CN211620069U

CN211620069U - Plate tower type aerobic bioreactor

Info

Publication number: CN211620069U
Application number: CN202020007159.7U
Authority: CN
Inventors: 徐洪斌; 王明印; 刘继珠; 吕巧慧; 秦玉波
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-10-02
Anticipated expiration: 2030-01-03

Abstract

The application belongs to the technical field of sewage treatment equipment, and particularly relates to a patent application of a plate tower type aerobic bioreactor. The reactor comprises a tank body for treating sewage and a solubilizing device arranged in the tank body; the top of the tank body is open, a sewage inlet is formed in the top of the tank body, and a sewage outlet is formed in the bottom of the tank body; the solubilization device is a fixed or detachable frame body arranged in the middle of the tank body, and a plurality of layers of flat plate type solubilization plates which are arranged in a staggered mode are designed on the frame body. When biochemical treatment is carried out on specific low-concentration domestic sewage, when the aerobic bioreactor provided by the application is used for treatment, excessive power equipment is not needed, the aerobic bioreactor is simple to maintain, the operation cost of sewage treatment can be well reduced, the continuous operation of the biochemical treatment effect and the sewage treatment can be well ensured, and therefore the aerobic bioreactor has good practical value and popularization and application significance.

Description

Plate tower type aerobic bioreactor

Technical Field

The application belongs to the technical field of sewage treatment equipment, and particularly relates to a patent application of a plate tower type aerobic bioreactor.

Background

In the sewage treatment process, in order to well reduce the COD value of the sewage body, aerobic treatment is an indispensable treatment process. In the prior art, the operation of the aerobic treatment process usually requires continuous introduction of oxygen into the sewage body by means of equipment such as a fan, a flow impeller and the like, thereby resulting in higher energy consumption in the sewage treatment process and additionally increasing the related labor cost and the operation cost of sewage treatment. On the other hand, once the equipment such as the fan, the impeller and the like breaks down, the breakdown of the sewage treatment system is very easy to cause, and the sewage treatment effect is further influenced. In actual operation, in order to avoid the shutdown of sewage treatment, redundant parallel redundant systems are often required to be designed, and further the sewage treatment cost is increased. In view of the above, there is a great need for further improvement and exploration of related sewage treatment plants to reduce sewage treatment costs.

Disclosure of Invention

Aiming at the problem of high cost of an aerobic treatment process in the prior art, the application aims to provide the plate-tower type aerobic bioreactor with low operation cost, thereby laying a certain technical foundation for further improvement of related sewage treatment technologies.

The technical solution adopted in the present application is detailed as follows.

A plate tower type aerobic bioreactor comprises a tank body for treating sewage and a solubilizing device arranged in the tank body;

the top of the tank body is open, and the tank body is generally designed into a cylindrical structure; the top of the tank body is provided with a sewage inlet, and the bottom of the tank body is provided with a sewage outlet; in the actual design, in order to discharge sewage quickly, the caliber of the water outlet is generally not less than 3 times of the caliber of the water inlet;

in the preferred design, flat water-blocking plates arranged at intervals are regularly or irregularly designed on the inner wall of the tank body, and the main function of the water-blocking plates is to increase the contact time and contact area between a water body and air in the falling process of sewage by blocking the falling process of the sewage when the sewage falls into the tank body, so as to increase the dissolved oxygen in the sewage; in a further preferred design, the water blocking plate is provided with holes through which water can pass, and the contact area between the water body and oxygen is further increased by slowing down the down-flow speed of the water body;

the solubilization device is a fixed or detachable frame body arranged in the middle of the tank body, the frame body is provided with a plurality of layers of flat plate type solubilization plates which are arranged in a staggered mode, and the solubilization device has the main function that when sewage falls or splashes onto the solubilization plates, the contact time and the contact area between the sewage and air are increased by slowing down the falling speed of the sewage or enabling the sewage to flow on the solubilization plates, so that the dissolved oxygen in a water body is increased; in the preferred design, the design has the through-hole that is used for rivers to pass through on the solubilization board, further can cooperate the solubilization board of cavity formula, can further slow down sewage descending speed and increase sewage and air area of contact to further promote dissolved oxygen effect.

In the actual design, solubilization board among the solubilization device and the water blocking board of jar internal wall set up at interval in turn to better harmonious sewage descending direction, thereby further improve oxygenation effect.

For practical application, in order to better meet the sewage treatment requirement, the following design can be referred to in the aspect of specific specifications: the design of jar body diameter is 3.0m, jar body height can design 4m, jar internal wall water-blocking plate can adopt the annular design, the outer loop radius can design 1.5m, the inner ring radius design is 0.3~0.4m (inner ring cavity, be used for downflow sewage), and solubilization board can adopt the design of circular flat board, the radius can design 1m, water-blocking plate and water-blocking plate, horizontal displacement and vertical displacement distance between water-blocking plate and the solubilization board all can design 0.5m, thereby better satisfy sewage downflow in-process and air area of contact and dissolved oxygen needs.

It is emphasized that the plate tower type aerobic bioreactor designed and provided by the application is mainly suitable for aerobic treatment of low-concentration domestic sewage (COD is less than or equal to 400 mg/L), and is not suitable for all types of sewage treatment applications.

In the concrete operation process, after the water inlet through the outer wall of the tank body enters the sewage to be treated, the sewage respectively passes through the water blocking plate and the solubilizing plate from top to bottom, and in the process, the sewage is blocked, divided or splashed, so that the contact time and the contact area of the sewage and the air are increased, the dissolved oxygen in the water is further increased, and the foundation is laid for aerobic treatment.

Generally, when biochemical treatment is carried out on specific low-concentration domestic sewage, when the aerobic bioreactor provided by the application is used for treatment, excessive power equipment is not needed, the maintenance is simple, the sewage treatment operation cost can be well reduced, the continuous operation of the biochemical treatment effect and the sewage treatment can be well ensured, and therefore the aerobic bioreactor has good practical value and popularization and application significance.

Drawings

FIG. 1 is a top view of a plate tower type aerobic bioreactor provided in the present application;

FIG. 2 is a vertical sectional view of a plate tower type aerobic bioreactor provided in the present application.

Detailed Description

The present application is further explained below with reference to the drawings and examples.

Examples

As shown in fig. 1 and fig. 2, the plate tower type aerobic bioreactor provided by the present application comprises a tank body 1 for treating sewage and a solubilizing device 5 arranged inside the tank body;

the tank body 1 is open at the top and is generally designed into a cylindrical structure; a sewage inlet is designed at the top of the tank body, and the sewage inlet pipe 3 can directly extend into the middle of the tank body through the sewage inlet so as to enable the sewage to directly contact with a solubilizing device at the middle (of course, the extension length in the tank body is reasonably determined according to the conditions of water pressure, pipe diameter, flow velocity and the like of the sewage inlet pipe 3); meanwhile, a sewage outlet is arranged at the bottom of the tank body, and sewage after aerobic treatment is discharged out of the tank body through a water outlet pipe 4. In the actual design, considering the needs of discharge time, scouring and the like, the caliber of the water outlet (which is equivalent to the caliber of the water outlet pipe) is generally not less than 3 times of the caliber of the water inlet (which is equivalent to the caliber of the water inlet pipe) (in the quick discharge mode, the quick discharge of water flow can be utilized to carry out certain scouring on the inner wall of the tank body, so that the subsequent maintenance is reduced).

In the specific design, flat water baffles 2 which are arranged at intervals are regularly or irregularly designed on the inner wall of the tank body 1, and the main function of the water baffle is to increase the contact time and contact area between a water body and air in the sewage falling process and further increase the dissolved oxygen in the sewage by blocking the sewage falling process when the sewage falls into the tank body; in a further preferred design, the water blocking plate 2 is provided with holes through which water can pass, and the contact area between the water body and oxygen is further increased by slowing down the down-flow speed of the water body.

The solubilization device 5 is a fixed or detachable frame body arranged in the middle of the tank body, a plurality of layers of flat plate type solubilization plates which are arranged in a staggered mode are designed on the frame body, and the solubilization device has the main function that when sewage falls or splashes onto the solubilization plates, the contact time and the contact area between the sewage and air are increased by slowing down the falling speed of the sewage or enabling the sewage to flow on the solubilization plates, and therefore the dissolved oxygen in a water body is increased; in the preferred design, the design has the through-hole that is used for rivers to pass through on the solubilization board, further can cooperate the solubilization board of cavity formula, can further slow down sewage descending speed and increase sewage and air area of contact to further promote dissolved oxygen effect.

It should be noted that, in a specific design, the solubilizing plates in the solubilizing device and the water blocking plates 2 on the inner wall of the tank body should be arranged at intervals in an alternating manner, so as to better coordinate the sewage falling direction, thereby further improving the oxygenation effect.

It should be emphasized that, in the case of the plate tower type aerobic bioreactor provided by the present application, the design application is mainly performed for low concentration domestic sewage, and therefore, the specific specification can refer to the following design:

the design of jar body diameter is 3.0m, jar body height can design for 4m, jar internal wall water-blocking plate can adopt the annular design, the outer loop radius can design for 1.5m, the inner ring radius design is 0.3~0.4m (inner ring cavity, be used for downflow sewage), solubilization board can adopt the design of circular flat board, the radius can design for 1m, water-blocking plate and water-blocking plate, horizontal displacement and vertical displacement distance between water-blocking plate and the solubilization board all can design for 0.5 m.

For specific preparation materials, the tank body, the water-blocking plate and the solubilizing device are made of steel generally, so that a long service life is ensured.

During specific operation, sewage extends into jar internal portion's inlet tube 3 entering jar internal portion through jar body 1 top and gets into jar body 1 inside back, fall and fall to solubilization board on solubilization device 5 after, along with the collision with the solubilization board, partly further falls downwards, mostly in addition spatter the board 2 that hinders on jar body 1 inner wall, and continue landing downwards or spatter again on the solubilization board along hindering the board 2, and finally descend to jar body 1 bottom, at this in-process, along with sewage and solubilization board, hinder the random collision of board 2, sewage flow velocity gets very big buffering, also obtained increasing promotion with air area of contact and contact time simultaneously, and then can improve aquatic dissolved oxygen volume, thereby establish the basis for aerobic treatment gets rid of the pollutant in the aquatic.

Generally, the aerobic bioreactor of plate tower formula that this application designed and provided does not need more power equipment, and it is lower to maintain the running cost, to low concentration domestic sewage treatment, has better practical value and popularization and application meaning.

Claims

1. A plate tower type aerobic bioreactor is characterized by comprising a tank body for treating sewage and a solubilizing device arranged in the tank body;

the top of the tank body is open, a sewage inlet is formed in the top of the tank body, and a sewage outlet is formed in the bottom of the tank body;

the solubilization device is a fixed or detachable frame body arranged in the middle of the tank body, and a plurality of layers of flat plate type solubilization plates which are arranged in a staggered mode are designed on the frame body.

2. The plate-tower aerobic bioreactor of claim 1, wherein the solubilizing plate is provided with through holes for water flow.

3. The plate-tower type aerobic bioreactor as claimed in claim 1, wherein the inner wall of the tank body is regularly or irregularly designed with flat-plate type water-blocking plates arranged at intervals.

4. The plate-tower aerobic bioreactor of claim 3, wherein the water-blocking plate is provided with perforations designed for the passage of water.

5. The plate-tower aerobic bioreactor of claim 3, wherein the solubilizing plates in the solubilizing means are alternately spaced from the water-blocking plates on the inner wall of the tank.

6. The plate-tower aerobic bioreactor according to claim 3, wherein the water-blocking plate is of annular design, and the inner ring is hollow; solubilization plates were designed as circular plates.

7. The tray-tower aerobic bioreactor according to claim 6, wherein in terms of specific specifications: the diameter of the tank body is designed to be 3.0m, the height of the tank body is designed to be 4m, the radius of an outer ring of a water-blocking plate on the inner wall of the tank body is designed to be 1.5m, and the radius of an inner ring is designed to be 0.3-0.4 m; the radius of the solubilizing plate is designed to be 1m, and the horizontal displacement and the vertical displacement distances between the water blocking plate and between the water blocking plate and the solubilizing plate are designed to be 0.5 m.