JP6054044B2 - Radioactive water purification device and purification method - Google Patents

Radioactive water purification device and purification method Download PDF

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JP6054044B2
JP6054044B2 JP2012053621A JP2012053621A JP6054044B2 JP 6054044 B2 JP6054044 B2 JP 6054044B2 JP 2012053621 A JP2012053621 A JP 2012053621A JP 2012053621 A JP2012053621 A JP 2012053621A JP 6054044 B2 JP6054044 B2 JP 6054044B2
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contaminated water
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健夫 梅崎
健夫 梅崎
健吾 西田
健吾 西田
大悟 石井
大悟 石井
早川 典
典 早川
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Shinshu University NUC
Asahi Kasei Advance Corp
Toppan Inc
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Description

本発明は、放射性物質に汚染された水を浄化するための装置及び方法に関する。より詳しくは、本発明は、放射性セシウム等に汚染された水をゼオライト紙に接触させることによって、セシウムを除去して水を浄化するための装置及び方法に関する。   The present invention relates to an apparatus and method for purifying water contaminated with radioactive materials. More specifically, the present invention relates to an apparatus and method for removing cesium and purifying water by bringing water contaminated with radioactive cesium or the like into contact with zeolite paper.

イオン交換能を有するゼオライトの性質を用いて、例えば、特許文献1においては、不織布等の担体に担持されたゼオライトで汚濁水を処理する方法が開示されている。ゼオライトは、放射性セシウム及びストロンチウムを強く吸着することも知られている。   For example, Patent Document 1 discloses a method of treating polluted water with zeolite supported on a carrier such as a nonwoven fabric using the properties of zeolite having ion exchange ability. Zeolite is also known to strongly adsorb radioactive cesium and strontium.

さらに、特許文献2には、原子力発電所の放射性排水等の放射性物質を含有する排水を、イオン交換基を有する合成繊維とセルロースを主成分としたイオン交換ろ紙を用いてろ過し、その際捕集された放射性物質と共にイオン交換ろ紙を焼却する方法が記載されている。   Furthermore, Patent Document 2 discloses that wastewater containing radioactive substances such as radioactive wastewater from nuclear power plants is filtered using ion-exchange filter paper mainly composed of synthetic fibers having ion-exchange groups and cellulose. A method for incinerating ion exchange filter paper with collected radioactive material is described.

特許文献3には、ゼオライト等の無機消臭剤を漉き込んだ和紙を中間層として、両側に和紙を積層したサンドイッチ構造の和紙が開示されている。   Patent document 3 discloses a Japanese paper having a sandwich structure in which Japanese paper containing an inorganic deodorant such as zeolite is used as an intermediate layer and Japanese paper is laminated on both sides.

特許文献4には、ゼオライト等の脱臭剤及び有機繊維を強固に接着させた脱臭用紙が開示されている。   Patent Document 4 discloses a deodorizing paper in which a deodorizing agent such as zeolite and organic fibers are firmly bonded.

以上の文献では、ゼオライトによる浄水方法、放射性排水の浄化方法及び吸着材としてのゼオライトの使用方法が記載されている一方で、放射性セシウム等を含む大量の汚染水を、効率的かつ容易に浄化する装置及び方法は未だ提供されていない。また、汚染水から除去した放射性物質を、浄化装置から容易に分離する方法を開示していない。   In the above documents, water purification method using zeolite, purification method of radioactive waste water, and use method of zeolite as an adsorbent are described, while a large amount of contaminated water containing radioactive cesium and the like is efficiently and easily purified. Apparatus and methods have not yet been provided. Further, there is no disclosure of a method for easily separating the radioactive substance removed from the contaminated water from the purification device.

特開平11−262790号JP-A-11-262790 特開昭61−13195号JP 61-13195 A 特開2004−52152号JP 2004-52152 A 特開2004−218185号JP 2004-218185 A

上記の従来技術の状況に鑑み、本発明が解決しようとする課題は、放射性セシウム等を含む大量の汚染水を、効率的かつ容易に浄化する装置及び方法を提供することである。   In view of the above-described state of the prior art, the problem to be solved by the present invention is to provide an apparatus and method for efficiently and easily purifying a large amount of contaminated water containing radioactive cesium and the like.

本発明者らは、上記課題を解決すべく、鋭意検討した結果、以下の構成を有することにより、上記課題を解決しうることを見出し、本発明を完成するに至った。   As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that the above-described problems can be solved by having the following configuration, and have completed the present invention.

[1]ゼオライト紙及び該ゼオライト紙を支持するための支持体を含む浄化部材ユニット、放射性物質を含む汚染水入口、並びに該汚染水を該浄化部材ユニットに接触させた水を取り出すための水出口を有する浄化装置であって、該汚染水は、該浄化部材ユニットの該ゼオライト紙の面と平行に流れることによって、該ゼオライト紙と接触する、浄化装置。 [1] A purification member unit including a zeolite paper and a support for supporting the zeolite paper, a contaminated water inlet containing a radioactive substance, and a water outlet for taking out water in which the contaminated water is brought into contact with the purification member unit The purifying apparatus, wherein the contaminated water is in contact with the zeolite paper by flowing parallel to the surface of the zeolite paper of the purification member unit.

[2]前記ゼオライト紙を支持するための前記支持体が、樹脂製若しくは金属製の網、ネット、メッシュ、三次元網状体、又は織布若しくは不織布である、[1]に記載の浄化装置。 [2] The purification device according to [1], wherein the support for supporting the zeolite paper is a resin or metal net, a net, a mesh, a three-dimensional net, or a woven or non-woven fabric.

[3]前記ゼオライト紙に不織布が積層されており、かつ前記支持体が樹脂製メッシュである、[1]に記載の浄化装置。 [3] The purification device according to [1], wherein a nonwoven fabric is laminated on the zeolite paper, and the support is a resin mesh.

[4]ゼオライト紙及び該ゼオライト紙を支持するための支持体を含む浄化部材ユニットに、放射性汚染水を該浄化部材ユニットの該ゼオライト紙の面と平行に流すことによって、該放射性汚染水を浄化する、放射性汚染水の浄化方法。 [4] Purify the radioactively contaminated water by flowing the radioactively contaminated water in parallel to the surface of the zeolite paper of the purifying member unit through the purifying member unit including the zeolite paper and the support for supporting the zeolite paper. A method for purifying radioactive polluted water.

[5]前記ゼオライト紙を支持するための前記支持体が、樹脂製若しくは金属製の網、ネット、メッシュ、又は織布若しくは不織布である、[4]に記載の浄化方法。 [5] The purification method according to [4], wherein the support for supporting the zeolite paper is a resin or metal net, net, mesh, or woven or non-woven fabric.

[6]前記ゼオライト紙に不織布が積層されており、かつ前記支持体が樹脂製メッシュである、[4]に記載の浄化方法。 [6] The purification method according to [4], wherein a nonwoven fabric is laminated on the zeolite paper, and the support is a resin mesh.

本発明の浄化装置は、汚染水を高い流量で浄化することができるため、放射性セシウム等を含む大量の汚染水を処理することができ、又は装置を小型化することができる。さらに、本発明の浄化方法を用いると、容易に汚染水を浄化することができる。さらに、除去した放射性セシウム等を容易に浄化装置から分離することができる。また、本発明の浄化装置及び浄化方法によって、放射性物質以外の環境汚染物質、例えば窒素化合物やリン化合物、重金属や塩類等の除去も同時に行うことができる。   Since the purification apparatus of the present invention can purify contaminated water at a high flow rate, a large amount of contaminated water containing radioactive cesium or the like can be treated, or the apparatus can be miniaturized. Furthermore, when the purification method of the present invention is used, contaminated water can be easily purified. Further, the removed radioactive cesium and the like can be easily separated from the purification device. Moreover, the purification apparatus and the purification method of the present invention can simultaneously remove environmental pollutants other than radioactive substances, such as nitrogen compounds, phosphorus compounds, heavy metals and salts.

本発明の一実施態様の浄化装置の概略図である。この態様においては、浄化装置の下部から汚染水を流入させ、上下方向に並んでいる浄化部材ユニットのゼオライト紙に汚染水を接触させて浄化し、浄化装置の上部から浄化した水を取り出す。It is the schematic of the purification apparatus of one embodiment of this invention. In this aspect, contaminated water is introduced from the lower part of the purification device, the contaminated water is brought into contact with the zeolite paper of the purification member units arranged in the vertical direction to purify, and the purified water is taken out from the upper part of the purification device. 本発明の他の実施態様の浄化装置の概略図である。この態様においては、ゼオライト紙及びその支持体をロール状にした浄化部材ユニットのロールの軸方向に汚染水を流通させて、ゼオライト紙と接触させて汚染水を浄化している。It is the schematic of the purification apparatus of the other embodiment of this invention. In this embodiment, the contaminated water is circulated in the axial direction of the roll of the purification member unit in which the zeolite paper and its support are rolled, and the contaminated water is purified by contacting with the zeolite paper. 本発明の浄化方法の一実施態様の概略図である。この態様においては、ゼオライト紙及びその支持体をロール状にした浄化部材ユニットを、汚染水が流れる用水路に設置して、汚染水を浄化部材ユニットに流通させることによって、汚染水を浄化している。It is the schematic of one embodiment of the purification method of this invention. In this embodiment, the contaminated water is purified by installing the purification member unit in the form of a roll of zeolite paper and its support in the water channel through which the contaminated water flows and circulating the contaminated water to the purification member unit. . 本発明で用いる浄化部材ユニットの概略図である。両側を不織布で積層したゼオライト紙と支持体とで、板状の浄化部材ユニットを構成している。It is the schematic of the purification | cleaning member unit used by this invention. A plate-shaped purification member unit is composed of zeolite paper laminated on both sides with a nonwoven fabric and a support. 本発明で用いる浄化部材ユニットの概略図である。ゼオライト紙と支持体とで、ロール状の浄化部材ユニットを構成している。It is the schematic of the purification | cleaning member unit used by this invention. The zeolite paper and the support constitute a roll-shaped purification member unit. 本発明の装置及び方法における、汚染水の流路と浄化部材ユニットの配置との関係の他の一つの態様である。It is another one aspect | mode of the relationship between the flow path of contaminated water and arrangement | positioning of the purification | cleaning member unit in the apparatus and method of this invention.

以下、本発明を詳細に説明する。
本発明は、ゼオライト紙及び上記ゼオライト紙を支持するための支持体を含む浄化部材ユニット、放射性汚染水入口、並びに放射性汚染水を上記浄化部材ユニットに接触させた水を取り出すための水出口を有する浄化装置であって、上記放射性汚染水は、上記浄化部材ユニットの上記ゼオライト紙の面に平行に流れることによって、上記浄化部材ユニットと接触する、浄化装置である。
Hereinafter, the present invention will be described in detail.
The present invention has a purification member unit including a zeolite paper and a support for supporting the zeolite paper, a radioactively contaminated water inlet, and a water outlet for taking out water in which the radioactively contaminated water is brought into contact with the purification member unit. In the purification device, the radioactively contaminated water is in contact with the purification member unit by flowing parallel to the surface of the zeolite paper of the purification member unit.

本発明に用いるゼオライト紙は、ゼオライト粉と繊維で構成された紙状のシートである。ゼオライトは、陽イオンを吸着することで知られているが、特にイオン化傾向の高いセシウムやストロンチウムの吸着には、きわめて有効である。したがって、本発明で用いるゼオライト紙は、放射性セシウム及び/又は放射性ストロンチウムを含む汚染水と接触することによって、その汚染水を浄化することができる。また、放射性物質以外の環境汚染物質、例えば窒素化合物やリン化合物、重金属や塩類等の除去も同時に行うことができる。ゼオライト紙中のゼオライト量はできるだけ多い方が良く、ゼオライト紙中の重量比で30%以上、より好ましくは50%、さらに好ましくは70%以上、最も好ましくは80%以上含むことが好ましい。汚染物質を吸着する他の吸着剤を、ゼオライト紙が保持することもできる。また、使用するゼオライトは、クリノプチロライト系、モルデナイト系のどちらでも良く、10μmから1000μmの粒径の間で選択することもできる。繊維については、グランドウッドパルプ、クラフトパルプ等の木材パルプ、また木材以外のパルプとしては木綿、麻等の天然パルプ等をもちいることができる。さらに、上記繊維を主体とし補助繊維として、レーヨン、ポリエステル、ポリプロピレン等の耐水性のある有機高分子繊維や、ガラス繊維、ロックウール等の耐熱性のある無機繊維を用いることが出来る。ゼオライト紙は、当業者に知られた方法、例えば特許文献5に記載の方法によって作製することができる。ゼオライト紙の面密度は、水が流れることを考慮して、50g/mから1000g/mの間で選択することが望ましい。ゼオライト、繊維及びゼオライト紙の他の性質は、汚染水の流量、汚染水を浄化する程度等によって適切に選択される。 The zeolite paper used in the present invention is a paper-like sheet composed of zeolite powder and fibers. Zeolite is known to adsorb cations, but is particularly effective for adsorption of cesium and strontium, which have a high ionization tendency. Therefore, the zeolitic paper used in the present invention can purify the contaminated water by contacting with the contaminated water containing radioactive cesium and / or radioactive strontium. Moreover, environmental pollutants other than radioactive substances such as nitrogen compounds, phosphorus compounds, heavy metals and salts can be removed at the same time. The amount of zeolite in the zeolite paper should be as large as possible, and is preferably 30% or more, more preferably 50%, still more preferably 70% or more, and most preferably 80% or more by weight ratio in the zeolite paper. Zeolite paper can also hold other adsorbents that adsorb contaminants. The zeolite to be used may be either a clinoptilolite type or a mordenite type, and may be selected from a particle size of 10 μm to 1000 μm. As for the fibers, wood pulp such as ground wood pulp and kraft pulp, and natural pulp such as cotton and hemp can be used as pulp other than wood. Furthermore, water-resistant organic polymer fibers such as rayon, polyester and polypropylene, and heat-resistant inorganic fibers such as glass fibers and rock wool can be used as the auxiliary fibers mainly composed of the above fibers. Zeolite paper can be produced by methods known to those skilled in the art, for example, the method described in Patent Document 5. The areal density of the zeolite paper, taking into account that the water flows, it is desirable to select at between 50 g / m 2 of 1000 g / m 2. Other properties of zeolite, fiber and zeolite paper are appropriately selected depending on the flow rate of contaminated water, the degree of purification of contaminated water, and the like.

好ましくは、ゼオライト紙は、ゼオライトの剥離を防止すると共に強度を向上させるために、他の材質と、例えば織布又は不織布と、積層体を構成する。この場合、ゼオライト紙と織布又は不織布との積層体は、ゼオライト紙の両面を織布又は不織布で挟み、それらの面の何点かを接着剤等を用いて接着又は熱融着することで形成することができる。積層体の材質及び厚みは、汚染水の流量、汚染水を浄化する程度等によって適切に選択される。   Preferably, the zeolite paper constitutes a laminate with another material, for example, a woven fabric or a non-woven fabric, in order to prevent peeling of the zeolite and improve the strength. In this case, the laminate of zeolite paper and woven or non-woven fabric is obtained by sandwiching both sides of the zeolite paper with woven or non-woven fabric, and bonding or heat-sealing some points of these surfaces using an adhesive or the like. Can be formed. The material and thickness of the laminate are appropriately selected depending on the flow rate of contaminated water, the degree of purification of contaminated water, and the like.

本発明で用いるゼオライト紙を支持するための支持体は、上記のゼオライト紙を支持できるものであればよい。この支持体としては、樹脂製若しくは金属製の網、ネット、メッシュ、三次元網状体等が挙げられる。支持体は、下記の浄化部材ユニットをロール状に構成する場合には、可撓性を有することができる。支持体の材質及び厚みは、汚染水の流量、汚染水を浄化する程度等によって適切に選択される。また、前記ゼオライト紙と積層体を構成する織布又は不織布が支持体を兼ねてもよい。   The support for supporting the zeolite paper used in the present invention may be any support that can support the above-mentioned zeolite paper. Examples of the support include resin or metal nets, nets, meshes, and three-dimensional nets. A support body can have flexibility, when the following purification member unit is comprised in roll shape. The material and thickness of the support are appropriately selected depending on the flow rate of contaminated water, the degree of purification of contaminated water, and the like. Moreover, the woven fabric or the nonwoven fabric which comprises the said zeolite paper and a laminated body may serve as a support body.

本発明で用いる浄化部材ユニットは、ゼオライト紙及びゼオライト紙を支持するための支持体を含む。好ましい1つの実施態様としては、浄化部材ユニットは、ゼオライト紙と不織布の積層体を支持体で挟み、これを複数重ねて構成される。他の1つの態様として、本発明で用いる浄化部材ユニットは、積層体と支持体とをロール状に構成したものが挙げられる。いずれの構成においても、浄化部材ユニットは、汚染水がゼオライト紙と好適に接触し、かつ高い流量の汚染水を流通させることができるように構成される。   The purification member unit used in the present invention includes zeolite paper and a support for supporting the zeolite paper. As one preferable embodiment, the purification member unit is configured by sandwiching a laminate of zeolite paper and nonwoven fabric with a support, and stacking a plurality of these. As another aspect, the purification member unit used in the present invention includes a laminate and a support configured in a roll shape. In any configuration, the purification member unit is configured such that the contaminated water is preferably in contact with the zeolite paper and the contaminated water having a high flow rate can be circulated.

本発明の浄化装置は、上記浄化部材ユニットの他に、放射性汚染水の入口、並びに放射性汚染水を上記浄化部材ユニットに接触させた水を取り出すための水出口を有する。汚染水は、浄化部材ユニットの内部を流通し、ゼオライト紙と接触することによって、汚染物質が除去される。ここで、汚染水の流れと、ゼオライト紙の面とは平行となる。すなわち、ゼオライト紙は、汚染水を主にろ過するのではなく、汚染水と接触することによって、そこに含まれるゼオライトが汚染物質を吸着除去する。このようにすることで、汚染水は、比較的低い圧力水頭で、本発明の浄化装置を流れることができ、処理速度の向上及び浄化部材ユニットの長寿命化を図ることができる。   In addition to the purification member unit, the purification device of the present invention has an inlet of radioactive contaminated water and a water outlet for taking out water in which radioactive contaminated water is brought into contact with the purification member unit. Contaminated water flows through the inside of the purification member unit and comes into contact with the zeolite paper to remove the contaminant. Here, the flow of contaminated water and the surface of the zeolite paper are parallel. That is, the zeolite paper does not mainly filter the contaminated water, but comes into contact with the contaminated water so that the zeolite contained therein adsorbs and removes the contaminant. By doing in this way, contaminated water can flow through the purification apparatus of the present invention with a relatively low pressure head, thereby improving the processing speed and extending the life of the purification member unit.

本発明の汚染水の浄化方法は、上記浄化部材ユニットのゼオライト紙の面と平行に汚染水を流すことによって、汚染物質をゼオライト紙のゼオライトに吸着させて、汚染水を浄化する。この方法を、水道水の導管、農業用水路、河川、湖沼等で用いることによって、容易に汚染水を浄化することができる。また、本発明の汚染水の浄化方法は、例えば放射性汚染土の洗浄装置から発生した廃水を浄化処理する場合においても好ましく用いられる。   In the method for purifying contaminated water of the present invention, the contaminated water is caused to adsorb to the zeolite of the zeolite paper by flowing the contaminated water parallel to the surface of the zeolite paper of the purification member unit, thereby purifying the contaminated water. By using this method in tap water conduits, agricultural waterways, rivers, lakes and the like, contaminated water can be easily purified. Further, the method for purifying contaminated water of the present invention is preferably used even when, for example, wastewater generated from a cleaning device for radioactively contaminated soil is purified.

本発明の浄化装置及び浄化方法によって用いられた浄化部材ユニットは、汚染物質を含むゼオライト紙を交換することによって、容易に汚染物質を浄化部材ユニットから分離することができる。ゼオライト紙と不織布の積層体を樹脂製メッシュで支持する浄化部材ユニットを用いる実施態様においては、ゼオライト紙と不織布の積層体を交換することもできる。   The purification member unit used by the purification device and the purification method of the present invention can easily separate the contaminant from the purification member unit by exchanging the zeolite paper containing the contaminant. In an embodiment using a purification member unit that supports a laminate of zeolite paper and nonwoven fabric with a resin mesh, the laminate of zeolite paper and nonwoven fabric can be exchanged.

図1は、本発明の一実施態様の浄化装置1の概略図である。この態様においては、浄化装置の下部入口20から汚染水を流入させ、上下方向に並んでいる浄化部材ユニット10のゼオライト紙に汚染水を接触させて浄化し、浄化装置の上部出口21から浄化した水を取り出す。浄化部材ユニットは、支持体とゼオライト紙と不織布の積層体を複数重ねた構成を有しており、浄化装置1内で敷網30及び補強材40によって固定されている。   FIG. 1 is a schematic view of a purification device 1 according to an embodiment of the present invention. In this embodiment, contaminated water is introduced from the lower inlet 20 of the purification device, purified by bringing the contaminated water into contact with the zeolite paper of the purification member units 10 arranged in the vertical direction, and purified from the upper outlet 21 of the purification device. Remove water. The purification member unit has a configuration in which a plurality of laminates of a support, zeolite paper, and nonwoven fabric are stacked, and is fixed in the purification device 1 by a net 30 and a reinforcing material 40.

図2は、本発明の他の一実施態様の浄化装置1の概略図である。この態様においては、ゼオライト紙及びその支持体をロール状にした浄化部材ユニット10のロールの軸方向に汚染水を流通させて、ゼオライト紙と接触させて汚染水を浄化している。ここでは、汚染水を上部の入口(図示せず)から投入し、下部の出口21から浄化した水を取り出している。   FIG. 2 is a schematic view of the purification device 1 according to another embodiment of the present invention. In this embodiment, contaminated water is circulated in the axial direction of the roll of the purification member unit 10 in which the zeolite paper and its support are rolled, and the contaminated water is purified by contacting with the zeolite paper. Here, contaminated water is introduced from an upper inlet (not shown), and purified water is taken out from a lower outlet 21.

図3は、本発明の浄化方法の一実施態様の概略図である。この態様においては、ゼオライト紙及びその支持体をロール状にした浄化部材ユニット10を、汚染水が流れる用水路に設置して、汚染水を浄化部材ユニット10に流通させることによって、汚染水を浄化している。この態様は、浄化部材ユニットを用水路に設置するだけで良いために、非常に簡単に汚染水を浄化することができる。   FIG. 3 is a schematic view of an embodiment of the purification method of the present invention. In this embodiment, the purification member unit 10 having a roll of zeolite paper and its support is installed in a water channel through which the contaminated water flows, and the contaminated water is circulated through the purification member unit 10 to purify the contaminated water. ing. In this aspect, since it is only necessary to install the purification member unit in the water channel, the contaminated water can be purified very easily.

図4は、本発明で用いる浄化部材ユニット10の概略図である。ゼオライト紙11を不織布12で両側から挟んだ積層体と、支持体13とを複数重ねて、板状の浄化部材ユニット10を構成している。   FIG. 4 is a schematic view of the purification member unit 10 used in the present invention. A plate-shaped purification member unit 10 is configured by stacking a plurality of laminated bodies in which zeolite paper 11 is sandwiched between nonwoven fabrics 12 from both sides and a support body 13.

図5は、本発明で用いる浄化部材ユニット10の概略図である。ゼオライト紙11及び不織布の積層体と、支持体13とで、ロール状の浄化部材ユニット10を構成している。この場合は、積層体と支持体13を複数重ねた後にロール状にすることもできる。   FIG. 5 is a schematic view of the purification member unit 10 used in the present invention. The laminated body of the zeolite paper 11 and the nonwoven fabric and the support 13 constitute a roll-shaped purification member unit 10. In this case, it can also be made into a roll after laminating the laminated body and the support 13 in a plurality.

図6は、本発明の装置及び方法における、汚染水の流れと浄化部材ユニット10との配置関係の他の一つの態様である。汚染水の全体としての流れと、浄化部材ユニット10のゼオライト紙とは、垂直の関係にあるが、実際には汚染水は、浄化部材ユニット10が容器に支持されていない側を通って進み、浄化部材ユニット10のゼオライト紙の面と平行に流れる。例えば、ゼオライト紙と不織布の積層体の多数の位置に細孔を形成して、その細孔に汚染水を通す場合も、汚染水は、ゼオライト紙の面と平行に流れてから細孔を通過するため、これも本発明の1つの実施態様となる。   FIG. 6 shows another embodiment of the positional relationship between the contaminated water flow and the purification member unit 10 in the apparatus and method of the present invention. The flow of the contaminated water as a whole and the zeolite paper of the purification member unit 10 are in a vertical relationship, but in actuality, the contamination water travels through the side where the purification member unit 10 is not supported by the container, It flows parallel to the surface of the zeolite paper of the purification member unit 10. For example, even when pores are formed at many positions of a laminate of zeolite paper and nonwoven fabric and contaminated water is passed through the pores, the contaminated water flows parallel to the surface of the zeolite paper and then passes through the pores. Therefore, this is also one embodiment of the present invention.

本発明の浄化装置は、汚染水を高い流量で浄化することができるため、放射性物質を含む汚染水の浄化に好適に利用可能である。さらに、本発明の浄化方法を用いると、容易に汚染水を浄化することができるため、放射性物質を含む汚染水の浄化に好適に利用可能である。   Since the purification apparatus of the present invention can purify contaminated water at a high flow rate, it can be suitably used for purification of contaminated water containing radioactive substances. Furthermore, since the contaminated water can be easily purified by using the purification method of the present invention, it can be suitably used for the purification of contaminated water containing radioactive substances.

1 浄化装置
10 浄化部材ユニット
11 ゼオライト紙
12 不織布
13 支持体
20 汚染水入口
21 浄化水出口
30 敷網
40 補強材
DESCRIPTION OF SYMBOLS 1 Purification apparatus 10 Purification member unit 11 Zeolite paper 12 Nonwoven fabric 13 Support body 20 Contaminated water inlet 21 Purified water outlet 30 Laying net 40 Reinforcing material

Claims (8)

ゼオライト紙及び該ゼオライト紙を支持するための支持体を含む浄化部材ユニット、放射性物質を含む汚染水入口、並びに該汚染水を該浄化部材ユニットに接触させた水を取り出すための水出口を有する浄化装置であって、
前記ゼオライト紙に不織布が積層されており、
前記ゼオライト紙と不織布との積層体に細孔が形成されており、そして、
該汚染水は、該浄化部材ユニットの該ゼオライト紙の面と平行に流れてから前記細孔を通過することによって該ゼオライト紙と接触して汚染物質が除去される、浄化装置。
Purification comprising a zeolite paper and a purification member unit including a support for supporting the zeolite paper, a contaminated water inlet containing a radioactive substance, and a water outlet for taking out the water that has contacted the contaminated water with the purification member unit A device,
A nonwoven fabric is laminated on the zeolite paper,
Pore is formed in the laminate of the zeolite paper and the nonwoven fabric, and
The contaminated water, contaminants are removed in contact with the zeolite by the paper Rukoto to pass through the pores from flowing parallel to the zeolite paper surface of the purifying member unit, purifier.
前記ゼオライト紙を支持するための前記支持体が、樹脂製若しくは金属製の網、ネット、メッシュ、三次元網状体、又は織布若しくは不織布である、請求項1に記載の浄化装置。   The purification apparatus according to claim 1, wherein the support for supporting the zeolite paper is a resin or metal net, a net, a mesh, a three-dimensional net, or a woven or non-woven fabric. 記支持体が樹脂製メッシュである、請求項1又は2に記載の浄化装置。 Before Symbol support is a resin mesh, purifying apparatus according to claim 1 or 2. ゼオライト紙及び該ゼオライト紙を支持するための支持体を含み、
前記ゼオライト紙に不織布が積層されており、
前記ゼオライト紙と不織布との積層体に細孔が形成されている浄化部材ユニットに、放射性汚染水を該浄化部材ユニットの該ゼオライト紙の面と平行に流してから前記細孔を通過させることによって該ゼオライト紙と接触させて汚染物質を除去して該放射性汚染水を浄化する、放射性汚染水の浄化方法。
Look including a support for supporting the zeolite paper and said zeolite paper,
A nonwoven fabric is laminated on the zeolite paper,
The cleaning member unit that pores are formed in the laminate of the zeolite paper and nonwoven, passing through the fine pores after the flow parallel to the zeolite paper surface of the purifying member unit radioactive contaminated water The method for purifying radioactive polluted water, wherein the radioactive polluted water is purified by removing the pollutant by contacting with the zeolite paper.
前記ゼオライト紙を支持するための前記支持体が、樹脂製若しくは金属製の網、ネット、メッシュ、又は織布若しくは不織布である請求項に記載の浄化方法。 The purification method according to claim 4 , wherein the support for supporting the zeolite paper is a net made of resin or metal, a net, a mesh, or a woven or non-woven fabric. 記支持体が樹脂製メッシュである、請求項又はに記載の浄化方法。 Before SL is a support resin mesh, purification method according to claim 4 or 5. 前記浄化方法が、水道水の導管、農業用水路、河川、又は湖沼で用いられる、請求項のいずれか一項に記載の浄化方法。 The purification method is, tap water conduit, irrigation ditches, Ru used rivers, or lakes, purifying method according to any one of claims 4-6. 前記浄化方法が、放射性汚染土の洗浄装置から発生した廃水の浄化処理に用いられる、請求項のいずれか一項に記載の浄化方法。 The purification method according to any one of claims 4 to 6 , wherein the purification method is used for purification treatment of wastewater generated from a cleaning device for radioactively contaminated soil.
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