CN109607787A - A kind of high strength domestic sewage processing unit and method - Google Patents
A kind of high strength domestic sewage processing unit and method Download PDFInfo
- Publication number
- CN109607787A CN109607787A CN201811624597.1A CN201811624597A CN109607787A CN 109607787 A CN109607787 A CN 109607787A CN 201811624597 A CN201811624597 A CN 201811624597A CN 109607787 A CN109607787 A CN 109607787A
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- aeration tank
- sewage
- pond
- anoxic pond
- aeration
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The present invention proposes a kind of high strength domestic sewage processing unit and method, 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 present invention is easy for 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 invention belongs to the technical field of sanitary sewage disposal more particularly to a kind of high strength domestic sewage processing unit and
Method.
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 invention is to solve the above problems providing a kind of high strength domestic sewage
The efficiency and stability of system denitrogenation dephosphorizing can be improved in processing unit and method.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of high strength domestic sewage processing unit,
It is characterised in that it includes the first aeration tank set gradually, anoxic pond, anaerobic pond, the second aeration tank, biological aerated filter, institute
It states anoxic pond to be connected to anaerobism bottom of pond portion, is respectively equipped with the first sewage water inlet pipe and second in first aeration tank and anoxic pond
Sewage water inlet pipe, anoxic pond and the second aeration tank are connected by nitrification liquid return pipe, the first aeration tank, the second aeration tank and exposure
Gas biofilter bottom of pond is respectively equipped with the first, second, third aerator, and first, second, third aerator leads to respectively
Piping is connected with Aeration fan, and the first aeration tank, anaerobic pond, installs combination biologic packing material in the second aeration tank additional at anoxic pond, exposes
Install dephosphorization filtrate in gas biofilter 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.
A kind of high strength domestic sewage processing method, which comprises the steps of:
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.
The beneficial effects of the present invention are: 1, a kind of high strength domestic sewage processing unit and method are provided, clicked through using two
Water, the first sewage water inlet pipe are introduced into the first aeration tank, and can not only degrade partial organic substances, can also promote ammonium oxidation,
Improve ammonia nitrogen removal；Second water inlet is directly entered anoxic pond, and sufficient carbon source can be provided for the anti-nitration reaction of anoxic pond, promotes
Denitrification denitrogenation efficiency；2, anaerobic pond water outlet is directly entered the second aeration tank, realizes inversion A2/ O function, i.e. polyP bacteria anaerobism are released
Direct aerobic phosphorus absorption after phosphorus can produce " hungry effect ", improve the removal of system phosphorus；3, aeration tank, anoxic pond, in anaerobic pond
It installs composite filling additional, on the one hand can improve microorganism concn with enriched functional microorganism, mention pollutants removal rate, it is another
Aspect filler has large surface area, can also retain a large amount of suspended matters, and two aspects can reduce excess sludge；4, aeration life
Dephosphorization filtrate is installed in object filter tank additional using light ceramic, iron plane flower, volcanic rock, biofilm carrier is on the one hand used as, is enriched with micro- life
Object oxygenolysis dirt water pollutant can discharge Ca containing elements such as Ca, Fe, Al in another party's light ceramic 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 can all lead to
The effects of crossing precipitating, absorption, 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 is mended
Carbon source is filled, 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 increases simultaneously
Add reinforced phosphor-removing biological filter unit, inside installs cheap dephosphorization filtrate additional, can avoid biological phosphate-eliminating not with reinforced phosphor-removing efficiency
Stable common fault improves the denitrogenation dephosphorizing rate of whole system；6, end uses biological aerated filter, and filtrate has larger surface
Product, can adsorb a large amount of biomembranes, also act as filtration, mud-water separation can be realized without settler.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the structural schematic diagram of the dephosphorization filtrate of one embodiment of the invention.
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
For a better understanding of the invention, the invention will be further described with reference to the accompanying drawings and examples.
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。
A kind of high strength domestic sewage processing method, includes the following steps:
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 a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (4)
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.
4. a kind of high strength domestic sewage processing method, which comprises the steps of:
A part of sewage is introduced into the first aeration tank, combines biologic packing material enriched biological film, and the first aerator supplies for biomembrane
Ammonium oxidation in water, by nitration reaction, is nitre using the organic matter in dioxygen oxidation sewage, nitrobacteria by oxygen, aerobic bacteria
The nitrification liquid gravity flow that hydrochlorate generates enters anoxic pond and is discharged into nitrate reduction for nitrogen by the effect of denitrifying bacteria
In atmosphere, system denitrogenation is realized, while another part sewage raw water is directly entered anoxic pond, provides carbon source for nitrobacteria, benefit
In the nitric efficiency of the system of raising, enter subsequent anaerobic pond by the sewage that anoxic pond is handled, polyP bacteria is released under anaerobic
Phosphorus creates conditions for subsequent aerobic phosphorus absorption, and sewage enters the second aeration tank, and organic matter continues by aerobic biologic membrane oxygenolysis,
Phosphorus in sewage is enriched in microbial body by largely inhaling phosphorus, achievees the purpose that sewage dephosphorization by spoil disposal, together by polyP bacteria
When, the nitrification liquid that nitrobacteria participates in oxidation in the second aeration tank is back to anoxic pond by reflux pump, carries out denitrification, reinforcing
System denitrogenation, sewage enter biological aerated filter, and under aeration effect, dephosphorization filtrate can discharge Fe into water2+、Fe3+, can
To filter the remaining rich phosphorous sludge of generation by sludge pipe outlet, realize by removing the phosphorus in sewage in a manner of adsorbing, precipitate etc.
Sewage dephosphorization can remove a large amount of SS and reduce excess sludge production, last excess sludge is logical due to the suction-operated of filtrate
Cross sludge pipe discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811624597.1A CN109607787A (en) | 2018-12-28 | 2018-12-28 | A kind of high strength domestic sewage processing unit and method |
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| CN201811624597.1A CN109607787A (en) | 2018-12-28 | 2018-12-28 | A kind of high strength domestic sewage processing unit and method |
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| CN109607787A true CN109607787A (en) | 2019-04-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112499913A (en) * | 2020-12-30 | 2021-03-16 | 魏一明 | Enhanced nitrogen and phosphorus removal domestic sewage treatment method |
| CN113248082A (en) * | 2021-05-28 | 2021-08-13 | 浙江问源环保科技股份有限公司 | Device for promoting, transforming and strengthening phosphorus removal of rural domestic sewage by using iron shavings |
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| CN101591065A (en) * | 2008-05-27 | 2009-12-02 | 宋乾武 | Sewage double-biomembrane deep treatment technology |
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| CN103241904A (en) * | 2013-05-24 | 2013-08-14 | 郑州大学 | Multi-point water inlet aeration anoxic-aerobic high-efficient nitrogen and phosphorus removal method |
| WO2018040753A1 (en) * | 2016-08-29 | 2018-03-08 | 武汉东川自来水科技开发有限公司 | Double-biomembrane sewage treatment system and method |
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2018
- 2018-12-28 CN CN201811624597.1A patent/CN109607787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101591065A (en) * | 2008-05-27 | 2009-12-02 | 宋乾武 | Sewage double-biomembrane deep treatment technology |
| CN102557343A (en) * | 2011-12-28 | 2012-07-11 | 广州市市政工程设计研究院 | Process and device for treating sewage through denitrification and dephosphorization by oxic-anaerobic-anoxic-oxic (OAAO) plus membrane bioreactor (MBR) process |
| CN103241904A (en) * | 2013-05-24 | 2013-08-14 | 郑州大学 | Multi-point water inlet aeration anoxic-aerobic high-efficient nitrogen and phosphorus removal method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112499913A (en) * | 2020-12-30 | 2021-03-16 | 魏一明 | Enhanced nitrogen and phosphorus removal domestic sewage treatment method |
| CN113248082A (en) * | 2021-05-28 | 2021-08-13 | 浙江问源环保科技股份有限公司 | Device for promoting, transforming and strengthening phosphorus removal of rural domestic sewage by using iron shavings |
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