CN201325907Y - Sewage treatment system for oxidation ditch - Google Patents
Sewage treatment system for oxidation ditch Download PDFInfo
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- CN201325907Y CN201325907Y CNU2008201246742U CN200820124674U CN201325907Y CN 201325907 Y CN201325907 Y CN 201325907Y CN U2008201246742 U CNU2008201246742 U CN U2008201246742U CN 200820124674 U CN200820124674 U CN 200820124674U CN 201325907 Y CN201325907 Y CN 201325907Y
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- aerator
- oxidation ditch
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Abstract
The utility model discloses a sewage treatment system for an oxidation ditch, which belongs to the field of sewage treatment equipment. The system comprises an anaerobic pool, an oxygen-deficient pool, an aerobic pool, a submersible stirrer, an aeration machine and a submersible current impeller, wherein, annular current passages are arranged in the anaerobic pool, the oxygen-deficient pool and the aerobic pool; a water inlet is formed on the anaerobic pool; the annular current passage in the anaerobic pool is communicated with the annular current passages in the oxygen-deficient pool and the aerobic pool to form the annular oxidation ditch; the submersible stirrer is arranged in the oxygen-deficient pool; the aeration machine and the submersible current impeller are arranged in the aerobic pool; and a water outlet is formed on the aerobic pool. Because the submersible current impeller is arranged in the aerobic pool of the sewage treatment system for an oxidation ditch, the auxiliary current impelling function can be performed, the depth of the oxidation ditch can be increased, and wastewater treated in the oxidation ditch cannot accumulate. Therefore, the occupation area of the oxidation ditch is saved, the flexibility of the adjustment of operating conditions is improved, and energy consumption is reduced.
Description
Technical field
The present invention relates to sewage treatment area, relate in particular to a kind of oxidation channel wastewater treatment system that is used in the sewage disposal.
Background technology
At present, oxidation channel wastewater treatment system has been widely used in the processing of trade effluents such as municipal effluent and oil, chemical industry, the oxidation ditch process sewage disposal technology is a kind of remodeling of traditional activated sludge process, be with aeration tank irrigation canals and ditches shape in the form of a ring, the mixed solution of sewage and active sludge circulates in ring-type irrigation canals and ditches shape aeration tank continuously, its fluidised form possesses pulling flow type and complete hybrid-type dual characteristics, thereby the anti impulsion load ability is strong.In certain scale scope, oxidation ditch system has competitive power economically.
The Sewage treatment systems of more typical oxidation ditch structural form has Carrousel oxidation channel wastewater treatment system and Orbal oxidation channel wastewater treatment system.
Wherein, using is the Carrousel oxidation channel wastewater treatment system more widely, and it has adopted vertical surface aerating machine, and the ditch depth of oxidation ditch is increased to more than the 4.5m by 1.5m, the Carrousel oxidation ditch has increased new design on the basis of ditch type in one's early years, realized new function.These new variations make the Carrousel oxidation ditch become effective treatment craft at aspects such as improving processing efficiency, reduction operation energy consumption, improvement active sludge performance and biological carbon and phosphorous removal.Existing a kind of Carrousel AAC oxidation ditch biological denitrification dephosphorization Sewage treatment systems is to have increased preposition anaerobic zone and oxygen-starved area on the basis of Carrousel oxidation channel wastewater treatment system, to reach the purpose of biological phosphate-eliminating and enhanced biological denitrogenation.The primary structure of Carrousel AAC oxidation ditch biological denitrification dephosphorization Sewage treatment systems mainly connects and composes annular oxidation ditch by anaerobic pond 1, anoxic pond 2 and Aerobic Pond 3 as shown in Figure 1, in anaerobic pond 1, anoxic pond 2 diving mixer 4,5 is set all; The surface aeration machine of falling the umbrella is set in Aerobic Pond 6, this oxidation channel wastewater treatment system is owing to only be provided with aerator in the Aerobic Pond of oxidation ditch ditch body, plug-flow to processing waste water is limited in one's ability, can only adopt the more shallow depth of water, cause oxidation ditch ditch body floor space big, but do not utilize its corresponding processing power, and cause the inner alluvial of oxidation ditch easily, also be unfavorable at influent quality situation flexible operational mode, when entering organic matter of water concentration was low, existence can't realize energy-conservation shortcoming.
Summary of the invention
Based on above-mentioned existing in prior technology problem, the purpose of the utility model embodiment provides a kind of oxidation channel wastewater treatment system, it is big to solve existing oxidation channel wastewater treatment system floor space, easily deposit, can't adjust operational mode flexibly at influent quality, when entering organic matter of water concentration is low, can't realize problem of energy saving.
The objective of the invention is to be achieved through the following technical solutions:
The utility model embodiment provides a kind of oxidation channel wastewater treatment system, and this system comprises:
Anaerobic pond, anoxic pond, Aerobic Pond, diving mixer, aerator and diving impeller;
Described anaerobic pond, anoxic pond and Aerobic Pond inside are annular flow channel, described anaerobic pond is provided with water-in, annular flow channel in the anaerobic pond is communicated with formation annular oxidation ditch with annular flow channel in anoxic pond, the Aerobic Pond successively, wherein, be equipped with diving mixer in described anaerobic pond, the anoxic pond, aerator and diving impeller are set in the described Aerobic Pond, and Aerobic Pond is provided with water outlet.
Described aerator is many, is uniformly set in the annular flow channel in the described Aerobic Pond.
Described aerator is the horizontal plate-spinning aerator of transverse axis.
Described diving impeller is many, and is corresponding with aerator in the described Aerobic Pond, in the annular flow channel in the Aerobic Pond that is arranged on described each aerator back that distributes.
Described diving mixer is many, distributes to be arranged in the interior annular flow channel of described anoxic pond.
The technical scheme that is provided by the invention described above embodiment as can be seen, embodiment of the present invention is by being provided with the diving impeller in the Aerobic Pond of oxidation channel wastewater treatment system, can play the effect of auxiliary plug-flow, and then can increase the ditch depth of oxidation ditch, and can not depositing, thereby the floor space of saving oxidation ditch; In actual motion, diving impeller in the oxidation ditch can cooperate with aerator, according to influent quality situation flexible operation condition, thereby regulate the hydraulic detention time of aerobic section and anoxic section, satisfy denitrogenation or remove organic different needs, and when entering organic matter of water concentration is low, can reduce the operation platform number of aerator, replace aerator with the diving impeller, thus effective energy efficient.This system architecture is simple, it is shallow to solve in the existing oxidation ditch depth of water well, floor space is big, the problem of easy alluvial, the aerobic zone regulating power that can solve oxidation ditch simultaneously is relatively poor, can when the actual entering organic matter of water concentration of system be low, regulate unlatching diving plug-flow machine and replace the aerator operation, effectively reduce operation energy consumption.
Description of drawings
The structural representation of the oxidation channel wastewater treatment system that Fig. 1 provides for prior art;
Fig. 2 is the structural representation of the oxidation channel wastewater treatment system of the embodiment of the invention;
Among Fig. 1: 1, anaerobic pond; 2, anoxic pond; 3, Aerobic Pond; 4,5-diving mixer; 6, the surface aeration machine of falling the umbrella; A, water inlet pipe; B, reflux sludge tube; C, rising pipe;
Among Fig. 2: 11, anaerobic pond; 21, anoxic pond; 31, Aerobic Pond; 111,211-diving mixer; 311, aerator; 312, diving impeller; A1, water inlet pipe; B1, reflux sludge tube; C1, rising pipe.
Embodiment
Embodiment of the present invention provides a kind of oxidation channel wastewater treatment system, this system can be used in the processing to trade effluents such as municipal effluent and oil, chemical industry, specifically comprises: anaerobic pond, anoxic pond, Aerobic Pond, diving mixer, aerator and diving impeller; Wherein, anaerobic pond, anoxic pond and Aerobic Pond inside are annular flow channel, described anaerobic pond is provided with water-in, annular flow channel in the anaerobic pond is communicated with formation annular oxidation ditch with annular flow channel in anoxic pond, the Aerobic Pond, wherein, be equipped with diving mixer in described anaerobic pond, the anoxic pond, aerator and diving impeller are set in the described Aerobic Pond, Aerobic Pond is provided with water outlet.
By the diving impeller that in Aerobic Pond, is provided with, strengthened handling the plug-flow ability of waste water in the Aerobic Pond, the degree of depth that can deepen Aerobic Pond increasing handle waste water advanced, and has been guaranteed can not cause alluvial, and then, reduce its floor space.And the diving impeller in the annular oxidation ditch can cooperate with aerator, according to influent quality situation flexible operation condition, thereby regulate the hydraulic detention time of aerobic section and anoxic section, satisfy denitrogenation or remove organic different needs, and when entering organic matter of water concentration is low, can reduce the operation platform number of aerator, replace aerator with the diving impeller, thus effective energy efficient.
For ease of understanding, by specific embodiment embodiment of the present utility model is described further below in conjunction with accompanying drawing.
Embodiment one
Present embodiment provides a kind of oxidation channel wastewater treatment system, can be used for waste water is handled, and as shown in Figure 2, this system specifically comprises:
Wherein, the water stream channel of anaerobic pond 11, anoxic pond 21 and Aerobic Pond 31 inside is annular, annular flow channel in the anaerobic pond is communicated with formation annular oxidation ditch afterwards with annular flow channel in anoxic pond and the Aerobic Pond, can carry out anaerobism, anoxic and aerobic syllogic to the waste water that water inlet pipe A1 enters by this oxidation ditch and handle, the waste water after the processing flows out this oxidation channel wastewater treatment system through water outlet C1;
In described anaerobic pond 11, anoxic pond 21, be equipped with diving mixer 111,211, be used for the muddy water mixing stirring in anaerobic pond 11, the anoxic pond 21 is mixed to guarantee muddy water; In the reality, diving mixer in anaerobic pond 11, anoxic pond 21 all can be provided with many, uniform distribution is provided with two diving mixers in the annular flow channel among the embodiment in anaerobic pond 11, and two diving mixers also are set in anoxic pond 21, and is similar in set-up mode and the anaerobic pond;
Above-mentioned oxidation channel wastewater treatment system is by being provided with the diving impeller in the annular flow channel in the oxidation ditch Aerobic Pond, thereby make oxidation ditch when increasing the depth of water, guarantee the flow velocity of mixed solution in the pond, the situation of avoiding depositing occurs, it is shallow to have overcome existing oxidation ditch-water on the one hand, the shortcoming that floor space is big, improved the flexible ability of system on the other hand, can regulate the unlatching platform number of aerator and diving impeller according to the influent quality situation, satisfy denitrogenation or remove organic different needs, when entering organic matter of water concentration is low, can reduce the unlatching platform number of aerator, open corresponding diving impeller and guarantee plug-flow, thus effective energy efficient.
During actual the use, above-mentioned improved oxidation ditch Sewage treatment systems as shown in Figure 2, mainly is the release of carrying out phosphorus at first section anaerobic zone that is made of anaerobic pond 11 when waste water is handled, under anaerobic environment, the ATP of polyP bacteria is hydrolyzed, and discharges phosphorus and energy, and the concentration of this processing section phosphor in sewage is higher, be generally 1-2h for this section of municipal wastewater residence time, sludge concentration 3-4g/l mixes for guaranteeing muddy water, adopts diving mixer 111 to mix stirring;
Mainly carry out anti-nitration reaction in the oxygen-starved area that is made of anoxic pond 21, denitrifying bacteria utilizes the organism in the sewage to make carbon source, and a large amount of nitrate or the nitrite of bringing in the backflow mixed liquor is reduced to N
2, being released into air, the residence time of municipal wastewater oxygen-starved area is generally 1-3h, and sludge concentration 3-4g/l mixes for guaranteeing muddy water, adopts diving mixer 211 to mix stirring;
Mainly be degradation of organic substances at the aerobic zone that constitutes by Aerobic Pond 31, carry out nitration reaction and the aerobic phosphorus of releasing.Under the effect of aerobic microbiological, organism is by biochemical degradation; Under the effect of nitrifier, ammonia nitrogen is by nitrated, NH
3-N concentration significantly descends; Phosphorus is along with the excess ingestion of polyP bacteria, also with speed decline faster; The aerobic zone oxygen supply adopts the horizontal plate-spinning aerator 311 of transverse axis to carry out aeration, and diving impeller 312 is set, and is mainly used in auxiliary plug-flow, improves the flexible ability of system simultaneously.Actual when municipal wastewater is handled, be generally 7-12h in the residence time of aerobic zone, both can reach processing after, sludge concentration is 3-4g/l, sludge loading is 0.05-0.1kgB0D
5/ (kgMLSS.d).
In sum, in the embodiment of the invention by the diving impeller is set in the Aerobic Pond of oxidation ditch, thereby make the flow velocity that when increasing the depth of water, guarantees mixed solution in the pond, avoided alluvial; It is shallow also to have overcome existing oxidation ditch-water, the shortcoming that floor space is big; Improved the flexible ability of system simultaneously, can regulate the unlatching platform number of aerator and diving impeller according to the influent quality situation, satisfy denitrogenation or remove organic different needs, when entering organic matter of water concentration is low, can reduce the unlatching platform number of aerator, open corresponding diving impeller and guarantee plug-flow, thus effective energy efficient.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1, a kind of oxidation channel wastewater treatment system is characterized in that, this system comprises:
Anaerobic pond, anoxic pond, Aerobic Pond, diving mixer, aerator and diving impeller;
Described anaerobic pond, anoxic pond and Aerobic Pond inside are annular flow channel, described anaerobic pond is provided with water-in, annular flow channel in the anaerobic pond is communicated with formation annular oxidation ditch with annular flow channel in anoxic pond, the Aerobic Pond, wherein, be equipped with diving mixer in described anaerobic pond, the anoxic pond, aerator and diving impeller are set in the described Aerobic Pond, and Aerobic Pond is provided with water outlet.
2, oxidation channel wastewater treatment system according to claim 1 is characterized in that, described aerator is many, is uniformly set in the annular flow channel in the described Aerobic Pond.
3, oxidation channel wastewater treatment system according to claim 1 is characterized in that, described aerator is the horizontal plate-spinning aerator of transverse axis.
4, according to claim 1,2 or 3 described oxidation channel wastewater treatment systems, it is characterized in that, described diving impeller is many, and is corresponding with aerator in the described Aerobic Pond, in the annular flow channel in the Aerobic Pond that is arranged on described each aerator back that distributes.
5, oxidation channel wastewater treatment system according to claim 1 is characterized in that, described diving mixer is many, distributes to be arranged in the interior annular flow channel of described anoxic pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201246742U CN201325907Y (en) | 2008-12-17 | 2008-12-17 | Sewage treatment system for oxidation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201246742U CN201325907Y (en) | 2008-12-17 | 2008-12-17 | Sewage treatment system for oxidation ditch |
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| Publication Number | Publication Date |
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| CN201325907Y true CN201325907Y (en) | 2009-10-14 |
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| CNU2008201246742U Expired - Fee Related CN201325907Y (en) | 2008-12-17 | 2008-12-17 | Sewage treatment system for oxidation ditch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973626A (en) * | 2010-10-27 | 2011-02-16 | 西安建筑科技大学 | Microporous aerating variable-speed oxidation ditch |
| CN105347488A (en) * | 2015-11-30 | 2016-02-24 | 华南理工大学 | Device and method for deep aeration in integrated oxidation ditch |
| CN107445295A (en) * | 2017-08-08 | 2017-12-08 | 凌志环保股份有限公司 | Improve oxidation ditch circulation dynode system |
| 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 |
| CN110171913A (en) * | 2019-07-05 | 2019-08-27 | 无锡市政设计研究院有限公司 | Combination membrane biological reaction pool sewage disposal system and method |
-
2008
- 2008-12-17 CN CNU2008201246742U patent/CN201325907Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973626A (en) * | 2010-10-27 | 2011-02-16 | 西安建筑科技大学 | Microporous aerating variable-speed oxidation ditch |
| CN105347488A (en) * | 2015-11-30 | 2016-02-24 | 华南理工大学 | Device and method for deep aeration in integrated oxidation ditch |
| CN107445295A (en) * | 2017-08-08 | 2017-12-08 | 凌志环保股份有限公司 | Improve oxidation ditch circulation dynode system |
| 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 |
| CN110171913A (en) * | 2019-07-05 | 2019-08-27 | 无锡市政设计研究院有限公司 | Combination membrane biological reaction pool sewage disposal system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20151217 |
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| EXPY | Termination of patent right or utility model |