CN115594288A - Method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine - Google Patents
Method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine Download PDFInfo
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- CN115594288A CN115594288A CN202211137698.2A CN202211137698A CN115594288A CN 115594288 A CN115594288 A CN 115594288A CN 202211137698 A CN202211137698 A CN 202211137698A CN 115594288 A CN115594288 A CN 115594288A
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- 239000010865 sewage Substances 0.000 title claims abstract description 50
- 229910002651 NO3 Inorganic materials 0.000 title claims abstract description 40
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002351 wastewater Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 28
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title abstract 5
- 241000894006 Bacteria Species 0.000 claims abstract description 22
- 238000005273 aeration Methods 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 18
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims abstract description 15
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 17
- 239000010802 sludge Substances 0.000 claims description 13
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 206010021143 Hypoxia Diseases 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 230000002401 inhibitory effect Effects 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000006396 nitration reaction Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 241001453382 Nitrosomonadales Species 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
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- 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
- C02F3/006—Regulation methods for biological treatment
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/38—Gas flow rate
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- 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
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Abstract
A method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine belongs to the field of sewage treatment. The bottom of the MBBR reactor is provided with a micropore aeration disc, and an aeration pump is connected with the air inflow of a gas rotameter control system. Domestic sewage and nitrate wastewater enter the MBBR through a peristaltic pump, and hydroxylamine is added to effectively inhibit NOB (nitrite oxidizing bacteria), so that the shortcut nitrification of urban domestic sewage is quickly realized and stably maintained, and the activity of Anammox (anaerobic ammonium oxidation) bacteria is improved. NOB competing with the Anammox bacteria for the nitrite matrix in the system is further inhibited, and AOB (ammonia oxidizing bacteria), the Anammox and denitrifying bacteria are in a high-activity state, so that stable operation of the SPNAED integrated MBBR system is ensured. The invention has simple structure, strong operability, energy saving and consumption reduction, and can realize the synchronous treatment of the domestic sewage and the nitrate wastewater without an external carbon source.
Description
Technical Field
The invention relates to a method for synchronously treating domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine, belongs to the technical field of biological sewage treatment, and is suitable for denitrification treatment of low-carbon-nitrogen-ratio urban domestic sewage and nitrate wastewater.
Background
The excessive discharge of nitrogen in domestic sewage is one of the important reasons for water body oxygen deficiency, water body ecological environment damage and eutrophication. The traditional nitrification and denitrification process needs an additional carbon source and consumes a large amount of oxygen, and for domestic sewage with a low carbon-nitrogen ratio, the treatment cost is high, and the sludge yield is increased. The denitrification treatment of nitrate wastewater requires the addition of an external carbon source, which also increases the treatment cost. The adoption of the SPNAED integrated MBBR technology for the denitrification treatment of the domestic sewage and the nitrate wastewater with low carbon-nitrogen ratio is a more suitable scheme.
The SPNAED integrated technology has the advantages of low aeration energy consumption, carbon source saving, economy, high efficiency and the like, and becomes one of the hot spots of industrial research in recent years. Compared with a two-stage SPNAED process, the SPNAED integrated process is more convenient to operate and wider in application. The floccule sludge is easy to run off, the growth rate of the anaerobic ammonium oxidation bacteria is slow, and the filler is used as a carrier to entrap corresponding microbial populations so that the SPNAED effect can be stably maintained, so that the SPNAED integrated MBBR process is a suitable choice for the application of the SPNAED technology.
The SPNAED integrated biological membrane denitrification process can be successfully started through an AOA (anaerobic-aerobic-anoxic) operation mode, and the bottleneck for realizing the SPNAED integrated MBBR process is the realization and stable maintenance of short-cut nitrification and the enrichment of anaerobic ammonium oxidation bacteria. The NOB (nitrite oxidizing bacteria) in the spnae integrated system competes for dissolved oxygen with AOB (ammonia oxidizing bacteria) while competing for nitrite nitrogen with Anammox (anaerobic ammonia oxidizing bacteria). Therefore, the stable operation of the SPNAED integrated MBBR system of the domestic sewage can be realized only by successfully inhibiting the NOB activity.
The addition of hydroxylamine can effectively inhibit and elutriate NOB, so that AOB becomes a dominant nitrifying bacterium, and the short-cut nitrification of the urban domestic sewage is quickly started.
The long multiplication time of the anammox bacteria leads to a long start-up period, so the improvement of the anammox bacteria activity, the shortening of the start-up period of the anammox reactor and the maintenance of the stable operation thereof are problems to be solved urgently.
The MBBR process can combine the high efficiency of an activated sludge process and the characteristics of impact load resistance, long sludge age and less excess sludge of a traditional biomembrane process, has high organic matter removal rate, good denitrification effect, easy maintenance and management and difficult sludge expansion, and is more and more widely concerned in the industry.
Disclosure of Invention
The invention mainly provides a method for synchronously treating domestic sewage and nitrate wastewater by SPNAED integrated MBBR through adding hydroxylamine. The process has simple reaction device and flexible operation mode, and is suitable for the denitrification treatment of urban domestic sewage and nitrate wastewater with low carbon-nitrogen ratio.
The system for realizing the synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine comprises a domestic sewage inlet tank (1), an MBBR reactor (3), a nitrate wastewater inlet tank (16) and an outlet tank (4); domestic sewage enters an MBBR (moving bed biofilm reactor) reactor (3) under the control of a peristaltic pump (2) and a water inlet (10), nitrate wastewater enters the MBBR reactor (3) under the control of a peristaltic pump (17) and a water inlet (18), and the MBBR reactor is provided with an aeration pump (5), an aeration disc (7), a gas flowmeter (6), a stirrer (8), a filler, a WTW (water quality analysis meter) host (9), a sludge discharge port (13), a DO probe (14) and a pH probe (15); wherein the filler is polypropylene plastic ring filler, and the MBBR reactor effluent is controlled by a water outlet (11) and an electric drain valve (12) to drain water to an effluent tank (4).
The method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine is characterized by comprising the following steps:
1) Firstly, a polypropylene plastic ring filler for retaining SPNDA (synchronous shortcut nitrification and denitrification anaerobic ammonia oxidation) sludge is inoculated in an MBBR (moving bed biofilm reactor) (3), and the filling ratio of the filler is 15-25%;
2) In the starting stage, domestic sewage is added into a water inlet tank (1) at the initial anaerobic stage and enters an MBBR (moving bed biofilm reactor) through a peristaltic pump (2); nitrate wastewater is added into the water inlet tank (16) at the initial stage of oxygen deficiency and enters the MBBR through the peristaltic pump (17). Treating sewage in an anaerobic/aerobic/anoxic operation mode, starting a stirrer (8) to perform anaerobic stirring for 90-150 min after domestic sewage is fed, starting an aeration pump (5) after the anaerobic stirring is finished, and adjusting a gas rotameter to enable the DO concentration to be 0.4-1 mg/L and the aeration time to be 240-420 min; after aeration is finished, stirring for 120-300 min in an anoxic way to ensure that the nitrate wastewater generates denitrification reaction in the MBBR; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the mixture is stirred under oxygen deficiency and then is kept stand for precipitation for 30 min-50 min for mud-water separation; discharging 50% of the supernatant to a water outlet tank (4) under the control of a water outlet (11) and an electric drain valve (12);
3) Hydroxylamine is added within 5min of the end of the anaerobic period to ensure that the mass concentration in the MBBR reactor is 3-5 mg/L, thereby inhibiting the activity of NOB in the nitration process; meanwhile, the mass concentration ratio of aerobic final nitrite to ammonia nitrogen is controlled to be 1.1-1.5.
4) If the mass concentration ratio of nitrite to ammonia nitrogen is 1.1-1.5 at the end of aerobic treatment and the water quality of the effluent at the end of anoxic treatment reaches the first-level A standard (GB 18918-2002), the start of the reactor for synchronously treating domestic sewage and nitrate wastewater by SPNAED integrated MBBR can be successfully realized by adding hydroxylamine; the subsequent domestic sewage and nitrate wastewater can directly enter the MBBR, and are treated by adopting an anaerobic/aerobic/anoxic operation mode; anaerobic stirring for 90-150 min, and adding hydroxylamine within 5min of the end of the anaerobic stirring to ensure that the mass concentration in the MBBR reactor is 3-5 mg/L, thereby inhibiting the activity of NOB in the nitration process; adjusting a gas rotameter to enable DO concentration to be 0.4-1 mg/L, aerating for 240-420 min, controlling the mass concentration ratio of aerobic final nitrite to ammonia nitrogen to be 1.1-1.5, after aeration is finished, carrying out anoxic stirring for 120-300 min, carrying out anaerobic ammonia oxidation reaction on Anamox bacteria in the filler by utilizing generated nitrite nitrogen and ammonia nitrogen in inlet water, and simultaneously denitrifying nitrate by denitrifying bacteria; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the mixture is stirred under oxygen deficiency and then is kept stand for precipitation for 30 min-50 min for mud-water separation; and discharging 50% of the supernatant to the water outlet tank (4) through the control of the water outlet (11) and the electric drain valve (12).
In conclusion, according to the method for synchronously treating domestic sewage and nitrate wastewater by the SPNAED integrated MBBR through adding hydroxylamine into the MBBR, NOB activity in a nitrification process can be effectively inhibited, AOB activity is promoted, a short-cut nitrification effect is quickly started and maintained, the enrichment rate of Anammox bacteria is accelerated, the activity of the Anammox bacteria is improved, NOB competing with the Anammox bacteria for nitrite substrates is inhibited, and thus the denitrification operation effect of the reactor is improved.
Compared with the prior art, the method for synchronously treating domestic sewage and nitrate wastewater by adding hydroxylamine to realize SPNAED integrated MBBR has the following advantages:
(1) The SPNAED integrated MBBR reactor device is simple, good in controllability and easy to operate, saves the cost of a filler support and is flexible to operate.
(2) The SPNAED integrated process can save carbon sources, save aeration energy consumption and does not need sludge discharge, thereby reducing the operating cost of sewage denitrification treatment.
(3) The polypropylene plastic ring packing can enable microbial populations with different aerobic degrees to propagate and grow, and form stable aerobic, anoxic and anaerobic micro-environments on a biological membrane, so that coordinated symbiosis of microorganisms such as AOB (argon oxygen decarburization) bacteria and Anamox (Anammox) bacteria is facilitated, and stable operation of the reactor is ensured.
(4) Hydroxylamine is added into the MBBR reactor, so that the NOB activity can be effectively inhibited, the short-cut nitrification of the municipal domestic sewage can be quickly started, the nitrite accumulation is realized, and the long-term stable operation of the short-cut nitrification can be effectively enhanced.
(5) Synchronous treatment of domestic sewage and nitrate wastewater is realized in the MBBR, the cost is saved compared with independent sewage treatment, and a new scheme and thought are provided for sewage treatment.
Drawings
FIG. 1 is a schematic structural diagram of a device for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine.
In fig. 1: 1-domestic sewage inlet tank; 2-a peristaltic pump; 3-MBBR reactor; 4-water outlet tank; 5-an aeration pump; 6-gas flow meter; 7-an aeration disc; 8-a stirrer; 9-WTW host; 10-a water inlet; 11-a water outlet; 12-an electric drain valve; 13-a sludge discharge port; 14-DO probe; 15-pH probe; a 16-nitrate wastewater inlet tank; 17-a peristaltic pump; 18-water inlet.
FIG. 2 is a schematic diagram of an operation method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine.
Detailed Description
1) Firstly, a polypropylene plastic ring filler for retaining SPNDA sludge is inoculated in an MBBR (moving bed biofilm reactor) reactor (3), and the filling ratio of the filler is 15-25%;
2) In the starting stage, domestic sewage is added into a water inlet tank (1) in the anaerobic initial stage and enters an MBBR (moving bed biofilm reactor) through a peristaltic pump (2); nitrate wastewater is added into the water inlet tank (16) at the initial stage of oxygen deficiency and enters the MBBR through the peristaltic pump (17). Treating sewage in an anaerobic/aerobic/anoxic operation mode, starting a stirrer (8) to perform anaerobic stirring for 90-150 min after domestic sewage is fed, starting an aeration pump (5) after the anaerobic stirring is finished, and adjusting a gas rotameter to enable the DO concentration to be 0.4-1 mg/L and the aeration time to be 240-420 min; after aeration is finished, stirring for 120-300 min in an anoxic way to ensure that the nitrate wastewater generates denitrification reaction in the MBBR; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the mixture is stirred under oxygen deficiency and then is kept stand for precipitation for 30 min-50 min for mud-water separation; discharging 50% of the supernatant to a water outlet tank (4) through the control of a water outlet (11) and an electric drain valve (12);
3) Hydroxylamine is added within 5min at the end of the anaerobic period to ensure that the mass concentration in the MBBR is 3-5 mg/L, thereby inhibiting the activity of NOB in the nitration process; meanwhile, the mass concentration ratio of aerobic final nitrite to ammonia nitrogen is controlled to be 1.1-1.5.
4) If the mass concentration ratio of nitrite to ammonia nitrogen is 1.1-1.5 at the end of aerobic treatment and the water quality of the effluent at the end of anoxic treatment reaches the first-level A standard (GB 18918-2002), the start of the reactor for synchronously treating domestic sewage and nitrate wastewater by SPNAED integrated MBBR can be successfully realized by adding hydroxylamine; the subsequent domestic sewage and nitrate wastewater can directly enter the MBBR to be treated in an anaerobic/aerobic/anoxic operation mode; anaerobic stirring for 90-150 min, and adding hydroxylamine within 5min of the end of the anaerobic stirring to ensure that the mass concentration in the MBBR reactor is 3-5 mg/L, thereby inhibiting the activity of NOB in the nitration process; adjusting a gas rotameter to enable DO concentration to be 0.4-1 mg/L, aerating for 240-420 min, controlling the mass concentration ratio of aerobic final nitrite to ammonia nitrogen to be 1.1-1.5, after aeration is finished, carrying out anoxic stirring for 120-300 min, carrying out anaerobic ammonia oxidation reaction on Anamox bacteria in the filler by utilizing generated nitrite nitrogen and ammonia nitrogen in inlet water, and simultaneously denitrifying nitrate by denitrifying bacteria; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the mixture is stirred under oxygen deficiency and then is kept stand for precipitation for 30 min-50 min for mud-water separation; and discharging 50% of the supernatant to the water outlet tank (4) through the control of the water outlet (11) and the electric drain valve (12).
Claims (2)
1. Utilize and throw system that adds hydroxylamine and realize SPNAED integration MBBR synchronous treatment domestic sewage and nitrate waste water, its characterized in that includes: the device comprises a domestic sewage inlet tank (1), a nitrate wastewater inlet tank (16), an MBBR reactor (3) and an outlet tank (4); domestic sewage enters an MBBR (moving bed biofilm reactor) reactor (3) through the control of a peristaltic pump (2) and a water inlet (10), nitrate wastewater enters the MBBR reactor (3) through the control of a peristaltic pump (17) and a water inlet (18), and the MBBR reactor is provided with an aeration pump (5), an aeration disc (7), a gas flowmeter (6), a stirrer (8), a filler, a WTW (water quality analysis meter) host (9), a sludge discharge port (13), a DO probe (14) and a pH probe (15); wherein the filler is polypropylene plastic ring filler, and the MBBR reactor effluent is controlled by a water outlet (11) and an electric drain valve (12) to drain water to an effluent tank (4).
2. The method for strengthening the SPNAED integrated MBBR deep denitrification of domestic sewage and nitrate wastewater by applying the system of claim 1 is characterized by comprising the following steps:
1) Firstly, a polypropylene plastic ring filler for retaining SPNDA (namely synchronous short-cut nitrification-denitrification anaerobic ammonia oxidation sludge) is inoculated in an MBBR (moving bed biofilm reactor) reactor (3), and the filler filling ratio is 15-25%;
2) In the starting stage, domestic sewage is added into a water inlet tank (1) in the anaerobic initial stage and enters an MBBR (moving bed biofilm reactor) through a peristaltic pump (2); nitrate wastewater is added into the water inlet tank (16) at the initial stage of oxygen deficiency and enters the MBBR through the peristaltic pump (17). Treating sewage in an anaerobic/aerobic/anoxic operation mode, starting a stirrer (8) to perform anaerobic stirring for 90-150 min after domestic sewage is fed, starting an aeration pump (5) after the anaerobic stirring is finished, and adjusting a gas rotameter to enable the DO concentration to be 0.4-1 mg/L and the aeration time to be 240-420 min; after aeration is finished, stirring for 120-300 min in an anoxic way to ensure that the nitrate wastewater generates denitrification reaction in the MBBR; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the mixture is stirred under oxygen deficiency and then is kept stand for precipitation for 30 min-50 min for mud-water separation; discharging 50% of the supernatant to a water outlet tank (4) through the control of a water outlet (11) and an electric drain valve (12);
3) Hydroxylamine is added within 5min at the end of the anaerobic period to ensure that the mass concentration in the MBBR reactor is 3-5 mg/L, thereby inhibiting the activity of NOB (nitrite oxidizing bacteria) in the nitration process; and simultaneously controlling the mass concentration ratio of aerobic final nitrite to ammonia nitrogen to be 1.1-1.5.
4) If the mass concentration ratio of nitrite to ammonia nitrogen is 1.1-1.5 at the aerobic end and the water quality of the anoxic end effluent reaches the first-level A standard, the hydroxylamine is added to realize the startup success of the reactor for synchronously treating the domestic sewage and the nitrate wastewater by the SPNAED integrated MBBR; the subsequent domestic sewage and nitrate wastewater can directly enter the MBBR, and are treated by adopting an anaerobic/aerobic/anoxic operation mode; anaerobic stirring for 90-150 min, and adding hydroxylamine within 5min of the end of the anaerobic stirring to ensure that the mass concentration in the MBBR reactor is 3-5 mg/L, thereby inhibiting the activity of NOB in the nitration process; adjusting a gas rotameter to enable DO concentration to be 0.4-1 mg/L, aerating for 240-420 min, controlling the mass concentration ratio of aerobic final nitrite to ammonia nitrogen to be 1.1-1.5, after aeration is finished, carrying out anoxic stirring for 120-300 min, carrying out anaerobic ammonia oxidation reaction on Anamox bacteria in the filler by utilizing generated nitrite nitrogen and ammonia nitrogen in inlet water, and simultaneously denitrifying nitrate by denitrifying bacteria; the rotating speed of the stirrer is controlled to be 60r/min-80r/min, and the stirrer is kept stand and precipitated for 30 min-50 min after anoxic stirring for sludge-water separation; and discharging 50% of the supernatant to the water outlet tank (4) through the control of the water outlet (11) and the electric drain valve (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137698.2A CN115594288A (en) | 2022-09-19 | 2022-09-19 | Method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine |
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| CN202211137698.2A CN115594288A (en) | 2022-09-19 | 2022-09-19 | Method for realizing synchronous treatment of domestic sewage and nitrate wastewater by SPNAED integrated MBBR by adding hydroxylamine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116553725A (en) * | 2023-04-11 | 2023-08-08 | 深圳市水务(集团)有限公司 | AOA system and method for low-carbon-nitrogen-ratio urban sewage treatment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008296164A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Plant Technologies Ltd | Nitrogen removal method and apparatus |
| CN105293838A (en) * | 2015-11-30 | 2016-02-03 | 苏州科技学院 | Low-carbon-source wastewater synchronous nitrogen and carbon removal treatment method |
| CN108178302A (en) * | 2018-01-05 | 2018-06-19 | 北京工业大学 | Quickly started based on azanol and the integrated apparatus and method of stably maintaining shortcut nitrification/Anammox |
| CN112158952A (en) * | 2020-09-07 | 2021-01-01 | 北京工业大学 | 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 |
| CN112390361A (en) * | 2020-10-16 | 2021-02-23 | 北京工业大学 | Hydroxylamine and ferrous ion reinforced domestic sewage PNA integrated SBBR deep denitrification method |
| CN112479370A (en) * | 2020-11-10 | 2021-03-12 | 青岛大学 | Sewage autotrophic nitrogen removal device and method |
| CN113087134A (en) * | 2021-03-18 | 2021-07-09 | 北京工业大学 | Device and method for quickly realizing integration of partial shortcut nitrification/anaerobic ammonia oxidation by adding hydroxylamine and combining with low sludge age control |
| WO2021203800A1 (en) * | 2020-04-07 | 2021-10-14 | 福建中盟环保有限公司 | Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process |
| CN114772731A (en) * | 2022-04-19 | 2022-07-22 | 青岛思普润水处理股份有限公司 | AOA coupling autotrophic nitrogen removal water treatment method and system based on BFM form |
-
2022
- 2022-09-19 CN CN202211137698.2A patent/CN115594288A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008296164A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Plant Technologies Ltd | Nitrogen removal method and apparatus |
| CN105293838A (en) * | 2015-11-30 | 2016-02-03 | 苏州科技学院 | Low-carbon-source wastewater synchronous nitrogen and carbon removal treatment method |
| CN108178302A (en) * | 2018-01-05 | 2018-06-19 | 北京工业大学 | Quickly started based on azanol and the integrated apparatus and method of stably maintaining shortcut nitrification/Anammox |
| WO2021203800A1 (en) * | 2020-04-07 | 2021-10-14 | 福建中盟环保有限公司 | Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process |
| CN112158952A (en) * | 2020-09-07 | 2021-01-01 | 北京工业大学 | 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 |
| CN112390361A (en) * | 2020-10-16 | 2021-02-23 | 北京工业大学 | Hydroxylamine and ferrous ion reinforced domestic sewage PNA integrated SBBR deep denitrification method |
| CN112479370A (en) * | 2020-11-10 | 2021-03-12 | 青岛大学 | Sewage autotrophic nitrogen removal device and method |
| CN113087134A (en) * | 2021-03-18 | 2021-07-09 | 北京工业大学 | Device and method for quickly realizing integration of partial shortcut nitrification/anaerobic ammonia oxidation by adding hydroxylamine and combining with low sludge age control |
| CN114772731A (en) * | 2022-04-19 | 2022-07-22 | 青岛思普润水处理股份有限公司 | AOA coupling autotrophic nitrogen removal water treatment method and system based on BFM form |
Non-Patent Citations (3)
| Title |
|---|
| JIANTAO JI等: "A novel SNPR process for advanced nitrogen and phosphorus removal from mainstream wastewater based on anammox, endogenous partial-denitrification and denitrifying dephosphatation", WATER RESEARCH, 31 December 2020 (2020-12-31), pages 1 - 10 * |
| 吴军等: "村镇生活污水处理技术及管理维护", 31 July 2019, pages: 157 - 159 * |
| 陈佼等: "部分亚硝化-厌氧氨氧化耦合脱氮机理及其应用—以人工快速渗滤系统为例", 31 August 2020, pages: 063 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116553725A (en) * | 2023-04-11 | 2023-08-08 | 深圳市水务(集团)有限公司 | AOA system and method for low-carbon-nitrogen-ratio urban sewage treatment |
| CN116553725B (en) * | 2023-04-11 | 2023-12-15 | 深圳市水务(集团)有限公司 | AOA system and method for low-carbon-nitrogen-ratio urban sewage treatment |
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