JP2004203988A - Method for manufacturing particulate titanium oxide-containing powdery ion exchange resin adsorbent, and method and apparatus for cleaning air or water using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for improving the environment of a residence space by removing pet odors, disinfectant odors, cooking odors or bad smells from a production site and air-cleaning, or for easily and inexpensively sanitizing water including waste water from a factory. <P>SOLUTION: A powdery ion exchange resin-fiber adsorbent comprises a particulate titanium oxide-containing powdery ion exchange resin adsorbent for purifying air or water, and exhibits excellent functions for reacting with a floating dust or a bad smell component thereby adsorbing and removing them while titanium oxide for a photocatalyst exhibits an excellent bad smell-decomposing function. There are provided a manufacturing method and a utilizing method of a new material exhibiting enhanced synergetic effects by combining these two functions, and an apparatus therefor. The technique enables to utilize waste articles/recycled articles as a raw material of the new material and is simply and inexpensively applied in a wide range of applications. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

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【発明の効果】
本発明は、以上説明したような構成であるので、以下に記載するような効果を奏する。
【００７５】
粒状イオン交換樹脂を気流粉砕することで調製した粉末イオン交換樹脂は、物理的吸着機能が著しく向上することが認められており、溶液の濾過材としての利用方法は本発明者等が開発してきたが、空気中の浮遊粉塵や悪臭成分の除去については未開発の分野であった。本発明によって、粉末イオン交換樹脂に微粒子状酸化チタンを含有させて相乗効果を高め、微粒子状粉末イオン交換樹脂の利用価値を著しく高めることができる。
【００７６】
粉末イオン交換樹脂の原料は、発電所などの産業廃棄物である使用済み粒状イオン交換樹脂を細かく粉砕して本発明に使用する粉末イオン交換樹脂の材料として使用でき、また微粒子状酸化チタン含有粉末イオン交換樹脂繊維吸着体に使用する繊維も、反毛業者の作るリサイクル繊維が活用できるので、資源有効活用の面から有効な技術である。
【００７７】
イオン交換樹脂は、特定の臭気に自在に適応できるように調製できる素材であり、本発明の素材が安価で簡便な方法と装置であるので、空気又は水の清浄化に広範囲な分野での適用が期待される。
【００７８】
空気や水の清浄化を目的とする各種技術があるが、本発明は光触媒酸化チタンによる空気浄化作用と微生物膜による水の浄化作用のように寿命の長い作用効果を合わせた相乗効果により、効果対費用及び効果対期間に優れている。
【図面の簡単な説明】
【図1】本発明の空気又は水の清浄化工程概念図である。
【図2】本発明の一実施形態を示す清浄化装置の立断面図である。
【符号の説明】
１．水槽
２．水
３．微粒子状酸化チタン包含粉末イオン交換樹脂繊維吸着体又は磁石包含微粒子状酸化チタン含有イオン交換樹脂繊維吸着体
４．エアーポンプ
５．エアー導入パイプ
６．エアーリフトパイプ
７．傘状落水板
８．通流可能な吸着体収納容器
９．空気流方向を示す矢印
10．水流方向を示す矢印[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to making living spaces such as dwellings, public facilities, and work areas comfortable by removing airborne dust and odor components existing in the air or water.
[0002]
[Prior art]
Methods for removing bad smells include masking method, which is a sensory deodorization method, physical deodorization method using activated carbon, zeolite, etc., microbial method, chemical deodorization method, and electrical deodorization method using plasma and others. There is a device for purifying air by flowing an adsorbent such as chitosan or chitosan or a polymer functional membrane. Recently, there has been an attempt to purify air by decomposing ammonia odor and cigarette tar by using titanium oxide for photocatalyst. There is no method or apparatus for purifying air or water that utilizes the synergistic action of the action of adsorbing water and the action of decomposing malodorous components of titanium oxide.
[0003]
An ion exchange resin commonly used in industry is a polymer obtained by adding an acidic or alkaline exchange group to a copolymer of styrene and divinylbenzene, and is a spherical granular substance having a diameter of 0.3 to 2 mm. .
[0004]
The powder ion-exchange resin used in the present invention is a granular ion-exchange resin that is commonly used in industry, an ion-exchange resin prepared by mechanical pulverization into fine particles having an average particle diameter of 1 to 50 μm, and is not generally commercially available. Are used in special industrial fields.
[0005]
The powder ion-exchange resin used in the present invention does not necessarily need to be brand new, and it is sufficient to use used granular ion-exchange resin in the form of fine particles.
[0006]
Japanese Patent Application Laid-Open No. 2000-312881 and Japanese Patent Application No. 2001-277268 disclose a filtration detergent and a simple planter for water using a particulate ion-exchange resin adsorbent. There is nothing.
[0007]
It has been known that powdered ion exchange resin has an excellent odor component adsorption action, but there is no development example of a device used for removing odors in the air. The most likely reason is that the resin was expensive and was not studied. This is a new technology that became possible only when raw materials were obtained at low cost by crushing used ion exchange resins. In addition, there is no example in which an attempt is made to purify air or water with an ion exchange resin containing fine particulate titanium oxide.
[0008]
[Problems to be solved by the invention]
In recent years, there has been an increasing need for improving living spaces such as removing odors and purifying air. Therefore, a method for producing a particulate titanium oxide-containing powder ion-exchange resin adsorbent and a particulate titanium oxide-containing powder ion-exchange resin fiber adsorbent, which are filter materials used for cleaning, and using the filter material to remove air or water. It is an object to provide an inexpensive method for cleaning.
[0009]
[Means for Solving the Problems]
The first aspect of the present invention, which is a means for solving the problem, is characterized in that the powdered ion-exchange resin having a particle size of 1 to 50 μm and the particulate titanium oxide having a particle size of 100 nm or less are contact-mixed in water. A method for producing a fine particle titanium oxide-containing powder ion exchange resin adsorbent for purifying air or water, the second aspect of the present invention relates to a powder ion exchange resin having a particle diameter of 1 to 50 μm according to claim 1. A powdered ion-exchange resin containing fine-grained titanium oxide for purifying air or water, wherein fine-grained titanium oxide having a particle size of 100 nm or less is contacted and reacted in water with cut fibers having a fiber thickness of 5 denier or less. The third aspect of the present invention is a method for producing a fiber adsorbent. The third aspect of the present invention is that the ion exchange resin used in the first and second aspects is used, and the fine particle ion exchange containing fine titanium oxide is used. A fourth aspect of the present invention is a method for producing a powdered ion-exchange resin fiber adsorbent containing an exchanged resin adsorbent or a particulate ion-exchanged titanium oxide containing fine particle titanium oxide. A method and an apparatus for purifying air or water using a powder ion-exchange resin fiber adsorbent containing powdered titanium oxide.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described in the order of a method for manufacturing an adsorbent, a cleaning method using the adsorbent, and an example. First, a method for producing a fine particle titanium oxide-containing powder ion-exchange resin adsorbent will be described. Raw materials, i.e., fine particle titanium oxide having a particle size of 100 nm or less, and anion and cation powder ion-exchange resin of a powder having a particle size of 1 to 50 μm are charged into a stirring tank at an appropriate weight ratio, and the whole of the charged raw materials can be stirred. A small amount of water is injected, and the mixture is stirred so that both raw materials can be brought into contact with each other to prepare a milky aqueous suspension. This is the powdery ion-exchange resin adsorbent containing the finely particulate titanium oxide in the form of milky liquid. However, in order to facilitate storage, the adsorbent may be in a wet state in which water is appropriately evaporated or in a state close to a dry powder.
[0011]
The fine particle titanium oxide-containing powder ion-exchange resin adsorbent prepared as described above has a fine particle titanium oxide having a particle diameter of 100 nm or less having an ion-exchange group in a pore portion of a powder ion-exchange resin having a particle diameter of 1 to 50 μm. It is estimated that the amount of particulate titanium oxide retained by some weak binding action and retained in the powdered ion exchange resin increases as the particle size of the particulate titanium oxide becomes finer.
[0012]
Next, the method for producing the powdery ion-exchange resin fiber adsorbent containing finely divided titanium oxide according to claim 2 of the present invention will be described. The production method comprises a first step of producing a powdered ion exchange resin fiber and a second step of incorporating the particulate titanium oxide into the fiber. Agglomerates of powdered anion and particulate cation exchange resin with particle size of 1 to 50 μm and hydrophilic microfibrous cellulose (trade name Celish) or bulk ceramic fiber are made into a stirring tank filled with water. Then, cut fibers such as polyester, polypropylene or rayon are put into the stirring tank, mixed in water and integrated to prepare powder ion exchange resin fibers. The powder ion-exchange resin fiber thus prepared has a large porosity and is in a state where it can easily contain fine-grained titanium oxide.
[0013]
The cut fibers used in the production of powdered ion-exchange resin fibers are difficult to prepare a fibrous adsorbent having a uniform composition because the affinity of the cut fibers with the powdered resin or fine-grained titanium oxide deteriorates as the fibers become thicker. Ultrafine cut fibers made of short fibers of 5 denier or less are desirable.
[0014]
Further, it was confirmed that the fibers of the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent do not necessarily have to be new, and that so-called recycled fibers regenerated by a so-called anti-hair company can be used.
[0015]
Next, in the second step, the fine particle titanium oxide is included in the powder ion exchange resin fiber. A milky aqueous solution in which fine-particle titanium oxide having a particle size of 100 nm or less is suspended in water is poured into a stirring tank containing powdered ion-exchange resin fibers, mixed with the powdered ion-exchange resin fibers, stirred and dispersed therein. Then, an ion exchange resin fiber adsorbent containing fine titanium oxide powder is produced. Excess water used for stirring is drained or evaporated after precipitation of the stirred solution in the tank is finished. The action and effect of the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent is greater in the wet state. However, in the case of drying, the action and effect can be recovered by adding water to make it wet, so that there is no particular need to be concerned with the amount of water during storage and transportation. In addition, after production and before use for the purpose of use, it is preferable to store it in a container that can be sealed as much as possible in order to avoid a reduction in the cleaning effect due to adsorption of floating dust and malodorous components.
[0016]
The inclusion ratio of the fine particle titanium oxide to the ion-exchange resin prepared as described above is, for example, ultrafine titanium oxide having an average particle diameter of 9 nm of Furukawa Machinery Metals, trade name DN-1-0, as the fine particle titanium oxide. When used, an ultrafine particulate titanium oxide-containing powder ion-exchange resin fiber adsorbent that adsorbs and incorporates up to about 10% of the ion-exchange resin by weight can be produced.
[0017]
The composition of the particulate ion exchange resin when used for the purpose of removing offensive odors will be described. It is important to selectively use the composition of the ion exchange resin depending on the malodorous component, unlike the filter mainly composed of an anion exchange resin for purifying water. A cation exchange resin, preferably a strongly acidic cation exchange resin, is mainly used for removing cations such as ammonia, and an anion exchange resin is preferably used for removing anionic components such as organic acids. It is preferable to use resin as a main component.
[0018]
Hereinafter, a method and an apparatus for purifying air or water using the adsorbent of claims 1 to 3 of claim 4 will be described.
[0019]
Even if the content of the offensive odor in the air is as small as one billion parts by volume (ppb unit), it is strongly perceived by humans. When the air containing the malodorous component is brought into contact with water, the odorous component is immediately dissolved in the water. Therefore, in order to enhance the cleaning action, air or water containing a malodorous component is contacted with a particulate titanium oxide-containing ion-exchange resin adsorbent containing fine titanium oxide or a powder ion-exchange resin fiber-containing adsorbent containing fine particulate titanium oxide as much as possible in contact area. It is important to make it larger.
[0020]
A method for purifying air or water using the adsorbent produced by the above-described method will be described. A first method for purifying air containing suspended dust and malodorous components is that, even if there is no fiber, a malodorous component is contained in the aqueous suspension of the fine particle titanium oxide-containing powder ion exchange resin according to the method of claim 1. In this method, air is introduced by an air pump and passed therethrough.
[0021]
A second method for purifying air containing airborne dust and odorous components is the present invention, wherein the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent according to claim 2 or 3 is provided with a gap through which air can flow. This is a method in which the container is placed in a container having holes or openings and placed in a closed system space that generates an odor. The malodorous components in the air are brought into contact with and adsorbed by the adsorbent due to the flow of the air in the closed space, so that an excellent cleaning action can be exhibited.
[0022]
A third method of purifying air containing airborne dust and odorous components is to put the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent of claim 2 or 3 in a water tank containing water and float the air. Air containing dust and odor components is sucked by an air pump and introduced into water to dissolve floating dust and odor components in water. The aqueous solution and the powdered ion exchange resin come into contact with each other, and due to the chemical and physical adsorption action of the powdered ion exchange resin, floating dust and malodorous components in the water are captured by the powdered ion exchange resin and cleaned.
[0023]
The adsorption capacity of the powder ion-exchange resin has a certain capacity, and eventually becomes equilibrium and can no longer be adsorbed. At this stage, microorganisms in water are captured and adsorbed to form a biofilm. In particular, a particulate ion exchange resin having a large specific surface area with an average particle diameter of about 10 microns, particularly a basic ion exchange resin, captures and adsorbs microorganisms in water almost completely.
[0024]
By incorporating fine particulate titanium oxide in the powdered ion exchange resin filtration adsorbent, the decomposing action of harmful components such as ammonia in an aqueous solution was improved to a level incomparable to the case of using each alone. The reason for this is presumed to be that the reaction between the harmful component trapped by the ion exchange resin exchange group and the particulate titanium oxide trapped in the pores of the ion exchange resin is activated.
[0025]
To purify air or water, the excellent chemical / physical adsorption of ionic components of the particulate ion exchange resin with an average particle size of 50 μm or less and the action of microbial membranes that evolve when used in water. It must be used alone or in combination and used effectively.
[0026]
It is well known that titanium oxide generally oxidizes and decomposes odorous components. However, when a powdered ion-exchange resin fiber adsorbent and a particulate titanium oxide are used in combination, air discharged through the adsorbent is exhausted. An unexpected effect of improving the cleansing effect was observed.
[0027]
The most effective adsorbent for the cleaning action is an ultrafine particulate oxide prepared by mixing and stirring an ultrafine particulate titanium oxide powder having a particle size of 10 nm or less with a fine powder ion exchange resin adsorbent having a particle size of 1 to 50 μm. It is a fine particle ion exchange resin fiber adsorbent containing titanium.
[0028]
The titanium oxide to be used may be any one as long as it has an oxidizing effect, but in order to uniformly disperse the titanium oxide and prevent separation from the fiber, a fine particle titanium oxide having a particle size of 10 μm or less, more preferably 100 nm or less. Ultrafine titanium oxide powder having a particle size of
[0029]
The advantage of the method for purifying water using the ion-exchange resin adsorbent, which has already been filed by the present inventors in Japanese Patent Application No. 2002-048937, is that when the adsorption capacity of the powder ion-exchange resin is reduced after a certain period of use, the water The microorganism adsorbed in the step forms a microbial membrane, and the ability of the microbial membrane to adsorb and decompose is continuously maintained. Also, what is characteristic is that when a magnetic field is applied to the microbial membrane, the effect of the bioreactor is doubled. This effect is extremely useful industrially.
[0030]
That is, the fine particle titanium oxide-containing powder ion-exchange resin adsorbent or the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent of the present invention is used for purifying air, and the powder ion-exchange resin fiber adsorbent using a magnetic field is applied to water. A more effective cleaning of air or water can be realized by a composite device used for cleaning air.
[0031]
For example, the present invention can be applied to a large-scale apparatus of an industrial-scale shower type or a water tank introduction type like the system shown in FIG. In either method, air containing suspended dust and malodorous components is passed through a fine particle titanium oxide-containing powder ion exchange resin fiber adsorbent produced by the method of claim 2 or 3 of the present invention to purify water. The water used in the step of dissolving the malodorous component is a powder ion-exchange resin fiber adsorbent or a magnet-containing powder ion that does not contain particulate titanium oxide by a circulating pump from a water tank in order to effectively use the biological filtration effect. It is good to circulate through the exchange resin adsorbent. In this system, the suction capacity of an air pump that sucks air containing airborne dust and odorous components is important to improve the cleaning effect.
[0032]
Since the powdered ion-exchange resin fiber adsorbent containing fine titanium oxide has an antibacterial effect by titanium oxide, it is difficult to use it especially as a bioreactor that expects a biological filtration and biological deodorization effect of water for rearing ornamental fish. It turned out that there was. In order to use as a filtration adsorbent for the purpose of nitrification and denitrification, avoid the coexistence of titanium oxide, powder ion-exchange resin fiber adsorbent containing fine titanium oxide and powder ion not containing fine titanium oxide Care must be taken to separate and use the exchange resin fibers.
[0033]
For example, the effect applied to the simple planter described in Japanese Patent Application No. 2001-277268 is great, and it is possible to clarify water unexpectedly by dividing and applying the mixed adsorbent in the water tank according to the present invention without mixing. In addition to the effect, it was recognized that the suspended dust and falling bacteria present in the air discharged from this system were reduced. In particular, the powdery ion-exchange resin fiber adsorbent containing ultrafine titanium oxide powder produced by the method according to claim 2 or 3 according to the present invention is placed on the surface layer of a flowerpot in which a houseplant is planted, whereby an odor removing effect is obtained. It is also expected as an interior with
[0034]
As described above, as an interior that combines houseplants and air purification, it can be provided to restaurants and hotels that place importance on the indoor environment, and as one of welfare equipment that takes into consideration the improvement and healing of the environment of a bedridden elderly person.
[0035]
The greatest advantage of the cleaning method using the system as shown in Fig. 1 is that it is inferior to a system that discharges a large amount of water, even though it is a circulating water system that uses a small amount of water in the process of dissolving suspended dust and odor components in water. The purpose is to exhibit the adsorption / decomposition performance of no floating dust and odorous components. This is a system that was made possible only by using a powder ion exchange resin of 1 to 50 μm. The effect was enhanced by applying a magnetic field, and as a result, the system could be simplified and downsized.
[0036]
When using the fine particle titanium oxide-containing powder ion-exchange resin adsorbent or the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent of the present invention in water, it is unknown how much titanium oxide is involved in the function of the bioreactor. However, it is presumed that a trace amount of organic nitrogen decomposition product probably generated by the oxidizing action of titanium oxide has an effect of suppressing algae generation.
[0037]
Hereinafter, examples using the adsorbents according to claims 1 to 3 of the present invention and experimental results related thereto will be described.
[0038]
Embodiment 1
For the peculiar odor generated in the room where the pet toilet is located or the waiting area of the dental clinic, the surrounding air is air-pumped into the aqueous suspension of the particulate ion-exchange resin containing fine titanium oxide produced according to claim 1 of the present invention. A method of introducing and purifying the fine particle ion-exchange resin fiber adsorbent containing the ultrafine titanium oxide, which is the adsorbent produced according to claim 2, in a container having an open top, and installing the adsorbent. In both methods, the odor of pets and the odor peculiar to clinics could be removed, and the air cleaning effect was significantly improved. In the latter case, an excellent deodorizing effect that was incomparable with the case of using the powder ion-exchange resin fiber adsorbent alone was confirmed.
[0039]
[Example 2]
A fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent containing fine titanium oxide produced by the method according to claim 2 of the present invention is put into a light-shielding filter tube installed in an aquarium breeding ornamental fish as a filtering material. As a result of observing the contamination of water and analyzing the water quality while circulating the water internally, the cleaning effect of the water was remarkably improved. Ornamental fish also died less, and the occurrence of algae was significantly reduced as compared with the case of using particulate titanium oxide alone. In particular, the transparency of the aquarium water is improved, the absorption in the visible region is reduced in the optical absorption analysis, and the absorption of ultraviolet, particularly in the range of 200 to 250 nm, is drastically reduced, and the action of reducing harmful nitrogen compounds represented by nitrogen compounds. It turned out that the effect was great. It was recognized that ultrafine titanium oxide having a particle size of 9 nm has a greater cleaning effect than that of granular titanium, and that there is a significant difference depending on the particle size.
[0040]
Embodiment 3
A blanket is placed in a breeding house (toilet training house) of a pet dog (10 Chihuahuas) bred indoors, and an experimental cloth with a clear pet odor is prepared. 30m ³ Was placed in the space, and various deodorizers prepared by the following eight methods were placed near the experimental cloth, and the deodorizing effect was examined by a sensory test by three panelists.
[0041]
As a first, 5 g of powdered cation exchange resin, 5 g of fine cellulose (trade name: Cerisshiu), and 5 g of bulk ceramic fiber (Isolite Kogyo) prepared by using a used cation exchange resin (Diaion PK216) by an air current pulverization method. To 5 g of polyester cut fiber (Kuraray), 1 g of ultrafine titanium oxide (made by Furukawa Kikai Metal, trade name: DN-1-0) is mixed with 5 liters of water, and the mixture is vigorously stirred for 2 to 5 minutes in a mixer. After standing for 10 minutes, water and fibers were separated by a centrifuge to prepare a fibrous adsorbent.
[0042]
Second, in place of the used cation exchange resin, 5 g of a powdered anion exchange resin prepared using a used anion exchange resin (Diaion PA308) was used. A titanium-containing fibrous adsorbent was prepared.
[0043]
As the third method, using 2.5 g of a powdered cation exchange resin (Diaion PK216) and 2.5 g of a powdered anion exchange resin (Diaion PA308) prepared from a used ion exchange resin, in the same manner as in the first step. A fibrous adsorbent containing titanium oxide fine particles was prepared.
[0044]
As a fourth example, a fibrous adsorbent containing fine particulate titanium oxide was prepared in the same manner as in the first example, using a new cation exchange resin (Diaion PK216).
[0045]
As a fifth example, a fibrous adsorbent containing fine titanium oxide particles was prepared in the same manner as in the second example using a new anion exchange resin (Diaion PA308).
[0046]
As a sixth example, a fibrous adsorbent containing fine particulate titanium oxide was prepared in the same manner as in the third example using a new cation exchange resin (Diaion PK216) and a new anion exchange resin (Diaion PA308).
[0047]
As No. 7, since the fibrous adsorbent cannot be prepared using the ultrafine titanium oxide alone, 1 g of the ultrafine titanium oxide was placed on a vessel and used as comparative data.
[0048]
As No. 8, an anion-positive powder ion-exchange resin fiber adsorbent having the same composition as that of No. 6 containing no fine-particle titanium oxide was prepared. Except for Nos. 3 and 6, there was a leak of fine titanium oxide particles, and the content of fine titanium oxide particles was reduced.
[0049]
The evaluation was performed by a five-step method in which the odor intensity before the experiment was 5, and the deodorized one was 1, and the average value obtained by three panelists was rounded off. Table 1 shows the experimental results of the deodorants prepared in the above eight ways.
[0050]
As is evident from the experimental results, excellent deodorizing effects were observed for Nos. 3 and 6 containing the powdered anion / cation exchange resin and the ultrafine titanium oxide particles. The powder ion exchange resin used showed little difference in performance between new and used ones.
[0051]
For reference, in the experiments 1 to 8, the same amount of powdered ion-exchange resin and particulate titanium oxide were suspended in 10 L of water, and the surrounding air was introduced using an air pump (300 ml / min). As a result, in each of the experimental groups, a deodorizing effect not less than excellent was recognized.
[0052]
Embodiment 4
As shown in FIG. 2, 10 liters of water 2 is put in a water tank 1. The air pump 4 that operates the air pump 4 to send air containing odors or floating dusts is made of the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent 3 made by the method of claim 2 or 3 of the present invention. It is inserted into the lower part of an air lift pipe 3 having a diameter of 2 cm and standing vertically through a water-permeable adsorbent container 8 to be accommodated. The air rises with water due to the airlift phenomenon and is discharged from the top. At this time, the lifted water is allowed to fall naturally along the umbrella-shaped falling plate 7 so that the contact between the air and the water is increased and the bad smell is easily dissolved in the water.
[0053]
If the water discharged from the top is allowed to flow through the surface of a creature that has been devised, such as a waterfall landscape, the interior can be enhanced and the range of applications can be expanded.
[0054]
If a pot is planted with houseplants instead of an umbrella-shaped waterfall plate at the top, water is automatically irrigated from the hole at the bottom of the pot, and the effect as an interior and the effect of healing can be obtained. The cleaning effect is further improved when the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent produced by the method of claim 2 or 3 of the present invention is placed on the surface layer around the stem of the houseplant.
[0055]
Further, instead of the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent of claim 2, the fine particle titanium oxide-containing powder ion-exchange resin adsorbent produced by the method of claim 1 of the present invention is introduced into water. good. In this case, a water-permeable adsorbent storage container is not required.
[0056]
Furthermore, when breeding ornamental fish in an aquarium, instead of the fine particle titanium oxide-containing powder ion-exchange resin fiber adsorbent, a magnet-containing powder ion-exchange resin adsorbent that does not contain titanium oxide is used to purify the microbial membrane. It is also good to use.
[0057]
When a magnetic field is applied to the microbial membrane, the cleaning action by the microbial membrane can be promoted by installing a permanent magnet in the flowing water path without including the magnet in the powder ion exchange resin adsorbent and applying the magnetic field.
[0058]
As a related experiment, 200 g of stool of a pet dog was placed in a 4.5 tatami room, and the air purifier shown in Fig. X was set up near the stool. A cleaning effect was observed. The details of the experiment and the results are described below.
[0059]
As a first example, 150 g of ultrafine titanium oxide particles (manufactured by Fuji Kikai Co., Ltd.) were placed on the bottom of a water tank, and an air cleaning effect was attempted when 500 ml of a powder ion exchange resin adsorbent was used. The smell and smell were measured by a sensory test by three panelists in the same manner as in Example 3, and the amount of suspended dust and the number of falling bacteria were measured by a standard method. Table 2 shows the results.
[0060]
As a second part, 250 ml was collected from 500 ml of the powdered ion exchange resin adsorbent used in the first part, and after swelling in water, ultrafine titanium oxide powder (trade name: DN-1-0, manufactured by Furukawa Kikai Metal) ) Using 0.5 g, the two were mixed and stirred to uniformly disperse and adsorb on the adsorbent. This ultrafine particulate titanium oxide-containing powder ion-exchange resin adsorbent is wrapped with a 100-mesh cloth, divided and placed above the powder ion-exchange resin adsorbent, and replaced with titanium oxide particles in the same manner as in 1. Then, an experiment was conducted in which a powder ion-exchange resin fiber adsorbent containing ultrafine titanium oxide powder was used in combination. Table 3 shows the results.
[0061]
As is clear from the experimental results, it was confirmed that the powder ion-exchange resin fiber adsorbent containing ultrafine titanium oxide had a large air cleaning effect and had a synergistic effect with the powder ion-exchange resin adsorbent.
[0062]
Embodiment 5
I will try the next two. As a material A, 10 g of powdered cation exchange resin (trade name: Diaion PK216), 10 g of fine anion exchange resin (trade name: Diaion PA308), and 10 g of fine fibrous cellulose (trade name: Celish) are mixed and stirred in water, Then, 2 g of ultrafine titanium oxide (made by Furukawa Kikai Metal Co., Ltd., trade name DN-1-0) is added thereto and agglomerated.
[0063]
As material B, 5 g of a polyester cut fiber (manufactured by Kuraray, 0.43 dN × 3 mm) and 5 g of a polypropylene cut fiber (manufactured by Daiwa spinning, 2 dN × 2 mm) were mixed and dispersed in water with 5 g of bulk ceramic fiber (manufactured by Isolite Industries). The adsorbent is made uniform and made of these cut fibers.
[0064]
The material A and the material B are mixed to prepare a fibrous filtration adsorbent in which the powdered ion exchange resin and the ultrafine titanium oxide are uniformly contained in the filtration body.
[0065]
A comparative experiment was conducted on the water-cleaning effect of the sample No. 1 in which 300 ml of the prepared adsorbent was charged into the apparatus described in Example 4 and the sample No. 2 in which a powder ion-exchange resin fiber filter from which titanium oxide had been removed was charged. . The stock solution was prepared by diluting pool water having a putrefactive odor three times with pure water to obtain aquarium water. An air pump was operated to flow tank water through the filter, and a change in water quality after 24 hours was measured. The aquarium was placed in direct sunlight. Table 4 shows the measurement results.
[0066]
Embodiment 6
Try the following two: As a first method, a column having a diameter of 10 cm and a height of 20 cm is packed with a fibrous adsorbent (JP-A-2000-31288) containing 5 g of fine-particle cation exchange resin and 5 g of fine-particle anion exchange resin as basic components.
[0067]
As a second part, from the top of the filtration adsorbent shown in the first part, water in which fine particulate titanium oxide is uniformly dispersed is poured (1 g is suspended in 5 liters of water). Is prepared.
[0068]
Water is ejected from the top of the filter packed in the column in a shower-like manner and falls after coming into contact with air. This stored water flows through the adsorbent inside the column by a circulation pump to create a closed system water purifying ring system having 10 liters of circulating water having a function of discharging from the bottom to the top. 1m ³ The apparatus of the present invention was placed in a test apparatus having a closed space of No. 3 and the concentrations of ammonia and acetic acid before and after use were measured using a commercially available detector tube. Table 5 shows the measurement results after 24 hours operation.
[0069]
[Table 1]

[0070]
[Table 2]

[0071]
[Table 3]

[0072]
[Table 4]

[0073]
[Table 5]

[0074]
【The invention's effect】
The present invention has the configuration as described above, and thus has the following effects.
[0075]
It has been recognized that the powder ion exchange resin prepared by subjecting the granular ion exchange resin to airflow pulverization has a remarkably improved physical adsorption function, and a method of using the solution as a filter material has been developed by the present inventors. However, removal of airborne dust and odorous components was an undeveloped field. According to the present invention, it is possible to enhance the synergistic effect by adding fine-particle titanium oxide to the powder ion-exchange resin, thereby significantly increasing the utility value of the fine-particle powder ion-exchange resin.
[0076]
The raw material of the powdered ion-exchange resin can be used as a material for the powdered ion-exchange resin used in the present invention by finely pulverizing used granular ion-exchange resin, which is industrial waste such as power plants, The fibers used in the ion-exchange resin fiber adsorbent can also be used from recycled fibers made by anti-hair companies, so this is an effective technique from the viewpoint of effective use of resources.
[0077]
Ion exchange resin is a material that can be prepared so as to be freely adaptable to a specific odor, and since the material of the present invention is an inexpensive and simple method and apparatus, it can be applied to a wide range of fields for cleaning air or water. There is expected.
[0078]
Although there are various technologies aimed at purifying air and water, the present invention is effective due to the synergistic effect of combining the long-life function such as air purification by photocatalytic titanium oxide and water purification by microbial membrane. Excellent cost / effectiveness vs. time.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram of an air or water cleaning process of the present invention.
FIG. 2 is an elevational sectional view of a cleaning device showing one embodiment of the present invention.
[Explanation of symbols]
1. Aquarium
2. water
3. Fine particle titanium oxide containing powder ion exchange resin fiber adsorbent or magnet containing fine particle titanium oxide containing ion exchange resin fiber adsorbent
4. Air pump
5. Air introduction pipe
6. Air lift pipe
7. Umbrella-shaped falling board
8. Adsorbent storage container that can flow
9. Arrow indicating airflow direction
Ten. Arrow indicating water flow direction

Claims (4)

Powder ion exchange containing fine particle titanium oxide for purifying air or water, characterized in that fine particle titanium oxide having a particle diameter of 100 nm or less and a powder ion exchange resin having a particle diameter of 1 to 50 μm are contact-mixed in water. Manufacturing method of resin adsorbent. Powder ion exchange containing fine particle titanium oxide for purifying air or water, characterized in that a fine particle titanium oxide, a powder ion exchange resin, and a cut fiber having a fiber thickness of 5 denier or less are contacted and reacted in water. Manufacturing method of resin fiber adsorbent. 3. A method for producing a particulate ion exchange resin adsorbent containing particulate titanium oxide, wherein the ion exchange resin used in claim 1 or 2 is a used recycled product. A method and an apparatus for purifying air or water using an adsorbent produced by the method according to claim 1.

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