Enhanced nitrogen and phosphorus removal aerobic bioreactor

Abstract

The utility model relates to the technical field of bioreactors, and discloses an enhanced nitrogen and phosphorus removal aerobic bioreactor. The enhanced nitrogen and phosphorus removal aerobic bioreactor comprises: a tank body; the transverse pipe is positioned in the tank body and is used for supporting an aeration head; the top of the tank body is connected with a rotating pipe through a rotating shaft, a feeding port is formed in one side of the rotating pipe, the transverse pipe is arranged on one side of the rotating pipe, one end of the transverse pipe is connected with the rotating pipe in a penetrating mode, a motor drives a driving gear to rotate through an output shaft, and the driving gear drives the rotating pipe to rotate through a driven gear. The top of the rotating pipe rotates in the fixed head, the rotating pipe drives the aeration head to rotate through the transverse pipe, liquid at different positions in the tank body is aerated at the same time, the liquid does not need to be moved to the aeration head in a stirring mode, the nitrogen and phosphorus removal efficiency of the liquid is effectively improved, and the practicability of the device is embodied.

Description

Technical Field

[0001] The utility model relates to the technical field of bioreactors, in particular to an enhanced denitrification and dephosphorization aerobic bioreactor. Background Art

[0002] A bioreactor is a reaction system that uses naturally occurring microorganisms or microorganisms with specialized degradation capabilities to inoculate a liquid or solid phase. The two most studied types of bioreactors are the elevator reactor and the soil slurry reactor.

[0003] When denitrifying and removing phosphorus from wastewater, an aerobic bioreactor is needed to remove nitrogen and phosphorus from the wastewater.

[0004] Patent document CN212559613U discloses an enhanced denitrification and phosphorus removal aerobic bioreactor, "to solve the problem of general denitrification and phosphorus removal effects of existing bioreactors in the prior art. Aerators are installed on both sides of the interior of the reactor shell, and moving blocks are installed at the upper and lower ends of the aerator. A threaded rod is installed inside the moving block. Stepper motors are installed on both sides of the lower end of the reactor shell, and a shaft sleeve is installed at the upper end of the interior of the reactor shell. An aeration membrane is installed on one side of the aerator, and a positioning block is provided on the other side of the aerator. Slide rails are installed on both sides of the interior of the reactor shell, and a servo motor is installed at the upper end of the reactor shell. A reducer is installed below the servo motor, a rotating shaft is installed below the reducer, and a stirring paddle is installed outside the rotating shaft."

[0005] When the aerobic bioreactor is denitrifying and removing phosphorus from wastewater, the aeration port of the aeration device can only move up and down at the same position, and the liquid is moved to the aeration port by the stirring device. However, the stirring device cannot drive all the liquid to move to the aeration port, and a long period of stirring is required to achieve the goal of denitrifying and removing phosphorus for all the liquid in the tank, which reduces work efficiency.

[0006] In addition, when removing phosphorus, existing aerobic bioreactors usually add reagents for chemical reactions such as iron salts and aluminum salts to the liquid to cause the phosphorus in the liquid to undergo chemical reactions and precipitate. The existing method for treating the precipitated phosphorus is to separate it through other equipment, which increases the cost of use. Utility Model Content

[0007] The purpose of the utility model is to provide an aerobic bioreactor for enhancing nitrogen and phosphorus removal to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an enhanced denitrification and phosphorus removal aerobic bioreactor, comprising:

[0009] Tank;

[0010] A transverse pipe located inside the tank body, the transverse pipe being used to support the aeration head;

[0011] The top of the tank body is connected to the rotating tube through a rotating shaft, a feed port is provided on one side of the rotating tube, the transverse tube is provided on one side of the rotating tube, one end of the transverse tube is connected to the rotating tube in a penetrating manner, the inside of the end of the transverse tube away from the rotating tube is connected to the aeration head through a fastener, a connecting tube is provided on the top of the rotating tube, one end of the connecting tube is connected to the aerator through a fastener, the aerator fastener is connected to the top of the tank body, a filter funnel is provided at the bottom of the rotating tube, and the transverse tubes are distributed at equal intervals on the rotating tube.

[0012] Preferably, a stirring plate is provided on the transverse tube, one end of the stirring plate is connected to the transverse tube via a fastener, and the stirring plates are distributed at equal intervals on the transverse tube.

[0013] Preferably, the top of the rotating tube is connected to a driven gear via a fastener, the driven gear engages a driving gear, one end of the driving gear is connected to an output shaft of a motor via a fastener, and the motor is connected to the top of the tank body via a fastener.

[0014] Preferably, the outer wall of the top of the rotating tube is connected to a limiting ring through a fastener, the outer wall of the limiting ring is provided with a fixed head, and the rotating tube is connected to the inner wall of the fixed head in a rotatable manner through the limiting ring.

[0015] Preferably, one end of the fixed head away from the rotating tube is connected to one end of the connecting tube via a fastener, and the connecting tube is connected to the top of the tank body via a fastener.

[0016] Preferably, an exhaust pipe is provided on the top of the tank body, the exhaust pipe passes through the tank body and is connected to the top of the tank body by a fastener, a discharge port is provided at the bottom of the tank body, and a solid material outlet is provided on one side of the discharge port.

[0017] Preferably, the inner wall of the tank is connected to the outer wall of the connecting ring through a fastener, the bottom of the connecting ring is connected to the filter funnel through a fastener, and the end of the filter funnel away from the connecting ring is connected to the solid material outlet.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] First, the present invention is convenient for simultaneously denitrifying and dephosphorizing liquids at different positions inside the tank body by arranging the transverse tube and the rotating tube. The liquid to be denitrified and dephosphorized is poured into the tank body through the feed port, and then the aerator is turned on. The gas generated by the aerator is transported to the inside of the rotating tube through the connecting tube, the rotating tube transports the gas to the inside of the transverse tube, and the transverse tube discharges the gas into the tank body through the aeration head to aerate the liquid inside the tank body. Then the motor is turned on, and the motor drives the driving gear to rotate through the output shaft, and the driving gear drives the rotating tube to rotate through the driven gear. The top of the rotating tube rotates inside the fixed head, and the rotating tube drives the aeration head to rotate through the transverse tube, so that the liquids at different positions inside the tank body are aerated simultaneously, and there is no need to move the liquid to the aeration head by stirring, which effectively improves the denitrification and dephosphorization efficiency of the liquid and reflects the practicality of this device.

[0020] Secondly, the present invention is able to facilitate the separation and discharge of precipitated phosphorus by providing a funnel filter and a solid material outlet. When phosphorus removal is required, aluminum salt is added to the inside of the tank through the feed port, and the phosphorus inside the liquid undergoes a chemical reaction to precipitate. The precipitated phosphorus falls on the filter funnel, and the discharge port is opened. The liquid inside the tank moves to the discharge port through the filter funnel, and the precipitated phosphorus remains on the filter funnel. After the liquid is discharged, the solid material outlet is opened, and the precipitated phosphorus can be discharged to the outside. There is no need to use separate equipment to separate the wastewater and the precipitated phosphorus, which effectively reduces the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 This is a schematic diagram of the transverse tube and stirring structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the fixed head and the limiting ring of the utility model;

[0025] Figure 5 This is a schematic diagram of the filter funnel and solid material outlet structure of the utility model.

[0026] Among them: 1. Tank body; 2. Feed port; 3. Discharge port; 4. Exhaust pipe; 5. Aerator; 6. Connecting pipe; 7. Rotating pipe; 8. Horizontal pipe; 9. Stirring plate; 10. Aeration head; 11. Solid material outlet; 12. Filter funnel; 13. Motor; 14. Fixed head; 15. Driving gear; 16. Driven gear; 17. Limiting ring; 18. Connecting ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 , an enhanced denitrification and phosphorus removal aerobic bioreactor, comprising:

[0029] Tank 1;

[0030] A transverse pipe 8 is located inside the tank body 1 and is used to support the aeration head 10;

[0031] The top of the tank body 1 is connected to the rotating tube 7 through a rotating shaft. A feed port 2 is provided on one side of the rotating tube 7. A transverse tube 8 is provided on one side of the rotating tube 7. One end of the transverse tube 8 is connected to the rotating tube 7 in a through-hole manner. The end of the transverse tube 8 away from the rotating tube 7 is connected to the aeration head 10 through a fastener. A connecting tube 6 is provided on the top of the rotating tube 7. One end of the connecting tube 6 is connected to the aerator 5 through a fastener. The aerator 5 fasteners are connected to the top of the tank body 1. A filter funnel 12 is provided at the bottom of the rotating tube 7. The transverse tubes 8 are distributed at equal intervals on the rotating tube 7. The liquid that needs to be denitrified and dephosphorized is poured into the interior of the tank body 1 through the feed port 2, and then the aerator 5 is turned on. The gas generated by the aerator 5 is transported to the rotating tube 7 through the connecting tube 6. Inside the rotating tube 7, the rotating tube 7 transports the gas to the inside of the transverse tube 8, and the transverse tube 8 discharges the gas into the inside of the tank body 1 through the aeration head 10, so as to aerate the liquid inside the tank body 1. Then, the motor 13 is turned on, and the motor 13 drives the driving gear 15 to rotate through the output shaft. The driving gear 15 drives the rotating tube 7 to rotate through the driven gear 16. The top of the rotating tube 7 rotates inside the fixed head 14, and the rotating tube 7 drives the aeration head 10 to rotate through the transverse tube 8. The liquids at different positions inside the tank body 1 are aerated simultaneously, and there is no need to move the liquid to the aeration head 10 by stirring, which effectively improves the denitrification and dephosphorization efficiency of the liquid, and reflects the practicality of this device.

[0032] Specifically, a stirring plate 9 is provided on the transverse tube 8 , one end of the stirring plate 9 is connected to the transverse tube 8 via a fastener, and the stirring plates 9 are distributed at equal intervals on the transverse tube 8 .

[0033] Through the above technical solution, the stirring plate 9 is used to stir the liquid during the process of aeration of the liquid by the aeration head 10, so as to accelerate the denitrification and dephosphorization of the liquid.

[0034] Specifically, the top of the rotating tube 7 is connected to the driven gear 16 via a fastener, the driven gear 16 engages the driving gear 15, one end of the driving gear 15 is connected to the output shaft of the motor 13 via a fastener, and the motor 13 is connected to the top of the tank body 1 via a fastener.

[0035] Through the above technical solution, the motor 13 and the output shaft are integrated, the motor 13 rotates through the output shaft, and the motor 13 is a brake servo motor 13, which prevents the motor 13 from still rotating after being turned off.

[0036] Specifically, the outer wall of the top of the rotating tube 7 is connected to the limiting ring 17 through a fastener. The outer wall of the limiting ring 17 is provided with a fixed head 14. The rotating tube 7 is connected to the inner wall of the fixed head 14 in a rotating manner through the limiting ring 17.

[0037] Through the above technical solution, the limiting tube is used to support the fixed head 14 and also to seal the connection between the fixed head 14 and the rotating tube 7 to prevent gas from leaking to the outside.

[0038] Specifically, one end of the fixing head 14 away from the rotating tube 7 is connected to one end of the connecting tube 6 via a fastener, and the connecting tube 6 is connected to the top of the tank body 1 via a fastener.

[0039] Through the above technical solution, the connecting pipe 6 is used to connect the fixed head 14 and the aerator 5 , so that the gas generated by the aerator 5 can be transported to the interior of the rotating tube 7 .

[0040] Specifically, an exhaust pipe 4 is provided on the top of the tank body 1 , the exhaust pipe 4 passes through the tank body 1 and is connected to the top of the tank body 1 by fasteners. A discharge port 3 is provided at the bottom of the tank body 1 , and a solid material outlet 11 is provided on one side of the discharge port 3 .

[0041] Through the above technical solution, the discharge port 3 is used to discharge the liquid that has completed the biological reaction to the outside, and the exhaust pipe 4 is used to discharge the gas generated during the reaction inside the tank body 1.

[0042] Specifically, the inner wall of the tank body 1 is connected to the outer wall of the connecting ring 18 through fasteners, the bottom of the connecting ring 18 is connected to the filter funnel 12 through fasteners, and the end of the filter funnel 12 away from the connecting ring 18 is connected to the solid material outlet 11.

[0043] Through the above technical solution, the connecting ring 18 is used to support the filter funnel 12 so that the filter funnel 12 can be unfolded. At the same time, the bottom of the funnel filter is in an oblique angle, which is convenient for filtering the solid phosphorus contained in the liquid.

[0044] When in use, first pour the liquid that needs to be denitrified and dephosphorized into the tank body 1 through the feed port 2, then turn on the aerator 5, the aerator 5 generates gas and transports it to the inside of the rotating tube 7 through the connecting pipe 6, the rotating tube 7 transports the gas to the inside of the transverse tube 8, and the transverse tube 8 discharges the gas into the tank body 1 through the aeration head 10, aerating the liquid inside the tank body 1, and then turn on the motor 13, the motor 13 drives the driving gear 15 to rotate through the output shaft, the driving gear 15 drives the rotating tube 7 to rotate through the driven gear 16, and the top of the rotating tube 7 is fixed on the fixed head. 14 rotates inside, and the rotating tube 7 drives the aeration head 10 to rotate through the transverse tube 8, so that the liquids at different positions inside the tank body 1 are aerated simultaneously. When phosphorus removal is required, aluminum salt is added into the tank body 1 through the feed port 2, and the phosphorus inside the liquid undergoes a chemical reaction and precipitates. The precipitated phosphorus falls on the filter funnel 12, and the discharge port 3 is opened. The liquid inside the tank body 1 moves to the discharge port 3 through the filter funnel 12, and the precipitated phosphorus remains on the filter funnel 12. After the liquid is discharged, the solid material outlet 11 is opened, and the precipitated phosphorus is discharged to the outside, and the work is completed.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An enhanced denitrification and phosphorus removal aerobic bioreactor, characterized by: include: Tank (1); a transverse pipe (8) located inside the tank body (1), the transverse pipe (8) being used to support the aeration head (10); The top of the tank body (1) is connected to the rotating tube (7) via a rotating shaft, a feed port (2) is provided on one side of the rotating tube (7), a transverse tube (8) is provided on one side of the rotating tube (7), one end of the transverse tube (8) is connected to the rotating tube (7) in a through-hole manner, the inside of the end of the transverse tube (8) away from the rotating tube (7) is connected to the aeration head (10) via a fastener, a connecting tube (6) is provided on the top of the rotating tube (7), one end of the connecting tube (6) is connected to the aerator (5) via a fastener, the aerator (5) is fastened to the top of the tank body (1), a filter funnel (12) is provided at the bottom of the rotating tube (7), and the transverse tubes (8) are distributed at equal intervals on the rotating tube (7).

2. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 1, characterized in that: The transverse tube (8) is provided with a stirring plate (9), one end of the stirring plate (9) is connected to the transverse tube (8) via a fastener, and the stirring plates (9) are distributed at equal intervals on the transverse tube (8).

3. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 1, characterized in that: The top of the rotating tube (7) is connected to a driven gear (16) via a fastener, the driven gear (16) engages with a driving gear (15), one end of the driving gear (15) is connected to an output shaft of a motor (13) via a fastener, and the motor (13) is connected to the top of the tank body (1) via a fastener.

4. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 1, characterized in that: The outer wall of the top of the rotating tube (7) is connected to a limiting ring (17) via a fastener; a fixed head (14) is provided on the outer wall of the limiting ring (17); and the rotating tube (7) is connected to the inner wall of the fixed head (14) in a rotating manner via the limiting ring (17).

5. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 4, characterized in that: One end of the fixed head (14) away from the rotating tube (7) is connected to one end of the connecting tube (6) via a fastener, and the connecting tube (6) is connected to the top of the tank body (1) via a fastener.

6. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 1, characterized in that: An exhaust pipe (4) is provided on the top of the tank body (1), the exhaust pipe (4) passes through the tank body (1) and is connected to the top of the tank body (1) by a fastener, a discharge port (3) is provided on the bottom of the tank body (1), and a solid material outlet (11) is provided on one side of the discharge port (3).

7. The enhanced denitrification and phosphorus removal aerobic bioreactor according to claim 6, characterized in that: The inner wall of the tank body (1) is connected to the outer wall of the connecting ring (18) via a fastener, the bottom of the connecting ring (18) is connected to the filter funnel (12) via a fastener, and the end of the filter funnel (12) away from the connecting ring (18) is connected to the solid material outlet (11).

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