CN2723437Y - High efficiency nitration reactor - Google Patents
High efficiency nitration reactor Download PDFInfo
- Publication number
- CN2723437Y CN2723437Y CN2004200222615U CN200420022261U CN2723437Y CN 2723437 Y CN2723437 Y CN 2723437Y CN 2004200222615 U CN2004200222615 U CN 2004200222615U CN 200420022261 U CN200420022261 U CN 200420022261U CN 2723437 Y CN2723437 Y CN 2723437Y
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- Prior art keywords
- reactor
- sludge
- reaction chamber
- reactor body
- section reaction
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- 238000006396 nitration reaction Methods 0.000 title abstract description 10
- 239000010802 sludge Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005273 aeration Methods 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000005243 fluidization Methods 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 239000011259 mixed solution Substances 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 239000008187 granular material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical class ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a high efficiency nitration reactor, comprising a reactor body. The lower end of the reactor body is provided with an air inlet pipe and a water inlet pipe; the upper end of the reactor body is provided with a sludge settling area and an overflow dam. The lower end of the sludge settling area is provided with a sludge return flow slot for the settling area. The inside of the reactor body is divided into an upward flow section reaction chamber and a downward flow section reaction chamber by a dividing sleeve barrel; the lower part of the dividing sleeve barrel is provided with a return flow slot. The utility model has the advantages that: 1) the microorganism for carrying out the nitration reaction is existed in the form of the granular sludge with large nitration reaction potential and good earth water isolation effect; 2) the settling chamber is constructed on the outer ring on the upper part of the downward flow section reaction chamber with compact structure, omitting the secondary settling tank and the sludge return flow facility, and avoiding the damage to the granular sludge by the return flow pump; 3) the mixed liquid continuously circulates in the device at a certain speed; the sewage is fully contacted with the granular sludge in the circulation process; the dissolved oxygen driving force of the downward flow section reaction chamber is raised by making use of the hydrostatic pressure, strengthening the mass transfer process; 4) the reactor has no dead area; the sludge has good fluidization performance and stable operation performance.
Description
Technical field
The utility model relates to a kind of high efficiency nitrification reactor.
Background technology
Along with the development of industrial and agricultural production and the raising of living standards of the people, the quantity discharged of itrogenous organic substance sharply increases.What two stage biological was handled starts successively, though Organic pollutants have been played good containment effect, the nitrogen content of water outlet is higher, still is serious environmental source of pollution.Nitrate pollution very harmful, ammonia enters water body, not only can bring out " eutrophication ", causes the disorder of aquatic ecosystem, and can also consume dissolved oxygen, causes water hypoxia, influences the oxygen transmission of fish strontium, and fish are caused death; Generate chloramines with the chlorine effect, influence cholorination and handle.Therefore it is imperative to control nitrate pollution cost-effectively.
The method of denitrogenation of waste water is more, and physics method, chemical method and biological process etc. are arranged.For various reasons, the application of physics, chemical method is very limited, the main both at home and abroad at present bio-denitrification technology that adopts.The biological nitration reaction can be converted into nitrate with ammonia, eliminates the influence of ammonia to environment.The more important thing is that it can be united with anti-nitration reaction, finally makes ammonia be converted into nitrogen.In biological denitrificaion, the ammonia oxidation normally rate limiting step of whole process gathers.Therefore, research and development high efficiency nitrification reactor has important practical sense.
Existing nitrator is mainly developed by activated sludge tank, and modal is the aeration tank.For the microorganism (active sludge) that some amount is arranged in the assurance device carries out nitrification, generally behind the aeration tank, build secondary sedimentation basins, in order to isolating active mud, satisfy the required active sludge in aeration tank on the one hand, satisfy the effluent quality requirement on the other hand.With second pond isolating active mud, and send the aeration tank back to, not only increase equipment by reflux pump, consumption of power, and can destroy the active sludge structure, be unfavorable for forming good granule sludge of sedimentation function and mud-water separation.In addition, air escapes on the bubble after importing the bottom, aeration tank by aeration head, and the oxygen that the end exhausts is difficult to once more to be caused coefficient of oxygen utilization lower by biological utilisation.
Above-mentioned defective at activated sludge tank; the design attempts to improve activated sludge settling property by granular sludge; reclaim granule sludge, improve sludge concentration by building settling tank jointly, improve the utilization ratio of oxygen by the internal recycle of mixed solution on device top.Evidence, Kai Fa novel nitrator has good biological nitration performance in view of the above.In pH7.5～8.5, under the condition that temperature of reaction is 25～30 ℃, can bear high water inlet ammonia concentration, have high volume transformation efficiency, operating performance is stable.
Summary of the invention
The purpose of this utility model provides a kind of high efficiency nitrification reactor.
It has reactor body, be provided with inlet pipe, water inlet pipe in the reactor body lower end, the reactor body upper end is provided with sludge settling district, overflow weir, be provided with settling region mud backflow seam in lower end, sludge settling district, reactor body is interior to be separated into up-flow section reaction chamber, to fall a stream section reaction chamber by separating sleeve, is provided with mud backflow seam below separating sleeve.
Advantage of the present utility model: 1) microorganism that carries out nitration reaction exists with the form of granule sludge, and the nitration reaction potentiality are big, and mud-water separation is effective; 2) settling chamber builds in the top outer shroud that falls stream section reaction chamber, and compact construction has saved secondary sedimentation basins and mud backflow facility, has reduced the volume of structures, has avoided the destruction of reflux pump to granule sludge; 3) constantly at the device internal recycle, sewage fully contacts with granule sludge mixed solution in working cycle with certain speed, and utilizes hydrostaticpressure to improve the dissolved oxygen impellent of falling stream section reaction chamber, has strengthened mass transfer process; 4) no dead band in the reactor, the fluidizing performance of mud is good, and operating performance is stable; 5) this reactor has good biological nitration performance, can bear high water inlet ammonia concentration, has high volume transformation efficiency.
Description of drawings
Fig. 1 is a high efficiency nitrification structure of reactor front view;
Fig. 2 is a high efficiency nitrification structure of reactor vertical view.
Embodiment
The high efficiency nitrification reacting appliance device body that responds, be provided with inlet pipe 1, water inlet pipe 2 in the reactor body lower end, the reactor body upper end is provided with sludge settling district 6, overflow weir 7, be provided with settling region mud backflow seam 8 in 6 lower ends, sludge settling district, be separated into up-flow section reaction chamber 3, fall stream section reaction chamber 4 by separating sleeve in the reactor body, below separating sleeve, be provided with the seam 5 that refluxes.
Said separation sleeve upper edge is positioned at the following 350～450mm of the water surface, and separating the sleeve lower edge is 450～550mm from reactor bottom.The cross-sectional area S1 of up-flow section reaction chamber is 5～7: 5～3 with the ratio of the cross-sectional area S2 that falls stream section reaction chamber, and the level inclination α that separates the backflow seam lower bevel of sleeve below is 48 °～52 °, and reactor aspect ratio H/D is 1.5～2.5.The height in sludge settling district accounts for 1/5～1/6 of reactor body height, and the volume in sludge settling district accounts for 1/6～1/7 of cumulative volume, and the level inclination β of settling region mud backflow seam lower bevel is 50 °～55 °.The inlet pipe aeration head is embedded in the reactor body bottom, and with reactor body bottom surface level, the water inlet pipe water distributor is arranged at the aeration head top, and water distributor plane and aeration head planar spacing are 150～200mm.
The granular mud bed nitrator of internal recycle is made up by steel or Steel Concrete, up-flow section reaction chamber, falls stream section reaction chamber and the sludge settling chamber is built jointly in same round pond.Seed sludge adds the up-flow section reaction chamber to the middle part.Air and sewage import up-flow section reaction chamber bottom by water distributor and aeration head respectively.Aeration head is located at the water distributor below and helps making air, waste water, mud thorough mixing.Aeration plays dual parts oxygen supply and promotes liquid stream.Up-flow section reaction chamber with fall a stream section reaction chamber and separate by body of wall, after mixed solution rises to napex, enter by the partition wall upper end and to fall a stream section reaction chamber.Falling the power that mixed solution sinks in the stream section reaction chamber mainly flows from the liquid of filling up up-flow section reaction chamber vacancy.Through the seam that refluxes, the mixed solution that falls in the stream section reaction chamber returns up-flow section reaction chamber, promotes mixed solution thus and circulates at inside reactor.Mixed solution in falling stream section reaction chamber sinks down in the process of reactor bottom, and because of the increase gradually of hydrostaticpressure, the dissolved oxygen of bringing into mixed solution is utilized effectively.The sludge settling chamber is around falling stream section reaction chamber.Owing to there is not the interference of gas, the lift velocity of liquid stream is slower in the settling chamber, and the mud that is brought to the settling chamber obtains separating, and relies on the gravity of mud and the pulling force that falls the stream district to return reaction chamber.Water outlet is discharged by the settling region overflow weir.
Claims (5)
1. high efficiency nitrification reactor, it is characterized in that: it has reactor body, be provided with inlet pipe (1), water inlet pipe (2) in the reactor body lower end, the reactor body upper end is provided with sludge settling district (6), overflow weir (7), be provided with settling region mud backflow seam (8) in lower end, sludge settling district (6), be separated into up-flow section reaction chamber (3), fall stream section reaction chamber (4) by separating sleeve in the reactor body, below separating sleeve, be provided with the seam (5) that refluxes.
2. a kind of high efficiency nitrification reactor according to claim 1 is characterized in that: said separation sleeve upper edge is positioned at the following 350～450mm of the water surface, and separating the sleeve lower edge is 450～550mm from reactor bottom.
3. a kind of high efficiency nitrification reactor according to claim 1, it is characterized in that: the cross-sectional area S1 of said up-flow section reaction chamber is 5～7: 5～3 with the ratio of the cross-sectional area S2 that falls stream section reaction chamber, the level inclination α of seam (5) lower bevel that refluxes is 48 °～52 °, and reactor aspect ratio H/D is 1.5～2.5.
4. a kind of high efficiency nitrification reactor according to claim 1, it is characterized in that: the height in said sludge settling district (6) accounts for 1/5～1/6 of reactor body height, the volume in sludge settling district accounts for 1/6～1/7 of cumulative volume, and the base plate and the angle β between the horizontal plane of settling region mud backflow seam (8) are 50 °～55 °.
5. a kind of high efficiency nitrification reactor according to claim 1, it is characterized in that: said inlet pipe (1) aeration head is embedded in the reactor body bottom, with reactor body bottom surface level, water inlet pipe (2) water distributor is arranged at the aeration head top, and water distributor plane and aeration head planar spacing are 150～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004200222615U CN2723437Y (en) | 2004-04-21 | 2004-04-21 | High efficiency nitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004200222615U CN2723437Y (en) | 2004-04-21 | 2004-04-21 | High efficiency nitration reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723437Y true CN2723437Y (en) | 2005-09-07 |
Family
ID=35037067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004200222615U Expired - Fee Related CN2723437Y (en) | 2004-04-21 | 2004-04-21 | High efficiency nitration reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723437Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148304B (en) * | 2007-08-24 | 2010-05-26 | 浙江大学 | Highly effective double-element nitration reactor |
| CN101913704A (en) * | 2010-08-10 | 2010-12-15 | 浙江大学 | Arc reactor |
| CN102897905A (en) * | 2012-09-26 | 2013-01-30 | 冯秀娟 | Activated sludge reactor |
| CN106865761A (en) * | 2017-04-11 | 2017-06-20 | 湖北君集水处理有限公司 | A kind of enhanced biological water process anti-nitration reaction device |
| CN108373201A (en) * | 2018-04-28 | 2018-08-07 | 杭州师范大学 | A kind of processing method and dedicated unit of low ratio of carbon to ammonium ammonia nitrogen waste water |
| CZ307677B6 (en) * | 2014-10-10 | 2019-02-13 | ASIO NEW, spol. s r.o. | Biological wastewater treatment plant |
| CN113562841A (en) * | 2021-06-10 | 2021-10-29 | 科盛环保科技股份有限公司 | Efficient short-cut nitrification urban sewage deep denitrification device and method |
-
2004
- 2004-04-21 CN CN2004200222615U patent/CN2723437Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148304B (en) * | 2007-08-24 | 2010-05-26 | 浙江大学 | Highly effective double-element nitration reactor |
| CN101913704A (en) * | 2010-08-10 | 2010-12-15 | 浙江大学 | Arc reactor |
| CN102897905A (en) * | 2012-09-26 | 2013-01-30 | 冯秀娟 | Activated sludge reactor |
| CZ307677B6 (en) * | 2014-10-10 | 2019-02-13 | ASIO NEW, spol. s r.o. | Biological wastewater treatment plant |
| CN106865761A (en) * | 2017-04-11 | 2017-06-20 | 湖北君集水处理有限公司 | A kind of enhanced biological water process anti-nitration reaction device |
| CN108373201A (en) * | 2018-04-28 | 2018-08-07 | 杭州师范大学 | A kind of processing method and dedicated unit of low ratio of carbon to ammonium ammonia nitrogen waste water |
| CN113562841A (en) * | 2021-06-10 | 2021-10-29 | 科盛环保科技股份有限公司 | Efficient short-cut nitrification urban sewage deep denitrification device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |