CN115043485B - Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification - Google Patents
Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification Download PDFInfo
- Publication number
- CN115043485B CN115043485B CN202210659485.XA CN202210659485A CN115043485B CN 115043485 B CN115043485 B CN 115043485B CN 202210659485 A CN202210659485 A CN 202210659485A CN 115043485 B CN115043485 B CN 115043485B
- Authority
- CN
- China
- Prior art keywords
- denitrification
- ammonia oxidation
- type short
- fermentation type
- reactor
- 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.)
- Active
Links
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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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 discloses a device and a method for realizing fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification, belonging to the technical field of sewage biological treatment. The device comprises a water tank containing slow biodegradable organic matters, ammonia nitrogen and phosphorus, a primary sedimentation tank, a nitration reactor, a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor and a secondary sedimentation tank. The method comprises the following steps: the anaerobic section, the fermented short-cut denitrification dephosphorization bacteria convert the slow biodegradable organic matters into the fast biodegradable organic matters, and realize the storage of intracellular carbon sources and the release of phosphorus; and in the anoxic section, the fermentation type short-cut denitrification dephosphorization bacteria selectively reduce nitrate nitrogen into nitrite by using an intracellular carbon source, and the produced nitrite is further supplied to anaerobic ammonia oxidation bacteria for denitrification by excessive phosphorus absorption. The invention realizes the efficient coupling of denitrification dephosphorization and anaerobic ammonia oxidation denitrification technology on the basis of fully utilizing slow biodegradable organic matters.
Description
Technical Field
The invention relates to a device and a method for realizing coupling of fermentation type short-range denitrification dephosphorization and anaerobic ammonia oxidation denitrification, belongs to the technical field of sewage biological treatment, and is a method for solving the technical problem of coupling of denitrification dephosphorization and anaerobic ammonia oxidation denitrification on the basis of fully utilizing slow biodegradable organic matters.
Background
The low-carbon and low-energy-consumption treatment of nitrogen and phosphorus pollutants in urban sewage is an important measure for suppressing water eutrophication, assisting power and being low-carbon and environment-friendly.
Anaerobic ammonia oxidation is the most economical and efficient denitrification technology so far, and compared with the traditional nitrification and denitrification technology, the anaerobic ammonia oxidation can save 100% of aeration energy consumption and 100% of carbon source demand, and is a hot spot front edge of research in the field of biological denitrification of sewage.
Compared with the traditional aerobic dephosphorization technology, the denitrification dephosphorization technology can realize the dephosphorization and the nitrogen removal simultaneously, thereby saving 50% of carbon source consumption and 30% of aeration energy consumption, and being a research hot spot in the field of biological dephosphorization.
Nitrite is one of the necessary substrates for anaerobic ammonia oxidizing bacteria, is frequently in shortage in sewage and is often supplied by a front-end route. If the stable production of the nitrite in the denitrification dephosphorization process can be regulated, the anaerobic ammonia oxidation technology and the denitrification dephosphorization technology can be combined, so that the economical and efficient synchronous denitrification dephosphorization can be realized. The method is a potential technical path for realizing pollution reduction and carbon reduction and assisting ecological civilization construction.
The type of the carbon source has important influence on the accumulation of the nitrite and the removal of the phosphorus in the denitrification dephosphorization process. The quick biodegradable organic matter is beneficial to the stable accumulation of the nitrite in the denitrification process and the efficient storage of the intracellular carbon source in the denitrification dephosphorization process. The quick biodegradable organic matters in the actual sewage are often in shortage, and a carbon source is often needed to be added, so that extremely high carbon source adding cost is caused; the slow-speed biodegradable organic matters in the sewage are not capable of directly driving the accumulation of the nitrite and the removal of the phosphorus at present.
Converting the slow biodegradable organic matters into fast biodegradable organic matters by utilizing an in-situ fermentation technology, and storing the fast biodegradable organic matters as an intracellular carbon source so as to drive short-range denitrification dephosphorization; and then enriching fermentation type short-cut denitrification dephosphorization bacteria by controlling the carbon-nitrogen ratio, and being hopeful to realize high-efficiency coupling of denitrification dephosphorization and anaerobic ammonia oxidation technology on the basis of fully utilizing slow biodegradable organic matters. This method has not been reported yet.
Disclosure of Invention
The invention aims to provide a device and a method for realizing coupling of fermentation type short-range denitrification dephosphorization and anaerobic ammonia oxidation denitrification, which realize high-efficiency coupling of denitrification dephosphorization and anaerobic ammonia oxidation denitrification technology on the basis of fully utilizing slow biodegradable organic matters.
The technical principle of the invention is as follows: the anaerobic section, the fermented short-cut denitrification dephosphorization bacteria convert the slow biodegradable organic matters into the fast biodegradable organic matters, and further realize the storage of intracellular carbon sources and the release of phosphorus; and in the anoxic section, the fermentation type short-cut denitrification dephosphorization bacteria selectively reduce nitrate nitrogen into nitrite by using an intracellular carbon source, and the produced nitrite is further supplied to anaerobic ammonia oxidation bacteria for denitrification by excessive phosphorus absorption. According to the invention, under the premise of no need of additional carbon source and simple control, the economic and efficient synchronous removal of nitrogen and phosphorus is realized by combining the fermentation type short-range denitrification dephosphorization bacteria and the anaerobic ammonia oxidation bacteria. It is hopeful to reduce 45% aeration energy consumption and 79% carbon source consumption in denitrification and save 30% aeration energy consumption and 70% carbon source consumption in dephosphorization.
The invention aims at solving the problems by the following technical scheme: the device for realizing the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification comprises a water tank containing slow biodegradable organic matters, ammonia nitrogen and phosphorus, a primary sedimentation tank, a nitration reactor, a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor and a secondary sedimentation tank; wherein the water tank containing the slow biodegradable organic matters, ammonia nitrogen and phosphorus is connected with the primary sedimentation tank through a first water inlet pump; the primary sedimentation tank is connected with the nitration reactor through a second water inlet pump; the primary sedimentation tank is connected with an anaerobic zone of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a third water inlet pump; the nitrification reactor is connected with the anoxic zone of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a fourth water inlet pump; the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor is connected with the secondary sedimentation tank through a first water outlet pipe; the secondary sedimentation tank is connected with an anaerobic zone of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a sludge reflux pump;
the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor is provided with a fourth water inlet pump, a third water inlet pump, an anaerobic zone, an anaerobic stirrer, an anoxic zone, an anoxic stirrer, a first water outlet pipe, a sludge reflux pump and anoxic filler.
The invention also provides a method for realizing the coupling anaerobic ammonia oxidation denitrification of the fermentation type short-cut denitrification dephosphorization, which comprises the following specific steps:
1) Adding aerobic nitrifying filler into a nitrifying reactor; adding sewage plant sludge into a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor; adding anoxic filler into an anoxic zone of a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor;
2) Starting a first water inlet pump to pump wastewater containing slow-speed biodegradable organic matters, ammonia nitrogen and phosphorus into a primary sedimentation tank to realize sedimentation of the slow-speed biodegradable organic matters and separation of the slow-speed biodegradable organic matters and the wastewater containing ammonia nitrogen and phosphorus;
3) The wastewater containing ammonia nitrogen and phosphorus enters a nitration reactor through a second water inlet pump to be nitrated in the whole process to produce nitrate nitrogen, and the mass ratio of the nitrate nitrogen to the ammonia nitrogen is controlled to be more than 1:4;
4) The precipitated slow biodegradable organic matters enter an anaerobic zone of a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a third water inlet pump to ferment, are firstly converted into fast biodegradable organic matters, are further stored in cells, and are simultaneously released along with phosphorus release;
5) The waste water containing nitrate nitrogen, ammonia nitrogen and phosphorus enters an anoxic zone of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a fourth water inlet pump, and fermentation type short-cut denitrification dephosphorization bacteria selectively reduce the nitrate nitrogen into nitrite by utilizing an intracellular carbon source, and the anaerobic ammonia oxidation bacteria attached to anoxic fillers convert the produced nitrite and ammonia nitrogen in the waste water into nitrogen for removal along with excessive absorption of phosphorus;
6) The sludge-water mixture containing the fermentation type short-cut denitrification dephosphorization bacteria enters a secondary sedimentation tank through a first water outlet pipe to realize sludge-water separation, the effluent flows out through a second water outlet pipe, and the sludge containing the fermentation type short-cut denitrification dephosphorization bacteria flows back into an anaerobic zone of the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor through a sludge reflux pump;
7) After the removal performance of organic matters, phosphorus and nitrate nitrogen in the fermentation type short-cut denitrification and dephosphorization coupling anaerobic ammonia oxidation denitrification reactor is stable, the mass ratio of the nitrate nitrogen to ammonia nitrogen is increased in a gradient way, and finally, enrichment of the fermentation type short-cut denitrification and dephosphorization and stable cooperation with anaerobic ammonia oxidation bacteria are realized.
The device and the method for realizing the coupling anaerobic ammonia oxidation denitrification of the fermentation type short-cut denitrification dephosphorization have the following advantages:
1) Under the condition of no external carbon source addition, slow biodegradable organic matters in the sewage are fully utilized, the efficient coupling of the denitrification dephosphorization and anaerobic ammonia oxidation denitrification technology is realized, and the cost burden of the short-range denitrification technology caused by the external carbon source addition is effectively reduced.
2) Compared with the denitrification dephosphorization technology, on the premise of fully utilizing slow biodegradable organic matters, the high-efficiency coupling with anaerobic ammonia oxidizing bacteria is realized, and 45% aeration energy consumption and 79% carbon source consumption are further reduced in the aspect of denitrification.
3) Compared with the short-cut denitrification anaerobic ammonia oxidation technology, the method has the advantages that on the premise of fully utilizing slow biodegradable organic matters, the efficient removal of phosphorus is realized, and the aeration energy consumption of 30% and the carbon source consumption of 70% are further saved in the aspect of phosphorus removal.
4) Compared with the short-cut denitrification dephosphorization technology, the method overcomes the technical problem that the slow biodegradable organic matters cannot be utilized, and enriches the functional strains with the functions of fermentation and short-cut denitrification dephosphorization.
5) The invention has simple control and convenient operation management, is beneficial to realizing the synchronous reduction of nitrogen and phosphorus with low carbon and low energy consumption in newly built water plants, and is also suitable for realizing the upgrading and transformation of pollution reduction and carbon reduction in the original sewage treatment plants.
Drawings
FIG. 1 is a schematic diagram of the structure of a device and a method for realizing the coupling of fermentation type short-cut denitrification dephosphorization and anaerobic ammonia oxidation denitrification. In the figure, 1 is a water tank containing slow biodegradable organic matters, ammonia nitrogen and phosphorus, 2 is a primary sedimentation tank, 3 is a nitration reactor, 4 is a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor, and 5 is a secondary sedimentation tank; 2.1 is a first water inlet pump; 3.1 is a second water inlet pump, and 3.2 is aerobic nitrifying filler; 4.1 is a fourth water inlet pump, 4.2 is a third water inlet pump, 4.3 is an anaerobic zone, 4.4 is an anaerobic stirrer, 4.5 is an anoxic zone, 4.6 is an anoxic stirrer, 4.7 is a first water outlet pipe, 4.8 is a sludge reflux pump, and 4.9 is an anoxic filler; and 5.1 is a second water outlet pipe.
Detailed Description
The invention is further illustrated by the following figures and examples: as shown in fig. 1, a device and a method for realizing fermentation type short-cut denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification, wherein the device comprises: the device comprises a slow biodegradable organic matter, ammonia nitrogen and phosphorus water tank 1, a primary sedimentation tank 2, a nitration reactor 3, a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 and a secondary sedimentation tank 5; wherein the water tank 1 containing the slow biodegradable organic matters, ammonia nitrogen and phosphorus is connected with the primary sedimentation tank 2 through a first water inlet pump 2.1; the primary sedimentation tank 2 is connected with the nitration reactor 3 through a second water inlet pump 3.1; the primary sedimentation tank 2 is connected with an anaerobic zone 4.3 of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a third water inlet pump 4.2; the nitrification reactor 3 is connected with an anoxic zone 4.5 of the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a fourth water inlet pump 4.1; the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 is connected with the secondary sedimentation tank 5 through a first water outlet pipe 4.7; the secondary sedimentation tank 5 is connected with an anaerobic zone 4.3 of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a sludge reflux pump 4.8;
wherein the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 is provided with a fourth water inlet pump 4.1, a third water inlet pump 4.2, an anaerobic zone 4.3, an anaerobic stirrer 4.4, an anoxic zone 4.5, an anoxic stirrer 4.6, a first water outlet pipe 4.7, a sludge reflux pump 4.8 and an anoxic filler 4.9.
In the test process, granular starch, ammonium chloride, monopotassium phosphate, 0.3. 0.3 ml/L nutrient solution and tap water are adopted to simulate wastewater containing slow-speed biodegradable organic matters, ammonia nitrogen and phosphorus, wherein the concentration of the slow-speed biodegradable organic matters is 500 mg COD/L, the concentration of the ammonia nitrogen is 60 mg/L, and the concentration of the phosphorus is 6 mg/L. The nutrient solution components are shown in Table 1.
Table 1 nutrient solution formulation
| Substance (B) | Concentration (g/L) | Substance (B) | Concentration (g/L) | |
| Microelements I | EDTA | 5.00 | FeSO 4 | 5.00 |
| Trace element II | EDTA | 15.0 | NaSeO 4 ·10H 2 O | 0.21 |
| H 3 BO 3 | 0.014 | ZnSO 4 ·7H 2 O | 0.43 | |
| CuSO 4 ·5H 2 O | 0.25 | CoCl 2 ·6H 2 O | 0.24 | |
| NaMoO 4 ·2H 2 O | 0.22 | NiCl 2 ·6H 2 O | 0.19 | |
| MnCl 2 ·4H 2 O | 0.99 |
As shown in FIG. 1, each reactor is made of organic glass, the effective volume of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 is 40L, and the effective volume of the secondary sedimentation tank 5 is 20L.
The specific operation is as follows:
1) Adding aerobic nitrifying filler 3.2 into the nitrifying reactor 3, wherein the filler filling rate is 15%; the sewage plant sludge is added into a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4, the sludge concentration is 4000 mg/L, an anoxic filler 4.9 is added into an anoxic zone 4.5 of the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4, and the filler filling rate is 25%;
2) Starting a first water inlet pump 2.1 to pump wastewater containing slow-speed biodegradable organic matters, ammonia nitrogen and phosphorus into a primary sedimentation tank 2 to realize sedimentation of the slow-speed biodegradable organic matters and separation of the slow-speed biodegradable organic matters and the wastewater containing the ammonia nitrogen and the phosphorus;
3) The wastewater containing ammonia nitrogen and phosphorus enters a nitration reactor 3 through a second water inlet pump 3.1 to be nitrated in the whole course to produce nitrate nitrogen, and the mass ratio of the nitrate nitrogen to the ammonia nitrogen is controlled at 1:4;
4) The precipitated slow biodegradable organic matters enter an anaerobic zone 4.3 of a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a third water inlet pump 4.2 for fermentation, are firstly converted into fast biodegradable organic matters, are further stored into cells, and are simultaneously released along with phosphorus, wherein the hydraulic retention time of the anaerobic zone 4.3 is controlled to be 8 hours;
5) The wastewater containing nitrate nitrogen, ammonia nitrogen and phosphorus enters an anoxic zone 4.5 of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a fourth water inlet pump 4.1, the fermentation type short-cut denitrification dephosphorization bacteria selectively reduce the nitrate nitrogen into nitrite by utilizing an intracellular carbon source, and the anaerobic ammonia oxidation bacteria attached to anoxic fillers convert the produced nitrite and ammonia nitrogen in the wastewater into nitrogen for removal along with excessive absorption of phosphorus, wherein the hydraulic retention time of the anoxic zone 4.5 is controlled to be 4 hours;
6) The sludge-water mixture containing the fermentation type short-cut denitrification dephosphorization bacteria enters a secondary sedimentation tank 5 through a first water outlet pipe 4.7 to realize sludge-water separation, the effluent flows out through a second water outlet pipe 5.1, and the sludge containing the fermentation type short-cut denitrification dephosphorization bacteria flows back into an anaerobic zone 4.3 of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 through a sludge reflux pump 4.8;
7) After 55 days of continuous operation, the removal performances of organic matters, phosphorus and nitrate in the fermentation type short-cut denitrification and dephosphorization coupling anaerobic ammonia oxidation denitrification reactor 4 are respectively stabilized at 70%, 65% and 100%, the mass ratio of nitrate to ammonia nitrogen is increased from more than 1:4 to 1:1 gradually, and finally, the enrichment of the fermentation type short-cut denitrification and dephosphorization and the stable cooperation of the fermentation type short-cut denitrification and dephosphorization with anaerobic ammonia oxidation bacteria are realized.
The test results show that: under the conditions that the concentration of slow biodegradable organic matters is 500 mg COD/L, the concentration of ammonia nitrogen is 60 mg/L, the concentration of phosphorus is 6 mg/L, and the hydraulic retention time of an anaerobic zone and an anoxic zone in the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor is 8 hours and 4 hours respectively, the COD of effluent is less than 100 mg/L, the phosphorus removal rate is more than 85%, and the ammonia nitrogen removal rate is more than 90%, so that the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification is successfully realized.
Claims (1)
1. A method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification, wherein a device used by the method comprises the following steps: the device comprises a slow biodegradable organic matter, ammonia nitrogen and phosphorus water tank (1), a primary sedimentation tank (2), a nitration reactor (3), a fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification reactor (4) and a secondary sedimentation tank (5); wherein the water tank (1) containing the slow biodegradable organic matters, ammonia nitrogen and phosphorus is connected with the primary sedimentation tank (2) through a first water inlet pump (2.1); the primary sedimentation tank (2) is connected with the nitration reactor (3) through a second water inlet pump (3.1); the primary sedimentation tank (2) is connected with an anaerobic zone (4.3) of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a third water inlet pump (4.2); the nitrification reactor (3) is connected with an anoxic zone (4.5) of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a fourth water inlet pump (4.1); the fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) is connected with a secondary sedimentation tank (5) through a first water outlet pipe (4.7); the secondary sedimentation tank (5) is connected with an anaerobic zone (4.3) of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a sludge reflux pump (4.8);
wherein the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) is provided with a fourth water inlet pump (4.1), a third water inlet pump (4.2), an anaerobic zone (4.3), an anaerobic stirrer (4.4), an anoxic zone (4.5), an anoxic stirrer (4.6), a first water outlet pipe (4.7), a sludge reflux pump (4.8) and an anoxic filler (4.9), and the method is characterized by comprising the following steps:
1) adding aerobic nitrifying filler (3.2) into a nitrifying reactor (3); adding sewage plant sludge into a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4); adding an anoxic filler (4.9) into an anoxic zone (4.5) of the fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4);
2) Starting a first water inlet pump (2.1) to pump wastewater containing slow-speed biodegradable organic matters, ammonia nitrogen and phosphorus into a primary sedimentation tank (2) to realize sedimentation of the slow-speed biodegradable organic matters and separation of the slow-speed biodegradable organic matters and the wastewater containing the ammonia nitrogen and the phosphorus;
3) The wastewater containing ammonia nitrogen and phosphorus enters a nitration reactor (3) through a second water inlet pump (3.1) to be nitrated in the whole course to produce nitrate nitrogen, and the mass ratio of the nitrate nitrogen to the ammonia nitrogen is controlled to be more than 1:4;
4) The precipitated slow biodegradable organic matters enter an anaerobic zone (4.3) of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a third water inlet pump (4.2) to ferment, are firstly converted into fast biodegradable organic matters, are further stored in cells, and are simultaneously released along with phosphorus;
5) The wastewater containing nitrate nitrogen, ammonia nitrogen and phosphorus enters a fermentation type short-range denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a fourth water inlet pump (4.1), the fermentation type short-range denitrification dephosphorization bacteria selectively reduce the nitrate nitrogen into nitrite by using an intracellular carbon source, and the anaerobic ammonia oxidation bacteria attached to anoxic fillers convert the produced nitrite and ammonia nitrogen in the wastewater into nitrogen for removal along with excessive absorption of phosphorus;
6) The sludge-water mixture containing the fermentation type short-cut denitrification dephosphorization bacteria enters a secondary sedimentation tank (5) through a first water outlet pipe (4.7) to realize sludge-water separation, the effluent flows out through a second water outlet pipe (5.1), and the sludge containing the fermentation type short-cut denitrification dephosphorization bacteria flows back into an anaerobic zone (4.3) of a fermentation type short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation denitrification reactor (4) through a sludge reflux pump (4.8);
7) After the removal performance of organic matters, phosphorus and nitrate nitrogen in the short-cut denitrification and dephosphorization coupled anaerobic ammonia oxidation denitrification reactor (4) is stable, the mass ratio of the nitrate nitrogen to ammonia nitrogen is increased in a gradient way, and finally, enrichment of the short-cut denitrification and dephosphorization of fermentation and stable cooperation with anaerobic ammonia oxidation bacteria are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659485.XA CN115043485B (en) | 2022-06-13 | 2022-06-13 | Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659485.XA CN115043485B (en) | 2022-06-13 | 2022-06-13 | Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115043485A CN115043485A (en) | 2022-09-13 |
| CN115043485B true CN115043485B (en) | 2023-08-08 |
Family
ID=83161571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210659485.XA Active CN115043485B (en) | 2022-06-13 | 2022-06-13 | Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115043485B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115745318A (en) * | 2022-12-07 | 2023-03-07 | 中原环保股份有限公司 | Kitchen waste water treatment method based on adsorption coupling anaerobic ammonia oxidation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540841A (en) * | 2015-12-15 | 2016-05-04 | 华东师范大学 | Method and equipment for aerobic/anaerobic biofilter biological denitrogenation |
| CN109678245A (en) * | 2019-01-30 | 2019-04-26 | 西安建筑科技大学 | A kind of water process operation method of the enhanced biological nitrogen removal utilized based on carbon source optimizing |
| CN113415899A (en) * | 2021-06-25 | 2021-09-21 | 北京工业大学 | Device and method for coupling adsorption hydrolysis with short-range denitrification and series anaerobic ammonia oxidation deep denitrification based on slow degradation of organic matters |
| CN113697954A (en) * | 2021-08-12 | 2021-11-26 | 北京工业大学 | Device and method for realizing short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation deep denitrification through side flow reactor |
| CN114149079A (en) * | 2021-12-28 | 2022-03-08 | 郑州轻工业大学 | Sludge fermentation enhanced short-cut denitrification-anaerobic ammonia oxidation denitrification and phosphorus recovery device and method |
| WO2022088778A1 (en) * | 2020-10-31 | 2022-05-05 | 北京工业大学 | System and method for partial anaerobic ammoxidation deep nitrogen and phosphorus removal by means of biological membrane circulation alternation in main flow and side flow areas of urban sewage treatment plant |
-
2022
- 2022-06-13 CN CN202210659485.XA patent/CN115043485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540841A (en) * | 2015-12-15 | 2016-05-04 | 华东师范大学 | Method and equipment for aerobic/anaerobic biofilter biological denitrogenation |
| CN109678245A (en) * | 2019-01-30 | 2019-04-26 | 西安建筑科技大学 | A kind of water process operation method of the enhanced biological nitrogen removal utilized based on carbon source optimizing |
| WO2022088778A1 (en) * | 2020-10-31 | 2022-05-05 | 北京工业大学 | System and method for partial anaerobic ammoxidation deep nitrogen and phosphorus removal by means of biological membrane circulation alternation in main flow and side flow areas of urban sewage treatment plant |
| CN113415899A (en) * | 2021-06-25 | 2021-09-21 | 北京工业大学 | Device and method for coupling adsorption hydrolysis with short-range denitrification and series anaerobic ammonia oxidation deep denitrification based on slow degradation of organic matters |
| CN113697954A (en) * | 2021-08-12 | 2021-11-26 | 北京工业大学 | Device and method for realizing short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation deep denitrification through side flow reactor |
| CN114149079A (en) * | 2021-12-28 | 2022-03-08 | 郑州轻工业大学 | Sludge fermentation enhanced short-cut denitrification-anaerobic ammonia oxidation denitrification and phosphorus recovery device and method |
Non-Patent Citations (1)
| Title |
|---|
| 初沉池改造为回流污泥反硝化池最佳进水比例研究;杨敏;孙永利;郑兴灿;游佳;;南京理工大学学报(第02期);第279-283页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115043485A (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110143725B (en) | Device and method for treating urban sewage by using mixed sludge fermentation liquor as carbon source through continuous flow short-cut denitrification coupling anaerobic ammonia oxidation process | |
| CN106830324B (en) | Sectional water inlet A2Device and method for enhancing biological nitrogen and phosphorus removal by adopting/O (oxygen/phosphorus) process | |
| CN112158952B (en) | Device and method for treating low-carbon-nitrogen-ratio wastewater through continuous flow AOA (argon oxygen decarburization) shortcut nitrification and anaerobic ammonia oxidation coupling sludge fermentation denitrification | |
| CN103601341B (en) | SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation | |
| CN106745743B (en) | Sewage nitrogen and phosphorus removal system | |
| CN105461061A (en) | A<2>/O-biology synchronous nitrogen and phosphorus removal device and method for urban sewage | |
| CN104058555B (en) | Based on low ratio of carbon to ammonium municipal effluent denitrification system and the treatment process of Anammox | |
| CN104556376A (en) | Autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite | |
| CN109160606B (en) | Method for producing methane and efficiently and deeply denitrifying urban sewage | |
| CN113233589B (en) | Device and method for realizing synchronous short-cut nitrification, anaerobic ammonia oxidation, denitrification and dephosphorization advanced treatment of municipal domestic sewage by intermittent aeration | |
| CN114477420B (en) | Method and device for realizing deep denitrification of sewage by virtue of double coupling of continuous flow AOA (argon oxygen decarburization) short-cut nitrification and endogenous short-cut denitrification and anaerobic ammonia oxidation | |
| CN101279794A (en) | Enhanced endogenous denitrification process and device for denitrification and phosphorus removal by using film-bioreactor | |
| CN105198168B (en) | A2/O-MBR-biological contact oxidation pond dual-sludge high-efficiency denitrifying phosphorus removal device and method | |
| CN112607861A (en) | Process for treating municipal sewage by using excess sludge fermentation carbon source to strengthen denitrification dephosphorization, partial short-cut denitrification and anaerobic ammonia oxidation | |
| CN106348448A (en) | Wastewater treatment process for advanced bio-denitrification | |
| CN114212885B (en) | Device and method for treating main flow low carbon nitrogen ratio domestic sewage by two-stage whole-course ammoxidation-short-range denitrification anaerobic ammoxidation | |
| CN115043485B (en) | Device and method for realizing fermentation type short-range denitrification dephosphorization coupled anaerobic ammonia oxidation denitrification | |
| CN201923926U (en) | Low carbon biological phosphorus removal and autotroph denitrogenation device for municipal sewage | |
| CN115140842A (en) | Process and device for synchronously removing nitrogen and phosphorus from sewage by using denitrification | |
| CN209740813U (en) | Anaerobic-aerobic internal circulation sludge in-situ reduction system based on A2/O process | |
| CN108383239B (en) | Integrated biological treatment process for shortcut nitrification anaerobic ammonia oxidation and phosphorus removal under intermittent aeration mode | |
| CN114180715A (en) | Continuous flow short-cut denitrification coupling anaerobic ammonia oxidation enhanced flora enrichment device and 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 | |
| CN203593686U (en) | Anammox-based SBR+SBBR urban highly-effective wastewater biological treatment device | |
| CN203048738U (en) | Device for strengthening autotrophic nitrogen removal of urban wastewater oxidation ditch 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |