CN104724827A - Integrated sewage nitrogen removal and phosphorous removal reactor and process method thereof - Google Patents
Integrated sewage nitrogen removal and phosphorous removal reactor and process method thereof Download PDFInfo
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- CN104724827A CN104724827A CN201510140827.7A CN201510140827A CN104724827A CN 104724827 A CN104724827 A CN 104724827A CN 201510140827 A CN201510140827 A CN 201510140827A CN 104724827 A CN104724827 A CN 104724827A
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/308—Biological phosphorus removal
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Abstract
The invention relates to a sewage nitrogen removal and phosphorous removal reactor, and discloses an integrated sewage nitrogen removal and phosphorous removal reactor and a process method thereof. The integrated sewage nitrogen removal and phosphorous removal reactor comprises an anoxic zone, an aerobic zone, a sedimentation zone and a mixing zone which are arranged in sequence, and also comprises an anaerobic zone which is arranged at a junction between an outlet of the anoxic zone and the mixing zone. The integrated sewage nitrogen removal and phosphorous removal reactor disclosed by the invention adopts a highly integrated design, the internal functional zones are connected with one another to ensure that the aerobic, anoxic and anaerobic processes are realized in the same reactor, and the effects of nitrification-denitrification and biological phosphorus removal are synchronously realized in the same system; and a mud-water mixed solution is oxygenated by virtue of air lift aeration, and a secondary sedimentation tank presented in the form of a central island is used for realizing self-refluxing of sludge, so that the disturbance caused by aerobic aeration to the sedimentation tank is avoided, and the blocking effect of aeration to fluid flow is reduced. The reactor is compact in structure, saves a sludge reflux pump, and is relatively small in floor area, so that the cost is greatly reduced, the process is simplified, and the nitrogen removal and phosphorous removal effects are relatively high.
Description
Technical field
The present invention relates to a kind of sewage denitrification and dephosphorization reactor, particularly relate to a kind of integrated sewage water denitrogenation dephosphorizing reactor and processing method thereof.
Background technology
In recent years, integrated sewage disposal technique is developed rapidly due to features such as its floor space are little, energy consumption is low, structure is simple, and it utilizes rational arrangement space, and the technique such as aeration, precipitation is integrated, and completes the non-stop run of technique.
Just be mainly at the existing integrated sewage water denitrification dephosphorization apparatus of investigation and application and technique thereof both at home and abroad: by anoxic, aerobic and precipitate form A/O integral process, the integrated oxidation ditch with phosphorus removal functional and precipitation function, membrane module is placed in the integrated film device in bio-reactor, the SBR technique being completed whole sewage treatment process by regulation time order and the MSBR etc. combined with SBR by membrane module.But above-mentioned existing integrated sewage water denitrification dephosphorization apparatus and technique thereof mainly exist, and Integration Design is lower, processing method is more complicated, lower, the middle flow process of denitrogenation dephosphorizing usefulness and auxiliary facility is more, floor space is comparatively large and run, to safeguard and capital cost makes more greatly the shortcoming that cost is higher.
Summary of the invention
The present invention is directed to integrated sewage water denitrification dephosphorization apparatus and technique thereof in prior art and mainly have that Integration Design is lower, processing method is more complicated, lower, the middle flow process of denitrogenation dephosphorizing usefulness and auxiliary facility is more, floor space is comparatively large and run, to safeguard and capital cost makes more greatly the shortcoming that cost is higher, provide the design of a kind of Highgrade integration, work simplification, higher, the middle flow process of denitrogenation dephosphorizing usefulness and auxiliary facility is less, floor space is less and the integrated sewage water denitrogenation dephosphorizing reactor greatly reduced costs and processing method thereof.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Integrated sewage water denitrogenation dephosphorizing reactor, comprise be arranged in order oxygen-starved area, aerobic zone, settling region, mixing zone, also comprise anaerobic zone, anaerobic zone is located at oxygen-starved area outlet and the intersection of mixing zone, arranges diaphragm between anaerobic zone and mixing zone.
In order to reach the object of dephosphorization, anaerobic zone is set at the intersection of oxygen-starved area outlet and mixing zone.
This integrated sewage water denitrogenation dephosphorizing reactor adopts Highgrade integration design, inner each functional zone are connected, aerobic-anaerobic-anaerobic process are achieved in same reactor, reach the usefulness simultaneously realizing nitrification-denitrification and biological phosphate-eliminating in same reactor assembly.
This integrated sewage water denitrogenation dephosphorizing structure of reactor is compact, structures and equipment few, system can realize mud automatic back flow and without the need to building second pond in addition, floor space can be saved and reduce capital cost, save sludge reflux pump, minimizing equipment purchasing, operation and maintenance take, and make work simplification, greatly reduce cost.
As preferably, anaerobic zone is anaerobic biological selector or anaerobic biochemical reaction district.According to actual needs using anaerobic zone as anaerobic biological selector or anaerobic biochemical reaction district.
As preferably, aerobic zone comprises aerobic aeration district, aerobic overcurrent district, and oxygen-starved area, aerobic aeration district, aerobic overcurrent district, settling region, mixing zone, anaerobic zone are arranged in order from outside to inside.
As preferably, adopt Airlift aeration aerobic zone to be divided into aerobic aeration district and aerobic overcurrent district, both avoided the disturbance of aerobic aeration to settling tank, and turn reduced the resistance of aeration fluid flow.
Adopt Airlift aeration, not only can reduce the resistance to flow of mixed solution in device, and the turbulent flow longitudinally can be promoted, make mixed solution Homogeneous phase mixing.
As preferably, settling region is bucket type settling tank.
As preferably, be provided with movable training wall between mixing zone and aerobic zone, movable training wall is connected in aerobic aeration district, and movable training wall is provided with opening, and opening is positioned at the junction region of oxygen-starved area outlet and mixing zone.
As preferably, oxygen-starved area, aerobic overcurrent district, anaerobic zone are equipped with speed governing return stirring device.
As preferably, oxygen-starved area is provided with flow deflector.Flow deflector be provided with the circulation cycle helping muddy water mixed solution.
Integrated sewage water denitrification dephosphorization technique method, step comprises:
A, former water enter anaerobic zone through peristaltic pump, muddy water mixed solution is formed after fully being mixed with former water by backflow sewage by speed governing return stirring device, muddy water mixed solution enters oxygen-starved area, then from oxygen-starved area annular return to anaerobic zone, then enters in aerobic overcurrent district and form circulation cycle;
B, aerobic aeration district adopt Airlift aeration to carry out oxygenation to muddy water mixed solution, promote the turbulent flow on muddy water mixed solution longitudinally, make muddy water mixed solution Homogeneous phase mixing; The muddy water mixed solution of oxygenation flow to the settling tank of settling region from aerobic overcurrent district, in settling tank, mud is carried out in muddy water layering, water is separated, and water is discharged from the overflow weir on settling tank top, and mud automatic back flow is to aerobic overcurrent district.
As preferably, former water flooding velocity is 20L/h, and hydraulic detention time is 20h, and sludge age is 15 days, and the mass concentration of discharging water from the overflow weir on settling tank top after mud, water are separated is 5 ~ 15mg/L.COD clearance reaches 95%, ammonia nitrogen removal frank reaches 95%, the average removal rate of total nitrogen and total phosphorus is respectively 80% and about 90%, treatment effect is reliable and stable, effluent quality is better, meets national sewage comprehensive emission standard (GB18918-2002) primary standard (B) regulation completely.
In reactor assembly, biophase is when abundant, and its change has certain regularity, is applicable to microbial growth, is beneficial to and improves sanitary sewage disposal usefulness.
This novel all-in-one denitrification dephosphorization technique is a kind of novel process improving renewal on the basis of integrated OCO technique, it had both used for reference the advantage that oxidation ditch and OCO self-circulation in reactor realize dephosphorization denitrogenation, the second pond simultaneously by presenting with central island form realize mud from backflow.
The present invention is owing to have employed above technical scheme, there is significant technique effect: the integrated sewage water denitrogenation dephosphorizing reactor adopting Highgrade integration design, inner each functional zone are connected, aerobic-anaerobic-anaerobic process are achieved in same reactor, reach the usefulness simultaneously realizing nitrification-denitrification and biological phosphate-eliminating in same system, by Airlift aeration, oxygenation is carried out to muddy water mixed solution, the second pond presented with central island form is to realize the backflow certainly of mud, both the disturbance of aerobic aeration to settling tank had been avoided, turn reduce the inhibition of aeration fluid flow, this structure of reactor is compact, save sludge reflux pump, floor space is less, greatly reduce costs, and work simplification, denitrogenation dephosphorizing usefulness is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated sewage water denitrogenation dephosphorizing reactor embodiment of the present invention.
Fig. 2 is the sectional view of Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-anaerobic zone, 2-oxygen-starved area, 3-aerobic aeration district, 4-aerobic overcurrent district, 5-mixing zone, 6-settling region, 7-movable training wall, 8-speed governing return stirring device, 9-flow deflector, 60-settling tank.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1
Integrated sewage water denitrogenation dephosphorizing reactor, as shown in Figure 1-2, comprise be arranged in order oxygen-starved area 2, aerobic zone, settling region 6, mixing zone 5, also comprise anaerobic zone 1, anaerobic zone 1 is located at oxygen-starved area 2 and exports the intersection with mixing zone 5, arranges diaphragm between anaerobic zone 1 and mixing zone 5.The upper end of diaphragm is the circular arc plate of a bending evagination towards the upper left corner, the lower end of diaphragm is towards the indent circular arc plate of lower right corner bending, when fluid from top to bottom flows into, the upper end resistance of diaphragm is little, more fluid can be allowed to flow into, when fluid flows through the lower end of diaphragm, because outlet size diminishes, the flow velocity of fluid can be increased again.Thus effectively form circulation cycle in the reactor; Reach mixed solution flow to from aerobic zone settling tank carry out mud, water be separated, automatic sludge returning is to aerobic zone.
In order to reach the object of dephosphorization, anaerobic zone 1 is set at the intersection of oxygen-starved area 2 outlet and mixing zone 5.This integrated sewage water denitrogenation dephosphorizing reactor adopts Highgrade integration design, inner each functional zone are connected, aerobic-anaerobic-anaerobic process are achieved in same reactor, reach the usefulness simultaneously realizing nitrification-denitrification and biological phosphate-eliminating in same reactor assembly.
This integrated sewage water denitrogenation dephosphorizing structure of reactor is compact, structures and equipment few, system can realize mud automatic back flow and without the need to building second pond in addition, floor space can be saved and reduce capital cost, save sludge reflux pump, minimizing equipment purchasing, operation and maintenance take, and make work simplification, greatly reduce cost.
Anaerobic zone 1 is anaerobic biological selector or anaerobic biochemical reaction district.According to actual needs using anaerobic zone 1 as anaerobic biological selector or anaerobic biochemical reaction district.
Aerobic zone comprises aerobic aeration district 3, aerobic overcurrent district 4, and oxygen-starved area 2, aerobic aeration district 3, aerobic overcurrent district 4, settling region 6, mixing zone 5, anaerobic zone 1 are arranged in order.
Airlift aeration is adopted aerobic zone to be divided into aerobic aeration district 3 and aerobic overcurrent district 4.Airlift aeration, not only can reduce the resistance to flow of mixed solution in device, and can promote the turbulent flow longitudinally, makes mixed solution Homogeneous phase mixing.Settling region 6 is bucket type settling tank 60.
Be provided with movable training wall 7 between mixing zone 5 and aerobic zone, movable training wall 7 is connected in aerobic aeration district 3, and movable training wall 7 is provided with opening, and opening is positioned at oxygen-starved area 2 and exports the junction region with mixing zone 5.
Oxygen-starved area 2, aerobic overcurrent district 4, anaerobic zone 1 are equipped with speed governing return stirring device 8.
Oxygen-starved area 2 is provided with flow deflector 9.Flow deflector 9 be provided with the circulation cycle helping muddy water mixed solution.
Integrated sewage water denitrification dephosphorization technique method, step comprises:
A, former water enter anaerobic zone 1 through peristaltic pump, muddy water mixed solution is formed after fully being mixed with former water by backflow sewage by speed governing return stirring device 8, muddy water mixed solution enters oxygen-starved area 2, then from oxygen-starved area 2 annular return to anaerobic zone 1, then enters in aerobic overcurrent district 4 and form circulation cycle;
B, aerobic aeration district 3 adopt Airlift aeration to carry out oxygenation to muddy water mixed solution, promote the turbulent flow on muddy water mixed solution longitudinally, make muddy water mixed solution Homogeneous phase mixing; The muddy water mixed solution of oxygenation flow to the settling tank 60 of settling region 6 from aerobic overcurrent district 4, in settling tank 60, mud is carried out in muddy water layering, water is separated, and water is discharged from the overflow weir on settling tank 60 top, and mud automatic back flow is to aerobic overcurrent district 4.
In above-mentioned steps, former water flooding velocity is 20L/h, and hydraulic detention time is 20h, and sludge age is 15 days, and the mass concentration of the overflow weir discharge water from settling tank 60 top after mud, water are separated is 5 ~ 15mg/L.COD clearance reaches 95%, ammonia nitrogen removal frank reaches 95%, and the average removal rate of total nitrogen and total phosphorus is respectively 80% and about 90%, and treatment effect is reliable and stable, effluent quality is better, meets national sewage comprehensive emission standard GB18918-2002 primary standard B completely and specifies.
In reactor assembly, biophase is when abundant, and its change has certain regularity, is applicable to microbial growth, is beneficial to and improves sanitary sewage disposal usefulness.
This novel all-in-one denitrification dephosphorization technique is a kind of novel process improving renewal on the basis of integrated OCO technique, it had both used for reference the advantage that oxidation ditch and OCO self-circulation in reactor realize dephosphorization denitrogenation, the second pond simultaneously by presenting with central island form realize mud from backflow.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (10)
1. integrated sewage water denitrogenation dephosphorizing reactor, comprise be arranged in order oxygen-starved area (2), aerobic zone, settling region (6), mixing zone (5), it is characterized in that: also comprise anaerobic zone (1), anaerobic zone (1) is located at oxygen-starved area (2) outlet and the intersection of mixing zone (5), arranges diaphragm between anaerobic zone (1) and mixing zone (5).
2. integrated sewage water denitrogenation dephosphorizing reactor according to claim 1, is characterized in that: anaerobic zone (1) is anaerobic biological selector or anaerobic biochemical reaction district.
3. a kind of integrated sewage water denitrogenation dephosphorizing reactor according to claim 1, it is characterized in that: aerobic zone comprises aerobic aeration district (3), aerobic overcurrent district (4), oxygen-starved area (2), aerobic aeration district (3), aerobic overcurrent district (4), settling region (6), mixing zone (5), anaerobic zone (1) are arranged in order from outside to inside.
4. a kind of integrated sewage water denitrogenation dephosphorizing reactor according to claim 3, is characterized in that: adopt Airlift aeration aerobic zone to be divided into aerobic aeration district (3) and aerobic overcurrent district (4).
5. integrated sewage water denitrogenation dephosphorizing reactor according to claim 3, is characterized in that: settling region (6) are bucket type settling tank (60).
6. integrated sewage water denitrogenation dephosphorizing reactor according to claim 3, it is characterized in that: between mixing zone (5) and aerobic zone, be provided with movable training wall (7), movable training wall (7) is connected in aerobic aeration district (3), movable training wall (7) is provided with opening, and opening is positioned at the junction region of oxygen-starved area (2) outlet and mixing zone (5).
7. integrated sewage water denitrogenation dephosphorizing reactor according to claim 1, is characterized in that: oxygen-starved area (2), aerobic overcurrent district (4), anaerobic zone (1) are equipped with speed governing return stirring device (8).
8. integrated sewage water denitrogenation dephosphorizing reactor according to claim 1, is characterized in that: oxygen-starved area (2) are provided with flow deflector (9).
9. integrated sewage water denitrification dephosphorization technique method, is characterized in that: step comprises:
A, former water enter anaerobic zone (1) through peristaltic pump, muddy water mixed solution is formed after fully being mixed with former water by backflow sewage by speed governing return stirring device (8), muddy water mixed solution enters oxygen-starved area (2), again from oxygen-starved area (2) annular return to anaerobic zone (1), then enter in aerobic overcurrent district (4) and form circulation cycle;
B, aerobic aeration district (3) adopt Airlift aeration to carry out oxygenation to muddy water mixed solution, promote the turbulent flow on muddy water mixed solution longitudinally, make muddy water mixed solution Homogeneous phase mixing; The muddy water mixed solution of oxygenation flow to the settling tank (60) of settling region (6) from aerobic overcurrent district (4), mud is carried out in the interior muddy water layering of settling tank (60), water is separated, water is discharged from the overflow weir on settling tank (60) top, and mud automatic back flow is to aerobic overcurrent district (4).
10. integrated sewage water denitrification dephosphorization technique method according to claim 9, it is characterized in that: former water flooding velocity is 20L/h, hydraulic detention time is 20h, sludge age is 15 days, and the mass concentration of the overflow weir discharge water from settling tank (60) top after mud, water are separated is 5 ~ 15mg/L.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698025A (en) * | 2017-11-08 | 2018-02-16 | 中机国际工程设计研究院有限责任公司 | Integrated sewage water denitrification dephosphorization apparatus |
| CN108002537A (en) * | 2018-01-31 | 2018-05-08 | 武汉都市环保工程技术股份有限公司 | Oxidation ditch integrated sewage treating apparatus and system |
| CN108358314A (en) * | 2018-03-08 | 2018-08-03 | 中国市政工程中南设计研究总院有限公司 | Sludge closes on reflux bioreactor facility in combination and application |
| CN109231678A (en) * | 2018-10-16 | 2019-01-18 | 湖南清之源环保科技有限公司 | Integrated sewage processing equipment and method |
| CN112777742A (en) * | 2019-11-11 | 2021-05-11 | 四川轻化工大学 | Integrated backflow-free A2O equipment based on fluidized bed |
| CN113880237A (en) * | 2021-10-27 | 2022-01-04 | 肇庆市鹏凯环保装备有限公司 | Concentric circle internal circulation aerobic reactor |
| CN114057296A (en) * | 2021-12-01 | 2022-02-18 | 北京泷涛环境科技有限公司 | Phototrophic enhanced biological system and biological nitrogen and phosphorus removal method |
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| CN113880237A (en) * | 2021-10-27 | 2022-01-04 | 肇庆市鹏凯环保装备有限公司 | Concentric circle internal circulation aerobic reactor |
| CN114057296A (en) * | 2021-12-01 | 2022-02-18 | 北京泷涛环境科技有限公司 | Phototrophic enhanced biological system and biological nitrogen and phosphorus removal method |
| CN114057296B (en) * | 2021-12-01 | 2023-08-25 | 北京泷涛环境科技有限公司 | Phototrophic enhanced biological system and biological denitrification and dephosphorization method |
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Application publication date: 20150624 |