KR20130035435A

KR20130035435A - Apparatus for removing a bad smell

Info

Publication number: KR20130035435A
Application number: KR1020110099735A
Authority: KR
Inventors: 양승현; 김진욱; 유남종
Original assignee: (주)일신종합환경; 유남종
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2013-04-09

Abstract

PURPOSE: An odor removal apparatus is provided to remove an odoriferous material not reacting with an odor material or excessively supplied ozone remaining in a reactor. CONSTITUTION: An odor removal apparatus includes a reactor(110) in which a gas inlet for incoming of an odoriferous gas in a front end and a gas outlet for outgoing of an purified gas in a rear end and an ozone generation unit(120) supplying ozone to the reactor. The reactor includes a plurality of ozone injection holes(111) formed along the longitudinal direction so that the ozone supplied from the ozone generation unit is able to be divisionally injected. The reactor is a plug flow type reactor. A baffle is installed inside the plug flow type reactor. [Reference numerals] (120) Ozone generation unit; (AA) Odor gas; (BB) Purified air;

Description

Odor elimination device {APPARATUS FOR REMOVING A BAD SMELL}

The present invention relates to an odor removing apparatus, and more particularly, to an odor removing apparatus capable of maximizing reaction efficiency by activating a collision and contact between ozone and odorous substances.

Recently, the desire to improve the quality of life is increasing due to the improvement of the living environment according to various city planning and environmental projects, and accordingly, discussions on the treatment of pollutants due to various industrial activities are being actively conducted. Among these pollutants, odors, VOCs (Volatile Organic Compounds), bacteria, etc. are very closely related to real life because they are unpleasant because they are transmitted through the air and stimulate human smell. It must be removed.

Currently, hydrogen sulfide, methyl sulfide, methyl disulfide, ammonia, methyl mercaptan, trimethylamine, acetaldehyde, and styrene are designated as odorous substances. These odorous substances are mainly used in incineration facilities, landfills, sewage treatment plants, and livestock facilities. Emissions to the atmosphere.

Accordingly, research and development of techniques for removing odors have been continuously made in the past, and as a result, various odor removal methods such as a combustion method, a cleaning method, an adsorption method, a microbial treatment method, and an oxidation method have been established and operated.

Specifically, the combustion method is capable of removing almost all of the odorous substances by heating the malodorous gas to a high temperature to decompose into carbon dioxide and water, etc., but there is a problem in that fuel costs required for combustion are continuously generated. The cleaning method is a method of treating odorous substances by washing with water, chemicals, etc., but the operating cost is low, but the scope of application is narrow and the treatment of contaminated wastewater generated after cleaning is accompanied. Adsorption method has the advantage of wide application range and easy installation, by using the adsorptivity of porous materials such as activated carbon, but has a hassle that needs to be replaced periodically when the lifetime of the activated carbon. The microbial treatment method has the advantage that secondary pollutants are not generated by decomposing odorous substances by using microorganisms, but it is inconvenient to continuously maintain the growth conditions required by microorganisms. Oxidation method has recently been in the spotlight for easy maintenance and large-capacity treatment by removing the odor using the strong oxidizing power of ozone. Hereinafter, the odor removal apparatus using the ozone oxidation method will be described in more detail with reference to the accompanying drawings.

1 is a conceptual diagram of a odor removing device using a conventional ozone oxidation method.

As shown in FIG. 1, the conventional malodor removing apparatus 10 includes a reactor 11 into which the malodorous gas 14 is introduced by a fan (not shown), and ozone for supplying ozone to the reactor 11. It is composed of a generator 12 is the odor removal is carried out in such a way that the odorous substances introduced into the reactor 11 is contacted with, oxidized and then exhausted to the outside (13).

However, in the case of the conventional malodor removing device 10 as described above, the ozone generating device 12 is mostly installed only at the front end of the reactor 11, so that the reaction efficiency of the malodorous substance and ozone is very low. That is, in the odor removing device 10, the ozone generating device 12 is installed at the front end so that the odor gas flowing into the reactor 11 is directly in contact with the ozone. Due to the structure of the reactor 11 is configured in the form of the ozone concentration is bound to decrease toward the rear end. Therefore, the reaction of the odor gas and ozone hardly occurs at the rear end of the reactor 11, so that the overall processing efficiency is lowered.

In addition, as described above, when the oxidation reaction by ozone is performed, ozone which is not reacted with the malodorous gas or is excessively supplied to the rear end of the reactor 11 is left. Since there is no means for treating ozone, there is a problem in that ozone is emitted into the atmosphere.

In addition, in addition to the ozone, the odor removing device is usually provided with a general catalyst, a photocatalyst, etc., in the case of the conventional odor removing device 10 to increase the reaction efficiency by forming a large volume of the catalyst ozone, odorous substances It is common to maximize the contact area. Therefore, the entire process for removing odorous substances is inevitably very large, and as a result, it is difficult to apply to a small space such as a room.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an odor removing apparatus capable of maintaining a constant concentration of ozone over the entire region in the reactor.

In addition, another object of the present invention is to provide an odor removing apparatus that can improve the reaction efficiency of odorous substances and ozone.

It is still another object of the present invention to provide an odor removing apparatus capable of removing ozone remaining in the reactor by not reacting or being excessively supplied with odorous substances.

Still another object of the present invention is to provide a odor removing apparatus which can be compacted by minimizing volume.

As a means for solving the above technical problem,

The present invention includes a reactor in which a gas inlet for introducing a malodorous gas is formed at a front end, and a gas outlet for discharging a purge gas is formed at a rear end thereof, and an ozone generator for supplying ozone to the reactor. It provides an odor removing device characterized in that it comprises an ozone inlet formed in the longitudinal direction so that the ozone supplied from the ozone generator can be dividedly injected.

In this case, the reactor may be a plug flow reactor.

In this case, a baffle may be installed inside the plug flow reactor.

In this case, at least one catalyst structure in the form of a honeycomb, a wave form or a micro channel may be provided inside the reactor.

In this case, a catalyst for oxidizing unreacted ozone in the ozone generated from the ozone generator may be installed at the rear end of the reactor.

According to the present invention, the ozone inlet is formed at regular intervals along the longitudinal direction of the reactor, and the ozone is divided and injected to improve the reaction efficiency with the malodorous substance even when the length of the reactor is long.

In addition, by installing a baffle and a specific type of catalyst structure inside the reactor to induce turbulent flow, it is possible to activate the collision and contact of ozone and odorous substances.

In addition, by installing a separate catalyst for oxidizing and removing residual ozone at the rear end of the reactor, it is possible to prevent the external release of unreacted ozone, thereby preventing damage by ozone.

In addition, as described above, by maximizing the reaction efficiency of the malodorous substance and ozone and preventing the external discharge of unreacted ozone, it is possible to obtain an effect applicable to a small indoor space.

1 is a conceptual diagram of a odor removing device using a conventional ozone oxidation method,
2 is a view showing a malodor removing device according to a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

2 is a view showing a malodor removing apparatus according to a preferred embodiment of the present invention.

As shown in FIG. 2, the malodor removing apparatus 100 according to the preferred embodiment of the present invention includes a reactor 110 and an ozone generator 120.

Specifically, the reactor 110 is a place where the reaction between the malodorous substance and ozone is formed in a substantially long tube form. In this case, a gas inlet 110a is formed at the front end of the reactor 110, and a gas outlet 110b is formed at the rear end so that the malodorous gas introduced through the gas inlet 110a passes through the reactor 110. After being oxidized, the gas outlet 110b is discharged to the outside. Of course, a fan (not shown) is installed outside the reactor 110 for the flow of the fluid.

Subsequently, the ozone generator 120 is installed outside the reactor 110 to generate ozone and supply the ozone to the reactor 110. In the present invention, the ozone generator 120 may use a UV lamp or a variety of ozone generators of known type, but is not particularly limited.

The present invention has the reactor 110 and the ozone generator 120 described above as a basic configuration, and further provided with another configuration to maximize the reaction efficiency of the odor gas and ozone bar in more detail below Explain.

First, a plurality of ozone inlets 111 may be formed in the reactor 110. Specifically, the ozone inlet 111 is provided on one side of the reactor 110, a plurality of predetermined size and intervals along the longitudinal direction. In this case, the size, shape, interval, etc. of the ozone inlet 111 may be appropriately adjusted in consideration of the capacity of the reactor 110.

As described above, when the ozone inlet 111 is formed in the reactor 110, a change in the concentration of ozone according to the length of the reactor 110 may be minimized. That is, since the reactor 110 has a long pipe shape as described above, when only one ozone inlet 111 is installed as in the prior art, the ozone concentration is high in the region where the ozone inlet 111 is present, In the region, the ozone concentration is low, and there is a problem in that the odor removal rate is different for each region. Therefore, the treatment efficiency of the reactor 110 as a whole is inevitably deteriorated, and in the present invention, in order to solve this problem, the ozone inlet 111 is installed at the front end, the middle, and the rear end of the reactor 110, so that ozone is the entire region. To split evenly into

In this case, although not shown in the drawing, it is also possible to selectively inject ozone by installing a valve or the like in the ozone inlet 111. That is, the region where the concentration of ozone is high shuts off the valve, and the region where the concentration of ozone is low or absent is to open the valve to regulate the concentration of ozone constantly. Selective opening and closing operation of the valve is installed in the reactor 110, a sensor (not shown) for detecting the concentration of ozone, and a control unit for receiving the signal of the ozone concentration from the sensor to control the opening and closing of the valve This can be done automatically.

Meanwhile, in the present invention, it is preferable to use a plug flow reactor as the reactor 110. In this case, a baffle (not shown) is installed inside the reactor 110 to induce turbulence. . The baffle may be installed in a predetermined form, for example, a structure alternately formed up and down inside the reactor 110, but the structure of the baffle is not limited thereto, and other types as long as it can induce turbulence It is also possible to form in the form.

When configured as described above, since turbulence is formed inside the reactor 110, the collision and contact between the malodorous substance and ozone are actively performed, and thus the reaction efficiency may be improved. In the present invention, it is also possible to install a specific type of catalyst structure 130 in the reactor 110 in order to activate the reaction of the malodorous substance and ozone more. In this case, the catalyst structure 130 may be configured in the form of honeycomb, corrugation, or microchannel, and when the catalyst structure of this type is installed in the reactor 110, malodorous gas may form irregular pores of the catalyst structure 130. In addition to the removal of odorous substances in the process of passing through the turbulence is induced by the contact of odor gas and ozone more active can increase the treatment efficiency.

Finally, a catalyst 140 may be additionally installed at the rear end of the reactor 110. The catalyst 140 is generated from the ozone generator 120 to enter the reactor 110 to remove the residual ozone that did not react with the malodorous substance. In the present invention, the type of the catalyst 140 is not particularly limited, and it should be understood that various catalysts of known forms can be used. As such, when the residual ozone is removed from the rear end of the reactor 110, it is possible to prevent the external discharge of ozone harmful to the human body, thereby ensuring the stability for ozone has an advantage that can be easily applied to the room.

The configuration of the malodor removing apparatus according to the preferred embodiment of the present invention has been described in detail with reference to the accompanying drawings. Hereinafter, the operation of the malodor removing apparatus according to a preferred embodiment of the present invention.

First, when odor gas is introduced into the reactor 110 through the gas inlet 110a by a blower, a fan (not shown), the ozone generator 120 operates to generate ozone, and the ozone generated in this way. Is introduced into the reactor 110 through the ozone inlet 111. As described above, in the present invention, ozone is divided and injected to maintain the same concentration in the entire region of the reactor 110, thereby solving the problem of reducing the treatment efficiency at the rear end.

Thereafter, the odorous substance and ozone react in the reactor 110 and move to the rear stage. In this process, turbulence is induced by the baffle, which results in a more active reaction. In addition, when the mixture of the malodorous substance and ozone reaches the catalyst structure 130, the malodorous substance is additionally removed through an oxidation reaction, and after passing through the catalyst structure 130, turbulent flow is induced to make active mixing again. do.

After passing through a series of processes as described above, the residual ozone is finally treated by the catalyst 140 at the rear end of the reactor 110 and then discharged to the outside through the gas outlet 110b. At this time, the discharged air does not cause damage due to the oxidizing agent because the odorous substances and ozone are completely removed, and thus it is expected to be safely applicable to a small limited indoor space.

Preferred embodiments of the present invention have been described in detail above with reference to the drawings. The description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the scope of the present invention is represented by the following claims rather than the detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concepts of the claims are included in the scope of the present invention. Should be interpreted as

100: odor removing device 110: reactor
110a: gas inlet 110b: gas outlet
111: ozone inlet 120: ozone generator
130: catalyst structure 140: catalyst

Claims

A reactor in which a gas inlet for introducing a malodorous gas is formed at the front end, and a gas outlet for discharging the purge gas is formed at the rear end; And
An ozone generator for supplying ozone to the reactor;
Including but not limited to:
The reactor has a odor removing device, characterized in that it comprises an ozone inlet formed in the longitudinal direction so that the ozone supplied from the ozone generator is dividedly injected.

The method of claim 1,
The reactor is odor removal device, characterized in that the plug flow reactor.

The method of claim 2,
Odor removal apparatus, characterized in that the baffle is installed in the plug flow reactor.

The method of claim 1,
At least one honeycomb, waveform or micro-channel catalyst structure in the reactor is provided within the odor removing apparatus, characterized in that.

The method of claim 1,
At the rear end of the reactor is a odor removing device, characterized in that the catalyst for oxidizing the unreacted ozone out of the ozone generated from the ozone generator.