CN2530947Y - Internal recycling particle sludge bed nitrofication reactor - Google Patents
Internal recycling particle sludge bed nitrofication reactor Download PDFInfo
- Publication number
- CN2530947Y CN2530947Y CN02215398U CN02215398U CN2530947Y CN 2530947 Y CN2530947 Y CN 2530947Y CN 02215398 U CN02215398 U CN 02215398U CN 02215398 U CN02215398 U CN 02215398U CN 2530947 Y CN2530947 Y CN 2530947Y
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- CN
- China
- Prior art keywords
- reaction chamber
- reactor
- sludge
- chamber
- section reaction
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- Expired - Fee Related
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- 239000010802 sludge Substances 0.000 title claims abstract description 32
- 239000002245 particle Substances 0.000 title description 2
- 238000004064 recycling Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 238000005273 aeration Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 15
- 238000006396 nitration reaction Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 229910021529 ammonia Inorganic materials 0.000 abstract description 10
- 238000001556 precipitation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 7
- 239000011259 mixed solution Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002351 wastewater Substances 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
- 239000007789 gas Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance 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
- 241000589651 Zoogloea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 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
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect 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
- 238000002156 mixing Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction 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
- 238000010008 shearing 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
-
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses an internal circulation granular sludge bed nitration reactor. A reactor is successively provided with an up segment reaction chamber, a down segment reaction chamber and a sludge precipitation chamber. An upper end of the sludge precipitation chamber is provided with a precipitation chamber, a lower end is provided with a sludge return slot. A saw tooth weir is arranged around the precipitation chamber. A lower end of the up segment reaction chamber is successively provided with a water distribution pipe and an aeration head, a bottom of the reactor is provided with a sludge discharge pipe. The advantages are: 1) A microorganism for nitration exists in the shape of granular sludge and forms a granular sludge bed inside the reactor, thus the nitration potential is great and the mud-water separation effect is excellent. 2) A mixture cycles constantly inside the device at a certain speed, strengthening the mass transfer process. 3) The precipitation chamber is arranged on the external ring of the down segment reaction chamber, having compact structure and saving a secondary clarifier and sludge return facilities. 4) The reactor has excellent biological nitrification performance, standing high water intaking ammonia concentration performance, having high volume transformation efficiency and stable operation performance.
Description
Technical field
The utility model relates to the granular mud bed nitrator of a kind of internal recycle.
Background technology
Along with the development of industrial and agricultural production and the raising of living standards of the people, particularly along with the enforcement of various " vegetables-basket-works ", the quantity discharged of itrogenous organic substance sharply increases.What two stage biological was handled starts successively, and Organic pollutants have been played good containment effect.But the nitrogen content of two stage biological treat effluent 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 1. consume dissolved oxygen, causes water hypoxia; 2. influence the oxygen transmission of fish strontium, fish are caused death; 3. generate chloramines with the chlorine effect, influence cholorination and handle.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 and chemistry 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-performance bio nitrator is significant.
The method that is used for sewage (or waste water) biological treatment can be divided into activated sludge process and biomembrance process, wherein the former dominate.The nitration processes that adopts is also mainly developed by activated sludge process at present.Activated sludge process is directly used in nitration reaction, behind the aeration tank, often need builds secondary sedimentation basins (abbreviation second pond) and come separated sludge,, satisfy the requirement of effluent quality simultaneously to guarantee to have in the aeration tank active sludge of sufficient amount.The isolating mud of second pond is sent the aeration tank back to by reflux pump, not only increases equipment, and consumption of power is also destroyed the mud structure, is unfavorable for the formation of the granule sludge that sedimentation function is good and the raising of sludge concentration.In addition, air escapes on the bubble after importing the bottom, aeration tank by aeration head, and the end exhausts part and is difficult to once more to be caused coefficient of oxygen utilization lower by biological utilisation.
Summary of the invention
The purpose of this utility model provides the granular mud bed nitrator of a kind of internal recycle.
In reactor, be provided with up-flow section reaction chamber successively, fall stream section reaction chamber and sludge settling chamber, upper end, sludge settling chamber is provided with the settling chamber, the lower end is provided with mud backflow seam, be provided with the sawtooth weir around the settling chamber, up-flow section reaction chamber lower end is provided with water distributor, aeration head successively, is provided with the mud discharging pipe at reactor bottom.
The utility model has the advantages that: the microorganism that 1) carries out nitration reaction exists with the form of granule sludge, forms granular mud bedly in reactor, and the nitration reaction potentiality are big, and mud-water separation is effective.2) 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.3) settling chamber builds in the outer shroud that falls stream section reaction chamber, can directly return intermediary up-flow section reaction chamber by the seam that refluxes, compact construction not only, and saved secondary sedimentation basins and mud backflow facility.4) this reactor has good biological nitration performance, can bear high water inlet ammonia concentration (78.49mmolL
-1), have high volume transformation efficiency (163.18mmolL
-1D
-1), operating performance is stablized (the ammonia clearance remains on more than 94.42%).
Description of drawings
Fig. 1 is the structural representation of the granular mud bed nitrator of internal recycle;
Fig. 2 is the vertical view of the granular mud bed nitrator of internal recycle;
Fig. 3 is the utility model aeration head structural representation;
Fig. 4 is the utility model water distributor structural representation.
Embodiment
The granular mud bed nitrator of internal recycle is to be provided with up-flow section reaction chamber 3 successively in reactor, to fall stream section reaction chamber 4 and sludge settling chamber 6,6 upper ends, sludge settling chamber are provided with settling chamber 7, the lower end is provided with mud backflow seam 5, be provided with the sawtooth weir around the settling chamber 7, up-flow section reaction chamber 3 lower ends are provided with water distributor 2, aeration head 1 successively, are provided with mud discharging pipe 8 at reactor bottom.
Said aeration head 1 is embedded in reactor bottom, with reactor bottom surface level; Water distributor 2 is arranged at aeration head top, water distributor plane and the about 200mm of aeration head planar spacing.
Up-flow section reaction chamber 3 and the level inclination (A-a) that falls the upper inclined surface of dividing wall between the stream section reaction chamber 4 are 48～52 °, the level inclination of lower bevel (A-b) is 128～132 °, the level inclination (A-c) of mud backflow seam 5 lower bevel is 45 °, and up-flow section reaction chamber is uniformly distributed in around the dividing wall with several ducts that fall stream section reaction chamber.
The granular mud bed nitrator of internal recycle can be 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 (or waste water) import up-flow section reaction chamber bottom by aeration head and water distributor 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 and fall a stream section reaction chamber by being uniformly distributed in a plurality of ducts around the dividing wall.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 mud backflow seam, 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 gravity to return reaction chamber.The sawtooth weir is located at around the settling chamber, and water outlet is discharged by the mud discharging pipe.Whole bio-reactor flow process is short, compact construction.Because the shearing action of ascending gas gentleness, the zoogloea of microorganisms forms flco through collision, and flco is further developed into granule sludge again.The proportion of granule sludge is about 1.05, and precipitation very easily in the hydrostatic environment of settling chamber, and be easy to suspend in reaction chamber and circulation for improving the mass transfer effect of reactor, thereby guarantees that its efficient stable operation created condition.
Evidence, the granular mud bed nitrator of Kai Fa internal recycle 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 (78.49mmolL
-1), have high volume transformation efficiency (163.18molm
-3D
-1), operating performance is stablized (the ammonia clearance remains on more than 94.42%).In the operational process of gas stripping inner circulation reactor, can produce nitrifying granular activated sludge.The time that granule sludge begins to occur is about 45 days, the particle diameter mean value 0.83mm of granule sludge, settling velocity 55.53mh
-1, ammoxidation activity 95molkg
-1VSd
-1
Claims (3)
1. granular mud bed nitrator of internal recycle, it is characterized in that in reactor, being provided with up-flow section reaction chamber [3] successively, fall stream section reaction chamber [4] and sludge settling chamber [6], upper end, sludge settling chamber [6] is provided with settling chamber [7], the lower end is provided with mud backflow seam [5], settling chamber [7] is provided with the sawtooth weir all around, and up-flow section reaction chamber [3] lower end is provided with water distributor [2], aeration head [1] successively, is provided with mud discharging pipe [8] at reactor bottom.
2. the granular mud bed nitrator of a kind of internal recycle according to claim 1 is characterized in that said aeration head [1] is embedded in reactor bottom, with reactor bottom surface level; Water distributor [2] is arranged at aeration head top, water distributor plane and the about 200mm of aeration head planar spacing.
3. the granular mud bed nitrator of a kind of internal recycle according to claim 1, it is characterized in that said up-flow section reaction chamber [3] and falling the level inclination (A-a) that flows the upper inclined surface of dividing wall between the section reaction chamber [4] is 48～52 °, the level inclination of lower bevel (A-b) is 128～132 °, the level inclination (A-c) of mud backflow seam [5] lower bevel is 45 °, and up-flow section reaction chamber is uniformly distributed in around the dividing wall with several ducts that fall stream section reaction chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02215398U CN2530947Y (en) | 2002-01-25 | 2002-01-25 | Internal recycling particle sludge bed nitrofication reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02215398U CN2530947Y (en) | 2002-01-25 | 2002-01-25 | Internal recycling particle sludge bed nitrofication reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2530947Y true CN2530947Y (en) | 2003-01-15 |
Family
ID=33694545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02215398U Expired - Fee Related CN2530947Y (en) | 2002-01-25 | 2002-01-25 | Internal recycling particle sludge bed nitrofication reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2530947Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344556C (en) * | 2005-02-18 | 2007-10-24 | 浙江工业大学 | Bioreactor for sewage treatment |
| CN100363273C (en) * | 2006-02-08 | 2008-01-23 | 江南大学 | circulating type aerobe reactor for treating organic waste |
| 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 |
-
2002
- 2002-01-25 CN CN02215398U patent/CN2530947Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344556C (en) * | 2005-02-18 | 2007-10-24 | 浙江工业大学 | Bioreactor for sewage treatment |
| CN100363273C (en) * | 2006-02-08 | 2008-01-23 | 江南大学 | circulating type aerobe reactor for treating organic waste |
| 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 |
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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: 20030115 |