KR100578524B1 - Sludge materials treatment apparatus using ozone and ultraviolet rays - Google Patents

Abstract

The present invention relates to an apparatus for treating harmful substances using ozone and ultraviolet rays using ultraviolet rays having a high ozone decomposition rate during ultraviolet ray irradiation by completely removing bubbles generated by mixing ozone in treated water containing organic substances. The present invention and the first water barrier to block the incoming raw water to the inlet and outlet; A primary raw water supply device consisting of a primary inlet for sucking raw water introduced into the waterway from the inlet, a primary pump for helping raw water to be sucked into the primary inlet, and ozone that is sucked into one side and inflowed into the other side. A primary vacuum tube for discharging, a primary ejector connected to the primary raw water supply device and a primary vacuum tube to mix ozone in the raw water, a primary critical tube for injecting ozone water mixed in the primary ejector, The first and second sides of the primary aeration tube cover the outside of the primary critical tube and the lower portion extends to the outlet, and the primary aeration tube located at the top of the primary critical tube to collect the vaporized ozone gas A treatment apparatus including an ozone collecting unit, wherein the inside of the primary aeration tube surrounds the lower portion of the primary critical pipe and extends to the lower portion of the primary ozone collecting unit to have a "U" -shaped primary drip tray and a primary drip tray. And primary width Between the barrel is formed with a ultraviolet lamp for generating ultraviolet rays, it characterized in that the drain hole provided on the bottom of the primary water receptacle.

Hazardous Substances, Dioxins, Ozone, Ultraviolet Rays, Bubbles

Description

SLOMGE MATERIALS TREATMENT APPARATUS USING OZONE AND ULTRAVIOLET RAYS}             

1 is a cross-sectional view of a conventional treatment apparatus using ozone and ultraviolet light.

2 is a perspective view of an apparatus for treating hazardous substances using ozone and ultraviolet rays according to an embodiment of the present invention.

3 is a cross-sectional view of FIG.

4 is an internal cross-sectional view of the ejector according to the present invention.

5 is a cross-sectional view of the operation of the aeration container according to the present invention.

6 is a perspective view of an apparatus for treating hazardous substances using ozone and ultraviolet rays according to another embodiment of the present invention.

7 is a cross-sectional view of FIG. 6.

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

1: Water supply pipe (Sewage pipe) 2: Primary water barrier

3: primary inlet port 4: primary pump

5: Primary pipe line 6: Primary ejector

7: primary hydraulic gauge 8: sensor

9: primary critical pipe 10: primary aeration container

11: primary ozone collecting unit 12: primary vacuum tube

13: 1st negative pressure gauge 14: 1st drip tray

15 monitor 16 ultraviolet lamp

23: secondary inlet 24: secondary pump

25: secondary pipeline 26: secondary ejector

27: 2nd pressure gauge 29: 2nd critical pipe

30: secondary aeration container 31: secondary ozone collecting unit

32: 2nd vacuum tube 33: 2nd negative pressure meter

34: secondary drip tray 35: ozone decomposing device

36: 3rd vacuum tube 41: static mixer

42: secondary water barrier

The present invention removes ozone bubbles while moving ozone water containing ozone bubbles from the bottom while dissolving ozone in the raw water, and ozone dissolved in ozone water by exposing to ozone while moving ozone water from which ozone bubbles are removed from the top to the bottom. The present invention relates to ozone using ultraviolet rays having high ozone decomposition rate upon ultraviolet ray irradiation by decomposing into OH radicals, and a hazardous substance treatment apparatus using ultraviolet rays.

Currently, measures to deal with harmful substances including environmental hormones on the planet are being questioned. As a typical example, dioxins are a type of environmental hormone composed of several compounds with similar toxicity. Dioxins, long known as polychlorated dibenzo-p-dioxin (PCDDs), have 75 isomers, and polychlorinated dibenzofuran (PCDFs), one of the dioxin analogues, has 135 isomers. . Another analogue, PCBs, has 209 isomers, and dioxins generally refer to dioxin and furan in the stomach. Other similar substances include DDTs and HCB. Toxic are 7 of 75 dioxins, 10 of 135 polybenzoic dichlorides, and 28 of 209 PCBs. Thus, 17 out of 210 dioxins and 45 of 419 are highly toxic if combined with other major analogues.

Dioxins circulating in the environment generate 98.8% of garbage containing organic chlorine compounds such as PCBs (polychlorinated biphenyls), especially when burning hospital waste (61.9%) and municipal waste (36.5%). Trace amounts are also produced in the process of manufacturing pulp, paper and PVC, refining of metals, tobacco smoke, automobile emissions and waste water.

Once released, dioxin contaminates foods such as agricultural products and seafood, enters the human body through these foods, and there is a circulation path through which dioxin is released into the environment by human waste. In addition, the excrement containing harmful substances such as dioxins is concentrated in a manure treatment plant or a public sewer, or flows into the river from a single septic tank and a merged septic tank nationwide, and also flows into the sea.

Dioxins bind to a site in the tissue called the Ah receptor (Ah recepter) in the human body that causes health problems. Once produced in nature, it does not decompose well and remains stable, and when introduced into organisms, it is not excreted. Insoluble in water but soluble in fat, it accumulates in the fatty tissue of organisms. When dioxin enters the human body, it damages the liver and kidneys, lowers immunity, skin disease, cancer, birth defects, genetic abnormalities, personality disorders, and emotional anxiety. In particular, the genotoxicity tends to be evident only after several to several decades or when children and grandchildren become children. Once a symptom occurs, it is characterized by catastrophic damage with almost no signs of recovery.

Reducing the amount of dioxins generated is not enough to reduce the amount of dioxins present in the environment. The reason is that the dioxin once generated is circulating in the environment without disappearing. Therefore, the amount of dioxins present in the natural world cannot be reduced unless the amount of dioxins generated is suppressed and the dioxins circulating in this environment are not destroyed.

In order to remove such dioxin, Korean Patent Publication No. 2001-0089727 discloses oxidative decomposition of harmful substances contained in treated sewage by contacting microbubble ozone with the treated sewage containing dioxins and PCBs. A technique for irradiating ultraviolet light to the treated sewage after ozone treatment containing residual ozone that does not act on oxidative decomposition has been proposed.

However, Korean Patent Publication No. 2001-0089727 discloses that the residence time of ozone in contact with the sewage is increased because the ozone bubbled in the sewage is contacted for a long time to remove harmful substances contained in the sewage by using the oxidizing power of the ozone. It takes a long time to deal with harmful substances long. In addition, even if the raw water is irradiated with ultraviolet rays, the ultraviolet rays do not penetrate the entire sewage due to the bubbles of ozone, and only ozone on the side from which the ultraviolet rays are projected is decomposed into hydrogen peroxide and OH radicals, resulting in high decomposition efficiency of dioxins and the like. The farther away from the projected point, there is a problem that the decomposition efficiency of dioxins and the like is reduced.

In order to solve this problem, as shown in FIG. 1, dioxins are generated by generating ultraviolet peroxide and OH radicals by projecting ultraviolet rays with an ultraviolet lamp mounted on the outside of the aeration tank while injecting ozone into the treated water at the bottom of the aeration tank. The technology to remove various harmful substances including

However, since this technology mixes the treated water and ozone in the lower part of the aeration tank and supplies it to the aeration tank, the ozone mixed inside the aeration tank generates a large amount of air bubbles and is reflected by the air bubbles when the ultraviolet rays are projected, thereby allowing the inside of the aeration tank. There is a problem that can not reach evenly to remove the organic material in a certain ratio. In addition, since the processing of organic substances due to ozone and the decomposition of ozone due to ultraviolet rays are performed at the same time, residues of organic substances not decomposed by ozone are attached to the outer wall of the ultraviolet lamp to reduce the permeability of ultraviolet rays, There is a problem in that additional cost for processing.

An object of the present invention devised to solve the above problems is to remove the ozone bubbles while moving the ozone water containing ozone bubbles from the bottom to the top while dissolving ozone in the raw water, the ozone water from which the ozone bubbles are removed from the bottom The present invention provides an apparatus for treating harmful substances using ozone and ultraviolet rays by using ultraviolet rays having high ozone decomposition rate during ultraviolet ray projection by decomposing ozone dissolved in ozone water into OH radicals while exposing to ultraviolet rays while moving to.

An apparatus for treating hazardous substances using ozone and ultraviolet rays according to the present invention for achieving the above object includes: a first water barrier to block incoming raw water into an inlet and an outlet; A primary raw water supply device consisting of a primary suction port for sucking the raw water introduced into the waterway from the inlet, and a primary pump for helping the raw water to be sucked into the primary suction port, and ozone is sucked to one side and flowed into the other side. A primary vacuum tube for discharging ozone, a primary ejector connected to the primary raw water supply device and a primary vacuum tube to mix the ozone with the raw water, and ozone water mixed in the primary ejector at the discharge unit A primary critical pipe for injecting the upper and side surfaces surrounding the outside of the primary critical pipe and having a lower portion extending to the discharge part, and positioned at an upper portion of the primary aeration container In the hazardous substance processing apparatus comprising a primary ozone collecting unit for collecting the vaporized ozone gas while passing through the pipe,
Inside the primary aeration vessel, a "U" shaped primary drip tray extending to the lower portion of the primary ozone collecting unit while surrounding the lower portion of the primary critical pipe, and an ultraviolet ray between the primary drip tray and the primary aeration cylinder. Ultraviolet lamp for generating a light is formed, the hazardous material treatment apparatus using ozone and ultraviolet light, characterized in that the drain is installed on the bottom of the primary drip tray.

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

2 is a perspective view of the apparatus for treating hazardous substances using ozone and ultraviolet rays according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of FIG. 2, FIG. 4 is an internal cross-sectional view of the ejector according to the present invention, and FIG. 6 is a cross-sectional view of an apparatus for treating hazardous substances using ozone and ultraviolet rays according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view of FIG.

With reference to Figures 2 to 5, it looks at in detail with respect to the apparatus for treating harmful substances using ozone and ultraviolet light according to an embodiment of the present invention.

2 to 3, when raw water flows into the tap water or sewage pipe 1, the primary pump 4 is operated to suck the raw water into the primary suction port 3, and the sucked raw water is pumped 23M. It flows into the primary ejector 6 via the primary pipe 5 at a pressure of 25 to 25M. At this time, the primary hydraulic pressure gauge 7 installed on one side of the primary pipe checks the pressure of the raw water passing through, and when the checked raw water pressure is out of the reference range, the sensor installed on one side of the primary hydraulic gauge 7 ( 8) to stop the operation of the processing unit automatically.

On the other hand, ozone mixed in the raw water is introduced into the primary ejector 6 through the primary vacuum tube 12, the incoming ozone is ozone gas having a concentration of 3% (30,000ppm) to 12% (120,000ppm). It is preferable. At this time, the concentration of ozone flowing into the ejector may be confirmed by the monitor 15 installed at one side of the primary vacuum tube 12.

As shown in FIG. 4, the primary ejector 6 includes an ejector reduction tube 43 in which an upper neck portion connected to the primary conduit 5 is gradually reduced and a lower neck portion connected to a primary critical tube to be described later. It consists of an inlet pipe 45 through which the ozone discharged from the primary vacuum tube 12 is introduced between the ejector enlarged tube 44 and the ejector enlarged tube 43 and the ejector enlarged tube 44 which are gradually enlarged. Therefore, when the raw water flowing into the primary ejector 6 through the primary pipe passes through the reduced portion of the ejector reduction pipe 43, the flow rate becomes very fast, and a vacuum phenomenon (hereinafter, referred to as a critical phenomenon) is instantaneously obtained. Generated, and strongly sucks and mixes ozone introduced into the suction pipe (45). Here, the critical phenomenon is the pressure of the raw water supplied to the primary ejector 6 (hereinafter referred to as "positive pressure") and the pressure of ozone sucked by the raw water flowing into the primary ejector 6 (hereinafter referred to as "negative pressure"). ), Which means that the inside of the first critical tube is instantaneously vacuumed and the raw water passing through the inside is instantaneously exploded, which may be regarded as a kind of "cavitation" described above. This critical phenomenon is more actively generated by the action of the pressure and velocity of ozone flowing into the primary critical tube (9).

On the other hand, to the primary negative pressure meter 13 installed on one side of the primary ejector 6, the negative pressure to inhale the raw water by the positive pressure of ozone flowing through the primary vacuum tube 12 and the raw water flowing through the primary pipe line By measuring this, the pressure and velocity of the raw water and ozone can be adjusted to facilitate the "cavitation" phenomenon.

Subsequently, the ozone water passing through the ejector enlargement tube 44 passes through the neck portion which is gradually enlarged, and the strong flow rate changes to pressure, so that the mixed ozone is dissolved under pressure, and the dissolved ozone is mixed with the oxidized substances and organic substances contained in the raw water. React and sterilize.

Through the above process, ozone water in which ozone is sucked and mixed in the primary ejector 6 is connected to the primary critical pipe 9 extending inward from the upper portion of the primary aeration tube 10 installed in the discharge unit 17. The ozone water discharged through is hit by the "U" shaped primary drip tray 14 installed in the lower part of the primary critical pipe 9 to be decomposed into fine water molecules and mixed with the unmixed ozone gas. The ozone gas which is not mixed while moving to the upper portion of the primary drip tray 14 is formed into bubbles and is collected by the primary ozone collecting unit 11 on the upper portion of the primary aeration vessel 10 installed in the discharge unit, and the secondary vacuum tube ( Through 32). Through this process, oxides and organic substances contained in raw water are completely sterilized by reacting with ozone.

As shown in FIG. 5, the ozone water that has hit the primary drip tray 14 moves upward along the “U” shaped hole, while the small bubbles contained in the ozone water collide with each other and increase to an increasingly larger bubble. It is collected in (11). Meanwhile, ozone water from which bubbles are removed flows down between the primary drip tray 14 and the primary aeration cylinder 10, and is generated by the ultraviolet lamp 16 installed between the primary drip tray 14 and the aeration cylinder 10. Exposed to ultraviolet rays. Ozone exposed to ultraviolet rays reacts with water to form hydrogen peroxide (H ₂ O ₂ ) as an intermediate. The OH radical formed by the decomposition of ozone is completely removed by reaction with residual organic materials including dioxins with strong oxidizing power due to high redox potential. Alternatively, the hydrogen peroxide produced together is decomposed into water and oxygen, which are harmless to the human body. On the other hand, the primary drip tray 14 can be used by adjusting the size, such as using a large diameter when the pollution of the raw water to be treated is severe, and having a small diameter when the contamination is small.

The treated water passing through the ultraviolet lamp 16 is discharged to the outside through the discharge unit 17 located in the lower portion of the primary aeration tube 10. At this time, the secondary water barrier 42 may be formed to be discharged after a predetermined amount of discharge water flows into the discharge unit 17, and passes through the static mixer 41 so that the discharge water is evenly mixed under the discharge unit 17. can do. At this time, when the raw water is not supplied to the inlet unit 1 by installing a recirculation unit 19 for feeding back the water of the discharge unit 17 back to the inlet unit 1 in the upper portion of the primary water barrier (2) It is desirable to allow the to work.

On the other hand, the lower portion of the primary drip tray 14 is treated with ozone, and the debris changed into a gel or a solid substance is discharged to the outside through the drain 18. When the drain 18 is formed to have a diameter of about 2 cm in the lower side of the primary drip tray 14, a swirl wave is generated inside the primary drip tray 14 even without closing the drain 18 with a lid to form a gel or a solid material. This is released naturally.

By this process, raw water containing dioxins is primarily dissolved in ozone to remove organic substances that can be treated with ozone, and is exposed to ultraviolet rays when the bubbles of raw water are completely removed while passing through the primary drip tray. The amount of ozone decomposed is increased, which can generate a large amount of · OH radicals, thereby significantly increasing the treatment rate of hardly decomposable toxic substances including dioxins.

Referring to Figures 6 and 7 looks at in detail with respect to the apparatus for treating harmful substances using ozone and ultraviolet light in accordance with another embodiment of the present invention.

For the treatment of ozone collected by the primary ozone collecting unit 11 on the upper part of the primary pipe 10

As shown, the ozone reprocessing apparatus collected by the ozone collecting unit is installed in the apparatus for treating hazardous substances using ozone and ultraviolet rays according to the first embodiment.

That is, the secondary pump 24 is operated to suck raw water from the tap water or sewage pipe 1 through the secondary suction port 23, and the sucked raw water is transferred to the secondary ejector 26 through the secondary pipe 25. Inflow. At this time, the pressure of the raw water flowing into the secondary ejector 26 is checked by the secondary hydraulic gauge 27 installed on one side of the secondary pipeline.

On the other hand, the ozone collected in the primary ozone collecting unit 11 is introduced into the secondary ejector 26 through the secondary vacuum tube 32 and the action of the strong pressure and speed of the raw water passing through the secondary critical tube 29. It is sucked by the vacuum phenomenon generated as and mixed and dispersed in raw water. The secondary ejector 26 has the same shape as the primary ejector 6 described above, and a pump may be installed in the secondary vacuum tube in order to adjust the pressure of the introduced ozone.

In the secondary ejector 26, the same action as the primary ejector causes a critical phenomenon to occur at the strong pressure and speed of the raw water flowing into the secondary ejector 26. The raw water flowing into the secondary ejector through the ozone is strongly suctioned and mixed in the same way as the primary ejector, causing a "cavitation" phenomenon. At this time, the secondary negative and negative pressure measuring device 33 installed on one side of the secondary ejector 26 measures the positive pressure of the ozone flowing through the secondary vacuum tube 32 and the negative pressure of the raw water flowing through the secondary pipe. "You can adjust the speed and pressure of the raw water to make it happen.

Through this process, ozone water in which ozone is sucked and mixed in the secondary ejector 26 is introduced into the secondary critical pipe 29 extending from the upper portion of the secondary aeration vessel 30 installed in the inlet 1 of raw water. ) Is released. The ozone water collides with the unmixed ozone gas as it decomposes into fine water molecules by hitting the "U" shaped secondary drip tray 34 installed in the lower part of the secondary critical pipe 29. The gas not mixed is formed into bubbles and is discharged to the outside through the secondary ozone collecting unit 31 formed on the secondary aeration vessel 30.

Through such a process, ozone water containing a large amount of ozone passes through the secondary critical pipe (29), is discharged into the tap water or sewage pipe (1), mixed with raw water that does not pass through the device, and is dissolved by ozone dissolved in the ozone water. Sterilization occurs in raw water.

The ozone water moved to the upper part of the secondary drip tray 34 flows between the outside of the secondary drip tray 34 and the secondary aeration tank 30 in the state where the ozone gas is removed, and the secondary drip tray 34 and the aeration tank are discharged. It is exposed to the ultraviolet rays generated by the ultraviolet lamp 16 provided between the 30. Ozone exposed to ultraviolet rays reacts with water to form hydrogen peroxide (H ₂ O ₂ ) as an intermediate. The OH radical formed by the decomposition of ozone is completely removed by reaction with residual organic materials including dioxins with strong oxidizing power due to high redox potential. Alternatively, the hydrogen peroxide produced together is decomposed into water and oxygen, which are harmless to the human body.

On the other hand, the gas collected in the secondary ozone collecting unit 31 for the complete treatment of ozone that is not completely mixed in the secondary ejector 26 is the tertiary vacuum tube 36 extending from the upper portion of the secondary ozone collecting unit 31. After passing through), activated carbon (not shown) enters the built-in ozone decomposing device 35 and is completely removed and is released as purified oxygen. At this time, an ozone check sensor (not shown) and a monitor 15 "for confirming this may be installed at one side of the secondary ozone collecting unit 31 to check the concentration of ozone contained in the gas flowing into the ozone decomposing device. .

Through this process, by treating a large amount of ozone collected from the primary ozone collecting unit and extracting the raw water pulled from the inlet to the inlet again, ozone can be treated without having a separate ozone facility. The concentration of pollutants can be lowered by removing organic materials and dioxins, which are difficult to decompose.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions and modifications by those skilled in the art to which the present invention pertains may be made without departing from the technical spirit of the present invention. And variations are considered to be within the scope of the present invention.

According to the present invention, the raw water passing through the water and sewage pipe is exploded due to the cavitation phenomenon, and contaminants are oxidized and decomposed, and the raw water is injected into the ozone to increase the dissolution rate of the ozone, while moving the ozone water containing the ozone bubbles from the bottom to the top. There is an advantage that can remove the ozone bubbles.

In addition, when moving the bubble-free ozone water from the top to the bottom, it irradiates ultraviolet rays and decomposes ozone contained in the ozone water into hydrogen peroxide (H ₂ O ₂ ) and · OH radicals regardless of the distance where the ultraviolet lamp is installed. There is an advantage that can increase the degradability of the degradable harmful substances.

In addition, since there is no need to process the various harmful substances contained in the raw water, there is an advantage that can process the raw water in real time.

In addition, by reprocessing the raw water using a small amount of residual ozone, there is no need to install a separate residual ozone facility to prevent environmental pollution due to residual ozone, and has the advantage of significantly reducing the cost of equipment and maintenance.

Claims (9)

delete delete delete A first water barrier to block the incoming raw water into the inlet and the outlet; A primary raw water supply device consisting of a primary suction port for sucking the raw water introduced into the waterway from the inlet, and a primary pump for helping the raw water to be sucked into the primary suction port, and ozone is sucked to one side and flowed into the other side. A primary vacuum tube for discharging ozone, a primary ejector connected to the primary raw water supply device and a primary vacuum tube to mix the ozone with the raw water, and ozone water mixed in the primary ejector at the discharge unit A primary critical pipe for injecting the upper and side surfaces surrounding the outside of the primary critical pipe and having a lower portion extending to the discharge part, and positioned at an upper portion of the primary aeration container In the hazardous substance processing apparatus comprising a primary ozone collecting unit for collecting the vaporized ozone gas while passing through the pipe, Inside the primary aeration vessel, a "U" shaped primary drip tray extending to the lower portion of the primary ozone collecting unit while surrounding the lower portion of the primary critical pipe, and an ultraviolet ray between the primary drip tray and the primary aeration cylinder. Ultraviolet lamp for generating a light is formed, the hazardous material treatment apparatus using ozone and ultraviolet light, characterized in that the drain is installed on the bottom of the primary drip tray. delete delete delete delete delete

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