WO2013015163A1 - 排水の処理方法 - Google Patents
排水の処理方法 Download PDFInfo
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- WO2013015163A1 WO2013015163A1 PCT/JP2012/068151 JP2012068151W WO2013015163A1 WO 2013015163 A1 WO2013015163 A1 WO 2013015163A1 JP 2012068151 W JP2012068151 W JP 2012068151W WO 2013015163 A1 WO2013015163 A1 WO 2013015163A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wastewater
- aluminum
- etching
- copper
- color filter
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Definitions
- the present invention relates to a wastewater treatment method, and more particularly to a method for treating color filter wastewater or copper etching wastewater with aluminum etching wastewater.
- Color filters used in television receivers and OA display devices generally have a light-shielding layer made of a resist agent containing metallic chromium (Cr) or a black pigment on a transparent substrate made of glass or the like by photolithography.
- a transparent colored layer is formed on the light shielding layer, and a transparent conductive film and an alignment film are sequentially laminated on the colored layer.
- a transparent protective film may be formed between the colored layer and the transparent conductive film.
- a glass substrate is subjected to a cleaning treatment as necessary, followed by application of a photoresist by a coating apparatus, A pre-drying process using a vacuum drying apparatus, a pre-baking process using a pre-baking apparatus, a pattern exposure using an exposure apparatus, a developing process using a developing apparatus, and a post-baking process using a post-baking apparatus are sequentially performed to form a predetermined pattern on the glass substrate.
- Patent Document 1 as a waste water treatment method for treating waste water from a color filter manufacturing apparatus, after separating a pigment component, ozone is injected to remove an organic component, and then a reverse osmosis membrane separation treatment is performed, followed by biological treatment. It is described to do.
- a printed wiring board is manufactured by etching a metal-clad laminate laminated with metal foil or a plated substrate using an etching solution.
- the metal is aluminum, hydrochloric acid or the like is used as the etching solution.
- the etchant When etching a metal-clad laminate laminated with a metal foil such as copper or a printed wiring board that has been plated in advance such as electroless copper plating using an etchant, the etchant contains cupric chloride. An etchant or an etchant containing sulfuric acid and hydrogen peroxide is used.
- Patent Document 2 describes that after wastewater is distilled and concentrated to distill acid other than phosphoric acid, phosphoric acid is crystallized and aluminum is separated and recovered as an aqueous solution. Has been.
- Patent Document 3 paragraph 0004 discloses a method in which sodium hydroxide is added to copper etching wastewater to precipitate and remove it as a hydroxide, but it is described that a large amount of sludge is generated.
- Patent Document 4 describes that after rare earth elements are added to copper etching wastewater, alkali is added to precipitate and separate copper.
- Patent Document 5 describes that a photoresist-containing wastewater containing copper is first adjusted to acidity to insolubilize the photoresist, and then adjusted to pH 8 to 9 to precipitate and separate copper as copper hydroxide. ing.
- color filter wastewater or copper etching wastewater and aluminum etching wastewater are mixed, and after adding a calcium compound, solid-liquid separation is performed.
- This calcium compound is preferably calcium chloride or calcium hydroxide. After adding the calcium compound, the pH may be adjusted to 7 to 12, and the polymer flocculant may be added.
- Aluminum phosphate drainage contains phosphoric acid component. Therefore, when calcium etching is added after mixing aluminum etching wastewater and color filter wastewater, calcium phosphate is generated, and aluminum hydroxide and turbidity in the color filter coprecipitate with calcium phosphate. Can be removed from the water.
- the normal color filter wastewater to be treated in the first form contains turbidity of 100 to 5000 degrees, chromaticity of 1000 to 50000 degrees, TOC component of 100 to 5000 mg / L, and pH of 8 to 14.
- the aluminum etching wastewater to be treated in the first embodiment is wastewater from the manufacturing process of electronic components such as integrated circuits, printed boards, color filters, and liquid crystal displays.
- Normal aluminum etching wastewater contains aluminum 1-50 mg / L, TOC component 50-1000 mg / L derived from acetic acid, PO 4 -P component 50-3000 mg / L derived from phosphoric acid, pH 1-5 It is.
- the color filter waste water and the aluminum etching waste water are preferably mixed in a volume ratio of 20: 1 to 1:20, particularly preferably 5: 1 to 1: 5. This mixing may be performed in a tank using a stirrer, or may be performed by a line mixer.
- a calcium compound is added to the mixed waste water, and the PO 4 -P component contained in the aluminum etching waste water is reacted with the calcium compound to generate calcium phosphate.
- the calcium compound calcium chloride or calcium hydroxide is suitable.
- the addition amount of the calcium compound is preferably 0.5 to 20 times, particularly 0.5 to 10 times, particularly 1 to 5 times the chemical equivalent of the PO 4 -P component in the waste water.
- calcium chloride is added, it is preferably added as an aqueous solution thereof.
- the pH is preferable to adjust the pH to 7 to 12, particularly 9 to 11, by adding an alkali such as sodium hydroxide or calcium hydroxide.
- an alkali such as sodium hydroxide or calcium hydroxide.
- a polymer flocculant is further added to grow the aggregate to promote sedimentation.
- a cationic polymer flocculant an anionic polymer flocculant, an amphoteric polymer flocculant and the like are suitable.
- the amount of the polymer flocculant added is preferably 1 to 50 mg / L, more preferably 1 to 20 mg / L, and particularly preferably about 1 to 10 mg / L.
- Solid-liquid separation means various solid-liquid separation devices such as a sedimentation tank, a membrane separation device, and a centrifugal separator can be used.
- Aluminum etching wastewater and copper etching wastewater to be treated in the second embodiment are wastewater from the manufacturing process of electronic components such as integrated circuits, printed boards, color filters, and liquid crystal displays.
- Normal aluminum etching wastewater contains aluminum 1-50 mg / L, TOC component 50-1000 mg / L derived from acetic acid, PO 4 -P component 50-3000 mg / L derived from phosphoric acid, pH 1-5 It is.
- normal copper etching wastewater contains 1 to 50 mg / L of copper, 10 to 1000 mg / L of TOC component derived from photosensitive organic matter, and has a pH of 2 to 8.
- the aluminum etching wastewater and the copper etching wastewater are preferably mixed in a volume ratio of 20: 1 to 1:20, particularly preferably 5: 1 to 1: 5.
- This mixing may be performed in a tank using a stirrer, or may be performed by a line mixer.
- a calcium compound is added to the mixed waste water, and the PO 4 -P component contained in the aluminum etching waste water is reacted with the calcium compound to generate calcium phosphate.
- the calcium compound calcium chloride or calcium hydroxide is suitable.
- the addition amount of the calcium compound is preferably 0.5 to 20 times, particularly 0.5 to 10 times, particularly 1 to 5 times the chemical equivalent of the PO 4 -P component in the waste water.
- calcium chloride is added, it is preferably added as an aqueous solution thereof.
- the pH is preferable to adjust the pH to 7 to 12, particularly 9 to 11, by adding an alkali such as sodium hydroxide or calcium hydroxide.
- an alkali such as sodium hydroxide or calcium hydroxide.
- a polymer flocculant is further added to grow the aggregate to promote sedimentation.
- a cationic polymer flocculant an anionic polymer flocculant, an amphoteric polymer flocculant and the like are suitable.
- the amount of the polymer flocculant added is preferably 1 to 50 mg / L, more preferably 1 to 20 mg / L, and particularly preferably about 1 to 10 mg / L.
- Solid-liquid separation means various solid-liquid separation devices such as a sedimentation tank, a membrane separation device, and a centrifugal separator can be used.
- Table 1 shows the properties of the aluminum etching waste water and the color filter waste water used in Examples I-1 to I-8 and Comparative Examples I-1 to I-9.
- Example I-1 The color filter waste water and aluminum etching waste water are mixed at a volume ratio of 4: 1 (Example I-1), 1: 1 (Example I-2) or 1: 4 (Example I-3).
- Example I-1 The color filter waste water and aluminum etching waste water are mixed at a volume ratio of 4: 1 (Example I-1), 1: 1 (Example I-2) or 1: 4 (Example I-3).
- Example I-1 The color filter waste water and aluminum etching waste water are mixed at a volume ratio of 4: 1 (Example I-1), 1: 1 (Example I-2) or 1: 4 (Example I-3).
- an anionic polymer flocculant Kurita Industrial Co., Ltd. Cliff Rock PA331
- Table 2 shows the quality of the supernatant water and the concentration of the settled sludge.
- Examples I-4, I-5 The treatment was performed in the same manner as in Example I-3, except that the pH was adjusted to 8 (Example I-4) or 6 (Example I-5).
- Table 2 shows the quality of the supernatant water and the concentration of the settled sludge.
- Examples I-6, I-7, I-8 The treatment was performed in the same manner except that the amount of calcium chloride added was less than in Examples I-1, I-2, and I-3. Table 3 shows the amount of calcium chloride added, the quality of the supernatant water, and the concentration of settled sludge.
- Comparative Example I-2 Color filter wastewater was treated in the same manner as Comparative Example I-1, except that the amount of polyiron sulfate added was 10000 mg / L. Table 4 shows the quality of supernatant water and the concentration of settled sludge.
- aluminum etching waste water and color filter waste water can be treated at the same time to obtain treated water having low chromaticity, turbidity and phosphorus concentration. Moreover, according to the method of the present invention, the amount of sludge can be reduced.
- Table 6 shows the properties of aluminum etching waste water and copper etching waste water used in Examples II-1 to II-8 and Comparative Examples II-1 to II-9.
- Example II-1, II-2, II-3 The copper etching waste water and the aluminum etching waste water are mixed at a volume ratio of 4: 1 (Example II-1), 1: 1 (Example II-2) or 1: 4 (Example II-3).
- Example II-1 The copper etching waste water and the aluminum etching waste water are mixed at a volume ratio of 4: 1 (Example II-1), 1: 1 (Example II-2) or 1: 4 (Example II-3).
- Example II-1 pH adjusted to 8.0 (Examples II-1 and II-2) or 10 (Example II-3) with sodium hydroxide
- Anionic polymer flocculant (Kurita Kogyo Co., Ltd. Cliff Rock PA331) was added at 2 mg / L, and the precipitate was separated.
- Table 7 shows the quality of the supernatant water and the concentration of the settled sludge.
- Example II-4 and II-5 The treatment was performed in the same manner as in Example II-3, except that the pH was adjusted to 8 (Example II-4) or 6 (Example II-5) with sodium hydroxide.
- Table 7 shows the quality of the supernatant water and the concentration of the settled sludge.
- Examples II-6, II-7, II-8 The treatment was performed in the same manner except that the amount of calcium chloride added was reduced by 500 mg / L from Examples II-1, II-2, and II-3.
- Table 8 shows the amount of calcium chloride added, the quality of the supernatant water, and the sludge concentration.
- Comparative Example II-2 The copper etching waste water was treated in the same manner as in Comparative Example II-1, except that the addition amount of the ferric chloride aqueous solution was 100 mg / L. Table 9 shows the quality of supernatant water and the concentration of settled sludge.
- aluminum etching waste water and copper etching waste water can be treated at the same time to obtain treated water with low aluminum concentration and copper concentration. Moreover, according to the method of the present invention, the amount of sludge can be reduced.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
第1形態で処理対象となる通常のカラーフィルタ排水には、濁度100~5000度、色度1000~50000度、TOC成分100~5000mg/Lが含まれており、pH8~14である。
第2形態で処理対象となるアルミエッチング排水、銅エッチング排水は、集積回路、プリント基板、カラーフィルター、液晶ディスプレイ等の電子部品の製造工程からの排水である。通常のアルミエッチング排水にはアルミニウム1~50mg/L、酢酸に由来するTOC成分50~1000mg/L、リン酸に由来するPO4-P成分50~3000mg/Lが含まれており、pH1~5である。また、通常の銅エッチング排水には、銅1~50mg/L、感光性有機物に由来するTOC成分10~1000mg/Lが含まれており、pH2~8である。
実施例I-1~I-8及び比較例I-1~I-9で用いたアルミエッチング排水及びカラーフィルタ排水の性状は表1の通りである。
上記カラーフィルタ排水とアルミエッチング排水とを容量比で4:1(実施例I-1)、1:1(実施例I-2)又は1:4(実施例I-3)の割合で混合し、塩化カルシウムを表2で示す添加量にて添加した後、水酸化ナトリウムにてpHを10.0に調整し、アニオン系高分子凝集剤(栗田工業(株)クリフロックPA331)を5mg/L添加し、沈降分離した。上澄水の水質と沈降したスラッジの濃度を表2に示す。
実施例I-3において、pHを8(実施例I-4)又は6(実施例I-5)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表2に示す。
塩化カルシウムの添加量を実施例I-1,I-2,I-3よりも少なくしたこと以外は同様にして処理を行った。塩化カルシウムの添加量、上澄水の水質、沈降したスラッジ濃度を表3に示す。
上記カラーフィルタ排水にポリ硫酸鉄を7000mg/L添加し、pHを8.5に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジ濃度とを表4に示す。
ポリ硫酸鉄の添加量を10000mg/Lとしたこと以外は比較例I-1と同様にしてカラーフィルタ排水を処理した。上澄水の水質と沈降したスラッジ濃度とを表4に示す。
上記アルミエッチング排水にポリ硫酸鉄を660000mg/L添加し、pHを7.0に調整し、アニオン系高分子凝集剤(栗田工業(株)クリフロックPA331)を5mg/L添加しスラッジを沈降させた。上澄水の水質と沈降したスラッジ濃度とを表4に示す。
上記カラーフィルタ排水に塩化カルシウムを1000mg/L添加し、pHを6に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジの濃度を表5に示す。
比較例I-4において、pHを8(比較例I-5)又は10(比較例I-6)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表5に示す。
上記アルミエッチング排水に塩化カルシウムを5000mg/L添加し、pHを6に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジの濃度を表5に示す。
比較例I-7において、pHを8(比較例I-8)又は10(比較例I-9)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表5に示す。
以下の実施例II-1~II-8及び比較例II-1~II-9で用いたアルミエッチング排水及び銅エッチング排水の性状は表6の通りである。
上記銅エッチング排水とアルミエッチング排水とを容量比で4:1(実施例II-1)、1:1(実施例II-2)又は1:4(実施例II-3)の割合で混合し、塩化カルシウムを表7で示す添加量にて添加した後、水酸化ナトリウムにてpHを8.0(実施例II-1及びII-2)又は10(実施例II-3)に調整し、アニオン系高分子凝集剤(栗田工業(株)クリフロックPA331)を2mg/L添加し、沈降分離した。上澄水の水質と沈降したスラッジの濃度を表7に示す。
実施例II-3において、水酸化ナトリウムによりpHを8(実施例II-4)又は6(実施例II-5)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表7に示す。
塩化カルシウムの添加量を実施例II-1,II-2,II-3よりも500mg/Lずつ少なくしたこと以外は同様にして処理を行った。塩化カルシウムの添加量、上澄水の水質、スラッジ濃度を表8に示す。
上記銅エッチング排水に38重量%濃度の塩化第二鉄水溶液を200mg/L添加し、pHを9.0に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジ濃度とを表9に示す。
塩化第二鉄水溶液の添加量を100mg/Lとしたこと以外は比較例II-1と同様にして銅エッチング排水を処理した。上澄水の水質と沈降したスラッジ濃度とを表9に示す。
上記アルミエッチング排水に38重量%濃度の塩化第二鉄水溶液を550,000mg/L添加し、pHを7.0に調整し、アニオン系高分子凝集剤(栗田工業(株)クリロックPA331)を5mg/L添加し、スラッジを沈降させた。上澄水の水質とスラッジ濃度とを表9に示す。
上記カラーフィルタ排水に塩化カルシウムを1000mg/L添加し、pHを6に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジの濃度を表10に示す。
比較例II-4において、pHを8(比較例II-5)又は10(比較例II-6)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表10に示す。
上記アルミエッチング排水に塩化カルシウムを5000mg/L添加し、pHを6に調整し、スラッジを沈降させた。上澄水の水質と沈降したスラッジの濃度を表10に示す。
比較例II-7において、pHを8(比較例II-8)又は10(比較例II-9)に調整したこと以外は同様にして処理を行った。上澄水の水質と沈降したスラッジの濃度を表10に示す。
Claims (10)
- アルミエッチング排水とカラーフィルタ排水又は銅エッチング排水とを混合し、カルシウム化合物を添加した後、固液分離することを特徴とする排水の処理方法。
- 請求項1において、カルシウム化合物は塩化カルシウム又は水酸化カルシウムであることを特徴とする排水の処理方法。
- 請求項1又は2において、カルシウム化合物を添加した後、pHを7~12とすることを特徴とする排水の処理方法。
- 請求項1ないし3のいずれか1項において、固液分離に先立って高分子凝集剤を添加することを特徴とする排水の処理方法。
- 請求項1ないし4のいずれか1項において、アルミエッチング排水はアルミニウムを1~50mg/L、PO4-Pを50~3000mg/L含み、pH1~5であることを特徴とする排水の処理方法。
- 請求項1ないし5のいずれか1項において、カルシウム化合物を排水中のPO4-Pの化学当量の0.5~20倍添加することを特徴とする排水の処理方法。
- 請求項1ないし6のいずれか1項において、カラーフィルタ排水とアルミエッチング排水とを容量比で20:1~1:20の範囲で混合することを特徴とする排水の処理方法。
- 請求項7において、カラーフィルタ排水がTOCを100~5000mg/L含み、pH8~14であることを特徴とする排水の処理方法。
- 請求項1ないし6のいずれか1項において、銅エッチング排水とアルミエッチング排水とを容量比で20:1~1:20の範囲で混合することを特徴とする排水の処理方法。
- 請求項9において、銅エッチング排水は、銅を1~50mg/L含み、pH2~8であることを特徴とする排水の処理方法。
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WO2014126081A1 (ja) * | 2013-02-13 | 2014-08-21 | 栗田工業株式会社 | カラーフィルター製造工程における現像排水の処理方法 |
JP2017501300A (ja) * | 2013-11-20 | 2017-01-12 | プライメタルズ・テクノロジーズ・オーストリア・ゲーエムベーハー | 一定の条件で還元ガスを供給するための方法及び装置 |
CN110304780A (zh) * | 2019-07-24 | 2019-10-08 | 东江环保股份有限公司 | Tft-lcd阵列基板铜导线刻蚀废水的处理方法 |
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CN110482696B (zh) * | 2019-07-31 | 2020-06-30 | 广西大学 | 阻断厌氧颗粒污泥钙化的复合磷基钙化抑制剂及应用方法 |
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JP2004175652A (ja) * | 2002-06-07 | 2004-06-24 | Showa Denko Kk | 希土類元素を含有する廃液から希土類酸化物を回収する方法 |
JP2006231163A (ja) * | 2005-02-23 | 2006-09-07 | Kurita Water Ind Ltd | 希土類含有排水の処理方法 |
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JP4766858B2 (ja) | 2004-09-02 | 2011-09-07 | 日本リファイン株式会社 | リン酸およびリン酸以外の少なくとも1種の酸とを含む金属含有混酸水溶液からリン酸を回収する方法および装置 |
JP4743388B2 (ja) | 2005-03-18 | 2011-08-10 | 栗田工業株式会社 | フォトレジスト含有排水の処理方法 |
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JP2008000642A (ja) | 2006-06-20 | 2008-01-10 | Toppan Printing Co Ltd | カラーフィルタ製造装置の廃水の処理方法 |
JP5215111B2 (ja) | 2008-08-25 | 2013-06-19 | 水ing株式会社 | 銅含有酸性廃液からの銅の回収方法及び装置 |
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JP2004050096A (ja) * | 2002-07-22 | 2004-02-19 | National Institute Of Advanced Industrial & Technology | スラッジを出さず有害物質を含む排水を処理する方法及びそれに使用する薬剤 |
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WO2014126081A1 (ja) * | 2013-02-13 | 2014-08-21 | 栗田工業株式会社 | カラーフィルター製造工程における現像排水の処理方法 |
JP2017501300A (ja) * | 2013-11-20 | 2017-01-12 | プライメタルズ・テクノロジーズ・オーストリア・ゲーエムベーハー | 一定の条件で還元ガスを供給するための方法及び装置 |
CN110304780A (zh) * | 2019-07-24 | 2019-10-08 | 东江环保股份有限公司 | Tft-lcd阵列基板铜导线刻蚀废水的处理方法 |
CN110304780B (zh) * | 2019-07-24 | 2022-02-18 | 东江环保股份有限公司 | Tft-lcd阵列基板铜导线刻蚀废水的处理方法 |
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CN103687817A (zh) | 2014-03-26 |
CN103687817B (zh) | 2015-08-19 |
KR20140040711A (ko) | 2014-04-03 |
TW201311573A (zh) | 2013-03-16 |
TWI534093B (zh) | 2016-05-21 |
JPWO2013015163A1 (ja) | 2015-02-23 |
KR101955048B1 (ko) | 2019-05-31 |
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