JPS6230595A - Method for treating dirty water - Google Patents
Method for treating dirty waterInfo
- Publication number
- JPS6230595A JPS6230595A JP16974885A JP16974885A JPS6230595A JP S6230595 A JPS6230595 A JP S6230595A JP 16974885 A JP16974885 A JP 16974885A JP 16974885 A JP16974885 A JP 16974885A JP S6230595 A JPS6230595 A JP S6230595A
- Authority
- JP
- Japan
- Prior art keywords
- water
- flocculant
- dirty water
- treated
- mixed
- 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
Landscapes
- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は汚濁水の処理方法に関し、さらに詳しくは汚濁
水にアニオン系あるいはカチオン系凝集剤を添加し、該
汚濁水に前記汚濁水に添加した凝集剤と反対イオンの凝
集剤を含有する処理水を混合し、且つ前記汚濁水よ処理
水の少なくとも一方に加圧空気を混入せしめて、これを
浮上槽に導入することを特徴とする汚濁水の処理方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating polluted water, and more specifically, an anionic or cationic flocculant is added to the polluted water, and the polluted water is treated with ions opposite to the flocculant added to the polluted water. The present invention relates to a method for treating polluted water, which comprises mixing treated water containing a flocculant, mixing pressurized air into at least one of the polluted water and the treated water, and introducing the mixture into a flotation tank.
従来、汚濁水の処理方法として浮上分層方法が提案され
ている。これらの処理方法には汚濁水に凝集剤を添加し
て処理する方法があるが、この方法によっても処理すべ
き汚濁水の○ＯＤはたかだか数千−が限度であった。Conventionally, a floatation layer method has been proposed as a method for treating polluted water. Among these treatment methods, there is a method of adding a flocculant to the polluted water, but even with this method, the OD of the polluted water to be treated is limited to several thousand at most.
本発明者はこれら従来の欠点を解消すべく種々研究を重
ねた結果本発明を完成するに至った。The present inventor has completed the present invention as a result of repeated research in order to eliminate these conventional drawbacks.
本発明は、まず原水貯槽から汚濁水ゑ凝集槽に導ひき、
ここでアニオン系あるいはカチオン系の凝集剤を添加す
る。一方汚濁水に添加した反対イオンの凝集剤を添加し
た処理水を調整し、これをパイプ等で流す途中で該処理
水中にコンプレッサー等で加圧空気を混入せしめ、かが
る状態で汚濁水と混合する。パイプ中で混合された汚濁
水と空気加圧凝集処理水は、電気化学的の凝集と加圧空
気泡が瞬間凝集、吸着、気泡耐着し、原水中の微粒子を
分離浮上させ短時間内に清澄水が得られる。The present invention first introduces polluted water from a raw water storage tank to a coagulation tank,
At this point, an anionic or cationic flocculant is added. On the other hand, treated water is prepared by adding an opposite ion flocculant to the polluted water, and while it is flowing through a pipe, pressurized air is mixed into the treated water using a compressor, etc., and the water is mixed with polluted water. Mix. Contaminated water and air pressure coagulation treated water mixed in a pipe undergo instant coagulation, adsorption, and bubble adhesion through electrochemical coagulation and pressurized air bubbles, separating and floating fine particles in the raw water and clarifying the water within a short time. water is available.
本発明方法に使用する凝集剤としては例えばアニオン系
凝集剤としてはポリアクリル酸ナトリウム、ポリアクリ
ルアミド部分加水分解物、ポリスチレンスルホン酸ソー
ダ、ポリアクリル二トソル部分加水分解物、マレイン酸
共重合物、カルボキシメチルセルロース、カルボキシメ
チルデンプン、ゼラチン、ニカワ、カゼイン、アルギン
顔ンーダ等が砂げられる。またオチオン系凝集剤として
はポリアクリルアミドのカチオン変性物、ポリビニルピ
リジ＞＃１ｍ塩。Examples of flocculants used in the method of the present invention include anionic flocculants such as sodium polyacrylate, partial hydrolyzate of polyacrylamide, sodium polystyrene sulfonate, partial hydrolyzate of polyacrylic nitosol, maleic acid copolymer, and carboxylic acid. Methyl cellulose, carboxymethyl starch, gelatin, glue, casein, alginic powder, etc. are extracted. Further, as the cationic flocculant, cationic modified polyacrylamide and polyvinylpyridi>#1m salt are used.
ポリヒニルイミダゾリン、ポ°リピニルベンシントリメ
チルアンモニウムク四ライド、ポリアミノアクリレート
、ポリジメチルジアリルアンモニウムクロライド、ポリ
エチレンイミン、ポリエチレンアミノ°トリアゾール、
ポリアルキレンポリアミン虐エピクロルヒドリン縮金物
、ポリチオ尿素酢酸塩、水溶性アニリン樹脂等が挙げら
れる。Polyhinyl imidazoline, polypinylbencine trimethylammonium tetralide, polyaminoacrylate, polydimethyldiallylammonium chloride, polyethyleneimine, polyethyleneaminotriazole,
Examples include polyalkylene polyamine-condensed epichlorohydrin condensates, polythiourea acetates, and water-soluble aniline resins.
本発明方法において加圧空気の混合は前記したように処
理水に行ってもよいが、また汚濁水に添加してもよい。In the method of the present invention, the pressurized air may be mixed with the treated water as described above, but it may also be added to the polluted water.
次に本発明を実施例により説明する。Next, the present invention will be explained by examples.
フローシート
実施例
汚濁水（ＰＩＩ８．３．８８８２４（ＸＰ 、 Ｏ■３
８−）にアニオン系凝集剤（ソリッドエース）をＺｏｏ
ＩＦ添加しパイプで浮上槽に導びく。一方力チオン系
凝集剤（ボリナン） １００−を加圧水にパイプで前記
汚濁水のパイプに連設し、パイプ中で混合しながら浮上
槽に導く。その際処理水の中に例えばコンプレッサー等
により加圧空気を吹き込む。浮上槽に入った汚濁水は気
泡が上昇すると共に該気泡に汚濁物質が電気的に結合さ
れた状態でスカムとして回収される。浮上槽で処理され
た水質は（ＰＩＩ８．３．８Ｂ ５１，６騨、 ＯＯＤ
１ｓｐｐ ）であった。Flowsheet Example Polluted water (PII8.3.88824 (XP, O■3
8-) Add anionic flocculant (Solid Ace) to Zoo
Add IF and lead to the flotation tank with a pipe. On the other hand, a thionic coagulant (borinane) 100- is connected to the pipe for the polluted water in pressurized water through a pipe, and is introduced into the flotation tank while being mixed in the pipe. At this time, pressurized air is blown into the treated water using, for example, a compressor. The polluted water that has entered the flotation tank is recovered as scum with air bubbles rising and pollutants electrically coupled to the air bubbles. The quality of water treated in the flotation tank is (PII8.3.8B 51.6, OOD
1spp).
Claims (1)
、該汚濁水に前記汚濁水に添加した凝集剤と反対イオン
の凝集剤を含有する処理水を混合し、且つ前記汚濁水と
処理水の少なくとも一方に加圧空気を混入せしめて、こ
れを浮上槽に導入することを特徴とする汚濁水の処理方
法。An anionic or cationic flocculant is added to the polluted water, treated water containing a flocculant with an opposite ion to the flocculant added to the polluted water is mixed, and at least the polluted water and the treated water are mixed. A method for treating contaminated water characterized by mixing pressurized air into one side and introducing this into a flotation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16974885A JPS6230595A (en) | 1985-08-02 | 1985-08-02 | Method for treating dirty water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16974885A JPS6230595A (en) | 1985-08-02 | 1985-08-02 | Method for treating dirty water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6230595A true JPS6230595A (en) | 1987-02-09 |
Family
ID=15892110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16974885A Pending JPS6230595A (en) | 1985-08-02 | 1985-08-02 | Method for treating dirty water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008086860A (en) * | 2006-09-29 | 2008-04-17 | Kurita Water Ind Ltd | Dissolved air floatation system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249651A (en) * | 1975-10-17 | 1977-04-20 | Kankyo Eng Kk | Process for treating waste water containing carbon |
-
1985
- 1985-08-02 JP JP16974885A patent/JPS6230595A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249651A (en) * | 1975-10-17 | 1977-04-20 | Kankyo Eng Kk | Process for treating waste water containing carbon |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008086860A (en) * | 2006-09-29 | 2008-04-17 | Kurita Water Ind Ltd | Dissolved air floatation system |
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