JPH0347917B2 - - Google Patents
Info
- Publication number
- JPH0347917B2 JPH0347917B2 JP59144359A JP14435984A JPH0347917B2 JP H0347917 B2 JPH0347917 B2 JP H0347917B2 JP 59144359 A JP59144359 A JP 59144359A JP 14435984 A JP14435984 A JP 14435984A JP H0347917 B2 JPH0347917 B2 JP H0347917B2
- Authority
- JP
- Japan
- Prior art keywords
- added
- fluorine
- oil
- treated water
- salt
- 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.)
- Expired - Lifetime
Links
- 239000002351 wastewater Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000011737 fluorine Substances 0.000 claims description 10
- 229910052731 fluorine Inorganic materials 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 229920006317 cationic polymer Polymers 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 2
- 239000008394 flocculating agent Substances 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920006318 anionic polymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Description
〔発明の利用分野〕
この発明は廃水の浄化方法に係り、特にアルミ
製罐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、ふつ素含有廃水の浄化処理
方法に関する。
〔従来技術〕
アルミ製罐工業の表面処理工程からは界面活性
剤、油分、ふつ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、
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Al塩を添加し、
更にアルカリでPHを６〜８とし、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、ふつ素の除去性が不十分である欠
点があつた。
〔発明の目的〕
この発明の目的は前記従来技術の欠点を解消
し、界面活性剤、油分及びふつ素を含有する廃水
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提供するにあ
る。
〔発明の要点〕
上記目的を達成するため、本発明は界面活性
剤、油分、及びふつ素を含有する廃水にベントナ
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、アルカリ剤を添加してPH７に調
節後固液分離する工程（第一工程）、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。
本発明の一実施態様を第１図に用いて説明すれ
ば、廃水１を反応槽Ａに導きベントナイト２、カ
チオン系高分子凝集剤３を添加してエマルジヨン
分解を行なう。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
行つたのち、沈でん池Ｃで凝集フロツクを分離
し、その処理水は酸化工程Ｄ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
るふつ素も第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。
〔発明の実施例〕
アルミ製罐工業の表図処理工程から排出される
界面活性剤、油分、ふつ素を含有した廃水に対し
て、ベントナイトを3000mg／添加して５分間急
速撹拌し次にカチオン系高分子凝集剤126mg／
添加して５分間急速撹拌し、次にPACを1620
mg／添加し５分間急速撹拌後Ca（OH）2でPH７
に中和し、次にアニオン系高分子凝集剤を１mg／
添加、10分間緩速撹拌した後30分静置した。次
に上澄水に過酸化水素を468mg／添加し５分間
急速撹拌し、次に硫酸第一鉄（７水塩）を3300
mg／添加し５分間急速撹拌後、苛性ソーダでPH
７に中和し、次にアニオン系高分子凝集剤を１
mg／添加し、10分間緩速撹拌後30分静置した。
廃水水質および得られた上澄水水質を第１表に示
す。
[Field of Application of the Invention] The present invention relates to a method for purifying wastewater, and particularly to a method for purifying wastewater containing surfactants, oil, and fluorine discharged from surface treatment processes in the aluminum can industry. [Prior Art] Surface treatment processes in the aluminum can industry produce wastewater containing surfactants, oil, and fluorine. Conventionally, this type of wastewater treatment method involves adding mineral acid to the wastewater to adjust the pH to around 4, then sequentially adding activated carbon, a cationic polymer flocculant, and an aluminum salt.
Furthermore, after neutralizing the wastewater with alkali and removing the resulting precipitate, Al salt was added to the resulting clear water,
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. [Object of the Invention] The object of the invention is to overcome the drawbacks of the prior art and to make it possible to effectively remove pollutants from wastewater containing surfactants, oil and fluorine. To provide a processing method. [Summary of the Invention] In order to achieve the above object, the present invention adds bentonite and a cationic polymer flocculant to wastewater containing surfactants, oil, and fluorine, and then
After adding Al salt, add an alkaline agent to adjust the pH to 7, and then perform solid-liquid separation (first step). Next, add hydrogen peroxide and ferrous salt to the resulting treated water, and then use an alkaline agent to adjust the pH to 7. The second step is a step of adjusting the temperature and separating the solid-liquid to obtain treated water (second step). One embodiment of the present invention will be described with reference to FIG. 1. Waste water 1 is introduced into reaction tank A, and bentonite 2 and cationic polymer flocculant 3 are added thereto to decompose the emulsion. This treated water is further led to mixing tank B, where Al salt 4 and alkali agent 5 are added to perform a flocculation reaction, and then the flocs are separated in sedimentation tank C, and the treated water is led to oxidation step D, where it is peroxidized. After adding hydrogen 6 and ferrous salt 7, the water is led to a neutralization tank E, where an alkali agent 8 is added to neutralize it, and flocs are separated in a sedimentation tank F to obtain clear water 9. 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. [Embodiment of the invention] 3000 mg of bentonite was added to wastewater containing surfactants, oil, and fluorine discharged from the table treatment process of the aluminum can industry, and the mixture was rapidly stirred for 5 minutes, and then cations were added. Polymer flocculant 126mg/
Add and stir rapidly for 5 minutes, then add PAC to 1620
mg/added and after rapid stirring for 5 minutes, the pH was 7 at Ca(OH) 2.
and then add 1 mg of anionic polymer flocculant to
After addition, the mixture was stirred slowly for 10 minutes and then left to stand for 30 minutes. Next, 468 mg of hydrogen peroxide was added to the supernatant water and stirred rapidly for 5 minutes.
mg/added and after rapid stirring for 5 minutes, pH with caustic soda
7 and then anionic polymer flocculant to 1
mg/mg 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.
以上説明したごとく、本発明によれば界面活性
剤、油分及びふつ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。
As explained above, according to the present invention, wastewater containing surfactants, oil, and fluorine can be efficiently purified.
第１図は本発明の一実施態様を示す系統説明図
である。
１……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 of the present invention. 1... Wastewater, 2... Bentonite, 3... Cationic polymer flocculant, 4... Al salt, 5... Alkaline agent, 6... Hydrogen peroxide, 7... Ferrous salt, 8
... Alkaline agent, 9 ... Clear water, A ... Reaction tank,
B... Mixing tank, C... Sedimentation tank, D... Oxidation tank,
E...neutralization tank, F...sedimentation pond.
Claims (1)
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。1 Bentonite and cationic polymer flocculants are added to wastewater containing surfactants, oil, and fluorine, and then
After adding Al salt, it is neutralized to pH 7 with an alkali agent and solid-liquid separation is performed to obtain treated water (first step), hydrogen peroxide is added to the treated water, ferrous salt is further added, and an alkali is added. A method for purifying wastewater containing a surfactant, oil, and fluorine, the method comprising a step (second step) of neutralizing the pH to 7 with an agent and performing solid-liquid separation to obtain treated water.
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 JPS6125689A (en) | 1986-02-04 |
| JPH0347917B2 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0419815D0 (en) * | 2004-09-07 | 2004-10-13 | Ciba Spec Chem Water Treat Ltd | Treatment of oily sludges |
| 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 |
Citations (3)
| 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 |
-
1984
- 1984-07-13 JP JP14435984A patent/JPS6125689A/en active Granted
Patent Citations (3)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6125689A (en) | 1986-02-04 |
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