KR20170020078A - Gas dissolution tank and waste-water treatment and furifying system using the same - Google Patents

Gas dissolution tank and waste-water treatment and furifying system using the same Download PDF

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Publication number
KR20170020078A
KR20170020078A KR1020150114777A KR20150114777A KR20170020078A KR 20170020078 A KR20170020078 A KR 20170020078A KR 1020150114777 A KR1020150114777 A KR 1020150114777A KR 20150114777 A KR20150114777 A KR 20150114777A KR 20170020078 A KR20170020078 A KR 20170020078A
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KR
South Korea
Prior art keywords
gas
partition plate
region
mixture
partition
Prior art date
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KR1020150114777A
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Korean (ko)
Inventor
신명선
Original Assignee
(주)에스엠워터테크
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Priority to KR1020150114777A priority Critical patent/KR20170020078A/en
Publication of KR20170020078A publication Critical patent/KR20170020078A/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • B01F1/0038—
    • B01F3/04248—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B01F2003/04886—
    • B01F2215/0052—

Abstract

According to an embodiment of the present invention, there is provided a gas-liquid separator comprising: a main body having an inner space capable of storing a mixture of gas and fluid, and having an inlet through which the mixture is introduced into the lower portion and an outlet through which the mixture can be discharged to the outside, 53); A partition plate (51) located in an internal space of the main body; And at least one through rod (55) coupled through the partition plate plate (51) and having an internal space through which the mixture can move, and the mixture present in the spaces defined by the partition plate plate (51) And is moved through the inner space of the through rod (55).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas dissolution tank,

The present invention relates to a gas dissolution tank and a wastewater treatment and water treatment system using the same.

The eutrophication of rivers is serious and in preparation for water shortages, the Ministry of Environment is changing its policy of increasing treatment efficiency and reusing water.

To meet the newly required water treatment standards, water treatment companies are trying to develop technologies that apply membrane separation, chemicals, filtration, and adsorption technology. However, these methods require long maintenance costs.

According to an embodiment of the present invention, there is provided a gas dissolving tank capable of maintaining a constant internal pressure without a vent for discharging an undissolved excess gas in dissolving an injection gas, and a wastewater treatment and water treatment system using the same .

According to another embodiment of the present invention, there can be provided a gas dissolving tank in which a plurality of gas layers are formed inside, and the internal pressure can be constantly controlled through fine contraction and expansion of the gas layer, and a wastewater treatment and water treatment system using the same have.

According to another embodiment of the present invention, a gas dissolution tank having high gas solubility and a wastewater treatment and water treatment system using the same can be provided.

According to an embodiment of the present invention, in the gas-dissolving tank 5, the gas-dissolving tank 5 has an inner space capable of storing a mixture of gas and fluid, and has an inlet through which the mixture is introduced into the lower portion, A main body 53 having an outlet that can flow out; At least one partition plate (51) located in an inner space of the main body; And at least one through rod (55) coupled through the partition plate (51) and having an inner space through which the mixture can move; , And the mixture existing in the spaces defined by the at least one partition plate plate (51) is moved through the inner space of the at least one through rod (55). Can be provided.

According to another embodiment of the present invention, in a wastewater treatment and water treatment system using ozone gas, at least one partition wall is provided, and wastewater flows into any one of the areas partitioned by the partition wall , An ozone reaction tank (1) configured to discharge the influent wastewater to the outside through other areas of the areas partitioned by the partition wall; The gas dissolving tank 5 described above; And an injection nozzle (7) disposed below any one of the regions partitioned by the partition wall to inject air bubbles, wherein the gas dissolution tank (5) discharges the ozone from the ozone reaction tank (1) And injects bubbles into the ozone reaction tank 1 after receiving the treated water discharged from the gas dissolving tank 5. The ozone reaction tank 1 is provided with a plurality of nozzles A wastewater treatment and a water treatment system using ozone gas can be provided.

According to one or more embodiments of the present invention, it is possible to easily dissolve the injection gas in a large amount while maintaining the internal pressure constant without providing a vent for discharging the undissolved excess gas in dissolving the injection gas. In addition, a plurality of gas layers are formed inside the gas-dissolving tank, so that the internal pressure can be constantly controlled while the gas is repeatedly contracted and expanded. Further, even if the consumption power is low, the operating pressure is low and the gas solubility is high.

1 is a view for explaining a wastewater treatment and water treatment system using ozone gas to which a gas dissolution tank according to an embodiment of the present invention is applied.
2 and 3 are views for explaining a gas dissolving tank according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are intended to be < RTI ID = 0.0 >

And it is intended that the spirit of the present invention be fully conveyed to those skilled in the art.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons for explaining the present invention.

1 is a view for explaining a wastewater treatment and water treatment system using ozone gas to which a gas dissolution tank according to an embodiment of the present invention is applied.

1, a wastewater treatment and water treatment system using an ozone gas (hereinafter, referred to as 'a wastewater treatment and water treatment system using ozone gas'), to which a gas dissolution tank according to an embodiment of the present invention is applied, 1, an ozone gas generator 3, a gas dissolving tank 5, an injection nozzle 7, a ozone gas destruction portion 9, an injector 11, and a pump 13.

In the ozone reaction tank 1, at least one partition wall is provided therein, and regions are partitioned by the partition wall. 1, the ozone reaction tank 1 includes three partition walls W1, W2, and W3 that are spaced apart from each other. The ozone reaction tank 1 is divided by the partition walls W1, W2, Is divided into four regions R1, R2, R3, and R4. Here, for the purpose of the description of the present invention, the four regions are referred to as a first region R1, a second region R2, a third region R3, and a fourth region R4, Are illustrative and the present invention is not limited to such numbers. For example, the barrier may be one, two, or four or more.

In this embodiment, the partition walls W1, W2 and W3 partition the inside of the ozone reaction tank 1 into a plurality of regions R1, R2, R3 and R4, , R4 are not completely isolated from each other, and the wastewater or water to be purified (hereinafter referred to as raw water) can be moved through each region.

1, the upper part of the partition wall W1 is connected to the upper part of the ozone reaction tank 1 so that the raw water is not moved, and the lower part of the partition wall W1 is connected to the ozone reaction tank 1, As shown in FIG. By doing so, the raw water present in the first region R1 can be moved to the second region R2 via the lower portion of the ozone reaction tank 1. [ The upper part of the partition wall W2 is spaced apart from the upper part of the ozone reaction tank 1 so that the raw water can be moved beyond the partition wall W2 and the lower part of the partition wall W2 is connected to the ozone reaction tank 1, As shown in FIG. By doing so, the raw water existing in the second region R1 can be moved to the third region R3 beyond the partition W2.

The upper part of the partition wall W3 is connected to the upper part of the ozone reaction tank 1 so that the raw water is not moved and the lower part of the partition wall W3 is separated from the lower part of the ozone reaction tank 1 so that the raw water is moved. By doing so, the raw water existing in the third region R3 can be moved to the fourth region R4 via the lower portion of the ozone reaction tank 1. [

1, the first region R1 is a region into which raw water flows, and the second region R2 is a region into which raw water of the first region flows. For example, the raw water flowing into the first region R1 is settled to the lower portion of the first region R1, and the settled raw water passes between the lower portion of the ozone reaction tank 1 and the partition W1, As shown in FIG.

In this embodiment, an injection nozzle 7 for generating and injecting bubbles is disposed at the bottom of the second area. The bubbles injected by the injection nozzle 7 are floated by the buoyant force, and float the sludge (scum) generated by the contaminants existing in the raw water, for example, floating substances. The floated sludge (scum) can be concentrated and removed at the upper part of the ozone reaction tank 1, so that contaminants present in the raw water can be suppressed from flowing out.

An apparatus 19 for treating floating contaminants may additionally be provided in the upper part of the ozone reaction tank 1. Since apparatuses for treating contaminants floating on the upper part of the ozone reaction tank 1 can be implemented by well-known techniques in the art, detailed description of such apparatuses will be omitted herein.

The injection nozzle 7 may be a nozzle capable of generating bubbles or a nozzle capable of generating minute bubbles. For example, Korean Patent No. 0807189 (Mar. 29, 2008) describes a nozzle capable of generating minute bubbles. Nozzles capable of producing minute bubbles are well known in the art, and such nozzles may be used. In this embodiment, the injection nozzle 7 is located in the second region R2 and injects the circulating water in which the ozone is dissolved into the second region R2.

 The water moved to the second region (R2) mixes with the circulating water in which ozone is dissolved and floats upwards. The raw water floated above the second region R2 is mixed with the circulating water in which the ozone is dissolved so as to flow into the upper portion of the third region R3 beyond the partition W2 which is spaced apart from the upper portion of the ozone reaction tank 1. [ .

The third region R3 is a region into which the raw water floated above the second region R2 is mixed with the circulating water dissolved in the ozone and the raw water flowing into the third region R3 Mixed with the dissolved circulating water) is moved to the fourth region via the space between the lower portion of the ozone reaction tank 1 and the partition W3.

The fourth region R4 is a region into which the treated water past the lower portion of the third region R3 flows (raw water after passing through the pollutant treatment device 19), and the treated water moved to the fourth region R4 And is discharged to the outside through an outlet located in the lower portion of the fourth region R4. For example, a discharge port through which the process water is discharged to the outside is formed in the lower portion of the fourth area R4. A portion of the treated water discharged to the outside through the discharge port is supplied to the gas dissolving tank 5 by the pump 13.

The ozone gas generator 3 can generate ozone gas. The ozone gas generated by the ozone gas generator 3 can be injected into the treatment water flowing into the gas dissolution tank 5 through an apparatus such as the injector 11, for example.

That is, the injector 11 receives the ozone gas and a part of the treated water discharged from the ozone reaction tank 1, and discharges the mixed mixture of the ozone gas and the treated water to the gas dissolving tank 5. The mixture discharged from the injector 11 is in a state in which the ozone gas is dissolved in the treated water and / or in the state in which the undissolved ozone gas exists in the form of bubbles.

As used herein, the term 'mixture' shall be understood to mean a state in which the gas is dissolved in the fluid and / or a state in which the undissolved gas is in the form of bubbles.

The mixture of ozone gas and treated water flowing into the gas-dissolving tank 5 is discharged to the outside after the ozone gas is dissolved more in the treated water. The mixture discharged into the gas-dissolving tank 5 is supplied to the spray nozzle 7. [

The gas-dissolving tank 5 according to the embodiment of the present invention has a constitutional characteristic in which a plurality of gas layers are formed therein. With this feature, even if the pressure of the mixture flowing into the gas-dissolving tank 5 fluctuates, The inner pressure of the gas-dissolving tank 5 can be kept constant by finely adjusting the thickness (or the height) of the gas layer in accordance with the variation of the gas-dissolving tank 5.

Further, the gas dissolving tank 5 according to the embodiment of the present invention is lower in power of the pump 13 operating to provide the mixture to the gas-dissolving tank 5 than in the usual case low).

Further, the solubility of the ozone gas in the gas-dissolving tank 5 according to the embodiment of the present invention is increased because the gas-dissolving tank 5 has a gas layer.

The boil-off ozone gas disruptor 9 functions to destroy raw water discharged from the ozone reaction tank 1 (mixed with circulating water in which ozone is dissolved) and ozone gas in the treated water.

2 and 3 are views for explaining a gas dissolving tank according to an embodiment of the present invention.

2 and 3, the gas dissolving tank according to an embodiment of the present invention includes an inlet for introducing a mixture of gas and fluid, and an outlet for discharging a mixture of the introduced gas and fluid. For example, the inlet may be located below the gas-dissolving tank 5, and the outlet may be located above the gas-dissolving tank.

The gas-dissolving tank 5 according to the embodiment of the present invention has an internal space capable of storing a mixture of ozone gas and treated water, and has an inlet through which the mixture can be introduced into the lower portion and an inlet A main body 53 having an outlet capable of flowing out, at least one partition plate 51 (51a, 51b) located in the internal space of the main body 53, and a partition plate 51 (51a, 51b) 55a, 55b, 55c, 55d, 55e, 55f with a path through which the mixture can travel - an internal path.

The mixture present in the spaces defined by the partition plate plates 51 (51a, 51b) can be moved through the internal path of at least one through rod 55 (55a, 55b, 55c, 55d, 55e, 55f) have.

2 and 3, the gas-dissolving tank 5 includes two partition plate plates 51 (51a and 51b). However, the gas-dissolving tank 5 is illustratively one or three or more It is possible.

 The partition plate 51 (51a, 51b) divides the internal space of the main body 53 into an upper area and a lower area. For example, the partition plate 51a and the partition plate 51b are spaced apart from each other at upper and lower portions to divide the internal space of the main body 53 into three regions. Here, the three regions are referred to as a first region, a second region, and a third region for the purpose of explanation, the first region is an upper region than the second region, and the second region is a region And the third region is the region located in the lower portion of the second region.

In this embodiment, the first region and the second region are regions divided by the partition plate 51a, and the second region and the third region are regions divided by the partition plate 51b.

 Meanwhile, the partition plate 51 (51a, 51b) is moved to the upper region without passing through the at least one through rod 55 (55a, 55b, 55c, 55d, 55e, 55f) The upper region and the lower region can be completely isolated from each other.

For example, the first region and the second region are completely isolated from each other without passing through the penetration rods 55a, 55b, 55c coupled through the partition plate 51a. That is, the mixture in the second region can not be moved to the first region without passing through the through rods 55a, 55b, 55c. Further, the second region and the third region are completely isolated from each other without passing through the penetration rods 55d, 55e, and 55f that penetrate through the partition plate 51b. That is, the mixture in the third region can not be moved to the second region without passing through the through rods 55d, 55e, 55f.

In order to prevent the mixture from moving between these areas without passing through the through rods 55 (55a, 55b, 55c, 55d, 55e, 55f), the size of the partition plate 51 (51a, 51b) (5). For example, if the gas-dissolving tank 5 is formed in a cylindrical shape, the partition plates 51 (51a, 51b) are formed so that the outer peripheries of the partition plates 51 , 51b are determined.

The through rods 55a, 55b, 55c are configured to provide a path through which the mixture in the second region can be moved to the first region. The penetrating rods 55a, 55b and 55c penetrating through the partition plate 51a are divided into a first region divided by the partition plate 51a and a second region located in the second region, Thereby providing a path that can be moved to the first area. The length and diameter of the through rods 55a, 55b and 55c (the diameter of the path through which the mixture moves) become the gas layer (the space from the area indicated by h2 to the partition plate 51a) in the upper part of the second area. The length and the diameter of the through rods 55a, 55b and 55c (the diameter of the path through which the mixture travels) are set such that one end of the through rods 55a, 55b and 55c And the other end of the through rods 55a, 55b, 55c (the end located in the second region) is formed so as to be submerged in the mixture existing in the second region. On the other hand, the place denoted by h2 varies depending on the pressure of the mixture flowing into the main body 53. [

For example, one end of the through rods 55a, 55b, 55c is clogged and the other end is open and has a cylindrical shape with an inner space. One end portion of the through bars 55a, 55b and 55c is located so as to be submerged in the mixture existing in the upper region (for example, the first region), and the other end thereof is located in the lower region Lt; RTI ID = 0.0 > region). ≪ / RTI > At least one hole (h) communicating with the inside is formed at a portion of the through-bar (55a, 55b, 55c) having a closed end (for example, a portion located in the first region). The mixture located in the second region flows into the inner space through the open ends of the through rods 55a, 55b and 55c, and the mixture introduced into the inner space is moved to the first region through the hole h.

The length and / or the diameter of the through bars 55a, 55b and 55c are such that even if the mixture continues to flow into the second region which is the lower region, the mixture is not completely filled in the second region and a gas layer is formed below the partition plate 51a .

The through rods 55d, 55e, 55f are configured to provide a path through which the mixture in the third region can be moved to the second region. The penetrating rods 55d, 55e and 55f penetrating through the partition plate 51b are arranged in a second region divided by the partition plate 51b and a third region in the third region, Thereby providing a path that can be moved to the second area. The length and diameter of the through rods 55d, 55e and 55f (the diameter of the path through which the mixture moves) become the gas layer (the space from the portion indicated by h1 to the partition plate 51b) in the upper portion of the third region. The length and the diameter of the through rods 55d, 55e and 55f (the diameter of the path through which the mixture travels) are set such that one end of the through rods 55d, 55e and 55f (the end positioned in the second region) And the other end of the through rods 55d, 55e, 55f (end portion located in the third region) is formed so as to be submerged in the mixture existing in the third region. On the other hand, the location denoted by h1 varies depending on the pressure of the mixture flowing into the main body 53. [

For example, one end of the through rod 55d, 55e, 55f is closed and the other end is open and has a cylindrical shape with an inner space. One end portion of the through rods 55d, 55e and 55f is located so as to be submerged in the mixture existing in the upper region (for example, the second region), and the other end thereof is located in the lower region Lt; RTI ID = 0.0 > region). ≪ / RTI > At least one hole communicating with the inside is formed at a portion of the through-bar 55d, 55e, 55f which is closed at one end (for example, a portion located in the second area). The mixture located in the third region flows into the inner space through the open ends of the through rods 55d, 55e and 55f, and the mixture introduced into the inner space is moved to the second region through the holes.

The length and / or the diameter of the through bars 55d, 55e and 55f are such that the mixture is not completely filled in the third region and the gas layer is formed in the lower portion of the partition plate 51b even if the mixture continues to flow into the third region, .

2 and 3, according to the present embodiment, the first partition plate 51a is located on the upper portion of the second partition plate 51b, and the gas layer A second partition plate 51b, a gas layer positioned below the second partition plate 51b, and a second partition plate 51b located below the second partition plate 51b. A mixture of ozone gas and treated water located in the lower portion of the gas layer is hierarchically positioned.

Although the gas dissolving tank described with reference to Figs. 1 to 3 has been described by taking ozone gas and treated water (water) as an example, it can be used for dissolving a gas (for example, air) other than ozone gas in water There is also. That is, the gas dissolving tank according to the embodiment of the present invention can be used to dissolve any gas in any fluid (liquid).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And variations are possible.

1: ozone reaction tank 3: ozone gas generator
5: Gas dissolving tank 7: Spray nozzle
9: Ozone gas destruction part of the boat 11: Injector
13: Pump
19: Apparatus for treating contaminants floating above the ozone reaction tank (1)
51, 51a, 51b: partition plate
53: main body 55: penetrating rod

Claims (10)

In the gas-dissolving tank 5,
A main body 53 having an inner space capable of storing a mixture of gas and fluid, and having an inlet for receiving the mixture at a lower portion and an outlet for discharging the mixture to the outside at an upper portion than the inlet;
At least one partition plate (51) located in an inner space of the main body; And
At least one penetrating rod 55 penetrating through the partition plate 51 and having an inner space through which the mixture can move; / RTI >
Wherein the mixture existing in the spaces defined by the at least one partition plate plate (51) is moved through an inner space of the at least one through rod (55). The method according to claim 1,
Wherein the at least one partition plate (51) divides the internal space of the main body (53) into an upper region and a lower region. 3. The method of claim 2,
The at least one partition plate (51) is arranged such that the mixture present in the lower region can not be moved to the upper region without passing through the at least one through rod (55) And completely isolating the gas. The method of claim 3,
The through rod (55) has a cylindrical shape with one end closed and the other end open, the one end being clogged is located in the upper region, the other end being open is located in the lower region, And at least one hole communicating with the inner space is formed in the one end portion of the gas dissolving tank. 5. The method of claim 4,
The length and / or the diameter of the through-rod 55 are adjusted such that the fluid is not completely filled in the lower region even though the fluid continues to flow into the lower region, and a gas layer is formed under the partition plate. Gas melting tank. 6. The method of claim 5,
The length and / or volume of the portion of the through-rod 55 located in the upper region and the length and / or volume of the portion of the through-rod 55 located in the lower region are continuously increased And a gas layer is formed in a lower portion of the partition plate (51) without completely filling the lower region with the fluid. 5. The method of claim 4,
Wherein a gas layer is disposed below the partition plate (51), and a mixture of the gas and the fluid is positioned below the gas layer. 8. The method of claim 7,
A plurality of the partition plates 51 are provided,
The plurality of partition plates include a first partition plate 51a and a second partition plate 51b,
The first partition plate 51a is located above the second partition plate 51b,
A gas layer positioned below the first partition plate 51a, a mixture of gas and fluid located under the gas layer, a second partition plate 51b, and a second partition plate 51b, Gas layer and a mixture of gas and fluid located in a lower portion of the gas layer positioned under the second partition plate 51b are hierarchically positioned. In a wastewater treatment and water treatment system using ozone gas,
Wherein at least one partition wall is provided in the partition wall and the wastewater flows into any one of the areas partitioned by the partition wall so that the inflow wastewater is discharged to the outside through another area out of the areas partitioned by the partition wall A configured ozone reaction tank 1;
A gas melting tank (5) according to any one of claims 1 to 8; And
And an injection nozzle (7) arranged below any one of the regions partitioned by the partition wall for spraying bubbles,
The gas-dissolving tank 5 receives a part of the treated water discharged from the ozone reaction tank 1 and discharges the treated water to the outside,
Wherein the injection nozzle (7) receives the treated water discharged from the gas dissolving tank (5) and injects bubbles into the ozone reaction tank (1). 10. The method of claim 9,
And an injector (11) for receiving ozone gas and a part of the treated water discharged from the ozone reaction tank (1).
KR1020150114777A 2015-08-13 2015-08-13 Gas dissolution tank and waste-water treatment and furifying system using the same KR20170020078A (en)

Priority Applications (1)

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KR1020150114777A KR20170020078A (en) 2015-08-13 2015-08-13 Gas dissolution tank and waste-water treatment and furifying system using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150114777A KR20170020078A (en) 2015-08-13 2015-08-13 Gas dissolution tank and waste-water treatment and furifying system using the same

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