CN201334417Y - Central island type-airlift type aeration integrated circulatory wastewater treatment device for biological reactor - Google Patents
Central island type-airlift type aeration integrated circulatory wastewater treatment device for biological reactor Download PDFInfo
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- CN201334417Y CN201334417Y CNU2008202068615U CN200820206861U CN201334417Y CN 201334417 Y CN201334417 Y CN 201334417Y CN U2008202068615 U CNU2008202068615 U CN U2008202068615U CN 200820206861 U CN200820206861 U CN 200820206861U CN 201334417 Y CN201334417 Y CN 201334417Y
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Abstract
A central island type-airlift type aeration integrated circulatory wastewater treatment device for a biological reactor adopts the structure that a D-type sedimentation tank (11) is arranged in the middle position of an O-type external wall (1); a C-type partition wall (3) is arranged between the arc-shaped surface side of the sedimentation tank (11) and the external wall (1); an aerobic zone (5) is formed between the C-type partition wall (3) and the sedimentation tank (11); an anoxic zone (2) is formed between the C-type partition wall (3) and the external wall (1); a partition wall (14) is arranged on the side of plane surface of the sedimentation tank (11); a mixing zone (10) is formed between the partition wall (14) and the sedimentation tank (11); an anaerobic zone (9) is formed between the partition wall (14) and the external wall (1); an overflow wall (6) is arranged in the aerobic zone (5); an aerobic aeration zone is formed between the overflow wall (6) and the C-type partition wall (3); and an aerobic overflow zone is formed between the overflow wall (6) and the sedimentation tank (11). The utility model has the advantages of compact and simple structure, very simple and convenient operation and maintenance, low labor requirement, and easy realization of remote automatic control.
Description
Technical field
The utility model relates to the central island formula-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment.
Background technology
Integrated oxidation ditch (Integrated Oxidation Ditch) claim the Round Sump oxidation ditch again.In a broad sense, integrated oxidation ditch is exactly an oxidation ditch of not establishing second pond and mud reflux separately.Oxidation ditch on this meaning comprises the Pasveer oxidation ditch of early stage intermittent operation and the alternative expression oxidation ditch that grows up in Denmark the seventies in 20th century.The oxidation ditch of narrow sense is meant the big volume and the water surface that makes full use of oxidation ditch, under the situation that does not influence the normal operation of oxidation ditch, structure by improving the oxidation ditch subregion or certain device is set, the oxidation ditch that the mud-water separation process is finished in ditch in ditch.This notion was proposed by the U.S. at first in early 1980s, and this type oxidation ditch is referred to as ICC (Interchannel Clarifier) type oxidation ditch, and up to the present, the integrated oxidation ditch of nearly hundred these types has been had in the U.S..Compare with other oxidation ditches, the integrated oxidation ditch treatment effect is not fine, and major cause is: one because the integrated design of solid-liquid separator and oxidation irrigation canals and ditches makes water outlet be subject to the influence of water quality, water yield fluctuation, influences the water outlet effect; Its two, the design and installation of solid-liquid separator are had relatively high expectations, but are not often reached requirement on the engineering.But integrated oxidation ditch also has remarkable advantage: owing to saved second pond, floor space is little, and mud refluxes automatically, manage more convenient, less energy consumption, cost of investment and working cost are lower.So this technology is particularly suitable for promoting under the sanitary sewage disposal of the sewage disposal of small city and samll cities and towns, tourist attractions and analogue.
Summary of the invention
The purpose of this utility model provides the integrated circulating biological reactor wastewater treatment equipment that a kind of each functional zone subregion is obvious, floor space is relatively little and running cost is lower.
To achieve the above object, the technical solution adopted in the utility model is:
A kind of central island formula-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, the exterior wall the inside medium position of O type has the settling tank of D type, between settling tank 11 arcs, one side and the exterior wall C type partition wall is arranged, the zone that forms between C type partition wall and the settling tank is an aerobic zone, and the zone that forms between the exterior wall is the oxygen-starved area, settling tank planar shaped one side has a partition wall, the zone that forms between partition wall and the settling tank is the mixing zone, and the zone that forms between the exterior wall is an anaerobic zone, the overcurrent wall is arranged in aerobic zone, form the aerobic aeration district between overcurrent wall and the C type partition wall, and form aerobic overcurrent district between the settling tank, be laid with aeration tube in bottom, aerobic aeration district, be positioned at the aerobic overcurrent district of the same side, the inlet of oxygen-starved area and anaerobic zone is separately installed with the stirring impeller.
Described settling tank is supported built on stilts by pillar stiffener.
This settling tank is positioned under one side direction of mixing zone and is extended with the partition wall that links to each other with the exterior wall base plate, and there is an inclined-plane that extends inwards the partition wall inboard.
Described settling tank bottom is the awl bucket that is arranged in parallel, and the awl bucket is for falling platform-type structure.
The utlity model has following advantage:
1. compact construction of the present utility model, succinct, operation is very easy with maintenance, and required labor force is few, and is easy to realize remote auto control.
2. settling tank of the present utility model is installed in the aerobic overcurrent district, being D shape lays, need not the outer second pond of building, the platform-type structure of falling of bucket is bored in the settling tank bottom, can effectively alleviate and reduce the turbulent flow influence of bottom flow, simultaneously because the negative pressure that bottom flow produces in flowing makes mud can realize having reduced floor space and working cost from refluxing settling tank, and help keeping the dissolved oxygen of water outlet, guarantee effluent quality.And aeration tube places bottom, aerobic aeration district and lays between two C partition walls, and aeration is even, can reduce the turbulence effect of aeration to settling tank, also can reduce the resistance of fluid flow.
3. aerobic, anoxic of the present utility model, functional zone subregions such as anaerobism are clear and definite, and control helps finishing synchronously organic removal and biological carbon and phosphorous removal easily.At aerobic zone, mixed solution has been an oxygen condition, degradation of organic substances and ammonia nitrogen is oxidized to nitric nitrogen (nitrate nitrogen and nitrite nitrogen) effectively, and realize that mud absorbs phosphorus and then dephosphorization.Being anoxic condition in the oxygen-starved area, is carbon source with the organism, under the effect of denitrifying bacteria is nitrogen and removing from water with nitrate-nitrogen reduction.Anaerobic zone can degrade quite a few COD and organism, and realize that mud releases phosphorus.
4. the utility model adopts unique air lift type mode aeration.
5. the utility model helps mixed solution repeatedly circulation between aerobic-anoxic-anaerobism, and refluxes automatically and realize the denitrogenation dephosphorizing purpose.
Description of drawings
Fig. 1 is a floor map of the present utility model;
Fig. 2 is a diagrammatic cross-section of the present utility model.
Embodiment
See figures.1.and.2, a kind of central island formula-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, the exterior wall 1 the inside medium position of O type has the settling tank 11 of D type, between settling tank 11 arcs, one side and the exterior wall 1 C type partition wall 3 is arranged, C type partition wall 3 is close to base plate 16, and the zone that forms between the settling tank 11 is an aerobic zone 5, and the zone that forms between the exterior wall 1 is oxygen-starved area 2, settling tank 11 planar shaped one side has a partition wall 14, the zone that forms between partition wall 14 and the settling tank 11 is mixing zone 10, and the zone that forms between the exterior wall 1 is an anaerobic zone 9, overcurrent wall 6 is arranged in aerobic zone 5, form the aerobic aeration district between overcurrent wall 6 and the C type partition wall 3, be crescent, and form aerobic overcurrent district between the settling tank 11, be laid with aeration tube 4, be positioned at the aerobic overcurrent district of the same side in bottom, aerobic aeration district, the inlet of oxygen-starved area 2 and anaerobic zone 9 is separately installed with and stirs impeller 7.
Described settling tank 11 is supported built on stilts by pillar stiffener 19, be the window that settling tank 11 and aerobic overcurrent district 5 link between the pillar stiffener 19.This settling tank 11 is positioned at and is extended with the partition wall 18 that links to each other with exterior wall base plate 16 under 10 1 side direction of mixing zone, and there is an inclined-plane 17 that extends inwards partition wall 18 inboards, and the horizontal sextant angle on this inclined-plane 17 is 55～65 °.Settling tank 11 bottoms are the awl bucket 12 that is arranged in parallel, and awl bucket 12 is for falling platform-type structure, and its conical surface and horizontal plane angle are 60～75 °.
Water-in 8 is opened on exterior wall 1, corresponding anaerobic zone 9 tops, and overflow weir 15 is arranged at settling tank 11 tops, has water outlet 13 on the overflow weir 15.
Principle of work of the present utility model is: sewage enters the anaerobic zone 9 that microbial population (active sludge) is housed by water-in 8, enters into oxygen-starved area 2 under the promotion of anaerobic zone 9 ingress stirring impeller 7.2 mixed solutions are anoxic condition in the oxygen-starved area, under the effect of denitrifying bacteria are nitrogen and removing from water with nitrate-nitrogen reduction; Denitrification is a carbon source with the organism, as COD, therefore can simultaneously partial organic substances be removed; A part enters mixing zone 10 and mixes with mixed solution from aerobic overcurrent district then, and a part enters anaerobic zone 9 and carries out the release of mud phosphorus.In the aerobic aeration district, carry out oxygenic aeration by the aeration tube of laying between partition wall 3 and the internal partition wall 6 outside the edge that is installed in the bottom 4, make mixed solution be oxygen condition, carry out the nitration reaction of organic matter removal and ammonia nitrogen and realize that thereby mud absorbs the phosphorus dephosphorization in aerobic zone, nitration product then is circulated to and carries out denitrification in the oxygen-starved area 2 and remove nitrogen.
A part of mixed solution enters settling tank 11 by the awl bucket 12 of settling tank 11 bottoms in aerobic overcurrent district simultaneously, absorption at the sludge suspension layer, carry out solid-liquid separation under the action of gravity of collision and active sludge self, mixed solution is after solid-liquid separation, discharge by water outlet 13 through overflow weir 15 with the supernatant liquor of water inlet equivalent, mud is then under the drive of self gravitation and bottom streaming fluid, certainly be back in the aerobic overcurrent district by awl bucket 12, and with mixed solution under the promotion of stirring impeller 7 in this device the aerobic-anoxic-anaerobic of realization repeatedly circulate, sewage is purified.
Claims (7)
1, a kind of central island formula-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, exterior wall [1] the inside medium position that it is characterized in that 0 type has the settling tank [11] of D type, between settling tank [11] arc one side and the exterior wall [1] C type partition wall [3] is arranged, the zone that forms between C type partition wall [3] and the settling tank [11] is aerobic zone [5], and the zone that forms between the exterior wall [1] is oxygen-starved area [2], settling tank [11] planar shaped one side has a partition wall [14], the zone that forms between partition wall [14] and the settling tank [11] is mixing zone [10], and the zone that forms between the exterior wall [1] is anaerobic zone [9], overcurrent wall [6] is arranged in aerobic zone [5], form the aerobic aeration district between overcurrent wall [6] and the C type partition wall [3], and form aerobic overcurrent district between the settling tank [11], be laid with aeration tube [4] in bottom, aerobic aeration district, be positioned at the aerobic overcurrent district of the same side, the inlet of oxygen-starved area [2] and anaerobic zone [9] is separately installed with and stirs impeller [7].
2, the central island formula according to claim 1-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment is characterized in that the aerobic aeration district that forms between overcurrent wall [6] and the C type partition wall [3] is a crescent.
3, the central island formula according to claim 1-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, it is built on stilts to it is characterized in that described settling tank [11] is supported by pillar stiffener [19].
4, the central island formula according to claim 3-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, it is characterized in that this settling tank [11] is positioned at is extended with the partition wall [18] that links to each other with exterior wall base plate [16] under [10] one side direction of mixing zone, and there is an inclined-plane [17] that extends inwards partition wall [18] inboard.
5, the central island formula according to claim 4-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment, the horizontal sextant angle that it is characterized in that this inclined-plane [17] is 55～65 °.
6, the central island formula according to claim 3-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment is characterized in that described settling tank [11] bottom is the awl bucket [12] that is arranged in parallel, and awl bucket [12] is for falling platform-type structure.
7, the central island formula according to claim 6-integrated circulating biological reactor of air lift type aeration wastewater treatment equipment is characterized in that the conical surface and the horizontal plane angle of awl bucket [12] is 60～75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202068615U CN201334417Y (en) | 2008-12-31 | 2008-12-31 | Central island type-airlift type aeration integrated circulatory wastewater treatment device for biological reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202068615U CN201334417Y (en) | 2008-12-31 | 2008-12-31 | Central island type-airlift type aeration integrated circulatory wastewater treatment device for biological reactor |
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| CN201334417Y true CN201334417Y (en) | 2009-10-28 |
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| CNU2008202068615U Expired - Fee Related CN201334417Y (en) | 2008-12-31 | 2008-12-31 | Central island type-airlift type aeration integrated circulatory wastewater treatment device for biological reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724827A (en) * | 2015-03-27 | 2015-06-24 | 杭州拓瑞博科技有限公司 | Integrated sewage nitrogen removal and phosphorous removal reactor and process method thereof |
| CN110668583A (en) * | 2019-11-19 | 2020-01-10 | 欧基（上海）环保科技有限公司 | Sewage treatment equipment and low-air-flow aeration device thereof |
-
2008
- 2008-12-31 CN CNU2008202068615U patent/CN201334417Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724827A (en) * | 2015-03-27 | 2015-06-24 | 杭州拓瑞博科技有限公司 | Integrated sewage nitrogen removal and phosphorous removal reactor and process method thereof |
| CN110668583A (en) * | 2019-11-19 | 2020-01-10 | 欧基（上海）环保科技有限公司 | Sewage treatment equipment and low-air-flow aeration device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20101231 |