CN105858892A - Multi-stage AO process biological pool dross removal device - Google Patents
Multi-stage AO process biological pool dross removal device Download PDFInfo
- Publication number
- CN105858892A CN105858892A CN201610409252.9A CN201610409252A CN105858892A CN 105858892 A CN105858892 A CN 105858892A CN 201610409252 A CN201610409252 A CN 201610409252A CN 105858892 A CN105858892 A CN 105858892A
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- CN
- China
- Prior art keywords
- zone
- weir plate
- adjustable weir
- partition wall
- removal device
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a multi-stage AO process biological pool dross removal device. A biological pool comprises an anaerobic zone, an anoxic zone and an aerobic zone which are separated by a fixed partition wall. The anaerobic zone and the anoxic zone are communicated with the aerobic zone through a water outlet channel formed in the fixed partition wall. The multi-stage AO process biological pool dross removal device is characterized in that the fixed partition wall is the underwater fixed partition wall with the top edge in water, an adjustable weir plate capable of moving up and down along weir plate sliding rails fixedly arranged at the two ends of the underwater fixed partition wall is arranged on the side of the anaerobic zone or the anoxic zone, the portion, corresponding to the water outlet channel of the underwater fixed partition wall, of the adjustable weir plate perpendicularly extends downwards to form a water interception plate, the two ends of the adjustable weir plate are each hinged to the lower end of a vertical screw through a connecting shaft, the upper end of each vertical screw is connected with a linear screw motor, the two linear screw motors are connected to a controller which controls the two linear screw motors to be turned on and off synchronously, the upper edge of the adjustable weir plate in the dross removal state is flush with the underwater fixed partition wall, and the upper edge of the adjustable weir plate not in the dross removal state is higher than the liquid level of the anaerobic zone or the anoxic zone.
Description
Technical field
The present invention relates to sewage treatment process facility field, particularly relate to a kind of Multilevel A/O Technology biological tank and float
Slag removal device.
Background technology
In recent years, Multilevel A/O Technology puies forward the emphasis technique of mark transformation as urban wastewater treatment firm denitrogenation dephosphorizing,
It is applied in whole nation large amount of sewage treatment plant, and much mutation technique occurs, work as multistage in multistage
Skill, improved cascade AO technique etc., be provided with the treatment effect of stabilizing energy-saving.Wherein, multistage AO work
Skill is typically composed in series with aerobic zone with 2 grades to 4 grades of continuous print anoxic zones respectively by anaerobic zone.Wherein,
Anaerobic zone and anoxic zone all carry out strict region disconnecting by partition wall, prevent that the mixed liquor of aerobic zone is short to be flow to
Enter, bring dissolved oxygen into, destroy anaerobism and the state of anoxia.
Additionally, in most Multilevel A/O Technologies run, the problem that the most generally there is scum silica frost accumulation.This be by
A is far surpassed in the anaerobic zone of Multilevel A/O Technology and anoxic zone quantity and area2The technique such as O, oxidation ditch, internal
Waterpower hybrid mode typically use dividing plate or agitator., generally there is hydraulic flow state dead in both modes
Angle, can produce scum silica frost, the accumulation of mud scum in anaerobic zone and anoxic zone, not only account for pond and hold, and distribute smelly
Taste, pollution environment, be repugnant to the eye, and does not the most clear up a large amount of accumulation, can cause hydraulic detention time
Shorten, affect Nitrogen/Phosphorus Removal, and the artificial of scum silica frost, mud scum drags for clearly the cost that wastes time and energy, improve
Operation cost.
Summary of the invention
Present invention is primarily targeted at for the problems referred to above, it is provided that one can be adjusted automatically according to hydraulics
The Multilevel A/O Technology biological tank scum silica frost removal device of scum silica frost in whole removal Aeration tank, thus exempt time-consuming expense
Artificial the dragging for clearly of power expense goods, materials and equipments, improves environment, improves Nitrogen/Phosphorus Removal, the process quality of lifting sewage,
And promote the raising of the automatic control level of Multilevel A/O Technology.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Multilevel A/O Technology biological tank scum silica frost removal device, described biological tank includes by multiple stationary partitions
Separate anaerobic zone, anoxic zone and aerobic zone, described anaerobic zone, anoxic zone by be located at each self-retaining every
Exhalant canal on wall is respectively communicated with aerobic zone, it is characterised in that described stationary partition is for pushing up along not in water
Stationary partition under water, the stationary partition under water of anaerobic zone and side, anoxic zone is arranged along under water fixing every
The weir plate slide rail adjustable weir plate moving up and down that wall two ends are fixedly mounted with, described adjustable weir plate is at corresponding described water
The vertical downward formation in exhalant canal position of lower stationary partition intercepts water plate, and adjustable weir plate two ends are respectively by even
Spindle is hinged with a vertical screw rod lower end, and described vertical screw rod upper end connects linear screw motor, two institutes
State linear screw motor to be all connected to control its controller synchronizing start and stop；Adjustable weir plate under slagging-off state,
Flush along height with stationary partition under water on it；Adjustable weir plate under non-slagging-off state, right along exceeding on it
The anaerobic zone answered or anoxic zone liquid level.
Described stationary partition top is along less than corresponding anaerobic zone or anoxic zone liquid level 30-40cm.
The intercepter plate area of described adjustable weir plate accounts for the 20%-30% of described exhalant canal cross-sectional area, non-slagging-off
The upper edge of the adjustable weir plate under state exceeds anaerobic zone or the anoxic zone liquid level 5-10cm of correspondence.
It is horizontal linear shape that waterside is crossed at the top of described adjustable weir plate.
The invention has the beneficial effects as follows: compared with the prior art, utilize pulling flow type biological tank fluidised form principle to enter
Mobile state baffle design, can be along under water by arranging on anaerobic zone and side, anoxic zone stationary partition under water
The adjustable weir plate that the weir plate slide rail that stationary partition two ends are fixedly mounted with moves up and down, makes the height of stationary partition under water
Degree becomes adjustable, makes scum silica frost mud scum get rid of in time, solves biological tank in Multilevel A/O Technology and accumulates scum silica frost
Problem, it is achieved automatically adjust removal anaerobic zone and the effect of anoxic zone scum silica frost according to hydraulics.Thus,
Exempt the artificial of expense goods, materials and equipments of wasting time and energy to drag for clearly, improve environment, improve Nitrogen/Phosphorus Removal, lifting sewage
Process quality.During work, by the linear screw motor at adjustable weir plate two ends control its promote and decline
Highly, according to the accumulation time of scum silica frost, set the interval time of linear screw motor, thus promote
The raising of the automatic control level of Multilevel A/O Technology, can realize full-automatic unmanned control on duty.The present invention
Non-stop production reformation can be carried out on existing Process ba-sis, simple for structure, be suitable at multistage AO dirty
Water treatment technology field is promoted.
Accompanying drawing explanation
Fig. 1 is structural representation and the application thereof of the present invention；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the structural representation at connecting shaft position.
In figure: 1 linear screw motor, 2 vertical screw rods, 3 connecting shafts, 4 adjustable weir plates, 41 intercept water plate,
5 weir plate slide rails, 6 exhalant canals, 7 stationary partitions, 8 water inlets, 9 anaerobic zones or the liquid level of anoxic zone,
10 controllers, 11 mounting rings, I anaerobic zone, II anoxic zone, III aerobic zone.
Below in conjunction with drawings and Examples to the detailed description of the invention.
Detailed description of the invention
Fig. 1-3 illustrates a kind of Multilevel A/O Technology biological tank scum silica frost removal device and application, described biological tank
Including the anaerobic zone I separated by stationary partition 7, anoxic zone II and aerobic zone III, described anaerobic zone I,
Anoxic zone II is respectively communicated with aerobic zone III by the exhalant canal 6 being located on respective stationary partition 7, due to
The present invention provide Multilevel A/O Technology biological tank scum silica frost removal device in biological tank anaerobic zone I, anoxic zone II
Application identical, therefore, Fig. 1, Fig. 2 have employed simple schematic diagram.
It is a feature of the present invention that described stationary partition 7 is edge, the top not stationary partition under water in water, execute
In work, this is less than corresponding anaerobic zone or anoxic zone liquid level 30-40cm in edge, stationary partition top under water.
The stationary partition under water of anaerobic zone I and side, anoxic zone II is arranged along stationary partition two ends under water solid
The weir plate slide rail 5 adjustable weir plate 4 moving up and down of dress, it is level that waterside is crossed at the top of described adjustable weir plate
Linear type, and adjustable weir plate 4 described in correspondence under water the position of the exhalant canal 6 of stationary partition 7 vertical
Downward formation intercepts water plate 41, in practice of construction, the area of the intercepter plate 41 of adjustable weir plate 4 account for described in go out
The 20%-30% of aquaporin cross-sectional area.
Adjustable weir plate 4 two ends respectively by connecting shaft 3 hinged with vertical screw rod 2 lower end, described vertically
Screw rod 2 upper end connects linear screw motor 1, and two linear screw motors 1 are all connected to control it and synchronize start and stop
Controller 10.See Fig. 3, in the present embodiment, at 4 liang of vertex angle parts of adjustable weir plate and vertical screw rod 2
Bottom is all connected mounting ring 11, and connecting shaft 3 have employed bolt through two mounting ring 11 nut lockings,
Realize the hinged of adjustable weir plate 4 and vertical screw rod 2.It is articulated and connected and makes the rise and fall of adjustable weir plate 4 carry
High flexibility.Controller 10 can use PLC programmable controller, also can use and continue based on the time
The control circuit of electrical equipment realizes the synchronization on off control to two linear screw motors 1.Thus control adjustable
Weir plate 4 steadily lifts.Adjustable weir plate 4 under slagging-off state, it flushes along height with stationary partition under water；
Adjustable weir plate under non-slagging-off state, along exceeding corresponding anaerobic zone or anoxic zone liquid level on it, reality should
In with, the upper edge of the adjustable weir plate under non-slagging-off state exceeds anaerobic zone or the anoxic zone liquid level of correspondence
5-10cm。
When biological tank runs, treatment sewage enters biological tank anaerobic zone I, anoxic zone II from water inlet 8,
Owing to scum silica frost, mud scum are as what AO process operation was gradually piled up, under non-slagging-off state, by controlling
Device 10 controls linear screw motor 1 and rotates counterclockwise, and vertical screw rod 2 is exercised the upper edge of adjustable weir plate 4
Exceeding the liquid level 9 of anaerobic zone I or anoxic zone II, the upper edge being adjusted to adjustable weir plate exceeds the anaerobic zone of correspondence
Or anoxic zone liquid level 5-10cm.At this moment, the function of adjustable weir plate 4 is equivalent to increase stationary partition under water
Height, thus stop anaerobic zone I or anoxic zone II fluid flow into aerobic zone III.Along with AO technique is transported
OK, scum silica frost, mud scum are piled up, and now start slagging-off operation, under controller 10 controls, control straight line spiral shell
Bar motor 1 turns clockwise, vertical screw rod exercise for 2 times on adjustable weir plate 4 along height with under water fixing every
Wall 7 top is along flushing, and now, liquid level is higher than the edge, top of stationary partition under water, simultaneously as the plate 41 that intercepts water
The descending water outlet section making exhalant canal 6 diminishes, and surface flow rate of water flow promotes, and scum silica frost is progressively to follow-up work
Skill section aerobic zone III is flowed out, and is ultimately discharged into sedimentation tank and carries out the separation removal of scum silica frost.
It can be seen that the present invention utilizes pulling flow type biological tank fluidised form principle to carry out dynamic baffle design, logical
Cross on the stationary partition under water of anaerobic zone and side, anoxic zone, arrange what stationary partition two ends under water, edge were fixedly mounted with
Weir plate slide rail 41 adjustable weir plate 4 moving up and down, makes the height of stationary partition under water become adjustable,
Thus solve the problem that in Multilevel A/O Technology, biological tank accumulates scum silica frost.During work, by adjustable weir plate two
The linear screw motor 1 of end controls its height promoting and declining；According to the accumulation time of scum silica frost, if
The interval time of boning out screw rod motor, thus can realize full-automatic unmanned control on duty.
The present invention, can carry out non-stop production reformation on existing Process ba-sis, simple for structure, suitable
In promoting in multistage AO sewage treatment process field.
Any pro forma restriction made by above content not structure, shape and material to the present invention.All
Be based on any simple modification that above example made by the technical spirit of the present invention, equivalent variations with
Modify, all still fall within the range of technical solution of the present invention.
Claims (5)
1. a Multilevel A/O Technology biological tank scum silica frost removal device, described biological tank includes by multiple fixing
Anaerobic zone, anoxic zone and the aerobic zone that partition wall separates, described anaerobic zone, anoxic zone are by being located at the most admittedly
The exhalant canal determined on partition wall is respectively communicated with aerobic zone, it is characterised in that described stationary partition for top along not in
Stationary partition under water in water, is arranged along solid under water on the stationary partition under water of anaerobic zone and side, anoxic zone
Determining the weir plate slide rail adjustable weir plate moving up and down that partition wall two ends are fixedly mounted with, described adjustable weir plate is in corresponding institute
Stating the vertical downward formation in exhalant canal position of stationary partition under water to intercept water plate, adjustable weir plate two ends lead to respectively
Cross connecting shaft hinged with a vertical screw rod lower end, described vertical screw rod upper end connection linear screw motor, two
Individual described linear screw motor is all connected to control its controller synchronizing start and stop；Under slagging-off state can weir transfer
Plate, it flushes along height with stationary partition under water；Adjustable weir plate under non-slagging-off state, along high on it
Go out anaerobic zone or the anoxic zone liquid level of correspondence.
A kind of Multilevel A/O Technology biological tank scum silica frost removal device the most according to claim 1, it is special
Levy and be that described stationary partition top is along less than corresponding anaerobic zone or anoxic zone liquid level 30-40cm.
A kind of Multilevel A/O Technology biological tank scum silica frost removal device the most according to claim 1 and 2,
It is characterized in that the intercepter plate area of described adjustable weir plate accounts for the 20%-30% of described exhalant canal cross-sectional area,
The upper edge of the adjustable weir plate under non-slagging-off state exceeds anaerobic zone or the anoxic zone liquid level 5-10cm of correspondence.
A kind of Multilevel A/O Technology biological tank scum silica frost removal device the most according to claim 3, it is special
Levy that to be that waterside is crossed at the top of described adjustable weir plate be horizontal linear shape.
A kind of Multilevel A/O Technology biological tank scum silica frost removal device the most according to claim 1 and 2,
It is characterized in that waterside is crossed at the top of described adjustable weir plate is horizontal linear shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610409252.9A CN105858892A (en) | 2016-06-06 | 2016-06-06 | Multi-stage AO process biological pool dross removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610409252.9A CN105858892A (en) | 2016-06-06 | 2016-06-06 | Multi-stage AO process biological pool dross removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105858892A true CN105858892A (en) | 2016-08-17 |
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ID=56649387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610409252.9A Pending CN105858892A (en) | 2016-06-06 | 2016-06-06 | Multi-stage AO process biological pool dross removal device |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585207A (en) * | 2018-07-16 | 2018-09-28 | 北京北排水务设计研究院有限公司 | A kind of flow-stopping plate and its application method avoiding aerobic tank dissolved oxygen reflux anoxic pond |
| CN115340187A (en) * | 2022-08-25 | 2022-11-15 | 北京工业大学 | Connecting device and method for preventing back-mixing of sewage treatment structures |
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| KR20080097610A (en) * | 2007-05-02 | 2008-11-06 | 주식회사 포스코 | Apparatus for lifting weir of meniscus shield in the twin roll type strip caster |
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| CN205687645U (en) * | 2016-06-06 | 2016-11-16 | 天津市华水自来水建设有限公司 | A kind of Multilevel A/O Technology biological tank scum silica frost removal device |
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Patent Citations (6)
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| KR20080097610A (en) * | 2007-05-02 | 2008-11-06 | 주식회사 포스코 | Apparatus for lifting weir of meniscus shield in the twin roll type strip caster |
| CN202643368U (en) * | 2012-03-06 | 2013-01-02 | 同济大学 | Adjustable effluent weir |
| CN202682866U (en) * | 2012-04-11 | 2013-01-23 | 青岛银河环保股份有限公司 | Water outlet weir |
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| CN205687645U (en) * | 2016-06-06 | 2016-11-16 | 天津市华水自来水建设有限公司 | A kind of Multilevel A/O Technology biological tank scum silica frost removal device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108585207A (en) * | 2018-07-16 | 2018-09-28 | 北京北排水务设计研究院有限公司 | A kind of flow-stopping plate and its application method avoiding aerobic tank dissolved oxygen reflux anoxic pond |
| CN108585207B (en) * | 2018-07-16 | 2024-01-02 | 北京北排水务设计研究院有限公司 | Baffle plate for preventing dissolved oxygen in aerobic tank from flowing back to anoxic tank and application method of baffle plate |
| CN115340187A (en) * | 2022-08-25 | 2022-11-15 | 北京工业大学 | Connecting device and method for preventing back-mixing of sewage treatment structures |
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Application publication date: 20160817 |