CN201942599U - Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process - Google Patents
Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process Download PDFInfo
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- CN201942599U CN201942599U CN201120057365XU CN201120057365U CN201942599U CN 201942599 U CN201942599 U CN 201942599U CN 201120057365X U CN201120057365X U CN 201120057365XU CN 201120057365 U CN201120057365 U CN 201120057365U CN 201942599 U CN201942599 U CN 201942599U
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- Prior art keywords
- pond
- oxidation ditch
- sun
- pool
- reflux pump
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Abstract
The utility model discloses an integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process. The sewage treatment device comprises an A/A/O micro-aerating oxidation ditch, a settling pool and a sludge reflux pump station, wherein the A/A/O micro-aerating oxidation ditch sequentially consists of an anaerobic pool, an anoxic pool and an aerobic pool, a double-wall tubular pool body is composed by the A/A/O micro-aerating oxidation ditch, the settling pool and the sludge reflux pump station; the A/A/O micro-aerating oxidation ditch and the sludge reflux pump station are arranged in an annular pool defined by the tubular bottom and the double-wall of the double wall tubular pool body; and the settling pool is a circular pool composed of the tubular bottom and the inner side wall of the double wall tubular pool body. The sewage treatment device can realize the sharing of part of the pool body, has small investment, occupies small area and is convenient to operate and manage.
Description
Technical field
The utility model relates to a kind of waste disposal plant, especially relates to the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of a kind of A/A/0 of employing.
Background technology
At present, be used for the sewage treatment process that municipal sewage treatment has certain denitrogenation dephosphorizing effect and roughly be divided into two big classes: the Continuous Flow activated sludge process of the first kind for cutting apart by the space, as traditional A/A/O technology, the little oxidation ditch process that exposes to the sun of A/A/O (anaerobic/anoxic/aerobic biological denitrification dephosphorization process) etc.; The intermittent activated sludge process of second class for cutting apart by the time is as traditional SBR, ICEAS, CAST, Unitank, MSBR technology etc.Building up maximum sewage works treatment process in recent years is the little oxidation ditch process that exposes to the sun of A/A/O.The little oxidation ditch process flow process of exposing to the sun of A/A/O is: water inlet-anaerobic pond-anoxic pond-Aerobic Pond-settling tank-water outlet; Existing anaerobic pond-anoxic pond-Aerobic Pond is a ring-type baffling pool type, have pulling flow type and complete hybrid-type fluidised form concurrently, anti impulsion load has also made full use of micro-pore aeration oxygenation mechanism, has advantages such as efficient height, Chi Shenda, stable effluent quality, working cost be low.Aerobic Pond portion water internal reflux is to anoxic pond, settling tank mud is back to anaerobic pond by the sludge reflux pump station, anoxic pond and Aerobic Pond are in structures, mixed solution internal reflux equipment that need not be special-purpose, operation and management control are convenient, flexible, dephosphorization removing nitric efficiency is also very high, therefore is used widely.
But because each pond body is built separately, the weak point of existence is: taken the part land used between (1) pond body and the pond body, floor space is big; (2) increased the pipe connecting between pond body and the pond body and the investment of cable, implemented comparatively difficulty for some less-developed middle samll cities and towns; (3) do not have shared body of wall, body of wall need be considered the bidirectional stress of body of wall, has increased the thickness of body of wall; (4) operational management inconvenience.
The utility model content
The purpose of this utility model just provides the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of a kind of A/A/O of employing, realizes that part pond body is shared, and its investment is little, floor space is little, operational management is convenient.
The utility model realizes that the technical solution of above-mentioned purpose is: the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of a kind of A/A/O of employing, comprise little oxidation ditch and the settling tank of exposing to the sun of A/A/O, the sludge reflux pump station, the little oxidation ditch that exposes to the sun of described A/A/O is successively by anaerobic pond, anoxic pond, Aerobic Pond is formed, it is characterized in that: little oxidation ditch and the settling tank of exposing to the sun of described A/A/O, the sludge reflux pump station constitutes pair of lamina wall tubular pond body, described A/A/O is little to expose to the sun in the annular pool that oxidation ditch and sludge reflux pump erect-position constitute between the tube end of double wall tubular pond body and double wall, described settling tank is the circular pond that the tube end and inner side-wall constitute, the part pool wall of the shared settling tank of double walled inner side-wall of the little oxidation ditch that exposes to the sun of A/A/O.
On the basis of the above, the utility model can also be done further improvement:
Described sludge reflux pump station, anaerobic pond, anoxic pond and Aerobic Pond join by circulation before and after counterclockwise order is in annular pool successively.
Described anaerobic pond, anoxic pond, Aerobic Pond are ring-type baffling pool type, are provided with training wall in the pond of this ring-type baffling pool type.
Be provided with backflow channel between described Aerobic Pond and the anoxic pond, water channel is provided with the swirling recirculation flow door.
The circumferential end wall at described sludge reflux pump station is the linear pattern pool wall, and this sludge reflux pump station is nearly orthogonal pond body.
Be provided with mud return line in the described settling tank, described sludge reflux pump station is communicated with settling tank by mud return line, and the mud in the settling tank can flow to the sludge reflux pump station through mud return line.
Compared with prior art, the utlity model has following advantage:
1.A/A/O building jointly of little oxidation ditch that exposes to the sun, settling tank and sludge reflux pump station, part pond body is shared, has saved construction investment and has reduced floor space;
2. save pipe connecting and cable between the Chi Yuchi, reduced capital fund;
3. reduced the thickness and the difficulty of construction of body of wall, built fast;
4. technical process is short, and operational management is convenient.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
1. anaerobic pond, 2. anoxic pond, 3. Aerobic Pond, 4. settling tank, 5. sludge reflux pump station, 6. plug-flow agitator under water, 7. micro-hole aerator, 8. swirling recirculation flow door, 9. scraping and sucking machine, 10. mud return line, 11. sludge reflux pumps, 12. residual sludge pump, 13. training walls.
Embodiment
As shown in Figure 1, the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of a kind of A/A/O of employing, it comprises the little oxidation ditch that exposes to the sun of A/A/0, settling tank 4, sludge reflux pump station 5, the little oxidation ditch that exposes to the sun of A/A/0 is made up of anaerobic pond 1, anoxic pond 2, Aerobic Pond 3, anaerobic pond, anoxic pond, Aerobic Pond are ring-type baffling pool type, are provided with training wall in the pond of this ring-type baffling pool type.By adopting this ring-type baffling pool type, between the Chi Yuchi current transition smooth and easy, it is minimum that resistance is reduced to, and sewage one is entered in the pond, can be at short notice with the pond in the muddy water short mix react.By to angle of rake reasonable Arrangement, under the situation that does not increase power, mixed solution is back to anoxic pond from Aerobic Pond carries out denitrification denitrogenation simultaneously, thereby saved the working cost of inner circulating reflux pump.
A/A/O is little, and expose to the sun oxidation ditch and settling tank, sludge reflux pump station constitutes pair of lamina wall tubular pond body, A/A/O is little to expose to the sun in the annular pool that oxidation ditch and sludge reflux pump erect-position constitute between the tube end of double wall tubular pond body and double wall, settling tank is the circular pond that the tube end and inner side-wall constitute, the part pool wall of the shared settling tank of double walled inner side-wall of the little oxidation ditch that exposes to the sun of A/A/O.
The circumferential end wall at sludge reflux pump station is the linear pattern pool wall, and whole sludge reflux pump station is nearly orthogonal pond body.Sludge reflux pump station, anaerobic pond, anoxic pond and Aerobic Pond join by circulation before and after counterclockwise order is in annular pool successively,
Be provided with plug-flow agitator 6, micro-hole aerator 7 and swirling recirculation flow door 8 under water in the little oxidation ditch that exposes to the sun of A/A/0; Scraping and sucking machine 9 is arranged in the settling tank, to the sludge reflux pump station mud return line 10 is arranged from settling tank, the sludge reflux pump station is communicated with settling tank by mud return line; Sludge reflux pump 11 and residual sludge pump 12 are arranged in the sludge reflux pump station.Also be provided with training wall 13 in the little oxidation ditch that exposes to the sun of A/A/O, can reduce hydraulic loss; The plug-flow agitator is kept the interior mixed solution flow velocity of ditch and is not less than 0.3m/s in order to guarantee sewage and mud uniform mixing and to prevent sludge settling under water; The function that micro-hole aerator has oxygen supply, prevents sludge settling and organism/microorganism/oxygen three thorough mixing is contacted; Be provided with backflow channel between Aerobic Pond and the anoxic pond, the swirling recirculation flow door is set on water channel, the open degree of swirling recirculation flow door can be controlled the quantity of reflux size of Aerobic Pond to the anoxic pond internal reflux; Be provided with scraping and sucking machine in the settling tank, the sludge reflux pump station is communicated with settling tank by mud return line, and mud flow to the sludge reflux pump station through mud return line under the effect of scraping and sucking machine.Sludge reflux pump is provided with sludge reflux pump in the station, and its major function is the active sludge that replenishes in the little oxidation ditch that exposes to the sun of A/A/O; Residual sludge pump is then dewatered residual sludge pump in the system to dewatering system.
When device work of the present utility model moves, mainly carry out the release of phosphorus at anaerobic pond, the concentration of the phosphorus of sewage is raise, deliquescent organism is absorbed the BOD density loss that makes in the sewage, part NH in addition by bacterium
3-N is removed because of the synthetic of cell, the NH in the sewage
3-N density loss.In anoxic pond, denitrifying bacteria utilizes the organism of sewage to do the C source, will bring a large amount of NO in the backflow mixed liquor into
3-N and NO
2-N reduces N
2Be discharged into air, because of BOD5 concentration continues to descend NO
3-N concentration descends significantly, and the variation of phosphorus is very little.In Aerobic Pond, organism is continued by the microbial biochemical oxidation to descend, and organic N then by nitrated, is made NH by ammonification
3-N concentration significantly descends, but along with nitrifying process makes NO
3-N concentration increases, and P also descends with fast speeds along with the excess ingestion of polyP bacteria.The water outlet of Aerobic Pond flows into settling tank, and under the effect of scraping and sucking machine, mud flow to the sludge reflux pump station through mud return line, and to anaerobic pond, anaerobic pond and Aerobic Pond are united and finished phosphorus removal functional by the sludge reflux pump pump.Excess sludge then dewaters by residual sludge pump pump to dewatering system.
By the sewage after the integrated sewage treating apparatus processing, the denitrogenation dephosphorizing identical, the process of degradation of organic substances have not only been finished with the little oxidation ditch process that exposes to the sun of A/A/O, sewage is purified, and reached that reduced investment, floor space are little, operational management effect easily.
Embodiment of the present utility model is not limited thereto; under the above-mentioned basic fundamental thought of the utility model prerequisite; according to modification, replacement or the change of the ordinary skill knowledge of this area and customary means, all within the utility model rights protection scope to the utility model other various ways that content is made.
Claims (6)
1. integrated sewage treating apparatus that adopts the little oxidation ditch process that exposes to the sun of A/A/O, comprise A/A/O little expose to the sun oxidation ditch and settling tank, sludge reflux pump station, the little oxidation ditch that exposes to the sun of described A/A/O is made up of anaerobic pond, anoxic pond, Aerobic Pond successively, it is characterized in that: described A/A/O is little, and expose to the sun oxidation ditch and settling tank, sludge reflux pump station constitutes pair of lamina wall tubular pond body, described A/A/O is little to expose to the sun in the annular pool that oxidation ditch and sludge reflux pump erect-position constitute between the tube end of double wall tubular pond body and double wall, and described settling tank be the circular pond of the tube end and inner side-wall formation.
2. the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of employing A/A/O according to claim 1 is characterized in that: described sludge reflux pump station, anaerobic pond, anoxic pond and Aerobic Pond join by circulation before and after counterclockwise order is in annular pool successively.
3. the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of employing A/A/O according to claim 1, it is characterized in that: described anaerobic pond, anoxic pond, Aerobic Pond are ring-type baffling pool type, are provided with training wall in the pond of this ring-type baffling pool type.
4. the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of employing A/A/O according to claim 1, it is characterized in that: be provided with backflow channel between described Aerobic Pond and the anoxic pond, water channel is provided with the swirling recirculation flow door.
5. the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of employing A/A/O according to claim 1, it is characterized in that: the circumferential end wall at described sludge reflux pump station is the linear pattern pool wall, this sludge reflux pump station is nearly orthogonal pond body.
6. the integrated sewage treating apparatus of the little oxidation ditch process that exposes to the sun of employing A/A/O according to claim 1, it is characterized in that: be provided with mud return line in the described settling tank, described sludge reflux pump station is communicated with settling tank by mud return line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120057365XU CN201942599U (en) | 2011-03-07 | 2011-03-07 | Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120057365XU CN201942599U (en) | 2011-03-07 | 2011-03-07 | Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process |
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|---|---|
| CN201942599U true CN201942599U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120057365XU Expired - Lifetime CN201942599U (en) | 2011-03-07 | 2011-03-07 | Integrated sewage treatment device adopting A/A/O micro-aerating oxidation ditch process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254008A (en) * | 2015-10-22 | 2016-01-20 | 上海中信水务产业有限公司 | Circulation flow ring-shaped multi-section soil film symbiotic combined type bio-reactor and sewage treatment process thereof |
| CN107746108A (en) * | 2017-11-23 | 2018-03-02 | 天津市华博水务有限公司 | A kind of oxidation ditch biological treatment system and method |
| CN114890539A (en) * | 2022-06-16 | 2022-08-12 | 上海市政工程设计研究总院（集团）有限公司 | Sewage biological treatment pool |
| WO2022267082A1 (en) * | 2021-06-24 | 2022-12-29 | 贵州大学 | Integrated double-cycle oxidation ditch apparatus and treatment method for municipal sewage |
-
2011
- 2011-03-07 CN CN201120057365XU patent/CN201942599U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254008A (en) * | 2015-10-22 | 2016-01-20 | 上海中信水务产业有限公司 | Circulation flow ring-shaped multi-section soil film symbiotic combined type bio-reactor and sewage treatment process thereof |
| CN107746108A (en) * | 2017-11-23 | 2018-03-02 | 天津市华博水务有限公司 | A kind of oxidation ditch biological treatment system and method |
| WO2022267082A1 (en) * | 2021-06-24 | 2022-12-29 | 贵州大学 | Integrated double-cycle oxidation ditch apparatus and treatment method for municipal sewage |
| CN114890539A (en) * | 2022-06-16 | 2022-08-12 | 上海市政工程设计研究总院（集团）有限公司 | Sewage biological treatment pool |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
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| CX01 | Expiry of patent term |