CN215365088U

CN215365088U - Low-intensity ultrasonic wave coupling SBR reinforced wastewater denitrification integrated reactor

Info

Publication number: CN215365088U
Application number: CN202121637640.5U
Authority: CN
Inventors: 贾胜勇; 徐蕴; 李桂荣; 王金林; 马元硕; 杨梦研; 王迪雅; 梁颖灏
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-12-31
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a low-intensity ultrasonic coupling SBR enhanced wastewater denitrification integrated reactor which comprises an SBR reactor, wherein a small floating decanter is arranged in the SBR reactor, and an ultrasonic vibrator is fixedly arranged on the inner wall on the right side of the SBR reactor. According to the low-intensity ultrasonic wave coupling SBR enhanced wastewater denitrification integrated reactor, the ultrasonic vibrator is arranged, and the ultrasonic vibrator emits low-intensity ultrasonic waves when the SBR operates, so that on one hand, secretion of microbial enzymes in activated sludge in a reaction system and improvement of enzyme activity can be promoted; on the other hand, the dispersion of the objects in the liquid phase is promoted, and the mass transfer is accelerated; meanwhile, the low-intensity ultrasonic waves can cause certain damage to microorganisms, destroy cell membranes of the microorganisms, reduce the propagation of the microorganisms, improve the biological denitrification efficiency of the SBR wastewater and reduce the amount of residual sludge.

Description

Low-intensity ultrasonic wave coupling SBR reinforced wastewater denitrification integrated reactor

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a low-intensity ultrasonic wave coupling SBR enhanced wastewater denitrification integrated reactor.

Background

Sequencing Batch Reactor (SBR) is widely applied to wastewater treatment plants, and can be divided into five stages, namely a water inlet stage, an aeration stage, a sedimentation stage, a water drainage stage and an idle stage, wherein in general, an anoxic stirring stage can be added after the aeration is finished. The degradation of organic pollutants, the oxidation of ammonia and the absorption of phosphorus are realized by activated sludge in the reactor under the aerobic condition, denitrification is realized at the anoxic stirring stage, sludge-water separation is realized through precipitation, and the next cycle is started after the drainage is finished. In the process, the time duration of each procedure can be adjusted according to the water quality and the water quantity, so that the treatment process can be flexibly carried out. The SBR mainly improves the removal efficiency of the pollutants by optimizing process parameters, however, the removal efficiency of the SBR after the process parameters are optimized is difficult to be further improved, which puts higher requirements on the improvement of the metabolism efficiency of microorganisms to the pollutants.

Ultrasonic waves generally refer to mechanical waves with frequency higher than 20 kHz, and researches show that low-intensity ultrasonic waves have a biological effect of enhancing the metabolic activity of activated sludge, so that a novel low-intensity ultrasonic wave coupled SBR integrated reactor is provided for enhancing the denitrification efficiency of wastewater.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a low-intensity ultrasonic coupling SBR enhanced wastewater denitrification integrated reactor, which solves the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a waste water denitrogenation integral type reactor is reinforceed to low strength ultrasonic wave coupling SBR, includes the SBR reactor, the inside of SBR reactor is provided with small-size unsteady hydrophone of straining, fixed mounting has the ultrasonic wave bumper on the inner wall on SBR reactor right side, the bottom fixedly connected with delivery port of the hydrophone is strained in small-size unsteady, the bottom fixed mounting of SBR reactor has aeration equipment, the left bottom fixedly connected with water installations of SBR reactor, fixed mounting has the agitator on the left inner wall of SBR reactor.

Furthermore, the small floating decanter floats on the wastewater liquid level, the bottom end of the water outlet is communicated with the outside of the SBR reactor, the small floating decanter and the water outlet are connected through a hose, and the water outlet is provided with a time-controlled electric valve.

Further, the vertical distance from the ultrasonic vibrator to the bottom of the SBR reactor is 1/2 of the height of the SBR reactor, and an ultrasonic generator is fixedly connected to the right side of the ultrasonic vibrator.

Further, the aeration device comprises an aeration head and a blower, wherein the aeration head is fixedly arranged at the bottom of the SBR reactor, and the bottom of the aeration head is connected with the blower through an air duct.

Further, water installations is including water inlet, intake pump, valve, storage water tank, the left side intercommunication of water inlet and SBR reactor, intake pump fixed connection is in the left side of water inlet, storage water tank fixed connection is in the left side of intake pump, fixed mounting has the valve between intake pump and the storage water tank.

Further, the distance from the stirrer to the bottom of the SBR reactor is 1/4 which is the height of the SBR reactor, and the stirrer is inclined to the lower right.

Has the advantages that:

1. according to the low-intensity ultrasonic wave coupling SBR enhanced wastewater denitrification integrated reactor, the ultrasonic vibrator is arranged, and the ultrasonic vibrator emits low-intensity ultrasonic waves when the SBR operates, so that on one hand, secretion of microbial enzymes in activated sludge in a reaction system and improvement of enzyme activity can be promoted; on the other hand, the dispersion of the objects in the liquid phase is promoted, and the mass transfer is accelerated; meanwhile, the low-intensity ultrasonic waves can also cause certain damage to microorganisms, destroy cell membranes of the microorganisms, accelerate the exchange rate of the microorganisms and external substances, reduce the propagation of the microorganisms, improve the biological denitrification efficiency of the SBR wastewater and reduce the amount of residual sludge.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. an SBR reactor; 2. a small floating decanter; 3. an ultrasonic generator; 4. an ultrasonic vibrator; 5. a water outlet; 6. an aeration head; 7. a blower; 8. a water inlet; 9. a water inlet pump; 10. a valve; 11. a water storage tank; 12. a stirrer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the present invention provides a technical solution: a low-intensity ultrasonic coupling SBR enhanced wastewater denitrification integrated reactor comprises a SBR reactor 1, the effective volume of the SBR reactor 1 is 10L, a small floating decanter 2 is arranged in the SBR reactor 1, an ultrasonic vibrator 4 is fixedly installed on the inner wall on the right side of the SBR reactor 1, the vertical distance from the ultrasonic vibrator 4 to the bottom of the SBR reactor 1 is 1/2 of the height of the SBR reactor 1, the ultrasonic vibrator 4 emits low-intensity ultrasonic waves when the SBR operates to reduce the residual sludge amount of a reaction system while improving the denitrification efficiency of the SBR, an ultrasonic generator 3 is fixedly connected to the right side of the ultrasonic vibrator 4, a water outlet 5 is fixedly connected to the bottom of the small floating decanter 2, the small floating decanter 2 floats on the wastewater liquid level, the bottom end of the water outlet 5 is communicated with the outside of the SBR reactor 1, and the small floating decanter 2 is connected with the water outlet 5 through a hose, the position of the small floating decanter 2 can change along with the change of the liquid level of the domestic sewage, the treated domestic sewage is discharged by a hose connected with the small floating decanter 2, a water outlet 5 is provided with a time-controlled electric valve to discharge the treated domestic sewage after meeting certain treatment time, the bottom of the SBR reactor 1 is fixedly provided with an aeration device, the aeration device comprises an aeration head 6 and an air blower 7, the aeration head 6 is fixedly arranged at the bottom of the SBR reactor 1, the bottom of the aeration head 6 is connected with the air blower 7 through an aeration pipeline, air is conveyed into the aeration head 6 through the air blower 7 and then is dispersed into the SBR reactor 1 by the aeration head 6, the dissolved oxygen content of the system is ensured in the aeration stage, the bottom at the left side of the SBR reactor 1 is fixedly connected with a water inlet device, and the water inlet device comprises a water inlet 8, a water inlet pump 9, a valve 10 and a water storage tank 11, water inlet 8 and SBR reactor 1's left side intercommunication, 9 fixed connection of intake pump is in the left side of

water inlet

8, 11 fixed connection in the left side of intake pump 9 in the storage water tank, carry water inlet 8 departments with the inside domestic sewage of storage water tank 11 through intake pump 9, carry domestic sewage in to SBR reactor 1 by water inlet 8 again, fixed mounting has valve 10 between intake pump 9 and the storage water tank 11, fixed mounting has agitator 12 on the left inner wall of SBR reactor 1, agitator 12 is the 1/4 of SBR reactor 1 height to the distance of 1 bottom of SBR reactor, agitator 12 inclines to the below to the right, be used for realizing the muddy water mixture at the oxygen deficiency stage that stops the aeration, accomplish the denitrification process.

In conclusion, when the low-intensity ultrasonic wave coupled SBR enhanced wastewater denitrification integrated reactor is used, domestic sewage in a water storage tank 11 is conveyed into the SBR reactor 1 through a water inlet pump 9, low-intensity ultrasonic waves are emitted into the SBR reactor 1 through an ultrasonic vibrator 4, the energy density is 20W/L, the action time is 10 min, the secretion of microbial enzymes and the improvement of the enzyme activity in activated sludge in a reaction system are promoted, the dispersion of objects in a liquid phase is promoted, air is conveyed into the SBR reactor 1 through an air blower 7, the aerobic reaction is carried out for 5 h, the dissolved oxygen content of the system is ensured in the aeration stage, then the aeration is stopped, a stirrer 12 is started to carry out anoxic stirring for 5 h, the denitrification is realized, the precipitation is carried out for 0.5 h after the stirring is finished, and the supernatant is discharged from a water outlet 5 through a small floating decanter 2 after the precipitation is finished, draining for 0.5 h, and standing for 1 h.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a waste water denitrogenation integral type reactor is reinforceed to low-strength ultrasonic wave coupling SBR, includes SBR reactor (1), its characterized in that: the inside of SBR reactor (1) is provided with small-size unsteady hydrophone (2) of decanting, fixed mounting has ultrasonic wave vibrator (4) on the inner wall on SBR reactor (1) right side, bottom fixedly connected with delivery port (5) of small-size unsteady hydrophone (2) of decanting, the bottom fixed mounting of SBR reactor (1) has aeration equipment, the left bottom fixedly connected with water installations of SBR reactor (1), fixed mounting has agitator (12) on the left inner wall of SBR reactor (1).

2. The integrated reactor of claim 1, wherein the low-intensity ultrasonic wave coupled SBR enhances denitrification of wastewater, and is characterized in that: the small floating decanter (2) floats on the wastewater liquid level, the bottom end of the water outlet (5) is communicated with the outside of the SBR reactor (1), the small floating decanter (2) is connected with the water outlet (5) through a hose, and the water outlet (5) is provided with a time-controlled electric valve.

3. The integrated reactor of claim 1, wherein the low-intensity ultrasonic wave coupled SBR enhances denitrification of wastewater, and is characterized in that: the vertical distance from the ultrasonic vibrator (4) to the bottom of the SBR reactor (1) is 1/2 of the height of the SBR reactor (1), and the right side of the ultrasonic vibrator (4) is fixedly connected with an ultrasonic generator (3).

4. The integrated reactor of claim 1, wherein the low-intensity ultrasonic wave coupled SBR enhances denitrification of wastewater, and is characterized in that: the aeration device comprises an aeration head (6) and a blower (7), wherein the aeration head (6) is fixedly arranged at the bottom of the SBR reactor (1), and the bottom of the aeration head (6) is connected with the blower (7) through an air duct.

5. The integrated reactor of claim 1, wherein the low-intensity ultrasonic wave coupled SBR enhances denitrification of wastewater, and is characterized in that: the water inlet device comprises a water inlet (8), a water inlet pump (9), a valve (10) and a water storage tank (11), wherein the water inlet (8) is communicated with the left side of the SBR reactor (1), the water inlet pump (9) is fixedly connected with the left side of the water inlet (8), the water storage tank (11) is fixedly connected with the left side of the water inlet pump (9), and the valve (10) is fixedly arranged between the water inlet pump (9) and the water storage tank (11).

6. The integrated reactor of claim 1, wherein the low-intensity ultrasonic wave coupled SBR enhances denitrification of wastewater, and is characterized in that: the distance from the stirrer (12) to the bottom of the SBR reactor (1) is 1/4 of the height of the SBR reactor (1), and the stirrer (12) is inclined towards the lower right.