CN2776968Y - Reflux biological phosphorus removing device of sludge - Google Patents
Reflux biological phosphorus removing device of sludge Download PDFInfo
- Publication number
- CN2776968Y CN2776968Y CNU2005200405042U CN200520040504U CN2776968Y CN 2776968 Y CN2776968 Y CN 2776968Y CN U2005200405042 U CNU2005200405042 U CN U2005200405042U CN 200520040504 U CN200520040504 U CN 200520040504U CN 2776968 Y CN2776968 Y CN 2776968Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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Abstract
The utility model relates to a double-sludge reflux biological phosphorus removing device which comprises a biochemical tank, a double-sinking tank, and a concentration tank, wherein the biochemical tank comprises an anaerobic tank, an anoxic tank, and an aerobic tank; the double-sinking tank is respectively communicated with the anaerobic tank and the aerobic tank by pipelines; the concentration tank is communicated with the double-sinking tank by the pipeline, and is communicated with the anaerobic tank of the biochemical tank by the pipeline. The utility model has the core that on the basis of the double-sinking tank sludge reflux with the traditional anaerobic/anoxic/aerobic technology, the water inlet point position introduces concentrated sludge to inversely flow, so that phosphorus-accumulating bacteria is better inoculated in the anaerobic/the anoxic/the aerobic tanks, and the proportion of the phosphorus-accumulating bacteria in a main body of the biochemical tank is improved. The utility model relieves the proportion contradiction of bacteria flora between nitrogen extraction and phosphorus remove of biology in an extended aeration long sludge age technology, and simultaneously, improves the phosphorus removing efficiency of the biology.
Description
Technical field
The utility model belongs to activated sludge process municipal effluent biological carbon and phosphorous removal process field, is a kind of enhancing biological phosphate-eliminating ability, can realize the treatment technology of good biological denitrogenation dephosphorizing effect in long mud extended aeration in age technology simultaneously.
Background technology
Tradition anaerobic/anoxic/aerobic process is for realizing enough nitrification and denitrification effects, the general mode that adopts long mud extended aeration in age.Nitrifier is the low autotrophic bacteria of a kind of rate of rise, and epoch breeding required time is longer, and traditional anaerobic/anoxic/aerobic process is a kind of mixed phase active sludge treatment process, and various autotrophic bacterias, heterotrophic bacterium all have certain proportion in the active sludge.The operation in age of long mud is main cultivates long nitrifier of a certain proportion of time in epoch, realizes effectively nitrated and is denitrification creation matrix condition.And polyP bacteria (PAO) is short heterotrophic bacterium of breeding time in epoch, polyP bacteria in short mud system in age anaerobic pond and Aerobic Pond in alternately be in the anaerobic state oxygen condition of becoming reconciled, consume adenosine triphosphate in the microbe during anaerobism, directly produce and keep the required energy of polyP bacteria growth metabolism, a large amount of quick degraded BOD that absorb in water inlet when discharging phosphorus form Babes-Ernst bodies such as poly-β hydroxybutyric acid in vivo; Opposite when aerobic with anaerobic process, the Babes-Ernst bodies such as poly-β hydroxybutyric acid that anaerobic state forms in the oxidizing microorganisms body, phosphoric acid salt in the time of production capacity in the excessive absorption mixed solution, phosphorus content is higher in the body of polyP bacteria (PAO), put in the short mud system in age of phosphorus this alternately the suction, in time get rid of the purpose that excess sludge can reach biological phosphate-eliminating.So the required growth conditions of nitrifier and polyP bacteria (PAO) is a pair of contradiction, the former need be long mud system in age, the latter need lack mud system in age.Tradition anaerobic/anoxic/aerobic process often adopts long mud extended aeration in age operation scheme, mud is that mixed phase refluxes, so nitrifier in the returned sluge, denitrifying bacteria ratio height and the dephosphorization bacterial ratio is lower are denitrification effect excellence and phosphor-removing effect has shortcoming to a certain extent.
The utility model content
The purpose of this utility model is to provide a kind of pair of mud backflow biological phosphate-eliminating device, and technical process is simple, a less investment, and can realize good biological carbon and phosphorous removal with extremely low power charge.When old sewage work carried out the biological denitrification phosphorous removal technique transformation, improvement cost was low.
For achieving the above object, technical solution of the present utility model is, two mud backflow biological phosphate-eliminating devices comprise biochemistry pool, and it comprises anaerobic pond, anoxic pond, Aerobic Pond; Second pond is connected with described anaerobic pond, Aerobic Pond respectively by pipeline; Concentration basin is connected with described second pond by pipeline; It is characterized in that this concentration basin is connected with the anaerobic pond of described biochemistry pool by pipeline.
Further, anoxic pond, Aerobic Pond are connected by pipeline and recycle pump in the described biochemistry pool.
Described concentration basin is connected with described biochemistry pool anaerobic pond and is provided with recycle pump in the pipeline.
Be provided with agitator in the anaerobic pond of described biochemistry pool, the anoxic pond.
Be provided with aerating apparatus in the Aerobic Pond of described biochemistry pool.
Described aerating apparatus is a micro-hole aerator; Aeration adopts the blast aeration mode, the utility model is selected micro-hole aerator for use, adopts the rubber membrane type aerator, and it gets intensive micropore with machinery or laser on rubber diaphragm, when aerator internal pressure during greater than external pressure, micropore opens the microbubble that discharges 2mm; When gas blower quits work, the aerator internal pressure is during less than external pressure, micropore on the aerator is closed immediately, prevent that sewage from blowing back into the aerated conduit system, it is by disc type, tubular type and board-like three kinds, the utility model preferably adopts the rubber diaphragm plate-type aerator, and rubber diaphragm adopts ternary Isopropylamine rubber diaphragm.
Further, anoxic pond, Aerobic Pond are connected by pipeline and recycle pump in the described biochemistry pool of the present utility model.
Described biochemistry pool is connected and is provided with recycle pump in the pipeline.
The first step mud of two mud backflow biological phosphate-eliminating devices refluxes and refluxes from the mud with second pond, and this is a main source of keeping biochemistry pool microorganism total amount, is traditional mud reflux type; Second stage mud reflux from sludge thickener, the excess sludge that is discharged to concentration basin from second pond is (anaerobic state mud concentration process for a long time, concentration time is often more than 3.0hr), discharge phosphorus and utilize the endogenous carbon of microorganism to form the intravital Babes-Ernst bodies of polyP bacteria, special living environment makes the contained polyP bacteria ratio of concentration basin mud far above anaerobic/anoxic/aerobic biochemical pond, two mud backflow Biological Phosphorus Removal System are utilized the characteristics of thickened sludge, to concentrate back excess sludge part secondary back to leading portion anaerobic/anoxic/aerobic biochemical pond, in biochemistry pool, to inoculate polyP bacteria better, improve the polyP bacteria ratio in the reaction tank main body, improve biological phosphate-eliminating efficient.
Advantage of the present utility model is,
1. strengthen traditional anaerobic/anoxic/aerobic process biochemistry pool dephosphorization ability
By above pair of mud return-flow system, the dephosphorization ability of anaerobic/anoxic/aerobic process biochemistry pool can improve 10～20%, can obtain higher phosphor-removing effect with minimum cost.
2. reduced investment, working cost are low
Sludge thickener returned sluge concentration is about between 25g/l～30g/l, and the concentrating return-flow ratio is 1～2% of flooding velocity, the reflux pump reduced investment, and the mud that is increased backflow operation power consumption only accounts for full factory below 1% of power consumption of operation.
3. convenient old factory carries out the biological phosphate-eliminating transformation
Carry out the biological phosphate-eliminating transformation, when improving former dephosphorization ability, only need increase the concentration basin sludge reflux pump and the relation of refluxing can improve former biochemistry pool dephosphorization efficiency by using building Sewage Plant.
Description of drawings
Fig. 1 is the structural representation of the two mud backflow biological phosphate-eliminating devices of the utility model.
Embodiment
Referring to Fig. 1, of the present utility model pair of mud backflow biological phosphate-eliminating device comprises biochemistry pool 1, second pond 2, concentration basin 3; Wherein, biochemistry pool 1 comprises anaerobic pond 101, anoxic pond 102, Aerobic Pond 103; Anoxic pond 102, Aerobic Pond 103 are connected by pipeline 10; Be provided with agitator 4 in the anaerobic pond 101 of described biochemistry pool 1, the anoxic pond 102, be provided with aerating apparatus 5 in the Aerobic Pond 103, this aerating apparatus 5 is a micro-hole aerator; Second pond 2 is connected with described anaerobic pond 101, Aerobic Pond 103 respectively by pipeline 6,7; Concentration basin 3 is connected with described second pond 2 by pipeline 8; This concentration basin 6 also is connected with the anaerobic pond 101 of described biochemistry pool 1 by pipeline 9, is provided with recycle pump 11 in the pipeline 6～10.
The first step mud of two mud backflow biological phosphate-eliminating devices refluxes and refluxes from the mud with second pond 2, and this is a main source of keeping biochemistry pool microorganism total amount, is traditional mud reflux type; Second stage mud reflux from sludge thickener 3, the excess sludge that is discharged to concentration basin 3 from second pond 2 is (anaerobic state mud concentration process for a long time, concentration time is often more than 3.0hr), discharge phosphorus and utilize the endogenous carbon of microorganism to form the intravital Babes-Ernst bodies of polyP bacteria, special living environment makes the contained polyP bacteria ratio of concentration basin 3 mud far above anaerobic/anoxic/aerobic biochemical pond 1, the utility model utilizes the characteristics of thickened sludge, to concentrate back excess sludge part secondary back to leading portion anaerobic/anoxic/aerobic biochemical pond 1, in biochemistry pool 1, to inoculate polyP bacteria better, improve the polyP bacteria ratio in the reaction tank main body, improve biological phosphate-eliminating efficient.
Core of the present utility model is on traditional anaerobic/anoxic/aerobic process second pond mud backflow basis, the water entry place introduces thickened sludge and refluxes, to inoculate polyP bacteria at anaerobic/anoxic/aerobic reaction in the pond better, improve the polyP bacteria ratio in the reaction tank main body, alleviate in the long mud of the extended aeration technology in age the ratio contradiction mutually of the bacterium between the biological denitrificaion and dephosphorization, improved biological phosphate-eliminating efficient simultaneously.
Claims (8)
1. two mud backflow biological phosphate-eliminating devices comprise,
Biochemistry pool, it comprises anaerobic pond, anoxic pond, Aerobic Pond;
Second pond is connected with described anaerobic pond, Aerobic Pond respectively by pipeline;
Concentration basin is connected with described second pond by pipeline; It is characterized in that this concentration basin is connected with the anaerobic pond of described biochemistry pool by pipeline.
2. as claimed in claim 1 pair of mud backflow biological phosphate-eliminating device is characterized in that anoxic pond, Aerobic Pond are connected by pipeline and recycle pump in the described biochemistry pool.
3. as claimed in claim 1 pair of mud backflow biological phosphate-eliminating device is characterized in that, described concentration basin is connected with described biochemistry pool anaerobic pond and is provided with recycle pump in the pipeline.
4. as claimed in claim 1 pair of mud backflow biological phosphate-eliminating device is characterized in that, is provided with agitator in the anaerobic pond of described biochemistry pool, the anoxic pond.
5. as claimed in claim 1 pair of mud backflow biological phosphate-eliminating device is characterized in that, is provided with aerating apparatus in the Aerobic Pond of described biochemistry pool.
6. as claimed in claim 5 pair of mud backflow biological phosphate-eliminating device is characterized in that described aerating apparatus is a micro-hole aerator.
7. interactive internal recycle reaction tank as claimed in claim 6 is characterized in that described micro-hole aerator preferably adopts the rubber diaphragm plate-type aerator.
8. interactive internal recycle reaction tank as claimed in claim 7 is characterized in that, the rubber diaphragm of described rubber diaphragm plate-type aerator adopts ternary Isopropylamine rubber diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200405042U CN2776968Y (en) | 2005-03-29 | 2005-03-29 | Reflux biological phosphorus removing device of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200405042U CN2776968Y (en) | 2005-03-29 | 2005-03-29 | Reflux biological phosphorus removing device of sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2776968Y true CN2776968Y (en) | 2006-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2005200405042U Expired - Fee Related CN2776968Y (en) | 2005-03-29 | 2005-03-29 | Reflux biological phosphorus removing device of sludge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701451A (en) * | 2012-05-29 | 2012-10-03 | 东南大学 | PTA (purified terephthalic acid) sludge reducing method |
| CN104591489A (en) * | 2015-01-07 | 2015-05-06 | 光大水务(济南)有限公司 | Sewage treatment system and sewage treatment method |
| CN106348448A (en) * | 2016-12-06 | 2017-01-25 | 上海溪昌环境工程有限公司 | Wastewater treatment process for advanced bio-denitrification |
| CN106630144A (en) * | 2016-11-22 | 2017-05-10 | 河北工程大学 | Multipoint water-in sludge in-situ reduction synchronous coupling nitrogen and phosphorus removal method |
| CN108424197A (en) * | 2018-06-28 | 2018-08-21 | 青岛大学 | A kind of organic solid waste composting device |
| CN113480096A (en) * | 2021-07-13 | 2021-10-08 | 西安建筑科技大学 | Sewage treatment system and process for step-by-step backflow and double circulation of biological activated sludge |
| CN114262057A (en) * | 2022-02-13 | 2022-04-01 | 长春工程学院 | Method and device for regulating sludge load to respond to instantaneous organic matter impact and application |
-
2005
- 2005-03-29 CN CNU2005200405042U patent/CN2776968Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701451A (en) * | 2012-05-29 | 2012-10-03 | 东南大学 | PTA (purified terephthalic acid) sludge reducing method |
| CN102701451B (en) * | 2012-05-29 | 2014-05-07 | 东南大学 | PTA (purified terephthalic acid) sludge reducing method |
| CN104591489A (en) * | 2015-01-07 | 2015-05-06 | 光大水务(济南)有限公司 | Sewage treatment system and sewage treatment method |
| CN106630144A (en) * | 2016-11-22 | 2017-05-10 | 河北工程大学 | Multipoint water-in sludge in-situ reduction synchronous coupling nitrogen and phosphorus removal method |
| CN106348448A (en) * | 2016-12-06 | 2017-01-25 | 上海溪昌环境工程有限公司 | Wastewater treatment process for advanced bio-denitrification |
| CN108424197A (en) * | 2018-06-28 | 2018-08-21 | 青岛大学 | A kind of organic solid waste composting device |
| CN108424197B (en) * | 2018-06-28 | 2019-03-19 | 青岛大学 | A kind of organic solid waste composting device |
| CN113480096A (en) * | 2021-07-13 | 2021-10-08 | 西安建筑科技大学 | Sewage treatment system and process for step-by-step backflow and double circulation of biological activated sludge |
| CN114262057A (en) * | 2022-02-13 | 2022-04-01 | 长春工程学院 | Method and device for regulating sludge load to respond to instantaneous organic matter impact and application |
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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: 20060503 Termination date: 20130329 |