CN114477627A - Method for promoting adherent growth of anaerobic ammonium oxidation sludge - Google Patents
Method for promoting adherent growth of anaerobic ammonium oxidation sludge Download PDFInfo
- Publication number
- CN114477627A CN114477627A CN202210006257.2A CN202210006257A CN114477627A CN 114477627 A CN114477627 A CN 114477627A CN 202210006257 A CN202210006257 A CN 202210006257A CN 114477627 A CN114477627 A CN 114477627A
- Authority
- CN
- China
- Prior art keywords
- anammox
- egsb
- temperature
- sludge
- adherent growth
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000003647 oxidation Effects 0.000 title claims abstract description 29
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 29
- 230000001464 adherent effect Effects 0.000 title claims abstract description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title claims abstract description 14
- 230000001737 promoting effect Effects 0.000 title claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 230000001174 ascending effect Effects 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 32
- 230000008569 process Effects 0.000 abstract description 18
- 229910021529 ammonia Inorganic materials 0.000 abstract description 16
- 241000894006 Bacteria Species 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 abstract description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000000638 stimulation Effects 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- 230000032770 biofilm formation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
A method for promoting the adherent growth of anaerobic ammonium oxidation sludge relates to an adherent growth method of anaerobic ammonium oxidation granular sludge. The method comprises the following steps: reducing the operating temperature of the Anammox-EGSB which normally operates to 20 +/-1 ℃, and operating at constant temperature for more than or equal to 10 days; then the operation temperature is reduced to 12 +/-1 ℃, and the operation is carried out for more than or equal to 10 days at constant temperature; and then the operation temperature is increased to the operation temperature of the Anammox-EGSB which normally operates, and the adherent growth of the anaerobic ammonia oxidation sludge is completed when the total nitrogen removal effect of the effluent is recovered to be normal. The method of the invention does not need to add other chemical reagents, can effectively solve the problem that the anaerobic ammonium oxidation bacteria are difficult to form membranes only through low-temperature stimulation, and maintains the long-term high-efficiency stability of a denitrification system. The method has the advantages of quick film forming time, stable and efficient treatment effect, capability of finishing the whole process within one month, strong hydraulic shearing force resistance of the formed film system and ammonia nitrogen and nitrite removal rate of more than 95 percent.
Description
Technical Field
The invention relates to an adherent growth method of anaerobic ammonia oxidation granular sludge.
Background
The control of the discharge amount of nitrogen and phosphorus in the sewage is an effective means for controlling the eutrophication of the water body. The long-history nitrification-denitrification biological nitrogen removal system has a plurality of problems, such as long flow, low nitrogen removal efficiency, high capital investment, high oxygen supply energy consumption, and the need of additionally adding an organic carbon source, and is not more and more consistent with the development trend of energy conservation and emission reduction in the new century. The novel biological denitrification technology develops rapidly. Wherein, the anaerobic ammonia oxidation (Anammox) process is a biological denitrification process which takes nitrite nitrogen as an electron acceptor and oxidizes ammonia to generate nitrogen and a small amount of nitrate under anaerobic condition. The Anammox technology is more and more favored by the market due to the advantages of high denitrification efficiency, 60% aeration saving, no need of organic carbon source, low sludge yield and low cost.
However, the Anammox technology also has a plurality of application problems to be solved. The first problem is that the growth speed of Anammox bacteria is slow, and the doubling time is as long as 2 weeks. The starting time of the first Anammox biological denitrification engineering case in the world is as long as 3.5 years. Therefore, in the anaerobic ammonia oxidation sludge culture process, the low retention capacity can cause the sludge to be too old to successfully enrich Anammox bacteria. In actual culture, through letting Anammox fungus self-aggregation form granular sludge or form the biomembrane, not only can reduce the loss condition of mud, can also increase sludge concentration, improve denitrogenation efficiency, increase the space diversity of sewage and the variety of sewage treatment efficiency ability. However, proper hydraulic and nutritional conditions are required for granular sludge culture, and the biofilm formation process in the biofilm process is slow. The traditional rapid sludge discharge and film hanging method has too long starting time for anaerobic ammonium oxidation bacteria which grow too slowly. At present, anaerobic ammonia oxidation hanging films based on different fillers have the defects of poor effect, instability, easy shedding and the like.
Disclosure of Invention
The invention provides a method for promoting the adherent growth of anaerobic ammonium oxidation sludge, aiming at the defects of poor effect, instability and easy shedding in the Anammox sludge film forming process.
The method for promoting the adherent growth of the anaerobic ammonium oxidation sludge comprises the following steps:
reducing the operating temperature of the Anammox-EGSB which normally operates to 20 +/-1 ℃, and operating at constant temperature for more than or equal to 10 days; then the operation temperature is reduced to 12 +/-1 ℃, and the operation is carried out for more than or equal to 10 days at constant temperature; and then the operation temperature is increased to the operation temperature of the Anammox-EGSB which normally operates, and the adherent growth of the anaerobic ammonia oxidation sludge is completed when the total nitrogen removal effect of the effluent is recovered to be normal.
Extracellular Polymer (EPS) of bacteria generally exists in the sludge and on the surface of the sludge, is a colloidal polymer composed of organic polymers such as polysaccharide, protein and the like, has important physiological functions such as protection, adsorption, carbon source, coagulation and the like, is one of key factors for adhering microorganisms to other surface media, and has important function on the biofilm formation rate of the microorganisms due to the content and type of the EPS. The method of the invention utilizes low temperature to stimulate the anaerobic ammonia oxidation sludge to generate the secretion of extracellular polymers of bacteria, enhances the attachment capacity of the sludge, promotes the adherent growth of the anaerobic ammonia oxidation sludge, and solves the problems of poor retention capacity of flocculent Anammox sludge and slow loss of flocculent anaerobic ammonia oxidation process sludge.
The method can promote the anaerobic ammonium oxidation sludge to form a large-sheet stable biological film structure with strong hydraulic shearing force resistance on the inner wall (and the surface of the filler) of the reactor, thereby realizing the rapid anaerobic ammonium oxidation sludge film formation and the stable and efficient denitrification efficiency of the reactor. The filler for forming the biological film also lays a foundation for the quick start of the new anaerobic ammonia oxidation reactor.
The method of the invention does not need to add other chemical reagents, can effectively solve the problem that the anaerobic ammonium oxidation bacteria are difficult to form membranes only through low-temperature stimulation, and maintains the long-term high-efficiency stability of a denitrification system. The method has the advantages of quick film forming time and capability of completing the whole process within one month. The method has stable and efficient treatment effect, the formed membrane system can resist the impact of hydraulic shearing force with the ascending flow speed of 10m/h without being broken, the removal rate of ammonia nitrogen and nitrite reaches more than 95 percent, and the total nitrogen removal load reaches 2kgN/m3/d。
Drawings
FIG. 1 is a graph showing the observation of sludge in Anammox-EGSB which had been normally operated in example 1;
FIG. 2 is a graph of Anammox adherent film-like growth after the cooling run in example 1;
FIG. 3 is an observation view of a block structure of about 1cm formed by partial shedding of organisms after the operation temperature is restored to 30-35 ℃ in example 1;
FIG. 4 is a graph showing the trend of EPS, an extracellular secretion, of anammox sludge, during the operation of example 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The first embodiment is as follows: the method for promoting the adherent growth of the anaerobic ammonium oxidation sludge in the embodiment comprises the following steps:
reducing the operating temperature of the Anammox-EGSB which normally operates to 20 +/-1 ℃, and operating at constant temperature for more than or equal to 10 days; then the operation temperature is reduced to 12 +/-1 ℃, and the operation is carried out for more than or equal to 10 days at constant temperature; and then the operation temperature is increased to the operation temperature of the Anammox-EGSB which normally operates, and the adherent growth of the anaerobic ammonia oxidation sludge is completed when the total nitrogen removal effect of the effluent is recovered to be normal.
The constant temperature water tank is connected with the water bath layer through cold water or hot water circulation to control the Anammox-EGSB to run at constant temperature.
In this embodiment, the pH of the Anammox-EGSB influent is controlled with 0.1M hydrochloric acid.
In the operation process of the embodiment, nitrogen aeration is carried out so as to remove oxygen and create an oxygen-free environment.
Except the operating temperature of the Anammox-EGSB in the implementation process of the method, other processes and parameters are the same as those of the Anammox-EGSB in normal operation.
Effluent standard of Anammox-EGSB in Normal operation: chemical dosage ratio delta NO in effluent2 --N/ΔNH4 +-N and Δ NO3 --N/ΔNH4 +N approaches (or reaches) 1.32 and 0.26, respectively.
The effluent total nitrogen removal effect is recovered to be normal: the removal effect of the total nitrogen in the effluent reaches the effluent standard of the Anammox-EGSB which normally operates again.
In the method, serious reduction of denitrification efficiency can be observed in the cooling operation process, partial sludge can be decomposed, and the operation conditions such as the concentration of the influent substrate, the nitrogen load of the influent, the pH value, the ascending flow rate and the like are still kept unchanged; in the cooling operation process, the anaerobic ammonia oxidation sludge can be observed to carry out attached growth by taking the inner wall of the EGSB reactor as the surface of a carrier medium, so as to form a thick and large adherent growth state. After the operation temperature is recovered to 30-35 ℃, the Anammox biomembrane on the inner wall of the reactor can keep stable growth under the condition of no external interference; after part of organisms fall off, a blocky structure similar to about 1cm is formed, and the sludge retention capacity is good.
The second embodiment is as follows: the present embodiment is different from the first embodiment in that: the operating temperature of the Anammox-EGSB which normally operates is 30-35 ℃. Other parameters are the same as those in the first embodiment.
The third concrete implementation mode: the present embodiment is different from the first or second embodiment in that: NH in Anammox-EGSB feed water4 +-N and NO2 -The molar ratio of-N is 1: 1.15. Other parameters are the same as in the first or second embodiment.
The fourth concrete implementation mode: the present embodiment is different from the first, second, and third embodiments in that: NH in Anammox-EGSB feed water4 +The concentration of-N was 14 mmol/L. Other parameters are the same as in the first or second or third embodiment.
The fifth concrete implementation mode: the present embodiment is different from one of the first to fourth embodiments in that: biofilm carriers (fillers) were added to the Anammox-EGSB before the operating temperature was reduced to 20 ± 1 ℃. Other parameters are the same as those in one of the first to fourth embodiments.
In the embodiment, a large amount of Anamox biological membranes are attached to the surface of the biological membrane carrier, and the carrier is successfully hung on the membrane.
The sixth specific implementation mode: the present embodiment is different from one of the first to fifth embodiments in that: reducing the operating temperature of the Anammox-EGSB which normally operates to 20 ℃, and operating at constant temperature for 10-14 days; then the operation temperature is reduced to 12 ℃, and the operation is carried out for 10-14 days at constant temperature. Other parameters are the same as those in one of the first to fifth embodiments.
The seventh embodiment: the present embodiment is different from one of the first to sixth embodiments in that: the pH value of influent water of the Anammox-EGSB is regulated to 7-8, and the rising flow rate is 16 +/-0.5 m/h. Other parameters are the same as those in one of the first to sixth embodiments.
Example 1
The EGSB used in this example was 70cm high, 6cm internal diameter, 12cm external diameter, 3.14 liters in volume, and 1.7 liters in effective volume; the outer layer of the effective volume reactor is provided with a water bath layer with the thickness of two centimeters, the water of the circulating water bath is connected with a water bath water inlet below the EGSB from the low-temperature constant-temperature water tank, and the water of the circulating water bath flows back to the low-temperature constant-temperature water tank from the upper part. A three-phase separator is arranged above the inside of the EGSB reactor and used for discharging nitrogen, and water in the water distribution tank enters the reactor from a water inlet below the EGSB and flows into and out of the EGSB from a water outlet above the EGSB.
The operation method comprises the following steps:
reducing the operating temperature of the Anammox-EGSB which normally operates from 30 ℃ to 20 ℃, and operating at the constant temperature of 20 ℃ for 11 days; then the operation temperature is reduced to 12 ℃, and the operation is carried out for 11 days at the constant temperature of 12 ℃; then the operation temperature is raised to 35 ℃, and when the total nitrogen removal effect of the effluent is recovered to be normal, the adherent growth of the anaerobic ammonia oxidation sludge is completed;
the pH value of the inflow water of the Anammox-EGSB is regulated and controlled by 0.1M hydrochloric acid, and the pH value of the inflow water of the Anammox-EGSB is regulated and controlled to be 7-8The flow rate is 16 m/h; the concentration of ammonia nitrogen in the inlet water is 14mmol/L, and NH in the inlet water4 +-N and NO2 --a molar ratio of N of 1: 1.15; during the operation, nitrogen aeration is carried out to remove oxygen so as to create an oxygen-free environment.
In the practical operation process of the embodiment, except for the operation temperature of the Anammox-EGSB, other processes and parameters are the same as those of the Anammox-EGSB in normal operation.
In this example the EPS was collected by thermal extraction.
The sludge in the Anammox-EGSB which has normally operated is flocculent and granular anaerobic ammonia oxidation sludge (shown in figure 1). The total nitrogen removal load is 2kgN/m3D, the total nitrogen removal rate is 86, which is close to the theoretical ratio of 88%; the ammonia nitrogen removal rate is 92 percent, the nitrite nitrogen removal rate is 98 percent, and the chemical dose ratio delta NO in the effluent is2 --N/ΔNH4 +-N and Δ NO3 --N/ΔNH4 +N is 1.27 and 0.15, respectively, close to the theoretical ratios 1.32 and 0.26.
In the method, serious reduction of denitrification efficiency and disintegration of partial sludge can be observed in the cooling operation process, and the operation conditions such as the concentration of a feed water substrate, the feed water nitrogen load, the pH value, the rising flow rate and the like are still kept unchanged; in the cooling operation process, the anaerobic ammonia oxidation sludge can be observed to grow on the surface of a carrier medium on the inner wall of the EGSB reactor, and a thick and large adherent growth state is formed (as shown in figure 2). After the operation temperature is recovered to 35 ℃, the Anammox biomembrane on the inner wall of the reactor can keep stable growth under the condition of no external interference; after part of the organisms fall off, a blocky structure similar to about 1cm is formed, and the sludge retention capacity is still good (as shown in figure 3).
The operation temperature is reduced to 20 ℃, the granular sludge is disintegrated, and the total nitrogen removal load is reduced to 1.4kgN/m3D, total nitrogen removal 70%; the ammonia nitrogen concentration of the effluent running at the constant temperature of 20 ℃ is higher. Chemical dosage ratio delta NO in effluent2 --N/ΔNH4 +-N and Δ NO3 --N/ΔNH4 +N is 1.2 and 0 respectivelyAbout 004. As the sludge is disintegrated to release organic matters in cells, the denitrification rate is increased, the content of nitrate in the effluent is low, the EPS content is reduced, and the ratio of protein to polysaccharide is increased (as shown in figure 4).
The operation temperature is reduced to 12 ℃, the total nitrogen removal load is reduced to 0.5, and the total nitrogen removal load is reduced to 0.17kgN/m3The total nitrogen removal was only around 8%. More granular sludge is decomposed, the denitrification rate is extremely high, and the nitrate ratio even becomes a negative value. At the same time, a large amount of EPS is secreted, and a large amount of disintegrated particles and flocculent sludge are attached to the surface of the medium to form film-shaped growth (as shown in FIG. 4).
After the operation temperature is recovered to 35 ℃, the denitrification efficiency of the reactor is rapidly recovered, and finally the total nitrogen removal load is recovered to the original level, and the biofilm culturing is successful.
The operation treatment effect of the embodiment is stable and efficient, the formed membrane system can resist the hydraulic shearing force of the ascending flow velocity of 10m/h without being broken, the removal rate of ammonia nitrogen and nitrite reaches more than 95 percent, and the total nitrogen removal load reaches 2kgN/m3/d。
Claims (6)
1. A method for promoting the adherent growth of anaerobic ammonium oxidation sludge is characterized by comprising the following steps:
reducing the operating temperature of the Anammox-EGSB which normally operates to 20 +/-1 ℃, and operating at constant temperature for more than or equal to 10 days; then the operation temperature is reduced to 12 +/-1 ℃, and the operation is carried out for more than or equal to 10 days at constant temperature; and then the operation temperature is increased to the normal operation temperature of the Anammox-EGSB, and the adherent growth of the anaerobic ammonium oxidation sludge is completed when the total nitrogen removal effect of the effluent is recovered to be normal.
2. The method for promoting the adherent growth of the Anammox sludge according to claim 1, wherein the operating temperature of the Anammox-EGSB which has been normally operated is 30-35 ℃.
3. The method for promoting the adherent growth of the Anammox sludge according to claim 1, wherein the pH value of influent water of the Anammox-EGSB is controlled to be 7-8, and the ascending flow rate is 16 +/-0.5 m/h.
4. The method for promoting adherent growth of Anammox sludge according to claim 1, wherein NH is in the feed water of Anammox-EGSB4 +-N and NO2 -The molar ratio of-N is 1: 1.15.
5. The method for promoting adherent growth of Anammox sludge according to claim 1 or 4, wherein NH is added to the influent Anammox-EGSB4 +The concentration of-N was 14 mmol/L.
6. The method for promoting the adherent growth of the Anammox sludge according to claim 1, wherein the biofilm carrier is added to the Anammox-EGSB before the operation temperature is reduced to 20 ± 1 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210006257.2A CN114477627A (en) | 2022-01-05 | 2022-01-05 | Method for promoting adherent growth of anaerobic ammonium oxidation sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210006257.2A CN114477627A (en) | 2022-01-05 | 2022-01-05 | Method for promoting adherent growth of anaerobic ammonium oxidation sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114477627A true CN114477627A (en) | 2022-05-13 |
Family
ID=81509554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210006257.2A Pending CN114477627A (en) | 2022-01-05 | 2022-01-05 | Method for promoting adherent growth of anaerobic ammonium oxidation sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114477627A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701445A (en) * | 2012-07-02 | 2012-10-03 | 哈尔滨工业大学 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
| EP3255016A1 (en) * | 2016-06-10 | 2017-12-13 | FCC Aqualia, S.A. | Method for starting up and controlling a biological process for ammonium removal at low ammonium concentrations and low temperature through the use of a two stage autotrophic nitrogen removal process |
| CN110104769A (en) * | 2019-04-22 | 2019-08-09 | 杭州师范大学 | A method of domestication starting high load capacity mainstream anaerobic ammonia oxidation reactor |
| CN111675322A (en) * | 2020-06-22 | 2020-09-18 | 北京城市排水集团有限责任公司 | Method for quickly obtaining high-concentration anaerobic ammonia oxidation granular sludge and anaerobic ammonia oxidation granular sludge |
| US20200354247A1 (en) * | 2018-12-10 | 2020-11-12 | Beijing Drainage Group Co ., Ltd | Anaerobic ammoxidation synergistic nitrogen removal process device of municipal sewage main and side streams and application method thereof |
| WO2021120349A1 (en) * | 2019-12-17 | 2021-06-24 | 南京大学 | Application of mannitol as additive in mitigating impact of salinity on anammox reactor |
| CN113860493A (en) * | 2021-11-22 | 2021-12-31 | 北京工业大学 | Method for promoting starting process of anaerobic ammonia oxidation process at low temperature |
-
2022
- 2022-01-05 CN CN202210006257.2A patent/CN114477627A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701445A (en) * | 2012-07-02 | 2012-10-03 | 哈尔滨工业大学 | Normal-temperature starting domestication method for anaerobic ammoxidation reactor with low-dissolved-oxygen inflow water |
| EP3255016A1 (en) * | 2016-06-10 | 2017-12-13 | FCC Aqualia, S.A. | Method for starting up and controlling a biological process for ammonium removal at low ammonium concentrations and low temperature through the use of a two stage autotrophic nitrogen removal process |
| US20200354247A1 (en) * | 2018-12-10 | 2020-11-12 | Beijing Drainage Group Co ., Ltd | Anaerobic ammoxidation synergistic nitrogen removal process device of municipal sewage main and side streams and application method thereof |
| CN110104769A (en) * | 2019-04-22 | 2019-08-09 | 杭州师范大学 | A method of domestication starting high load capacity mainstream anaerobic ammonia oxidation reactor |
| WO2021120349A1 (en) * | 2019-12-17 | 2021-06-24 | 南京大学 | Application of mannitol as additive in mitigating impact of salinity on anammox reactor |
| CN111675322A (en) * | 2020-06-22 | 2020-09-18 | 北京城市排水集团有限责任公司 | Method for quickly obtaining high-concentration anaerobic ammonia oxidation granular sludge and anaerobic ammonia oxidation granular sludge |
| CN113860493A (en) * | 2021-11-22 | 2021-12-31 | 北京工业大学 | Method for promoting starting process of anaerobic ammonia oxidation process at low temperature |
Non-Patent Citations (2)
| Title |
|---|
| 吕炳南等, 哈尔滨：哈尔滨工业大学出版社 * |
| 邵兆伟等: ""降温方式对厌氧氨氧化脱氮性能的影响"", 《环境工程学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110002592B (en) | Device and method for treating domestic sewage by coupling short-cut denitrification-sludge fermentation with anaerobic ammonia oxidation system | |
| CN101050026B (en) | Deepness denitrogenation method for treating organic wastewater in high concentration | |
| CN102964035B (en) | Device for autotrophic nitrogen removal of composite biological membrane and operation method | |
| CN107265639B (en) | Integrated split-phase combined wastewater denitrification device and wastewater denitrification method | |
| CN108217939B (en) | Starting method for treating high ammonia nitrogen wastewater by using anoxic-aerobic moving bed biofilm reaction system | |
| CN104944701B (en) | Based on intermission aeration strengthening sewage denitrification and dephosphorization and energy-saving method | |
| CN110228911B (en) | Multistage tandem type autotrophic-heterotrophic denitrification coupling nitrogen and phosphorus removal method and device | |
| CN110078303B (en) | Step feed A2Method and device for realizing shortcut nitrification/anaerobic ammonia oxidation in/O process | |
| CN101962222B (en) | Method for fast aerobic granulation of flocculent sludge in sequence batch reactor | |
| CN113060830B (en) | Method for accelerating aerobic sludge granulation by using tourmaline as crystal nucleus | |
| CN113415881A (en) | Device and method for realizing autotrophic nitrogen removal and synchronous phosphorus recovery of domestic sewage by using granular sludge with hydroxyapatite as crystal nucleus | |
| CN113003718B (en) | Starting method and application of short-range denitrification system | |
| CN104628131A (en) | Production device and method for achieving stable denitrification of nitrite in continuous flow | |
| CN110902809B (en) | Electrochemical-biological coupling excess sludge/digestive fluid closed-loop treatment method and treatment device | |
| CN112939333A (en) | Method for quickly starting anaerobic ammonia oxidation reactor and quickly improving total nitrogen removal load | |
| CN114477652B (en) | Advanced treatment system and method for urban sewage | |
| CN111661921A (en) | Method and device for quickly starting CANON process based on inoculated municipal activated sludge | |
| CN110776101A (en) | Device for treating urban sewage by utilizing partial nitrosation-anaerobic ammonia oxidation process and method used by device | |
| CN114477627A (en) | Method for promoting adherent growth of anaerobic ammonium oxidation sludge | |
| CN113248007B (en) | Method for reinforcing shortcut nitrification reactor by embedded cathode dynamic membrane | |
| CN115028265A (en) | Device and method for treating urban sewage by continuous flow sectional water inlet coupling pretreatment and fermented sludge sectional backflow reinforcement PD/A | |
| CN115432805A (en) | Method and device for realizing deep denitrification and desulfurization of fermentation wastewater by virtue of short-cut nitrification synchronous anaerobic ammonia oxidation coupled sulfur autotrophic denitrification | |
| CN211896257U (en) | One-stage partial nitrosation-anaerobic ammonia oxidation microparticle sludge culture device | |
| CN113233709A (en) | Non-membrane treatment method and system for domestic sewage | |
| CN108439588B (en) | Plug flow type reaction device and method for stable operation of nitrosation-anaerobic ammonia oxidation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220513 |