CN1295163C - Anaerobic ammonia oxidation reactor - Google Patents
Anaerobic ammonia oxidation reactor Download PDFInfo
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- CN1295163C CN1295163C CNB2005100616940A CN200510061694A CN1295163C CN 1295163 C CN1295163 C CN 1295163C CN B2005100616940 A CNB2005100616940 A CN B2005100616940A CN 200510061694 A CN200510061694 A CN 200510061694A CN 1295163 C CN1295163 C CN 1295163C
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- Prior art keywords
- reactor
- anaerobic ammonia
- ammonia oxidation
- sludge
- reactor body
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 30
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 26
- 230000003647 oxidation Effects 0.000 title claims abstract description 24
- 239000010802 sludge Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 241001453382 Nitrosomonadales Species 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 2
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 abstract description 3
- 238000005243 fluidization Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009466 transformation Effects 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
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 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
- 239000011159 matrix material Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 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
- 239000002351 wastewater Substances 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention discloses an anaerobic ammonia oxidation reactor provided with a reactor body, wherein the lower end of the reactor body is provided with a water inlet pipe, and the upper end of the reactor body is provided with a sealing cover, a sludge settling zone and an overflow weir. The sealing cover is provided with an air outlet, the lower end of the sludge settling zone is provided with a return sludge flow slit of the settling zone, and a stirrer is arranged in the reactor. The anaerobic ammonia oxidation reactor has the advantages that 1, microbes carrying out the anaerobic ammonia oxidation reaction exist in the form of particle sludge, the potentiality of the anaerobic ammonia oxidation reaction is large, and the sludge and water separation effect is good; 2, a settling chamber is arranged on an outer ring at the upper part of the reactor body, and therefore, the structure is compact; 3, the stirrer runs at a certain speed, which makes polluted water in the reactor sufficiently in contact with the particle sludge, and thereby, the mass transfer process is strengthened; 4, no dead zone exists in the reactor, so that the fluidization performance of the sludge is good, and the running performance is stable; 5, the reactor has very good anaerobic ammonia oxidation performance, the reactor can bear high concentration of water inflow ammonia and nitrite, and the reactor has high volume conversion efficiency.
Description
Technical field
The present invention relates to a kind of anaerobic ammonia oxidation 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 Anammox reaction can be converted into nitrogen with ammonia and nitrite, eliminates the influence of ammonia to environment.Therefore, the research and development anaerobic ammonia oxidation reactor has important practical significance.
Existing anaerobic ammonia oxidation reactor is mainly developed by anaerobic pond.For the microorganism (active sludge) that some amount is arranged in the assurance device carries out the Anammox effect, generally behind anaerobic pond, build secondary sedimentation basins, in order to isolating active mud, satisfy the required active sludge of anaerobic pond on the one hand, satisfy the effluent quality requirement on the other hand.With second pond isolating active mud, and send anaerobic pond 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.
Summary of the invention
The purpose of this invention is to provide a kind of anaerobic ammonia oxidation reactor.
Anaerobic ammonia oxidation reactor has the cylindrical reactor body, be provided with water inlet pipe in the reactor body lower end, the reactor body upper end is provided with sludge settling district, overflow weir, sealing cover, be provided with mud backflow seam in lower end, sludge settling district, inside reactor is provided with agitator, be provided with stir shaft sleeve and air outlet on sealing cover, anaerobic ammonia oxidizing bacteria exists with the form of granule sludge in the reactor.
Advantage of the present invention: 1) microorganism that carries out Anammox reaction exists with the form of granule sludge, and Anammox reaction potentiality are big, and mud-water separation is effective; 2) settling chamber is arranged on reactor body top outer shroud, and compact construction has saved secondary sedimentation basins and mud backflow facility, has avoided the destruction of reflux pump to granule sludge; 3) agitator moves with certain speed, makes the interior sewage of reactor fully contact with granule sludge, 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 Anammox performance, can bear high water inlet ammonia concentration, has high volume transformation efficiency.
Description of drawings
Fig. 1 is the anaerobic ammonia oxidation reactor structural representation;
Fig. 2 is an anaerobic ammonia oxidation reactor structure vertical view;
Among the figure: cylindrical reactor body 1, water inlet pipe 2, sludge settling district 3, overflow weir 4, sealing cover 5, mud backflow seam 6, agitator 7, stir shaft sleeve 8, air outlet 9.
Embodiment
As shown in the figure, anaerobic ammonia oxidation reactor has cylindrical reactor body 1, be provided with water inlet pipe 2 in the reactor body lower end, the reactor body upper end is provided with sludge settling district 3, overflow weir 4, sealing cover 5, be provided with mud backflow seam 6 in lower end, sludge settling district, inside reactor is provided with agitator 7, is provided with stir shaft sleeve 8 and air outlet 9 on sealing cover, and anaerobic ammonia oxidizing bacteria exists with the form of granule sludge in the reactor.
Described cylindrical reactor body 1 aspect ratio H/D is 1.5～2.5, and the level inclination α of lower bevel is 50 °～55 °.The height in sludge settling district 3 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 base plate and the angle β between the horizontal plane of mud backflow seam (6) are 50 °～55 °.Water inlet pipe 2 is arranged at the above 15～20mm place of reactor bottom.Agitator is arranged at the reactor body center from reactor bottom 50～150mm place, and stir shaft links by the sleeve that is immersed in the reaction solution.Sealing cover is active type, and is cylindrical, tips upside down on the reactor body outside, and sealing cover cylindrical shell lower end is immersed in 30～50mm place of reaction solution.Anaerobic ammonium oxidation granular sludge is a kind of biological particles that forms of being assembled by anaerobic ammonium oxidizing bacteria.
Sealing cover of the present invention is active type, and is cylindrical, tips upside down on the reactor body outside, can separate with reactor body when needing; Sealing cover cylindrical shell lower end is immersed in the reaction solution, can prevent that extraneous air from entering reaction zone; Sealing cover is provided with the air outlet, can discharge the gas that produces in the reactor.Lower end, sludge settling district is provided with mud backflow seam, can allow the mud of settling region return reaction zone.Inside reactor is provided with agitator, can strengthen matrix and biological contacting, and stir shaft links by sleeve and the agitator that is immersed in the reaction solution, can prevent that extraneous air from entering reaction zone.Anaerobic ammonia oxidizing bacteria exists with the form of granule sludge in the reactor, and sedimentation function is good, is easy to mud-water separation.
Anaerobic ammonia oxidation reactor can make up with steel or Steel Concrete, and build jointly in same round pond reaction chamber and sludge settling chamber.Seed sludge adds to reaction zone.Sewage imports the reaction zone bottom by water inlet pipe.Reaction zone stirs by stirrer solid-liquid is fully contacted, and effectively improves mass-transfer efficiency.The sludge settling district is around reactor body.Settling region liquid stream lift velocity is slower, and the mud that is brought to the settling region is effectively separated, and relies on mud gravity to return reaction zone.Water outlet is discharged by the settling region overflow weir.
The present invention improves activated sludge settling property by granular sludge, reclaims granule sludge, improves sludge concentration by build settling tank jointly on device top, improves mass-transfer efficiency by stirring.Evidence, Kai Fa novel anaerobic ammonia oxidation reactor has good Anammox performance in view of the above.In pH7.5～8.5, under the condition that temperature of reaction is 25～35 ℃, can bear high water inlet ammonia and nitrite concentration, have high volume transformation efficiency, operating performance is stable.
Claims (7)
1, a kind of anaerobic ammonia oxidation reactor, it is characterized in that: it has cylindrical reactor body (1), be provided with water inlet pipe (2) in the reactor body lower end, the reactor body upper end is provided with sludge settling district (3), overflow weir (4), sealing cover (5), be provided with mud backflow seam (6) in lower end, sludge settling district, inside reactor is provided with agitator (7), is provided with stir shaft sleeve (8) and air outlet (9) on sealing cover, and anaerobic ammonia oxidizing bacteria exists with the form of granule sludge in the reactor.
2, a kind of anaerobic ammonia oxidation reactor according to claim 1 is characterized in that: described cylindrical reactor body (1) aspect ratio H/D is 1.5～2.5, and the level inclination α of lower bevel is 50 °～55 °.
3, a kind of anaerobic ammonia oxidation reactor according to claim 1, it is characterized in that: the height in described sludge settling district (3) 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 mud backflow seam (6) are 50 °～55 °.
4, a kind of anaerobic ammonia oxidation reactor according to claim 1 is characterized in that: described water inlet pipe (2) is arranged at the above 15～20mm place of reactor bottom.
5, a kind of anaerobic ammonia oxidation reactor according to claim 1 is characterized in that: described agitator is arranged at the reactor body center from reactor bottom 50～150mm place, and stir shaft links by the sleeve that is immersed in the reaction solution.
6, a kind of anaerobic ammonia oxidation reactor according to claim 1, it is characterized in that: described sealing cover is designed to active type, and is cylindrical, tips upside down on the reactor body outside, and sealing cover cylindrical shell lower end is immersed in 30～50mm place of reaction solution.
7, a kind of anaerobic ammonia oxidation reactor according to claim 1 is characterized in that: described anaerobic ammonium oxidation granular sludge is a kind of biological particles that forms of being assembled by anaerobic ammonium oxidizing bacteria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100616940A CN1295163C (en) | 2005-11-25 | 2005-11-25 | Anaerobic ammonia oxidation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100616940A CN1295163C (en) | 2005-11-25 | 2005-11-25 | Anaerobic ammonia oxidation reactor |
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| Publication Number | Publication Date |
|---|---|
| CN1789170A CN1789170A (en) | 2006-06-21 |
| CN1295163C true CN1295163C (en) | 2007-01-17 |
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| CNB2005100616940A Expired - Fee Related CN1295163C (en) | 2005-11-25 | 2005-11-25 | Anaerobic ammonia oxidation reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493622B (en) * | 2011-12-21 | 2014-03-05 | 湖北格林森新型建材科技有限公司 | Wallboard installing component |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5582388B2 (en) * | 2010-03-12 | 2014-09-03 | 三菱レイヨン株式会社 | Biological treatment system and biological treatment method |
| CN101913704B (en) * | 2010-08-10 | 2012-01-25 | 浙江大学 | Arc reactor |
| CN102249407A (en) * | 2011-05-13 | 2011-11-23 | 杭州师范大学 | High-efficiency anaerobic ammonia oxidation reactor |
| CN102730829A (en) * | 2012-06-13 | 2012-10-17 | 杭州师范大学 | Ordered internally-circulated anaerobic ammoxidation reactor |
| CN102775027B (en) * | 2012-08-15 | 2013-07-24 | 北京城市排水集团有限责任公司 | Granular sludge integrated autotrophic nitrogen removal device and operating method thereof |
| CN114477441A (en) * | 2022-03-11 | 2022-05-13 | 西安建筑科技大学 | Dynamic membrane anaerobic ammonia oxidation reactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717941Y (en) * | 2004-08-02 | 2005-08-17 | 西安建筑科技大学 | Liquid floating cover sequential batch intermittent anaerobic reactor |
| CN1689986A (en) * | 2004-04-23 | 2005-11-02 | 中国科学院生态环境研究中心 | Aerobic initiating method of anaerobic ammoxidation reactor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689986A (en) * | 2004-04-23 | 2005-11-02 | 中国科学院生态环境研究中心 | Aerobic initiating method of anaerobic ammoxidation reactor |
| CN2717941Y (en) * | 2004-08-02 | 2005-08-17 | 西安建筑科技大学 | Liquid floating cover sequential batch intermittent anaerobic reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493622B (en) * | 2011-12-21 | 2014-03-05 | 湖北格林森新型建材科技有限公司 | Wallboard installing component |
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| CN1789170A (en) | 2006-06-21 |
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Granted publication date: 20070117 Termination date: 20091225 |