JPH0751239B2 - How to purify water - Google Patents
How to purify waterInfo
- Publication number
- JPH0751239B2 JPH0751239B2 JP2184265A JP18426590A JPH0751239B2 JP H0751239 B2 JPH0751239 B2 JP H0751239B2 JP 2184265 A JP2184265 A JP 2184265A JP 18426590 A JP18426590 A JP 18426590A JP H0751239 B2 JPH0751239 B2 JP H0751239B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- activated carbon
- carbon adsorption
- treatment
- treated
- 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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、水の浄化方法に係り、特に、少なくとも有機
物又は有機物とリンを含有する水を物理化学的に浄化す
る方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for purifying water, and more particularly to a method for physicochemically purifying water containing at least an organic substance or an organic substance and phosphorus.
従来、有機性廃水は生物学的に処理したのち、残留した
生物不活性の有機物、リンを高度に処理するため、硫酸
ばん土あるいは塩化第２鉄などの無機凝集剤を添加して
凝集処理を行い、さらにその分離水中に残留するCOD成
分（有機物）を除去するために、砂ろ過、活性炭吸着処
理等を行っている。Conventionally, organic wastewater has been biologically treated, and in order to highly treat residual bioinert organic matter and phosphorus, inorganic flocculants such as ferric chloride or ferric chloride are added for coagulation treatment. In order to remove COD components (organic substances) remaining in the separated water, sand filtration, activated carbon adsorption treatment, etc. are performed.
しかしながら、上記のような高度処理法においても、活
性炭処理水には、尚微量のSS、多数の一般細菌が存在
し、完全な処理水質を得るには至らなかった。However, even in the advanced treatment method as described above, a small amount of SS and a large number of general bacteria were still present in the activated carbon treated water, and it was not possible to obtain perfect treated water quality.
そこで、本発明は、凝集処理で残留したCOD成分を活性
炭で吸着し、かつSSが０で、一般細菌が極めて少ない高
度に浄化された処理水を得ることのできる水の浄化方法
を提供することを目的とする。Therefore, the present invention provides a method for purifying water in which COD components remaining in the coagulation treatment are adsorbed by activated carbon, SS is 0, and highly purified treated water with very few general bacteria can be obtained. With the goal.
上記目的を達成するために、本発明では、生物処理し、
固液分離された有機物又は有機物とリンを含有する分離
水を無機凝集剤によって凝集処理したのち、凝集フロッ
クが存在した状態で活性炭吸着工程に導入せしめ、該活
性炭吸着工程流出水を膜分離工程で処理することを特徴
とする水の浄化方法としたものである。In order to achieve the above object, in the present invention, biological treatment,
After the solid-liquid separated organic matter or separated water containing organic matter and phosphorus is coagulated with an inorganic coagulant, the floc is introduced into the activated carbon adsorption step in the presence of flocs, and the activated carbon adsorption step effluent is subjected to the membrane separation step. This is a water purification method characterized by treatment.
本発明で用いる活性炭吸着工程は、上向流型で、特に流
動床式の活性炭処理装置を用いるのが好適である。In the activated carbon adsorption step used in the present invention, it is preferable to use an upflow type, particularly a fluidized bed type activated carbon treatment apparatus.
次に、本発明の水の浄化方法を、その一例を示す工程図
である第１図を用いて説明する。Next, the water purification method of the present invention will be described with reference to FIG. 1, which is a process drawing showing an example thereof.
第１図では廃水１はBOD酸化あるいは硝化脱窒処理など
の生物処理工程２で、BOD、窒素等が除去されたのち、
沈殿槽、遠心分離機、UF膜などの固液分離工程３に導入
され、生物汚泥は分離され、分離された汚泥は返送汚泥
４として生物処理工程２に返送される。分離水５は凝集
混合槽６に導入され、ここで硫酸バンドあるいは塩化第
２鉄などの無機凝集剤７、及び必要により、pH調整用ア
ルカリ剤８が添加され、硫酸バンドではpH5.5〜6.5、塩
化第２鉄ではpH4.0〜5.0に調整されて、残留するCOD成
分、リンが凝集される。凝集フロックを含有した凝集水
９は下向流又は上向流で活性炭吸着工程10に導入され、
凝集水に溶存残留しているCOD成分が吸着される。活性
炭吸着工程10の流出水11は膜分離工程12で処理され、透
過水13は放流され、濃縮汚泥14は排出される。In Fig. 1, wastewater 1 is removed from BOD, nitrogen, etc. in a biological treatment step 2 such as BOD oxidation or nitrification denitrification,
The biological sludge is introduced into the solid-liquid separation step 3 such as a settling tank, a centrifuge, and a UF membrane, and the separated sludge is returned to the biological treatment step 2 as return sludge 4. The separated water 5 is introduced into a coagulation / mixing tank 6, where an inorganic coagulant 7 such as a sulfuric acid band or ferric chloride and, if necessary, a pH adjusting alkali agent 8 are added, and a pH 5.5 to 6.5 is applied in the sulfuric acid band. The pH of ferric chloride is adjusted to 4.0 to 5.0, and the residual COD component and phosphorus are aggregated. The coagulated water 9 containing coagulated flocs is introduced into the activated carbon adsorption step 10 in a downward flow or an upward flow,
COD components remaining in the condensed water are adsorbed. Outflow water 11 of activated carbon adsorption step 10 is treated in membrane separation step 12, permeated water 13 is discharged, and concentrated sludge 14 is discharged.
なお、活性炭吸着工程10は従来のように凝集分離した分
離水ではなく、凝集フロックの状態で導入するので、上
向流でかつ流動床を形成させるようにするのが好まし
い。Since the activated carbon adsorption step 10 is introduced in the state of flocculation flocs instead of the separated water that has been flocculated and separated as in the conventional case, it is preferable to form an upward flow and a fluidized bed.
以下、本発明を実施例で具体的に説明するが、本発明は
これらの実施例に限定されるものではない。Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples.
実施例１ し尿の無希釈脱窒処理水（生物処理水）を本発明の第１
図に従って次の条件で処理した。結果を表１に示す。Example 1 Undiluted denitrification treated water (biological treated water) of human waste was used as the first embodiment of the present invention.
It processed on the following conditions according to the figure. The results are shown in Table 1.
硫酸バンド添加量 5000mg/l 凝集pH 6.0 活性炭吸着塔空間速度（SV） 3/時 UF膜分離装置 UF膜分画分子量 ２万 （チューブラタイプ） UF膜入口圧 2.5kgf/cm2 実施例２ 浄化槽汚泥を４日間曝気したのち、遠心分離機で脱水
し、分離液を次の条件で処理した。結果を表２に示す。Sulfuric acid band addition amount 5000mg / l Aggregation pH 6.0 Activated carbon adsorption tower space velocity (SV) 3 / hr UF membrane separator UF membrane fraction molecular weight 20,000 (tubular type) UF membrane inlet pressure 2.5kgf / cm 2 Example 2 Septic tank sludge was aerated for 4 days, dehydrated by a centrifuge, and the separated liquid was treated under the following conditions. The results are shown in Table 2.
硫酸バンド添加量 1000mg/l 凝集pH 6.0 活性炭吸着塔空間速度（SV） 5/時 UF膜分離装置 UF膜分画分子量 10万 （チューブラタイプ） UF膜入口圧 2.0kgf/cm2 〔発明の効果〕 本発明によれば、CODMnを低濃度まで処理できるほか、S
Sを完全に、また一般細菌類をほぼ完全に排除でき、極
めて完全かつ高度に浄化された水を得ることができる。Sulfuric acid band addition amount 1000mg / l Aggregation pH 6.0 Activated carbon adsorption tower space velocity (SV) 5 / hr UF membrane separator UF membrane fraction molecular weight 100,000 (tubular type) UF membrane inlet pressure 2.0kgf / cm 2 According to the present invention, COD Mn can be treated to a low concentration, and S
S can be completely eliminated and general bacteria can be eliminated almost completely, and extremely complete and highly purified water can be obtained.
第１図は、本発明の浄化方法を示す工程図である。 １……廃水、２……生物処理工程、３……固液分離工
程、４……返送汚泥、５……分離水、６……凝集混合
槽、７……無機凝集剤、８……アルカリ剤、９……凝集
水、10……活性炭吸着工程、11……流出水、12……膜分
離工程、13……透過水、14……濃縮汚泥FIG. 1 is a process drawing showing the purification method of the present invention. 1 ... Wastewater, 2 ... Biological treatment process, 3 ... Solid-liquid separation process, 4 ... Return sludge, 5 ... Separation water, 6 ... Aggregation mixing tank, 7 ... Inorganic coagulant, 8 ... Alkali Agent, 9 ... Coagulated water, 10 ... Activated carbon adsorption process, 11 ... Outflow water, 12 ... Membrane separation process, 13 ... Permeated water, 14 ... Concentrated sludge
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 9/00 Ｅ 7446−4Ｄ ５０３ Ｃ 7446−4Ｄ ５０４ Ａ 7446−4Ｄ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C02F 9/00 E 7446-4D 503 C 7446-4D 504 A 7446-4D
Claims (1)
機物とリンを含有する分離水を、無機凝集剤によって凝
集処理したのち、凝集フロックが存在した状態で活性炭
吸着工程に導入せしめ、該活性炭吸着工程流出水を膜分
離工程で処理することを特徴とする水の浄化方法。1. An organic matter which has been subjected to biological treatment and solid-liquid separation or separated water containing an organic matter and phosphorus is subjected to an aggregating treatment with an inorganic aggregating agent, and then introduced into an activated carbon adsorption step in the presence of aggregating flocs, A method for purifying water, characterized in that the water discharged from the activated carbon adsorption step is treated in a membrane separation step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2184265A JPH0751239B2 (en) | 1990-07-13 | 1990-07-13 | How to purify water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2184265A JPH0751239B2 (en) | 1990-07-13 | 1990-07-13 | How to purify water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0471699A JPH0471699A (en) | 1992-03-06 |
| JPH0751239B2 true JPH0751239B2 (en) | 1995-06-05 |
Family
ID=16150295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2184265A Expired - Lifetime JPH0751239B2 (en) | 1990-07-13 | 1990-07-13 | How to purify water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751239B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565049A (en) * | 2016-11-08 | 2017-04-19 | 河南顺天生物科技有限公司 | Nicotine production waste water flocculating decolorizaiton and evaporation membrane treatment technology |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002028651A (en) * | 2000-07-17 | 2002-01-29 | Mitsubishi Rayon Co Ltd | Purified water treatment system and purified water treatment method |
| JP2004216207A (en) * | 2003-01-09 | 2004-08-05 | Kuraray Co Ltd | Wastewater treatment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02172597A (en) * | 1988-12-26 | 1990-07-04 | Ebara Infilco Co Ltd | Treatment of organic sewage |
-
1990
- 1990-07-13 JP JP2184265A patent/JPH0751239B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565049A (en) * | 2016-11-08 | 2017-04-19 | 河南顺天生物科技有限公司 | Nicotine production waste water flocculating decolorizaiton and evaporation membrane treatment technology |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0471699A (en) | 1992-03-06 |
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