JP4357846B2 - Drainage treatment apparatus and drainage treatment method using fibrous activated carbon - Google Patents

Description

表１に示すように、このカラムは高い過酸化水素分解能力を示した。この結果から、金属が含有された活性炭繊維を本装置に用いることにより、高い処理速度でかつ大量の処理が可能であることがわかった。
【００４８】
【発明の効果】
本発明によれば、効率的な排液処理が可能な装置および処理方法を提供することができる。
【図面の簡単な説明】
【図１】本発明の主たる特徴を示す図である。
【図２】触媒モジュールの一例を示す一部破断図（ａ）とその構成の具体例を示す図（ｂ）である。
【図３】触媒モジュールの他の例（ａ）〜（ｃ）を示す図である。
【図４】シート状活性炭を用いた触媒モジュールにおける凸状部あるいは隔壁状体の例（ａ）〜（ｃ）を示す図である。
【図５】触媒モジュールをコアを用いて構成する場合を示す図である。
【図６】メッシュ状体をシート状活性炭の袋状体に内包させることを示す図である。
【図７】本発明における処理ユニットを示す図である。
【図８】処理ユニットにおける底板と触媒モジュールとの固定状態の一例を示す図である。
【図９】処理槽に対して触媒モジュールを容易に脱着可能とする触媒ユニットの一例を示す図である。
【図１０】処理装置の全体の一例を示す図である。
【符号の説明】
２ 触媒モジュール
４ 排液導入部
６ 開口
８ コア
１０ 触媒部
１０ａ 凸状部
１０ｂ 隔壁状体
１２ 繊維状活性炭層（触媒層）
１４ シート状活性炭
１６ 分断部
１８ シート状活性炭の袋状体
２０ 通液性の構造体（メッシュ状体）
２２ 遮断部材
３０ 処理ユニット
４０ 処理槽
４２ ケーシング
４４ 壁部
４６ 底部
４８ 天板
５０ 第１の保持手段
５２ ベース部
５４ 内環部
５６ 内挿部
５８ 孔部
６０ 第２の保持手段
６２ ボルト部
６４ 貫通孔
６６ ヘッド部
７０ 触媒ユニット
７２ 支持手段
８０ 導出部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a processing technique for decomposing components in various effluents such as hydrogen peroxide-containing wastewater using fibrous activated carbon, and in particular, excellent treatment efficiency using fibrous activated carbon formed in a sheet shape. It relates to the technology that can be obtained.
[0002]
[Prior art]
Conventionally, methods for treating various wastewaters such as hydrogen peroxide-containing wastewater discharged from the manufacturing process of semiconductors and liquid crystals include enzymatic decomposition methods, chemical neutralization methods, and catalytic decomposition methods. Enzymatic decomposition generally requires a reaction time, and thus requires a large reaction tank. Moreover, since the reaction tank requires a stirring means, the reaction apparatus itself becomes a large-scale apparatus according to the amount of water.
In addition, the chemical neutralization method has problems such as the use of an acid or alkali for neutralization and the generation of a neutralized product, although the disadvantages such as enzymatic degradation are small. In wastewater treatment, it should be avoided to discharge these chemicals and products out of the treatment system as much as possible. Therefore, additional processing equipment is required.
[0003]
In the method using a catalyst, there is no problem of chemicals and products, and the reaction is quick, so that it can be said that it is suitable for continuous wastewater treatment. However, if the catalyst is granular, the specific surface area is small, so it is difficult to improve the processing efficiency, and the apparatus tends to be large. In addition, when gas is generated at the time of decomposition due to granularity, a flow path configuration directed upward for gas discharge must be taken, in which case the catalyst expands upward and is physically Wears easily and generates fine powder. Furthermore, since the downstream side is contaminated with powder, a separate filtering means is required.
On the other hand, in recent years, fibrous activated carbon and the like have been supplied, and such fibrous activated carbon is formed into a sheet shape and used as a cartridge type catalyst in a spiral shape (Patent Document 1). By using such a fibrous body, there is an effect that generation of fine powder can be suppressed.
[0004]
[Patent Document 1]
JP 7-144189 A
[0005]
[Problems to be solved by the invention]
However, when a catalyst layer formed by winding activated carbon formed in a sheet shape in a spiral shape is used, generation of fine powder can be suppressed, but there is a problem that high-speed treatment is difficult because of high liquid passage resistance. In addition, in a catalyst layer in which fibrous activated carbon is entangled, it is often difficult to cause the liquid to be treated to uniformly contact and react, and the deterioration of the catalyst is likely to proceed only on the liquid introduction side. On the introduction side, clogging was easily caused by fine particles in the liquid to be treated. Further, when the reaction proceeds in a part of the catalyst layer, when gas is generated by the reaction in the catalyst layer, the gas is not smoothly discharged, and as a result, efficient treatment cannot be ensured.
Accordingly, an object of the present invention is to provide an apparatus and a processing method capable of efficient drainage treatment by providing a treatment unit including a catalyst module using fibrous activated carbon.
[0006]
[Means for Solving the Problems]
  The inventors of the present invention have studied a treatment unit configuration including a catalyst cartridge using fibrous activated carbon, particularly sheet-like activated carbon, and have been able to construct a unit configuration capable of making the field where the catalyst reacts uniform. Specifically, the inventors of the present invention form a uniform catalytic reaction field in the cylindrical catalyst module by creating a drainage diffusion state from the inside of the cylindrical body to the outside and / or upward. As a result, the present invention was completed.
  That is, according to the present invention, the following means are provided.
(1) A drainage treatment apparatus,
  A cylindrical catalyst module, and a treatment tank containing one or more of the catalyst modules,
  The catalyst module includes at least a drainage introduction portion that is a drainage inflow passage that opens downward and faces upward, and a catalyst portion provided around the drainage introduction portion.And haveThe drainage liquid in the drainage introduction part passes through the catalyst part and is discharged out of the module.,in frontCommunicated with the drainage supply side outside the processing tank through the opening, and is provided so that drainage from the drainage supply side can be supplied to the catalyst unit,
  The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
  The sheet-like activated carbon is formed in a bag-like body that opens downward,
  The said processing tank is an apparatus which stores the processing liquid discharged | emitted from the said catalyst module, and flows out the said processing liquid outside in a predetermined liquid level.
(2) A drainage treatment apparatus,
  A cylindrical catalyst module, and a treatment tank containing one or more of the catalyst modules,
  The catalyst module includes at least a drainage introduction portion that is a drainage inflow passage that opens downward and faces upward, and a catalyst portion provided around the drainage introduction portion.And haveThe drainage liquid in the drainage introduction part passes through the catalyst part and is discharged out of the module.,in frontCommunicated with the drainage supply side outside the processing tank through the opening, and is provided so that drainage from the drainage supply side can be supplied to the catalyst unit,
  The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
  The drainage introduction part is constituted by a core made of a cylindrical body having a wall part through which liquid can pass.
  The wall portion of the core made of the tubular body has at least one elongated slit-shaped dividing portion extending in the height direction,
  The sheet-like activated carbon is inserted into the dividing portion and wound around the outer periphery of the core,
  The said processing tank is an apparatus which stores the processing liquid discharged | emitted from the said catalyst module, and flows out the said processing liquid outside in a predetermined liquid level.
(3) The said catalyst part is an apparatus as described in (1) or (2) which has the site | part which protrudes in the waste-liquid introduction part side.
(4) The device according to (3), wherein the projecting portion is a partition wall in the drainage introduction part.
(5) The device according to (3) or (4), wherein the projecting portion is formed by extending a sheet-like activated carbon constituting the catalyst portion.
(6)The dividing partThe apparatus in any one of (2)-(5) by which at least one part of the said sheet-like activated carbon is arrange | positioned in the drainage introduction part in the shape of a partition through the.
(7) The drainage introduction part is a cylindrical body capable of passing liquid.Consists of a core consisting ofThe wall has at least two along the height directionDividing partThe relevantDividing partAt least a part of the bag-like sheet-like activated carbon that opens downward through the wall is disposed in a partition wall shape in the drainage introduction portion, and the fibrous activated carbon layer is formed of the bag-like sheet-like activated carbon that opens downward in the cylindrical shape. The device according to (1), wherein the device is wound around the body.
(8)AboveThe apparatus according to any one of (1) to (7), wherein the fibrous activated carbon layer is formed by laminating sheet-like activated carbon, and includes a mesh-like body between at least one layer.
(9) The catalyst module according to any one of (1) to (8), wherein an upper part of the catalyst module is shielded so that the processing liquid is discharged only from the outer peripheral surface side of the catalyst unit. apparatus.
(10) The apparatus according to any one of (1) to (9), wherein the catalyst module is detachably attached to a bottom plate of the processing tank.
(11) The catalyst module includes an annular base portion that contacts an annular bottom portion of the catalyst module, and is provided on the inner side of the treatment vessel bottom plate, and a hole portion that is continuous with the inner ring portion of the base portion. A first holding means having a cylindrical insertion portion inserted into the drainage introduction portion, and having an internal thread portion at least on the inner wall of the inner ring portion;
  A through hole that is provided at a position corresponding to the first holding means with the bottom plate interposed therebetween, can be inserted into the inner ring portion, has an external thread portion on the outer peripheral portion, and can communicate with the drainage introduction portion A second holding means comprising a bolt part having
The device according to any one of (1) to (10), wherein the device is erected on the bottom plate of the treatment tank.
(12) The device according to (11), wherein the bolt portion in the second holding means has a tapered shape whose diameter increases upward.
(13) the catalyst module;
  A bottom plate of the treatment tank provided at the bottom of the catalyst module;
  A top plate for shielding the upper part of the catalyst module;
  The apparatus in any one of (1)-(12) equipped with the catalyst unit which has these with respect to the predetermined position in the housing of the said processing tank so that a vertical movement is possible.
(14) A catalyst module for waste liquid treatment,
  A drainage introduction part that is an inflow path of drainage that opens at least downward and points upward, and a catalyst part provided around the drainage introduction partAndThe drainage liquid in the drainage introduction part passes through the catalyst part and is discharged out of the module.
  The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
  The sheet-like activated carbon is formed in a bag-like body that opens downward,module.
(15) A catalyst module for waste liquid treatment,
  A drainage introduction part that is an inflow path of drainage that opens at least downward and points upward, and a catalyst part provided around the drainage introduction partAndThe drainage liquid in the drainage introduction part passes through the catalyst part and is discharged out of the module.
  The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
  The drainage introduction part is constituted by a core made of a cylindrical body having a wall part through which liquid can pass.
  The wall portion of the core made of the tubular body has at least one elongated slit-shaped dividing portion extending in the height direction,
  The sheet-like activated carbon is inserted into the dividing portion and wound around the outer periphery of the core.module.
(16) The module according to (14) or (15), wherein the catalyst portion has a portion protruding toward the drainage introduction portion.
(17) The module according to (16), wherein the projecting portion is a partition wall in the drainage introduction part.
(18) The module according to (16) or (17), wherein the protruding portion is formed by extending a sheet-like activated carbon constituting the catalyst portion.
(19)The dividing partThe module according to any one of (15) to (18), wherein at least a part of the sheet-like activated carbon is arranged in a partition wall shape in the drainage introduction part.
(20) The drainage introduction part is a cylindrical body capable of passing liquid.Composed of a core consisting ofThe wall has at least two along the height directionDividing partThe relevantDividing partAt least a part of the bag-like sheet-like activated carbon that opens downward through the pipe is disposed in a partition wall shape in the drainage introduction part, and the fibrous activated carbon layer is formed of the bag-like sheet activated carbon that opens downward in the cylindrical body. The module according to (14), wherein the module is wound around.
(21)AboveThe module according to any one of (14) to (20), wherein the fibrous activated carbon layer is formed by laminating sheet-like activated carbon, and includes a mesh-like body between at least one layer.
(22) The catalyst module according to any one of (14) to (21), wherein the upper part of the catalyst module is shielded so that the processing liquid is discharged only from the outer peripheral surface side of the catalyst unit. module.
(23)The drainage treatment apparatus according to any one of (1) to (13),
  The drainage treatment apparatus, wherein the fibrous activated carbon layer is formed of fibrous activated carbon containing silver.
(24) The catalyst module according to any one of (14) to (22),
  The catalyst module, wherein the fibrous activated carbon layer is formed of fibrous activated carbon containing silver.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The wastewater treatment apparatus of the present invention includes a cylindrical catalyst module and a treatment tank that houses one or more of the catalyst modules,
The catalyst module includes at least a drainage introduction part that is a drainage inflow path that opens downward and faces upward, and a catalyst part provided around the drainage introduction part, and the drainage liquid in the drainage introduction part And a catalyst part provided with a fibrous activated carbon layer so that it passes through the catalyst part and is discharged out of the module, and communicates with the drainage supply side outside the processing tank through the opening. Drained liquid from the liquid supply side is provided so as to be supplied to the catalyst unit,
The treatment tank stores the treatment liquid discharged from the catalyst module and causes the treatment liquid to flow out to the outside at a predetermined liquid level.
When the wastewater treatment apparatus is provided with the catalyst module and the treatment tank having such a configuration (the one equipped with these two means is also referred to as a treatment unit), the wastewater to be treated is supplied as an upward flow. The drainage can create an outward and / or upward process flow from the drainage inlet. For this reason, a catalytic reaction field can be formed uniformly in the catalyst portion. Therefore, partial catalyst deterioration is suppressed.
Moreover, the creation of the treatment flow can effectively prevent partial clogging in the catalyst module, particularly in the vicinity of the drainage introduction portion. Furthermore, according to the creation of such a processing flow, even when gas is generated by a catalytic reaction, the gas is discharged upward, so that a reduction in processing speed due to the generation of gas can be suppressed.
Furthermore, by creating the treatment flow, an upward or radial diffusion flow centered on the catalyst module in the treatment tank can be generated. Such a diffusion flow contributes to further progress of the catalytic reaction in the processing liquid stored in the processing tank.
[0008]
From the above, according to the present processing unit, a sufficient processing speed can be easily ensured. Furthermore, the processing speed can be maintained even if a plurality of catalyst modules are installed in the processing tank. For this reason, when a plurality of catalyst modules are installed, the processing capacity can be easily increased.
In addition, according to this processing unit, it contacts with the processing liquid on the surface layer side of the catalyst module, and the catalytic reaction is more completely performed.
[0009]
Hereinafter, embodiments of the present invention will be sequentially described with reference to FIGS. 1 to 10 exemplifying an overall outline, a catalyst module, a processing unit, a processing apparatus, a processing method, and the like. The various embodiments of the present invention are not limited to the configurations shown in the illustrated drawings. The catalyst module, the processing unit, the processing apparatus, the processing method, and other embodiments of the present invention will be described below. Various aspects constituted by all combinations of various forms of the present invention are included.
[0010]
(Catalyst module)
As shown in FIG. 2, the catalyst module 2 preferable for use in the present invention is a tubular body as a whole, and includes a drainage introduction part 4 that is a drainage inflow path that opens at least downward and points upward. A catalyst unit 10 is provided around the drainage introduction unit 4. In other words, the catalyst module 2 includes the catalyst portion 10 as a cylindrical body, and the inside thereof is the drainage introduction portion 4. The tubular form of the catalyst module 2 can take various cross-sectional forms, but is preferably a cylindrical form.
The drainage introduction part 4 has an opening 6 having an opening 6 at the lower side and directed upward. The drainage introduction part 4 may be formed up to a height that does not reach the upper end of the module 2, but is preferably provided over the entire height of the module 2. The drainage introduction part 4 may include a liquid-permeable cylindrical body (core), in particular. The core also functions as a structural support for the module 2. The core can be constituted by, for example, a cylindrical body having a mesh-like wall portion, or a cylindrical body having a porous wall portion made of resin, ceramics, or metal.
[0011]
The catalyst unit 10 is formed of a fibrous activated carbon layer 12 (hereinafter also referred to as catalyst layer 12) on the outer periphery of the drainage introduction unit 4. As a result of the formation of the fibrous activated carbon layer, the catalyst unit 10 is formed with an appropriate thickness, and the drainage liquid in the drainage introduction unit 4 passes through the catalyst unit and is discharged from the outer peripheral surface. It also has liquidity.
The relationship between the drainage introduction part 4 and the catalyst part 10 is that the drainage introduction part 4 and the catalyst part 10 are formed around the entire height of the module 2, and the drainage introduction part 4 becomes a through hole. When the drainage introduction part 4 is formed at a height that does not reach the upper end of the module 2 from below, and the drainage introduction part 4 is a concave part that opens downward, the bottom of the concave part The fibrous activated carbon layer 12 is preferably provided on the side, that is, on the upper side of the module 2.
[0012]
Although the catalyst part 10 in the module 2 is formed in a cylindrical body, a part of the catalyst part 10 protrudes from the inner wall into the hollow part. By allowing the catalyst part 10 to be convex from the inner wall to the hollow part, the flow of the drainage to the outer layer side of the catalyst part 10 is promoted through the convex part.
The form of the convex part 10a of the catalyst part 10 in a hollow part is not specifically limited. As shown to Fig.3 (a), it can also provide in the rim | limb shape which protrudes from an inner wall along an inner periphery with a fixed space | interval. Moreover, as shown in FIG.3 (b), it is preferable to provide in the partition-like body 10b which crosses a hollow part substantially. In addition, even if it is the partition-like body 10b, it is formed so that drainage may pass like the site | part of the other catalyst part 10. FIG. More preferably, as shown in FIG. 3 (c), a partition wall that crosses the hollow portion from one portion of the inner wall of the catalyst portion 10 toward the opposite inner wall and is connected to the inner wall of the opposite catalyst portion 10 This is a body 10b.
In addition, the form of the partition-like body 10b may be a single wall-like body, a plurality of parallel wall-like bodies, or a crossing wall shape.
[0013]
Such a cylindrical module 2 can be easily constructed by using the sheet-like activated carbon 14. For example, as shown to Fig.2 (a), the sheet-like activated carbon 14 can also be wound and formed so that it may have a predetermined | prescribed hollow part. Moreover, as shown in FIG.2 (b), it can obtain by winding the sheet-like activated carbon 14 around the outer periphery of the mesh-shaped core 8. FIG. According to the said structure, the shape retainability and intensity | strength of the module 2 are easy to be maintained, and the module 2 can also be constructed | assembled easily. In this case, the fibrous activated carbon layer 12 has a structure in which a plurality of sheet-like activated carbons 14 are laminated. The sheet-like activated carbon 14 is prepared by mixing with other binder fibers such as polyethylene fiber or polypropylene fiber by a paper making method, or by forming or forming a metal-containing activated carbon fiber obtained by attaching or kneading metals. It can be obtained by uniformly mixing with a polyester composite fiber having a sheath structure and forming a sheet by a dry method.
[0014]
In order to form the fibrous activated carbon layer 12 by the sheet-like activated carbon 14 applied to the outer periphery of the core 8, the sheet-like activated carbon 14 is spirally wound around the core 8 and heat-treated. The activated carbon layer 12 is not necessarily formed in a spiral shape by the sheet-like activated carbon 14, but can also be formed by combining the sheet-like activated carbon 14 in a number of concentric circles. Moreover, these laminated forms can also be combined.
[0015]
Moreover, in order to form the convex part 10a from the inner wall of the catalyst part 10 to the hollow part side, as shown in FIG. 4A, for example, the bent part of the sheet-like activated carbon 14 is provided only in the part to be convex. The bent portion can be protruded toward the hollow portion. Moreover, as shown in FIG.4 (b), it can also wind and form so that a part of sheet-like activated carbon 14 may be located in a hollow part as the partition-like body 10b. Furthermore, as shown in FIG. 4C, the planar portions of two cylindrical bodies having a semicircular cross section may be abutted, and the abutted planar portion may be a partition wall 10b.
[0016]
Moreover, when using the core 8, a partition-like body can also be formed easily.
That is, the dividing part 16 is formed in the wall part of the core 8, the sheet-like activated carbon 14 is inserted into the core 8 from the dividing part 16, and the sheet-like activated carbon 14 can be accommodated in the core 8. .
It is preferable that the dividing portion 16 be along the height direction of the catalyst module 2 in that the sheet-like activated carbon 14 can be easily inserted into the core 8. The form of the dividing portion 16 is not particularly limited as long as the sheet-like activated carbon 14 can be easily inserted, but is preferably an elongated slit or a gap along the height direction of the core 8. Moreover, according to the dimension of the sheet-like activated carbon 14, the said division part 16 is preferably formed over the range which can accommodate the sheet-like activated carbon 14 over the height direction roughly.
[0017]
In addition, it is preferable to provide at least two dividing portions 16, and it is preferable that they be opposed. When two or more divided portions 16 are provided, the sheet-like activated carbon 14 is provided so as to pass through these divided portions 16, whereby a state in which the flow of the drainage is better in the sheet-like activated carbon 14 can be obtained. Moreover, it becomes easy to fix the sheet-like activated carbon 14 to the core 8, and winding around the core 8 is also facilitated.
[0018]
Although the form of the dividing part 16 is not particularly limited, for example, as illustrated in FIG. 5, it can be formed in a slit shape in which the core 8 is cut. The part which made the division part formed by dividing | segmenting into 2 or more along the height direction oppose can also be made into the division part 16. FIG.
When the dividing part 16 is formed in a slit shape, the opening side of the slit can be the lower end side of the core 8 but can also be the upper end side.
[0019]
When the sheet-like activated carbon 14 is passed through the dividing portion 16 so that the hollow portion of the core 8 is present in the sheet-like activated carbon 14, not only the inner wall of the drainage introduction portion 4 but also the hollow portion of the drainage introduction portion 4. The waste liquid can be evenly distributed to the catalyst unit 10 disposed on the outer peripheral side of the drainage introduction part 4 via the sheet-like activated carbon 14 disposed in the same, so that the catalytic reaction can be made uniform.
[0020]
In any form, the sheet-like activated carbon 14 constituting the catalyst unit 10 can be a normal sheet-like body constituted by a single sheet-like body, but is a bag-like body 18 opening downward. (It is described as an example of usage in FIG. 5). When the bag-like body 18 is used, the outward flow of the drainage liquid is not hindered, the upward flow is suppressed to some extent, and the outward flow can be promoted. Moreover, the uniform distribution of the drainage in the catalyst unit 10 can be easily achieved. As a result, it is possible to prevent clogging and prolong the replacement cycle. In the case of the bag-shaped body 18, the catalyst portion 10 having a predetermined thickness can be easily configured.
[0021]
Moreover, when using the sheet-like activated carbon 14 in any form, the mesh-like body 20 can be provided between the layers of at least one sheet-like activated carbon 14. By providing such a mesh-like body 20, it is possible to easily secure a form maintaining the layer spacing and to enhance the drainage within the layer and the interlayer flowability. As a result, according to the configuration, it is possible to improve the catalytic reactivity or achieve a uniform distribution of the drainage without increasing the passage resistance.
In particular, as shown in FIG. 6, when the bag-like body 18 is used as the sheet-like activated carbon 14, the mesh-like body 20 can enclose the sheet-like activated carbon in the bag-like body 18, and can easily be interposed between the layers. A mesh-like body can be interposed.
[0022]
The module 2 can be constructed by other methods without using the sheet-like activated carbon 14. For example, a cylindrical filter in which fibrous activated carbon and organic polymer such as polyethyleneimine, polyacrylic acid, polyacrylamide, polyethylene fiber, polypropylene fiber, etc., are dispersed in water as a binder and dispersed in water, and a nonwoven fabric is set. This may be suction filtered and molded into a cylindrical cartridge. In this case, the convex part 10 and the partition-like body 10b can be formed as a part of the catalyst part 10 as needed.
[0023]
As the fibrous activated carbon, pitch-based, acrylic-based, phenol-based, cellulose-based and the like can be used, but pitch-based ones excellent in oxidation resistance are preferable.
Further, as the metal to be incorporated by being added to or kneaded into the fibrous activated carbon, iron, cobalt, nickel, manganese and silver are preferable, and compounds such as oxides and hydroxides of these metals may be used. The content of metal or the like is preferably 0.01 to 5% by weight as metal with respect to fibrous activated carbon. When the content is less than 0.01% by weight, the decomposition reaction by the activated carbon fiber itself is larger than the decomposition by the metal, and the consumption of the activated carbon fiber tends to increase. On the other hand, if it exceeds 5% by weight, it is difficult to contain the particles as fine particles on the activated carbon fiber, and the decomposition efficiency of hydrogen peroxide is lowered. Further, when metal fine particles exceeding 5% by weight are contained, especially cobalt, nickel, silver, etc. are expensive.
[0024]
A known method can be adopted as a method of incorporating the metals into the activated carbon fiber. For example, in the case of silver, there are a method in which fibrous activated carbon is immersed in an aqueous solution of silver nitrate, then taken out, dehydrated, heated to decompose silver nitrate, and silver is added, or a silver mirror method is used. Furthermore, it can be kneaded. Also, in the case of manganese, ozone is blown into an aqueous solution of manganese chloride to oxidize it, and the generated manganese oxide and manganate ions are adsorbed on fibrous activated carbon, or electrolytic manganese dioxide fine particles are mixed into a fibrous activated carbon sheet. There is a way to do it.
[0025]
In such a module 2, it is preferable that at least the upper end of the drainage introduction unit 4 is blocked, and more preferably, the entire upper end of the catalyst unit 10 including the drainage introduction unit 4 is blocked. This is because it is possible to force the drainage from the drainage introduction part 4 to be discharged as a processing liquid to the outside only through the outer peripheral surface of the catalyst part 10 by such blocking. By promoting the outward flow of the processing flow in the module 2, when the module 2 is disposed in the processing tank 40, circulation in the processing tank 40 can be formed or promoted by the outward flow. The shut-off also contributes to the uniform supply of drainage to the catalyst unit 10.
Such blocking is not particularly limited, and a method of sealing the shielding member 22 on the upper portion of the module 22 can be employed. Further, the shielding member 22 can also be used as the top plate of the processing tank 40. The blocking member 22 is preferably a gas selective permeable material. It is possible to avoid the gas from becoming difficult to escape due to the blocking by the blocking member 22.
[0026]
(Processing unit)
The processing unit 30 includes one or two or more catalyst modules 2 and a processing tank 40. An example of the processing unit 30 is shown in FIG.
The processing unit 30 preferably includes two or more modules 2. In the present invention, the processing capability of the processing unit 30 can be easily improved by accommodating a plurality of modules 2 in the processing tank 40.
The treatment tank 40 can accommodate an appropriate number of modules 2 and has a form capable of temporarily storing the treatment liquid discharged from these modules 2 around the modules 2. This is because a complete catalytic reaction can be expected to be performed by the catalyst layer 12 in contact with the temporarily stored processing solution.
Therefore, in the treatment unit of the present invention, the catalytic reaction occurs when the drainage liquid passes through the module 2, and even if the catalytic reaction substrate remains in the treatment liquid discharged from the module 2, A catalytic reaction is performed on the surface layer side of the catalyst layer 12 exposed in the treatment liquid in the substrate 40, and the substrate is completely erased.
[0027]
Although the processing tank 40 can be provided with a depth that exceeds the height of the module 2 that accommodates it or a depth that is less than that, it preferably accommodates the entire module 2 and is approximately the same as its height. It has depth. Furthermore, the processing tank 40 is provided with a configuration in which the modules 2 can be arranged while maintaining an approximately equal interval when an appropriate number of modules 2 are accommodated.
[0028]
The processing tank 40 includes a container-like casing 42. The casing 42 has a container shape and includes at least a wall portion 44 and a container bottom portion 46 constituting the outer periphery of the container.
The processing tank 40 contains a processing liquid therein and is formed so that the processing liquid can flow out at a predetermined liquid level. In order to configure the processing liquid to be able to flow out at a predetermined liquid level, most commonly, the processing tank 40 is configured as a container that opens upward, and the processing liquid can flow out with the opening position as a predetermined liquid level ( For example, see FIG. Although not shown, it can be realized by forming an opening for allowing the processing liquid to flow out on the wall corresponding to the predetermined liquid level.
The liquid level at which the processing liquid flows out is preferably near the position where the catalyst unit 10 of the module 2 is reached. According to this, it is possible to effectively utilize over almost the entire height of the catalyst portion 10 of the module 2.
In addition, in the processing tank 40, a top plate and a lid can be provided so that the upper portion can be appropriately blocked as long as the discharge of the processing liquid is not hindered.
[0029]
Further, as a mode of flowing out from the processing tank 40, it is preferable to include a bowl-shaped processing liquid outlet 80 for receiving the flowing processing liquid when flowing out from an upper opening or an opening provided in the wall. By providing the lead-out portion 80, the flowed processing liquid can be efficiently conveyed to the next stage even if the processing liquid simply overflows from the upper opening or the like.
The form of the derivation | leading-out part 80 is not specifically limited, The form suitable for the outflow form (site | part etc.) of the process liquid employ | adopted in the process layer 40 is employable.
7 and 9 show one form of the derivation unit 80. FIG. The lead-out portion 80 in these drawings is formed in a bowl shape over the outer periphery of the opening edge in a form in which the processing liquid flows out from the entire upper opening of the processing layer 40. In the lead-out portion 80, a pipe or an opening for conveying the processing liquid to the next stage is formed.
The outlet 80 is preferably formed in the vicinity of a predetermined liquid level from which the processing liquid flows out, but may be provided below the predetermined liquid level as long as the processing liquid can be received. For example, a tank shape surrounding the outer periphery of the wall 44 of the processing layer 40 can be combined with the processing tank and configured as a double tank.
[0030]
The module 2 is preferably erected on the bottom 46. Since the drainage is supplied as an upward flow from the drainage supply side to the drainage introduction part 4 of the module 2, the module 2 is erected on the bottom 46, and the drainage is discharged via the bottom 46 of the treatment tank 40. By supplying, the whole system can be made compact and simplified.
[0031]
The module 2 is erected with respect to the bottom 46 of the processing tank 40, but is not particularly limited, but is preferably detachably attached to the bottom 46. If it is detachable, replacement and maintenance of the module 2 can be facilitated.
The structure for desorption is not particularly limited, but for example, the structure shown in FIG. 8 can be adopted.
This detachable structure can be constituted by the first holding means 50 inside the processing tank 40 and the second holding means 60 outside the processing tank 40 with the bottom 46 interposed therebetween. As shown in FIG. 8, the first holding means 50 has an annular base portion 52 that can contact the annular bottom portion of the module 2 and a hole portion 58 that is continuous with the inner annular portion 54 of the base portion 52. And a cylindrical insertion portion 56 inserted into the drainage introduction portion 4.
[0032]
On the other hand, the second holding means 60 has a bolt part 62 that can be inserted into at least the inner ring part 54 of the base part 52, and the bolt part 62 communicates with the drainage introduction part 4 when attached. It has. Further, the second holding means 60 may have a head portion 66 that is continuous with the bolt portion 62.
Such first holding means 50 and second holding means 60 are formed to be fixable by screwing. Therefore, a female screw portion is formed at least on the inner wall of the inner ring portion 54 of the base portion 52 of the first holding means 50, and a male screw portion is formed on the outer periphery of the bolt portion 62 of the second holding means 60. ing. In the form shown in FIG. 8, the female screw portion is continuously formed over the inner wall of the hole portion 58 of the insertion portion 56.
[0033]
  When fixing by the first holding means 50 and the second holding means 60, a sealing material is appropriately used so that the drainage is introduced into the module 2 via the drainage introduction part 4.69Can be used. For example, the figure8As shown in the figure, the portion of the insertion portion 54 of the first holding means 50 that is in contact with the inner wall portion of the module 2 can be appropriately provided with an annular sealing material 69, and the head portion of the second holding means 60. An annular sealing material can also be provided between 66 and the bottom 46.
[0034]
Further, the diameter of the bolt portion 62 of the second holding means 60 is gradually increased toward the tip side thereof, that is, the side entering the drainage introduction portion 4 side of the module 2 by screwing. Is preferred. By adopting such a bolt shape, the bolt part 62 is inserted into the back part of the second holding means by screwing, so that the inner wall of the first holding means 50 is pressed more strongly and the adhesion or adhesion is increased. Can be improved. In addition, a slit 57 is formed in the insertion portion 56 of the first holding means 50 according to the bolt shape of the second holding means 60, and the insertion portion 56 is inserted into the insertion portion 56 by inserting the bolt portion 62. It is preferable to form so that the front end side of the swell extends.
[0035]
Further, in the processing unit 30, not only the module 2 but also the catalyst unit 70 in which the module 2 and the bottom 46 of the processing tank 40 are integrated can be attached to and detached from the cylindrical casing 44 of the processing tank 40. According to this configuration, the module 2 can be easily attached and detached, and maintenance such as cleaning of the casing bottom 46 and the wall 44 is facilitated.
The catalyst unit 70 preferably includes one or more modules 2 and a bottom 46, and more preferably includes a top plate 48 of the treatment tank 60.
[0036]
FIG. 9 shows an example of the catalyst unit 70. The catalyst unit 70 shown in FIG. 9 includes a plurality of modules 2 in an upright manner at the bottom 46. A means for attaching to the bottom 46 of the module 2 is not particularly limited, but it is preferable that the module 2 is detachable. As the mounting means, the holding means shown in FIG. 8 can also be used.
Further, the catalyst unit 70 includes a top plate 48 so as to block the top of each module 2. The top plate 48 serves as both the blocking member 22 at the top of the module 2 and the top plate 48 of the processing tank 60.
[0037]
Such a catalyst unit 70 can be positioned and supported with respect to the processing tank 40 by the support means 72 provided in the casing 42 of the processing tank 40. For example, as shown in FIG. 9, the support means 72 can be a convex portion that protrudes inward from the wall portion 46 of the processing tank 40. In addition, it can also provide continuously along this convex-shaped part and an internal peripheral surface, and can also be provided partially.
In particular, in the catalyst unit 70 shown in FIG. 9, since the module 2 can be supported by the top plate 48, the fixed state of the module 2 with respect to the bottom 46 can be stabilized, and the work for desorption can be performed. It can be made easier.
The catalyst unit 70 is preferably configured to be movable up and down with respect to the treatment tank 40. For example, as shown in FIG. 9, it is possible to use a cable that can be pulled out and taken out by the driving means with respect to the pulley attached to the top plate 48.
[0038]
(Processing equipment)
The treatment apparatus of the present invention includes at least the catalyst module 2 described above, and has a configuration in which the drainage is introduced into the drainage introduction unit 4 in an upward flow. Preferably, a configuration is also provided in which the processing liquid discharged from the catalyst unit 10 can be temporarily stored in the outer peripheral portion of the module 2. Furthermore, preferably, the processing unit 30 already described is provided. Furthermore, as illustrated in FIG. 10, the present processing apparatus includes one or more of a drainage storage tank, a drainage pH adjustment tank, a processing liquid storage tank, and the like that are generally included in such a processing apparatus. Can do.
In the processing apparatus of this invention, it is preferable to provide a pH processing tank. The pH treatment tank is arranged in front of the treatment unit 30, preferably immediately before. By adjusting the pH, the catalytic reaction in the processing unit 30 can be made efficient.
[0039]
In addition, it is preferable that the processing unit 30 includes a temperature control unit that can maintain the temperature in the tank at a temperature suitable for the catalytic reaction as necessary. In particular, the heating or cooling means can be provided in a jacket type on the outer peripheral side of the casing of the treatment tank 40. In addition, heating or cooling means may be provided on the side of the drainage supply to the treatment tank 40. Further, both of them can be provided with heating or cooling means. The temperature control is preferably performed by a control device that provides a means for detecting the temperature of the treatment liquid in the treatment tank 40, detects a signal from the detection means, and controls the heating or cooling means as necessary.
In addition, by arranging two or more processing units 30 in parallel or in series, it becomes possible to easily cope with an abnormality in the drainage inlet concentration and an increase in the inlet flow rate.
[0040]
(Processing method)
Next, a drainage processing method using this processing apparatus will be described.
This treatment method is a method of treating waste water by using the above-described treatment apparatus.
Hereinafter, the wastewater treatment process of the hydrogen peroxide-containing wastewater generated in the liquid crystal manufacturing process will be described.
The hydrogen peroxide-containing wastewater is transported from the manufacturing process to the main treatment process by a transporting means such as a pump from the relay tank via a relay tank or the like.
(PH adjustment step)
The transported waste water is temporarily stored, and the pH is adjusted as necessary. The pH of the wastewater is about 1 to 12.0. The catalytic reaction with fibrous activated carbon can proceed in such a pH range, but preferably the pH is adjusted to alkaline. If it is less than 7.0, the decomposition rate is slow, and if it exceeds 10.0, a large amount of neutralizing agent is required. More preferably, it is 9.0-10.0. Although the chemical | medical agent for pH adjustment is not specifically limited, A widely used inorganic chemical | medical agent can be used.
[0041]
(Filtration process)
In the case of an acidic liquid, if it is made alkaline after neutralization, a metal hydroxide or the like is generated, and there is a possibility that the module may be clogged with iron contained in the neutralizing agent. For this reason, a filter is provided before the catalyst treatment step. The filtration accuracy of the filter is selected from about 1 to 300 μm according to the object.
(Processing by catalytic reaction)
Wastewater whose pH is adjusted as necessary is supplied to the treatment process. The processing step includes a processing unit 30. The drainage is supplied as an upward flow through the drainage introduction part 4 to the module 2 accommodated in the treatment tank 40 by an appropriate conveying means. In the module 2, a treatment flow composed of an upward flow and an outward flow of drainage is generated. In particular, when the top part of the module 2 is blocked, the occurrence of the outward flow is larger than when the module is not blocked. Further, since the upper end side of the drainage introduction part 4 is blocked, a drainage flow that collides and descends at the upper end is also generated, so that it is possible to secure a long time for the drainage to stay in the module 2. become. As a result, the catalytic reaction field in the catalyst unit 10 can be made uniform. In particular, the processing flow discharged from the module 2 is favorably diffused into the processing tank 40 due to the generation of the outward flow. Therefore, even if the processing tank 40 is not particularly equipped with a stirring means or the like, the reaction of the catalytic reaction on the surface layer side of the catalyst layer 12 with the substrate remaining in the processing liquid in the processing tank 40 due to the generation of the diffusion flow from the module 2. The contact probability can be improved and the catalytic reaction can proceed more reliably.
[0042]
The temperature in the treatment tank 40 is preferably 15 ° C. or more and 60 ° C. or less. If the temperature is 15 ° C. or lower, the decomposition rate is slow, and if it exceeds 60 ° C., a heat resistant member is required. More preferably, it is 30 ° C. or more and 50 ° C. or less.
Hydrogen peroxide is decomposed by the catalyst layer 12 of the module 2 into water and oxygen. Oxygen is discharged from the upper side of the catalyst unit 10 of the module 2 by the upward flow of the supplied waste liquid, and is released as it is from the opening of the treatment tank 40.
[0043]
When the processing liquid reaches a predetermined liquid level set in advance in the processing tank 40, the processing liquid flows out from the opening or the opening. While staying in the treatment tank 40, a catalytic reaction on the surface layer side of the treatment liquid and the catalyst layer 12 can be performed. The capacity of the treatment tank 40 is set so that the component to be treated is decomposed to a desired concentration within the residence time in consideration of the concentration of the component to be decomposed in the effluent and the processing capability of the module 2. Yes.
The processing liquid that has flowed out is transferred to and stored in a processing liquid storage tank through the lead-out portion 80, piping, and the like.
[0044]
This treatment method is useful for drainage treatment using a catalytic reaction using activated carbon, and the type of drainage is not particularly limited. Preferably, it can be used for wastewater in the manufacturing process of semiconductors and liquid crystals, wastewater in manufacturing of foods, and processing processes. In addition, examples of the substrate for the catalytic reaction include hydrogen peroxide, persulfate (mixed solution of sulfuric acid and hydrogen peroxide solution), ammonia perwater (mixed solution of ammonia water and hydrogen peroxide solution), ozone, and the like. Can do.
In addition, even if the catalytic reaction by activated carbon is not used in the same configuration, drainage treatment and water purification treatment utilizing the adsorption action of activated carbon can be used.
[0045]
As described above, according to the present processing method, the use of fibrous activated carbon having a large specific surface area and the module and the processing unit are configured so as to obtain an efficient contact state, thereby achieving high processing efficiency. be able to. Moreover, it is possible to easily increase the processing capacity so as to cope with an increase in the supply rate of the drainage, and as a result, it is possible to easily increase the processing amount with high processing efficiency. For example, a space velocity (SV) of 50 or more can be achieved.
In addition, by keeping SV high, gas (oxygen) generated by decomposition can be easily vented out of the module by the processing liquid, and it is not necessary to introduce a complicated gas venting structure.
Moreover, if pH control and temperature control can be appropriately performed at the time of start-up of the operation, it is possible to supply waste liquid and start the processing process without requiring any other special pre-stage process.
For example, according to this treatment method, it has been found that a decomposition efficiency of 99% or more can be achieved when a hydrogen peroxide-containing effluent of about 5000 ppm is treated.
[0046]
In this apparatus, it is particularly effective to use metal-containing activated carbon fibers. When a column (inner diameter: φ15 (mm) * layer height: 9.5 (mm) is filled with metal-containing activated carbon fiber, hydrogen peroxide solution is passed through and a decomposition experiment is conducted, a high decomposition ability is confirmed. The experimental conditions were as follows, and the results are shown in Table 1. The decomposition ability of the hydrogen peroxide solution was indicated by a BV value (bed volume). This indicates how many times the unit volume corresponds to the amount of drainage treated under certain conditions, that is, the BV value in this experiment is H₂O₂The value obtained by dividing the amount that can be treated when drainage is flowed at SV = 40-50 (1 / h) to reduce the concentration of 1000 mg / L drainage to 15 mg / L or less by the unit volume of the device. is there.
(Experimental conditions)
Inlet hydrogen peroxide concentration: 1000 (mg / L)
Other coexisting substance concentration: SO_Four ^2-: 20000 (mg / L)
Hydrogen peroxide concentration after treatment: 15 (mg / L) or less
SV value: 40-50 (1 / h)
Filter condition
Activated carbon: 2.3 g (Ag-containing product)
Unitika Ltd .: Metal-containing activated carbon fiber
Shape: Layer height: 9.5 (mm)
Inner diameter: φ15 (mm)
[0047]
[Table 1]

As shown in Table 1, this column showed high hydrogen peroxide decomposition ability. From this result, it was found that a large amount of treatment can be performed at a high treatment speed by using activated carbon fibers containing metal in this apparatus.
[0048]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the apparatus and processing method which can perform efficient drainage processing can be provided.
[Brief description of the drawings]
FIG. 1 shows the main features of the present invention.
FIG. 2 is a partially cutaway view (a) showing an example of a catalyst module and a view (b) showing a specific example of its configuration.
FIG. 3 is a view showing other examples (a) to (c) of the catalyst module.
FIG. 4 is a diagram showing examples (a) to (c) of convex portions or partition walls in a catalyst module using sheet-like activated carbon.
FIG. 5 is a diagram showing a case where a catalyst module is configured using a core.
FIG. 6 is a view showing that a mesh-like body is enclosed in a sheet-like activated carbon bag-like body.
FIG. 7 is a diagram showing a processing unit in the present invention.
FIG. 8 is a diagram illustrating an example of a fixed state of a bottom plate and a catalyst module in a processing unit.
FIG. 9 is a diagram showing an example of a catalyst unit that allows a catalyst module to be easily detached from a treatment tank.
FIG. 10 is a diagram illustrating an example of the entire processing apparatus.
[Explanation of symbols]
2 Catalyst module
4 Drainage introduction part
6 opening
8 core
10 Catalyst part
10a Convex part
10b Bulkhead
12 Fibrous activated carbon layer (catalyst layer)
14 Sheet activated carbon
16 part
18 Sheet-like activated carbon bag
20 Liquid-permeable structure (mesh-like body)
22 Blocking member
30 processing units
40 treatment tank
42 Casing
44 Wall
46 Bottom
48 Top plate
50 First holding means
52 Base part
54 Inner ring
56 Interpolation part
58 hole
60 Second holding means
62 Bolt part
64 Through hole
66 Head
70 Catalyst unit
72 Support means
80 Deriving part

Claims (24)

A drainage treatment device,
A cylindrical catalyst module, and a treatment tank containing one or more of the catalyst modules,
Said catalyst module, at least a drainage inlet portion opened downward is drainage inlet passage directed upwards, and a catalyst unit provided around the drainage inlet portion, and discharge of the waste-liquid inlet portion liquid is discharged through the catalyst unit outside the module, communicates with the discharge liquid supply side of the treatment tank outside via the front Symbol opening, supply drainage from the drainage supply side to the catalyst portion Is possible,
The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
The sheet-like activated carbon is formed in a bag-like body that opens downward,
The said processing tank is an apparatus which stores the processing liquid discharged | emitted from the said catalyst module, and flows out the said processing liquid outside in a predetermined liquid level. A drainage treatment device,
A cylindrical catalyst module, and a treatment tank containing one or more of the catalyst modules,
Said catalyst module, at least a drainage inlet portion opened downward is drainage inlet passage directed upwards, and a catalyst unit provided around the drainage inlet portion, and discharge of the waste-liquid inlet portion liquid is discharged through the catalyst unit outside the module, communicates with the discharge liquid supply side of the treatment tank outside via the front Symbol opening, supply drainage from the drainage supply side to the catalyst portion Is possible,
The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
The drainage introduction part is constituted by a core made of a cylindrical body having a wall part through which liquid can pass.
The wall portion of the core made of the tubular body has at least one elongated slit-shaped dividing portion extending in the height direction,
The sheet-like activated carbon is inserted into the dividing portion and wound around the outer periphery of the core,
The said processing tank is an apparatus which stores the processing liquid discharged | emitted from the said catalyst module, and flows out the said processing liquid outside in a predetermined liquid level.   The apparatus according to claim 1, wherein the catalyst unit has a portion protruding toward the drainage introduction unit.   The apparatus according to claim 3, wherein the protruding portion is a partition-like body in the drainage introduction part.   The apparatus according to claim 3 or 4, wherein the protruding portion is formed by extending a sheet-like activated carbon constituting the catalyst portion. The apparatus in any one of Claims 2-5 by which at least one part of the said sheet-like activated carbon is arrange | positioned in the drainage introduction part through the said parting part in the shape of a partition. The drainage introduction part is constituted by a core made of a cylindrical body through which liquid can pass, and the wall part has at least two parting parts along the height direction, and the bag opens downward via the parting part. At least a part of the sheet-like activated carbon is arranged in a partition shape in the drainage introduction part, and the fibrous activated carbon layer is formed by wrapping a bag-like sheet-like activated carbon that opens downward around the cylindrical body, The apparatus of claim 1. The apparatus according to any one of claims 1 to 7, wherein the fibrous activated carbon layer is formed by laminating sheet-like activated carbon and includes a mesh-like body between at least one layer.   In the said catalyst module, the apparatus in any one of Claims 1-8 with which the upper part of the said catalyst module is shielded so that a process liquid may be discharged | emitted only from the outer peripheral surface side of the said catalyst part.   The apparatus according to any one of claims 1 to 9, wherein the catalyst module is detachably attached to a bottom plate of the processing tank. The catalyst module has an annular base portion that is in contact with the annular bottom portion of the catalyst module, provided on the inside of the treatment tank of the bottom plate of the treatment tank, and a hole that is continuous with the inner ring portion of the base portion, A first insertion means having a cylindrical insertion portion inserted into the drainage introduction portion, and having a female screw portion on at least the inner wall of the inner ring portion;
A through hole that is provided at a position corresponding to the first holding means with the bottom plate interposed therebetween, can be inserted into the inner ring portion, has an external thread portion on the outer peripheral portion, and can communicate with the drainage introduction portion A second holding means comprising a bolt part having
The apparatus according to claim 1, wherein the apparatus is erected on the bottom plate of the treatment tank.   The device according to claim 11, wherein the bolt portion in the second holding means has a tapered shape whose diameter increases upward. The catalyst module;
A bottom plate of the treatment tank provided at the bottom of the catalyst module;
A top plate for shielding the upper part of the catalyst module;
The apparatus in any one of Claims 1-12 provided with the catalyst unit which can be moved up and down with respect to the predetermined position in the housing of the said processing tank. A catalyst module for waste liquid treatment,
A drainage inlet portion is a inlet channel drainage directed to open upwardly at least downwardly, and a catalyst unit provided around the drainage inlet section, drainage of the drainage insertable portion the catalyst Passed through the module and discharged outside the module,
The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
The sheet-like activated carbon is a module formed in a bag-like body that opens downward . A catalyst module for waste liquid treatment,
A drainage inlet portion is a inlet channel drainage directed to open upwardly at least downwardly, and a catalyst unit provided around the drainage inlet section, drainage of the drainage insertable portion the catalyst Passed through the module and discharged outside the module,
The catalyst part is composed of a fibrous activated carbon layer in which sheet-like activated carbon is laminated in a plurality of layers,
The drainage introduction part is constituted by a core made of a cylindrical body having a wall part through which liquid can pass.
The wall portion of the core made of the tubular body has at least one elongated slit-shaped dividing portion extending in the height direction,
The module , wherein the sheet-like activated carbon is inserted into the dividing part and wound around the outer periphery of the core .   The module according to claim 14 or 15, wherein the catalyst unit has a portion protruding toward the drainage introduction unit.   The module according to claim 16, wherein the protruding portion is a partition-like body in the drainage introduction part.   The module according to claim 16 or 17, wherein the protruding portion is formed by extending a sheet-like activated carbon constituting the catalyst portion. The module according to any one of claims 15 to 18, wherein at least a part of the sheet-like activated carbon is arranged in a partition wall shape in the drainage introduction part via the dividing part . The drainage introduction part is constituted by a core made of a cylindrical body through which liquid can pass, and the wall part has at least two parting parts along the height direction, and the bag opens downward via the parting part. At least a part of the sheet-like activated carbon is arranged in a partition shape in the drainage introduction part, and the fibrous activated carbon layer is formed by wrapping a bag-like sheet activated carbon that opens downward around the cylindrical body. Item 15. The module according to Item 14. The module according to any one of claims 14 to 20, wherein the fibrous activated carbon layer is formed by laminating sheet-like activated carbon, and includes a mesh-like body between at least one layer.   The module according to any one of claims 14 to 21, wherein in the catalyst module, an upper part of the catalyst module is shielded so that the processing liquid is discharged only from the outer peripheral surface side of the catalyst part. The drainage treatment apparatus according to any one of claims 1 to 13,
The drainage treatment apparatus, wherein the fibrous activated carbon layer is formed of fibrous activated carbon containing silver. The catalyst module according to any one of claims 14 to 22, wherein
The catalyst module, wherein the fibrous activated carbon layer is formed of fibrous activated carbon containing silver.

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