CN219771880U - Biological synchronous denitrification anoxic tank subsystem supplemented with high-quality carbon source - Google Patents
Biological synchronous denitrification anoxic tank subsystem supplemented with high-quality carbon source Download PDFInfo
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- CN219771880U CN219771880U CN202223439157.3U CN202223439157U CN219771880U CN 219771880 U CN219771880 U CN 219771880U CN 202223439157 U CN202223439157 U CN 202223439157U CN 219771880 U CN219771880 U CN 219771880U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 85
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- 238000010992 reflux Methods 0.000 claims abstract description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 45
- 239000001301 oxygen Substances 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 25
- 229920002635 polyurethane Polymers 0.000 claims abstract description 17
- 239000004814 polyurethane Substances 0.000 claims abstract description 17
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 17
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 87
- 230000001546 nitrifying effect Effects 0.000 claims description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 239000010865 sewage Substances 0.000 abstract description 10
- 238000002407 reforming Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000005273 aeration Methods 0.000 description 7
- 239000011550 stock solution Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 241001148470 aerobic bacillus Species 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to the technical field of sewage treatment, upgrading and reforming, in particular to a biological synchronous denitrification anoxic tank subsystem for supplementing a high-quality carbon source, which comprises a high-quality carbon source solution tank, wherein the bottom end of one side of the high-quality carbon source solution tank is provided with a solution outlet pipe; the rare earth modified polyurethane filler is arranged in the anoxic tank to realize synchronous denitrification; the low dissolved oxygen reflux ratio is arranged at the rear part of the aerobic tank, so that a large amount of high dissolved oxygen can be prevented from entering the anoxic tank, and the denitrification effect is prevented from being influenced.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, upgrading and transformation, in particular to a biological synchronous denitrification and anoxic tank subsystem supplemented with high-quality carbon sources.
Background
Through retrieval, chinese patent number CN212334940U discloses an integrated sewage treatment device for deep denitrification and dephosphorization, which comprises a regulating tank with a lifting pump, a lifting well and an integrated equipment biochemical system on one side, wherein the integrated equipment biochemical system sequentially comprises a pre-denitrification tank, an anaerobic tank, an anoxic tank, an aerobic sedimentation tank, a coagulation tank and a biological filter tank from left to right, each tank is separated by a partition plate, a grid for water circulation is arranged on the partition plate, one side of the regulating tank flows into the regulating tank only through the lifting well, a basket fine grid is arranged at a water inlet of the lifting well so as to intercept fine suspended matters and particulate matters, and the other side of the regulating tank directly inserts water into the pre-denitrification tank, the anaerobic tank and the anoxic tank respectively through pipelines with water inlets by the lifting pump.
The device has the characteristics of simple structure, small volume, remote supervision, convenient operation and maintenance and the like, but is suitable for a sewage treatment plant with serious shortage of carbon sources in the market, raw sewage is well mixed after entering an anoxic tank, a follow-up biological system is entered under the action of integral plug flow, if the carbon sources are not accurately added and efficiently utilized, the waste of the carbon sources can be caused, the design of internal reflux ratio is overlarge, and the actual residence time of raw water in the anoxic tank is easily caused to be insufficient.
Disclosure of Invention
The utility model aims to provide a biological synchronous denitrification anoxic tank subsystem supplemented with a high-quality carbon source so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a make-up high-quality carbon source biological synchronous denitrification anoxic tank subsystem, includes high-quality carbon source solution jar, high-quality carbon source solution jar wherein one side bottom is equipped with the solution drain pipe, the solution drain pipe is kept away from the one end connection of high-quality carbon source solution jar is equipped with high-quality carbon source feed liquor pipe, the one end that high-quality carbon source feed liquor pipe kept away from the solution drain pipe is equipped with the anoxic tank main part, be equipped with rare earth modified polyurethane filler in the middle of the inside of anoxic tank main part, the anoxic tank main part is kept away from the one end of high-quality carbon source feed liquor pipe and is located the top of rare earth modified polyurethane filler is equipped with the connecting pipe, the one end that the connecting pipe kept away from the anoxic tank main part is equipped with the aerobic tank, the one side that the aerobic tank kept away from the connecting pipe is equipped with low dissolved oxygen reflux district, the bottom of low dissolved oxygen reflux district is equipped with the aeration hose, the one end that the aeration hose kept away from the aerobic tank is equipped with the backwash pump main part, the backwash pump main part be equipped with nitrifying liquid backwash pump liquid pipeline, the top of low dissolved oxygen reflux district and nitrifying liquid backwash pump pipeline are connected with nitrifying liquid backwash liquid pipeline and are equipped with nitrifying liquid reflux valve one side.
As a preferable scheme of the utility model, one end of the nitrifying liquid reflux pipe, which is far away from the nitrifying liquid reflux pump outlet pipeline, is connected with the anoxic tank main body, and a nitrifying liquid reflux inlet pipe is arranged at the joint of the anoxic tank main body and the nitrifying liquid reflux pipe.
As a preferable scheme of the utility model, the top end of the rare earth modified polyurethane filler is provided with a suspended upper steel wire mesh, and the bottom end of the rare earth modified polyurethane filler is provided with a suspended lower steel wire mesh.
As a preferable scheme of the utility model, the two sides of the bottom end of the anoxic tank main body are provided with the flow pushing devices.
As a preferable scheme of the utility model, a drain pipe and a control valve are arranged at one end of the high-quality carbon source solution tank far away from the solution outlet pipe, the top end of the high-quality carbon source solution tank is triangular, an overflow pipe is arranged at one side of the top end of the high-quality carbon source solution tank near the drain pipe and the control valve, a carbon source stock solution feed inlet is arranged at one side of the top end of the high-quality carbon source solution tank near the overflow pipe, a water inlet pipe and the control valve are arranged at one side of the carbon source stock solution feed inlet far away from the overflow pipe, and a stirrer is arranged in the high-quality carbon source solution tank.
As a preferable scheme of the utility model, a metering pump liquid inlet pipe and a control valve are arranged on one side of the solution liquid outlet pipe, which is far away from the high-quality carbon source solution tank, a metering pump liquid outlet pipe and a control valve are arranged on one side of the high-quality carbon source liquid inlet pipe, which is far away from the anoxic tank main body, and a metering pump main body is arranged at the joint of the metering pump liquid outlet pipe and the control valve and the metering pump liquid inlet pipe and the control valve.
Compared with the prior art, aiming at the sewage treatment plant with serious shortage of the carbon source in the market, the raw sewage is well mixed completely after entering the anoxic tank, and enters the subsequent biological system under the action of integral plug flow, if the carbon source is not accurately added and efficiently utilized, the waste of the carbon source can be caused, and the problem of insufficient actual residence time of the raw water in the anoxic tank is easily caused due to the overlarge design of the internal reflux ratio, the utility model has the beneficial effects that: (1) the CODcr of the effluent treated by the original A/O process has poor biodegradability, and the effluent is used as nitrifying liquid to flow back to an anoxic tank to have poor denitrification effect, and the addition of a high-quality carbon source with good biodegradability is necessary for further improving the total nitrogen removal rate of sewage; (2) the rare earth modified polyurethane filler is arranged in the anoxic tank to realize synchronous denitrification; (3) the low dissolved oxygen reflux ratio is arranged at the rear part of the aerobic tank, so that a large amount of high dissolved oxygen can be prevented from entering the anoxic tank, and the denitrification effect is prevented from being influenced.
Drawings
FIG. 1 is a plan view of the overall structure of the present utility model;
FIG. 2 is a plan view of the structure of the high-quality carbon source solution tank of the utility model;
FIG. 3 is a plan view showing the structure of the anoxic tank body and the aerobic tank of the present utility model.
In the figure: 1. a high-quality carbon source solution tank; 101. a stirrer; 102. a carbon source stock solution feed inlet; 103. a water inlet pipe and a control valve; 104. a solution outlet pipe; 105. a metering pump liquid inlet pipe and a control valve; 106. a metering pump body; 107. a metering pump liquid outlet pipe and a control valve; 108. an overflow pipe; 109. a blow-down pipe and a control valve; 2. an anoxic tank body; 201. a high-quality carbon source liquid inlet pipe; 202. the nitrifying liquid flows back to the liquid inlet pipe; 203. a flow impeller; 204. suspending upper steel wire mesh; 205. a suspended lower steel wire mesh; 206. rare earth modified polyurethane filler; 207. a connecting pipe; 3. an aerobic tank; 301. a low dissolved oxygen reflux zone; 3011. an aeration hose; 3012. a reflux pump body; 3013. the nitrifying liquid flows back to the liquid outlet pipeline; 3014. a nitrifying liquid return pipe; 3015. a liquid outlet pipeline and a control valve.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a make-up high-quality carbon source biological synchronous denitrification anoxic tank subsystem, includes high-quality carbon source solution jar 1, high-quality carbon source solution jar 1 one side bottom is equipped with solution drain pipe 104, solution drain pipe 104 is kept away from the one end connection of high-quality carbon source solution jar 1 is equipped with high-quality carbon source feed liquor pipe 201, high-quality carbon source feed liquor pipe 201 is kept away from the one end of solution drain pipe 104 is equipped with anoxic tank main part 2, be equipped with rare earth modified polyurethane filler 206 in the middle of the inside of anoxic tank main part 2, anoxic tank main part 2 is kept away from one end of high-quality carbon source feed liquor pipe 201 and be located rare earth modified polyurethane filler 206 the top is equipped with connecting pipe 207, connecting pipe 207 is kept away from one end of anoxic tank main part 2 is equipped with aerobic tank 3, one side that aerobic tank 3 is kept away from connecting pipe 207 is equipped with low dissolved oxygen reflux zone 301, the bottom of low dissolved oxygen reflux zone 301 is equipped with aeration hose 3011, the one end that aeration hose 3011 kept away from of aerobic tank is equipped with backwash pump main part 3012, backwash pump main part 2 be equipped with the bottom of the pipeline 3014 and be equipped with nitrifying reflux pump 3014 and nitrify the bottom end of pipeline 3014 and nitrify the reflux pipeline 3014 and be equipped with nitrifying reflux pipeline.
In this embodiment, a nitrifying liquid backflow liquid inlet pipe 202 is provided at the front end of the anoxic tank body 2, and a backflow pump body 3012 provided at the bottom end of a low-dissolved oxygen backflow zone 3011 provided at the rear of the aerobic tank 3 pumps out low-dissolved oxygen nitrifying liquid, and the nitrifying liquid backflow liquid enters the anoxic tank body 2 through a nitrifying liquid backflow pump liquid outlet pipe 3013, a nitrifying liquid backflow pipe 3014, and the nitrifying liquid backflow liquid inlet pipe 202 connected thereto. The nitrifying liquid reflux ratio r=2. The reflux ratio can increase the number of microorganisms in the tank, thereby improving the biological denitrification effect without affecting the residence time of the anoxic tank body 2.
Rare earth modified polyurethane filler 206 is arranged in a compartment formed by the suspended upper steel wire mesh 204 and the suspended lower steel wire mesh 205, the filler has a specification shape of a 20mm cube, and the dosing rate is 40%. The modified filler has changeable pores, large specific surface area and high porosity, is easy to form a film, ensures smooth mass transfer inside and outside the filler, and has good growth environment for different types of microorganisms. When in operation, the external biomembrane of the filler is yellow brown, the middle part is black brown, and the inside is black. This is due to the gradient in dissolved oxygen concentration created by the limited diffusion of oxygen. The dissolved oxygen concentration of the biomembrane is attenuated, and the microorganisms attached to the biomembrane are aerobic bacteria, anoxic bacteria in the middle and anaerobic bacteria in the inside, so that an environment in which the aerobic bacteria, anoxic bacteria and anaerobic bacteria grow is formed, and the monomer filling is a miniature composite bioreactor, so that synchronous nitrification-denitrification is realized when the repeated microbial reactions of the aerobic bacteria, anoxic bacteria and anaerobic bacteria are performed. 0.5-1.0mg/L of dissolved oxygen required for microbial reaction in the anoxic tank is provided by the impeller 203 arranged diagonally.
1-3, one end of the nitrifying liquid return pipe 3014, which is far away from the nitrifying liquid return pump outlet pipe 3013, is connected with the anoxic tank main body 2, a nitrifying liquid return inlet pipe 202 is arranged at the joint of the anoxic tank main body 2 and the nitrifying liquid return pipe 3014, a suspended upper steel wire mesh 204 is arranged at the top end of the rare earth modified polyurethane filler 206, a suspended lower steel wire mesh 205 is arranged at the bottom end of the rare earth modified polyurethane filler 206, and flow pushers 203 are arranged at two sides of the bottom end of the anoxic tank main body 2.
In this embodiment, a low dissolved oxygen reflux zone 301 is provided at the rear of the aerobic tank 3, and is Chi Rongzhan a/5 of the aerobic tank. At the bottom of the low dissolved oxygen reflux zone 301 is provided an aeration hose 3011 with dissolved oxygen controlled at 0.5-1.0mg/L. The nitrifying liquid with low dissolved oxygen can overcome the defects that the nitrifying liquid reflux point of the original sewage treatment plant is arranged at the tail end of the aerobic tank 3, in order to ensure the concentration of the dissolved oxygen of the effluent and avoid the serious floating mud phenomenon of the secondary sedimentation tank, the tail end of the aerobic tank 3 always keeps higher concentration of the dissolved oxygen, so that a great amount of unavoidable high dissolved oxygen enters the anoxic tank main body 2, and organic matters in raw water are firstly utilized to influence the denitrification effect. By arranging the reflux pump main body 3012, the nitrifying liquid reflux pump liquid outlet pipe 3013, the nitrifying liquid reflux pipe 3014 and the nitrifying liquid reflux liquid inlet pipe 202 connected with the reflux pump main body 3012, which are arranged at the bottom of the tail end of the low dissolved oxygen reflux zone 301, nitrifying liquid with low dissolved oxygen is refluxed into the anoxic tank main body 2 at the reflux ratio of r=2, and better carbon source utilization effect and denitrification effect of the anoxic tank main body 2 can be ensured.
Referring to fig. 1-3, a drain pipe and a control valve 109 are disposed at one end of the high-quality carbon source solution tank 1, which is far away from the solution outlet pipe 104, a top end of the high-quality carbon source solution tank 1 is triangular, an overflow pipe 108 is disposed at one side of the top end of the high-quality carbon source solution tank 1, which is close to the drain pipe and the control valve 109, a carbon source stock solution inlet 102 is disposed at one side of the top end of the high-quality carbon source solution tank 1, which is close to the overflow pipe 108, a water inlet pipe and a control valve 103 are disposed at one side of the carbon source stock solution inlet 102, which is far away from the overflow pipe 108, a stirrer 101 is disposed in the high-quality carbon source solution tank 1, a metering pump liquid inlet pipe and a control valve 105 are disposed at one side of the high-quality carbon source liquid inlet pipe 201, which is far away from the anoxic tank main body 2, a main body 106 is disposed at a junction of the metering pump liquid outlet pipe and the control valve 107 and the metering pump liquid inlet pipe and the control valve 105.
In this embodiment, the high-quality carbon source is a plant carbon source (ZTN), the high-quality carbon source enters the high-quality carbon source solution tank 1 from the carbon source stock solution feed inlet 102, the water inlet pipe and the control valve 103 are opened, the water is injected into the tank according to the proportioning water amount of the proportioning concentration, and the stirrer 101 is started to stir and mix for 8 minutes, so as to obtain the prepared finished product solution; the concentration of the finished product solution is determined according to the actual water quality and quantity of the user; the prepared finished solution enters the anoxic tank 2 through the solution outlet pipe 104, the metering pump liquid inlet pipe and control valve 105, the metering pump main body 106, the metering pump liquid outlet pipe and control valve 107 and the high-quality carbon source liquid inlet pipe 201 connected with the solution outlet pipe.
The working flow of the utility model is as follows: the high-quality carbon source is plant carbon source (ZTN), the high-quality carbon source enters the high-quality carbon source solution tank 1 from the carbon source stock solution feed inlet 102, the water inlet pipe and the control valve 103 are opened, the water is injected into the tank according to the proportioning water quantity of proportioning concentration, and the stirrer 101 is started to stir and mix for 8 minutes, so that the prepared finished product solution is obtained; the concentration of the finished product solution is determined according to the actual water quality and quantity of the user; the prepared finished solution enters the anoxic tank 2 through the solution outlet pipe 104, the metering pump liquid inlet pipe and control valve 105, the metering pump main body 106, the metering pump liquid outlet pipe and control valve 107 and the high-quality carbon source liquid inlet pipe 201 connected with the solution outlet pipe.
The front end tank wall of the anoxic tank main body 2 is provided with a nitrifying liquid backflow liquid inlet pipe 202, a backflow pump main body 3012 arranged at the tail end of the bottom of a low-dissolved oxygen backflow zone 3011 arranged at the rear part of the aerobic tank 3 pumps low-dissolved oxygen nitrifying liquid, and the nitrifying liquid is introduced into the anoxic tank main body 2 through a nitrifying liquid backflow pump liquid outlet pipe 3013, a nitrifying liquid backflow pipe 3014 and the nitrifying liquid backflow liquid inlet pipe 202 connected with the nitrifying liquid backflow pump main body 3014. The nitrifying liquid reflux ratio r=2. The reflux ratio can increase the number of microorganisms in the tank, thereby improving the biological denitrification effect without affecting the residence time of the anoxic tank body 2.
Rare earth modified polyurethane filler 206 is arranged in a compartment formed by the suspended upper steel wire mesh 204 and the suspended lower steel wire mesh 205, the filler has a specification shape of a 20mm cube, and the dosing rate is 40%. The modified filler has changeable pores, large specific surface area and high porosity, is easy to form a film, ensures smooth mass transfer inside and outside the filler, and has good growth environment for different types of microorganisms. When in operation, the external biomembrane of the filler is yellow brown, the middle part is black brown, and the inside is black. This is due to the gradient in dissolved oxygen concentration created by the limited diffusion of oxygen. The dissolved oxygen concentration of the biomembrane is attenuated, and the microorganisms attached to the biomembrane are aerobic bacteria, anoxic bacteria in the middle and anaerobic bacteria in the inside, so that an environment in which the aerobic bacteria, anoxic bacteria and anaerobic bacteria grow is formed, and the monomer filling is a miniature composite bioreactor, so that synchronous nitrification-denitrification is realized when the repeated microbial reactions of the aerobic bacteria, anoxic bacteria and anaerobic bacteria are performed. 0.5-1.0mg/L of dissolved oxygen required for microbial reaction in the anoxic tank is provided by the impeller 203 arranged diagonally.
A low dissolved oxygen reflux zone 301 is arranged at the rear part of the aerobic tank 3, and the ratio of the low dissolved oxygen reflux zone to the low dissolved oxygen reflux zone is Chi Rongzhan is 1/5 of that of the aerobic tank. At the bottom of the low dissolved oxygen reflux zone 301 is provided an aeration hose 3011 with dissolved oxygen controlled at 0.5-1.0mg/L. The nitrifying liquid with low dissolved oxygen can overcome the defects that the nitrifying liquid reflux point of the original sewage treatment plant is arranged at the tail end of the aerobic tank 3, in order to ensure the concentration of the dissolved oxygen of the effluent and avoid the serious floating mud phenomenon of the secondary sedimentation tank, the tail end of the aerobic tank 3 always keeps higher concentration of the dissolved oxygen, so that a great amount of unavoidable high dissolved oxygen enters the anoxic tank main body 2, and organic matters in raw water are firstly utilized to influence the denitrification effect. By arranging the reflux pump main body 3012, the nitrifying liquid reflux pump liquid outlet pipe 3013, the nitrifying liquid reflux pipe 3014 and the nitrifying liquid reflux liquid inlet pipe 202 connected with the reflux pump main body 3012, which are arranged at the bottom of the tail end of the low dissolved oxygen reflux zone 301, nitrifying liquid with low dissolved oxygen is refluxed into the anoxic tank main body 2 at the reflux ratio of r=2, and better carbon source utilization effect and denitrification effect of the anoxic tank main body 2 can be ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The biological synchronous denitrification anoxic tank subsystem for supplementing high-quality carbon sources comprises a high-quality carbon source solution tank (1), and is characterized in that: the utility model discloses a nitrifying and nitrifying device for the high-quality carbon source solution tank, wherein one side bottom of high-quality carbon source solution tank (1) is equipped with solution drain pipe (104), solution drain pipe (104) are kept away from the one end connection of high-quality carbon source solution tank (1) is equipped with high-quality carbon source feed liquor pipe (201), one end that high-quality carbon source feed liquor pipe (201) were kept away from solution drain pipe (104) is equipped with anoxic tank main part (2), be equipped with rare earth modified polyurethane filler (206) in the middle of anoxic tank main part (2) inside, anoxic tank main part (2) are kept away from one end of high-quality carbon source feed liquor pipe (201) and are located the top of rare earth modified polyurethane filler (206) is equipped with connecting pipe (207), one end that connecting pipe (207) are kept away from anoxic tank main part (2) is equipped with aerobic tank (3), one side that aerobic tank (3) are kept away from connecting pipe (207) is equipped with low dissolved oxygen reflux area (301), the bottom of low dissolved oxygen reflux area (3011), one end that aerobic tank (301) were kept away from aerobic tank (3) is equipped with reverse flow pump main part (3012), pump (3011) are equipped with nitrifying and nitrifying pipeline (3014) are equipped with reverse flow pipe (301), and a liquid outlet pipeline and a control valve (3015) are arranged at one side of the low-dissolved oxygen reflux zone (301) close to the nitrifying liquid reflux pipe (3014).
2. The biological synchronous denitrification and anoxic tank subsystem supplemented with a high-quality carbon source according to claim 1, wherein the biological synchronous denitrification and anoxic tank subsystem is characterized in that: one end of the nitrifying liquid return pipe (3014), which is far away from the nitrifying liquid return pump outlet pipeline (3013), is connected with the anoxic tank main body (2), and a nitrifying liquid return inlet pipe (202) is arranged at the joint of the anoxic tank main body (2) and the nitrifying liquid return pipe (3014).
3. The biological synchronous denitrification and anoxic tank subsystem supplemented with a high-quality carbon source according to claim 1, wherein the biological synchronous denitrification and anoxic tank subsystem is characterized in that: the top of the rare earth modified polyurethane filler (206) is provided with a suspended upper steel wire mesh (204), and the bottom of the rare earth modified polyurethane filler (206) is provided with a suspended lower steel wire mesh (205).
4. The biological synchronous denitrification and anoxic tank subsystem supplemented with a high-quality carbon source according to claim 1, wherein the biological synchronous denitrification and anoxic tank subsystem is characterized in that: both sides of the bottom end of the anoxic tank main body (2) are provided with flow pushing devices (203).
5. The biological synchronous denitrification and anoxic tank subsystem supplemented with a high-quality carbon source according to claim 1, wherein the biological synchronous denitrification and anoxic tank subsystem is characterized in that: the utility model discloses a high-quality carbon source solution jar (1) is kept away from the one end of solution drain pipe (104) is equipped with blow off pipe and control valve (109), the top of high-quality carbon source solution jar (1) is triangle-shaped and sets up, the top of high-quality carbon source solution jar (1) is close to one side of blow off pipe and control valve (109) is equipped with overflow pipe (108), the top of high-quality carbon source solution jar (1) is close to one side of overflow pipe (108) is equipped with carbon source stoste feed inlet (102), carbon source stoste feed inlet (102) are kept away from one side of overflow pipe (108) is equipped with inlet tube and control valve (103), be equipped with mixer (101) in high-quality carbon source solution jar (1).
6. The biological synchronous denitrification and anoxic tank subsystem supplemented with a high-quality carbon source according to claim 1, wherein the biological synchronous denitrification and anoxic tank subsystem is characterized in that: one side of the solution drain pipe (104) far away from the high-quality carbon source solution tank (1) is provided with a metering pump liquid inlet pipe and a control valve (105), one side of the high-quality carbon source liquid inlet pipe (201) far away from the anoxic tank main body (2) is provided with a metering pump drain pipe and a control valve (107), and a metering pump main body (106) is arranged at the joint of the metering pump drain pipe and the control valve (107) and the metering pump liquid inlet pipe and the control valve (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439157.3U CN219771880U (en) | 2022-12-22 | 2022-12-22 | Biological synchronous denitrification anoxic tank subsystem supplemented with high-quality carbon source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223439157.3U CN219771880U (en) | 2022-12-22 | 2022-12-22 | Biological synchronous denitrification anoxic tank subsystem supplemented with high-quality carbon source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219771880U true CN219771880U (en) | 2023-09-29 |
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ID=88102714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223439157.3U Active CN219771880U (en) | 2022-12-22 | 2022-12-22 | Biological synchronous denitrification anoxic tank subsystem supplemented with high-quality carbon source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219771880U (en) |
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2022
- 2022-12-22 CN CN202223439157.3U patent/CN219771880U/en active Active
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