JPS6283096A - Water treatment apparatus - Google Patents
Water treatment apparatusInfo
- Publication number
- JPS6283096A JPS6283096A JP60225094A JP22509485A JPS6283096A JP S6283096 A JPS6283096 A JP S6283096A JP 60225094 A JP60225094 A JP 60225094A JP 22509485 A JP22509485 A JP 22509485A JP S6283096 A JPS6283096 A JP S6283096A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sludge
- tank
- containing water
- ejector
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、下降流路とそれに連なる上昇流路を設け、前
記上昇流路から下降流路に微生物含有被処理水を送る循
環路を設け、前記下降流路に酸素含有ガスを供給する給
気装置を設けた曝気槽、並びに、その曝気槽からの汚泥
含有水から汚泥を除去する固液分離装置を有する水処理
装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a downward flow path and an upward flow path connected thereto, and a circulation path for sending water to be treated containing microorganisms from the upward flow path to the downward flow path. , relates to a water treatment device having an aeration tank provided with an air supply device for supplying oxygen-containing gas to the downward flow path, and a solid-liquid separation device for removing sludge from sludge-containing water from the aeration tank.
従来、固液分離装置を形成するに、バンドやポリマー等
の凝集剤を混和して汚泥を沈澱する凝集沈澱槽を設けて
いた。Conventionally, to form a solid-liquid separator, a coagulation-sedimentation tank is provided in which sludge is mixed with a flocculant such as a band or a polymer to precipitate the sludge.
しかし、高価な凝集剤を大量消費するため運転経費が高
騰し、経済性において一層改良の余地があった。However, since a large amount of expensive flocculant is consumed, operating costs have increased, and there is still room for further improvement in terms of economic efficiency.
本発明の目的は、固液分離のための凝集剤を不要にでき
るようにし、しかも、固液分離に要する電力を効率良く
水処理に利用できるようにする点にある。An object of the present invention is to make it possible to eliminate the need for a flocculant for solid-liquid separation, and to make it possible to efficiently utilize the electric power required for solid-liquid separation for water treatment.
本発明の特徴構成は、曝気槽からの処理水に対する固液
分離装置が、限外ろ過膜を有するろ過装置であり、前記
曝気槽とろ過装置を、そのろ過装置に汚泥含有水を加圧
供給するポンプ付給水路と、前記ろ過装置からの汚泥含
有水を前記曝気槽に圧送する還水路とによって接続し、
その還水路に、汚泥含有水の流動に伴って酸素含有ガス
を汚泥含有水中に吸入するエゼクタ−を設けたことにあ
り、その作用効果は次の通りである。The characteristic configuration of the present invention is that the solid-liquid separation device for treated water from the aeration tank is a filtration device having an ultrafiltration membrane, and the aeration tank and the filtration device are connected to each other, and sludge-containing water is supplied under pressure to the filtration device. connected by a water supply waterway equipped with a pump, and a return waterway that pressure-feeds sludge-containing water from the filtration device to the aeration tank,
The return channel is provided with an ejector that sucks oxygen-containing gas into the sludge-containing water as the sludge-containing water flows, and its effects are as follows.
つまり、限界ろ過膜によって汚泥含有水をろ過すれば、
凝集剤によって汚泥をフロック化しなくても、十分に汚
泥を除去したろ過水が得られ、従来必要とした多額の凝
集剤費用を不要にできる。ちなみに、ＳＳが１８００■
／１の原水を処理したところ、ろ過水のＳＳは１０■／
１であった。In other words, if sludge-containing water is filtered using a limit filtration membrane,
Even without flocculating sludge with a flocculant, filtered water from which sludge has been sufficiently removed can be obtained, and the large amount of flocculant costs required in the past can be eliminated. By the way, SS is 1800■
When raw water of /1 was treated, SS of filtrate water was 10■/
It was 1.
他方、限界ろ過膜を使用すると、かなり高圧の処理水を
ろ過装置に供給する必要があり、ポンプの駆動に要する
電力費がかなり高くなる。On the other hand, when using ultrafiltration membranes, it is necessary to supply treated water to the filtration device at a fairly high pressure, which increases the electricity cost required to drive the pump.
したがって、水圧を単にろ過だけに利用すると、凝集剤
費用を零にした経済効果が電力費によって損なわれると
共に、多量の水圧エネルギーが無駄になる問題を派生す
る。Therefore, if water pressure is used only for filtration, the economic effect of eliminating coagulant costs will be undermined by electricity costs, and a large amount of water pressure energy will be wasted.
しかし、本発明によれば、還水路のエゼクタ−において
ろ過に利用されなかった水圧エネルギーにより酸素含有
ガスを汚泥含有水に供給するから、水圧エネルギーを曝
気処理に有効利用できて、総合的に経済効果を十分に図
れると共に、電力を有効に水処理に利用できる。すなわ
ち、従来、必要酸素の全量を下降流路に直接供給される
酸素含有ガスに頬っていたが、気液比の関係から循環路
のポンプにより多量の水を循環しなければならなかった
が、本発明によれば、その循環水量を大巾に減少できる
。However, according to the present invention, oxygen-containing gas is supplied to the sludge-containing water using hydraulic energy that was not used for filtration in the ejector of the return waterway, so the hydraulic energy can be effectively used for aeration treatment, resulting in an overall economical Not only can the effects be sufficiently achieved, but also electric power can be used effectively for water treatment. In other words, in the past, the entire amount of oxygen required was supplied through oxygen-containing gas directly supplied to the downflow path, but due to the gas-liquid ratio, a large amount of water had to be circulated by a pump in the circulation path. According to the present invention, the amount of circulating water can be greatly reduced.
その結果、微生物を利用しての曝気処理、及び、処理水
からの汚泥除去処理を、運転経費を十分に節減した状態
で、かつ、電力の無駄がほとんど無い状態で行えるよう
になり、極めて高性能の曝気装置を提供できるようにな
った。As a result, it has become possible to carry out aeration treatment using microorganisms and sludge removal treatment from treated water with a sufficient reduction in operating costs and with almost no wasted electricity. We are now able to provide high-performance aeration equipment.
次に、図面により実施例を示す。 Next, examples will be shown with reference to drawings.
水深が４ｍ以上の深槽型曝気槽（１）内に、下降流路（
Ｒ５）を形成する筒状体（２）をほぼ鉛直姿勢で設けて
、下降流路（Ｒ１）に連なる上昇流路（Ｒ２）を曝気槽
（１）内に形成しである。A downflow channel (
The cylindrical body (2) forming the aeration tank (R5) is provided in a substantially vertical position, and an ascending channel (R2) connected to the descending channel (R1) is formed in the aeration tank (1).
曝気槽（１）の上部に接続したサクション槽（３）にポ
ンプ（ｐ１）付管路（４）の吸込側を接続し、筒状体（
２）の上端部に配置したエゼクタ−（５）のノズルに管
路（４）の吐出側を接続し、管路（４）によって上昇流
路（Ｒ２）から下降流路（Ｒ１）に微生物含有被処理水
を送る循環路（Ｒ３）を形成しである。The suction side of the pipe line (4) with pump (p1) is connected to the suction tank (3) connected to the upper part of the aeration tank (1), and the cylindrical body (
2) Connect the discharge side of the pipe (4) to the nozzle of the ejector (5) placed at the upper end, and transfer microorganisms from the upward flow path (R2) to the downward flow path (R1) through the pipe (4). A circulation path (R3) for sending the water to be treated is formed.
エゼクタ−（５）の吸気路（５ａ）に空気吸入ｆｆ１ｔ
Ｐｊ節弁（ｖｌ）を接続し、微生物含有被処理水の流動
に伴って適量の空気を下降流路（Ｒ５）に供給するよう
に構成しである。Air intakeff1t into the intake path (5a) of the ejector (5)
The Pj control valve (vl) is connected to supply an appropriate amount of air to the downward flow path (R5) as the water to be treated containing microorganisms flows.
有機材料又は無機材料から成るチューブ状やフィルム状
等の限外ろ過膜（６ａ）を有するろ過装置（６）を設け
、曝気槽（１）とろ過装置（６）を接続するに、サクシ
ョン槽（３）からろ過装置（６）に汚泥含有水を例えば
５ ｋ＋ｒ ／ ｃｕｔ程度で加圧供給するポンプ（Ｒ
２）併給水路（７）、並びに、ろ過装置（６）から上昇
流路（ｎｚ）の下端側に汚泥含有水を例えば３ｋｇ／ｃ
ｎｉ程度で圧送する還水路（８）を設けてある。A filtration device (6) having a tube-shaped or film-shaped ultrafiltration membrane (6a) made of organic or inorganic material is provided, and a suction tank ( A pump (R
2) For example, 3 kg/c of sludge-containing water is supplied from the combined waterway (7) and the filtration device (6) to the lower end side of the ascending channel (nz).
A return channel (8) is provided to pump water at a rate of about ni.
ろ過装置（６）のろ過水回収路（６ｂ）に高度処理設備
（９）を接続し、オゾン処理、活性炭処理等の適当な高
次処理を施した清水が得られるように構成しである。The advanced treatment equipment (9) is connected to the filtrate recovery path (6b) of the filtration device (6), so that fresh water that has been subjected to appropriate high-level treatments such as ozone treatment and activated carbon treatment can be obtained.
還水路（８）に、汚泥含有水の流動に伴って空気を吸入
するエゼクタ−（１０）を設け、エゼクタ−（１０）の
吸気路（１０ａ）に空気吸入量調整弁（Ｒ２）を接続し
、還水路（８）や上昇流路（Ｒ２）においても曝気処理
を行えるように構成しである。An ejector (10) that sucks air as the sludge-containing water flows is provided in the return channel (8), and an air intake amount adjustment valve (R2) is connected to the intake channel (10a) of the ejector (10). The structure is such that aeration treatment can also be performed in the return channel (8) and the ascending channel (R2).
サクション槽（３）に汚泥分離槽（１１）を接続して、
余剰汚泥を回収できるように、かつ、処理水をポンプ（
Ｒ３）付戻り路（１２）でサクション槽（３）に還元で
きるように構成しである。Connect the sludge separation tank (11) to the suction tank (3),
In order to collect excess sludge, and pump the treated water (
R3) is configured so that it can be returned to the suction tank (3) through the return path (12).
次に別実施例を説明する。 Next, another embodiment will be described.
下降流路（Ｒ１）と上昇流路（Ｒ２）を形成する具体的
構造は適当に変更でき、また、下降流路（Ｒ１）に空気
や酸素富化空気や酸素高濃度ガス等の酸素含有ガスを供
給する手段も適当に変更でき、それら手段を給気装置（
５）と総称する。The specific structure forming the descending flow path (R1) and the ascending flow path (R2) can be changed appropriately, and the descending flow path (R1) may be filled with air, oxygen-containing gas such as oxygen-enriched air, or oxygen-rich gas. The means for supplying air can also be changed appropriately, and these means can be replaced by an air supply device (
5).
還水路（８）のエゼクタ−（１０）は、空気や酸素富化
空気や酸素高濃度ガスを供給するものであってもよく、
要するに酸素含有ガスを供給するものであればよい。The ejector (10) of the return channel (8) may supply air, oxygen-enriched air, or oxygen-rich gas,
In short, any device that supplies oxygen-containing gas may be used.
上昇流路（Ｒ２）から下降流路（Ｒ５）に被処理水を循
環させる構成は適宜変更が可能であり、例えばサクショ
ン槽（３）を省略してもよい。The configuration for circulating the water to be treated from the ascending channel (R2) to the descending channel (R5) can be modified as appropriate, and for example, the suction tank (3) may be omitted.
被処理水の種類は、例えばし環系廃水、下水、その他い
かなるものでもよい。The type of water to be treated may be, for example, ring system wastewater, sewage, or any other type of water.
図面は、本発明の実施例を示すフローシートである。
（１）・・・・・・曝気装置、（５）・・・・・・給気
装置、（６）・・・・・・ろ過装置、（６ａ）・・・・
・・限外ろ過ｎり、（７）・・・・・・給水路、（８）
・・・・・・還水路、（１０）・・・・・・エゼクタ−
１（Ｒ２）・・・・・・ポンプ、（Ｒ１）・・・・・・
下降流路、（Ｒ２）・・・・・・上昇流路、（Ｒ３）・
・・・・・循環路。The drawing is a flow sheet illustrating an embodiment of the invention. (1)...Aeration device, (5)...Air supply device, (6)...Filtering device, (6a)...
...Ultrafiltration, (7) ... Water supply channel, (8)
...Return waterway, (10) ...Ejector
1 (R2)...Pump, (R1)...
Descending flow path, (R2)... Ascending flow path, (R3)
...Circulation route.
Claims (1)
を設け、前記上昇流路（Ｒ＿２）から下降流路（Ｒ＿１
）に微生物含有被処理水を送る循環路（Ｒ＿３）を設け
、前記下降流路（Ｒ＿１）に酸素含有ガスを供給する給
気装置（５）を設けた曝気槽（１）、並びに、その曝気
槽（１）からの汚泥含有水から汚泥を除去する固液分離
装置を有する水処理装置であって、前記固液分離装置が
、限外ろ過膜（６ａ）を有するろ過装置（６）であり、
前記曝気槽（１）とろ過装置（６）を、そのろ過装置（
６）に汚泥含有水を加圧供給するポンプ（Ｐ＿２）付給
水路（７）と、前記ろ過装置（６）からの汚泥含有水を
前記曝気槽（１）に圧送する還水路（８）とによって接
続し、その還水路（８）に、汚泥含有水の流動に伴って
酸素含有ガスを汚泥含有水中に吸入するエゼクター（１
０）を設けてある水処理装置。Downflow path (R_1) and upflow path (R_2) connected to it
A downward flow path (R_1) is provided from the upward flow path (R_2) to the downward flow path (R_1).
) is provided with a circulation path (R_3) for sending water containing microorganisms to be treated, and an aeration tank (1) equipped with an air supply device (5) for supplying oxygen-containing gas to the descending flow path (R_1), A water treatment device having a solid-liquid separator for removing sludge from sludge-containing water from a tank (1), wherein the solid-liquid separator is a filtration device (6) having an ultrafiltration membrane (6a). ,
The aeration tank (1) and the filtration device (6) are connected to the filtration device (
a water supply channel (7) with a pump (P_2) that supplies sludge-containing water under pressure to 6); and a return channel (8) that pressure-feeds the sludge-containing water from the filtration device (6) to the aeration tank (1). An ejector (1) is connected to the return channel (8), which sucks oxygen-containing gas into the sludge-containing water as the sludge-containing water flows.
0) water treatment equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225094A JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225094A JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283096A true JPS6283096A (en) | 1987-04-16 |
| JPH0318954B2 JPH0318954B2 (en) | 1991-03-13 |
Family
ID=16823897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60225094A Granted JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1385604A4 (en) * | 1998-08-14 | 2005-03-30 | Wm Internat Ltd | Apparatus and method for treatment of water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840971A (en) * | 1971-10-01 | 1973-06-15 | ||
| JPS54102056A (en) * | 1978-01-27 | 1979-08-11 | Ebara Infilco Co Ltd | Process for high-speed treatment of waste water |
| JPS5839840U (en) * | 1981-08-17 | 1983-03-16 | ブラザー工業株式会社 | ultrasonic processing machine |
| JPS5845912A (en) * | 1981-09-14 | 1983-03-17 | 日本板硝子株式会社 | Manufacture of fiber reinforced cylindrical cement product through press method |
-
1985
- 1985-10-09 JP JP60225094A patent/JPS6283096A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840971A (en) * | 1971-10-01 | 1973-06-15 | ||
| JPS54102056A (en) * | 1978-01-27 | 1979-08-11 | Ebara Infilco Co Ltd | Process for high-speed treatment of waste water |
| JPS5839840U (en) * | 1981-08-17 | 1983-03-16 | ブラザー工業株式会社 | ultrasonic processing machine |
| JPS5845912A (en) * | 1981-09-14 | 1983-03-17 | 日本板硝子株式会社 | Manufacture of fiber reinforced cylindrical cement product through press method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1385604A4 (en) * | 1998-08-14 | 2005-03-30 | Wm Internat Ltd | Apparatus and method for treatment of water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318954B2 (en) | 1991-03-13 |
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