CN101767872B - Methanation, denitrification and anammox coupling process based sewage treatment process - Google Patents
Methanation, denitrification and anammox coupling process based sewage treatment process Download PDFInfo
- Publication number
- CN101767872B CN101767872B CN2010100176072A CN201010017607A CN101767872B CN 101767872 B CN101767872 B CN 101767872B CN 2010100176072 A CN2010100176072 A CN 2010100176072A CN 201010017607 A CN201010017607 A CN 201010017607A CN 101767872 B CN101767872 B CN 101767872B
- Authority
- CN
- China
- Prior art keywords
- sewage
- denitrification
- sludge
- reactor
- anaerobic
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
Abstract
The invention provides a methanation, denitrification and anammox coupling process based sewage treatment process. The process is characterized by comprising the following steps: (1) inoculating granular sludge with denitrifying dephosphatation function in an air-lift anaerobic reactor to ensure that the sludge concentration in the reactor is between 5 and 10g/L; (2) pumping the sewage to be treated into the air-lift anaerobic reactor, wherein the sewage to be treated at least contains HCO3-, CO2, NH4+, SO42-, NO3- and PO43-; (3) carrying out air-lift stirring on the pumped sewage by using an internal circulating gas pump, depositing the sewage after the sewage performs an anaerobic reaction for 3 to 5 hours under an anaerobic condition that the temperature is of 32+/-1 DEG C; (4) discharging supernate out of the system after deposition; and (5) discharging 10 to 40 volume parts of sludge when the sludge volume is more than 30 percent of the reactor volume. The process realizes coupling of methanation, denitrification and anammox, and simultaneously realizes removal of COD, ammonia nitrogen and total nitrogen in the air-lift anaerobic reactor.
Description
Technical field
The invention belongs to environment protection, sewage treatment area.Be specifically related to a kind of biologic process for treating sewage based on methanation, Anammox and denitrification coupling process.
Background technology
Anaerobic ammonia oxidation process (ANaerobic AMMonium OXidation, be called for short ANAMMOX) be a kind of new bio denitrification process that Dutch Delft polytechnical university finds the earliest and names, this technology refers under anaerobic, with the nitrite is electron acceptor(EA), ammonia nitrogen is direct oxidation into the process that nitrogen is removed from water, its biochemical reaction equation is:
NH
4 ++1.32NO
2 -+H
+→1.02N
2+0.26NO
3 -+2H
2O
Not only do not need organism as electron donor in anaerobic ammonium oxidation process, organism can produce restraining effect to the Anammox effect on the contrary.Yet have 10% nitrate generation in the anaerobic ammonium oxidation process, this part nitrate can not be removed by the Anammox approach, has therefore limited the denitrification effect of this technology.
In the traditional biological denitrification dephosphorization system, there is the competition of denitrifying bacteria and polyP bacteria to carbon source, system can not satisfy the demand of nitrifier, denitrifying bacteria and polyP bacteria simultaneously, the not equal contradiction of sludge age that nitrifier and polyP bacteria are required, therefore, traditional biological carbon and phosphorous removal system often can not obtain denitrogenation preferably, phosphor-removing effect simultaneously.
The denitrification dephosphorization technology is meant that (Poly-P Accumulating Organisms PAO) can not have O to polyP bacteria
2Condition under utilize NO
3 -As the electron acceptor(EA) of inhaling phosphorus, the intravital poly-hydroxy fatty acid of PAO (Polyhydroxyalkanoates, when PHA) being not the traditional aerobic suction phosphorus of picture by O
2Oxidation removal, but as NO
3 -Denitrifying carbon source, rich phosphorus sludge is excluded out system with the form of excess sludge.But denitrification dephosphorization still comes with some shortcomings: (1) NH
4 +-N has only and all is oxidized to NO
3 --N could be removed by the denitrification dephosphorization approach, according to the A of denitrification phosphorus-collecting Design Theory
2Therefore NSBR technology denitrification effect just is restricted, and NH
4 +-N oxidation then needs a large amount of oxygen; (2) typical urban sewage TN/TP is about 6-12, and denitrification dephosphorization anoxic section phosphate absorption amount and nitrate consumption have certain proportionlity, therefore, even if NH
4 +-N is all oxidized, and the denitrification dephosphorization technology also can only be sloughed a part of nitrogen when removing phosphorus, and remaining nitrogen can not be removed by the denitrification dephosphorization approach.Therefore, be necessary to seek the solution route of this problem.
Methanation can adapt to NO with the denitrification coupling and through domestication
3 -The toxicity of-N also can reach the effect of preferable denitrogenation degradation of organic substances, and organism is consumed by producing methane, avoids the hypertrophy of heterotrophic bacterium to influence the growth of the effect of anaerobic ammonia oxidizing bacteria.
Summary of the invention
The object of the present invention is to provide a kind of sewage treatment process of under the organic carbon source condition, realizing Anammox, denitrification and methanation coupling, for the removal of pollutent in the sewage provides a kind of new way.
The objective of the invention is to be achieved through the following technical solutions: a kind of sewage treatment process based on methanation, denitrification and Anammox coupling process is characterized in that:
(1) in the gas stripping type anaerobic reactor, the granule sludge that inoculation has the denitrification dephosphorization function, making the sludge concentration in the reactor is 5～10g/L; Described granule sludge with denitrification dephosphorization function has following feature: nitrate reductase is positive, contain poly-phosphorus particle in the thalline again, can be the electron acceptor(EA) bacterial classification of denitrifying phosphorus uptake denitrogenation simultaneously with nitrate under anoxic condition, as Rhodopseudomonas (Pseudomonas spp), serratia (Serratia spp) and vibrios (Vibriospp); The seed sludge that the present invention uses can utilize NO under the anoxybiotic condition
3 -As the electron acceptor(EA) of inhaling phosphorus, at this moment, when the intravital PHA of PAO is not the traditional aerobic suction phosphorus of picture by O
2Oxidation removal, but as NO
3 -Denitrifying carbon source has realized the coupling of denitrogenation, dephosphorization process;
(2) pending sewage is pumped in the gas stripping type anaerobic reactor, contain HCO at least in the described pending sewage
3 -, CO
2, NH
4 +, SO
4 2-, NO
3 -, PO
4 3-, so that methanation, denitrification and the required matrix condition of Anammox reaction to be provided;
(3) utilize the internal recycle gas pump to carry out gas and propose stirring to pumping into sewage, reactor is undertaken by water inlet-reaction-precipitation-draining-spoil disposal (on demand) order, it in temperature reaction 3～5 hours under 32 ± 1 ℃ the oxygen free condition, realize the removal of organism and nitrogen, phosphorus, reaction finishes postprecipitation, realizes the separation of muddy water;
(4) the post precipitation supernatant liquor is discharged system;
(5) when sludge volume greater than reactor volume 30% the time, exclusive segment mud, generally blowdown mud 1 time is every other day got rid of mud at every turn and is not more than 10～40%.
The granule sludge that has the denitrification dephosphorization function described in the above-mentioned steps (1) can obtain through artificial culture, and culturing process is:
With the second pond sludge discharged of urban wastewater treatment firm as seed sludge, through the cultivation in following two stages:
(A) take the aerobic/anaerobic mode to move, purpose is the enrichment polyP bacteria, eliminate other Pseudomonas: in the sbr reactor device, add seed sludge and according to COD: ammonia nitrogen: total phosphorus=120～150: 3～10: the synthetic sewage of 1～3 ratio preparation, anaerobism stirs 1～4h, and aeration 2～4h staticly settles 0.5～2h after the aeration end then, draining then, water inlet move 2～4 cycles following every day in 28 ℃ ± 2 ℃ conditions of room temperature;
(B) adopt the anaerobic/anoxic mode to move, purpose is that enrichment utilizes the denitrification phosphorus-collecting bacterium of nitric nitrogen for electron acceptor(EA): anaerobism stirs 1～4h in the sbr reactor device, add then according to COD: ammonia nitrogen: nitrate: total phosphorus=120～150: 3～10: 15～40: the sewage of 1～3 ratio preparation, said nitrate is KNO
3, anoxia stirring 2～4h, anoxic staticly settles 0.5～2h after finishing, and draining then, water inlet move 2～4 cycles every day, detect phosphor-removing effect when the phase finishes weekly, reach more than 80% until dephosphorization efficiency by using;
By water inlet being exposed to the sun argon gas 30min and with anaerobism, anoxic condition in the strict controlling reactor of mode of sealing, the control sludge age is 25d in the whole culturing process, and sludge concentration MLSS is at 2～5g/L, and incubation time was generally 15～30 days.
In order to guarantee the oxygen free condition of anaerobic reaction, the argon gas that exposes to the sun before pumping into of the pending sewage in the step (2) is handled, and the oxygen in the draining-off sewage is to keep anaerobic environment.
For guaranteeing that institute's cultured microorganism growth, breeding need, adding in the pending sewage in the step (2) has suitable trace element as a supplement, and described trace element is iron, copper, manganese, molybdenum, zinc and/or cobalt salt.
Among the present invention, through complicated biochemical reaction process, processes such as mud process mud adaptation and transition phase, transitional period, stationary phase.The adaptation of mud and transition phase: water outlet NH
3-N instability presents bigger fluctuation and descends; With NH
3The removal effect difference of-N, NO
2 --N growing amount is fluctuation and descends; With NO
2 -The NO of-N correspondence
3 --N clearance reduces gradually, illustrates that nitrification weakens gradually; The TN removal takes the lead in, and then clearance is very low into negative value, does not remove substantially except that biology consumption; The COD clearance increases gradually.Transitional period: the NO of water outlet
3 --N and NO
2 --N sum is greater than the NO of water inlet
3 --N, NH
3The clearance of-N presents and falls the trend that afterwards rises earlier, and the COD clearance progressively improves.Stationary phase: NH
3-N removal amount and NO
2 --N growing amount begins to occur fluctuation and descends, and illustrates to have occurred anaerobic ammonia oxidizing bacteria in the reactor.Denitrification weakens gradually, and the Anammox effect strengthens gradually, has realized the coupling of Anammox and methane denitrification, shows NH
3-N, TN, NO
3 -The continual and steady removal of-N and COD.
Among the present invention, methanogen can reduce the influence of organism to anaerobic ammonia oxidizing bacteria in anaerobic environment.Yet NO
3 --N is inhibited to methanogen, and needing denitrifying bacteria is its detoxifcation.
Strengthen the denitrifying bacteria activity and also strengthened the methanogen activity, do not influence the denitrifying bacteria activity and strengthen the methanogen activity; Methanation can adapt to NO with the denitrification coupling and through domestication
3 -The toxicity of-N also can reach the effect of preferable denitrogenation degradation of organic substances.Produce methane, NH by sludge digestion
4 +-N partial oxidation is to NO
2 --N is then with NH
4 +-N is the electron donor Anammox, can realize methanation and Anammox.
Promptly adopt NO
3 --N part denitrification is to NO
2 --N is then with NH
4 +-N is the electron donor Anammox, utilizes methanobacteria to produce the methane degradation of organic substances and act as Anammox releasing inhibition, thereby realize the coupling of methanation, denitrification and Anammox.
Beneficial effect of the present invention is:
1, the present invention realizes methanation, denitrification and Anammox coupling, realizes the removal of COD, ammonia nitrogen, total nitrogen in the gas stripping type anaerobic reactor simultaneously;
2, the inventive method operation steps is simple, for NH
3-N, TN, NO
3 --N and COD can remove continually and steadily, its NH
3-N, TN, NO
3 -The clearance of-N and COD can reach 40～65% (average 45%), 58～79% (average 69%), 86～99% (average 94%) and 76～87% (average 81%) respectively.
Description of drawings
Fig. 1 is the structural representation of reaction unit of the present invention.
Among the figure: 1, water-sealed drainage bottle; 2, air bag; 3, inlet chest; 4, water inlet peristaltic pump; 5, gas meter; 6, internal recycle air pump; 7, gas buffer bottle; 8, temperature control unit; 9, water outlet peristaltic pump; 10, thief hole; 11, outlet valve; 12, go out water collection tank; 13, aeration head.
Embodiment
Mode below by embodiment is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1
As shown in Figure 1, use the gas stripping type anaerobic reactor among the present invention, its housing is made by synthetic glass, urceolus Φ 5.2 * 88 (diameter * long cm), and the reactor cubic capacity is 8.1L, useful volume is 6.4L.Built-in aeration head 13 utilizes internal recycle air pump 6 to carry out gas and proposes stirring; Temperature of reactor adopts real-time online control, and water temperature is 32 ± 1 ℃.To avoid illumination to be incubated simultaneously, peristaltic pump 4 is introduced reactor with the synthetic wastewaters in the inlet chest 3 from the top low discharge to reactor with black cloth parcel, and water outlet is discharged with peristaltic pump 9, and the synthetic sewage argon gas 30min that exposes to the sun before water inlet is to get rid of the oxygen in the water inlet.Adopt the mode of peristaltic pump 4 water inlets, can avoid the interior dissolved oxygen of reactor can not increase suddenly and change excessive with reactor temperature.Adopt peristaltic pump 9 timing drainages by opening outlet valve 11, during draining, gas is inhaled into reactor in the air bag 2, guarantees the stable of reactor internal gas pressure, has prevented entering of outside air.Water shoot will be tried one's best near the bucket end that goes out water collection tank 13, can utilize drainage water as water seal 1 like this, prevented that air from entering inside reactor from water shoot.
A production well is arranged at reactor top, and production well links to each other with tracheae, is connecting an air bag 2 on the tracheae and (is filling CO to it discontinuously
2, guarantee that buffer air bag has gas always, for anaerobic ammonia oxidizing bacteria provides carbon source and the dissolved oxygen of getting rid of in the reactor), to guarantee the smooth and easy of Inlet and outlet water and to collect aerogenesis.Tail end links to each other with the water seal of making of vial, guarantees that gas overflows and completely cuts off external air, gas dosing employing gas meter 5.
A kind of biologic process for treating sewage based on methanation, denitrification and Anammox reaction coupling process, concrete steps are as follows:
(1) in the gas stripping type anaerobic reactor, drops into the granule sludge with denitrification dephosphorization function, sludge concentration 5-10g/L in the anaerobic reactor;
(2) pending sewage is pumped into reactor, after reactor successfully starts, realized Anammox, denitrification and methanation coupling, contain HCO at least in the said pending sewage
3 -, CO
2, NH
4 +, SO
4 2-, NO
3 -, PO
4 3-, its water quality is: COD 1000～1600mg/L, ammonia nitrogen 160～250mg/L, nitric nitrogen 160～350mg/L, phosphoric acid salt 20～250mg/L;
(3) utilizing the internal recycle gas pump to carry out gas and propose stirring pumping into sewage, is 3～5 hours postprecipitations of anaerobic reaction under 32 ± 1 ℃ the oxygen free condition in temperature;
(4) the post precipitation supernatant liquor is discharged system;
(5) when sludge volume greater than reactor volume 30% the time, discharge the mud of 10～40% parts by volume.
Result shows NH
3-N, TN, NO
3 -The continual and steady removal of-N and COD, its NH
3-N, TN, NO
3 -The clearance of-N and COD can reach 40～65% (average 45%), 58～79% (average 69%), 86～99% (average 94%) and 76～87% (average 81%) respectively.
The present invention adopts the gas stripping type reactor, thereby, can effectively hold and stay methanation, denitrification and Anammox thalline, stirring especially can steady in a long-termly move and help anaerobic grain sludge at the big reactor of aspect ratio forms the appropriate incubation anaerobic ammonia oxidizing bacteria.The granule sludge of inoculating in the reactor changes brown yellow granule mud gradually between the continuous operating period of 5 wheat harvesting periods, detect through PCR to have anaerobic ammoxidation activity.
Embodiment 2
Seed sludge and reactions steps are with embodiment 1 in the present embodiment, difference is: the sewage that pumps into reactor is simulated domestic wastewater water quality, and concrete water quality is: COD 120-150mg/L, ammonia nitrogen 40-80mg/L, nitric nitrogen 5-20mg/L, phosphoric acid salt 3-10mg/L.Methanation, denitrification and Anammox reaction coupling post-reactor 18d, water outlet NH
4 +-N can be stabilized in 5-15mg/L; Water outlet NO
2 --N 0-1mg/L, water outlet NO
3 --N is about 2-5mg/L, and the water outlet total nitrogen drops to about 6-18mg/L, and water outlet phosphoric acid salt 0.1-0.3mg/L reaches the requirement of TN among " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) primary standard B, i.e. 20mg/L.Find DPB accumulation NO among the embodiment
2 -, these NO
2 -Utilized by anaerobic ammonia oxidizing bacteria, the dissolved oxygen of carrying secretly in the DPB denitrification consumption water inlet, for anaerobic ammonia oxidizing bacteria is eliminated oxygen, and then creating conditions for the Anammox reaction, DPB provides inorganic carbon source carbonic acid gas for anaerobic ammonia oxidizing bacteria simultaneously, in reactive system, and VFA in the water inlet of polyP bacteria energy rapid absorption, can effectively suppress other heterotrophic bacterium growths, also provide good environment for the Anammox bacteria growing.
Claims (3)
1. sewage treatment process based on methanation, denitrification and Anammox coupling process is characterized in that:
(1) in the gas stripping type anaerobic reactor, the granule sludge that inoculation has the denitrification dephosphorization function, making the sludge concentration in the reactor is 5～10g/L;
Described culturing process with granule sludge of denitrification dephosphorization function is:
With the second pond sludge discharged of urban wastewater treatment firm as seed sludge, through the cultivation in following two stages:
(A) take the aerobic/anaerobic mode to move, purpose is the enrichment polyP bacteria, eliminate other Pseudomonas: in the sbr reactor device, add seed sludge and according to COD: ammonia nitrogen: total phosphorus=120～150: 3～10: the synthetic sewage of 1～3 ratio preparation, anaerobism stirs 1～4h, and aeration 2～4h staticly settles 0.5～2h after the aeration end then, draining then, water inlet move 2～4 cycles following every day in 28 ℃ ± 2 ℃ conditions of room temperature;
(B) adopt the anaerobic/anoxic mode to move, purpose is that enrichment utilizes the denitrification phosphorus-collecting bacterium of nitric nitrogen for electron acceptor(EA): anaerobism stirs 1～4h in the sbr reactor device, add then according to COD: ammonia nitrogen: nitrate: total phosphorus=120～150: 3～10: 15～40: the sewage of 1～3 ratio preparation, anoxia stirring 2～4h, anoxic staticly settles 0.5～2 after finishing
H, draining then, water inlet move 2～4 cycles every day, detect phosphor-removing effect when the phase finishes weekly, reach more than 80% until dephosphorization efficiency by using;
The control sludge age is 25d in the whole culturing process, and sludge concentration MLSS is at 2～5g/L, and incubation time is 15～30 days;
(2) pending sewage is pumped in the gas stripping type anaerobic reactor, contain HCO at least in the described pending sewage
3 -, CO
2, NH
4 +, SO
4 2-, NO
3 -, PO
4 3-
(3) utilizing the internal recycle gas pump to carry out gas and propose stirring pumping into sewage, is 3～5 hours postprecipitations of anaerobic reaction under 32 ± 1 ℃ the oxygen free condition in temperature;
(4) the post precipitation supernatant liquor is discharged system;
(5) when sludge volume greater than reactor volume 30% the time, discharge the mud of 10～40% parts by volume.
2. the sewage treatment process based on methanation, denitrification and Anammox coupling process according to claim 1 is characterized in that: the argon gas that exposes to the sun before pumping into of the pending sewage in the step (2) is handled.
3. the sewage treatment process based on methanation, denitrification and Anammox coupling process according to claim 1 and 2, it is characterized in that: add in the pending sewage in the step (2) that trace element, described trace element are arranged is iron, copper, manganese, molybdenum, zinc and/or cobalt salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100176072A CN101767872B (en) | 2010-01-08 | 2010-01-08 | Methanation, denitrification and anammox coupling process based sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100176072A CN101767872B (en) | 2010-01-08 | 2010-01-08 | Methanation, denitrification and anammox coupling process based sewage treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101767872A CN101767872A (en) | 2010-07-07 |
| CN101767872B true CN101767872B (en) | 2011-09-07 |
Family
ID=42501000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100176072A Expired - Fee Related CN101767872B (en) | 2010-01-08 | 2010-01-08 | Methanation, denitrification and anammox coupling process based sewage treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101767872B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092851A (en) * | 2011-01-04 | 2011-06-15 | 武汉理工大学 | Method for removing carbon, nitrogen and phosphorus in sewage cooperatively |
| CN102389707B (en) * | 2011-11-01 | 2014-02-19 | 浙江大学 | Automatic control-based paddle drop-type gas-holding internal-cycle denitrification anaerobic methane oxidation reactor |
| CN103121752B (en) * | 2013-01-05 | 2014-01-01 | 北京工业大学 | Method for processing urban sewage nitrifying liquid by sludge fermentation and denitrification coupled with anaerobic ammonia oxidation |
| CN105366804B (en) * | 2015-11-13 | 2018-03-02 | 天津大学 | The medicament of nitrite accumulation during a kind of promotion biological denitrification |
| CN108559707A (en) * | 2018-02-07 | 2018-09-21 | 中国科学技术大学 | A kind of enrichment method of denitrification microorganism |
| CN109809558B (en) * | 2019-03-19 | 2021-08-17 | 东北大学 | Composite denitrification reactor based on sulfur-based filler and denitrification treatment process |
| CN110950435A (en) * | 2019-12-12 | 2020-04-03 | 海湾环境科技（北京）股份有限公司 | Wastewater treatment system and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058463A (en) * | 2007-04-12 | 2007-10-24 | 重庆大学 | Waste water biological treatment method for realizing anaerobic ammoxidation and methanation denitrification coupling |
| CN101531443A (en) * | 2009-04-10 | 2009-09-16 | 华东师范大学 | Coupling type sewage treatment process |
-
2010
- 2010-01-08 CN CN2010100176072A patent/CN101767872B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058463A (en) * | 2007-04-12 | 2007-10-24 | 重庆大学 | Waste water biological treatment method for realizing anaerobic ammoxidation and methanation denitrification coupling |
| CN101531443A (en) * | 2009-04-10 | 2009-09-16 | 华东师范大学 | Coupling type sewage treatment process |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2007-21365A 2007.02.01 |
| 操家顺等.厌氧氨氧化、反硝化与甲烷化耦合研究.《南京理工大学学报(自然科学版)》.2009,第33卷(第4期),第538-542，547页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101767872A (en) | 2010-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107032506B (en) | Device and method for treating domestic sewage through sectional effluent shortcut nitrification-Anammox/denitrification | |
| CN101767872B (en) | Methanation, denitrification and anammox coupling process based sewage treatment process | |
| CN101628772B (en) | Short distance denitrifying dephosphatation double-sludge technique taking granular sludge as medium and device thereof | |
| CN101439915B (en) | Membrane aeration biomembrane process and apparatus for sewerage short-cut denitrification | |
| CN110526528A (en) | Integral type short-cut denitrification Anammox water process quick start method and system | |
| CN108439599B (en) | Device and method for deep nitrogen and phosphorus removal by coupling endogenous short-cut denitrification with ANAMMOX of municipal domestic sewage | |
| CN113415910B (en) | Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process | |
| CN109970200B (en) | Device and method for treating urban domestic sewage based on coupling of short-cut denitrification dephosphorization and anaerobic ammonia oxidation | |
| CN109574218B (en) | Device and method for treating late landfill leachate through shortcut nitrification-fermentation/denitrification-anaerobic ammonia oxidation process | |
| CN110002591B (en) | Device and method for realizing shortcut nitrification-denitrification dephosphorization coupling of municipal domestic sewage under anoxic/aerobic alternate condition | |
| CN103121754A (en) | Denitrification and dephosphorization technique | |
| CN109264864A (en) | A kind of " main-auxiliary " activated sludge process coupling deodorization and intensified denitrification and dephosphorization | |
| CN113233592B (en) | Treatment device and method for realizing synchronous deep denitrification and decarbonization of advanced landfill leachate and domestic sewage | |
| CN112250183A (en) | Device and method for treating urban sewage by combining whole-course nitrification with sludge fermentation and coupling short-range denitrification anaerobic ammonia oxidation | |
| CN112607858A (en) | Deamination method and system for coupling sulfur autotrophic short-cut denitrification with anaerobic ammonia oxidation | |
| CN114772724B (en) | Technology for strengthening carbon capture of municipal sewage by combining sludge fermentation with PN/A technology | |
| CN115959771A (en) | Device and method for recycling carbon source of urban sewage by enhanced autotrophic/heterotrophic coupling deep denitrification | |
| CN214880538U (en) | Device for rapidly culturing aerobic granular sludge and treating low-carbon-ratio urban sewage | |
| CN110054284A (en) | The semi-hitrosation technique of municipal sewage treatment starts and control method | |
| CN112250179B (en) | Device and method for realizing short-cut nitrification-anaerobic ammonia oxidation denitrification in sewage treatment continuous flow process through sludge fermentation product | |
| CN105366889A (en) | High-standard urban sewage nitrogen and phosphorus removal system without external carbon sources | |
| CN103241916B (en) | Method for realizing maximal accumulation of nitrite in sludge fermentation coupling denitrification process | |
| CN103172227B (en) | A kind of method of high-efficiency aerobic biological phosphate-eliminating | |
| CN105110561A (en) | Method for treating high ammonia-nitrogen wastewater under low dissolved oxygen condition | |
| CN211896290U (en) | Sewage treatment device system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20160108 |