KR100936742B1 - Apparatus for increasing dissolved oxygen in aeration tank - Google Patents

Abstract

PURPOSE: An apparatus for increasing dissolved oxygen in an aeration tank is provided to process water which is available to inhabitation of microorganism, and to circulate the whole processed water in the aeration tank. CONSTITUTION: An apparatus for increasing dissolved oxygen in an aeration tank includes an aeration tank(1), an air pump(2), and an air injection nozzle(3). The air transferred by the air pump is sprayed to the processed water in the aeration tank. A processed water embedded body(11) is arranged on a surface layer of the processed water. The processed water embedded body includes a plurality of processed water overflowing bodies(12) and a plurality of processed water derivatives(13). The processed water embedded body is installed at a frame(11a), and is arranged on the surface layer of the processed water. A pipe(13a) is connected to the bottom of the processed water embedded body.

Description

Dissolved oxygen increase device for aeration tank {APPARATUS FOR INCREASING DISSOLVED OXYGEN IN AERATION TANK}

The present invention relates to an aeration tank dissolved oxygen increasing apparatus for efficiently contacting gas such as air and oxygen to a liquid stored in a sewage treatment plant and a dam, and more specifically, to concentrate oxygen on the surface water film of the treated water in the aeration tank. In addition, by circulating the treated water supplied with oxygen to the entire treated water in the aeration tank, oxygen gas and nitrogen gas can be smoothly supplied to the treated water by using the oxygen that is given up inside the treated water and the outside air. The present invention relates to an aeration tank dissolved oxygen increasing apparatus that allows a dissolved balance of water to be caught in the water to be treated and easily changed into water that is easily inhabited by living organisms.

In general, aquaculture tanks, plant cell culture plants, dams, sewage treatment plants, etc. are provided with aeration tank and aeration device, to supply oxygen to the aeration device to the treated water in the aeration tank.

For example, a technique for abandoning the device disclosed in Japanese Patent Laid-Open No. 2000-27191 increases the reflux flow rate of the water to be treated and improves the air refinement performance.

As another example, the apparatus and purification method of a closed water body disclosed in Japanese Patent Application Laid-Open No. Hei 10-73099 increase the aeration action by the flow of water which is stagnated in the closed water by the flow of water, which promotes the flow of the water mass and oxygen. A technique for supplying is disclosed.

However, since the conventional technique is based on the generation of bubbles in the liquid to increase the contact area between the gas and the liquid, or to increase the contact time between the bubbles and the liquid, the air supplied to the water to be treated, namely, Only oxygen and nitrogen can be consumed by many organisms in which oxygen and nitrogen survive in the water to be treated, and the amount of nitrogen gas can be increased, resulting in a poor balance of oxygen and nitrogen, which is very inefficient.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to use the buoyancy of the bubble particle group generated in the acidic portion disposed in the water to be treated, bubbles of the bubble particles higher than the water surface The present invention provides an aeration tank-dissolved oxygen increasing apparatus capable of easily changing the water to be treated into a thin film of water on the surface of a liquid bubble by which the particle rise passage is raised to change into a liquid bubble.

In addition, it is possible to circulate the entire treated water in the aeration tank by exposing it to the aeration tank at a long time under atmospheric pressure and making the overflow position higher than the water surface, and then introducing it into the deep aeration tank using a water head difference. The present invention provides an aeration tank dissolved oxygen increasing apparatus capable of catching the dissolved balance of the gas in the water to be treated and easily converting it into water that is easily inhabited by living organisms.

In order to achieve the above object, the present invention is the aeration tank dissolved oxygen increasing apparatus in which the air conveyed by the air pump is injected into the treated water of the aeration tank through the air spray nozzle, the surface of the treated water of the aeration tank The lower part of the treated water packaged body disposed in the submerged body is immersed in the treated water, and the upper part of the treated water packaged body is installed higher than the surface of the treated water, and a plurality of treated water overflow bodies are provided on the inner lower part of the treated water package. And a plurality of treated water derivatives are installed, the upper end portion of the treated water overflow body is formed to protrude upward from the surface of the treated water, and the treated water derivative is located below the surface of the treated water, and a pipe is provided below the treated water derivative. An air spray nozzle connected to the air spray nozzle, the air spray nozzle being in close proximity to the lower portion of the treated water flow passage, and sprayed from the air spray nozzle The treated water flows through the inside of the treated water flow passage to the upper end and flows into the treated water inner body, and the treated water in the treated water inner body is guided to the lower portion of the treated water in the aeration tank by the treated water derivative and pipe. It provides an aeration tank dissolved oxygen increasing apparatus comprising a.

In the aeration tank dissolved oxygen increasing apparatus according to the present invention, the water to be treated located at the lower portion of the water-sustaining fluid is treated primarily by the air injected from the air injection nozzle, and the water to be treated increases with the water droplets formed by the injection air. Therefore, since the treated water suspension flows through the second air and contacts the air in the atmosphere, oxygen can contact the large surface area of the water to be treated, and there is an advantage that oxygen can be smoothly supplied to the treated water.

Furthermore, the treated water in contact with the oxygen of the air is embedded in the treated water inner body in the treated state, and the treated water in the treated water inner body is guided deeply into the treated water in the abandoned tank by the treated water guide and the pipe. The entire water to be treated can be smoothly contacted with oxygen while circulating, so that the dissolved balance of oxygen gas and nitrogen gas can be caught in the water to be treated and can easily be changed to water which is easily inhabited by living organisms.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 to 3 is a view showing the aeration tank dissolved oxygen increasing apparatus according to the present invention, in the aeration tank (1) like the conventional air conveyed by the air pump (2) through the air injection nozzle (3) It is sprayed in the water to be treated in 1).

In the present invention, the treated water internal body 11 is disposed on the surface layer of the water to be treated in the aeration tank 1, and the treated water inner body 11 includes a plurality of treated water suspension bodies 12 and a plurality of treated water. A derivative 13 is provided, and the treated water treated by the air spray nozzle 3 flows through the treated water overflow body 12 and is guided by the treated water inductor 13 to deepen the treated water in the aeration tank 1. It consists of a structure that is guided to where.

That is, the treated water internal body 11 is disposed on the surface of the water to be treated in the abandoned tank 1 so as not to be immersed in the water to be treated in the abandoned tank 1. It is installed in the frame (11a) can be disposed on the surface layer of the water to be treated in the aeration tank (1), although not shown can be tied to a rope or floated in the water to be treated in the aeration tank (1) using a buoyancy body.

Therefore, the lower part of the treated water body 11 is immersed in the water to be treated and the upper part of the treated water body 11 is installed higher than the surface of the water to be treated.

A plurality of treated water flow passages 12 and a plurality of treated water derivatives 13 are installed in the lower portion of the inner side of the treated water internal body 11 so that the water to be treated in the aeration tank 1 flows through the treated water suspension body 12 through the treated water suspension body 12. In addition, it is a structure that can be returned to the aeration tank (1) through the treated water conductor (13).

The treated water conductor 13 is positioned below the surface of the water to be treated, and a pipe 13a is connected to the lower portion of the treated water conductor 13.

Of course, the upper end portion of the treated water suspension body 11 is preferably formed to protrude upward from the surface of the water to be treated. In the present embodiment, the liquid in the aeration tank 1 is referred to as the water to be treated and the treated water suspension body 11 is overflowed. Liquid is called treated water.

Meanwhile, in order to allow the water to be treated in the aeration tank 1 to flow over the treated water suspension body 12, an air spray nozzle connected to the air pump 2 for injecting air flowing out of the air pump into the water to be treated ( 3) is disposed close to the lower portion of the treated water flow.

Then, the air injected from the air injection nozzle 3 is injected into the surface layer of the water to be treated, which is a portion adjacent to the water-treatment flow passage 12, to supply oxygen to the water to be treated, and the rising air together with the water to be treated. It rises through the inside of the process water flow body 12.

Thus, the water to be treated flows to the upper end through the inside of the treated water overflow body 12 by the air injected from the air spray nozzle 3, and then flows into the treated water internal body 11, and the treated water internal body 11. The treated water in the water is guided to the depth under the water to be treated in the aeration tank 1 by the treated water conductor 13 and the pipe 13a.

In particular, the present invention includes a structure in which an upper portion of the treated water suspension body 11 and a lower portion of the treated water conductor 13 are narrowly formed in order to easily flow the treated water through the treated water suspension body 11.

Further, the treated water level in the treated water inner body 11 is extended to the upper end of the treated water suspension body 11 so that the treated water level in the treated water internal body 11 is higher than that of the treated water in the aeration tank 1 so that the treated water in the treated water 11 is treated water induced. In order to be able to easily descend to the 13 and the pipe (13a), the present invention includes connecting the overflow pipe (12a) to the upper end of the treated water suspension body (12).

Furthermore, in the present invention, as shown in FIG. 1, in order to quickly discharge the treated water that has passed the treated water overflow body 12 in the treated water internal body 11, the treated water derivative is disposed at the shortest position and the shortest distance of the treated water. It is preferable that (13) be located.

Thus, in the present invention, a plurality of treated water suspension bodies 12 and a plurality of treated water conductors 13 are arranged in a lattice shape on the treated water inner body 11, but the treated water conductor 13 has a plurality of treated water suspension bodies. It consists of a structure surrounded by (12).

The aeration tank dissolved oxygen increasing apparatus according to the present invention made as described above acts as follows.

Even if the air spray nozzle 3 disposed in the water is placed in a shallow place of about 20 to 30 cm from the surface of the water to be treated, it can generate vacuoles, even if the pressure of the air injected through the air spray nozzle 3 is low. It can be easily overflowed through the treated water suspension body (12).

That is, the compressed air from the air pump (2) is injected through the air spray nozzle (3) to abandon the water to be treated in the aeration tank (1), the water to be abandoned as the water rises and at the same time the water droplets are formed, Overflow through (12).

Then, oxygen in the air injected from the air spray nozzle 3 may be supplied to the water to be treated first, and the water to be processed that has flown through the treated water suspension body 12 may be in contact with the oxygen of the atmosphere.

In particular, as shown in FIG. 3, the large surface area of the water to be treated is in contact with the air by the water droplets flowing through the treated water suspension body 12, and the air is rapidly supplied to the water to be treated as the water droplets burst in the air.

On the other hand, as described above, the treated water that has flowed through the treated water suspension body 12 and supplied with oxygen is embedded in the treated water inner body 11, and the level of the treated water in the treated water inner body 11 is treated in the aeration tank 1. It is formed higher than the water level.

Then, even in the state as shown in FIG. 2, the treated water in the treated water body 11 may be re-injected into the depth of the lower part of the treated water in the aeration tank 1, even if the oxygen is continuously supplied to the surface layer of the treated water in the abandoned water tank. The treated water in the aeration tank is continuously circulated as it is treated.

Therefore, due to the difference in the water level in the treated water body 11 and the water level in the aeration tank, the treated water in the aeration tank can be circulated as a whole, so that oxygen enrichment can be smoothly and economically realized.

Furthermore, under atmospheric pressure, the thin film water state on the surface of the vesicles is not only the state in which oxygen is most easily dissolved, but also a dissolution balance between oxygen gas and nitrogen gas can be obtained, and can be varied to a comfortable water quality for microorganisms.

In other words, as shown in Fig. 2 and 3, the air injected through the air injection nozzle (3) is abandoned in the water to be treated in the aeration tank to generate bubble particles continuously.

The bubble particles rise by buoyancy and are formed as a group of bubble particles, and the group of bubble particles is formed by the buoyancy of the buoyancy and the collective buoyancy of the bubble particles accelerated and raised toward the surface through the treated water flow passage 12. As a result, it rises to a position higher than the surface of the water to be treated in the aeration tank.

As the treated water and the bubble particles rising through the treated water suspension body 12 are exposed to the atmosphere, the treated water having a high dissolved oxygen amount in which the dissolved concentration of oxygen gas and nitrogen gas is balanced can be made.

Therefore, since the present invention can supply oxygen to the treated water with high efficiency, it is economical because the microorganisms can be further activated to increase the sewage treatment capacity, and most existing equipment can be utilized as it is.

It is useful for the oxygen supply of aquaculture farms, etc. in closed waters such as a lake or the ocean, or the recovery and removal of contaminants (including residues and powders) suspended in the water reservoirs or underwater areas.

It is useful for oxygen supply and removal and removal of residues and powders in tubular water tanks. It is useful for recovery and removal of suspended solids, etc. contained in industrial circulating water, and is advantageous for the production of high concentration of gas dissolved and degassed water. The combination of gas dissolution treatment and degassing treatment is advantageous for the production of various functional waters.

In addition, the present invention is useful as an aeration device having a function of dissolving gas with high efficiency by liquefying liquid and at the same time as a pump that can move the liquid to a separate place, and is highly efficient for treated water such as sewage treatment plant. It is useful as aeration device to incubate oxygen, and it is useful for dissipation of unnecessary ozone gas remaining in treated water using ozone gas.

1 is a plan view showing an aeration tank dissolved oxygen increasing apparatus according to the present invention,

2 is a cross-sectional view showing an aeration tank dissolved oxygen increasing apparatus according to the present invention,

Figure 3 is an enlarged cross-sectional view of the main part of the aeration tank dissolved oxygen increasing apparatus according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: Aeration tank 2: Air pump

3: air spray nozzle 11: treated water body

12: treated water flowing fluid 13: treated water derivative

Claims (4)

In the aeration tank dissolved oxygen increasing apparatus consisting of injecting the air carried by the air pump in the treated water of the aeration tank through the air injection nozzle, The lower part of the treated water packaged body disposed on the surface of the treated water of the aeration tank is immersed in the treated water and the upper part of the treated water packaged body is installed higher than the surface of the treated water. A plurality of treated water flow passages and a plurality of treated water derivatives are installed at an inner lower portion of the treated water internal body, The upper end of the treated water flow body is formed to protrude upward from the surface of the water to be treated, and the treated water derivative is located below the surface of the water to be treated. A pipe is connected to the lower portion of the treated water conductor, An air spray nozzle for injecting air is disposed close to the lower portion of the treated water flow passage, By the air injected from the air spray nozzle, the water to be processed flows to the upper end through the inside of the treated water overflow body and flows into the treated water internal body, The treated water in the treated water containing body is guided to the lower part of the treated water in the aeration tank by the treated water guide and the pipe, A plurality of treated water suspensions and a plurality of treated water derivatives are arranged in a lattice shape in the treated water inner body, and the treated water derivative further comprises a surrounded by a plurality of treated water suspensions. . The method of claim 1, An aeration tank dissolved oxygen increasing apparatus comprising narrowly forming an upper portion of the treated water flow passage and a lower portion of the treated water derivative. The method according to any one of claims 1 and 2, Aeration tank dissolved oxygen increasing apparatus comprising a monthly pipe connected to the upper end of the treated water flow. delete

Images