor
One step denitrification.The mixed liquor of second anoxic pond 3 enters the second Aerobic Pond 4, and denitrification generation is disengaged because aeration acts on stripping
Nitrogen, improves overall nitric efficiency.
If denitrification percent need to be improved further, carbon source unnecessary after external carbon source, denitrification can be added in the second anoxic pond 3
It can be removed in the second Aerobic Pond 4.
The utility model overall craft is simple, low engineering cost, and nitric efficiency is high, Chi Rong little, runs convenient and reliable.Due to
Fixed combined stuffing is provided with inside biological tank, a large amount of microorganisms can be accumulated, makes biological tank negative with higher volume
Lotus and anti impulsion load ability, with higher reliability；The system sludge biofilm effect is good, and sludge concentration is high, muddy water mixing
Uniformly, without sludge reflux and sludge yield is low；Processing water inlet total nitrogen concentration height, C/N are especially suitable for than relatively low waste water, can
Meet the use requirement of large, medium and small industrial wastewater denitrogenation.
Claims (1)
1. a kind of biomembrance process two-stage A/O denitrification systems, including A/O biological tanks, it is characterised in that：The A/O biological tanks include
The one-level anoxic pond being arranged in order is flowed to along sewage（1）, one-level Aerobic Pond（2）, two grades of anoxic ponds（3）With two grades of Aerobic Ponds（4）,
The one-level anoxic pond（1）Top overfall and the one-level Aerobic Pond（2）It is connected, one-level Aerobic Pond（2）Top overflow
Head piece and two grades of anoxic ponds（3）It is connected, two grades of anoxic ponds（3）Top overfall and two grades of Aerobic Ponds（4）Phase
Connection；One-level anoxic pond（1）Bottom is communicated with water inlet pipe（5）, two grades of Aerobic Ponds（4）Bottom is communicated with outlet pipe（6）, one-level is good
Oxygen pond（2）Overfall position at be provided with reflux pump（7）, with the reflux pump（7）The return duct being connected（8）Outlet is set
In one-level anoxic pond（1）At the top position of water inlet；The one-level anoxic pond（1）, one-level Aerobic Pond（2）, two grades of anoxic ponds
（3）With two grades of Aerobic Ponds（4）Inside it is respectively arranged with the combined stuffing that packing volume is 68-72%（9）, one-level anoxic pond（1）With two
Level anoxic pond（3）Inside it is provided with agitator（10）, one-level Aerobic Pond（2）With two grades of Aerobic Ponds（4）Bottom is provided with disc type aeration
Device（11）；The one-level anoxic pond（1）Volume be one-level anoxic pond（1）With one-level Aerobic Pond（2）The 30-50% of total measurement (volume), institute
State two grades of anoxic ponds（3）Volume be two grades of anoxic ponds（3）With two grades of Aerobic Ponds（4）The 50-60% of total measurement (volume).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720032456.5U CN206447643U (en) | 2017-01-12 | 2017-01-12 | Biomembrance process two-stage A/O denitrification systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720032456.5U CN206447643U (en) | 2017-01-12 | 2017-01-12 | Biomembrance process two-stage A/O denitrification systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206447643U true CN206447643U (en) | 2017-08-29 |
Family
ID=59672107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720032456.5U Active CN206447643U (en) | 2017-01-12 | 2017-01-12 | Biomembrance process two-stage A/O denitrification systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206447643U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630149A (en) * | 2017-01-12 | 2017-05-10 | 机械工业第六设计研究院有限公司 | Biomembrance two-stage A/O denitrification system and biomembrance two-stage A/O denitrification process |
| CN108147554A (en) * | 2018-02-12 | 2018-06-12 | 苏州首创嘉净环保科技股份有限公司 | Integrated domestic sewage treatment device |
| CN113754059A (en) * | 2021-09-24 | 2021-12-07 | 陕西华陆化工环保有限公司 | A high-efficient biological denitrogenation system for waste water treatment |
-
2017
- 2017-01-12 CN CN201720032456.5U patent/CN206447643U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630149A (en) * | 2017-01-12 | 2017-05-10 | 机械工业第六设计研究院有限公司 | Biomembrance two-stage A/O denitrification system and biomembrance two-stage A/O denitrification process |
| CN108147554A (en) * | 2018-02-12 | 2018-06-12 | 苏州首创嘉净环保科技股份有限公司 | Integrated domestic sewage treatment device |
| CN113754059A (en) * | 2021-09-24 | 2021-12-07 | 陕西华陆化工环保有限公司 | A high-efficient biological denitrogenation system for waste water treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206447643U (en) | Biomembrance process two-stage A/O denitrification systems | |
| CN103253770A (en) | Integrated biological reactor for treatment of industrial wastewater and domestic sewage | |
| CN101973678A (en) | Bioaugmentation treatment technology of high ammonia nitrogen wastewater | |
| CN104609560B (en) | Method for performing nitrogen biological removal on low-temperature low-carbon nitrogen ratio sewage | |
| CN204097179U (en) | Biological fluidized bed | |
| CN105948381A (en) | Environment-friendly sewage treatment equipment | |
| CN103508562A (en) | Integrated swimming self-circulation denitrification reactor | |
| CN105923771B (en) | A kind of self-loopa biological denitrification reactor | |
| CN107892437A (en) | A kind of MBBR reaction systems of strengthened denitrification function | |
| CN105417705B (en) | A kind of fracturing outlet liquid bioremediation based on BESI technologies | |
| CN108911124B (en) | Integrated autotrophic denitrification reactor with self-interception anaerobic ammonia oxidizing bacteria function | |
| CN103193321A (en) | Sludge self-circulation dispersed sewage treatment device applicable to directly-discharged water body and method thereof | |
| CN210945013U (en) | Low-aeration up-flow type biological bed organic wastewater treatment system | |
| CN210710919U (en) | High-load composite aerobic biological reaction device | |
| CN105439279A (en) | Biological fluidized bed | |
| CN106630149A (en) | Biomembrance two-stage A/O denitrification system and biomembrance two-stage A/O denitrification process | |
| CN107129119A (en) | A kind of biochemical treatment apparatus and technique for realizing high CO_2 density | |
| CN106745737A (en) | A kind of short distance nitration Anammox manifold type denitrification reactor | |
| CN101164915A (en) | Diphase integrated multi-gradation internal circulation anaerobic bioreactor | |
| CN206467036U (en) | Short distance nitration Anammox manifold type denitrification reactor | |
| CN202007177U (en) | Dideoxy denitrification equipment for enhanced sewage denitrification | |
| CN206069641U (en) | Coking wastewater processing system | |
| CN109485151A (en) | The device and its treatment process of synthesis gas preparing ethylene glycol production wastewater treatment | |
| CN205575883U (en) | Domestic sewage treatment device | |
| CN2723437Y (en) | High efficiency nitration reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |