KR102086611B1 - Filtering system for greenhouse gas reduction including greenhouse gas monitoring system - Google Patents

Abstract

Disclosed is a greenhouse gas reduction filtering system including a greenhouse gas monitoring device. The disclosed greenhouse gas reduction filtering system comprises a collection cup; a primary filter member; a first supply pipe; a secondary filter member; a second supply pipe; a tertiary filter member; a third supply pipe; a nitrous oxide measurement member; and an output module.

Description

Filtering system for greenhouse gas reduction including greenhouse gas monitoring device

The present invention relates to a sewage treatment plant filtering system for removing greenhouse gases (especially nitrous oxide) generated in sewage treatment plants.

More specifically, the amount of nitrous oxide in each section is installed by installing a monitoring device that measures the amount of nitrous oxide contained in the sample compared to the amount of collected gas at a predetermined position near the filter member of the filtering system and transmits it to the user in real time. The present invention relates to a filtering system for a sewage treatment plant including a greenhouse gas monitoring device capable of effectively designing the performance evaluation, the lifespan evaluation, and the number of installation of filter elements according to the derived values.

One of the causes of global warming, reenhouse Gaese (GHG), includes carbon dioxide (CO ₂ ), nitrous oxide (N ₂ O), and methane (CH ₄ ), which are used to reduce emissions of major greenhouse gases. The importance of managing sources is becoming increasingly important.

Among these, nitrous oxide (N ₂ O) has a concentration of only 320 ppbv in the air, but GWP is 300 times higher than that of carbon dioxide, and thus a small amount of removal can provide a high effect. N ₂ O is a compound that is highly contributing to the destruction of the stratospheric ozone layer, and must be reduced.

Most of the N ₂ O released to the atmosphere is generated by biological denitrification and nitrification reactions. Denitrification reaction is nitrate (NO ₃ ^-) The nitrite (NO ₂ ^-) and nitric oxide (NO), and step by step in each reaction step in the reaction is reduced to N ₂ through the N ₂ O are each by a different enzyme Proceed. For some denitrifying microorganism does not have the gene of nitrous oxide reductase reducing the N ₂ O as it emits N ₂ O produced by denitrification because been recognized as the major source of N ₂ O and the gene of nitrous oxide reductase In the case of possessing denitrified microorganisms, it is known to generate N ₂ O according to various environmental conditions. Nitriding is a reaction in which ammonia (NH ₄ ⁺ ) is oxidized by aerobic nitriding microorganisms to NO ₂ ⁻ and NO ₂ ⁻ back to NO ₃ ⁻ . In many cases, ammonia oxidizers carry genes of nitrite reductase and nitric oxide reductase, and when they are expressed, it is known that nitrifier denitrification occurs to produce N ₂ O.

N ₂ O emitted from the environment occurs naturally in the soil and marine environment, but its amount has been greatly increased by human activities such as agricultural activities and sewage treatment.

In particular, sewerage is an important social capital for improving the people's living environment and preserving the quality of public waters.In sewage facilities, carbon dioxide (CO ₂ ) and sewage treatment emitted by energy generation and consumption, such as electricity and oil, are required. And greenhouse gases such as nitrous oxide (N ₂ O) produced during sludge incineration, methane (CH ₄ ) and N ₂ O emitted by aeration in water treatment processes. For this reason, there is a need for a technique for controlling greenhouse gases emitted from sewage systems.

However, data on nitrous oxide emissions from sewage treatment plants are generally very uncertain or missing. For this reason, it is time to identify all important sources and to eliminate or reduce them.

Document 1: Patent Publication No. 10-1000073 Document 2: Registered Patent Publication No. 10-1140282

The technical problem to be achieved by the present invention is to install a monitoring device for measuring the amount of nitrous oxide contained in this compared to the amount of collected gas at a predetermined position near the filter member of the filtering system and transmitting to the user in real time for each section To provide a filtering system for sewage treatment plants that can derive the amount of nitrous oxide, and includes a greenhouse gas monitoring device that can effectively design the performance evaluation of the filter, the life-span evaluation and the number of installation of filter elements according to the derived value. have.

In addition, the present invention provides a filtering system for a sewage treatment plant including a greenhouse gas monitoring device capable of effectively removing not only high concentrations but also low concentrations of nitrous oxide (N ₂ O) without using energy or chemicals.

The technical problem to be achieved in the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In order to achieve the above technical problem, a capture cup for collecting nitrous oxide (N ₂ O) generated in the bioreactor;
A primary filter member for primary removal of nitrous oxide contained in the collection gas collected in the collection cup;
A first supply pipe through which the collecting gas is supplied from the collecting cup to the primary filter member;
A secondary filter member for secondary removal of excess nitrous oxide contained in the trapped gas passing through the primary filter member;
A second supply pipe configured to supply collected gas from the primary filter member to the secondary filter member;
A tertiary filter member for tertiarily removing excess nitrous oxide contained in the trapped gas passing through the secondary filter member;
A third supply pipe configured to supply collected gas from the secondary filter member to the tertiary filter member;
Nitrous oxide measuring member for measuring the amount of nitrous oxide in each of the collected gas passing through the primary filter member inlet end of the first supply pipe, the second supply pipe, the third supply pipe and the outlet end of the third filter member;
An update storage module for storing each measured value measured by the nitrous oxide measuring member and updating in real time;
And an output module for outputting updated and stored data to the update storage module.
The nitrous oxide measuring member may include a solenoid valve configured to sample a portion of the collected gas passing through an inlet end of the first filter member, an outlet of the second supply pipe, a third supply pipe, and the tertiary filter member of the first supply pipe; And a nitrous oxide measuring sensor for sensing an amount of nitrous oxide relative to the amount of trapped gas discharged from the solenoid valve.
The filter housing of the first, second, and third filter members is provided with a confirmation window for visually confirming whether or not a tin is accommodated therein, and a luminous glow around the confirmation window for identification even at night or in a dark environment. The sheets are glued together
The adhesive for bonding the luminous sheet is at least one selected from the group consisting of ethylene vinyl acetate copolymer, polyvinylacetate, polyvinyl alcohol, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, and polyurethane. Tackifier resin composed of at least one selected from the group consisting of 40 to 80 parts by weight of the thermoplastic resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, aromatic modified aliphatic hydrocarbon resin, and hydrogenated hydrocarbon resin. 40 parts by weight, 1-5 parts by weight of rosin consisting of one or more selected from the group consisting of sorbitol, ethylene glycol, glycerin, glycerin diacetate, and pentaerythritol, 1-10 parts by weight of plasticizer, 1-10 parts by weight of filler And low greenhouse gases containing 0.1 to 1 parts by weight of antioxidant It provides a filtering system.

In an embodiment of the present invention, the 1, 2, 3 filter members include a filter housing; A horizontal discharge pipe installed at an inner lower side of the filter housing and configured to discharge upwardly through a nozzle while guiding the collected collecting gas in a horizontal direction; A carrier disposed above the horizontal discharge pipe inside the filter housing to remove nitrous oxide discharged through the horizontal discharge pipe by a microbial reaction; And a sewage injection nozzle disposed on the carrier inside the filter housing and spraying sewage supplied from the sewage supply member to the carrier to utilize as nutrients for microorganisms.

In an embodiment of the present invention, the surface of the collecting cup is coated with a surface protection coating, the surface protection coating agent, 45 to 54 parts by weight of epoxy resin, 5 to 14 parts by weight of acrylic resin, 10 to 40 weight of polyester resin 5-10 parts by weight of amine curing agent, 15-20 parts by weight of fiber reinforcing agent, 3-8 parts by weight of pigment, inorganic binder in sol state and inorganic binder in gel state in a weight ratio of 1: 1 to 1.1: 0.7 After mixing 12 parts by weight of inorganic binder and zinc acetate and ethanol at a molar ratio of 1 to 4: 1 to 8 to obtain a sol having a pH of 2 to 3, 0.05 to 5 parts by weight of the total weight of the inorganic ceramic was added to the sol. 30 to 34 parts by weight of inorganic ceramics, which are obtained by adding glycidol and 0.005 to 6 parts by weight of a condensing agent of the total weight of the inorganic ceramic and reacting for 30 to 50 minutes.

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According to the present invention, the monitoring member is installed in a plurality of elements, and the amount of nitrous oxide in each element is transmitted to the user in real time, so that the nitrous oxide removal efficiency, that is, the performance evaluation of the filter element is possible, and the removal efficiency is gradually decreased. It is also possible to evaluate the life of the filter member, there is an advantage that can effectively design and reflect the number of installation of the filter member according to the filtering efficiency of nitrous oxide.

In addition, while conventional nitrous oxide reduction technology using a chemical catalyst has a limited effect of reducing only high concentrations of nitrous oxide, according to an embodiment of the present invention, it is possible to reduce low concentrations of nitrous oxide, thereby reducing nitrous oxide efficiency. Can improve.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a block diagram of a GHG reduction filtering system including a GHG monitoring apparatus according to the present invention
Figure 2 is a detailed view of the inside of the filter member according to the invention
3 is an external view of the filter member
Figure 4 is a detailed view of the nitrous oxide measuring member according to the present invention

As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. 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.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled) with another part, it is not only" directly connected "but also" indirectly connected "with another member in between. "Includes the case. In addition, when a part is said to "include" a certain component, it means that it may further include other components, without excluding the other components unless otherwise stated.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

Attached Figure 1 is a block diagram of a filtering system for reducing the greenhouse gas including a greenhouse gas monitoring apparatus according to the present invention, Figure 2 is a detailed internal view of the filter member according to the present invention, Figure 3 is an external view of the filter member 4 is a detailed view of the nitrous oxide measuring member according to the present invention.

According to the drawings, the GHG reduction filtering system 10 including the GHG monitoring apparatus according to the present invention is the collection cup 200, the filter member 100, the supply pipe 300, the nitrous oxide measuring member 400 , Update storage module 500 and output module 600.

The capture cup 200 is for capturing nitrous oxide (N ₂ O, greenhouse gas) generated in the bioreactor 1, the collection cup 200 is composed of the anaerobic tank, anaerobic tank, aeration tank If so, it can be installed to move in position at the end of the first supply pipe of the supply pipe 300 to be movable in any one of the pairs. As another example, an end portion of the first supply pipe may be configured in the form of three branch pipes so as to be positioned above the anaerobic tank, the anaerobic tank, and the aeration tank, and the collection cup 200 may be installed in the required branch pipe. In this case, other branch pipes in which the collecting cup is not installed may be blocked by a valve.

On the other hand, the collection cup 200 is continuously exposed to a greenhouse gas such as nitrous oxide, so that the rust or corrosion problems are formed on the surface and the inner surface of the anti-corrosion and anticorrosive coating layer in such a harsh environment It is preferable.

The coating layer is excellent in adhesion to the collection cup, which is a metal material, and serves to form a surface protective coating layer having excellent mechanical strength due to a low curing shrinkage rate. The epoxy resin may include a bisphenol A type epoxy, a novolak type epoxy resin, an isocyanate modified epoxy resin, a bisphenol F type epoxy resin, and the like, and preferably a bisphenol A type epoxy having an epoxy equivalent (g / eq) of 200 to 800. A resin may be used, and bisphenol A type epoxy resin having excellent flexibility and corrosion resistance may be used by polymerizing epichlorohydrin and bisphenol A.

The acrylic resin improves the adhesion of the metal surface protective coating composition to form a surface protective coating layer having a high peel strength, thereby forming a surface protective coating layer having improved properties such as adhesion, water resistance, corrosion resistance, acrylic What was manufactured using the acryl monomers, such as a rate, a methacrylate, and glycidyl methacrylate, can be used.

The acrylic resin may include 5 to 14 parts by weight. When the content of the acrylic resin is less than 5 parts by weight, the adhesive strength with the housing is lowered, and when the amount is greater than 14 parts by weight, mechanical properties may be deteriorated.

The polyester resin serves to improve adhesion and durability with the housing, and ethylene glycol, butylene glycol and the like can be cited as a representative example. The polyester resin may include 10 to 40 parts by weight, and if the content of the epoxy resin is less than 10 parts by weight, a problem may occur that the adhesion and durability is lowered, and when the amount exceeds 40 parts by weight, the mechanical properties are degraded May occur.

The amine-based curing agent crosslinks the epoxy resin, the acrylic resin, and the polyester resin included in the coating composition for protecting the metal surface, and serves to cure by increasing the crosslinking density between the molecules. The alkylene polyamine, the polyalkylene polyamine, or a mixture thereof Can be used The amine-based curing agent may include 5 to 10 parts by weight, when the content of the curing agent is less than 5 parts by weight does not occur uniform curing of the epoxy resin is lowered mechanical properties of the primer layer, if more than 10 parts by weight A problem may occur in that mechanical properties such as adhesion to a metal structure and durability are deteriorated.

The fiber reinforcing agent is structurally and chemically combined with the polymer resin included in the coating composition for protecting the metal surface, thereby compounding physical properties, and serves to implement properties superior to the inherent physical properties, and thus the metal surface including the fiber reinforcing agent. Protective coatings can form a surface protective coating layer having excellent tensile properties and mechanical properties, and excellent long-term durability.

The fiber reinforcing agent may be a typical example of basalt fiber (basalt fiber), silicon carbide fiber (SiC fiber), carbon fiber (carbon fiber), glass fiber (glass fiber), piezoelectric fiber or a mixture thereof. , The fiber reinforcing agent is a length of 0.01 to 10 mm, the diameter of 1 to 30 ㎛ can be used.

15 to 20 parts by weight of the fiber reinforcing agent may be mixed, and if the content of the fiber reinforcing agent is less than 15 parts by weight, there may be a problem that the improvement of physical properties may not increase significantly. Problems may occur in which the coating layer is easily peeled off.

In particular, the fiber reinforcing agent may be used to be impregnated in the epoxy resin solution before mixing in the coating composition for the metal surface protection, basalt fibers prepared by impregnating the epoxy resin as described above improves the bonding strength and dispersibility in the coating for the metal surface protection. Thus, a metal surface protective coating agent having uniform physical properties can be obtained.

The pigment may be titanium dioxide, bismuth vanadate, cyanine green, carbon black, iron oxide, iron oxide, navy blue, cyanine blue or a mixture thereof, talc, feldspar, barium sulfate, silica, alumina, titanium dioxide , Gray white ceramic pigments that do not emit harmful substances, such as calcium carbonate, magnesium carbonate, alumina, mica, wollastonite, talc or mixtures thereof.

The pigment may be mixed 3 to 8 parts by weight, it is difficult to give a color when the content of the pigment is less than 3 parts by weight, and may cause a problem that the hiding power of the coating layer is not sufficiently secured when more than 8 parts by weight.

The inorganic ceramic is 12 parts by weight of the inorganic binder mixed with a sol inorganic binder and a gel inorganic binder in a weight ratio of 1: 1 to 1.1: 0.7, and mixed with zinc acetate and ethanol in a molar ratio of 1-4: 1-8. After stirring to obtain a sol having a pH of 2-3, 0.05 to 5 parts by weight of glycidol of the total weight of the inorganic ceramic and 0.005 to 6 parts by weight of a condensing agent of the total weight of the inorganic ceramic were added to the sol. Apply what is obtained by reacting for ˜ 50 minutes.

Such inorganic ceramics may use natural materials, but have high binding strength with other materials, and may improve physical properties such as hardness and wear resistance, heat resistance, and solvent resistance of the coating film.

The inorganic ceramics do not contain heavy metals or aromatic compounds, and use inorganic substances dissolved in nature as binders. As the natural inorganic binder, alumina (Al 2 O 3), silica (SiO 2) or a mixture thereof may be selected and used as an inorganic binder in a sol or gel state. In this way, unlike the conventional surface treatment agent used because the natural product does not cause problems such as harmful to the human body such as environmental hormone release, and shows the excellent characteristics to improve the working environment by using natural products.

In particular, the inorganic binder is able to prepare a composition exhibiting various physical properties by mixing the inorganic binder in the sol state and the inorganic binder in the gel state in a specific ratio.

For example, when the content of the inorganic binder in the sol state is high, the coating film is formed, but the hardness is very high, and thus the fragile property is more prominent, and when the content of the gel inorganic binder is high, the coating film is brittle and the coating film is not formed. Problems such as this appear more greatly. The content ratio of the inorganic binder in the sol state and the inorganic binder in the gel state is preferably in the weight ratio range of 1: 1 to 1.1: 0.7, and soft cure or uncured phenomenon may occur when the sol content is out of the above range. In addition, when the content of the gel increases outside the above range, it is not preferable because a coating film in a cracked or brittle state is formed. When the above range is satisfied, it is generally good to apply to various materials such as glass, quartz, metal including alloys, and plastic materials. Moreover, especially when it is applied to the product which requires high heat resistance, hardness, and abrasion resistance, it is good.

In addition, the inorganic ceramic is mixed in a molar ratio of zinc acetate: ethanol = 1 to 4: 1 to 8 and stirred to obtain a transparent sol of pH 2 to 3, the organic in the Glycidol, a monomer, is added by 0.05 to 5 parts by weight of the total weight of the inorganic ceramic, and 0.005 to 6 parts by weight of the total weight of the inorganic ceramic is added as a condensing agent and reacted for 30 to 40 minutes at 30 to 60 ° C. Can be.

On the other hand, the surface protective coating agent may further include a crosslinking agent. Here, the crosslinking agent may be composed of one or more mixtures selected from alkoxy silanes, amino silanes, epoxy silanes, vinyl silanes, mercapto silanes.

The filter member 100 includes a primary filter member 100a for primary removal of nitrous oxide contained in the trapped gas collected in the trapping cup 200, and excess gas included in the trapped gas that has passed through the primary filter member. Second stage filter member 100b for secondary removal of nitrous oxide of the third, third filter member 100c for tertiary removal of excess nitrous oxide contained in the trapped gas passed through the secondary filter member Can be. However, this is only an example, and if the removal efficiency is good, less may be configured, and if the removal efficiency is bad, more installations may be provided.

The first, second, and third filter members 100a, 100b, and 100c have the same configuration as follows.

That is, to remove nitrous oxide (N ₂ O) supplied from the first supply pipe by a microbial reaction, the filter housing 121, the horizontal discharge pipe 122, the carrier 123 and the sewage spray member 124 It may include.

The filter housing 121 may be provided in a sealed type, and an air outlet 121a for discharging air from which nitrous oxide has been removed may be provided at an upper side thereof.

In addition, the filter housing 121 is installed in the lower portion of the sewage tank 131 for supplying sewage to the carrier 123. Therefore, the sewage in the sewage tank 131 can be supplied by no power (by gravity).

In addition, the bottom surface of the filter housing 121 may be formed to be downwardly sloped from one side to the other side to collect sewage drained from the carrier 123 to one side, and the collected drainage water is pumped to the pump p. By the pumping and recovery to the sewage supply member 130 is recycled.

In addition, the filter housing 121 may be provided with a confirmation window 121b to visually check whether the carrier 123 is accommodated therein, and the identification of the filter housing 121 can be identified even at night or in a dark environment. The luminous sheet 121c may be bonded to each other.

The adhesive for adhering the luminous sheet 121c may include 40 to 80 parts by weight of a thermoplastic resin, 5 to 40 parts by weight of an adhesive resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of a plasticizer, 1 to 10 parts by weight of a filler, and It may include 0.1 to 1 parts by weight of antioxidant. The present invention is a hot melt adhesive composition, generally manufactured in a state of being bonded between the release agent and the silicone band, and serves to make the silicone band attached to the fabric by performing a press operation after removing the release agent when applied to the fabric. Hereinafter, each component will be described in detail.

The thermoplastic resin serves as a main component of the composition to control adhesion and cohesion. If the type includes a vinyl group or a hydroxyl group, the type is not particularly limited, and examples thereof include ethylene vinyl acetate copolymer, polyvinylacetate, polyvinyl alcohol, ethylene-acrylic acid copolymer and ethylene-methacrylic acid copolymer, and polyurethane. It may be composed of any one or more selected from the group consisting of.

The content of the thermoplastic resin is preferably 40 to 80 parts by weight based on the total composition. If the content is less than 40 parts by weight, the melt viscosity is high and the melt flow index is low, the workability is very poor, if the content exceeds 80 parts by weight it is difficult to exert sufficient adhesive force to be applied directly to the fabric.

The tackifier resin is a low molecular weight resin, lowers the melt viscosity to improve workability, improves the initial wettability of adhesion and adhesion of the adhesive on the surface of the adherend, and enables control of the solidification time.

The tackifying resin is not particularly limited in kind, but is preferably a petroleum resin. More specifically, the tackifier resin may be composed of one or more selected from the group consisting of aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, aromatic hydrocarbon resins, aromatic hydrocarbon-modified aliphatic hydrocarbon resins, and hydrogenated hydrocarbon resins.

The aliphatic hydrocarbon resins are commercial products such as Hikorez A-1100, Hikorez A-1100S, Hikorez C-1100, Hikorez R-1100, Hikorez R-1100S, and the like. In addition, alicyclic hydrocarbon resins include hydrocarbon resins containing dicyclopentadiene (DCPD) as monomers, and aromatic hydrocarbon resins are commercially available from Kolon Oil Co., Ltd. of Hikotack P-110S, Hikotack P-120, Hikotack P-120HS, Hikotack P-120S, Hikotack P-140, Hikotack P-140M, Hikotack P-150, Hikotack P-160, Hikotack P-90, Hikotack P-90S, Hirenol PL-1000, Hirenol PL-400. In addition, aromatic hydrocarbon-modified aliphatic hydrocarbon resins include Hikorez T-1080, Hikorez T-1100, etc. of Kolon Oils. Hydrogenated hydrocarbon resins may also be subdivided into hydrogenated aliphatic hydrocarbon resins, hydrogenated aromatic hydrocarbon resins, and the like. Sukorez SU-120, Sukorez SU-130 and Sukorez SU-90.

The tackifier resin is preferably a hydrocarbon resin having 4 to 10 carbon atoms, and specifically, C5 aliphatic resin, C9 aromatic resin, C5 / C9 aliphatic / aromatic copolymer resin, or the like may be used.

In addition, the tackifying resin of the present invention is more preferably characterized in that the hydrocarbon hydrocarbon resin containing dicyclopentadiene as a monomer, commercially available from Sukorez D-300, Sukorez D-390, Kolon Emulsifier (Korea), Sukorez SU-100, Sukorez SU-110, Sukorez SU-120, SukorezSU-130 and Sukorez SU-90.

On the other hand, the adhesive composition of the present invention can be used by mixing together the biodegradable hypoallergenic resin to the various petroleum resin described above.

The biodegradable hypoallergenic resin may be prepared by melt-mixing a monomer of a polymer into a biodegradable polymer, and polylactic acid is preferably used as the biodegradable polymer.

The polylactic acid is a polyester synthesized by polycondensation of lactic acid or ring-opening polymerization of lactide, and has a medium physical property between polyamide and polyethylene terephthalate, and is mainly composed of natural vegetable sugar components obtained from potatoes and corn. Biodegradability is high, but generally has high hardness, low elasticity, and poor durability.

The biodegradable polymer is melt-mixed with the same polymer monomer, wherein the biodegradable polymer partially bonds with the monomer, causing partial chain breakage, thereby lowering the overall number average molecular weight. As the number average molecular weight falls, the physical properties that can be used as the pressure-sensitive adhesive are exhibited, and the workability is increased.

With respect to 100 parts by weight of the polylactic acid, the lactic acid monomer may be mixed 20 to 30 parts by weight. When the monomer is mixed in less than 20 parts by weight, the number average molecular weight is high and hard to be used as a pressure-sensitive adhesive, when the monomer exceeds 40 parts by weight migration may occur on the surface and may also be difficult to use as an adhesive.

It is preferable that the mixing ratio of the petroleum resin and the biodegradable hypoallergenic resin is 1 to 2: 1 (w / w). When the mixing ratio of the petroleum resin is too high, the biodegradable hypoallergenic effect is hardly obtained, If the mixing ratio is too high, economic efficiency may be lowered and the overall adhesive effect may be lowered.

In addition, the content of the tackifying resin is preferably 5 to 40 parts by weight relative to the total composition. If the content is less than 5 parts by weight, the effect of lowering the melt viscosity due to the addition of the tackifying resin is insufficient, and there is a fear that the increase in the melt flow index is not so large that the workability may not be satisfactorily reached, and the content is more than 30 parts by weight. If the melt flow index increase rate due to the excess of the tackifier resin is not large, the economical efficiency is lowered, and the content of the thermoplastic polymer is relatively reduced, thereby reducing the overall physical properties of the composition.

The rosin serves to improve the overall adhesion of the adhesive composition and is harmless to the human body and acts as a natural preservative. The content of the rosin is preferably 1 to 5 parts by weight based on the total composition. If the content is less than 1 part by weight, it is difficult to obtain an effect of improving the adhesion, and if the content exceeds 5 parts by weight, there is a problem in that the adhesion is increased during processing and processing into the product becomes difficult.

The plasticizer is used to impart flexibility and adhesion to the polymer, and the type of plasticizer according to the present invention is not particularly limited, for example, sorbitol, ethylene glycol, glycerin, glycerin diacetate, and pentaerythritol. It may consist of one or more selected from the group consisting of.

The amount of the plasticizer is preferably 1 to 10 parts by weight based on the total composition. If the content is less than 1 part by weight, the effect of the addition of the plasticizer is insignificant. If the content is more than 10 parts by weight, the economical efficiency may be reduced by excessive use of the plasticizer, and there is a concern that the overall physical properties of the adhesive may be lowered.

The filler is used to control the reinforcement and flow of the composition. The type of filler is not particularly limited, and for example, calcium carbonate, clay, bentonite, calcium stearate, or the like can be used.

On the other hand, the adhesive is subjected to a press operation on the luminous sheet, at this time, there is a possibility that a poor adhesion due to the amount of the adhesive composition is removed due to the presence of the hole in the sheet.

Thus, the adhesive of the present invention may further comprise a nano silica that can improve the adhesion by allowing the adhesive composition to be uniformly distributed on the sheet surface. At this time, the content of the nano silica is preferably 0.1 to 5 parts by weight, and the size of the nano silica (primary particles) is preferably 100 nm or less.

If the content of the nano-silica is less than 0.1 parts by weight, the effect of the addition of nano-silica is insignificant, and if the content exceeds 5 parts by weight, not only the adhesive strength is lowered, but also a bad phenomenon that blooming occurs on the surface of the adhesive as time passes. May occur.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

60 parts by weight of ethylene-vinylacetate copolymer, 25 parts by weight of Sukorez D-300, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of ocherite, 2 parts by weight of pulp powder and 1 part by weight of ascorbic acid Melt kneading was carried out to prepare an adhesive composition, and then molded into pellets. At this time, the biodegradable hypoallergenic resin was prepared by melt-mixing 2.5 parts by weight of lactic acid monomer to 100 parts by weight of polylactic acid at 160 ° C. for 5 minutes.

60 parts by weight of ethylene-vinylacetate copolymer, 15 parts by weight of Sukorez D-300, 10 parts by weight of biodegradable hypoallergenic resin, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of loess, 2 parts by weight of pulp powder and ascorb 1 part by weight of acid was mixed and melt kneaded at 170 to 180 ° C. to prepare an adhesive composition, and then molded into pellets. At this time, the biodegradable hypoallergenic resin was prepared by melt-mixing 2.5 parts by weight of lactic acid monomer to 100 parts by weight of polylactic acid at 160 ° C. for 5 minutes.

Except for adding 1 part by weight of nano silica, it was prepared in the same manner as in Example 1, and was made as Example 3.

Experimental Example

(1) Mesh adhesive strength

In order to evaluate the mesh adhesive strength of the hot melt adhesive, the adhesive pellet quantified on the luminous sheet was melt-coated at 170 ° C., and then pressed at a pressure of 60 kgf / cm 2 for 30 seconds at 130 ° C., and the mesh adhesive strength ( Kgf / cm 2) was measured.

 (2) Melt Flow Index

The heating cylinder of the melt flow rate meter was filled with a pellet type adhesive and melted at 160 ° C. for about 5 minutes. The weight of the adhesive (g) passed through the cylinder for 10 minutes was measured by placing a weight of 3 kg.

division Example 1 Example 2 Example 3 Comparative example Mesh adhesive strength (kgf / cm ² ) 14 13 17 11 Melt Flow Index
(g / 10 min, 160 ° C) 18 16 22 17

As can be seen from the table, it was confirmed that the adhesive composition of the present invention has improved adhesion and flow index than the existing product, even when using the biodegradable hypoallergenic resin was confirmed that the adhesion and flow index does not fall significantly. In addition, when the nano-silica is mixed, the flow index can be seen to increase significantly.

The horizontal discharge pipe 122 is discharged toward the carrier 123 upward through the nozzle 122a while guiding the nitrous oxide delivered by the first supply pipe in the horizontal direction while being installed in the lower side of the filter housing 121. It plays a role.

The carrier 123 is disposed above the lateral discharge tube 122 inside the filter housing 121 and serves to remove nitrous oxide discharged through the lateral discharge tube by a microbial reaction. It can be provided as one of urethane foam. Organic wood chip is a carbon source that is a food source for microorganisms, so it is advantageous for microorganisms to adhere effectively at the early stage of microbial inoculation, but channeling phenomenon of packing layer of wood chip over time As a result of this, waste gas passes through, a large pressure difference is generated, and the efficiency of removing pollutants is remarkably lowered. The ceramic carrier has a porous characteristic that the carrier has. Although the pores of the ceramic carrier are large, the concentration of microorganisms is basically high. Sikineunde there is a limit. Therefore, the removal efficiency of contaminants is inferior to organic wood chips, and there is a disadvantage in terms of economical cost of the carrier.

On the other hand, polyurethane foam has a semi-permanent life of more than 30 years because it is made of an inorganic material and is not oxidized by microorganisms native to the packing layer. In addition, the pore is composed of 70% open cell, so that oxygen can be delivered smoothly and 30% of the closing cell can be firmly fixed. Has efficiency.

In particular, the pore of the polyurethane foam is preferably 11 to 13 ppi, the density is 35kg / m ³ . It is able to fix microbial fixation and aerobic microbial and anaerobic microorganisms, which is more effective for microbial oxidation.

Therefore, among the wood chips, ceramics, and polyurethane foams described above, the polyurethane foam may have the greatest effect.

The sewage injection member 124 is disposed above the carrier in the filter housing 121, and serves to utilize the nutrients of microorganisms by spraying the sewage supplied from the sewage supply member 130 to the carrier 123. . The sewage injection member 124 is connected to the main pipe 124a and the main pipe 124a of the sewage tank 131 of the sewage supply member 130 and along the longitudinal direction of the carrier 123. It may be composed of a spray pipe 124b is disposed, and a plurality of spray nozzles 124c disposed on a predetermined portion of the spray pipe 124b to inject sewage toward the carrier 123.

The supply pipe 300 supplies the first supply pipe 310 for supplying the collection gas from the collection cup 200 to the primary filter member 100a and the collection gas of the primary filter member to the secondary filter member 100b. The second supply pipe 320 and a third supply pipe 330 for supplying the collected gas of the secondary filter member to the tertiary filter member (100c). Of course, the supply pipe 300 may be added or subtracted in proportion to the number of installation of the filter member 100.

Nitrous oxide measuring member 400 is the inlet end of the first filter member (100a), the second supply pipe 320, the third supply pipe 330 and the third filter member (100c) outflow from the first supply pipe (310) By measuring the amount of nitrous oxide in each trapping gas passing through the stage, the solenoid valve 410 for sampling a portion of the trapping gas passing through each measurement site, and the nitrous oxide relative to the amount of trapped gas discharged from the solenoid valve It may be composed of a nitrous oxide measuring sensor 420 for sensing the amount of. Reference numeral 430 denotes a flowmeter for maintaining a constant flow rate.

The update storage module 500 stores each measured value measured by the nitrous oxide measuring sensor 420 of the nitrous oxide measuring member 400 and updates in real time.

The output module 600 outputs the updated and stored data in the update storage module 500, and the nitrous oxide of each element measured by the nitrous oxide measuring member 400 through a monitor of a PC or a screen of a mobile phone. The measured value can be output numerically or graphically.

Although the above-described embodiment has been described with respect to the preferred embodiment of the present invention, the present invention is not limited to this, it is specified that it can be carried out in various forms without departing from the technical spirit of the present invention.

10: Filtering system for reducing greenhouse gas
100: filter member
200: capture cup
300 supply pipe
400: nitrous oxide measuring member
500: update storage module
600: output module

Claims (4)

A collecting cup for collecting nitrous oxide (N ₂ O) generated in the bioreactor;
A primary filter member for primary removal of nitrous oxide contained in the collection gas collected in the collection cup;
A first supply pipe through which the collecting gas is supplied from the collecting cup to the primary filter member;
A secondary filter member for secondary removal of excess nitrous oxide contained in the trapped gas passing through the primary filter member;
A second supply pipe configured to supply collected gas from the primary filter member to the secondary filter member;
A tertiary filter member for tertiarily removing excess nitrous oxide contained in the trapped gas passing through the secondary filter member;
A third supply pipe configured to supply collected gas from the secondary filter member to the tertiary filter member;
Nitrous oxide measuring member for measuring the amount of nitrous oxide in each of the collected gas passing through the primary filter member inlet end of the first supply pipe, the second supply pipe, the third supply pipe and the outlet end of the third filter member;
An update storage module for storing each measured value measured by the nitrous oxide measuring member and updating in real time;
And an output module for outputting updated and stored data to the update storage module.
The nitrous oxide measuring member may include a solenoid valve configured to sample a portion of the collected gas passing through an inlet end of the first filter member, an outlet of the second supply pipe, a third supply pipe, and the tertiary filter member of the first supply pipe; And a nitrous oxide measuring sensor for sensing an amount of nitrous oxide relative to the amount of trapped gas discharged from the solenoid valve.
The filter housing of the first, second, and third filter members is provided with a confirmation window for visually confirming whether or not a tin is accommodated therein, and a luminous glow around the confirmation window for identification even at night or in a dark environment. The sheets are glued together
The adhesive for bonding the luminous sheet is at least one selected from the group consisting of ethylene vinyl acetate copolymer, polyvinylacetate, polyvinyl alcohol, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, and polyurethane. Tackifier resin consisting of at least one selected from the group consisting of 40 to 80 parts by weight of the thermoplastic resin, aliphatic hydrocarbon resin, alicyclic hydrocarbon resin, aromatic hydrocarbon resin, aromatic modified aliphatic hydrocarbon resin, and hydrogenated hydrocarbon resin. 40 parts by weight, 1-5 parts by weight of rosin consisting of one or more selected from the group consisting of sorbitol, ethylene glycol, glycerin, glycerin diacetate, and pentaerythritol, 1-10 parts by weight of plasticizer, 1-10 parts by weight of filler And low greenhouse gases containing 0.1 to 1 parts by weight of antioxidant For filtering system.
The method according to claim 1,
The 1, 2, 3 filter member,
A filter housing;
A horizontal discharge pipe installed at an inner lower side of the filter housing and configured to discharge upwardly through a nozzle while guiding the collected collecting gas in a horizontal direction;
A carrier disposed above the horizontal discharge pipe inside the filter housing to remove nitrous oxide discharged through the horizontal discharge pipe by a microbial reaction; And
And a sewage injection nozzle disposed on the carrier inside the filter housing and spraying sewage supplied from the sewage supply member to the carrier to utilize as nutrients for microorganisms.
The method according to claim 1,
The surface of the collecting cup is coated with a surface protective coating, the surface protective coating, 45 to 54 parts by weight of epoxy resin, 5 to 14 parts by weight of acrylic resin, 10 to 40 parts by weight of polyester resin, 5 to 10 amine curing agent Parts by weight, 15 to 20 parts by weight of the fiber reinforcing agent, 3 to 8 parts by weight of the pigment, 12 parts by weight of the inorganic binder mixed with the inorganic binder in the sol state and the gel state in the weight ratio of 1: 1 to 1.1: 0.7 and zinc acetate And ethanol were mixed and stirred at a molar ratio of 1 to 4: 1 to 8 to obtain a sol having a pH of 2 to 3, and then 0.05 to 5 parts by weight of glycidol and the whole inorganic ceramic of the total weight of the inorganic ceramic were added to the sol. Filtering for greenhouse gas reduction including a greenhouse gas monitoring device comprising 30 to 34 parts by weight of inorganic ceramics, which is obtained by adding 0.005 to 6 parts by weight of a condensing agent and reacting for 30 to 50 minutes. System.
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