CN110980936B

CN110980936B - Biological nitrogen and phosphorus removal device for HJDLZYS and application thereof

Info

Publication number: CN110980936B
Application number: CN201911287183.9A
Authority: CN
Inventors: 郑勇生; 郑言
Original assignee: Zhejiang Yongxu Environmental Engineering Co ltd
Current assignee: Zhejiang Yongxu Environmental Engineering Co ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2022-04-29
Anticipated expiration: 2039-12-14
Also published as: CN110980936A

Abstract

The invention discloses a biological nitrogen and phosphorus removal device for HJDLZYS and application thereof. Sewage is introduced into the reaction tank, flows into the HJDLZYS reaction tank together with return sludge mixed liquor, compressed air sucked by the reactor enters the underwater main body of the reactor together with high-concentration microorganisms under accurate control for granulation, forms primary dissolved air of mud, water, air and bacteria after being mixed in the tank body, then is incubated into HJDL granulated sludge with a special structure, and is sprayed out from the bottom of the reactor under pressure. The reactor makes mud, water and bacteria in the whole HJDLZYS pool body in a continuous motion state. The full-automatic nitrification and denitrification device realizes the full-coverage all-weather work without dead angles. Thereby improving the sludge granulation efficiency and further improving the wastewater treatment efficiency.

Description

Biological nitrogen and phosphorus removal device for HJDLZYS and application thereof

Technical Field

The invention relates to wastewater treatment, in particular to a biological nitrogen and phosphorus removal device for HJDLZYS and application thereof.

Background

Since the birth of the activated sludge process, biotechnology has been widely used for treating wastewater of various industries. And the appearance of the sludge granulation technology can overcome a plurality of problems in the traditional activated sludge process, such as large reactor volume, need of a subsequent secondary sedimentation tank for sludge sedimentation and backflow, low volume load, weak impact resistance, large residual sludge amount, easy sludge expansion and the like. However, the formation of sludge granules is very complicated by many factors, including microbial growth and decay, and substrate diffusion, which makes the sludge granulation process time-consuming and often takes several months. Therefore, how to improve the efficiency of sludge granulation is a big problem in the current research and development.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a biological nitrogen and phosphorus removal device for HJDLZYS, which can improve the sludge granulation efficiency and further improve the wastewater treatment efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a biological nitrogen and phosphorus removal device of HJDLZYS, includes grid, equalizing basin, reaction tank, two heavy ponds, install reactor group in the reaction tank, the reaction tank intussuseption is filled with the mixture, the mixture includes minified mud, microbial carrier and microbial inoculum, reactor group is including at least one among high-efficiency aerobic reactor, high-efficiency facultative reactor and the high-efficiency anaerobic reactor, high-efficiency aerobic reactor, high-efficiency facultative reactor and high-efficiency anaerobic reactor all include mounting bracket, the fixed mounting be equipped with the feed end on the mounting bracket with the discharge end jar body, locate the plug flow stirring subassembly of jar body feed end, locate jar body discharge end the air water shearing mixing assembly, the reaction tank bottom is connected with the circulating pipe that is used for circulating sludge, be equipped with the circulating pump on the circulating pipe, the circulating pump is the high-pressure pump, jar body feed end is connected with the inlet pipe that is used for connecting, inlet pipe one side is connected with the intake pipe, be equipped with the valve that is used for adjusting the intake pipe air input in the intake pipe.

By adopting the technical scheme, sewage is introduced into the reaction tank and flows into the HJDLZYS reaction tank together with return sludge mixed liquor, compressed air sucked by the reactor enters the underwater main body of the reactor together with high-concentration microorganisms under accurate control for granulation, primary dissolved air of mud, water, air and bacteria is formed under the action of the air-water shearing and mixing component, and then the sludge is incubated into HJDLZYS granulated sludge with a special structure and is pressurized and sprayed out from the bottom of the reactor. The reactor makes mud, water and bacteria in the whole HJDLZYS pool body in a continuous motion state. Meanwhile, the circulating pipe at the bottom of the HJDLZYS tank body pumps the existing microorganism carrier and microbial inoculum in the tank to the top end of the reactor, and the granulation process of the granulated sludge is continuously completed. Realizes the full-covering and all-weather operation without dead angle for nitrification and denitrification, and ensures that granulation sludge granulation is carried out completely. Thereby improving the sludge granulation efficiency and further improving the wastewater treatment efficiency.

The invention is further provided with: the utility model discloses a vortex tube shear mixing subassembly, including jar body, discharging pipe upper end intercommunication jar body and lower extreme, the stirring pipe is equipped with vortex tube, vortex tube intercommunication discharging pipe, vortex tube is equipped with a plurality of along discharging pipe circumference, vortex tube keeps away from discharging pipe one end and is buckled towards discharging pipe rotation direction, and all vortex tubes constitute air water shearing mixing subassembly.

Through adopting above-mentioned technical scheme, the silt that is drawn into in the reactor comes the discharging pipe department because of gravity reason after being stirred by plug flow stirring subassembly. Under the action of pressure, the sludge mixed liquid enters the turbulence pipe and is sprayed out. The recoil of the water pressure after the water is sprayed out can apply force to the turbulence pipe, so that the discharge pipe rotates relative to the tank body. Thereby the sludge mixed liquid is sprayed in a rotating way, and the sludge, water, gas and bacteria are mixed better. Thereby improving the granulation efficiency of the sludge.

The invention is further provided with: the plug flow stirring subassembly is including rotating the direction awl section of thick bamboo of connecting in the jar body and being used for driving direction awl section of thick bamboo pivoted driving piece, the osculum end of direction awl section of thick bamboo is just rotated towards the inlet pipe and is connected in jar body up end, the projection of feed pipe along vertical direction falls in direction awl section of thick bamboo, direction awl section of thick bamboo inner wall is equipped with the flight that is used for direction silt, jar body lower extreme is the throat setting, the discharging pipe is connected in the throat of the jar body.

Through adopting above-mentioned technical scheme, mud enters into the direction awl section of thick bamboo back, flows downwards along the flight, then jets outwards along the tangent line of direction awl section of thick bamboo macrostoma, hits the internal wall of jar of beating to make mud, water, gas, fungus by individual better scattering remixing. Thereby improving the granulation efficiency of the sludge.

The invention is further provided with: the inner cavity of the tank body is divided into a water storage area and a mixing area by the partition board, the plug flow stirring assembly is located in the mixing area, the inner wall of the mixing area is provided with a water-absorbing fiber layer, the partition board is provided with a plurality of through holes communicated with the water storage area and the mixing area, and the water storage area is connected with a water supply pipe used for supplying water to the water storage area.

Through adopting above-mentioned technical scheme, form the one deck water film through the hydroscopicity fibrous layer at the mixed zone inner wall to reduce the internal probability of mud residue in jar. Make inside mud, water, the fungus of whole HJDLZYS cell body be in the continuous motion state. Realizes the full-covering and all-weather operation without dead angle for nitrification and denitrification, and leads the granulation sludge granulation to be thorough.

The invention is further provided with: a plurality of dispersing rods used for scattering silt are uniformly distributed on the inner wall of the tank body, and the dispersing rods are arranged at the tips towards one end of the center of the tank body.

Through adopting above-mentioned technical scheme, on the mud of stirring subassembly ejection of compact is got rid of jar internal wall from pushing away to disperse mud, and then improve granular sludge settling property, be favorable to the enrichment in a large number of microorganism.

The invention aims to provide an A2O method modified by a HJDLZYS process.

the utility model provides a A2O method with HJDLZYS technology transformation, includes interconnect's anaerobism pond, oxygen deficiency pond, good oxygen pond and sedimentation tank in proper order, still includes reactor group, reactor group is including installing the high-efficiency anaerobic reactor in the anaerobism pond, installing the high-efficiency facultative reactor in the oxygen deficiency pond, installing the high-efficiency aerobic reactor in good oxygen pond, all be connected with the inlet tube on anaerobism pond and the oxygen deficiency pond, good oxygen pond middle part is connected with the back flow that is used for returning the nitrifying liquid to the oxygen deficiency pond, sedimentation tank goes out dirty mouthful and is connected with return sludge pipe and blow off pipe, anaerobism pond, oxygen deficiency pond, good oxygen pond all communicate with return sludge pipe.

Through adopting above-mentioned technical scheme, can carry the mark transformation to current town sewage factory, need not the civil engineering construction, can carry the waste water treatment efficiency of plateau waste water treatment production line. Also has higher economic value.

The invention aims to provide an oxidation ditch improved by using a HJDLZYS process.

the utility model provides an oxidation ditch with HJDLZYS technology transformation, is trapezoidal oxidation canal body, installs the inlet tube that changes the brush and connect the oxidation canal body and be used for supplying water for the oxidation canal body on the oxidation canal body including the section, this internal reactor group of installing of oxidation canal, oxidation canal body intussuseption is filled with the mixture, the oxidation canal body is connected with two heavy ponds, two heavy pond play dirty mouthful is connected with backward flow sludge pipe and blow off pipe, oxidation canal body and backward flow sludge pipe intercommunication.

The invention aims to provide an SBR method modified by an HJDLZYS process.

the device comprises a water inlet pipe, a coarse grid, a pump room, a fine grid, a sedimentation tank, a reaction tank and a secondary sedimentation tank which are connected with each other in sequence.

The invention aims to provide a common activated sludge method modified by a HJDLZYS process.

the utility model provides a with ordinary activated sludge method of HJDLZYS technology transformation, includes interconnect's sedimentation tank, reaction tank, two heavy ponds, two heavy pond middle parts are connected with the back flow that is used for returning the liquid of nitrifying to the reaction tank, two heavy ponds go out dirty mouthful and are connected with return sludge pipe and blow off pipe, reaction tank and return sludge pipe intercommunication.

The invention aims to provide a BAF process modified by a HJDLZYS process.

the utility model provides a BAF technology with HJDLZYS technology transformation, includes interconnect's inlet tube, inflow pond, sedimentation tank, feeds water pond, reaction tank, two heavy ponds, two heavy pond middle parts are connected with and are used for returning the back flow of nitrifying liquid to the reaction tank, two heavy pond dirt outlets are connected with return sludge pipe and blow off pipe, inflow pond and reaction tank all communicate with return sludge pipe.

The invention has the following advantages: 1. the sludge granulation efficiency is improved, and the wastewater treatment efficiency is further improved; 2. the method can improve the standard of the existing urban sewage plant, does not need civil engineering construction, and can improve the wastewater treatment efficiency of the plateau wastewater treatment production line. Also has higher economic value.

Drawings

FIG. 1 is a schematic diagram of a first embodiment;

FIG. 2 is a schematic view of a reaction cell according to the first embodiment;

FIG. 3 is a schematic view of a reactor according to a first embodiment;

FIG. 4 is a schematic view of the structure of a reactor in the second embodiment;

FIG. 5 is a schematic view of a third embodiment;

FIG. 6 is a schematic view of a fourth embodiment;

FIG. 7 is a schematic view of example V;

FIG. 8 is a schematic view of a sixth embodiment;

FIG. 9 is a schematic diagram of a seventh embodiment.

Reference numerals: 1. a high-efficiency aerobic reactor; 2. a high-efficiency facultative reactor; 3. a high-efficiency anaerobic reactor; 4. a mounting frame; 5. a tank body; 6. a plug flow agitation assembly; 7. a gas-water shearing and mixing component; 8. a circulation pipe; 9. a circulation pump; 10. a feed pipe; 11. an air inlet pipe; 12. compressing the pressurization air pump; 13. a valve; 14. a stirring shaft; 15. stirring blades; 16. a drive motor; 17. a discharge pipe; 18. a turbulent flow tube; 19. a partition plate; 20. a water storage area; 21. a mixing zone; 22. a water-absorbent fiber layer; 23. a through hole; 24. a water supply pipe; 25. a guiding cone; 26. a spiral sheet; 27. a sealing rod; 28. a driven gear; 29. a driving gear; 30. an active motor; 31. a dispersion rod; 32. a reaction tank; 33. a rotating brush 34 and an oxidation channel body.

Detailed Description

The first embodiment is as follows:

as shown in figure 1, the biological nitrogen and phosphorus removal process of HJDLZYS sequentially comprises a grid, an adjusting tank, a reaction tank 32 and a secondary sedimentation tank which are connected with each other, wherein a reactor group is arranged in the reaction tank 32. The reaction tank 32 is filled with a mixture including granulated sludge, a microbial carrier and a microbial agent. The type of the microbial inoculum can be added according to specific conditions. For example, when bioremediation treatment is performed on pollution caused by hydrocarbons such as petroleum and its derivatives, the microbial agents added are Bacillus, Saccharomyces, Micrococcus, etc. When the microbial inoculum is used for treating industrial wastewater such as municipal sewage treatment plants, various chemical wastewater, printing and dyeing wastewater, landfill leachate, food wastewater and the like, the added microbial inoculum is aeromonas, pseudomonas, acinetobacter and the like.

As shown in fig. 2 and 3, the reactor group includes at least one of a high-efficiency aerobic reactor 1, a high-efficiency facultative reactor 2 and a high-efficiency anaerobic reactor 3. The high-efficiency aerobic reactor 1 comprises a mounting frame 4, a tank body 5 which is fixedly mounted on the mounting frame 4 and is provided with a feeding end and a discharging end, a plug flow stirring component 6 arranged at the feeding end of the tank body 5, and an air-water shearing and mixing component 7 arranged at the discharging end of the tank body 5. The bottom of the reaction tank 32 is connected with a circulating pipe 8 for circulating sludge, the circulating pipe 8 is provided with a circulating pump 9, and the circulating pump 9 is a high-pressure pump. The feeding end of the tank body 5 is connected with a feeding pipe 10 which is connected with a circulating pipe 8, one side of the feeding pipe 10 is connected with an air inlet pipe 11, and a compression pressurization air pump 12 is arranged on the air inlet pipe 11. The intake pipe 11 is provided with a valve 13 for adjusting the intake air amount of the intake pipe 11. The valve 13 in the inlet line 11 is fully open.

As shown in fig. 3, the plug flow stirring assembly 6 includes a stirring shaft 14 rotatably connected to the tank 5, a stirring blade 15 provided on an outer wall of the stirring shaft 14, and a driving motor 16 for driving the stirring shaft 14 to rotate. The stirring shaft 14 is arranged along the horizontal direction, and the stirring shaft 14 penetrates into the tank body 5. The stirring blade 15 is positioned in the tank body 5. The driving motor 16 is fixedly arranged outside the tank 5, and an output shaft of the driving motor 16 is fixedly connected to the stirring shaft 14.

As shown in FIG. 3, the discharge end of the tank 5 is provided with a discharge pipe 17, and the discharge pipe 17 is rotatably connected to the discharge end of the tank 5 through a seal bearing. The upper end of the discharge pipe 17 is communicated with the tank body 5, the lower end of the discharge pipe is arranged in a closed mode, a turbulent flow pipe 18 is arranged on the outer wall of the discharge pipe 17 along the radial direction of the discharge pipe, the turbulent flow pipe 18 is communicated with the discharge pipe 17, and one end, far away from the discharge pipe 17, of the turbulent flow pipe 18 is arranged in a downward inclined mode. The turbulent flow tubes 18 are arranged along the circumferential direction of the discharge tube 17, one end, far away from the discharge tube 17, of each turbulent flow tube 18 bends towards the rotation direction of the discharge tube 17, and all the turbulent flow tubes 18 form the air-water shearing mixing assembly 7.

The specific structures of the high-efficiency facultative reactor 2 and the high-efficiency anaerobic reactor 3 are the same as the high-efficiency aerobic reactor 1. The difference is that a valve 13 on the air inlet pipe 11 of the high efficiency facultative reactor 2 is partially opened. The air inlet pipe 11 of the high-efficiency anaerobic reactor 3 is completely closed.

After the sewage is primarily cleaned through the grating, the sewage is introduced into the regulating tank to regulate the pH value and then is introduced into the reaction tank 32. Compressed air sucked by the air inlet pipe 11 enters the underwater main body of the reactor together with high-concentration microorganisms under the accurate control for granulation, primary dissolved air of mud, water, air and bacteria is formed under the action of the air-water shearing and mixing component 7, and then the primary dissolved air is incubated into HJDLZYS granulated sludge with a special structure. The sludge comes to the discharge pipe 17 due to gravity. Under the action of pressure, the sludge mixed liquid enters the turbulence pipe 18 and is sprayed out. The recoil of the water pressure after the ejection can apply a force to the turbulent flow tube 18, thereby rotating the discharge tube 17 relative to the tank 5. Thereby the sludge mixed liquid is sprayed in a rotating way, and the sludge, water, gas and bacteria are mixed better.

The reactor makes mud, water and bacteria in the whole HJDLZYS pool body in a continuous motion state. Meanwhile, the circulating pipe 8 at the bottom of the HJDLZYS tank body pumps the existing microorganism carrier and microbial inoculum in the tank to the top end of the reactor, and the granulation process of the granulated sludge is continuously completed. Realizes the full-covering and all-weather operation without dead angle for nitrification and denitrification, and ensures that granulation sludge granulation is carried out completely. Thereby improving the sludge granulation efficiency and further improving the wastewater treatment efficiency.

The wastewater treated in the reaction tank 32 enters a secondary sedimentation tank for sedimentation, and wastewater and sludge are discharged through the secondary sedimentation tank. Further completing the treatment of the wastewater, so that the effluent can meet the IV-class surface water requirement.

Example two:

the difference between the second embodiment and the first embodiment is that: as shown in fig. 4, a ring-shaped partition plate 19 is provided in the tank 5, and the partition plate 19 divides the inner cavity of the tank 5 into a water storage area 20 and a mixing area 21. The plug flow stirring component 6 is positioned in the mixing area 21, and the inner wall of the mixing area 21 is provided with a water-absorbing fiber layer 22. The partition plate 19 is provided with a plurality of through holes 23 communicating the water storage area 20 and the mixing area 21, and the water storage area 20 is connected to a water supply pipe 24 for supplying water into the water storage area 20. The end of the water supply pipe 24 far away from the tank body 5 is positioned above the clear liquid in the reaction tank 32. The water supply pipe 24 is provided with a water pump (not shown in the figure)

As shown in fig. 4, the plug flow stirring assembly 6 comprises a guide cone 25 rotatably connected to the tank 5 and a driving member for driving the guide cone 25 to rotate. The small end of the guide cone 25 faces the feeding pipe 10 and is rotatably connected with the upper end surface of the tank body 5. The vertical projection of the feed pipe 10 falls within the guide cone 25. The inner wall of the guide cone 25 is provided with a spiral blade 26 for guiding the sludge. The middle of the spiral sheet 26 is fixedly provided with a sealing rod 27 for the middle gap of the spiral sheet 26, and the spiral sheet 26 is arranged around the sealing rod 27 and is fixedly connected with the sealing rod 27. The driving element comprises a driven gear 28 fixedly sleeved outside the guide cone 25, a driving gear 29 rotationally connected to the tank 5 and a driving motor 30 for driving the driving gear 29 to rotate.

The lower end of the tank body 5 is arranged in a necking mode, and the discharge pipe 17 is connected to the necking position of the tank body 5. A plurality of dispersing rods 31 for scattering the sludge are uniformly distributed on the inner wall of the tank body 5, and the dispersing rods 31 are arranged at the tips towards one end of the center of the tank body 5.

A water film is formed on the inner wall of the mixing zone 21 by the water-absorbent fiber layer 22. After entering into guide cone 25, mud flows down along flight 26, then jets outwards along the tangent line of the big mouth section of guide cone 25, hits the inner wall of mixing area 21 to make mud, water, gas, fungus be broken up more than well and mix. Thereby improving the granulation efficiency of the sludge. Due to the existence of the water film, the probability of sludge remaining on the inner wall of the mixing zone 21 is reduced. So that mud, water and bacteria in the whole HJDL tank body are in a continuous motion state. Realizes the full-covering and all-weather operation without dead angle for nitrification and denitrification, and leads the granulation sludge granulation to be thorough.

Example three:

as shown in fig. 5, a method A2O modified by the HJDLZYS process described in the first embodiment sequentially comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are connected with each other. The anaerobic treatment device also comprises a reactor group, wherein the reactor group comprises an efficient anaerobic reactor 3 arranged in the anaerobic tank, an efficient facultative reactor 2 arranged in the anoxic tank and an efficient aerobic reactor 1 arranged in the aerobic tank. The anaerobic tank and the anoxic tank are both connected with water inlet pipes, the middle part of the aerobic tank is connected with a return pipe for returning the nitrifying liquid to the anoxic tank, the sewage outlet of the sedimentation tank is connected with a return sludge pipe and a sewage discharge pipe, and the anaerobic tank, the anoxic tank and the aerobic tank are all communicated with the return sludge pipe.

Therefore, the traditional A2O method is changed into the HJDLZYS process, and the wastewater treatment efficiency of the plateau wastewater treatment production line can be improved without civil construction.

Example four:

as shown in fig. 6, an oxidation ditch reformed by the HJDLZYS process described in the first embodiment includes an oxidation ditch body 34 with a trapezoidal cross section, a rotary brush 33 mounted on the oxidation ditch body 34, and a water inlet pipe connected with the oxidation ditch body 34 and used for supplying water to the oxidation ditch body 34, wherein a reactor group is mounted in the oxidation ditch body 34, the oxidation ditch body 34 is filled with a mixture, the oxidation ditch body 34 is connected with a secondary sedimentation tank, a sewage outlet of the secondary sedimentation tank is connected with a return sludge pipe and a sewage drain pipe, and the oxidation ditch body is communicated with the return sludge pipe.

Thereby change traditional oxidation ditch into HJDLZYS technology, need not the civil engineering construction, can improve the waste water treatment efficiency of plateau waste water treatment production line.

Example five:

as shown in fig. 7, an SBR method modified by the HJDLZYS process described in the first embodiment sequentially includes a water inlet pipe, a coarse grid, a pump room, a fine grid, a settling tank, a reaction tank 32, and a secondary settling tank, which are connected to each other.

Therefore, the traditional SBR method is changed into the HJDLZYS process, and the wastewater treatment efficiency of the plateau wastewater treatment production line can be improved without civil engineering construction.

Example six:

as shown in fig. 8, a common activated sludge process modified by the HJDLZYS process described in the first embodiment comprises a sedimentation tank, a reaction tank 32 and a secondary sedimentation tank which are connected with each other, wherein the middle part of the secondary sedimentation tank is connected with a return pipe for returning nitrified liquid to the reaction tank 32, a sewage outlet of the secondary sedimentation tank is connected with a return sludge pipe and a sewage discharge pipe, and the reaction tank 32 is communicated with the return sludge pipe.

Therefore, the common activated sludge method is changed into the HJDLZYS process, and the wastewater treatment efficiency of the plateau wastewater treatment production line can be improved without civil engineering construction.

Example seven:

as shown in fig. 8, a BAF process modified by the HJDLZYS process described in the first embodiment includes a water inlet pipe, an inflow tank, a sedimentation tank, a water feeding tank, a reaction tank 32, and a secondary sedimentation tank connected to each other, wherein the middle of the secondary sedimentation tank is connected to a return pipe for returning the nitrified liquid to the reaction tank 32, a sewage outlet of the secondary sedimentation tank is connected to a return sludge pipe and a sewage drain pipe, and both the inflow tank and the reaction tank 32 are communicated with the return sludge pipe.

Therefore, the traditional BAF process is changed into the HJDLZYS process, and the wastewater treatment efficiency of the plateau wastewater treatment production line can be improved without civil construction.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a biological nitrogen and phosphorus removal device of HJDLZYS which characterized in that: including grid, equalizing basin, reaction tank (32), two heavy ponds, install reactor group in reaction tank (32), reaction tank (32) intussuseption is filled with the mixture, the mixture includes granulation mud, microorganism carrier and microbial inoculum, reactor group is including at least one among high-efficiency aerobic reactor (1), high-efficiency facultative reactor (2) and high-efficiency anaerobic reactor (3), high-efficiency aerobic reactor (1), high-efficiency facultative reactor (2) and high-efficiency anaerobic reactor (3) all include mounting bracket (4), fixed mounting be equipped with feed end and discharge end jar body (5), locate jar body (5) the plug flow stirring subassembly (6) of feed end, locate jar body (5) the air water shearing mixing subassembly (7) of discharge end, reaction tank (32) bottom is connected with circulating pipe (8) that are used for circulation mud, a circulating pump (9) is arranged on the circulating pipe (8), the circulating pump (9) is a high-pressure pump, the feeding end of the tank body (5) is connected with a feeding pipe (10) used for being connected with the circulating pipe (8), one side of the feeding pipe (10) is connected with an air inlet pipe (11), and a valve (13) used for adjusting the air inflow of the air inlet pipe (11) is arranged on the air inlet pipe (11);

the gas-water shearing and mixing device is characterized in that a discharging pipe (17) is rotatably connected to the discharging end of the tank body (5), the upper end of the discharging pipe (17) is communicated with the tank body (5), the lower end of the discharging pipe (17) is arranged in a closed mode, a turbulent flow pipe (18) is arranged on the outer wall of the discharging pipe (17) along the radial direction of the discharging pipe, the turbulent flow pipe (18) is communicated with the discharging pipe (17), the turbulent flow pipe (18) is circumferentially provided with a plurality of turbulent flow pipes, one end, far away from the discharging pipe (17), of the turbulent flow pipe (18) is bent towards the rotating direction of the discharging pipe (17), and the gas-water shearing and mixing component (7) is formed by all the turbulent flow pipes (18);

the plug flow stirring assembly (6) comprises a guide cone cylinder (25) rotatably connected to the tank body (5) and a driving piece used for driving the guide cone cylinder (25) to rotate, a small opening end of the guide cone cylinder (25) faces towards the feeding pipe (10) and is rotatably connected to the upper end face of the tank body (5), the feeding pipe (10) falls into the guide cone cylinder (25) along the projection of the vertical direction, a spiral sheet (26) used for guiding sludge is arranged on the inner wall of the guide cone cylinder (25), the lower end of the tank body (5) is arranged in a necking shape, and the discharging pipe (17) is connected to the necking position of the tank body (5); an annular partition plate (19) is arranged in the tank body (5), the partition plate (19) divides an inner cavity of the tank body (5) into a water storage area (20) and a mixing area (21), the plug flow stirring assembly (6) is positioned in the mixing area (21), a water-absorbing fiber layer (22) is arranged on the inner wall of the mixing area (21), a plurality of through holes (23) which are communicated with the water storage area (20) and the mixing area (21) are formed in the partition plate (19), and the water storage area (20) is connected with a water supply pipe (24) which is used for supplying water into the water storage area (20);

a plurality of dispersing rods (31) used for scattering sludge are uniformly distributed on the inner wall of the mixing area (21) of the tank body (5), and the dispersing rods (31) are arranged at the tips towards one end of the center of the tank body (5).

2. A2O modified by the biological nitrogen and phosphorus removal device HJDLZYS of claim 1, wherein: include interconnect's anaerobism pond, oxygen deficiency pond, good oxygen pond and sedimentation tank in proper order, still include reactor group, reactor group is including installing high-efficient anaerobic reactor (3) in the anaerobism pond, installing high-efficient facultative reactor (2) in the oxygen deficiency pond, installing high-efficient aerobic reactor (1) in good oxygen pond, all be connected with the inlet tube on anaerobism pond and the oxygen deficiency pond, good oxygen pond middle part is connected with the back flow that is used for returning the nitrifying liquid to the oxygen deficiency pond, sedimentation tank goes out dirty mouthful and is connected with backward flow sludge pipe and blow off pipe, anaerobism pond, oxygen deficiency pond, good oxygen pond all communicate with backward flow sludge pipe.

3. An oxidation ditch modified by the biological nitrogen and phosphorus removal device HJDLZYS of claim 1, which is characterized in that: including the section be trapezoidal oxidation canal body (34), install change brush (33) on oxidation canal body (34) and connect oxidation canal body (34) and be used for the inlet tube that supplies water for oxidation canal body (34), install reactor group in oxidation canal body (34), oxidation canal body (34) intussuseption is filled with the mixture, oxidation canal body (34) are connected with two heavy ponds, two heavy ponds play dirty mouthful and are connected with backward flow sludge pipe and blow off pipe, oxidation canal body (34) and backward flow sludge pipe intercommunication.

4. An SBR apparatus modified by the biological nitrogen and phosphorus removal apparatus of HJDLZYS of claim 1, wherein: the device comprises a water inlet pipe, a coarse grid, a pump room, a fine grid, a sedimentation tank, a reaction tank (32) and a secondary sedimentation tank which are connected with each other in sequence.

5. A common activated sludge device modified by the biological nitrogen and phosphorus removal device HJDLZYS of claim 1, which is characterized in that: including interconnect's sedimentation tank, reaction tank (32), two heavy ponds, two heavy pond middle parts are connected with and are used for returning the back flow of reaction tank (32) with the liquid of nitrifying, two heavy pond dirt outlets are connected with return sludge pipe and blow off pipe, reaction tank (32) and return sludge pipe intercommunication.

6. A BAF apparatus modified by the biological nitrogen and phosphorus removal apparatus of HJDLZYS of claim 1, wherein: including interconnect's inlet tube, inflow pond, sedimentation tank, feed water pond, reaction tank (32), two heavy ponds, two heavy pond middle parts are connected with and are used for returning the back flow of nitrifying liquid to reaction tank (32), two heavy ponds are gone out dirty mouthful and are connected with return sludge pipe and blow off pipe, inflow pond and reaction tank (32) all communicate with return sludge pipe.