JPS6125689A - Purification treatment of waste water containing surfactant, oil, and fluorine - Google Patents

Purification treatment of waste water containing surfactant, oil, and fluorine

Info

Publication number
JPS6125689A
JPS6125689A JP14435984A JP14435984A JPS6125689A JP S6125689 A JPS6125689 A JP S6125689A JP 14435984 A JP14435984 A JP 14435984A JP 14435984 A JP14435984 A JP 14435984A JP S6125689 A JPS6125689 A JP S6125689A
Authority
JP
Japan
Prior art keywords
added
oil
fluorine
salt
alkaline agent
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.)
Granted
Application number
JP14435984A
Other languages
Japanese (ja)
Other versions
JPH0347917B2 (en
Inventor
Yukio Okuyama
奥山 幸男
Masa Iwai
岩井 雅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Technologies Ltd
Priority to JP14435984A priority Critical patent/JPS6125689A/en
Publication of JPS6125689A publication Critical patent/JPS6125689A/en
Publication of JPH0347917B2 publication Critical patent/JPH0347917B2/ja
Granted legal-status Critical Current

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  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE:To remove effectively contaminants by adding bentonite and a cationic high molecular flocculant to waste water contg. surfactants and oil, adding an Al salt, then adding an alkaline agent to regulate the pH, and separating solid from liquid. CONSTITUTION:Waste water 1 is introduced into a reaction vessel A, and bentonite 2 and a cationic high molecular flocculant 3 are added to decompose the emulsion. The treated water is introduced into a mixing vessel B, and an Al salt 4 and an alkaline agent 5 are added to carry out flocculation. Then flocs are separated in a settling pond C. The treated water is introduced into an oxidation stage D wherein hydrogen peroxide 6 and a ferrous salt 7 are added, then introduced into a neutralization vessel E wherein an alkaline agent 8 is added, and neutralized. The formed flocs are separated in a settling pond F, and clear water 9 is obtained.

Description

【発明の詳細な説明】 この発明は廃水の浄化方法に係り,特にアルミ製鑵工業
に於ける表面処理工程などから排出される界面活性剤,
油分,ふっ素含有廃水の浄化処理方法に関する。
[Detailed Description of the Invention] This invention relates to a method for purifying wastewater, and in particular to a method for purifying wastewater using surfactants discharged from surface treatment processes in the aluminum iron industry.
This article relates to a method for purifying wastewater containing oil and fluorine.

〔従来技術〕[Prior art]

アルミ製鑵工業の表面処理工程からは界面活性剤,油分
,ふっ素含有廃水が排出される。従来この種の廃水の処
理方法としては,該廃水に鉱酸を添加しpHを4前後と
し,次いで活性炭,カチオン系高分子凝集剤,アルミニ
ウム塩を順次添加し。
Surfactant, oil, and fluorine-containing wastewater is discharged from the surface treatment process of the aluminum iron industry. Conventionally, this type of wastewater treatment method involves adding a mineral acid to the wastewater to adjust the pH to around 4, and then sequentially adding activated carbon, a cationic polymer flocculant, and an aluminum salt.

更にアルカリで廃水を中性にして生じた沈殿物を除去し
た後に,得られた澄水にAA塩を添加し。
Furthermore, after neutralizing the wastewater with an alkali and removing the resulting precipitate, AA salt was added to the resulting clear water.

更にアルカリでpHを6〜8止し,生じた沈殿物を除去
することにより行なわれてきている。しかしながら、上
記従来法だと界面活性剤を含む有機汚濁物質,油分,ふ
っ素の除去性が不十分である欠点があった。
Furthermore, it has been carried out by adjusting the pH to 6 to 8 with an alkali and removing the formed precipitate. However, the above-mentioned conventional method has the disadvantage that the ability to remove organic pollutants containing surfactants, oil, and fluorine is insufficient.

〔発明の目的〕[Purpose of the invention]

この発明の目的は前記従来技術の欠点を解消し。 The object of the present invention is to overcome the drawbacks of the prior art.

界面活性剤,油分及びふっ素を含有する廃水からこれら
の汚染成分を効果的に除去することを可能にすることが
できる処理方法を捷供するにある。
The object of the present invention is to provide a treatment method that can effectively remove pollutants from wastewater containing surfactants, oil, and fluorine.

〔発明の要点〕[Key points of the invention]

上記目的を達成するため1本発明は界面活性剤。 In order to achieve the above object, the present invention provides a surfactant.

油分、及びふつ素を含有する廃水にベントナイト。Bentonite in wastewater containing oil and fluorine.

カチオン系高分子凝集剤を添加し1次KA4塩を添加後
、アルカリ剤を添加してpH7に調節後置液分離する工
程(第一工程)9次いで得られた処理水に過酸化水素、
第一鉄塩を添加後、アルカリ剤でpH7に調節し固液分
離して処理水を得る工程(第二工程)を有するように構
成したものである。
After adding a cationic polymer flocculant and adding primary KA4 salt, adding an alkali agent to adjust the pH to 7 and separating the post-liquid (first step) 9 Next, hydrogen peroxide was added to the resulting treated water,
After adding the ferrous salt, the system includes a step (second step) of adjusting the pH to 7 with an alkaline agent and performing solid-liquid separation to obtain treated water.

本発明の一実施態様を第1図を用いて説明すれば、廃水
1に一反応槽AK導きベントナイト2・、カチオン系高
分子凝集剤3t−添加してエマルジョン分解を行なう。
One embodiment of the present invention will be described with reference to FIG. 1. Emulsion decomposition is carried out by adding 2 tons of bentonite and 3 tons of cationic polymer flocculant to wastewater 1 in a reaction tank AK.

この処理水を−さらに混和槽Bに導きAl塩4.アルカ
リ剤5を添加して凝集反応を行ったのち、沈でん池Cで
凝集フロックを分離し。
This treated water is further led to mixing tank B with Al salt4. After adding alkaline agent 5 to perform a flocculation reaction, the flocs were separated in sedimentation tank C.

その処理水は酸化工程りに導き、過酸化水素6゜第1鉄
塩7を添加後、中和槽Eに導きアルカリ剤8を添加して
中和後、沈でん池Fで凝集フロツクを分離し、清澄水9
を得るものである。酸化処理においては残存有機物が除
去され、又残存するふっ素も第2鉄イオンの共沈効果に
より凝集除去される。次に実施例を示す。
The treated water is led to an oxidation process, after which hydrogen peroxide (6°) and ferrous salt (7) are added, it is led to a neutralization tank (E) and an alkali agent (8) is added to neutralize it, and the flocs are separated in a sedimentation tank (F). , Kiyomizu 9
This is what you get. In the oxidation treatment, residual organic matter is removed, and residual fluorine is also coagulated and removed by the coprecipitation effect of ferric ions. Next, examples will be shown.

〔発明の実施例〕[Embodiments of the invention]

アルミ製鑵工業の表口処理工程から排出される界面活性
剤、油分、ふっ素を含有した廃水に対して、ベントナイ
ト”k3000〜/を添加して5外間急速攪拌し次にカ
チオン系高分子凝集剤126q/を添加して5分間急速
攪拌し9次にPACを1620η/を添加し5分間急速
攪拌後Cα(OH)2でpH7に中和し1次にアニオン
系高分子凝集剤をlη/を添加、10分間緩速攪拌した
後30分静置した。次に上澄水に過酸化水素を468〜
/を添加し5分間急速攪拌し9次に硫酸第一鉄(7水塩
)を3300岬/を添加し5分間急速攪拌後。
To wastewater containing surfactants, oil, and fluorine discharged from the surface treatment process of Aluminum Steel Industry, bentonite "k3000~/" was added and rapidly stirred for 5 minutes, followed by a cationic polymer flocculant. 126q/ was added and stirred rapidly for 5 minutes.Next, 1620η/ of PAC was added, and after rapid stirring for 5 minutes, it was neutralized to pH 7 with Cα(OH)2, and the anionic polymer flocculant was added lη/. After addition, the mixture was slowly stirred for 10 minutes and then allowed to stand for 30 minutes.Next, hydrogen peroxide was added to the supernatant water at a concentration of 468~
/ was added and stirred rapidly for 5 minutes.Next, 3300 cape/ of ferrous sulfate (heptahydrate) was added and stirred rapidly for 5 minutes.

荀性ソーダでPH7に中和し1次にアニオン系高分子凝
集剤を1*/を添加し、10分間緩速攪拌後30分靜置
した。廃水水質および得られた上澄水水質を第1表に示
す。
The mixture was neutralized to pH 7 with sodium chloride soda, and then 1*/ of an anionic polymer flocculant was added, stirred slowly for 10 minutes, and then left to stand for 30 minutes. The quality of the wastewater and the quality of the obtained supernatant water are shown in Table 1.

第   1   表 〔発明の効果〕 以上説明したごとく9本発明によれば界面活性剤、油分
及びふっ素を含有する廃水を効率よく浄化処理すること
ができる。
Table 1 [Effects of the Invention] As explained above, according to the present invention, wastewater containing surfactants, oil, and fluorine can be efficiently purified.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施態51t−示す系統説明図であ
る。 l・・・廃 水      2・・・ベントナイト3・
・・カチオン系高分子凝集剤 4・・・Al塩      5・・・アルカリ剤6・・
・過酸化水素    7・・・第1鉄塩8・・アルカリ
剤    9・・清澄水A・・・反応槽      B
・・・混和槽C・・・沈でん池     D・・酸化槽
E・・中和槽      F・・沈でん池。
FIG. 1 is a system explanatory diagram showing one embodiment 51t of the present invention. l...waste water 2...bentonite 3.
...Cationic polymer flocculant 4...Al salt 5...Alkaline agent 6...
・Hydrogen peroxide 7... Ferrous salt 8... Alkali agent 9... Clear water A... Reaction tank B
... Mixing tank C... Sedimentation tank D... Oxidation tank E... Neutralization tank F... Sedimentation tank.

Claims (1)

【特許請求の範囲】[Claims] 界面活性剤、油分、ふつ素含有廃水にベントナイト、カ
チオン系高分子凝集剤を添加し次にAl塩を添加後アル
カリ剤でpH7に中和し固液分離して処理水を得る工程
(第一工程)と該処理水に過酸化水素を添加し、さらに
第一鉄塩を添加後、アルカリ剤でpH7に中和し固液分
離して処理水を得る工程(第二工程)を有することを特
徴とする界面活性剤、油分、ふつ素含有廃水の浄化処理
方法。
A step of adding bentonite and a cationic polymer flocculant to wastewater containing surfactants, oil, and fluorine, and then adding Al salt, neutralizing the pH to 7 with an alkaline agent, and performing solid-liquid separation to obtain treated water (first step). step) and a step (second step) of adding hydrogen peroxide to the treated water, further adding ferrous salt, neutralizing it to pH 7 with an alkaline agent, and performing solid-liquid separation to obtain treated water. A method for purifying wastewater containing surfactants, oil, and fluorine.
JP14435984A 1984-07-13 1984-07-13 Purification treatment of waste water containing surfactant, oil, and fluorine Granted JPS6125689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14435984A JPS6125689A (en) 1984-07-13 1984-07-13 Purification treatment of waste water containing surfactant, oil, and fluorine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14435984A JPS6125689A (en) 1984-07-13 1984-07-13 Purification treatment of waste water containing surfactant, oil, and fluorine

Publications (2)

Publication Number Publication Date
JPS6125689A true JPS6125689A (en) 1986-02-04
JPH0347917B2 JPH0347917B2 (en) 1991-07-22

Family

ID=15360266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14435984A Granted JPS6125689A (en) 1984-07-13 1984-07-13 Purification treatment of waste water containing surfactant, oil, and fluorine

Country Status (1)

Country Link
JP (1) JPS6125689A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006027121A1 (en) * 2004-09-07 2006-03-16 Ciba Specialty Chemicals Water Treatments Limited Treatment of oily sludges
CN103848513A (en) * 2012-11-28 2014-06-11 苏州市环境保护有限公司 Fluorine-containing wastewater treatment method based on Fenton oxidation reaction, and apparatus thereof
CN106241913A (en) * 2016-09-08 2016-12-21 合肥智慧殿投资管理有限公司 A kind of waste-water from coal mine inorganic agent and its preparation method and application

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840260A (en) * 1971-09-21 1973-06-13
JPS5231973A (en) * 1975-05-13 1977-03-10 Mitsui Fudousan Kensetsu Kk Treating method of oil containing mud or waste water
JPS52108654A (en) * 1976-03-09 1977-09-12 Toa Gosei Chem Ind Method of treating treated night soil water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840260A (en) * 1971-09-21 1973-06-13
JPS5231973A (en) * 1975-05-13 1977-03-10 Mitsui Fudousan Kensetsu Kk Treating method of oil containing mud or waste water
JPS52108654A (en) * 1976-03-09 1977-09-12 Toa Gosei Chem Ind Method of treating treated night soil water

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006027121A1 (en) * 2004-09-07 2006-03-16 Ciba Specialty Chemicals Water Treatments Limited Treatment of oily sludges
CN103848513A (en) * 2012-11-28 2014-06-11 苏州市环境保护有限公司 Fluorine-containing wastewater treatment method based on Fenton oxidation reaction, and apparatus thereof
CN103848513B (en) * 2012-11-28 2016-03-02 苏州市环境保护有限公司 A kind of fluorine-containing wastewater treatment method based on Fenton oxidation reaction
CN106241913A (en) * 2016-09-08 2016-12-21 合肥智慧殿投资管理有限公司 A kind of waste-water from coal mine inorganic agent and its preparation method and application

Also Published As

Publication number Publication date
JPH0347917B2 (en) 1991-07-22

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