CN110818080A - One-section type EGSB anaerobic ammonia oxidation device adopting jet aeration - Google Patents
One-section type EGSB anaerobic ammonia oxidation device adopting jet aeration Download PDFInfo
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- 238000005273 aeration Methods 0.000 title claims abstract description 112
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 230000003647 oxidation Effects 0.000 title claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 238000010992 reflux Methods 0.000 claims abstract description 100
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000001301 oxygen Substances 0.000 claims abstract description 86
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 86
- 239000007789 gas Substances 0.000 claims abstract description 45
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 23
- 238000010008 shearing Methods 0.000 claims abstract description 17
- 238000005276 aerator Methods 0.000 claims description 33
- 238000004519 manufacturing process Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 19
- 230000001706 oxygenating effect Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 2
- 230000011218 segmentation Effects 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 230000033228 biological regulation Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 241001453382 Nitrosomonadales Species 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000013619 trace mineral Nutrition 0.000 description 3
- 239000011573 trace mineral Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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Abstract
The invention discloses a one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration, which comprises a device main body (1), a three-phase separator (2), an internal reflux valve (3), an internal reflux pipeline (4) and the like. The invention aerates the gas source (O) by jet flow2With biochemical reaction to produce N2And the remainder of O2) The flexible combined regulation and control of jet aeration water sources (raw water and internal reflux) meet the strict flow state shearing condition and the accurate DO control condition required by the formation and the maintenance of the stable activity of the one-stage EGSB anaerobic ammonia oxidation granular sludge; the jet aeration power source is an internal reflux system, and aeration equipment is not required to be added, so that the equipment investment and energy consumption are saved; n produced by biochemical reaction2And the remainder of O2Can be used as a jet aeration air source to realize comprehensive utilization of resources; the jet aeration air quantity and the gas combination proportion can be flexibly adjusted, and O2The gas quantity is easier to control accurately, and the accurate supply of the oxygen charging quantity is realized.
Description
Technical Field
The invention belongs to the field of sewage treatment equipment, and particularly relates to a one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration.
Background
The one-stage anaerobic ammonia oxidation (shortcut nitrification-anaerobic ammonia oxidation) process couples shortcut nitrification and anaerobic ammonia oxidation and is suitable for higher NH4 +-treatment of wastewater with N concentration. In this process, Ammonia Oxidizing Bacteria (AOB) will partially react NH4 +Oxidation of-N to NO2 --N, NO produced2 --N and remaining NH4 +-N as a substrate for anammox bacteria, further reacting to form N2With small amounts of NO3 -Compared with the anaerobic ammonia oxidation and the traditional nitrification-denitrification technology, the one-stage anaerobic ammonia oxidation technology has the advantages of low energy consumption, no additional carbon source, low sludge yield, small occupied area and the like, becomes one of the most innovative technologies in the field of sewage treatment, and has wide prospect.
Although the one-stage anaerobic ammonia oxidation is successfully applied to the treatment of high ammonia nitrogen wastewater, the feasibility is preliminarily verified, the denitrification performance and the stability still need to be further improved, wherein how to effectively inhibit and eliminate NO under the condition of ensuring the activity of Ammonia Oxidizing Bacteria (AOB) and anaerobic ammonia oxidizing bacteria (ANAOB)2 -The problem to be solved is N-oxidizing bacteria (NOB).
Anaerobic ammonia oxidation granular sludge finally forms compact structure and regular shape dense biopolymer through the self-immobilization process of microorganism under the appropriate flow state condition and shearing action force, wherein AOB bacteria are generally distributed on the surfaces of granules, and AnAOB is mostly distributed inside the granules, so that more reasonable biological community functional partition is facilitated, and effective inhibition of NOB can be realized on the premise of accurate DO control.
At present, a traditional granular sludge expanded bed reactor (EGSB) usually has certain ascending flow velocity and flow state through internal reflux and water inflow, is limited by water inflow load and removal effect, and has lower adjustable flexibility of the flow state; meanwhile, the aeration mode of the EGSB reactor is mainly air aeration of a blower, the aeration rate is large, the mass transfer efficiency is poor, the oxygen utilization rate is low, the energy consumption is high, research reports show that the bubble-free aeration is carried out by oxygenating water, the oxygen utilization rate is improved to a certain extent, but the flow state condition required by the granular sludge is difficult to be considered.
In conclusion, it is still a difficult problem in the art to consider both the severe flow state shearing condition and the precise DO control condition required for forming and maintaining the stable activity of the one-stage EGSB anammox granular sludge.
Disclosure of Invention
The invention aims to solve the problem that the strict flow state shearing condition and the accurate DO control condition required for forming and maintaining the stable activity of the one-stage EGSB anaerobic ammonia oxidation granular sludge are difficult to meet simultaneously.
In order to achieve the purpose of the invention, the technical scheme of the invention is as follows: a one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration comprises: the device comprises a device main body (1), a three-phase separator (2), an internal reflux valve (3), an internal reflux pipeline (4), an internal reflux flow meter (5), an internal reflux pump (6), a jet aerator (7), a water inlet tank (8), a water inlet flow meter (9), a water inlet pump (10), a water inlet valve (11), a water inlet valve (12), a perforated water distributor (13), a tooth-shaped overflow weir (14), a U-shaped water outlet (15), a gas production valve (16), a gas production valve (17), an aeration pipeline (18), an oxygen generator (19), an oxygen valve (20), an oxygen flow meter (21), an aeration flow meter (22), an aeration pipeline reducer (23), an online DO electrode (24) and a reactor vent valve (25).
The upper part of the device main body (1) is provided with a three-phase separator (2); the lower part of the device main body (1) is provided with a jet aerator (7); the jet aerator (7) is connected with the internal reflux pipeline (4), the aeration pipeline (18) and the water inlet valve (11); the water inlet valve (11) is connected with a perforated water distributor (13); the reactor emptying valve (25) is positioned at the lowest part of the device main body (1). A tooth-shaped overflow weir (14) is arranged above the three-phase separator (2); the internal reflux system is formed by the internal reflux valve (3), an internal reflux pipeline (4), an internal reflux flowmeter (5) and an internal reflux pump (6); the water inlet tank (8), the water inlet flow meter (9), the water inlet pump (10), the water inlet valve (11) and the water inlet valve (12) form a water inlet system together;
the tooth-shaped angle of the tooth-shaped overflow weir (14) is 90 degrees, the tooth-shaped height is 50-80mm, and the tooth-shaped overflow weir (14) is connected with the U-shaped water outlet (15) to jointly realize the drainage function;
the top of the three-phase separator (2) is provided with a gas production valve A (16) and a gas production valve B (17), and the gas production valve A (17) is connected with an aeration pipeline (18); an aeration flowmeter (22) and an aeration pipeline reducing port (23) are arranged on the aeration pipeline (18);
the oxygen generator (19) is connected with an oxygen valve (20) and an oxygen flow meter (21) and enters an aeration pipeline (18); the wire DO electrode (24) is provided at an intermediate position of the apparatus main body (1).
The aperture range of the perforated water distributor (13) is 3-6 mm.
The effective height-diameter ratio of the device main body (1) is 5-10.
The volume of the three-phase separator (2) is 15-20% of the effective volume of the device main body (1), and the three-phase separator adopts an inverted cone bucket or inclined plate form, wherein the distance between the inverted cone bucket and the side wall of the reactor is 5-10mm, and the distance between the inclined plates is 5-10 mm.
The oxygen purity of the oxygen generator (19) is more than 90 percent;
the tail end of the jet aerator (7) is provided with a sand core aeration disc, a ceramic aeration disc, a rubber aeration disc or a membrane aeration disc and the like, and the particle size range of bubbles after aeration of the jet aerator (7) is 0.1-1.0 mm.
Based on the device, the invention discloses a one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration, which comprises the following specific operation steps:
s1 water inlet operation: the raw water is pumped into device main part (1) in case (8) will intake in intake pump (10), carries out flow control through intake flowmeter (9) and sets up, and the mode that raw water got into device main part (1) divide into two kinds of operations:
s2.1, closing a water inlet valve (12), opening the water inlet valve (11), and enabling raw water to enter the device main body (1) through a perforated water distributor (13);
s2.2, closing the water inlet valve (11), opening the water inlet valve (12), aerating and oxygenating raw water by the jet aerator (7), and then entering the device main body (1);
s2 reflux operation: opening an internal reflux valve (3), starting an internal reflux pump (6), setting the flow rate through an internal reflux flowmeter (5), feeding reflux liquid into a jet aerator (7), aerating and oxygenating, and then feeding the reflux liquid into the device main body (1);
s3 purge operation: production of N by anammox reaction2And the remainder of O2The specific exhaust mode is divided into three modes:
s3.1, closing the gas production valve (17), opening the gas production valve (16) and generating N2And the remainder of O2Discharge to the air;
s3.2, closing the gas production valve (16), opening the gas production valve (17) and generating N2And the remainder of O2Enters an aeration pipeline (18) for jet aeration to participate in flow state control;
s3.3, opening the gas production valve (16), opening the gas production valve (17) and generating N2And the remainder of O2Partial emptying, and partial participation in jet aeration;
s4 oxygen supply operation: opening the oxygen valve (20), starting the oxygen generator (19), setting the oxygen flow through the oxygen flow meter (21) to generate O2N generated by biochemical reaction and entering an aeration pipeline (18)2And the remainder of O2Mixing, and introducing into a jet aerator (7) for aeration;
s5 jet aeration operation: the jet aeration gas source is O2Biochemical reaction to produce N2And the remainder of O2The jet aeration water source is water inlet and internal reflux liquid, and is regulated and controlled according to different air sources and water sources, and the operation is as follows:
s5.1, internal reflux and O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); opening oxygen valve (20), starting oxygen generator (19), setting oxygen flow rate through oxygen flowmeter (21), internal reflux liquid and O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.2, internal reflux and O2Biochemical reaction to produce N2And the remainder of O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); opening a gas production valve (17), and arranging an aeration flowmeter (22); internal reflux liquid and O2Biochemical reaction to produce N2And the remainder of O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.3, internal reflux, water inflow and O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10) and setting the water inlet flow meter (9); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); internal reflux liquid, inlet water and O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.4, internal reflux, water inflow and O2Biochemical reaction to produce N2And the remainder of O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10) and setting the water inlet flow meter (9); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); opening a gas production valve (17), and arranging an aeration flowmeter (22); internal reflux liquid, inlet water and O2Biochemical reaction to produce N2And the remainder of O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing.
S1, the switching adjustment of the water inlet valve (11) and the water inlet valve (12) can flexibly realize the participation of inlet water in the jet aeration oxygenation and flow state shearing regulation and control processes on the premise of meeting the requirement of inlet water load;
s3, N generated by biochemical reaction can be adjusted by opening and closing the gas generating valve (17) and the gas generating valve (16)2And the remainder of O2Introducing jet aerationThe process is participated in the regulation and control of fluid state shearing;
said S5, aerating the gas source (O) by a jet2With biochemical reaction to produce N2And the remainder of O2) The flexible combined regulation and control of the jet aeration water source (raw water and internal reflux) meets the strict flow state shearing condition and the accurate DO control condition required by the formation and the maintenance of the stable activity of the one-stage EGSB anaerobic ammonia oxidation granular sludge.
Compared with the existing EGSB anaerobic ammonia oxidation device, the device has the following advantages:
(1) aeration of gas source (O) by jets2With biochemical reaction to produce N2And the remainder of O2) The flexible combined regulation and control of jet aeration water sources (raw water and internal reflux) meet the strict flow state shearing condition and the accurate DO control condition required by the formation and the maintenance of the stable activity of the one-stage EGSB anaerobic ammonia oxidation granular sludge;
(2) the jet aeration power source is an internal reflux system, and aeration equipment is not required to be added, so that the equipment investment and energy consumption are saved;
(3) n produced by biochemical reaction2And the remainder of O2Can be used as a jet aeration air source to realize comprehensive utilization of resources;
(4) the jet aeration air quantity and the gas combination proportion can be flexibly adjusted, and O2The gas quantity is easier to control accurately, and the accurate supply of the oxygen charging quantity is realized.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention.
FIG. 2 is a schematic view of the apparatus of the present invention 1, a schematic view of a jet aerator (7).
In the figure: 1. the device comprises a device main body, 2, a three-phase separator, 3, an internal reflux valve, 4, an internal reflux pipeline, 5, an internal reflux flowmeter, 6, an internal reflux pump, 7, a jet aerator, 8, a water inlet tank, 9, a water inlet flowmeter, 10, a water inlet pump, 11, a water inlet valve, 12, a water inlet valve, 13, a perforated water distributor, 14, a tooth-shaped overflow weir, 15, a U-shaped water outlet, 16, a gas production valve, 17, a gas production valve, 18, an aeration pipeline, 19, an oxygen generator, 20, an oxygen valve, 21, an oxygen flowmeter, 22, an aeration flowmeter, 23, an aeration pipeline reducer, 24, an online DO electrode, 25 and a reactor emptying valve.
Detailed Description
An embodiment of the present invention will be described below with reference to fig. 1.
A one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration is shown in figures 1 and 2.
The effective height-diameter ratio of the device main body (1) is 10;
the volume of the three-phase separator (2) is 18% of the effective volume of the device main body (1), an inverted cone hopper form is adopted, and the distance between the inverted cone hopper and the side wall of the reactor is 8 mm;
the tooth-shaped angle of the tooth-shaped overflow weir (14) is 90 degrees, and the tooth-shaped height is 60 mm;
the tail end of the jet aerator (7) adopts a sand core aeration disc, and the particle size range of bubbles is 0.5-1.0 mm;
a one-section type EGSB anaerobic ammonia oxidation device adopting jet aeration comprises the following implementation operation steps:
s1 water inlet operation: closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10), aerating and oxygenating raw water by the jet aerator (7), and then entering the device main body (1);
s2 reflux operation: opening an internal reflux valve (3), starting an internal reflux pump (6), setting the flow rate through an internal reflux flowmeter (5), feeding reflux liquid into a jet aerator (7), aerating and oxygenating, and then feeding the reflux liquid into the device main body (1);
s3 purge operation: the gas production valve (16) is opened, the gas production valve (17) is opened, and the biochemical reaction generates N2And the remainder of O2Partial emptying, partial participation in jet aeration, and regulation and control through an aeration flow meter (22);
s4 oxygen supply operation: opening the oxygen valve (20), starting the oxygen generator (19), setting the oxygen flow through the oxygen flow meter (21) to generate O2N generated by biochemical reaction and entering an aeration pipeline (18)2And the remainder of O2Mixing, and introducing into a jet aerator (7) for aeration;
s5 jet aeration operation: opening the internal reflux valve (3), starting the internal reflux pump (6), settingAn internal reflux flowmeter (5); closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10) and setting the water inlet flow meter (9); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); opening a gas production valve (16), opening a gas production valve (17), and arranging an aeration flowmeter (22); internal reflux liquid, inlet water and O2N produced by biochemical reaction2And the remainder of O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing.
Example 1
(1) Starting domestication: inoculating floccule anaerobic ammonia oxidation sludge into a reactor, wherein the inoculation concentration is 10g/L and the water inlet NH is4 +Controlling the N concentration at 50-150mg/L, controlling the pH of inlet water at 7.5-7.8, and simultaneously adding trace elements and nutrient salts, wherein the specific formula is as follows:
TABLE 1 formulation of trace elements and nutrient salts
The water inlet and the internal reflux liquid enter the device main body (1) through the jet aerator (7), the reflux ratio is 200-300%, and the HRT of the reactor is 6-8 h;
n is generated by partial biochemical reaction by adjusting the opening of the gas generating valve (16) and the gas generating valve (17)2And the remainder of O2Into an aeration line (18) according to O2Utilization efficiency and NH4 +Removal of-N, N2With the remainder of O2The volume ratio is 1: 3-4;
opening oxygen valve (20), starting oxygen generator (19), controlling effective utilization of O by oxygen flowmeter (21) and aeration flowmeter (22)2And NH4 +The mass ratio of-N to N is 1.8-2.2: 1;
under the acclimation working condition, NH is carried out after 70-100d operation4 +The removal rate of N reaches more than 90 percent, the concentration of the anaerobic ammonia oxidation sludge is increased to 15g/L, and 1-2mm granular sludge is formed.
(2) And (3) stable operation: on the basis of successful acclimatization starting, feeding water NH4 +-N concentration controlAt 200-300mg/L, the pH value of inlet water is controlled to be 7.5-7.8, and the adding concentration of trace elements and nutrient salts is unchanged; the reflux ratio is 300-400%, and the HRT of the reactor is 3-4 h; the same applies to the internal reflux liquid, the inlet water and the O2N produced by biochemical reaction2And the remainder of O2Jet aerator to maintain effective use of O2And NH4 +The mass ratio of-N to N is 1.8-2.2: 1; NH (NH)4 +The removal rate of-N is maintained to be more than 90%, and the proportion and the particle size of the anaerobic ammonia oxidation granular sludge are both obviously improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that other modifications and variations can be made without departing from the main structure and principle of the invention, and these modifications and variations are considered to be within the scope of the present invention.
Claims (10)
1. The utility model provides an adopt a segmentation EGSB anammox device of efflux aeration which characterized in that: the device comprises a device main body (1), a three-phase separator (2), an internal reflux valve (3), an internal reflux pipeline (4), an internal reflux flow meter (5), an internal reflux pump (6), a jet aerator (7), a water inlet tank (8), a water inlet flow meter (9), a water inlet pump (10), a water inlet valve (11), a water inlet valve (12), a perforated water distributor (13), a tooth-shaped overflow weir (14), a U-shaped water outlet (15), a gas generating valve (16), a gas generating valve (17), an aeration pipeline (18), an oxygen generator (19), an oxygen valve (20), an oxygen flow meter (21), an aeration flow meter (22), an aeration pipeline reducer (23), an online DO electrode (24) and a reactor emptying valve (25);
the upper part of the device main body (1) is provided with a three-phase separator (2); the lower part of the device main body (1) is provided with a jet aerator (7); the jet aerator (7) is connected with the internal reflux pipeline (4), the aeration pipeline (18) and the water inlet valve (11); the water inlet valve (11) is connected with a perforated water distributor (13); the reactor emptying valve (25) is positioned at the lowest part of the device main body (1); a tooth-shaped overflow weir (14) is arranged above the three-phase separator (2); the internal reflux system is formed by the internal reflux valve (3), an internal reflux pipeline (4), an internal reflux flowmeter (5) and an internal reflux pump (6); the water inlet tank (8), the water inlet flow meter (9), the water inlet pump (10), the water inlet valve (11) and the water inlet valve (12) form a water inlet system together;
the tooth-shaped angle of the tooth-shaped overflow weir (14) is 90 degrees, the tooth-shaped height is 50-80mm, and the tooth-shaped overflow weir (14) is connected with the U-shaped water outlet (15) to jointly realize the drainage function;
the top of the three-phase separator (2) is provided with a gas production valve A (16) and a gas production valve B (17), and the gas production valve A (17) is connected with an aeration pipeline (18); an aeration flowmeter (22) and an aeration pipeline reducing port (23) are arranged on the aeration pipeline (18);
the oxygen generator (19) is connected with an oxygen valve (20) and an oxygen flow meter (21) and enters an aeration pipeline (18); the wire DO electrode (24) is provided at an intermediate position of the apparatus main body (1).
2. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the aperture range of the perforated water distributor (13) is 3-6 mm.
3. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the effective height-diameter ratio of the device main body (1) is 5-10.
4. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the volume of the three-phase separator (2) is 15-20% of the effective volume of the device main body (1), and the three-phase separator adopts an inverted cone bucket or inclined plate form.
5. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the oxygen purity of the oxygen generator (19) is more than 90 percent.
6. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the tail end of the jet aerator (7) is provided with a sand core aeration disc, a ceramic aeration disc, a rubber aeration disc or a membrane aeration disc, and the particle size range of bubbles after aeration of the jet aerator (7) is 0.1-1.0 mm.
7. The one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration according to claim 1, which is characterized in that: the specific operation steps are as follows:
s1 water inlet operation: the raw water is pumped into device main part (1) in case (8) will intake in intake pump (10), carries out flow control through intake flowmeter (9) and sets up, and the mode that raw water got into device main part (1) divide into two kinds of operations:
s2 reflux operation: opening an internal reflux valve (3), starting an internal reflux pump (6), setting the flow rate through an internal reflux flowmeter (5), feeding reflux liquid into a jet aerator (7), aerating and oxygenating, and then feeding the reflux liquid into the device main body (1);
s3 purge operation: production of N by anammox reaction2And the remainder of O2The specific exhaust mode is divided into three modes;
s4 oxygen supply operation: opening the oxygen valve (20), starting the oxygen generator (19), setting the oxygen flow through the oxygen flow meter (21) to generate O2N generated by biochemical reaction and entering an aeration pipeline (18)2And the remainder of O2Mixing, and introducing into a jet aerator (7) for aeration;
s5 jet aeration operation: the jet aeration gas source is O2Biochemical reaction to produce N2And the remainder of O2The jet aeration water source is water inlet and inner reflux liquid, and is regulated and controlled according to different air sources and water sources.
8. The device for the one-stage anaerobic ammonium oxidation of EGSB by jet aeration according to claim 7, which is characterized in that: s2 includes the following steps that S2.1, a water inlet valve (12) is closed, a water inlet valve (11) is opened, and raw water enters the device main body (1) through a perforated water distributor (13);
s2.2, closing the water inlet valve (11), opening the water inlet valve (12), aerating and oxygenating the raw water by the jet aerator (7), and then feeding the raw water into the device main body (1).
9. According to claimThe one-stage EGSB anaerobic ammonia oxidation device adopting jet aeration, which is characterized in that: step S3 includes steps of S3.1, closing the gas generating valve (17), opening the gas generating valve (16) to generate N2And the remainder of O2Discharge to the air;
s3.2, closing the gas production valve (16), opening the gas production valve (17) and generating N2And the remainder of O2Enters an aeration pipeline (18) for jet aeration to participate in flow state control;
s3.3, opening the gas production valve (16), opening the gas production valve (17) and generating N2And the remainder of O2Part of the mixture is emptied and part of the mixture participates in jet aeration.
10. The device for the one-stage anaerobic ammonium oxidation of EGSB by jet aeration according to claim 7, which is characterized in that: step S5 includes the following, S5.1, internal reflux and O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); opening oxygen valve (20), starting oxygen generator (19), setting oxygen flow rate through oxygen flowmeter (21), internal reflux liquid and O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.2, internal reflux and O2Biochemical reaction to produce N2And the remainder of O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); opening a gas production valve (17), and arranging an aeration flowmeter (22); internal reflux liquid and O2Biochemical reaction to produce N2And the remainder of O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.3, internal reflux, water inflow and O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10) and setting the water inlet flow meter (9); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21);internal reflux liquid, inlet water and O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing;
s5.4, internal reflux, water inflow and O2Biochemical reaction to produce N2And the remainder of O2Jet aeration: opening an internal reflux valve (3), starting an internal reflux pump (6), and setting an internal reflux flowmeter (5); closing the water inlet valve (11), opening the water inlet valve (12), starting the water inlet pump (10) and setting the water inlet flow meter (9); opening an oxygen valve (20), starting an oxygen generator (19), and setting the oxygen flow through an oxygen flow meter (21); opening a gas production valve (17), and arranging an aeration flowmeter (22); internal reflux liquid, inlet water and O2Biochemical reaction to produce N2And the remainder of O2Enters a jet aerator (7) for aeration and oxygen supply and flow state shearing.
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