JPS6283095A - Aeration device - Google Patents
Aeration deviceInfo
- Publication number
- JPS6283095A JPS6283095A JP60224581A JP22458185A JPS6283095A JP S6283095 A JPS6283095 A JP S6283095A JP 60224581 A JP60224581 A JP 60224581A JP 22458185 A JP22458185 A JP 22458185A JP S6283095 A JPS6283095 A JP S6283095A
- Authority
- JP
- Japan
- Prior art keywords
- water
- flow path
- treated
- path
- oxygen
- 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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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、被処理水の下降流動に伴
って吸気路からの酸素含有ガスを被処理水中に吸入する
エゼクタ−を設けた曝気装置に関する。[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. The present invention relates to an aeration device in which the descending flow path is provided with an ejector that sucks oxygen-containing gas from the intake path into the water to be treated as the water to be treated flows downward.
従来、下降流路と上昇流路を区画する隔壁は、上端部以
外には開口部を備えていす、下降流路において、循環路
からの被処理水だけに吸気路からの酸素含存ガスが混合
されていた（例えば特開昭６０−５１５９８号公報参照
）。Conventionally, the partition wall that divides the descending flow path and the ascending flow path has an opening other than the upper end. (See, for example, Japanese Patent Laid-Open No. 60-51598).
しかし、エゼクタ−による酸素含有ガス吸入を動力効率
良く行うと、吸入した酸素含有ガスに対する酸素吸収効
率が低下し、逆に、酸素吸収効率を良好にすると動力効
率が低下し、動力効率及び酸素吸収効率の両方を向上す
ることができない欠点があった。However, if the ejector inhales oxygen-containing gas with high power efficiency, the oxygen absorption efficiency for the inhaled oxygen-containing gas will decrease, and conversely, if the oxygen absorption efficiency is made good, the power efficiency will decrease, and the power efficiency and oxygen absorption will decrease. There was a drawback that both efficiency and efficiency could not be improved.
さらに詳述すると、エゼクタ−に供給する被処理水量を
一定として、エゼクタ−で空気を吸入する場合、空気吸
入量の変化に伴う酸素吸収効率の変動は第２図に示すよ
うになる。つまり、空気吸入量が増大する程、酸素吸収
効率が低下するのである。More specifically, when the amount of treated water supplied to the ejector is kept constant and air is sucked in by the ejector, the variation in oxygen absorption efficiency due to changes in the amount of air sucked is as shown in FIG. 2. In other words, as the amount of air intake increases, the oxygen absorption efficiency decreases.
本発明の目的は、酸素含有ガスの吸入を動力効率良好に
行えると共に、吸入した酸素含有ガスに対する酸素吸入
効率を向上できるようにする点にある。An object of the present invention is to make it possible to inhale oxygen-containing gas with good power efficiency and to improve the oxygen inhalation efficiency for the inhaled oxygen-containing gas.
本発明の特徴構成は、下降流路とそれに連なる上昇流路
を区画する隔壁に、酸素含有ガス吸入用エゼクタ−から
噴出される気液混相流によって上昇流路から下降流路に
被処理水を吸入する開口部を形成したことにあり、その
作用効果は次の通りである。The characteristic configuration of the present invention is that water to be treated is transferred from the ascending channel to the descending channel by a gas-liquid multiphase flow ejected from an oxygen-containing gas suction ejector to a partition wall that partitions a descending channel and an ascending channel connected thereto. The purpose is to form an opening for inhalation, and its effects are as follows.
つまり、エゼクタ−において動力効率良く酸素含有ガス
の吸入を行わせて、エゼクタ−からの気液混相流におけ
る水量に対する酸素含有ガス量の比を大きくしても、開
口部からの被処理水吸入によって、下降流路の大部分に
おいて、水量に対する酸素含有ガス量の比を十分に小さ
くできて、酸素吸収効率を十分に高くできる。In other words, even if the ejector inhales oxygen-containing gas with high power efficiency and increases the ratio of the amount of oxygen-containing gas to the amount of water in the gas-liquid multiphase flow from the ejector, the amount of water to be treated from the opening will still increase. In most of the descending flow path, the ratio of the amount of oxygen-containing gas to the amount of water can be made sufficiently small, and the oxygen absorption efficiency can be made sufficiently high.
ちなみに、エゼクタ−に供給する水量を１イ／ｍｉｎ、
エゼククーによる空気吸入量を１．８８ｒ＋？／ｍｉｎ
にし、開口部を有する本発明例と、開口部が無い従来例
を比較実験したところ、従来例での酸素吸収効率は２２
％と低いが、本発明例では、開口部からの吸入水量が９
．８ ％ ／ｍｉｎとなり、酸素吸収効率は８４％と極
めて高くなった。By the way, the amount of water supplied to the ejector is 1 i/min,
Is the air intake amount by Ezekuku 1.88r+? /min
A comparative experiment was conducted between an example of the present invention having an opening and a conventional example without an opening, and the oxygen absorption efficiency of the conventional example was 22.
%, but in the example of the present invention, the amount of water sucked in from the opening is 9%.
．． 8%/min, and the oxygen absorption efficiency was extremely high at 84%.
その結果、エゼクタ−による酸素含有ガス吸入を動力効
率良好に行えると共に、吸入した酸素含有ガスに対する
酸素吸収効率を大巾に向上でき、運転経費の低減を図り
ながら高負荷曝気を行えるようになり、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, the ejector can suck in oxygen-containing gas with good power efficiency, and the oxygen absorption efficiency for the inhaled oxygen-containing gas can be greatly improved, making it possible to perform high-load aeration while reducing operating costs. We are now able to provide extremely high-performance aeration equipment.
次に、第１図による実施例を示す。 Next, an embodiment according to FIG. 1 will be shown.
水深が１０〜１５ｍ程度のあるいはそれ以上の深槽型曝
気槽（１）内に、下降流路（Ｒ１）を形成する筒状体（
２）をほぼ鉛直姿勢で設けて、筒状体（２）の上端側開
口部を曝気槽（１）の液面に対して下方近くに、かつ、
下端側開口部を曝気槽（１）の底部近くに夫々配置し、
下降流路（Ｒ２）を曝気槽（１）内に形成してある。A cylindrical body (
2) is provided in a substantially vertical position, with the upper end opening of the cylindrical body (2) being located close to below the liquid level of the aeration tank (1), and
The lower end side openings are respectively arranged near the bottom of the aeration tank (1),
A descending channel (R2) 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（Ｐ）付管路（４）の吸込側を接続し、曝気槽（１
）の水面下に配置したエゼクタ−（５）のノズル（５ａ
）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（Ｒ３）に微生物含有被
処理水を送る循環路（Ｒ３）を形成してある。The suction side of the pipe line (4) with pump (P) is connected to the suction tank (3) connected to the upper part of the aeration tank (1).
) The nozzle (5a) of the ejector (5) is placed below the water surface.
), the discharge side of the pipe (4) is connected to the pipe (4) to form a circulation path (R3) that sends the microorganism-containing water to be treated from the upward flow path (R2) to the downward flow path (R3). be.
エゼクタ−（５）の吸気路（５ｂ）に空気吸入量調節弁
（ν）を接続し、エゼクタ−（５）の下向き吐出口（５
ｃ）を筒状体（２）の上端部に対してほぼ同芯状に接近
配置し、エゼクタ−（５）から噴出される気液混相流の
全量が筒状体（２）に供給されると共に、エゼクタ−（
５）と筒状体（２）の間に形成した開口部（６）を通っ
て、気液混相流によって上昇流路（Ｒ２）から下降流路
（Ｒ＋）に被処理水が吸入されるように構成してある。An air intake amount control valve (ν) is connected to the intake path (5b) of the ejector (5), and the downward discharge port (5) of the ejector (5) is
c) is arranged close to the upper end of the cylindrical body (2) in a substantially concentric manner, so that the entire amount of the gas-liquid multiphase flow ejected from the ejector (5) is supplied to the cylindrical body (2). Together with the ejector (
5) and the cylindrical body (2) so that the water to be treated is sucked from the upward flow path (R2) to the downward flow path (R+) by a gas-liquid multiphase flow. It is structured as follows.
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、隔壁（２）によって下降流路（
Ｒ１）と上昇流路（Ｒ２）を区画形成してあればよい。The specific structure for forming the descending channel (R1) and the ascending channel (R2) can be changed appropriately, and the descending channel (R2) can be formed by the partition wall (2).
R1) and the ascending flow path (R2) may be partitioned.
給気路（５ｂ）は、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 air supply path (5b) may be one that supplies oxygen-enriched air or oxygen-rich gas; in short, it may be one that supplies oxygen-containing gas.
上昇流路（Ｒ２）から下降流路（Ｒ３）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 (R3) can be modified as appropriate, and for example, the suction tank (3) may be omitted.
被処理水の種類は、例えばし尿系廃水、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, human wastewater, sewage, or any other type of water.
第１図は、本発明の実施例を示す概念図であり、第２図
は、空気吸入量の変動に伴う酸素吸収効率の変動を示す
グラフである。
（２）・・・・・・隔壁、（５）・・・・・・エゼクク
ー、（６）・・・・・・開口部、（Ｒ１）・・・・・・
下降流路、（Ｒ２）・・・・・・上昇流路、（Ｒ３）・
・・・・・循環路。FIG. 1 is a conceptual diagram showing an embodiment of the present invention, and FIG. 2 is a graph showing changes in oxygen absorption efficiency due to changes in air intake amount. (2)...Bulkhead, (5)...Ezekuku, (6)...Opening, (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、被処理水の下降流動に伴
って吸気路（５ｂ）からの酸素含有ガスを被処理水中に
吸入するエゼクター（５）を設けた曝気装置であって、
前記下降流路（Ｒ＿１）と上昇流路（Ｒ＿２）を区画す
る隔壁（２）に、前記エゼクター（５）から噴出される
気液混相流によって前記上昇流路（Ｒ＿２）から下降流
路（Ｒ＿１）に被処理水を吸入する開口部（６）を形成
してある曝気装置。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 the water containing microorganisms to be treated, and the downward flow path (R_1) is provided with an oxygen-containing gas from the intake path (5b) into the water to be treated as the water to be treated flows downward. An aeration device provided with an ejector (5) for inhaling,
A gas-liquid multiphase flow ejected from the ejector (5) causes a flow from the ascending channel (R_2) to the descending channel (R_1) to the partition wall (2) that partitions the descending channel (R_1) and the ascending channel (R_2). ) is formed with an opening (6) for inhaling the water to be treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224581A JPH0677750B2 (en) | 1985-10-08 | 1985-10-08 | Aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60224581A JPH0677750B2 (en) | 1985-10-08 | 1985-10-08 | Aeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283095A true JPS6283095A (en) | 1987-04-16 |
| JPH0677750B2 JPH0677750B2 (en) | 1994-10-05 |
Family
ID=16815974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60224581A Expired - Lifetime JPH0677750B2 (en) | 1985-10-08 | 1985-10-08 | Aeration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677750B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06178992A (en) * | 1991-08-07 | 1994-06-28 | Takuo Mochizuki | Aeration treatment device for liquid |
| JP2002248488A (en) * | 2001-02-23 | 2002-09-03 | Japan Sewage Works Agency | Aeration method and aeration device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128194A (en) * | 1981-11-06 | 1983-07-30 | ザ・ビ−オ−シ−・グル−プ・ピ−エルシ− | Dissolving of gas in liquid and apparatus for treating sewage |
| JPS6051598A (en) * | 1983-08-31 | 1985-03-23 | Kubota Ltd | Aeration device |
-
1985
- 1985-10-08 JP JP60224581A patent/JPH0677750B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128194A (en) * | 1981-11-06 | 1983-07-30 | ザ・ビ−オ−シ−・グル−プ・ピ−エルシ− | Dissolving of gas in liquid and apparatus for treating sewage |
| JPS6051598A (en) * | 1983-08-31 | 1985-03-23 | Kubota Ltd | Aeration device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06178992A (en) * | 1991-08-07 | 1994-06-28 | Takuo Mochizuki | Aeration treatment device for liquid |
| JP2002248488A (en) * | 2001-02-23 | 2002-09-03 | Japan Sewage Works Agency | Aeration method and aeration device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0677750B2 (en) | 1994-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |