JPH08164389A - Ink waste liquid treatment method - Google Patents
Ink waste liquid treatment methodInfo
- Publication number
- JPH08164389A JPH08164389A JP30897894A JP30897894A JPH08164389A JP H08164389 A JPH08164389 A JP H08164389A JP 30897894 A JP30897894 A JP 30897894A JP 30897894 A JP30897894 A JP 30897894A JP H08164389 A JPH08164389 A JP H08164389A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- reverse osmosis
- osmosis membrane
- liquid
- ink waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 239000002699 waste material Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 18
- 239000012528 membrane Substances 0.000 claims abstract description 31
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 31
- 239000012466 permeate Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 239000000701 coagulant Substances 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 5
- 239000002244 precipitate Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 238000004062 sedimentation Methods 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 4
- 239000006103 coloring component Substances 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 238000005345 coagulation Methods 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 7
- 239000011550 stock solution Substances 0.000 description 7
- 238000004042 decolorization Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000004931 aggregating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 230000004520 agglutination Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
(57)【要約】
【目的】 濃厚インキ廃液を希釈することなくそのまま
効率的に脱色処理する。
【構成】 インキ廃液を高塩除去率の逆浸透膜と接触さ
せて透過液と濃縮液とに分け、該濃縮液に凝集剤を添加
して沈殿物と上澄水とに分離する。
【効果】 高塩除去率の逆浸透膜により、インキ廃液中
の着色成分が確実に阻止され、高水質の透過液が得られ
る。一方、濃縮液を凝集沈殿処理することにより、逆浸
透膜で濃縮された着色成分を汚泥として効率的に分離す
ることができる。濃厚なインキ廃液であっても希釈する
ことなく、直接脱色処理に供することができ、透明度の
高い高水質の処理水を効率的に得ることができる。
(57) [Summary] [Purpose] Efficiently decolorize concentrated ink waste liquid without diluting it. [Structure] An ink waste liquid is brought into contact with a reverse osmosis membrane having a high salt removal rate to separate a permeated liquid and a concentrated liquid, and a coagulant is added to the concentrated liquid to separate a precipitate and a supernatant water. [Effect] The reverse osmosis membrane with a high salt removal rate surely blocks the coloring components in the waste liquid of the ink, and a permeate of high water quality is obtained. On the other hand, by subjecting the concentrated liquid to coagulation-sedimentation treatment, the colored components concentrated by the reverse osmosis membrane can be efficiently separated as sludge. Even a thick ink waste liquid can be directly subjected to a decolorizing treatment without being diluted, and highly treated treated water of high water quality can be efficiently obtained.
Description
【０００１】[0001]
【産業上の利用分野】本発明はインキ廃液の処理方法に
係り、特に、半導体製造関連のインキパッケージ製造工
程等から排出される濃厚インキ廃液を逆浸透膜分離装置
と凝集沈殿装置とを用いて効率的に脱色処理する方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating an ink waste liquid, and more particularly, to a concentrated ink waste liquid discharged from a semiconductor manufacturing-related ink package manufacturing process, etc. by using a reverse osmosis membrane separation device and a coagulating sedimentation device. The present invention relates to a method for efficiently decolorizing.
【０００２】[0002]
【従来の技術】半導体製造関連のインキパッケージ製造
工程等からは、濃厚なインキ廃液が排出される。2. Description of the Related Art Thick ink waste liquid is discharged from an ink package manufacturing process related to semiconductor manufacturing.
【０００３】従来、希薄インキ廃液の処理としては、凝
集沈殿濾過及び活性炭吸着法による脱色処理が行われて
いる。Conventionally, as a treatment of a diluted ink waste liquid, a coagulation sedimentation filtration and a decolorization treatment by an activated carbon adsorption method have been carried out.
【０００４】しかしながら、濃厚なインキ廃液について
は、このような方法では十分に脱色処理することができ
ず、多くの場合、濃厚インキ廃液を希釈して低濃度イン
キ廃液とした後、上記脱色処理を行っている。However, a concentrated ink waste liquid cannot be sufficiently decolorized by such a method, and in many cases, the concentrated ink waste liquid is diluted to a low-concentration ink waste liquid and then the above decolorization treatment is performed. Is going.
【０００５】なお、濃度や排出量等の条件によっては、
産業廃棄物として、工場内又は工場外で処理される場合
もあるが、この場合には、当然のことながら、多大な処
分費がかかる。Incidentally, depending on the conditions such as the concentration and the discharge amount,
Although it may be processed as industrial waste inside or outside the factory, in this case, of course, a great disposal cost is required.
【０００６】[0006]
【発明が解決しようとする課題】従来の濃厚インキ廃液
の脱色処理では、濃厚インキ廃液の希釈を行う必要があ
るため、工程数、設備設置スペース、処理コスト等の面
で工業的に不利である。In the conventional decolorization treatment of the concentrated ink waste liquid, it is necessary to dilute the concentrated ink waste liquid, which is industrially disadvantageous in terms of the number of steps, equipment installation space, processing cost and the like. .
【０００７】本発明は上記従来の問題点を解決し、濃厚
インキ廃液を希釈することなくそのまま効率的に脱色処
理することができるインキ廃液の処理方法を提供するこ
とを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and provide a method for treating an ink waste liquid which enables efficient decolorization treatment without diluting a concentrated ink waste liquid.
【０００８】[0008]
【課題を解決するための手段】本発明のインキ廃液の処
理方法は、インキ廃液を高塩除去率の逆浸透膜と接触さ
せて透過液と濃縮液とに分け、該濃縮液に凝集剤を添加
して沈殿物と上澄水とに分離することを特徴とする。According to the method for treating an ink waste liquid of the present invention, the ink waste liquid is brought into contact with a reverse osmosis membrane having a high salt removal rate to separate it into a permeate and a concentrate, and a coagulant is added to the concentrate. It is characterized by adding and separating into a precipitate and supernatant water.
【０００９】以下、図面を参照して本発明を詳細に説明
する。The present invention will be described in detail below with reference to the drawings.
【００１０】図１は本発明のインキ廃液の処理方法の一
実施例方法を示す系統図である。FIG. 1 is a system diagram showing a method of an embodiment of a method for treating an ink waste liquid according to the present invention.
【００１１】図中、１は原液（インキ廃液）槽、２は高
塩除去率の逆浸透膜２Ａを備える逆浸透膜分離装置、３
は処理水（透過液）槽、４は凝集反応槽、５は沈殿槽で
あり、１１〜１９の各符号は配管を示す。２１はポン
プ、２２，２３，２４はバルブ、２５は撹拌機である。In the figure, 1 is a stock solution (ink waste solution) tank, 2 is a reverse osmosis membrane separation device equipped with a high salt removal rate reverse osmosis membrane 2A, 3
Is a treated water (permeate) tank, 4 is a coagulation reaction tank, 5 is a precipitation tank, and each symbol 11 to 19 represents a pipe. Reference numeral 21 is a pump, 22, 23 and 24 are valves, and 25 is an agitator.
【００１２】本実施例の方法においては、原液槽１内の
インキ廃液を、循環ポンプ２１を備える配管１１により
逆浸透膜分離装置２に循環通液し、透過液を連続的に得
る。即ち、原液槽１内のインキ廃液は配管１１より逆浸
透膜分離装置２に供給して逆浸透膜分離し、透過液を配
管１２より取り出し、処理水槽３に受ける。逆浸透膜分
離装置２の濃縮液は配管１３より抜き出す。濃縮液は、
必要に応じてその一部を配管１５より直接原液槽１に返
送し、残部は配管１４より凝集反応槽に送給する。凝集
反応槽４においては、配管１６より濃縮液に凝集剤を添
加して凝集反応を行う。この凝集反応液は配管１７より
沈殿槽５に送給される。沈殿槽５において沈降分離され
た汚泥は、配管１８より系外へ抜き出される。一方、上
澄液は配管１９より原液槽１に返送される。In the method of this embodiment, the waste ink in the stock solution tank 1 is circulated through the reverse osmosis membrane separation device 2 through the pipe 11 equipped with the circulation pump 21 to continuously obtain the permeated liquid. That is, the waste ink in the stock solution tank 1 is supplied from the pipe 11 to the reverse osmosis membrane separation device 2 for reverse osmosis membrane separation, and the permeated liquid is taken out from the pipe 12 and received by the treated water tank 3. The concentrated liquid of the reverse osmosis membrane separation device 2 is extracted from the pipe 13. The concentrate is
If necessary, part of it is returned directly to the stock solution tank 1 through the pipe 15, and the rest is sent to the coagulation reaction tank through the pipe 14. In the agglutination reaction tank 4, an aggregating agent is added to the concentrated liquid through the pipe 16 to carry out an agglutination reaction. This aggregation reaction liquid is sent to the settling tank 5 through the pipe 17. The sludge settled and separated in the settling tank 5 is extracted from the system through the pipe 18. On the other hand, the supernatant liquid is returned to the stock solution tank 1 through the pipe 19.
【００１３】このような処理によれば、逆浸透膜分離装
置２により、インキ廃液中の着色成分が確実に阻止さ
れ、無色透明の高水質透過液が処理水として得られると
共に、逆浸透膜分離装置２で濃縮された着色成分は凝集
反応槽４にて効率的に凝集処理され、沈殿槽５におい
て、汚泥として系外に効率的に排出される。According to such a treatment, the reverse osmosis membrane separation device 2 surely blocks the coloring component in the ink waste liquid, a colorless and transparent high water quality permeate is obtained as treated water, and the reverse osmosis membrane separation is performed. The colored component concentrated in the device 2 is efficiently coagulated in the coagulation reaction tank 4, and is efficiently discharged as a sludge out of the system in the settling tank 5.
【００１４】このような本発明のインキ廃液の処理方法
において使用される高塩除去率の逆浸透膜としては、例
えば、ＮａＣｌ阻止率９９％以上の逆浸透膜分離特性を
有するものが好ましい。なお、逆浸透膜の材質としては
特に制限はなく、ポリアミド系、酢酸ビニル系、ポリス
ルホン系等の逆浸透膜を使用することができる。As the reverse osmosis membrane having a high salt removal rate used in the method for treating an ink waste liquid according to the present invention, for example, a reverse osmosis membrane separation characteristic having a NaCl rejection rate of 99% or more is preferable. The material of the reverse osmosis membrane is not particularly limited, and a polyamide, vinyl acetate, polysulfone, or other reverse osmosis membrane can be used.
【００１５】一方、凝集反応に用いる凝集剤としては、
塩化マグネシウム（ＭｇＣｌ2 ），硫酸第一鉄（ＦｅＳ
Ｏ4 ），塩化第二鉄（ＦｅＣｌ3 ）等の無機凝集剤が好
ましく、その添加量は処理するインキ廃液の濃度にもよ
るが、通常の場合、１０００〜２００００ｍｇ／ｌ程度
とされる。凝集反応は、添加する凝集剤の特性に応じた
ｐＨ値に調整して行うことが重要であり、通常の場合、
ｐＨ６〜１２の範囲となるように、必要に応じてアルカ
リ等のｐＨ調整剤を適宜添加する。On the other hand, as the aggregating agent used in the aggregating reaction,
Magnesium chloride (MgCl 2 ), ferrous sulfate (FeS
O 4 ), ferric chloride (FeCl 3 ), and other inorganic coagulants are preferable, and the amount thereof is usually about 1000 to 20000 mg / l, although it depends on the concentration of the ink waste liquid to be treated. It is important that the agglutination reaction is carried out by adjusting the pH value according to the characteristics of the aggregating agent to be added.
If necessary, a pH adjuster such as alkali is appropriately added so that the pH is in the range of 6 to 12.
【００１６】本発明のインキ廃液の処理方法は、特に、
パソコン用プリンターに使用される粒子径５０μｍ以下
の超微粒インキ粒子を含む、色度１００００以上、ＣＯ
ＤMn５０００ｍｇ／ｌ以上の濃厚インキ廃液の処理に有
効であるが、何らこれに限定されるものではない。The method for treating ink waste liquid according to the present invention is particularly
Includes ultrafine ink particles with a particle size of 50 μm or less used in a personal computer printer, chromaticity of 10,000 or more, CO
It is effective for treating a concentrated ink waste liquid having D Mn of 5000 mg / l or more, but is not limited to this.
【００１７】[0017]
【作用】高塩除去率の逆浸透膜により、インキ廃液中の
着色成分が確実に阻止され、高水質の透過液が得られ
る。一方、濃縮液を凝集沈殿処理することにより、逆浸
透膜で濃縮された着色成分を汚泥として効率的に分離す
ることができる。By the reverse osmosis membrane having a high salt removal rate, the colored components in the ink waste liquid are reliably prevented, and the permeated liquid of high water quality is obtained. On the other hand, by subjecting the concentrated liquid to coagulation-sedimentation treatment, the colored components concentrated by the reverse osmosis membrane can be efficiently separated as sludge.
【００１８】[0018]
【実施例】以下に実施例、比較例及び参考例を挙げて本
発明をより具体的に説明する。EXAMPLES The present invention will be described more specifically with reference to Examples, Comparative Examples and Reference Examples below.
【００１９】実施例１ 図１に示す本発明の方法に従って、インキ廃液（色：暗
紫色，ＣＯＤMn：１４３００ｍｇ／ｌ）の処理を行っ
た。Example 1 Ink waste liquid (color: dark purple, COD Mn : 14300 mg / l) was treated according to the method of the present invention shown in FIG.
【００２０】なお、逆浸透膜分離装置の逆浸透膜として
は、ＮａＣｌ阻止率９９．５％のポリアミド系逆浸透膜
（栗田工業（株）社製「ＫＲＯＡ−９８−ＨＮ」）を用
い、操作圧力１５ｋｇｆ／ｃｍ2 で逆浸透膜分離を行っ
た。また、凝集反応槽においては、凝集剤としてＦｅＳ
Ｏ4 を２００００ｍｇ／ｌ添加し、ｐＨ１０〜１０．５
で処理を行った。As the reverse osmosis membrane of the reverse osmosis membrane separator, a polyamide reverse osmosis membrane (“KROA-98-HN” manufactured by Kurita Industry Co., Ltd.) with a NaCl rejection rate of 99.5% was used. Reverse osmosis membrane separation was performed at a pressure of 15 kgf / cm 2 . Further, in the coagulation reaction tank, FeS is used as the coagulant.
O 4 added 20000 mg / l, pH 10-10.5
It was processed in.
【００２１】得られた処理水（透過液）の色度（波長４
５０ｎｍの吸光度）及びＣＯＤMnを測定すると共に、外
観を観察し、結果を表１に示した。Chromaticity of the resulting treated water (permeate) (wavelength 4
Absorbance at 50 nm) and COD Mn were measured, and the appearance was observed. The results are shown in Table 1.
【００２２】比較例１ 実施例１で処理したものと同水質のインキ廃液をビーカ
ーに入れて加熱蒸発させ、蒸気を凝縮させた。得られた
凝集水の色度，ＣＯＤMn，外観を表１に示した。Comparative Example 1 An ink waste liquid having the same water quality as that treated in Example 1 was placed in a beaker, heated and evaporated to condense the vapor. The chromaticity, COD Mn , and appearance of the obtained coagulated water are shown in Table 1.
【００２３】比較例２〜４ 実施例１で処理したものと同水質のインキ廃液を、凝集
剤として表１に示すものを用い、表１に示す凝集条件で
直接凝集沈殿処理し、得られた上澄液の色度、ＣＯ
ＤMn，外観を表１に示した。Comparative Examples 2 to 4 The ink waste liquid having the same water quality as that treated in Example 1 was directly subjected to coagulation-sedimentation treatment under the coagulation conditions shown in Table 1 using the coagulant shown in Table 1. Color of supernatant, CO
The appearance of D Mn is shown in Table 1.
【００２４】表１より、本発明の方法によれば、濃厚イ
ンキ廃液であっても希釈を行うことなく直接処理して、
透明度の高い高水質処理水を得ることができることが明
らかである。From Table 1, according to the method of the present invention, even the concentrated ink waste liquid is directly treated without being diluted,
It is clear that high-quality treated water with high transparency can be obtained.
【００２５】[0025]
【表１】 [Table 1]
【００２６】参考例１ 実施例１で処理したものと同水質のインキ廃液を、逆浸
透膜としてＮａＣｌ阻止率９２％のポリアミド系逆浸透
膜（日東電工社製「ＮＴＲ−７２９ＨＦ」）を用い、操
作圧力１５ｋｇｆ／ｃｍ2 で逆浸透膜分離処理したとこ
ろ、得られた透過液の色度は２３９であり、十分な脱色
がなされないことが確認された。Reference Example 1 An ink waste liquid having the same water quality as that treated in Example 1 was used as a reverse osmosis membrane, using a polyamide reverse osmosis membrane (“NTR-729HF” manufactured by Nitto Denko Corporation) having a NaCl blocking rate of 92%. When the reverse osmosis membrane separation treatment was performed at an operating pressure of 15 kgf / cm 2 , the chromaticity of the obtained permeate was 239, and it was confirmed that sufficient decolorization was not performed.
【００２７】参考例２ 実施例１で処理したものと同水質のインキ廃液を、逆浸
透膜としてＮａＣｌ阻止率１０％のポリアミド系逆浸透
膜（日東電工社製「ＮＴＲ−７４１０」）を用い、操作
圧力１０ｋｇｆ／ｃｍ2 で逆浸透膜分離処理したとこ
ろ、得られた透過液は原液とほぼ同等の暗紫色を呈し、
殆ど脱色はなされなかった。Reference Example 2 An ink waste liquid having the same water quality as that treated in Example 1 was used as a reverse osmosis membrane using a polyamide reverse osmosis membrane (NTR-7410 manufactured by Nitto Denko Corporation) with a NaCl rejection of 10%. When the reverse osmosis membrane separation treatment was performed at an operating pressure of 10 kgf / cm 2 , the obtained permeated liquid exhibited a dark purple color almost equal to that of the stock solution,
Almost no bleaching was done.
【００２８】[0028]
【発明の効果】以上詳述した通り、本発明のインキ廃液
の処理方法によれば、濃厚なインキ廃液であっても希釈
することなく、直接脱色処理に供することができ、透明
度の高い高水質の処理水を効率的に得ることができる。As described in detail above, according to the method for treating an ink waste liquid of the present invention, even a thick ink waste liquid can be directly subjected to a decoloring treatment without being diluted, and high water quality with high transparency can be obtained. The treated water can be efficiently obtained.
【図１】本発明のインキ廃液の処理方法の一実施例方法
を示す系統図である。FIG. 1 is a system diagram showing an example method of an ink waste liquid treatment method according to the present invention.
１ 原液槽 ２ 逆浸透膜分離装置 ３ 処理水槽 ４ 凝集反応槽 ５ 沈殿槽 1 stock solution tank 2 reverse osmosis membrane separation device 3 treated water tank 4 coagulation reaction tank 5 precipitation tank
Claims (1)
触させて透過液と濃縮液とに分け、該濃縮液に凝集剤を
添加して沈殿物と上澄水とに分離することを特徴とする
インキ廃液の処理方法。1. An ink waste liquid is brought into contact with a reverse osmosis membrane having a high salt removal rate to separate a permeate liquid and a concentrated liquid, and a coagulant is added to the concentrated liquid to separate a precipitate and a supernatant liquid. A characteristic method for treating ink waste liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30897894A JPH08164389A (en) | 1994-12-13 | 1994-12-13 | Ink waste liquid treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30897894A JPH08164389A (en) | 1994-12-13 | 1994-12-13 | Ink waste liquid treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08164389A true JPH08164389A (en) | 1996-06-25 |
Family
ID=17987502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30897894A Pending JPH08164389A (en) | 1994-12-13 | 1994-12-13 | Ink waste liquid treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08164389A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273424A (en) * | 2001-03-21 | 2002-09-24 | Toray Ind Inc | Equipment and method for treating dye waste liquid |
| JP2008137008A (en) * | 2008-01-09 | 2008-06-19 | Japan Organo Co Ltd | Method and apparatus for treating ink waste liquid |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
-
1994
- 1994-12-13 JP JP30897894A patent/JPH08164389A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002273424A (en) * | 2001-03-21 | 2002-09-24 | Toray Ind Inc | Equipment and method for treating dye waste liquid |
| JP2008137008A (en) * | 2008-01-09 | 2008-06-19 | Japan Organo Co Ltd | Method and apparatus for treating ink waste liquid |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
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