CN209619000U - A kind of high strength domestic sewage processing unit - Google Patents
A kind of high strength domestic sewage processing unit Download PDFInfo
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- CN209619000U CN209619000U CN201822232181.7U CN201822232181U CN209619000U CN 209619000 U CN209619000 U CN 209619000U CN 201822232181 U CN201822232181 U CN 201822232181U CN 209619000 U CN209619000 U CN 209619000U
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- aeration tank
- pond
- anoxic pond
- aeration
- water inlet
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Abstract
The utility model proposes a kind of high strength domestic sewage processing units, including the first aeration tank set gradually, anoxic pond, anaerobic pond, second aeration tank, biological aerated filter, anoxic pond is connected to anaerobism bottom of pond portion, the first sewage water inlet pipe and the second sewage water inlet pipe are respectively equipped in first aeration tank and anoxic pond, anoxic pond is connected with the second aeration tank by nitrification liquid return pipe, first aeration tank, second aeration tank and biological aerated filter bottom of pond are respectively equipped with first, second, third aerator, it is connected respectively by pipeline with Aeration fan, first aeration tank, anoxic pond, anaerobic pond, install combination biologic packing material in second aeration tank additional, install dephosphorization filtrate in biological aerated filter additional, bottom is arranged mud discharging mouth and connects sludge pipe.The utility model has the advantages of convenient installation, and process structure is simple, compact, rationally distributed, high to the removal rate of organic matter, ammonia nitrogen, phosphorus, SS, has been improved particularly the denitrogenation dephosphorizing efficiency of system.
Description
Technical field
The utility model belongs to the technical field more particularly to a kind of high strength domestic sewage processing dress of sanitary sewage disposal
It sets.
Background technique
Recently as improvement of living standard, China's city domestic sewage and some Expressway Services etc. go out
Existing ammonia-nitrogen content raising, carbon-nitrogen ratio downward trend.High ammonia nitrogen, low C/N waste water belong to the waste water of difficult biological treatment, excessively high ammonia
Nitrogen concentration has certain inhibiting effect to microorganism.A large number of studies show that the nitrogen and phosphorus in sewage are to lead to water eutrophication
The denitrogenation dephosphorizing of one of the main reason for change, sewage are imperative.New sewage treatment discharge standard is to nutrients such as nitrogen phosphorus
Control require to be increasingly stringenter, in city domestic sewage biological treatment system, it is dirty how to improve ammonia nitrogen in high density, low C/N
The denitrogenation dephosphorizing efficiency of water is always a difficult point.
A2/ O technique has simple structure, total hrt as a kind of simplest synchronous denitrogen dephosphorus technology
Short, design and operation experience is mature, control complexity is small and is not likely to produce the series of advantages such as sludge bulking, is that traditional wastewater factory changes
It is built into the optimum technology of the sewage plant with denitrogenation dephosphorizing function, which is also current China's city sewage plant
In one of most widely used synchronous denitrogen dephosphorus technology.However A2There is also a series of problems, such as nitrifier for/O technique
The contradiction of sludge age, contradiction of substrate competition etc. between dephosphorization bacterial, it is very difficult to further increase the efficiency of denitrogenation dephosphorizing.
Summary of the invention
The technical problem to be solved by the utility model is in view of the above problems, provide a kind of high concentration life
The efficiency and stability of system denitrogenation dephosphorizing can be improved in sewage-treatment plant.
The utility model solves technical solution used by above-mentioned technical problem: a kind of high strength domestic sewage processing dress
It sets, which is characterized in that including the first aeration tank, anoxic pond, anaerobic pond, the second aeration tank, biological aerated filter set gradually,
The anoxic pond is connected to anaerobism bottom of pond portion, and the first sewage water inlet pipe and are respectively equipped in first aeration tank and anoxic pond
Two sewage water inlet pipes, anoxic pond and the second aeration tank are connected by nitrification liquid return pipe, the first aeration tank, the second aeration tank and
Biological aerated filter bottom of pond is respectively equipped with the first, second, third aerator, the first, second, third aerator difference
It is connected by pipeline with Aeration fan, the first aeration tank, anaerobic pond, installs combination biologic packing material in the second aeration tank additional at anoxic pond,
Install dephosphorization filtrate in biological aerated filter additional, bottom is arranged mud discharging mouth and connects sludge pipe.
According to the above scheme, first, second sewage water inlet pipe is equipped with flow control valve.
According to the above scheme, the dephosphorization filtrate is polypropylene pellets, installs light ceramic, iron additional inside the polypropylene pellets
Wood shavings, volcanic rock.
The beneficial effects of the utility model are: 1, a kind of high strength domestic sewage processing unit and method are provided, using two
Point water inlet, the first sewage water inlet pipe are introduced into the first aeration tank, and can not only degrade partial organic substances, can also promote ammonia nitrogen oxygen
Change, improves ammonia nitrogen removal；Second water inlet is directly entered anoxic pond, can provide sufficient carbon source for the anti-nitration reaction of anoxic pond,
Promote denitrification denitrogenation efficiency；2, anaerobic pond water outlet is directly entered the second aeration tank, realizes inversion A2/ O function, i.e. polyP bacteria are detested
Oxygen releases direct aerobic phosphorus absorption after phosphorus, can produce " hungry effect ", improves the removal of system phosphorus；3, aeration tank, anoxic pond, anaerobism
It installs composite filling in pond additional, on the one hand can improve microorganism concn with enriched functional microorganism, mention pollutants removal rate,
Another aspect filler has large surface area, can also retain a large amount of suspended matters, and two aspects can reduce excess sludge；4, it exposes
Dephosphorization filtrate is installed in gas biofilter additional using light ceramic, iron plane flower, volcanic rock, is on the one hand used as biofilm carrier, enrichment
Dirty water pollutant is decomposed in microbiological oxidation, contains the elements such as Ca, Fe, Al in another party's light ceramic, Ca can be discharged into water2 +、Fe2+、Fe3+、Al3+Fe can also be discharged into water Deng, iron plane flower2+、Fe3+, a large amount of metalliferous minerals are contained in volcanic rock, these are all
Can be by precipitating, adsorbing the effects of, by the phosphorus ligands in sewage.Simultaneously because the suction-operated of filtrate, can remove a large amount of SS
And reduce excess sludge production；5, integrated artistic includes ammonium oxidation twice, it is only necessary to a nitrification liquid reflux, while anoxic
Pond supplementary carbon source is, it can be achieved that carbon source makes full use of, improves ammonia nitrogen conversion efficiency, improves the functions such as system nitric efficiency.End simultaneously
End increases reinforced phosphor-removing biological filter unit, and inside installs cheap dephosphorization filtrate additional, can be avoided biology with reinforced phosphor-removing efficiency and be removed
The unstable common fault of phosphorus improves the denitrogenation dephosphorizing rate of whole system；6, end uses biological aerated filter, and filtrate has larger
Surface area, can adsorb a large amount of biomembranes, also act as filtration, and mud-water separation can be realized without settler.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the structural schematic diagram of the dephosphorization filtrate of the utility model one embodiment.
Wherein: the first aeration tank 1-, 2- anoxic pond, 3- anaerobic pond, the second aeration tank 4-, 5- biological aerated filter, 6-
One sewage water inlet pipe, the second sewage water inlet pipe of 7-, 8- nitrification liquid return pipe, the first aerator of 9-, the second aerator of 10-,
11- third aerator, 12- Aeration fan, 13- combine biologic packing material, 14- dephosphorization filtrate, 15- polypropylene pellets, 16- lightweight
Haydite, 17- iron plane flower, 18- volcanic rock.
Specific embodiment
To more fully understand the utility model, the utility model work is further retouched with reference to the accompanying drawings and examples
It states.
As shown in Figure 1, a kind of high strength domestic sewage processing unit, including set gradually the first aeration tank 1, anoxic pond
2, anaerobic pond 3, the second aeration tank 4, biological aerated filter 5, anoxic pond is connected to anaerobism bottom of pond portion, the first aeration tank and anoxic pond
In be respectively equipped with the first sewage water inlet pipe 6 and the second sewage water inlet pipe 7, anoxic pond and the second aeration tank pass through nitrification liquid return pipe
8 are connected, and the first aeration tank, the second aeration tank and biological aerated filter bottom of pond are respectively equipped with the first aerator 9, second aeration
Device 10, third aerator 11 are connected with Aeration fan 12 by pipeline respectively, the first aeration tank, anoxic pond, anaerobic pond,
It installs combination biologic packing material 13 in second aeration tank additional, installs dephosphorization filtrate 14 in biological aerated filter additional, mud discharging is arranged in bottom
Mouth connection sludge pipe.
First, second sewage water inlet pipe is equipped with flow control valve, for adjusting flow of inlet water.
As shown in Fig. 2, dephosphorization filtrate is polypropylene pellets 15, inside installs light ceramic 16 additional, iron plane spends 17, volcanic rock
18。
Include following content using the method that the present apparatus carries out high strength domestic sewage processing:
A part of sewage is introduced into the first aeration tank, combines biologic packing material enriched biological film, the first aerator, for biology
Film oxygen supply, aerobic bacteria is using the organic matter in dioxygen oxidation sewage, and nitrobacteria is by nitration reaction, by ammonium oxidation in water
Enter anoxic pond for the nitrification liquid gravity flow that nitrate generates to release nitrate reduction for nitrogen by the effect of denitrifying bacteria
It is put into atmosphere, realizes system denitrogenation, while another part sewage raw water is directly entered anoxic pond, provides carbon for nitrobacteria
Source enters subsequent anaerobic pond by the sewage that anoxic pond is handled, polyP bacteria is in anaerobic condition conducive to the nitric efficiency of the system of raising
Under release phosphorus, create conditions for subsequent aerobic phosphorus absorption, sewage enters the second aeration tank, and organic matter continues by aerobic biologic membrane oxidation point
Phosphorus in sewage is enriched in microbial body by largely inhaling phosphorus, the mesh of sewage dephosphorization is reached by spoil disposal by solution, polyP bacteria
, meanwhile, the nitrification liquid that nitrobacteria participates in oxidation in the second aeration tank is back to anoxic pond by reflux pump, carries out anti-nitre
Change, consolidation system denitrogenation, sewage enters biological aerated filter, under aeration effect, dephosphorization filtrate can be discharged into water Fe2+,
Fe3+ can remove phosphorus in sewage by the modes such as adsorbing, precipitating, and the remaining rich phosphorous sludge for filtering generation passes through outside sludge pipe
Row realizes sewage dephosphorization, due to the suction-operated of filtrate, can remove a large amount of SS and reduce excess sludge production, finally remain
Remaining sludge is discharged by sludge pipe.
This process Installation is convenient, and process structure is simple, compact, rationally distributed, to organic matter, ammonia nitrogen, phosphorus, SS removal rate
Height has been improved particularly the denitrogenation dephosphorizing efficiency of system, and excess sludge production is few, is not necessarily to settler, working service is simple, especially
Suitable for the high concentrations such as cities and towns, Expressway Service, low C/N than sanitary sewage processing.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (3)
1. a kind of high strength domestic sewage processing unit, which is characterized in that including set gradually the first aeration tank, anoxic pond,
Anaerobic pond, the second aeration tank, biological aerated filter, the anoxic pond are connected to anaerobism bottom of pond portion, first aeration tank and lack
The first sewage water inlet pipe and the second sewage water inlet pipe are respectively equipped in oxygen pond, anoxic pond and the second aeration tank are flowed back by nitrification liquid
Pipe is connected, and the first aeration tank, the second aeration tank and biological aerated filter bottom of pond are respectively equipped with the first, second, third aeration dress
It sets, first, second, third aerator passes through pipeline respectively and is connected with Aeration fan, and the first aeration tank, is detested at anoxic pond
It installs combination biologic packing material in oxygen pond, the second aeration tank additional, installs dephosphorization filtrate in biological aerated filter additional, mud discharging is arranged in bottom
Mouth connection sludge pipe.
2. a kind of high strength domestic sewage processing unit according to claim 1, which is characterized in that described first, second
Sewage water inlet pipe is equipped with flow control valve.
3. a kind of high strength domestic sewage processing unit according to claim 2, which is characterized in that the dephosphorization filtrate is
Polypropylene pellets, the polypropylene pellets inside install light ceramic, iron plane flower, volcanic rock additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232181.7U CN209619000U (en) | 2018-12-28 | 2018-12-28 | A kind of high strength domestic sewage processing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822232181.7U CN209619000U (en) | 2018-12-28 | 2018-12-28 | A kind of high strength domestic sewage processing unit |
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| Publication Number | Publication Date |
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| CN209619000U true CN209619000U (en) | 2019-11-12 |
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| CN201822232181.7U Active CN209619000U (en) | 2018-12-28 | 2018-12-28 | A kind of high strength domestic sewage processing unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607787A (en) * | 2018-12-28 | 2019-04-12 | 武汉紫光能控科技有限公司 | A kind of high strength domestic sewage processing unit and method |
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2018
- 2018-12-28 CN CN201822232181.7U patent/CN209619000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607787A (en) * | 2018-12-28 | 2019-04-12 | 武汉紫光能控科技有限公司 | A kind of high strength domestic sewage processing unit and method |
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