CN102701445B - Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water - Google Patents
Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water Download PDFInfo
- Publication number
- CN102701445B CN102701445B CN201210224667.0A CN201210224667A CN102701445B CN 102701445 B CN102701445 B CN 102701445B CN 201210224667 A CN201210224667 A CN 201210224667A CN 102701445 B CN102701445 B CN 102701445B
- Authority
- CN
- China
- Prior art keywords
- anaerobic ammonia
- water inlet
- oxidation reactor
- ammonia oxidation
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a normal-temperature starting domestication method for an anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water and relates to the starting domestication method of a reactor. The method aims to solve the problems that starting time of the anaerobic ammoxidation reactor is long, and that the dissolved oxygen in the inflow water brings the adverse effect on the anaerobic ammoxidation process and causes high energy consumption. The method comprises the following steps: 1, culturing a denitrification biomembrane; 2, starting the anaerobic ammoxidation reactor; and, 3, domesticating the anaerobic ammoxidation reactor. The method provided by the invention uses the denitrification biomembrane as the secondary seed sludge and starts the anaerobic ammoxidation reactor within 100d successfully; under the condition that the inflow water contains 1-1.5mg/l of dissolved oxygen, the method provided by the invention can domesticate microflora in which the aerobic bacteria and anaerobic bacteria are co-existing. The method provided by the invention reduces the operation temperature of the anaerobic ammoxidation reactor from 35 DEG C to (19-22) DEG C, and greatly reduces the operation cost; meanwhile, the reactor system still operates stably and realizes high denitrification effect.
Description
Technical field
The present invention relates to the startup acclimation method of reactor.
Background technology
Anammox is a kind of with NH
4 +for electron donor, with NO
2 -for electron acceptor(EA) generates N
2process, in bio-denitrifying sewage field, there is good development prospect.The greatest problem that anaerobic ammonia oxidation process faces is: anaerobic ammonium oxidizing bacteria poor growth, and generation time is long, and the doubling time reaches 11 days, and cell yield is low, is 0.11gVSS/gNH
4 +-N, causes the enrichment time of anaerobic ammonia oxidation reactor very long, and generally in 1～1.5 year, the bioaccumulation efficiency of anaerobic ammonium oxidizing bacteria is low.For poky bacterial classification, keep its quantity in reactor most important for smooth enrichment, that is to say, the ability that reactor is held back mud often determines success enrichment anaerobic ammonium oxidizing bacteria.Utilize biofilm reactor effectively to hold and stay microorganism, make hydraulic detention time (HRT) thorough separation with sludge age.
On the other hand, anaerobic ammonia oxidation process is as the subsequent technique of short distance nitration, will inevitably be subject to the impact of contained dissolved oxygen in short distance nitration water outlet, conventional anaerobic ammonia oxidation process need to be controlled at water temperature 35 ℃ of left and right simultaneously, need lot of energy, running cost is higher, so research normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation process seems particularly important, not yet finds up to now the report in this respect.
Summary of the invention
The object of the invention is the deficiency of growing start time in order to overcome anaerobic ammonia oxidation reactor, reduce the disadvantageous effect of contained dissolved oxygen to anaerobic ammonia oxidation process in water inlet, in line with energy-saving and cost-reducing principle, provide the startup acclimation method of normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor simultaneously.
The startup acclimation method of normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor is realized according to the following steps:
One, the cultivation of denitrification biofilm: in the anaerobic ammonia oxidation reactor of filling ceramics filling, the denitrification mud of peaceful sewage work second pond is as kind of a mud take Harbin City, water inlet NO
3 --N concentration is 60～75mg/L, at 21 ℃ of temperature, carries out the cultivation of denitrification biofilm, after 20d, adheres to the denitrification biofilm of lark on ceramics filling;
Two, the startup of anaerobic ammonia oxidation reactor: adopting the sanitary sewage of Harbin Institute of Technology's two dependents' district, district water drains and tap water is water inlet, controls NH
4 +-N and NO
2 -the ratio of-N is 1:1～1.2, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, influent COD is 48～60mg/L, under 33～35 ℃ of water temperatures of normal pressure, take the denitrification biofilm in step 1 as secondary kind mud, carry out the startup of anaerobic ammonia oxidation reactor, initial start stage NH
4 +-N and NO
2 --N concentration is controlled at 50～75mg/L, starts anaerobic ammonia oxidation reactor in 100d, as water outlet NH
4 +-N clearance is 99.9%～100%, NO
2 --N clearance be 98%～99.9% and maintain two weeks after be steady running, then adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, to steady running again;
Three, the domestication of anaerobic ammonia oxidation reactor: after Anammox steady running, water temperature is down to 19～22 ℃, NH
4 +-N and NO
2 --N concentration is controlled at 70～85mg/L, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, carries out the domestication of anaerobic ammonia oxidizing bacteria, and the domestication time is surrounding, as water outlet NH
4 +-N clearance is 95.2%～100%, NO
2 --N clearance is 99.9%～100% and maintains after one week, completes;
Wherein in step 1, haydite particle diameter is 1～3mm; In intaking in step 2, the volume ratio of sanitary sewage and tap water is 1:4.
The present invention, compared with existing anaerobic ammonium oxidizing bacteria acclimation method, has the following advantages: denitrification mud wide material sources, be easy to obtain, and take denitrification biofilm as secondary kind mud, can in 100d, successfully start anaerobic ammonia oxidation reactor, water outlet NH
4 +-N clearance is 99.9%～100%, NO
2 --N clearance is 98%～99.9%, and volumetric loading is 141mgTN/ (Ld), and volume is removed load for 127.5mg TN/ (Ld).When water temperature is down to after 19～22 ℃, continue to improve after hydraulic load, maximum volume is removed load can reach 1126.6mg TN/ (Ld).
Anaerobic ammonia oxidation process, as the subsequent technique of short distance nitration, will inevitably be subject to the impact of contained dissolved oxygen in short distance nitration water outlet.The present invention, in the situation that water inlet contains 1～1.5mg/L dissolved oxygen, can tame out the microflora that aerobic bacteria and anerobe coexist.Ripe filling surface growth has ammonia oxidation bacteria and/or NOB, gos deep into filler inside, and oxygen transmission is obstructed and oxygen is consumed gradually, produces oxygen-starved area, is conducive to the anaerobic ammonia oxidizing bacteria of growing.So the aerobic bacteria on filler top layer can be the anaerobic ammonia oxidizing bacteria solution deoxygenation poison of filler inside.
The present invention is down to 19～22 ℃ by anaerobic ammonia oxidation reactor operating temperature by 35 ℃, greatly reduces running cost, and the operation of simultaneous reactions device system is still stable, and nitric efficiency is high.
Accompanying drawing explanation
Fig. 1 is start-up course ammonia nitrogen in embodiment five, nitrite nitrogen change curve, and wherein ■ represents influent ammonia nitrogen, and represents water outlet ammonia nitrogen, ● represent water inlet nitrite nitrogen, zero represents water outlet nitrite nitrogen;
Fig. 2 is start-up course nitre nitrogen change curve in embodiment five, wherein ◆ represent water inlet, ◇ represents water outlet;
Fig. 3 is ammonia nitrogen, nitrite nitrogen change curve under 19～22 ℃ of water temperatures in embodiment five, and wherein ■ represents influent ammonia nitrogen, and represents water outlet ammonia nitrogen, ● enter to represent water inlet nitrite nitrogen, zero represents water outlet nitrite nitrogen;
Fig. 4 is nitre nitrogen change curve under 19～22 ℃ of water temperatures in embodiment five, wherein ◆ represent water inlet, ◇ represents water outlet;
Fig. 5 is reactor nitrogen removal rate and main reaction region water temperature, DO variation diagram under 19～22 ℃ of water temperatures in embodiment five, wherein ▲ representing water temperature, ■ represents DO, ● represent nitrogen removal rate.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: the startup acclimation method of present embodiment normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor is realized according to the following steps:
One, the cultivation of denitrification biofilm: in the anaerobic ammonia oxidation reactor of filling ceramics filling, the denitrification mud of peaceful sewage work second pond is as kind of a mud take Harbin City, water inlet NO
3 --N concentration is 60～75mg/L, at 21 ℃ of temperature, carries out the cultivation of denitrification biofilm, after 20d, adheres to the denitrification biofilm of lark on ceramics filling;
Two, the startup of anaerobic ammonia oxidation reactor: adopting the sanitary sewage of Harbin Institute of Technology's two dependents' district, district water drains and tap water is water inlet, controls NH
4 +-N and NO
2 -the ratio of-N is 1:1～1.2, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, influent COD is 48～60mg/L, under 33～35 ℃ of water temperatures of normal pressure, take the denitrification biofilm in step 1 as secondary kind mud, carry out the startup of anaerobic ammonia oxidation reactor, initial start stage NH
4 +-N and NO
2 --N concentration is controlled at 50～75mg/L, starts anaerobic ammonia oxidation reactor in 100d, as water outlet NH
4 +-N clearance is 99.9%～100%, NO
2 --N clearance be 98%～99.9% and maintain two weeks after be steady running, then adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, to steady running again;
Three, the domestication of anaerobic ammonia oxidation reactor: after Anammox steady running, water temperature is down to 19～22 ℃, NH
4 +-N and NO
2 --N concentration is controlled at 70～85mg/L, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, carries out the domestication of anaerobic ammonia oxidizing bacteria, and the domestication time is surrounding, as water outlet NH
4 +-N clearance is 95.2%～100%, NO
2 --N clearance is 99.9%～100% and maintains after one week, completes;
Wherein in step 1, haydite particle diameter is 1～3mm; In intaking in step 2, the volume ratio of sanitary sewage and tap water is 1:4.
In present embodiment step 2, control NH
4 +-N and NO
2 -the ratio of-N is 1:1～1.2, and the mode of employing is to add (NH in water inlet
4)
2sO
4and NaNO
2.
In present embodiment step 2, adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, and object is to weaken COD in water inlet to be utilized by heterotrophic bacterium, the impact on anaerobic ammonium oxidizing bacteria then.
In present embodiment step 2, adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, extremely steady running again: in operational process, and NO
2 --N removal amount and NH
4 +-N removal amount ratio is by unstable 1.0～1.3, the NO that is progressively transitioned into
3 --N growing amount and NH
4 +-N removal amount ratio is by unstable transition to 0.1～0.3, nitrogen removal rate rises to 86.6% by 10%, pH is high by 0.4 for the water inlet of water outlet pH average specific, mud color is progressively transitioned into brown by lark, finally be the redness of representing Anammox mud characteristic feature, especially the most obvious with reactor bottom mud colour-change, reflected that Anammox mud occupies an leading position gradually in reactor.
Embodiment two: what present embodiment was different from embodiment one is that in step 1, the interpolation of ceramics filling in anaerobic ammonia oxidation reactor is highly 0.45～0.5m.Other step and parameter are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one is that the density of ceramics filling in step 1 is 1.00～1.50g/cm, porosity > 30%, specific surface area is 1.8～3.0cm
2/ g.Other step and parameter are identical with embodiment one.
Embodiment four: what present embodiment was different from one of embodiment one to three is that in step 1, denitrification mud is taken from the peaceful sewage work in Harbin City second pond, anaerobe bacterium in denitrification mud is a kind of in Desulfovibrio, nitrate-reducing bacteria, thiobacillus denitrificans, denitrogenation utmost point hair bacillus, Desulfotomaculum, anaerobic ammonia oxidizing bacteria or wherein several combination, and anaerobe bacterium accounts for 40%～50% of denitrification sludge quality.Other step and parameter are identical with one of embodiment one to three.
Embodiment five: the startup acclimation method of present embodiment normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor is realized according to the following steps:
One, the cultivation of denitrification biofilm: in the anaerobic ammonia oxidation reactor of filling ceramics filling, the denitrification mud of peaceful sewage work second pond is as kind of a mud take Harbin City, water inlet NO
3 --N concentration is 70mg/L, at 21 ℃ of temperature, carries out the cultivation of denitrification biofilm, after 20d, adheres to the denitrification biofilm of lark on ceramics filling;
Two, the startup of anaerobic ammonia oxidation reactor: adopting the sanitary sewage of Harbin Institute of Technology's two dependents' district, district water drains and tap water is water inlet, controls NH
4 +-N and NO
2 -the ratio of-N is 1:1.2, and water inlet pH value is 7.5, and water inlet DO is 1mg/L, and influent COD is 50mg/L, under 35 ℃ of water temperatures of normal pressure, take the denitrification biofilm in step 1 as secondary kind mud, carries out the startup of anaerobic ammonia oxidation reactor, initial start stage NH
4 +-N and NO
2 --N concentration is controlled at 50～75mg/L, starts anaerobic ammonia oxidation reactor in 100d, as water outlet NH
4 +-N clearance is 99.99%, NO
2 --N clearance be 98.9% and maintain two weeks after be steady running, then adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, to steady running again;
Three, the domestication of anaerobic ammonia oxidation reactor: after Anammox steady running, water temperature is down to 19～22 ℃, NH
4 +-N and NO
2 --N concentration is controlled at 70～85mg/L, and water inlet pH value is 7.5, and water inlet DO is 1mg/L, carries out the domestication of anaerobic ammonia oxidizing bacteria, and the domestication time is surrounding, as water outlet NH
4 +-N clearance is 98%, NO
2 --N clearance is 99.9% and maintains after one week, completes;
Wherein in step 1, haydite particle diameter is 1～3mm; In intaking in step 2, the volume ratio of sanitary sewage and tap water is 1:4.
NO after 20d in present embodiment step 1
3 --N clearance approximately 92%.
In present embodiment step 3, carry out the domestication of anaerobic ammonia oxidizing bacteria, in 28d, nitrogen removal rate rises to 75% by 15%.Continue domestication, when nitrogen removal rate reaches 80%, stablize one week at every turn, then adjust flooding quantity, each flooding quantity doubles, and continues to improve hydraulic load.Maximum volume is removed load can reach 1126.6mg TN/ (Ld).
In present embodiment, Fig. 1 is shown in start-up course ammonia nitrogen, nitrite nitrogen variation; Start-up course nitre nitrogen changes sees Fig. 2; Under 19～22 ℃ of water temperatures, Fig. 3 is shown in ammonia nitrogen, nitrite nitrogen variation; Under 19～22 ℃ of water temperatures, Fig. 4 is shown in the variation of nitre nitrogen; Under 19～22 ℃ of water temperatures, Fig. 5 is shown in reactor nitrogen removal rate and main reaction region water temperature, DO variation.
Claims (4)
1. the startup acclimation method of normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor, is characterized in that it realizes according to the following steps:
One, the cultivation of denitrification biofilm: in the anaerobic ammonia oxidation reactor of filling ceramics filling, the denitrification mud of peaceful sewage work second pond is as kind of a mud take Harbin City, water inlet NO
3 --N concentration is 60～75mg/L, at 21 ℃ of temperature, carries out the cultivation of denitrification biofilm, after 20d, adheres to the denitrification biofilm of lark on ceramics filling;
Two, the startup of anaerobic ammonia oxidation reactor: adopting the sanitary sewage of Harbin Institute of Technology's two dependents' district, district water drains and tap water is water inlet, controls NH
4 +-N and NO
2 -the ratio of-N is 1:1～1.2, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, influent COD is 48～60mg/L, under 33～35 ℃ of water temperatures of normal pressure, take the denitrification biofilm in step 1 as secondary kind mud, carry out the startup of anaerobic ammonia oxidation reactor, initial start stage NH
4 +-N and NO
2 --N concentration is controlled at 50～75mg/L, starts anaerobic ammonia oxidation reactor in 100d, as water outlet NH
4 +-N clearance is 99.9%～100%, NO
2 --N clearance be 98%～99.9% and maintain two weeks after be steady running, then adopting tap water is water inlet operation anaerobic ammonia oxidation reactor, to steady running again;
Three, the domestication of anaerobic ammonia oxidation reactor: after Anammox steady running, water temperature is down to 19～22 ℃, NH
4 +-N and NO
2 --N concentration is controlled at 70～85mg/L, and water inlet pH value is 7.5～7.8, and water inlet DO is 1～1.5mg/L, carries out the domestication of anaerobic ammonia oxidizing bacteria, and the domestication time is surrounding, as water outlet NH
4 +-N clearance is 95.2%～100%, NO
2 --N clearance is 99.9%～100% and maintains after one week, completes;
Wherein in step 1, haydite particle diameter is 1～3mm; In intaking in step 2, the volume ratio of sanitary sewage and tap water is 1:4.
2. the startup acclimation method of normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor according to claim 1, is characterized in that in step 1, the interpolation of ceramics filling in anaerobic ammonia oxidation reactor is highly 0.45～0.5m.
3. the startup acclimation method of normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor according to claim 1, the density that it is characterized in that ceramics filling in step 1 is 1.00～1.50g/cm, porosity > 30%, specific surface area is 1.8～3.0cm
2/ g.
4. according to the startup acclimation method of the normal temperature low dissolved axygen water inlet anaerobic ammonia oxidation reactor described in claim 1,2 or 3, it is characterized in that in step 1, denitrification mud is taken from the peaceful sewage work in Harbin City second pond, anaerobe bacterium in denitrification mud is a kind of in Desulfovibrio, nitrate-reducing bacteria, thiobacillus denitrificans, denitrogenation utmost point hair bacillus, Desulfotomaculum, anaerobic ammonia oxidizing bacteria or wherein several combination, and anaerobe bacterium accounts for 40%～50% of denitrification sludge quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224667.0A CN102701445B (en) | 2012-07-02 | 2012-07-02 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224667.0A CN102701445B (en) | 2012-07-02 | 2012-07-02 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102701445A CN102701445A (en) | 2012-10-03 |
| CN102701445B true CN102701445B (en) | 2014-04-23 |
Family
ID=46894585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210224667.0A Expired - Fee Related CN102701445B (en) | 2012-07-02 | 2012-07-02 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102701445B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976485B (en) * | 2012-12-10 | 2013-12-04 | 东北电力大学 | Method and device for fast cultivation of anaerobic granular sludge for treating swine wastewater |
| CN104496017B (en) * | 2014-11-25 | 2016-04-06 | 山东省农业科学院农业资源与环境研究所 | A kind of method utilizing anaerobic filter to start Anammox fast |
| CN105174448B (en) * | 2015-10-13 | 2017-05-31 | 沈阳建筑大学 | A kind of Anammox and denitrification coupling device and its control operation method |
| CN106396098B (en) * | 2016-12-09 | 2019-07-19 | 中国石油大学(华东) | A kind of high-salt wastewater simultaneous denitrification process for sulfur removal |
| CN106517507B (en) * | 2016-12-19 | 2022-10-04 | 河北工业大学 | Method and device for quickly starting anaerobic ammonia oxidation at normal temperature |
| CN108101310B (en) * | 2017-12-29 | 2020-12-25 | 青岛大学 | Device and method for treating desulfurization and denitrification wastewater of thermal power plant |
| CN110117558B (en) * | 2019-04-15 | 2020-10-30 | 杭州师范大学 | Method for culturing synchronous denitrification and desulfurization mixed flora |
| CN111422993B (en) * | 2020-03-12 | 2022-08-23 | 广东工业大学 | Method for rapidly starting autotrophic ammonia oxidation by using heterotrophic denitrification granular sludge |
| CN114262055B (en) * | 2020-11-12 | 2023-03-21 | 王凯军 | Method for culturing anaerobic ammonium oxidation biomembrane under mainstream condition |
| CN113683188B (en) * | 2021-09-13 | 2022-08-05 | 江苏大学 | Method and device for electrochemically domesticating anaerobic ammonium oxidation bacteria |
| CN114477627A (en) * | 2022-01-05 | 2022-05-13 | 安阳工学院 | Method for promoting adherent growth of anaerobic ammonium oxidation sludge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381374C (en) * | 2005-01-21 | 2008-04-16 | 浙江大学 | Method for starting anaerobic ammoxidation reactor |
| CN101343116B (en) * | 2008-07-18 | 2011-06-15 | 北京工业大学 | Quick start method for anaerobic ammonia oxidation bioreactor for urban sewage |
-
2012
- 2012-07-02 CN CN201210224667.0A patent/CN102701445B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102701445A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102701445B (en) | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water | |
| CN110451641B (en) | Starting method of short-cut denitrification and anaerobic ammonia oxidation coupling denitrification integrated system | |
| CN108545830B (en) | Process for enhancing partial shortcut nitrification anaerobic ammonia oxidation of continuous flow municipal sewage by utilizing sludge fermentation | |
| CN106830324B (en) | Sectional water inlet A2Device and method for enhancing biological nitrogen and phosphorus removal by adopting/O (oxygen/phosphorus) process | |
| CN103588352B (en) | Two-stage backflow simultaneous nitrogen and phosphorus removal device and technology for denitrification phosphorus removal, shortcut nitrification and anaerobic ammonia oxidation of municipal sewage | |
| CN102718314B (en) | Method for quick starting of anaerobic ammonium oxidation technology at room temperature in low matrix | |
| CN101484394B (en) | A method for removing the contamination of c, n utilizing heterotrophic ammonia-oxidizing bacteria | |
| CN102115259B (en) | Method for converting active sludge into autotrophic denitrified sludge based on mixed type continuous flow reactor | |
| CN105481093A (en) | System and method for municipal wastewater treatment through continuous flow step-feed water partial nitrification/anaerobic ammonia oxidation | |
| CN104986923A (en) | Multi-stage A/O biological nitrogen removal device and method based on shortcut nitrification-anaerobic ammonia oxidation of municipal sewage | |
| CN101525179A (en) | Method for anaerobic ammonia oxidation treatment of low-concentration ammonia nitrogen wastewater | |
| CN109879416B (en) | Method for starting mainstream anaerobic ammonia oxidation reactor | |
| CN106946352B (en) | Device and method of integrated anaerobic ammonia oxidation autotrophic nitrogen removal biomembrane reactor | |
| CN112408593B (en) | FA pretreatment-based reinforced synchronous short-cut denitrification anaerobic ammonia oxidation coupled in-situ fermentation deep denitrification device and method | |
| CN109160606B (en) | Method for producing methane and efficiently and deeply denitrifying urban sewage | |
| CN103086508B (en) | Microbial fuel cell wastewater treatment system for improving nitrogen removal effect | |
| CN103723821A (en) | Method for rapid mutagenesis of autotrophic nitrosation sludge from complete nitrifying sludge | |
| CN113233597A (en) | Method for treating middle and late landfill leachate by endogenous denitrification combined with autotrophic nitrogen removal process | |
| CN110104769A (en) | A method of domestication starting high load capacity mainstream anaerobic ammonia oxidation reactor | |
| CN103224285A (en) | Rapid starting method of membrane bioreactor shortcut nitration technology | |
| CN105540840A (en) | Method for starting up whole-course autotrophic nitrogen removal filter column | |
| CN112250179B (en) | Device and method for realizing short-cut nitrification-anaerobic ammonia oxidation denitrification in sewage treatment continuous flow process through sludge fermentation product | |
| CN113023869A (en) | Process for treating high-concentration nitrate wastewater and domestic sewage by using sludge fermentation liquor as carbon source and by using short-range denitrification tandem anaerobic ammonia oxidation | |
| CN115043485B (en) | Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification | |
| CN101830569A (en) | Method for quickly starting oxygen-poor ammonia oxidizing biofilter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140423 Termination date: 20150702 |
|
| EXPY | Termination of patent right or utility model |