JPH11179365A - Method and apparatus for treating colored solution - Google Patents
Method and apparatus for treating colored solutionInfo
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- JPH11179365A JPH11179365A JP35502097A JP35502097A JPH11179365A JP H11179365 A JPH11179365 A JP H11179365A JP 35502097 A JP35502097 A JP 35502097A JP 35502097 A JP35502097 A JP 35502097A JP H11179365 A JPH11179365 A JP H11179365A
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- electrode
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は着色溶液の処理方
法、例えば染料や染色工業廃水の脱色処理方法に関する
ものである。The present invention relates to a method for treating a colored solution, for example, a method for decolorizing a dye or dyeing industrial wastewater.
【０００２】[0002]
【従来の技術】染料及び染色工業廃水は、廃水のＢＯ
Ｄ、ＣＯＤ及び色度を低減させるため、一般には凝集沈
澱処理または加圧浮上処理を活性汚泥処理と組み合わせ
た処理がされている。しかしながら、この処理では、大
きな処理施設と比較的長い処理時間を要する割に色度の
低減が十分なものでないため、処理後の排水中には多く
の染料が残存し、このため、染色排水が河川等に排水さ
れて河川の美観を損ねたり、水中の染料が光の透過を妨
げて生物の生産性に影響を与えたりしている。近年は電
解法やオゾン、活性炭または酸化剤を用いた三次処理あ
るいは水による希釈処理などを併用して色度の低減が図
られている。しかし凝集沈澱処理と活性炭を組み合わせ
染料を吸着して除去・脱色をおこなう方法は処理コスト
がかなり大きくなり、また低濃度域では染料を吸着し除
去しにくいという問題がある。BACKGROUND OF THE INVENTION Dye and dyeing industrial effluents are
In order to reduce D, COD and chromaticity, a treatment in which coagulation sedimentation treatment or pressure flotation treatment is combined with activated sludge treatment is generally performed. However, in this treatment, a large treatment facility and a relatively long treatment time are required, but the chromaticity is not sufficiently reduced, so that a large amount of dye remains in the treated wastewater. Water is drained into rivers and the like, which impairs the aesthetics of rivers, and dyes in water hinder the transmission of light and affect the productivity of living organisms. In recent years, chromaticity has been reduced by using an electrolysis method, a tertiary treatment using ozone, activated carbon or an oxidizing agent, or a dilution treatment with water. However, the method of adsorbing and removing and decoloring a dye by combining a coagulation precipitation treatment with activated carbon has a problem that the treatment cost is considerably large, and that the dye is difficult to adsorb and remove in a low concentration range.
【０００３】最近研究開発が積極的に行われている方法
のひとつに電気化学反応を利用した電解酸化法がある。
染色排水を電解槽の中で電解酸化を行ない脱色する方法
であり、例えば「染色研究」Vol,40 N0.2 (1996) p19、
特開平５-115879、及び特開平８-281271等にその記載を
みることができるが、多額の処理費用を要すため、より
効率的に脱色を行う新規な装置及びそれによる方法が望
まれている。[0003] One of the methods which are being actively researched and developed recently is an electrolytic oxidation method utilizing an electrochemical reaction.
It is a method of performing electrolytic oxidation of dyeing wastewater in an electrolytic tank to decolorize, for example, "Dyeing Research" Vol, 40 N0.2 (1996) p19,
The description can be found in JP-A-5-115879, JP-A-8-281271, and the like, but a large amount of processing cost is required, and thus a new apparatus and a method by which decolorization is performed more efficiently are desired. I have.
【０００４】[0004]
【発明が解決しようとする課題】本発明者らは上記課題
に対して種々の検討を加えた結果、イオン交換膜等の隔
膜を一対の電極間に配した電解装置を用いて電解質を含
む水を電気分解したときに陽極側で生成する機能水が染
料の脱色能に極めて優れているという知見を得るに至っ
た。The inventors of the present invention have made various studies on the above-mentioned problems, and as a result, have found that water containing an electrolyte is used using an electrolysis apparatus in which a membrane such as an ion exchange membrane is disposed between a pair of electrodes. Has been found that functional water generated on the anode side when electrolyzed is extremely excellent in the decolorizing ability of the dye.
【０００５】本発明は、このような新たな知見に基づき
なされたものであり、その目的は低濃度域まで効率的に
着色溶液を脱色することが可能であり、且つその工程が
安全で安定している、簡便な着色溶液の処理方法を提供
する点にある。[0005] The present invention has been made based on such new knowledge, and an object of the present invention is to make it possible to efficiently decolorize a coloring solution up to a low concentration range, and to make the process safe and stable. And to provide a simple method for treating a colored solution.
【０００６】また他の目的は、染料溶液の脱色を短時間
で、確実に行なうことのできる染料を含む溶液の脱色装
置を提供する点にある。Another object of the present invention is to provide an apparatus for decolorizing a solution containing a dye, which can surely perform the decolorization of the dye solution in a short time.
【０００７】[0007]
【課題を解決するための手段】本発明の一実施態様に係
る染料溶液の処理方法は、一対の電極、該電極間に電圧
を印加する電源、及び該電極間に分離膜を有する処理槽
を用意する工程；及び該処理槽に電解質を溶解させた染
料水溶液を入れ、該電極間に電圧を印加して該染料水溶
液を電気分解する工程、を有することを特徴とする。According to one embodiment of the present invention, a method for treating a dye solution comprises a pair of electrodes, a power supply for applying a voltage between the electrodes, and a treatment tank having a separation membrane between the electrodes. A step of preparing an aqueous solution of a dye in which an electrolyte is dissolved in the treatment tank, and applying a voltage between the electrodes to electrolyze the aqueous solution of the dye.
【０００８】また本発明の他の実施態様にかかる染料溶
液の処理方法は、電解質を溶解させた水の電気分解によ
って、陽極近傍に生成する機能水と染料溶液とを接触さ
せる工程を有することを特徴とする。A method for treating a dye solution according to another embodiment of the present invention includes a step of contacting functional water generated near the anode with the dye solution by electrolysis of water in which an electrolyte is dissolved. Features.
【０００９】本発明の一実施態様に係る染料溶液の処理
装置は、分離膜を介して電気分解用の電極対を有する処
理槽、該電極対に電力を供給する手段、電解質を溶解し
た水を該処理槽に供給する手段、及び染料水溶液を該処
理槽の陽極側に供給する手段を有することを特徴とす
る。An apparatus for treating a dye solution according to one embodiment of the present invention comprises a treatment tank having an electrode pair for electrolysis via a separation membrane, a means for supplying power to the electrode pair, and a water dissolving electrolyte. It is characterized by having means for supplying the processing tank and means for supplying the aqueous dye solution to the anode side of the processing tank.
【００１０】また本発明の他の実施態様に係る染料を含
む水の脱色装置は、水素イオン濃度（pH値）が１以上４
以下、酸化還元電位（作用電極：プラチナ電極、参照電
極：銀−塩化銀電極）が８００ mV以上１５００ mV以
下、かつ残留塩素濃度が５ mg/l以上１５０mg/l以下で
ある機能水を処理槽に導入する手段；及び該染料を含む
水を処理槽に導入する手段、を有することを特徴とす
る。[0010] In another embodiment of the present invention, the decolorizing apparatus for water containing a dye has a hydrogen ion concentration (pH value) of 1 or more.
Hereafter, a functional water having a redox potential (working electrode: platinum electrode, reference electrode: silver-silver chloride electrode) of 800 mV to 1500 mV and a residual chlorine concentration of 5 mg / l to 150 mg / l is treated. Means for introducing the dye-containing water into the treatment tank.
【００１１】[0011]
【発明の実施の形態】図１は本発明の一実施態様にかか
る染料等を含む着色溶液の脱色処理のための装置の模式
図である。処理槽１４はイオン交換膜１１によって電気
分解用の陽極１２の側１４−１、及び陰極１３の側１４
−２とに分離されている。処理槽１４の各々の領域１４
−１及び１４−２に電解質を溶解した水がポンプ15によ
り供給され、処理槽14が電解質を溶解した水で満たされ
る。そして電極12,13に電源16から電力が供給されると
陽極側１２に機能水が生成し、また着色溶液、例えば染
料水溶液は供給装置１７から所望の流量で連続的に処理
槽１４の陽極１２側１４−１に供給される。ここで着色
溶液は陽極近傍に生成した機能水と接触、反応し脱色処
理が行われる。そして処理で使われた機能水は処理槽１
４の陽極側から排水口１９を通してタンク18に排出さ
れ、また処理槽１４の陰極側１４−２に生成したアルカ
リ性の機能水もまた排水口１９を通してタンク１８に排
出される。FIG. 1 is a schematic view of an apparatus for decolorizing a colored solution containing a dye or the like according to an embodiment of the present invention. The treatment tank 14 is separated by the ion exchange membrane 11 into a side 14-1 of the anode 12 for electrolysis and a side 14-1 of the cathode 13
-2. Each area 14 of the processing tank 14
The water in which the electrolyte is dissolved in -1 and 14-2 is supplied by the pump 15, and the treatment tank 14 is filled with the water in which the electrolyte is dissolved. When power is supplied to the electrodes 12 and 13 from the power supply 16, functional water is generated on the anode side 12, and a coloring solution, for example, an aqueous dye solution is continuously supplied from the supply device 17 at a desired flow rate to the anode 12 of the processing tank 14. It is supplied to the side 14-1. Here, the coloring solution comes into contact with and reacts with the functional water generated near the anode to perform a decolorizing treatment. And the functional water used in the treatment is treated tank 1
4 is discharged from the anode side to the tank 18 through the drain port 19, and the alkaline functional water generated on the cathode side 14-2 of the treatment tank 14 is also discharged to the tank 18 through the drain port 19.
【００１２】脱色の対象となる着色溶液としては、染料
及び染色工業廃水等特に限定されないが、例えばアゾ染
料、アントラキノン染料、フタロシアニン染料、インジ
ゴイド染料、カルボニウム染料、キノンイミン染料、メ
チン染料などを含む水が挙げられる。The coloring solution to be decolorized is not particularly limited, such as dyes and dyeing industrial wastewater. For example, water containing azo dyes, anthraquinone dyes, phthalocyanine dyes, indigoid dyes, carbonium dyes, quinone imine dyes, methine dyes, etc. No.
【００１３】また陽極近傍に生成する機能水とは、例え
ば水素イオン濃度（pH値）が１以上４以下、酸化還元電
位（作用電極：プラチナ電極、参照電極：銀−塩化銀電
極）が８００ mV以上１５００ mV以下、且つ塩素濃度が
５ mg/l以上１５０mg/l以下であるものが挙げられる。
このような機能水は上記した様に電解質水溶液の電気分
解によって得ることができる。具体的には例えば電解質
として塩化ナトリウムを用いた場合、その濃度を２０ m
g/l〜２０００ mg/lとし、電解電流値を2A〜20Aとする
ことによって得ることができる。The functional water generated in the vicinity of the anode includes, for example, a hydrogen ion concentration (pH value) of 1 to 4 and an oxidation-reduction potential (working electrode: platinum electrode, reference electrode: silver-silver chloride electrode) of 800 mV. At least 1500 mV and a chlorine concentration of 5 mg / l to 150 mg / l.
Such functional water can be obtained by electrolysis of the aqueous electrolyte solution as described above. Specifically, for example, when sodium chloride is used as the electrolyte, its concentration is set to 20 m
g / l to 2000 mg / l and an electrolytic current value of 2 A to 20 A.
【００１４】なお、上記のような性状を有する機能水は
市販の強酸性電解水生成器（例えば、商品名： オアシ
スバイオハーフ；旭硝子エンジニアリング（株）社製）
等を用いることで得ることができる。よってこれらの市
販の機能水生成ユニットを図１に示した装置の一部とし
て利用することもできる。なお、図示していないがタン
ク18に排出された機能水は、その一部若しくは全部に電
解質を溶解し処理槽14にポンプ15で供給してもよい。The functional water having the above properties is a commercially available strongly acidic electrolyzed water generator (for example, trade name: Oasis Bio Half; manufactured by Asahi Glass Engineering Co., Ltd.).
And the like. Therefore, these commercially available functional water generation units can be used as a part of the apparatus shown in FIG. Although not shown, the functional water discharged to the tank 18 may be partially or entirely dissolved in the electrolyte and supplied to the treatment tank 14 by the pump 15.
【００１５】また隔膜として好適に用い得るイオン交換
膜としては、陰極側及び陽極側の着色溶液を各々反対側
に移動させず、陽極側に存在する陽イオン（Ｎａ+、Ｃ
ａ2+、Ｍｇ2+、Ｋ+等）の陰極側への不可逆な移動を許
容し、また陰極側に存在する陰イオン（Ｃｌ-、Ｓ
Ｏ4 2-、ＨＣＯ3 -等）の陽極側への不可逆な移動を許容
するものを好適に用いることができる。The ion exchange membrane which can be suitably used as the membrane includes a cation (Na + , C +) existing on the anode side without moving the coloring solutions on the cathode side and the anode side to the opposite sides.
a 2+ , Mg 2+ , K + ) can be irreversibly moved to the cathode side, and anions (Cl − , S
Those that allow irreversible movement of O 4 2− , HCO 3 − and the like to the anode side can be suitably used.
【００１６】また該染料及び染色工業廃水と陽極側に生
成した機能水と接触させ分解を行なう処理槽１４−１に
は接触・反応を促進するための手段として例えば攪拌手
段２０等を配置することが好ましい。In the treatment tank 14-1 for decomposing the dye and dyeing industrial wastewater by contact with functional water generated on the anode side, for example, a stirring means 20 or the like is provided as a means for promoting contact and reaction. Is preferred.
【００１７】図２は他の実施態様にかかる装置構成の概
略図である。FIG. 2 is a schematic diagram of a device configuration according to another embodiment.
【００１８】機能水生成器21よって生成された機能水は
所望の量を、処理槽22にポンプ23で供給される。染料を
含む水貯蔵槽24から染料を含む水が所望の量、処理槽22
に供給される。攪拌器20により、染料を含む水と機能水
との接触が促進され脱色処理がおこなわれる。処理がお
こなわれた廃液は脱色処理槽22からタンク26に排出され
る。機能水生成器 21で機能水を生成後、脱色処理槽22
で機能水と染料を含む水と接触させる本構成では、染料
が機能水生成器内に混入し機能水生成器を汚染すること
がない。また図示していないがタンク18に排出される処
理で使われた機能水の一部若しくは全部を強酸性機能水
生成器21に給送して、新たな機能水の生成に用いてもよ
い。A desired amount of functional water generated by the functional water generator 21 is supplied to a treatment tank 22 by a pump 23. From the water storage tank 24 containing the dye, a desired amount of water containing the dye is
Supplied to The stirrer 20 promotes the contact between the water containing the dye and the functional water to perform a decolorizing treatment. The waste liquid subjected to the treatment is discharged from the decolorizing treatment tank 22 to the tank 26. After the functional water is generated by the functional water generator 21, the decolorizing tank 22
In this configuration in which the functional water and the water containing the dye are brought into contact with each other, the dye does not enter the functional water generator and contaminate the functional water generator. Although not shown, a part or all of the functional water used in the process of discharging to the tank 18 may be supplied to the strongly acidic functional water generator 21 and used for generating new functional water.
【００１９】なおこの実施態様においては機能水として
は電解質を含む水溶液の電気分解によって得られる機能
水ばかりでなく、例えば原水に種々の試薬を溶解して水
素イオン濃度（pH値）が１以上４以下、酸化還元電位
（作用電極：プラチナ電極、参照電極：銀−塩化銀電
極）が８００ mV以上１５００ mV以下、かつ塩素濃度が
５mg/l以上１５０mg/l以下に調製した機能水を用いるこ
ともできる。具体的には純水に塩酸０.００１Ｎ〜０.１
Ｎ、塩化ナトリウム０.００５Ｎ〜０.０２Ｎ、及び次亜
塩素酸ナトリウム０.０００５Ｍ〜０.０１Ｍとすること
によって上記の特性を有する機能水を合成することが可
能である。ここで原水とは例えば純水、水道水、河川水
及び海水を包含する。これらの原水は、通常ｐＨが６〜
８、酸化還元電位が−２００〜３００ｍＶ、そして塩素
濃度は最大でも１ｍｇ程度であり、当然のことながら着
色溶液の脱色能は有していない。In this embodiment, the functional water is not limited to functional water obtained by electrolysis of an aqueous solution containing an electrolyte. For example, various reagents may be dissolved in raw water to have a hydrogen ion concentration (pH value) of 1 to 4. Hereinafter, functional water whose oxidation-reduction potential (working electrode: platinum electrode, reference electrode: silver-silver chloride electrode) is adjusted to 800 mV to 1500 mV, and chlorine concentration adjusted to 5 mg / l to 150 mg / l may be used. it can. Specifically, 0.001N to 0.1N of hydrochloric acid in pure water.
By setting N, sodium chloride to 0.005N to 0.02N, and sodium hypochlorite to 0.0005M to 0.01M, it is possible to synthesize functional water having the above characteristics. Here, the raw water includes, for example, pure water, tap water, river water, and seawater. These raw waters usually have a pH of 6 to
8. The oxidation-reduction potential is -200 to 300 mV, and the chlorine concentration is at most about 1 mg. Naturally, the coloring solution has no decolorizing ability.
【００２０】以下、実施例により本発明を詳述するが、
これらは本発明をなんら限定するものではない。Hereinafter, the present invention will be described in detail with reference to Examples.
They do not limit the invention in any way.
【００２１】実施例１ 染料廃液の脱色装置 図１に示す装置を用いて染料廃液の脱色処理を行なっ
た。市販の強酸性電解水生成装置（ 商品名：オアシス
バイオハーフ；旭硝子エンジニアリング（株）社製）の
電解水生成ユニットを本実施例の処理装置の脱色槽１４
の一部として用いた。なお 脱色槽１４中には合成染料
廃液と機能水の接触を促進させるために陽極側に攪拌器
２０を設置した。 Example 1 Apparatus for decolorizing dye waste liquid The apparatus shown in FIG. 1 was used for decolorizing dye waste liquid. The electrolyzed water generation unit of a commercially available strongly acidic electrolyzed water generation device (trade name: Oasis Bio Half; manufactured by Asahi Glass Engineering Co., Ltd.) is connected to the decolorization tank 14 of the treatment device of this embodiment.
Used as part of In the decolorization tank 14, a stirrer 20 was provided on the anode side to promote contact of the synthetic dye waste liquid with functional water.
【００２２】下記に示す組成の合成の染料廃液を人工的
につくり、これを本実施例の脱色実験に供した。A synthetic dye waste solution having the following composition was artificially prepared, and this was subjected to the decolorization experiment of this example.
【００２３】合成染料廃液組成； キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｂｋ、ブラック・・・ 70 ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｙ、イエロー・・・ 90 ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｍ、マゼンタ・・・ 100 ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｃ、シアン・・・ 100ppmSynthetic dye waste liquid composition; BJ cartridge BJI-201 manufactured by Canon Inc.
Bk, black: 70 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
Y, yellow: 90 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
M, magenta: 100 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
C, cyan ... 100ppm
【００２４】次いで脱色槽１４の陽極１２側に、上記合
成染料廃液を供給手段１７によって供給した。一方塩化
ナトリウムを１０００ｍｇ／ｌの濃度で溶解させた水を
電解質タンク１０及び搬送ポンプ１５を用いて脱色槽１
４に供給した。脱色槽１４が合成染料廃液と電解質を溶
解した水で満たされたところで、電気分解用の電極対１
２及び１３に電源１６から電力を供給し、陽極側１２に
機能水を生成させた。なお電解条件としては７Ａで1.５
時間とした。この条件はpH2.1、酸化還元電位1150 mV、
残留塩素濃度54 mg/lを有する機能水を生成する条件で
ある。強酸性電解水生成ユニットを30分間稼動した。Next, the synthetic dye waste liquid was supplied to the anode 12 side of the decolorization tank 14 by the supply means 17. On the other hand, water in which sodium chloride was dissolved at a concentration of 1000 mg / l was decolorized using the electrolyte tank 10 and the transport pump 15 to remove water.
4. When the decolorization tank 14 is filled with the synthetic dye waste liquid and the water in which the electrolyte is dissolved, the electrode pair 1 for electrolysis is used.
Electric power was supplied to power supplies 2 and 13 from a power supply 16 to generate functional water on the anode side 12. The electrolysis conditions were 1.5 A at 7 A.
Time. The conditions were pH 2.1, redox potential 1150 mV,
This is a condition for generating functional water having a residual chlorine concentration of 54 mg / l. The strongly acidic electrolyzed water generation unit was operated for 30 minutes.
【００２５】脱色処理槽１４の排出口１９から排出され
た処理廃水の色度をJIS K0101に従って測定したところ
２から４であり、そのまま放出して差し支えない程度ま
で脱色がおこなわれた。本装置により染料廃液の十分な
脱色ができることがわかった。The chromaticity of the treated wastewater discharged from the discharge port 19 of the decolorizing treatment tank 14 was measured according to JIS K0101, and was 2 to 4, indicating that the decolorization was performed to such an extent that it could be discharged as it was. It has been found that this apparatus can sufficiently decolorize the dye waste liquid.
【００２６】比較例１ 比較のため脱色槽内のイオン交換膜を破砕しイオン交換
膜の機能を失わせしめた以外は実施例１と同様の脱色装
置を用いて比較実験を行なった。排出された合成染料廃
液の処理廃水の色度はJIS K0101によれば20から37であ
った。この値はそのままでは放出することのできない色
度である。Comparative Example 1 For comparison, a comparative experiment was carried out using the same decoloring apparatus as in Example 1 except that the ion exchange membrane in the decolorization tank was crushed to lose the function of the ion exchange membrane. The chromaticity of the treated wastewater of the discharged synthetic dye waste liquid was 20 to 37 according to JIS K0101. This value is a chromaticity that cannot be emitted as it is.
【００２７】実施例２ 脱色装置によるインクジェット用インク、イエローの脱
色 実施例１の装置を用い陽極側で生成される機能水の調製
をおこなった。この機能水のpHおよび酸化還元電位をpH
メーター（（株）東興化学研究所、TCX-90iおよびKP900
-2N）および導電率メーター（（株）東興化学研究所、T
CX-90iおよびKM900-2N）で、また残留塩素濃度を塩素試
験紙（アドバンテック）により測定した。電解質である
塩化ナトリウムの濃度、電解電流値、電解時間などによ
ってこの機能水のpHは1.0〜4.0、酸化還元電位は800 mV
〜1500 mV、また残留塩素濃度は5 mg/l〜70 mg/lに変化
した。pH2.1、酸化還元電位1150 mV、残留塩素濃度54mg
/lの条件を実験に用いた。 Example 2 Decolorization of ink-jet ink and yellow by a decoloring apparatus
Color The functional water generated on the anode side was prepared using the apparatus of Example 1. The pH and redox potential of this functional water
Meter (Toko Chemical Laboratory, TCX-90i and KP900)
-2N) and conductivity meter (Toko Chemical Laboratory Co., Ltd., T
CX-90i and KM900-2N), and the residual chlorine concentration was measured with chlorine test paper (Advantech). The pH of this functional water is 1.0 to 4.0, and the oxidation-reduction potential is 800 mV, depending on the concentration of sodium chloride as the electrolyte, the electrolytic current value, and the electrolytic time.
11500 mV, and the residual chlorine concentration changed from 5 mg / l to 70 mg / l. pH 2.1, redox potential 1150 mV, residual chlorine concentration 54 mg
The / l condition was used for the experiment.
【００２８】イエローのインクジェット用インク（キヤ
ノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１Ｙ、
イエロー） １００ｐｐｍ溶液を本発明による装置の処
理槽１４の陽極側に供し脱色実験を行った。その後処理
液を分光光度計で測定した結果を図３に示す。本装置に
より染料の十分な脱色ができることがわかった。Yellow inkjet ink (BJ cartridge BJI-201Y manufactured by Canon Inc.,
(Yellow) A 100 ppm solution was supplied to the anode side of the processing tank 14 of the apparatus according to the present invention to perform a decolorization experiment. Thereafter, the results of measurement of the treatment liquid with a spectrophotometer are shown in FIG. It was found that this apparatus can sufficiently decolorize the dye.
【００２９】実施例３ 脱色装置によるインクジェット用インク、マゼンタの脱
色 実施例１．の装置を用い陽極側で生成される機能水の調
製をおこなった。この機能水のpHおよび酸化還元電位を
pHメーター（（株）東興化学研究所、TCX-90iおよびKP9
00-2N）および導電率メーター（（株）東興化学研究
所、TCX-90iおよびKM900-2N）で、また残留塩素濃度を
塩素試験紙（アドバンテック）により測定した。電解質
である塩化ナトリウムの濃度、電解電流値、電解時間な
どによってこの機能水のpHは1.0〜4.0、酸化還元電位は
800 mV〜1500 mV、また残留塩素濃度は5 mg/l〜70 mg/l
に変化した。pH2.1、酸化還元電位1150 mV、残留塩素濃
度54 mg/lの条件を実験に用いた。 Example 3 Decolorization of inkjet ink and magenta by a decolorizing apparatus
Color Example 1 The functional water generated on the anode side was prepared using the apparatus described above. PH and redox potential of this functional water
pH meter (Toko Chemical Laboratory, TCX-90i and KP9)
00-2N) and a conductivity meter (Toko Chemical Laboratory Co., Ltd., TCX-90i and KM900-2N), and the residual chlorine concentration was measured with chlorine test paper (Advantech). The pH of this functional water is 1.0 to 4.0 depending on the concentration of sodium chloride as the electrolyte, the electrolytic current value, the electrolytic time, etc., and the oxidation-reduction potential is
800 mV to 1500 mV, and residual chlorine concentration 5 mg / l to 70 mg / l
Changed to The conditions of pH 2.1, redox potential of 1150 mV, and residual chlorine concentration of 54 mg / l were used in the experiment.
【００３０】マゼンタのインクジェット用インク（キヤ
ノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１Ｍ、
マゼンタ） 60 ppm溶液を本発明による装置に供し脱色
実験を行った後の処理液を分光光度計で測定した結果を
図４に示す。本装置により染料の十分な脱色ができるこ
とがわかった。Magenta inkjet ink (BJ cartridge BJI-201M manufactured by Canon Inc.,
(Magenta) FIG. 4 shows the results obtained by subjecting the 60 ppm solution to the apparatus according to the present invention to perform a decolorization experiment and measuring the treatment liquid with a spectrophotometer. It was found that this apparatus can sufficiently decolorize the dye.
【００３１】実施例４ 脱色装置によるインクジェット用インク、ブラックの脱
色 実施例１．の装置を用い陽極側で生成される機能水の調
製をおこなった。この機能水のpHおよび酸化還元電位を
pHメーター（（株）東興化学研究所、TCX-90iおよびKP9
00-2N）および導電率メーター（（株）東興化学研究
所、TCX-90iおよびKM900-2N）で、また残留塩素濃度を
塩素試験紙（アドバンテック）により測定した。電解質
である塩化ナトリウムの濃度、電解電流値、電解時間な
どによってこの機能水のpHは1.0〜4.0、酸化還元電位は
800 mV〜1500 mV、また残留塩素濃度は5 mg/l〜70 mg/l
に変化した。pH2.1、酸化還元電位1150 mV、残留塩素濃
度54 mg/lの条件を実験に用いた。 Example 4 Removal of Ink for Ink and Black by Decoloring Apparatus
Color Example 1 The functional water generated on the anode side was prepared using the apparatus described above. PH and redox potential of this functional water
pH meter (Toko Chemical Laboratory, TCX-90i and KP9)
00-2N) and a conductivity meter (Toko Chemical Laboratory Co., Ltd., TCX-90i and KM900-2N), and the residual chlorine concentration was measured with chlorine test paper (Advantech). The pH of this functional water is 1.0 to 4.0 depending on the concentration of sodium chloride as the electrolyte, the electrolytic current value, the electrolytic time, etc., and the oxidation-reduction potential is
800 mV to 1500 mV, and residual chlorine concentration 5 mg / l to 70 mg / l
Changed to The conditions of pH 2.1, redox potential of 1150 mV, and residual chlorine concentration of 54 mg / l were used in the experiment.
【００３２】ブラックのインクジェット用インク（キヤ
ノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１Ｂ
ｋ、ブラック） 70 ppm溶液を本発明による装置に供し
脱色実験を行った後の処理液を分光光度計で測定した結
果を図５に示す。本装置により染料の十分な脱色ができ
ることがわかった。Black inkjet ink (BJ cartridge BJI-201B manufactured by Canon Inc.)
(k, black) FIG. 5 shows the results obtained by subjecting the 70 ppm solution to the apparatus according to the present invention to perform a decolorization experiment and measuring the treatment liquid with a spectrophotometer. It was found that this apparatus can sufficiently decolorize the dye.
【００３３】実施例５ 脱色装置によるインクジェット用インク、シアンの脱色 実施例１の装置を用い陽極側で生成される機能水の調製
をおこなった。この機能水のpHおよび酸化還元電位をpH
メーター（（株）東興化学研究所、TCX-90iおよびKP900
-2N）および導電率メーター（（株）東興化学研究所、T
CX-90iおよびKM900-2N）で、また残留塩素濃度を塩素試
験紙（アドバンテック）により測定した。電解質である
塩化ナトリウムの濃度、電解電流値、電解時間などによ
ってこの機能水のpHは1.0〜4.0、酸化還元電位は800 mV
〜1500 mV、また残留塩素濃度は5 mg/l〜70 mg/lに変化
した。pH2.1、酸化還元電位1150 mV、残留塩素濃度54mg
/lの条件を実験に用いた。シアンのインクジェット用イ
ンク（キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−
２０１Ｃ、シアン） 80 ppm溶液を本発明による装置に
供し脱色実験を行った後の処理液を分光光度計で測定し
た結果を図６に示す。本装置により染料の十分な脱色が
できることがわかった。 Example 5 Decolorization of Ink Jet Ink and Cyan by Decoloring Apparatus Using the apparatus of Example 1, functional water generated on the anode side was prepared. The pH and redox potential of this functional water
Meter (Toko Chemical Laboratory, TCX-90i and KP900)
-2N) and conductivity meter (Toko Chemical Laboratory Co., Ltd., T
CX-90i and KM900-2N), and the residual chlorine concentration was measured with chlorine test paper (Advantech). The pH of this functional water is 1.0 to 4.0, and the oxidation-reduction potential is 800 mV, depending on the concentration of sodium chloride as the electrolyte, the electrolytic current value, and the electrolytic time.
11500 mV, and the residual chlorine concentration changed from 5 mg / l to 70 mg / l. pH 2.1, redox potential 1150 mV, residual chlorine concentration 54 mg
The / l condition was used for the experiment. Cyan inkjet ink (BJ Cartridge / BJI- manufactured by Canon Inc.)
FIG. 6 shows the results of measuring the treatment liquid after spectrophotometry with the 80 ppm solution (201C, cyan) applied to the apparatus according to the present invention and performing a decolorization experiment. It was found that this apparatus can sufficiently decolorize the dye.
【００３４】実施例６ インクジェット用インクの脱色 実施例１の装置を用い陽極側で生成される機能水の調製
をおこなった。この機能水のpHおよび酸化還元電位をpH
メーター（（株）東興化学研究所、TCX-90iおよびKP900
-2N）および導電率メーター（（株）東興化学研究所、T
CX-90iおよびKM900-2N）で、また残留塩素濃度を塩素試
験紙（アドバンテック）により測定した。電解質である
塩化ナトリウムの濃度、電解電流値、電解時間などによ
ってこの機能水のpHは1.0〜4.0、酸化還元電位は800 mV
〜1500 mV、また残留塩素濃度は5 mg/l〜70 mg/lに変化
した。pH2.1、酸化還元電位1150 mV、残留塩素濃度54mg
/lの機能水を実験に供した。 Example 6 Decolorization of Ink Jet Ink Using the apparatus of Example 1, functional water generated on the anode side was prepared. The pH and redox potential of this functional water
Meter (Toko Chemical Laboratory, TCX-90i and KP900)
-2N) and conductivity meter (Toko Chemical Laboratory Co., Ltd., T
CX-90i and KM900-2N), and the residual chlorine concentration was measured with chlorine test paper (Advantech). The pH of this functional water is 1.0 to 4.0, and the oxidation-reduction potential is 800 mV, depending on the concentration of sodium chloride as the electrolyte, the electrolytic current value, and the electrolytic time.
11500 mV, and the residual chlorine concentration changed from 5 mg / l to 70 mg / l. pH 2.1, redox potential 1150 mV, residual chlorine concentration 54 mg
/ l of functional water was subjected to the experiment.
【００３５】ガラスバイアル瓶（27.5ml容）に陽極側で
生成された機能水を12 ml入れ、これに以下の濃度のイ
ンクジェット用インク溶液をそれぞれ2.0mlづつ加え20
mlとし、15 ℃、120 rpmで30分間振とうした。In a glass vial (27.5 ml capacity), 12 ml of functional water generated on the anode side was added, and 2.0 ml of each of the following ink jet ink solutions having the following concentrations was added thereto.
ml and shaken at 15 ° C and 120 rpm for 30 minutes.
【００３６】キヤノン株式会社製ＢＪカートリッジ・Ｂ
ＪＩ−２０１Ｂｋ、ブラック・・・ ７００ ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｙ、イエロー・・・ １０００ ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｍ、マゼンタ・・・ １０００ ppm キヤノン株式会社製ＢＪカートリッジ・ＢＪＩ−２０１
Ｃ、シアン・・・ １０００ ppmBJ cartridge B manufactured by Canon Inc.
JI-201Bk, black: 700 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
Y, yellow: 1000 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
M, magenta ... 1000 ppm BJ cartridge, BJI-201 manufactured by Canon Inc.
C, cyan ... 1000 ppm
【００３７】純水を用いて同様に試料を作成しておこな
った対照実験では色素の脱色は観測されず、機能水を含
む溶液は処理後殆ど無色になり本発明の有効性が確かめ
られた。In a control experiment in which a sample was similarly prepared using pure water, no decolorization of the dye was observed, and the solution containing functional water became almost colorless after the treatment, confirming the effectiveness of the present invention.
【００３８】[0038]
【発明の効果】本発明により、経済的かつ安全で安定し
た染料及び染色工業廃水の脱色が可能となった。Industrial Applicability According to the present invention, it is possible to economically, safely and stably decolorize dye and dyeing industrial wastewater.
【図１】本発明による染料及び染色工業廃水の脱色装置
の基本構成を示す概略構成図FIG. 1 is a schematic configuration diagram showing a basic configuration of a decolorizing apparatus for dye and dyeing industrial wastewater according to the present invention.
【図２】本発明による染料及び染色工業廃水の脱色装置
の他の基本構成を示す概略構成図FIG. 2 is a schematic configuration diagram showing another basic configuration of a decoloring apparatus for dye and dyeing industrial wastewater according to the present invention.
【図３】脱色装置によるインクジェット用インク、イエ
ローの脱色を示す図FIG. 3 is a diagram showing decolorization of an inkjet ink and yellow by a decoloring apparatus.
【図４】脱色装置によるインクジェット用インク、マゼ
ンタの脱色を示す図FIG. 4 is a diagram showing decolorization of an inkjet ink and magenta by a decoloring apparatus.
【図５】脱色装置によるインクジェット用インク、ブラ
ックの脱色を示す図FIG. 5 is a diagram showing decolorization of an inkjet ink and black by a decoloring apparatus.
【図６】脱色装置によるインクジェット用インク、シア
ンの脱色を示す図FIG. 6 is a diagram showing decolorization of an inkjet ink and cyan by a decoloring apparatus.
１０ 電解質水溶液貯蔵タンク １１ イオン交換膜 １２ 陽極 １３ 陰極 １４ 処理槽 １５ ポンプ １６ 電源 １７ 被処理液供給装置 １８ 排水タンク １９ 排水口 ２０ 攪拌手段 ２１ 機能水生成手段 ２２ 脱色処理槽 ２３ ポンプ ２４ 被処理水貯蔵タンク DESCRIPTION OF SYMBOLS 10 Electrolyte aqueous solution storage tank 11 Ion exchange membrane 12 Anode 13 Cathode 14 Processing tank 15 Pump 16 Power supply 17 Liquid supply device 18 Drain tank 19 Drain outlet 20 Stirrer 21 Functional water generator 22 Decolorization tank 23 Pump 24 Water to be treated Storage tank
───────────────────────────────────────────────────── フロントページの続き (72)発明者 今村 剛士 東京都大田区下丸子３丁目30番２号キヤノ ン株式会社内 (72)発明者 桜永 昌徳 東京都大田区下丸子３丁目30番２号キヤノ ン株式会社内 (72)発明者 栗山 朗 東京都大田区下丸子３丁目30番２号キヤノ ン株式会社内 (72)発明者 須川 悦子 東京都大田区下丸子３丁目30番２号キヤノ ン株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Imamura 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Masanori Sakuranaga 3-30-2 Shimomaruko, Ota-ku, Tokyo (72) Inventor: Akira Kuriyama, 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor: Etsuko Sugawa 3-2-2, Shimomaruko, Ota-ku, Tokyo Canon Inc.
Claims (11)
電源、及び該電極間に分離膜を有する処理槽を用意する
工程；及び該処理槽に電解質を溶解させた着色溶液を導
入し、該電極間に電圧を印加して該着色溶液を電気分解
する工程、を有することを特徴とする着色溶液の処理方
法。A step of preparing a processing tank having a pair of electrodes, a power supply for applying a voltage between the electrodes, and a separation membrane between the electrodes; and introducing a coloring solution in which an electrolyte is dissolved into the processing tank. Applying a voltage between the electrodes to electrolyze the coloring solution.
である請求項１記載の処理方法。2. The method according to claim 1, wherein the separation membrane is an ion exchange membrane or a microporous membrane.
させるものである請求項１記載の処理方法。3. The method according to claim 1, wherein said electrolysis generates functional water near the anode.
て、陽極近傍に生成する機能水と染料溶液とを接触させ
る工程を有することを特徴とする染料溶液の処理方法。4. A method for treating a dye solution, comprising a step of bringing functional water generated near an anode into contact with a dye solution by electrolysis of water in which an electrolyte is dissolved.
１〜４、酸化還元電位（作用電極：プラチナ電極、参照
電極：銀−塩化銀電極）が８００ｍＶ〜１５００ｍＶ、
かつ塩素濃度が５ｍｇ／リットル〜１５０ｍｇ／リット
ルである請求項３または４記載の処理方法。5. The functional water has a hydrogen ion concentration (pH value) of 1 to 4, an oxidation-reduction potential (working electrode: platinum electrode, reference electrode: silver-silver chloride electrode) of 800 mV to 1500 mV,
The method according to claim 3, wherein the chlorine concentration is 5 mg / liter to 150 mg / liter.
る請求項１記載の処理方法。6. The processing method according to claim 1, wherein the coloring solution is introduced to the anode side of the processing tank.
する処理槽、該電極対に電力を供給する手段、電解質を
溶解した水を該処理槽に供給する手段、及び着色溶液を
該処理槽の陽極側に供給する手段を有することを特徴と
する着色溶液の処理装置。7. A treatment tank having an electrode pair for electrolysis via a separation membrane, means for supplying power to the electrode pair, means for supplying water in which an electrolyte is dissolved to the treatment tank, and a coloring solution. An apparatus for treating a colored solution, comprising: means for supplying the solution to the anode side of the treatment tank.
である請求項７記載の処理装置。8. The processing apparatus according to claim 7, wherein the separation membrane is an ion exchange membrane or a microporous membrane.
状が、該電極対による電気分解により、水素イオン濃度
（pH値）が１〜４、酸化還元電位（作用電極：プラチナ
電極、参照電極：銀−塩化銀電極）が８００ｍＶ〜１５
００ｍＶ、かつ残留塩素濃度が5ｍｇ/リットル〜１５０
ｍｇ/リットルである請求項７または８記載の処理装
置。9. The property of the aqueous solution on the anode side in the treatment tank is such that the electrode pair has a hydrogen ion concentration (pH value) of 1 to 4 and an oxidation-reduction potential (working electrode: platinum electrode, reference electrode : Silver-silver chloride electrode) is 800 mV to 15
00 mV, and residual chlorine concentration of 5 mg / liter to 150
9. The processing apparatus according to claim 7, wherein the amount is mg / liter.
素イオン濃度（pH値）が１以上４以下、酸化還元電位
（作用電極：プラチナ電極、参照電極：銀−塩化銀電
極）が８００ mV以上１５００ mV以下、かつ残留塩素濃
度が５ mg/l以上１５０mg/l以下である機能水を処理槽
に導入する手段；及び該染料を含む水を処理槽に導入す
る手段、を有することを特徴とする染料を含む水の脱色
装置。10. An apparatus for decolorizing water containing a dye, wherein the hydrogen ion concentration (pH value) is 1 or more and 4 or less, and the oxidation-reduction potential (working electrode: platinum electrode, reference electrode: silver-silver chloride electrode) is 800. a means for introducing functional water having a residual chlorine concentration of 5 mg / l or more and 150 mg / l or less into the treatment tank; and a means for introducing water containing the dye into the treatment tank. A decolorizer for water containing a dye.
液の電気分解する手段を更に有する請求項１０記載の脱
色装置。11. The decoloring apparatus according to claim 10, further comprising means for electrolyzing an aqueous electrolyte solution for producing said functional water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35502097A JPH11179365A (en) | 1997-12-24 | 1997-12-24 | Method and apparatus for treating colored solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35502097A JPH11179365A (en) | 1997-12-24 | 1997-12-24 | Method and apparatus for treating colored solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11179365A true JPH11179365A (en) | 1999-07-06 |
Family
ID=18441437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35502097A Withdrawn JPH11179365A (en) | 1997-12-24 | 1997-12-24 | Method and apparatus for treating colored solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11179365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398446B1 (en) * | 2000-09-21 | 2003-09-19 | 다카하시 긴조쿠 가부시키가이샤 | Soluble oil type cutting fluids which is mixed with ionize water, and the producing contrivance |
| KR100708618B1 (en) | 2005-12-28 | 2007-04-18 | 제주대학교 산학협력단 | Treatment apparatus of dyeing wastewater by using electrical discharge to wastewater surface |
| JP2008529769A (en) * | 2005-02-11 | 2008-08-07 | ダイスター・テクスティルファルベン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・ドイッチュラント・コマンデイトゲゼルシャフト | Electrochemical decolorization of indigo from aqueous dispersions. |
-
1997
- 1997-12-24 JP JP35502097A patent/JPH11179365A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398446B1 (en) * | 2000-09-21 | 2003-09-19 | 다카하시 긴조쿠 가부시키가이샤 | Soluble oil type cutting fluids which is mixed with ionize water, and the producing contrivance |
| JP2008529769A (en) * | 2005-02-11 | 2008-08-07 | ダイスター・テクスティルファルベン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・ドイッチュラント・コマンデイトゲゼルシャフト | Electrochemical decolorization of indigo from aqueous dispersions. |
| KR100708618B1 (en) | 2005-12-28 | 2007-04-18 | 제주대학교 산학협력단 | Treatment apparatus of dyeing wastewater by using electrical discharge to wastewater surface |
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| A300 | Withdrawal of application because of no request for examination |
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