KR101978395B1 - Apparatus for removing harmful material in material to be treated by using plasma filter - Google Patents

Abstract

The present invention relates to an apparatus for removing harmful substances from a material to be treated which occurs in an industrial site and an environmental treatment facility. The apparatus for removing harmful substances from a material to be treated comprises: a filter cartridge; a housing; a material to be treated inlet; an injection nozzle installation unit; a first filter unit; a second filter unit; a third filter unit; and a blower.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for removing harmful substances from a substance to be treated by using a plasma filter,

The present invention relates to an apparatus for removing harmful substances from a substance to be treated which occurs in an industrial site and an environmental treatment facility.

Harmful substances that adversely affect human health or the environment are mostly used in many industries such as waste water treatment facilities, manure treatment facilities, food waste treatment facilities, food processing plants, composting plants, petrochemical plants, tire plants, paint manufacturing plants, Site and environmental treatment facilities.

Common harmful substances include harmful substances such as ammonia (NH ₃ ), methyl mercaptan (MM), hydrogen sulfide (H ₂ S), methyl sulfide (DMS), methyl disulfide (DMDS), trimethyl amine (TMA), acetaldehyde, And volatile organic compounds (VOCs) which destroy the ozone layer in the atmosphere such as benzene, toluene, xylene, dichlorobenzene, and dichloromethane, or which are harmful to the human body. These harmful substances are strongly regulated at the national level, and the substances to be regulated are also expanding.

Techniques for controlling odorous substances can be classified into physicochemical treatment and biological treatment. Physicochemical treatment is a malodor removal technique by a physical mechanism, such as cleaning, adsorption, and combustion. Biological treatment is a malodor removal technology using microorganisms, and can be classified into a biofilter, a biochemical cleaner, a spraying filter, an activated sludge process, and an advanced oxidation process according to the method.

 Among them, the advanced oxidation method is a method of directly decomposing odorous substances by injecting a substance having a strong oxidizing power such as plasma, ultraviolet rays and ozone into a gas containing odorous substances. Recently, as the efficiency of the system has been improved through various studies, It is emerging as an alternative technology.

In addition, the low-temperature plasma method that utilizes the strong oxidizing power of the ozone during the high-level oxidation process is a technique of treating air pollutants by generating radicals and ozone, which are oxidizing substances, in a state where electrons accelerate with strong energy in the electric field, to be. Ozone is a natural substance that is mainly produced as a by-product of oxidation in a low-temperature plasma process and has a strong oxidizing power next to fluorine (F ₂ ), which is widely used for sterilization of waste water and water, decolorization and organic material oxidation.

When organic matter is oxidized by ozone, it is decomposed into aldehyde (-CHO), water (H ₂ O), and carbon dioxide (CO ₂ ) and changes into a toxic and odorless substance. Odor control through ozone is accomplished by changing the functional groups of odorous substances or destroying the molecular structure by masking or oxidation.

The odor control by ozone has the advantage of having little maintenance cost other than the power ratio, easy to manage, oxidized and decomposed in the air in a short time, and the processing speed is fast. Adding a catalyst to the chemical reaction by the active species generated by the atmospheric pressure discharge plasma can enhance the activity even in the low temperature region where the activity is lowered, thereby promoting the chemical reaction.

The low-temperature plasma method is convenient to control the input energy density, can be easily miniaturized, can be operated under relatively easy conditions of room temperature and atmospheric pressure, and is easily combined with other technologies.

Conventional bio-deodorization system can be applied to low and medium concentration of harmful gas, and it is very difficult to cope with changes in inflow concentration and property, and microorganisms are killed due to sudden change in inflow conditions. It is also said.

Another deodorization method, detergent deodorization system, is superior in deodorization efficiency at low and medium concentration, but it has a disadvantage of considering safety problem and waste water generation problem by using chemicals such as sulfuric acid, caustic soda, have.

Accordingly, it is necessary to maximize the economical efficiency of the deodorization system and reduce the operating cost, to improve the performance by complementing the existing deodorization system, and to apply the system to mass production.

Korean Patent No. 10-1811752 Korean Patent No. 10-1810926

Accordingly, by decomposing harmful substances into ozone generated in the plasma filter and treating residual harmful substances in the deodorizer at the subsequent stage, it is possible to remove harmful substances from the treatment material that can maximize the economical efficiency due to the efficiency of the deodorizer and the operation cost reduction. The present invention has been made in view of the above problems.

An apparatus for removing harmful substances in a substance to be treated according to the present invention for realizing the above object comprises a filter cartridge into which a substance to be treated flows; A housing through which the material to be processed passes through the filter cartridge; A target material inlet located at a lower portion of the housing; A plurality of first injection nozzles disposed at an upper portion of the inflow portion to be processed in the housing and having an upper portion to which water is injected; A hydrophilic first filter unit spaced apart from the spray nozzle mounting unit and adapted to remove soluble harmful components while passing the material to be treated; A second filter unit spaced apart from the first filter unit and adapted to remove insoluble harmful components while passing the material to be processed; A third filter unit spaced apart from the second filter unit and passing the material to be processed to remove moisture and residual harmful substances; A blower connected to an end of the housing to provide a suction force; Wherein the upper case and the lower case are coupled to each other to have a receiving space between the upper case and the lower case, and the filter cartridge includes a first nano-coated biofilter, a first silicon substrate, a plasma Filter, a second silicon support, and a second nano-coated bio-filter are stacked in this order.

The plasma generating electrode module may include a cylindrical first electrode, a first electrode, and a second electrode. The plasma generating electrode module may include a support having a plurality of openings formed thereon, and a plasma generating electrode module having flexibility and being entirely bent and fixed to the support, A cylindrical first dielectric formed to surround the electrode; A cylindrical second electrode formed to surround the first dielectric; A cylindrical second dielectric formed to surround the second electrode; .

A filter chamber including an inlet through which the material to be treated flows, a chamber body connected to the inlet and having a receiving space, and an outlet connected to the chamber body; Wherein a plurality of the filter cartridges are detachably disposed in the chamber body at predetermined intervals so that a material to be introduced through the inlet passes through the plurality of filter cartridges sequentially through the outlet port .

The filter chamber further includes an ozone removing filter disposed between the filter cartridge and the outlet to remove ozone from the material to be treated that has passed through the filter cartridge.

According to the present invention, the harmful substances are decomposed by the ozone generated in the front-end plasma filter and the residual harmful substances are treated in the deodorizer at the downstream stage, thereby improving the efficiency of the deodorizer, Can be provided.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing a configuration of an apparatus for removing harmful substances according to an embodiment of the present invention; FIG.
Fig. 2 is a view showing the flow of the material to be treated and the washing water in Fig. 1;
3 is a perspective view of a first biofilter according to an embodiment of the present invention.
4 is a perspective view of a first bio carrier according to an embodiment of the present invention.
5 is a perspective view of a second biofilter according to an embodiment of the present invention.
6 is a perspective view of a third biofilter according to an embodiment of the present invention.
7 is a perspective view of a filter chamber according to an embodiment of the present invention.
8 is a perspective view of a filter cartridge according to an embodiment of the present invention.
Figure 9 is an exploded view showing the components of the filter cartridge of Figure 8;
FIG. 10A is a view showing the plasma filter of FIG. 9, and FIG. 10B is a view showing a state in which the plasma filter of FIG. 9 is disassembled.
FIG. 11 is a view for explaining the configuration of the plasma generating electrode module of FIG. 10A.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing a configuration of an apparatus for removing harmful substances according to an embodiment of the present invention; FIG. Fig. 2 is a view showing the flow of the material to be treated and the washing water in Fig. 1; 3 is a perspective view of a first biofilter according to an embodiment of the present invention. 4 is a perspective view of a first bio carrier according to an embodiment of the present invention. 5 is a perspective view of a second biofilter according to an embodiment of the present invention. 6 is a perspective view of a third biofilter according to an embodiment of the present invention. 7 is a perspective view of a filter chamber according to an embodiment of the present invention. 8 is a perspective view of a filter cartridge according to an embodiment of the present invention. Figure 9 is an exploded view showing the components of the filter cartridge of Figure 8; FIG. 10A is a view showing the plasma filter of FIG. 9, and FIG. 10B is a view showing a state in which the plasma filter of FIG. 9 is disassembled. FIG. 11 is a view for explaining the configuration of the plasma generating electrode module of FIG. 10A.

(Hereinafter referred to as apparatus) for removing harmful substances in the material to be treated of the present invention includes a filter chamber 400 including a filter cartridge 200, a housing 110, a material to be processed inlet 111, The first filter unit 120, the second filter unit 130, the third filter unit 140, the washing water storage tank 150, the acid / alkaline solution storage tank 160, and the like.

1, 2, and 7, the filter chamber 400 includes an inlet 420 through which the material to be treated flows, a chamber body 410 connected to the inlet 420 and having a receiving space, And an outlet 430 connected to the chamber body 410. The filter chamber 400 is made of a material having superior corrosion resistance and durability (SUS) and is capable of preventing the outflow of gas. The material to be treated may be introduced into the filter chamber 400 by the suction force provided in the blower 170.

A plurality of shelves 411 and a door 412 are provided in the chamber main body 410 at predetermined intervals and a filter cartridge 200 is detachably disposed in the shelf 411. The material to be treated flowing through the inlet port 420 passes through the plurality of filter cartridges 200 in order and is discharged through the outlet port 430. The chamber body 410 further includes an ozone removal filter 300 disposed between the filter cartridge 200 and the outlet 430 to remove ozone from the material to be treated which has passed through the filter cartridge 200.

The filter cartridge 200 improves the efficiency of the apparatus by decomposing harmful substances into ozone generated by the plasma generated in the plasma filter 210 and treating the residual harmful substances in the filter unit disposed in the housing 110 at the rear stage It is possible to maximize the economical efficiency by reducing the operation cost. Further, the filter cartridge 200 can improve the performance by complementing the existing deodorizing device. The configuration of the filter cartridge 200 will be described later.

Referring to FIGS. 1 to 6, the housing 110 is a place where harmful substances are removed while the material to be treated passed through the filter chamber 400 flows through various filter units, The injection nozzle mounting portion 112, the first to third filter portions 120, 130 and 140, and the like.

The material-to-be-treated 111 is located at a lower portion of the housing 110 and through which the material to be treated flows in through the inlet pipe 101. The material to be treated flows into the target material inlet 111 in a gaseous state.

The injection nozzle mounting portion 112 is located in the upper portion of the target material inlet portion 111 in the housing 110 and is connected to the target material inlet portion 111 by a plurality of inlet openings 111a, . A plurality of first injection nozzles 155 are spaced apart from each other at an upper portion of the inflow opening 111a. The material to be introduced into the target material inflow portion 111 enters the injection nozzle installing portion 112 through the inflow opening 111a.

The upper portion of the inflow opening 111a of the injection nozzle mounting portion 112 is covered with the downwardly inclined plate portion 112a and the washing water (or water) injected from the first injection nozzle 155 is directly introduced into the inflow opening 111a, . For example, the plate-like portion 112a may be formed obliquely downwardly on both sides in the shape of a roof, and the inlet opening 111a may be provided below the inclined portion of the plate-like portion 112a. The plate portion 112a is formed to be inclined downward so that the washing water injected from the first injection nozzle 155 can be collected on the bottom of the injection nozzle installing portion 112 along the plate portion 112a.

The material to be introduced into the spray nozzle mounting portion 112 is brought into contact with the water sprayed from the first spray nozzle 155 and the soluble harmful components are moved to the bottom of the spray nozzle mounting portion 112 together with the water, The washing water may be transferred to the washing water storage tank 150 through the washing tub 151.

The material to be treated in the present invention is not introduced into the washing water fresh water portion 3 in which the washing water 40 is stored but flows into the untreated material inlet portion 111 without washing water as in the prior art, And then flows into the nozzle mounting portion 112.

Since the material to be treated flows due to the suction force (sound pressure) provided in the blower 170, compared with the conventional technique in which the material to be treated flows through the wash water fresh water portion 3 containing the wash water 40, Even if the wind pressure of the blower 170 is reduced, the material to be treated can be sufficiently flowed and dispersed more uniformly. Thus, the energy cost used in the blower 170 can be reduced.

The material to be treated which has been moved to the spray nozzle mounting portion 112 can be contacted with the water sprayed by the first spray nozzle 155 in a larger area and thus has an advantage of improving the efficiency of removing the harmful substances from the material to be treated .

Next, the material to be treated passes through the first filter part 120 installed apart from the injection nozzle mounting part 112.

The first filter unit 120 is a filter for removing soluble harmful components of the material to be treated that have not been removed from the injection nozzle mounting unit 112. The first filter unit 120 may include a first bio-filter 121 and a first bio-carrier 122, which are hydrophilic.

Soluble harmful substances that have not been removed from the spray nozzle mounting portion 112 are adsorbed by the first bio filter 121 and the first bio carrier 122. Soluble harmful substances adsorbed to the first bio-filter 121 or the first bio-carrier 122 are decomposed by the microorganisms existing in the first bio-filter 121 or the first bio-carrier 122.

The necessary moisture in the first filter unit 120 is supplied from the washing water storage tank 150 through the transfer pipe 153 and is injected through the second injection nozzle 156. A plurality of second injection nozzles 156 are installed on the first filter unit 120 in the housing 110.

The sprayed wash water flows back into the wash water storage tank 150 through the transfer pipe 151. The washing water is maintained at a constant temperature by a constant temperature heater (not shown) attached to the inside of the washing water storage tank 150, and the above circulation is repeated. At this time, the washing water is purified by repeated circulation and the organic and inorganic compounds at a constant concentration are maintained, so that the number of microorganisms can be controlled, and excessive proliferation of microorganisms can be prevented even for a long period of operation.

The material to be treated passed through the first bio-filter 121 and the first bio-carrier 122 is transferred to the second filter unit 130.

Insoluble harmful components existing in the harmful substance are adsorbed while passing through the second filter unit 130. And the second filter unit 20 includes a hydrophobic second bio-filter.

The washing water required in the second filter unit 130 is supplied from the washing water storage tank 150 through the transfer pipe 154 as in the first filter unit 120 and is injected through the third injection nozzle 157. The sprayed wash water flows back into the wash water storage tank 150 through the transfer pipe 151.

 The second filter unit 130 may include a hydrophobic second bio-filter 131 and a second bio-carrier 132. The second bio-filter 131 may include a hydrophobic second bio-filter 131 and a second bio-carrier 132.

The second bio-filter 131 is composed of a filter matrix having low air resistance and porosity and an adsorbent and a nano-metal-containing material coated on the filter matrix and having excellent adsorption and absorption properties.

The material to be processed passed through the second filter unit 130 is transferred to the third filter unit 140. The object to be treated has moisture and residual harmful substances removed from the third filter unit 140 and water and remaining harmful substances are removed through the discharge pipe 71 and discharged to the atmosphere by the blower 170 do.

The third filter unit 140 is a filter that removes excess moisture contained in the substance to be treated and finally removes a small amount of harmful substances not treated in the first and second filter units 120 and 130, And a third bio-filter 141 for antibacterial and sterilizing the substance. The third bio-filter 141 may be composed of a filter matrix and a nano-metal-containing material coated on the filter matrix.

The first to third filter units 120, 130, and 140 may be spaced apart from each other within the housing 110 as shown in FIG. When the filter units 120, 130, and 140 are integrally installed in the single housing 110, the size of the device is reduced, thereby facilitating space utilization.

The wash water storage tank 150 supplies wash water to the first to third injection nozzles 155, 156 and 157. The washing water storage tank 150 is connected to each of the first to third injection nozzles 155, 156 and 157 through the transfer pipes 152, 153 and 154. The water is supplied to the first to third injection nozzles 155, 156 and 157 in the housing 110 through the transfer pipes 152, 153 and 154 to be supplied to the second filter unit 130, the first filter unit 120, And then returns to the washing water storage tank 150 through the transfer pipe 151 via the spray nozzle mounting portion 112. [

The circulation amount of the wash water is preferably controlled by a level switch 159 attached to the wash water storage tank 150 and a wash water inflow valve 158 connected thereto. The level switch 159 attached to the wash water storage tank 150 senses the amount of wash water remaining in the wash water storage tank 150 to determine the circulation amount of the wash water and controls the wash water inflow valve 158 accordingly to discharge a proper amount of wash water to the wash water storage tank 150 ).

When the apparatus is operated for a long time and the washing water circulates for a long time, the pH may be changed to acidic or alkaline by harmful substances and decomposition products. In this case, the pH is sensed by the pH meter 163 attached to the inside of the washing water storage tank 150, and if necessary, the acid / alkaline solution inlet valve 162 connected to the acid / alkali solution storage tank 160 is adjusted, The pH of the washing water in the washing water storage tank 150 can be adjusted to 6 to 8 by introducing the acid / alkali solution into the washing water storage tank 150 through the circulating pump.

After passing through the filter chamber 400 as shown in FIG. 2, the material to be treated containing harmful substances is mixed with the outside air flowing from the outside air inflow part 102 and flows into the inside of the housing 110. A blower 170 is disposed in the exhaust pipe 171 through which the material to be treated is discharged so that the material to be introduced into the housing 110 flows toward the discharge pipe 171 by the blower 170, At this time, the harmful substances are sequentially removed through the material to be treated 111, the spray nozzle installation part 112 and the first to third filter parts 120, 130 and 140.

Hereinafter, the first to third filter units 120, 130, and 140 will be described with reference to FIGS. 3 to 6. FIG.

The first bio-filter 121 is a filter that adsorbs harmful harmful components and decomposes them into microorganisms. The first bio-filter 121 has a filter matrix having a low air resistance and a porous structure, an adsorbent having excellent adsorption properties attached to the matrix, And may further comprise a hydrophilic adsorbent.

The filter matrix of the first biofilm 121 may be a porous matrix layer containing one or more porous materials such as polypropylene, polyethylene, polyvinyl chloride (PVC) .

The adsorbent used in the first bio-filter 121 adsorbs harmful substances and fixes them on a filter matrix so that microorganisms can decompose harmful substances. As the adsorbent, wood activated carbon including bamboo activated carbon, pine activated carbon, oak activated carbon, spruce activated carbon, coconut activated carbon, acacia seed activated carbon, and peach seed activated carbon may be used. The wood activated carbon preferably has a specific surface area of 800 m ² / g or more and a particle size of 100 mesh or less.

The nano-metal-containing material used in the first bio-filter 121 is impregnated with the nanomaterial in the wood activated carbon, which further enhances the attraction force of the wood activated carbon, thereby increasing the removal efficiency of the harmful substances.

The nano-metal-containing material preferably contains at least one of metals such as Fe, Cu, Mg and Ca, and metal oxides such as SiO2, Al2O3, MgO, and CaO. The diameter of the nano metal is preferably 30 nm or less, more preferably 10 nm or less, and the content thereof is preferably 300 to 20,000 ppm based on the activated carbon mass.

The hydrophilic adsorbent used in the first bio filter 121 is a substance added to adsorb a soluble substance preferentially in the first bio filter 121, and zeolite, kaolin, bentonite, or the like may be used.

The first biofilter 121 is manufactured by preparing a coating slurry, coating the coating slurry on the porous matrix layer, and then heat-treating the coating slurry. The coating slurry contains 10 to 20 wt% of wood activated carbon, 10 to 20 wt% of hydrophilic adsorbent, Polymer resin in an amount of 5 to 15 wt%, and the remainder in water to 300 to 20,000 ppm of a nano-metal-containing substance based on the amount of activated carbon. The water-dispersible polymer resin is preferably at least one selected from a water-dispersible polyurethane resin and a water-dispersible acrylic resin.

As shown in FIG. 4, the first bio-filter 121 preferably stacks several porous matrix layers 121a. In this case, the harmful components in the material to be treated can be more efficiently removed have.

The first bio-carrier 122 also has a function of adsorbing harmful harmful components and decomposing them into microorganisms. Like the first bio-filter 121, a filter matrix and an adsorbent having excellent adsorption properties attached to the matrix and a nano- And may further comprise a hydrophilic adsorbent.

The matrix of the first bio-carrier 122 is preferably made of a material that is more elastic than the matrix of the first bio-filter 121 because it provides more space for the proliferation of more microorganisms and the degradation of the soluble harmful components .

As the matrix of the first bio carrier 122, a material such as polyurethane or the like may be used. The adsorbent and the hydrophilic adsorbent used in the first bio carrier 122 are the same as those of the first bio filter 121. The manufacturing method and the components of the coating slurry are also the same as those of the first bio filter 121. [

As described above, when the soluble substance is absorbed and adsorbed in stages by the injection nozzle mounting portion 112, the first bio filter 121 and the first bio carrier 122, even if the soluble harmful component increases sharply, It is possible to prevent the filter 121 and the first bio carrier 122 from being overloaded, so that the growth environment of the microorganisms can be kept constant and excessive growth of microorganisms can be prevented. Therefore, the soluble organic substance can be effectively removed regardless of the concentration or the throughput of the soluble harmful component.

The filter matrix of the second bio-filter 131 is composed of at least one porous matrix layer selected from polypropylene, polyethylene, polyvinyl chloride (PVC), and the like, and a polyurethane matrix layer.

The filter matrix of the second bio-filter 131 may be formed by laminating the porous matrix layer 131a and the polyurethane matrix layer 131b (see FIG. 5). It is possible to prevent the deformation of the filter form when laminated, and to remove harmful components more efficiently due to the different structure between the laminated filter matrix layers. The second bio-filter 131 may have a pore size of 15 ppi.

The adsorbent and the nano-metal-containing material used in the second bio-filter 131 are as described in the first bio-filter 121.

The second bio-filter 131 is prepared by preparing a coating slurry, coating the filter matrix with a coating slurry, and drying the coating slurry. The coating slurry is prepared by adding 10 to 20 wt% of wood activated carbon powder (100 mesh or less), 5 to 10 wt% of water dispersible polymer resin, and the remainder of water to 300 to 20,000 ppm of nanometer metal- desirable. The water-dispersible polymer resin is preferably at least one selected from a water-dispersible polyurethane resin and a water-dispersible acrylic resin.

The third filter 140 is formed by laminating two third biofilters 141 in series. The filter matrices of the third biofilter 141 include at least one porous matrix layer 141a selected from polypropylene, polyethylene, polyvinyl chloride (PVC), and the like, and the porous matrix layer 141a And a polyurethane matrix layer 141b which is laminated and bonded to the polyurethane matrix layer 141b (see Fig. 6). The polyurethane matrix layer 141b may have a pore size of 25 ppi.

Specifically, the third bio-filter 141 has a porous matrix layer 141a, a polyurethane matrix layer 141b, and a porous matrix layer 141a stacked in this order from the bottom. The porous matrix layer 141a and the polyurethane matrix layer 141b ultimately remove moisture and trace amounts of harmful substances.

In the case of the conventional third biofilter, there is a problem that water permeability is lowered due to activated carbon filled in the porous matrix layer, water droplets adhere to the surface of the third biofilter, and a water film is formed. When the water film is formed on the surface of the third biofilter, the pressure of the blower 170 is not sufficiently transmitted to the filter portion due to pressure loss.

In the third biofilter 141 of the present invention, since the porous matrix layer 141a is not filled with activated carbon and holes are exposed, the pressure loss is prevented so that a water film is not formed.

The third filter 140 may be configured such that two third biofilters 141 having the same configuration are stacked in two consecutive layers, A sufficient amount of harmful substances can be finally removed while moisture is sufficiently removed.

The third biofilter 141 can be used by impregnating nanomaterials. Such nanomaterials have a harmful component removal efficiency, sterilization and antibacterial ability. The nano-metal-containing material preferably includes silver (Ag), iron (Fe), zinc (Zn) and the like excellent in sterilization and antibacterial ability. The diameter of the nano metal is preferably 30 nm or less, more preferably 10 nm or less. The third bio-filter 141 is prepared by preparing a coating slurry, coating the filter slurry with the coating slurry, and drying.

When the microorganisms are excessively proliferated, the pores existing in the biofilter or the bio carrier are clogged with microorganisms, so that the harmful substances can not pass smoothly, so that it is difficult to efficiently remove harmful substances. However, when the harmful substances are removed using various stages of biofilters as in the present invention, the biofilters in each stage are prevented from being overloaded, and the microbial growth environment is kept constant.

Accordingly, excessive growth of microorganisms is suppressed, and harmful substances can be effectively removed by the multi-stage bio-filter. In addition, efficient removal is possible because stepwise elimination of soluble and non-decomposable substances in harmful substances is possible.

Hereinafter, the configuration of the filter cartridge 200 will be described with reference to FIGS. 7 to 11. FIG.

The filter cartridge 200 includes an upper case 251 and a lower case 252 which are fastened to each other with a receiving space therein, first nano-coated biofilters 240 and 230 stacked in this order on the receiving space, 1 silicon support 220, a plasma filter 210, a second silicon support 220 ', and a second nano-coated biofilter 230', 240 '. Thus, the filter cartridge 200 is configured such that the upper case 251 and the lower case 252 are fastened together with the filter housed therein, so that the filter cartridge 200 can be easily exchanged or moved.

The filter cartridge 200 can be used in multiple stages in a mounting part such as the filter chamber 400 depending on the concentration of the harmful gas, the processing time, and the flow rate. The filter cartridge 200 is periodically cleaned and inspected after a period of use, and can be replaced if necessary.

The plasma filter 210 includes a support 211 having a plurality of openings formed thereon and a plasma generating electrode module 212 having flexibility and being fixed to the support body 211 as a whole. The length and shape of the plasma generating electrode module 212 fixed to the support body 211 can be easily changed according to conditions such as noxious gas and processing capacity.

The supporting body 211 is provided with a fixing portion 211a for fixing the plasma generating electrode module 212. [ The fixing portion 211a is formed, for example, as a hook so that the plasma generating electrode module 212 can be fixed to the hook.

The plasma generating electrode module 212 includes a cylindrical first electrode 212a, a cylindrical first dielectric 212c formed to surround the first electrode 212a, and a second dielectric 212c surrounding the first dielectric 212c. A cylindrical second electrode 212b formed to surround the second electrode 212b, and a cylindrical second dielectric 212d formed to surround the second electrode 212b. A plurality of through holes are formed in the second electrode 212b and the second dielectric 212d so that the generated plasma is emitted to the outside. The detailed configuration of the plasma generating electrode module 212 can be found in Japanese Patent Application No. 10-1573231.

The plasma generating electrode module 212 can be discharged at atmospheric pressure, and ozone is generated when the plasma is generated. The plasma generating electrode module 212 is fixed to the supporting body 211 while being bent in a zigzag shape so that plasma is generated through the entire area of the supporting body 211. The ozone generated in the plasma generating electrode module 212 is brought into contact with the material to be treated, thereby causing the harmful substances to be decomposed.

The first nano-coated biofilters 240 and 230 and the second nano-coated biofilters 230 'and 240' may include, for example, a first nano-coated PU filter 240 and 240 ' 230, and 230 '.

The first nano-coated PU filters 240 and 240 'remove particulate matter, oil, and the like contained in the inflow gas and provide a chemical decomposition function with the nano-metal. The standard of the filter is 300 mm x 300 mm x 10 T, and two sheets are arranged at the top and bottom. The raw materials used for the filter are ether filter foam (15 ppi) (ppi: pixel per inch, high-density products are larger in number), activated carbon, zeolite, nano metal, and binder. At this time, the content of the nano metal used is more than 3,000 ppm, the average size is 5 to 30 nm, and the nano metal is at least two kinds of Fe, Mg, Cu, Ag and TIO2. Followed by drying at 100 占 폚 for 6 hours.

The first nano-coated PP filters 230 and 230 'provide a function of dispersing the noxious gas contained in the inflow gas and chemically decomposing into nano-metal. The standard of the filter is 300 mm x 300 mm x 10 T, and two sheets are arranged at the top and bottom. PP (polypropylene), activated carbon, zeolite, nanometal, and binder were used as raw materials for the filter. At this time, the content of the nano metal used is at least 3,000 ppm, the average size is 5 to 30 nm, and at least two kinds of nano metals such as Fe, Mg, Cu, Ag and TIO2 are used. And dried at 100 ° C for 6 hours.

The first and second silicon supports 220 and 220 'support the plasma filter 210 therebetween so that the heat generated by the plasma filter 210 is absorbed by the first nano-coated biofilters 240 and 230 and the second nano- Is not transferred to the coating bio-filters 230 ', 240' and provides a photodegradation function. The dimensions of the first and second silicon supports 220 and 220 'are 300 mm x 300 mm x 2T. The raw materials used for the filter include silicon mesh, nano metal, TIO ₂ powder, and binder. The content of the nano metal is 200 ppm or more, the average size is 1 to 30 nm, the types of the nano metal are Ag, TIO ₂ Or more.

The ozone removal filter 300 shown in Fig. 7 is applied to remove residual ozone after the ozone generated in the filter cartridge 200 is used for the decomposition of noxious gas. When the residual ozone is discharged without being removed, it is harmful to the human body and adversely affects the microorganisms of the bio-deodorizing system installed at the rear end. Therefore, residual ozone should be removed as much as possible.

The ozone removing filter 300 is composed of a filter matrix, an adsorbent attached to the filter matrix, and a nano-metal-containing material, and the filter matrix may be further filled with an adsorption filler. The filter matrix may be composed of a porous matrix layer of polypropylene and a polyurethane matrix layer.

The filter matrix may be laminated with a porous matrix layer and a polyurethane matrix layer. It is possible to prevent deformation of the filter form when stacked, and to remove harmful substances more efficiently due to the different structure between the stacked matrix layers.

The ozone removing filter 300 is manufactured by preparing a coating slurry using activated carbon, zeolite, nano metal, etc., coating a coating slurry on a filter matrix, drying the filter slurry, and then filling the filter matrix with an adsorption filler. The adsorption filler is prepared by adding nano metal (Ag, Fe, Cu, Ni, Al, Mg, Ca, TiO2) to activated carbon, zeolite and inorganic adsorbent.

The plasma filter 210 of the present invention was applied to confirm the removal efficiency of harmful substances, and the length, thickness, and yield of the electrode module were confirmed, and application tests were conducted for the purpose of standardization. The plasma filter 210 was applied in two stages. As a result of treating the noxious gas, the treatment efficiency was confirmed to be 80% or more. The remaining noxious gas showed a treatment efficiency of 90% or more while passing through the deodorization system at the rear end.

①Toluene removal efficiency

It was confirmed that 82.5% of toluene was removed by one-stage application of the plasma filter 210. The test conditions were as follows: standard gas and air were mixed in a PE container of 50 L at a rate of 200 ppm and continuously supplied at a rate of 10 L / min. The removal efficiency was checked using a detection tube according to the voltage change.

It was confirmed that the removal efficiency was 82.5% when the voltage of the first stage electrode module was 8kV by using the electrode module having the diameter of Φ 3.03 mm. However, it was confirmed that the removal efficiency was drastically reduced when the voltage was 7 kV or less. When the voltage of the two-stage electrode module is 8kv, it is 90% removed. When the voltage is 7kV, the removal efficiency is 77.5% or less.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) toluene
(ppm) kHz kV A W Φ3.03 950 20 5 0.14 9 5 In Out 200 70 20 6 0.16 10 10 200 60 20 7 0.19 13 18 200 50 20 8 0.21 16.3 40 200 45 Φ3.03 1500 20 5 0.19 9.3 7 200 70 20 6 0.21 12.2 20 200 65 20 7 0.24 16.2 60 200 55 20 8 0.27 23.3 100 200 35

[Application result of the first stage of the plasma filter 210]

② Removal efficiency of hydrogen sulfide (H ₂ S)

The hydrogen sulfide was confirmed by the test that 79% of the hydrogen sulfide was removed by one stage of the plasma filter 210. The test conditions were as follows: standard gas and air were mixed at a rate of 120ppm in a 50L container made of PE and continuously supplied at a rate of 10L / min. The removal efficiency was checked using a detection tube according to the voltage change.

It was confirmed that the removal efficiency was 79% when the voltage of the first stage electrode module was 8kV by using the electrode module having the diameter of Φ 3.03 mm. However, it was confirmed that the removal efficiency was drastically reduced when the voltage was 7 kV or less. When the voltage of the two-stage electrode module is 8kV, 95.8% is removed. When the voltage is 7kV, the removal efficiency is 70.8%.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Hydrogen sulfide
(ppm) kHz kV A W Φ3.03 1500 20 7 0.22 16.1 80 In Out 120 90 20 8 0.26 21.5 100 120 25

[Application result of the first stage of the plasma filter 210]

③ Removal efficiency of trimethylamine

Trimethylamine was confirmed to be 60% removed by one application of plasma filter 210 and 88% removal by application of two applications. The test conditions were as follows: standard gas and air were mixed at a rate of 100ppm in a 50L container made of PE and continuously supplied at a rate of 10L / min. The removal efficiency was checked using a detection tube according to the voltage change.

It is confirmed that the removal efficiency is 60% when the voltage of the first stage electrode module is 8kV by using the electrode module of diameter Φ3.03mm. However, it was confirmed that the removal efficiency was drastically reduced when the voltage was 7 kV or less. When the voltage of the two-stage electrode module is 8kV, 88% is removed. When the voltage is 7kV or lower, the removal efficiency is 50%.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Trimethylamine
(ppm) kHz kV A W Φ3.03 1500 20 7 0.24 16.5 80 In Out 100 70 20 8 0.27 21.5 100 100 40

[Application result of the first stage of the plasma filter 210]

④ Removal efficiency of methyl mercaptan

 Methyl mercaptan was removed by 85% when the plasma filter 210 was applied in two stages. The test conditions were as follows: standard gas and air were mixed at a rate of 100ppm in a 50L container made of PE and continuously supplied at a rate of 10L / min. The removal efficiency was checked using a detection tube according to the voltage change. The removal efficiency is 85% when the voltage of the two-stage electrode module is 8kV and the removal efficiency is 60% when the voltage is 7kV or less.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Methyl mercaptan
(ppm) kHz kV A W Φ3.03 1500 × 2 20 7 0.27 18 80 In Out 100 40 20 8 0.31 25.6 100 100 15

[Application result of the second stage of the plasma filter 210]

⑤ Removal efficiency of dimethyl sulfide

It was confirmed through an application test that the dimethyl sulfide was removed by 82% in the case of the two-stage application of the plasma filter 210. The test conditions were as follows: standard gas and air were mixed at a rate of 100ppm in a 50L container made of PE and continuously supplied at a rate of 10L / min. The removal efficiency was checked using a detection tube according to the voltage change. The removal efficiency is 82% when the voltage of the two - stage electrode module is 8kv and the removal efficiency is 55% when the voltage is 7kV.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Dimethyl sulfide
(ppm) kHz kV A W Φ3.03 1500 × 2 20 7 0.27 18 80 In Out 100 45 20 8 0.31 25.6 100 100 18

[Application result of the second stage of the plasma filter 210]

⑥ Ammonia removal efficiency

Ammonia was removed by 86% when the plasma filter 210 was applied in two stages. The test conditions were continuously supplied to a 50 L container made of PE at a rate of 100 ppm standard gas at a rate of 10 L / min. The removal efficiency was checked using a detection tube according to the change of the voltage. The removal efficiency is 86% when the voltage of the two-stage electrode module is 8kV and the removal efficiency is 60% when the voltage is 7kV.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) ammonia
(ppm) kHz kV A W Φ3.03 1500 × 2 20 7 0.27 18 80 In Out 100 40 20 8 0.31 25.6 100 100 14

[Application result of the second stage of the plasma filter 210]

⑦ Removal efficiency of formaldehyde

Formaldehyde was removed by 84% when the plasma filter 210 was used in two stages. The test conditions were such that a 50 ppm standard gas was continuously supplied to a 50 L container made of PE at a rate of 10 L / min, and the removal efficiency according to the change in voltage was confirmed using a detection tube. The removal efficiency is 84% when the voltage of the two-stage electrode module is 8kV and the removal efficiency is 60% when the voltage is 7kV.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Formaldehyde
(ppm) kHz kV A W Φ3.03 1500 × 2 20 7 0.26 17.5 80 In Out 100 40 20 8 0.30 25.3 100 100 16

[Application result of the second stage of the plasma filter 210]

⑧ Removal efficiency of acetaldehyde

Acetaldehyde was confirmed to be removed by 90% when the plasma filter 210 was applied in two stages. The test conditions were as follows: 100 ppm standard gas was continuously supplied to a 50 L container made of PE at a rate of 10 L / min. The removal efficiency was checked using a detection tube according to the voltage change. The removal efficiency is 90% when the voltage of the two-stage electrode module is 8kV, and 75% when the voltage is 7kV.

Diameter (mm) Length (mm) Capacity O ₃
(ppm) Acetaldehyde
(ppm) kHz kV A W Φ3.03 1500 × 2 20 7 0.27 18 80 In Out 100 35 20 8 0.31 25.6 100 100 10

[Application result of the second stage of the plasma filter 210]

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

110: Housing
111: Material to be processed inlet
112: injection nozzle mounting portion
120: first filter unit
121: First biofilter
122: First bio-carrier
130:
131: first biofilter
132: First bio-carrier
140: third filter section
141: Third biofilter
141a: porous matrix layer
141b: polyurethane matrix layer
150: wash water storage tank
151, 152, 153, 154: conveying pipe
155: First injection nozzle
156: Second injection nozzle
157: Third injection nozzle
160: acid / alkali solution storage tank
170: blower
200: Filter cartridge
210: plasma filter
211: support
212: Plasma generating electrode module
220: first silicon support
230, 240: First nano-coated biofilter
251: upper case
252: Lower case
300: ozone removal filter
400: filter chamber
410: chamber body
420: inlet
430: Outlet

Claims (4)

An apparatus for removing harmful substances from a material to be treated,
A filter cartridge into which a material to be treated flows;
A housing through which the material to be processed passes through the filter cartridge;
A target material inlet located at a lower portion of the housing;
A plurality of first injection nozzles disposed at an upper portion of the inflow portion to be processed in the housing and having an upper portion to which water is injected;
A hydrophilic first filter unit spaced apart from the spray nozzle mounting unit and adapted to remove soluble harmful components while passing the material to be treated;
A second filter unit spaced apart from the first filter unit and adapted to remove insoluble harmful components while passing the material to be processed;
A third filter unit spaced apart from the second filter unit and passing the material to be processed to remove moisture and residual harmful substances;
A blower connected to an end of the housing to provide a suction force;
Lt; / RTI >
Wherein the filter cartridge has an upper case and a lower case fastened to each other to have a receiving space, a plasma filter is disposed in the receiving space,
The plasma filter includes a support 211 on which a plurality of openings are formed and a plasma generating electrode module 212 having flexibility and being bent and fixed to the support 211 as a whole,
The supporting body 211 is provided with a plurality of fixing portions 211a for fixing the plasma generating electrode module 212. The plasma generating electrode module 212 is bent and fixed to the supporting body 211,
The length and shape of the plasma generating electrode module 212 fixed to the supporting body 211 can be changed by changing the position where the plasma generating electrode module 212 is fixed, Device for removal. delete The method according to claim 1,
A filter chamber including an inlet through which a material to be treated flows, a chamber body connected to the inlet and having a receiving space, and an outlet connected to the chamber body;
Further comprising:
A plurality of the filter cartridges are detachably disposed in the chamber body at predetermined intervals so that a material to be processed flowing through the inlet port passes through the plurality of filter cartridges in order to be discharged through the outlet port, For removing harmful substances. The method of claim 3,
Wherein the filter chamber further comprises an ozone removal filter disposed between the filter cartridge and the outlet to remove ozone from the material to be treated that has passed through the filter cartridge.

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