KR102153740B1 - Ejector-coupled deodorizer using wet photocatalyst - Google Patents

Abstract

An object of the present invention is to provide an ejector-coupled deodorizer using a wet photocatalyst in which malodorous substances are continuously decomposed while undergoing a combination aeration of catalyst water and a malodorous gas and a chemical recycling process using a wet photocatalyst. That is, the present invention includes: a deodorization tank (10) in which catalyst water is stored and a treated gas exhaust pipe (12) is provided thereon; a pumping means (20) provided with a pump (22) and outlet and inlet lines (24, 26) to forcibly circulate the catalyst water stored in the deodorization tank (10); an ejector unit (30) installed in the inlet line (26) of the pumping means (20) and provided to mix and aerate the catalyst water and the malodorous gas sucked from a sewage treatment unit (100); and a photocatalyst means (40) installed inside the deodorization tank (10) and provided to decompose malodorous substances by oxidation reaction with a UV lamp. The ejector-coupled deodorizer using the wet photocatalyst has an advantage of improving malodor treatment efficiency by allowing the malodorous gas to be sucked by injection pressure of the forcibly circulated catalyst water, and to be mixed and aerated in the deodorization tank, and undergoing a complex chemical recycling process in which malodorous substances collected in the catalyst water are continuously decomposed by photocatalytic oxidation reaction, thereby enabling continuous operation for a long time.

Description

Ejector-coupled deodorizer using wet photocatalyst}

The present invention relates to an ejector-coupled deodorization device using a wet photocatalyst, and more specifically, a wet type in which odor substances are continuously decomposed while undergoing a combination aeration of catalyst water and odor gas and chemical recycling by a wet photocatalyst. It relates to an ejector-coupled deodorizing device using a photocatalyst.

In general, significant odor gases are emitted from sewage treatment plants, manure treatment plants, or industrial water pollution prevention facilities, which are basic environmental facilities. Among these odor gas components, substances that cause odor are mainly sulfur compounds such as hydrogen sulfide and mercaptan, nitrogen compounds such as ammonia or amine, and volatile organic compounds including benzene, toluene, ethylbenzene, and xylene. VOC) or Volatile Sulfur Compounds. That is, the odor components are very diverse, and the concentration of the odor components is also changed from time to time, making it difficult to purify the odor gas.

Accordingly, in Patent Registration No. 10-1160924 disclosed in the prior art, a connection part connected to a sewage pipe so that odor gas generated from sewage flows in; Ultraviolet light decomposition unit for photodecomposition by irradiating ultraviolet rays to malodorous gas; An ozone oxidation processing unit for oxidizing the odor gas by mixing ozone with the photo-decomposed odor gas; And a technology for decomposing hydrogen sulfide remaining in the odor gas after photolysis of the ultraviolet photolysis unit has been previously registered.

However, the prior art photodecomposes pollutants contained in malodorous gases, oxidizes them with ozone, converts them into harmless substances, and finally removes hydrogen sulfide, but it is a structural technique that removes malodors by performing a plurality of processes in stages. Due to its characteristics, there was a problem that the odor removal efficiency was lowered due to reverse flow of odor gas and poor transport.

In the registration number 10-1656671, which is another prior art, an individual collection pipe that collects and transports odor in a treatment tank such as a filtration tank, a precipitation tank, a concentration tank, or a storage tank, and the individual collection pipe connected to the plurality of individual collection pipes. It comprises a main collection pipe that collects the transported odor and transports it to the deodorizer, an inhaler that provides a transport force for odors inherent in the main collection pipe, and a deodorizer that filters the odor transported from the inhaler. Although the technology in which a backflow prevention member is installed at the connection between the collection pipe and the main collection pipe has been previously registered, there are many restrictions on the installation site due to the enlargement of the deodorization equipment, and in particular, periodically replace the purified water in the deodorizer or replace the adsorption filter. Due to the maintenance work that must be done, it was impossible to operate continuously for a long time.

KR No. 10-1160924 B1 (2012.06.22.) KR No. 10-1656671 B1 (2016.09.06.)

In the present invention, in order to solve all the problems of the prior art, a new technology was invented.The odor gas is sucked in by the injection pressure of the forcibly circulated catalyst water, and the odor gas is mixed and aerated in the deodorization tank and collected in the catalyst water through the photocatalytic oxidation reaction Its purpose is to provide an ejector-coupled deodorization device using a wet photocatalyst that enables long-term continuous operation while continuously decomposing chemical recycling processes in which the odorous substances are continuously decomposed.

In the present invention as a specific means for solving the problem of the above-described invention, a deodorization tank (10) comprising an ejector-coupled deodorization device using a wet photocatalyst, wherein the catalyst water is stored, and a process gas exhaust pipe (12) is provided at the top; A pumping means (20) provided with a pump (22) and outflow and inflow lines (24) (26) to forcibly circulate the catalyst water stored in the deodorization tank (10); An ejector unit 30 installed in the inlet line 26 of the pumping means 20 and provided to mix and aerate the catalyst water and the malodorous gas sucked from the sewage treatment unit 100; And a photocatalyst means 40 installed inside the deodorizing tank 10 and provided to decompose malodorous substances by oxidation reaction with the UV lamp.

At this time, the deodorization tank 10 is connected to the outlet port 24a connected to the outlet line 24 of the pumping means 20 and the inlet line 26 of the pumping means 20 on the bottom surface to inflow catalyst water. The inlet port (26a) is provided, and the inlet port (26a) is characterized in that the inlet port (26a) is arranged in a plurality of places radially around the outlet port (24a).

In addition, the ejector unit 30 has the injection port 32 installed upward in a state immersed in the catalyst water, and a diffusion plate 34 is installed in front of the injection port 32 to disperse the catalyst water mixed and aerated in all directions. The diffusion plate 34 has a downwardly inclined portion 35 formed at the edge thereof, and the catalyst water mixed and aerated through the injection port 32 by the downwardly inclined portion 35 diffuses downward and floats, It characterized in that it is provided to extend the reaction time with.

In addition, the ejector unit 30 and the odor gas supply source 100 are connected by a multi-gas pipe 36, and the multi-gas pipe 36 is a backflow prevention section 36a that is bent so as to pass over the surface of the catalyst water inside the aeration tank 10. ) Characterized in that it is provided.

In addition, the deodorizing tank 10 is supported apart from the ground by a support member 14 installed at the bottom, and a lower compartment 14a is formed so that the pumping means 20 is accommodated in the support member 14, A cover member 16 is installed on the top of the deodorization tank 10, and an upper compartment 16a is formed so that a processing gas exhaust pipe 12 and a control panel are installed in the cover member 16.

According to a specific means for solving the above-described problem, the present invention provides a mixture of and aeration in the deodorization tank by suction of odor gas by the injection pressure of the forcibly circulating catalyst water, and the odor substances collected in the catalyst water by the photocatalytic oxidation reaction are continuously maintained. It is possible to continuously operate for a long time while undergoing a complex chemical recycling process that is decomposed, thereby improving the efficiency of odor treatment.

1 is an overall configuration diagram showing an ejector-coupled deodorizing device using a wet photocatalyst according to an embodiment of the present invention.
2 is an enlarged view showing an internal structure of a deodorizing tank of an ejector-coupled deodorizing device using a wet photocatalyst according to an embodiment of the present invention.
3 is a block diagram showing an arrangement structure of an ejector unit of an ejector-coupled deodorizing apparatus using a wet photocatalyst according to an embodiment of the present invention.
4 is a block diagram showing a state in which an ejector-coupled deodorizing device using a wet photocatalyst according to an embodiment of the present invention is applied to a sewage treatment unit.

Hereinafter, with reference to the accompanying drawings will be described in detail for the implementation of the present invention. In the description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters that are apparent to those skilled in the art with respect to known functions related to the present invention, detailed description thereof will be omitted.

In the ejector-coupled deodorization device using a wet photocatalyst provided by the present invention, the odor gas is sucked by the injection pressure of the forcibly circulating catalyst water, and the odor gas is mixed and aerated in the deodorization tank, and the odor substances collected in the catalyst water by the photocatalytic oxidation reaction are continuously maintained. A deodorizing tank 10, a pumping means 20, an ejector unit 30, and a photocatalyst means 40 are used to improve odor treatment efficiency by allowing continuous operation for a long time while undergoing a complex chemical recycling process that is decomposed. It consists of major components including.

The deodorization tank 10 according to the present invention stores catalyst water, and a process gas exhaust pipe 12 is provided thereon. The deodorizing tank 10 is supplied and replenished with catalyst water including water through a water supply pipe 11, and a visible window for visually checking the internal state is provided on the side. In addition, the level of the catalyst water inside the deodorization tank 10 is detected by a water level gauge (sensor), and when the level of the catalyst water is detected below the level set in the control unit, the catalyst water is replenished through the water supply pipe 11.

At this time, the catalyst water is maintained at a water level of 70 to 80% of the total capacity of the deodorization tank 10, and an empty space for gas collection is formed at the top. In addition, the empty space in the deodorization tank 10 is connected to the exhaust pipe 12 to discharge the processed gas from which the odor is removed, and a diffuser and a roof are installed on the upper part of the exhaust pipe 12 so that the external environment (snow, rain, It is safely protected from wind).

In FIG. 1, the deodorizing tank 10 is spaced apart from the ground by a support member 14 installed at the bottom, and a lower compartment 14a to accommodate a pumping means 20 to be described later in the support member 14. Is formed, the cover member 16 is installed above the deodorization tank 10, and the upper compartment 16a is formed so that the processing gas exhaust pipe 12 and the control panel are installed inside the cover member 16.

In this way, as it is compactly formed in a tower shape by the support member 14 provided under the deodorization tank 10 and the cover member 16 provided at the upper part, it has excellent workability regardless of the location, and in particular, the multi- The gas pipe 36 and the pumping means 20 are isolated and accommodated in the lower compartment 14a of the support member 14, so that even if the odor gas and the catalyst water leak, external diffusion is blocked to ensure safety.

The pumping means 20 according to the present invention is provided with a pump 22 and outflow and inflow lines 24 and 26 to forcibly circulate the catalyst water stored in the deodorization tank 10. That is, the pump 22 sucks the catalyst water stored in the deodorization tank 10 through the outlet line 24 and then re-injects the catalyst water into the deodorization tank 10 through the inlet line 26. Forced circulation.

2 and 3, the deodorization tank 10 includes an outlet port 24a connected to the outlet line 24 of the pumping means 20 and an inlet line 26 of the pumping means 20 on the bottom surface. An inlet port 26a through which the catalyst water is introduced is provided, and the inlet port 26a is radially disposed at a plurality of locations around the outlet port 24a.

Accordingly, since the catalyst water re-introduced into the deodorization tank 10 through the pumping means 20 is distributed and supplied at a position spaced apart from the bottom of the deodorization tank 10 through a plurality of inlet ports 26a, the ejector unit 30 to be described later Through this, the aeration area is expanded and the aeration efficiency is improved.

Meanwhile, as the outlet port 24a is disposed in the center of the plurality of inlet ports 26a, the odor gas aerated inside the deodorization tank 10 through the plurality of inlet ports 26a is lowered from the diffusion plate 34 to be described later. When transporting downward by riding the inclined portion 35, catalyst water is transported upward from the edge of the deodorizing tank 10 by the catalyst water suction force through the outlet port 24a at the center of the plurality of inlet ports 26a as shown in FIG. In the central position corresponding to the outlet port 24a, a circulating flow of catalytic water is formed in which the catalytic water is transferred downward, thereby improving the removal efficiency of odor substances contained in the odor gas.

The ejector unit 30 according to the present invention is installed in the inlet line 26 of the pumping means 20 and is provided to mix and aerate the odor gas and catalyst water sucked from the sewage treatment unit 100. The ejector unit 30 has a multi-gas pipe 36 connected to an inner constricted portion so that odor gas is sucked from the sewage treatment unit 100.

Accordingly, while the catalyst water conveyed at high speed through the inlet port 26a passes through the ejector unit 30, the odor gas is sucked through the multi-gas pipe 36, and is mixed with the catalyst water and aerated into an atomized state.

On the other hand, the multi-gas pipe 36 is provided with a reverse flow prevention section (36a) that is bent so as to pass over the surface of the catalyst water inside the aeration tank (10). As shown in FIG. 1, one end of the multi-gas pipe 36 is extended to the bottom of the deodorization tank and connected to the sewage treatment unit 100, and the other end is connected to the ejector unit 30, and the middle region of the multi-gas pipe 36 is As it is installed above the water surface, that is, via the upper empty space in the aeration tank 10, when the pumping means 20 is stopped, the phenomenon of backflow of catalyst water through the multi-gas pipe is prevented.

In addition, the ejector unit 30 has the injection port 32 installed upward in a state immersed in the catalyst water, and a diffusion plate 34 is installed in front of the injection port 32 to disperse the catalyst water mixed and aerated in all directions. It is provided as possible.

In addition, the diffusion plate 34 has a downwardly inclined portion 35 formed at an edge thereof, and the catalyst water mixed and aerated through the injection port 32 by the downwardly inclined portion 35 is provided to float after diffusion downward.

In this way, the odor gas is mixed with the catalyst water while passing through the ejector unit 30 to be aerated in a state of primary atomization, and the aerated odor gas collides with the diffusion plate 34 together with the catalyst water to make the second atomization smaller. As a result, the reaction time with the catalyst water is extended while being transported downward by riding the downward slope portion 35, thereby improving the efficiency of removing malodorous substances.

The photocatalyst means 40 according to the present invention is installed inside the deodorization tank 10 and is provided to decompose malodorous substances by oxidation reaction with the UV lamp. The photocatalytic means 40 is configured to cause oxidation and reduction by a photocatalytic device including a UV lamp to decompose various odors and harmful substances.

Accordingly, the odor gas is sucked in by the injection pressure of the catalyst water forcedly circulated by the pumping means 20 and the ejector unit 30, and the odor is mixed and aerated in the deodorization tank 10, and the odor collected in the catalyst water through the photocatalytic oxidation reaction. There is an advantage in that it is possible to continuously operate for a long time without exchanging catalyst water while undergoing a complex chemical recycling process in which the material is continuously decomposed.

In FIG. 4, the sewage treatment unit 100 includes a sewage tank 110 in which sewage flowing in through the sewage pipe 112 is stored, and a main gas pipe 120 that discharges odor gas separated to the upper portion of the wastewater tank 110. , The sewage tank 110 includes a sewage pump 130 for discharging the sewage from which the odor is separated by detecting the water level inside the sewage tank 110. The sewage tank 110 is buried in the ground in the form of a manhole, the upper part is opened and closed by a cover, and the sewage pipe 112 is installed at a position spaced from the bottom to the upper side.

As such, the internal space of the wastewater tank 110 is a space in which sewage is stored in the lower area based on the wastewater pipe 112, and the upper area is a space in which odor gas separated from the wastewater is collected, and the wastewater wastewater tank 110 During the stay and stored in the odor gas is separated into the upper space and is moved to the deodorization tank 10 through the main gas pipe 120 and the multi-gas pipe 36.

And, the operation of the sewage pump 130 is controlled based on the sewage level detected in the section between the sewage tank 110 and the sewage pipe 112. As an example, the sewage water level is close to the sewage pipe 112 as shown in FIG. When the sewage pump 130 is operated in a high-speed mode, and the sewage pump 130 rotates at a low speed when the water level is detected between the bottom of the sewage tank 110 and the sewage pipe 112, the sewage water level reaches the bottom of the sewage tank 110. When it goes down, the operation of the sewage pump 130 is stopped.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made within the scope of the technical scope of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and equivalent technical means from these techniques.

10: deodorization tank 11: water supply pipe
12: exhaust pipe 14: support member
14a: lower compartment 16: cover member
16a: upper compartment 20: pumping means
22: pump 24: outlet line
24a: outlet port 26: inlet line
26a: inlet port 30: ejector part
32: nozzle 34: diffusion plate
35: downward slope 36: multi-gas pipe
36a: backflow prevention section 40: photocatalytic means
100: sewage treatment unit 112: sewage pipe
120: main gas pipe 130: sewage pump

Claims (5)

A deodorizing tank 10 in which catalyst water is stored and a process gas exhaust pipe 12 is provided thereon;
A pumping means (20) provided with a pump (22) and outflow and inflow lines (24) (26) to forcibly circulate the catalyst water stored in the deodorization tank (10);
An ejector unit 30 installed in the inlet line 26 of the pumping means 20 and provided to mix and aerate the catalyst water and the malodorous gas sucked from the sewage treatment unit 100; And
An ejector-coupled deodorizing device using a wet photocatalyst, characterized in that it comprises a; photocatalyst means (40) installed inside the deodorization tank (10) and provided to decompose malodorous substances by oxidation reaction with the UV lamp.
The method of claim 1,
The deodorization tank 10 is connected to the outlet port 24a connected to the outlet line 24 of the pumping means 20 and the inlet line 26 of the pumping means 20 on the bottom surface to allow the catalyst water to flow in. An ejector-coupled deodorizing device using a wet photocatalyst, characterized in that a port (26a) is provided, and the inlet port (26a) is radially disposed at a plurality of locations around the outlet port (24a).
The method of claim 1,
The ejector unit 30 is provided so that the injection port 32 is installed upward in a state immersed in the catalyst water, and the diffusion plate 34 is spaced apart from the injection port 32 so that the catalyst water mixed and aerated with odor gas is dispersed in all directions. The diffusion plate 34 has a downwardly inclined portion 35 formed at the edge thereof, and the catalyst water mixed and aerated through the injection port 32 by the downwardly inclined portion 35 diffuses downward and floats, so that the Ejector-coupled deodorization apparatus using a wet photocatalyst, characterized in that provided to extend the reaction time.
The method of claim 1 or 3,
The ejector unit 30 and the sewage treatment unit 100 are connected by a multi-gas pipe 36, and the multi-gas pipe 36 is provided with a backflow prevention section 36a that is bent so as to pass over the surface of the catalyst water inside the aeration tank 10. Ejector-coupled deodorization device using a wet photocatalyst, characterized in that.
The method of claim 1,
The deodorization tank 10 is supported apart from the ground by a support member 14 installed at the bottom, and a lower compartment 14a is formed so that the pumping means 20 is accommodated in the support member 14, and the deodorization An ejector using a wet photocatalyst, characterized in that a cover member 16 is installed on the top of the tank 10, and an upper compartment 16a is formed so that the processing gas exhaust pipe 12 and the control panel are installed inside the cover member 16 Combined deodorizing device.

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