JP2003080284A - Wastewater treatment equipment - Google Patents
Wastewater treatment equipmentInfo
- Publication number
- JP2003080284A JP2003080284A JP2001280282A JP2001280282A JP2003080284A JP 2003080284 A JP2003080284 A JP 2003080284A JP 2001280282 A JP2001280282 A JP 2001280282A JP 2001280282 A JP2001280282 A JP 2001280282A JP 2003080284 A JP2003080284 A JP 2003080284A
- Authority
- JP
- Japan
- Prior art keywords
- wastewater
- carrier
- liquid cyclone
- treated
- pipe
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、排水処理装置に係
り、より詳細には、付着担体や包括固定化担体、自己造
粒汚泥等の担体を用いて排水を処理する排水処理装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater treatment apparatus, and more particularly to a wastewater treatment apparatus for treating wastewater using a carrier such as an adherent carrier, entrapping immobilization carrier, self-granulating sludge or the like.
【０００２】[0002]
【従来技術】有用微生物を高濃度に維持するために、付
着担体や包括固定化担体、自己造粒汚泥等の担体に微生
物を担持させて排水を処理する方法が知られている（例
えば特開平９−２７６８８４号公報）。2. Description of the Related Art In order to maintain useful microorganisms at a high concentration, there is known a method in which microorganisms are loaded on a carrier such as an adherent carrier, entrapping immobilization carrier, self-granulating sludge, etc. to treat wastewater (for example, Japanese Patent Laid-Open Publication No. Hei 10 (1999) -242945). 9-276884).
【０００３】図３は、上記公報に記載の排水処理方法を
適用する排水処理装置を示すフロー図である。図３に示
すように、この排水処理方法は、処理槽１００で得られ
る処理排水を微生物固定化担体１０１とともに液体サイ
クロン１０２に送り、液体サイクロン１０２にて処理排
水と微生物固定化担体１０１とに分離している。このと
き、液体サイクロン１０２に処理排水を流入させるため
に沈殿槽１０３を設け、沈殿槽１０３の水面を処理槽１
００の水面より低くすることによりサイフォン管１０４
を通して処理排水を引き抜き、これにより動力を使用せ
ずに液体サイクロン１０２に処理排水を流入させてい
る。また、液体サイクロン１０２で分離された微生物固
定化担体１０１は、エアリフトポンプなどにより配管１
０５を通して処理槽１００に戻し、これにより処理槽１
００内において微生物固定化担体１０１の濃度を一定に
維持することとしている。FIG. 3 is a flow chart showing a wastewater treatment apparatus to which the wastewater treatment method described in the above publication is applied. As shown in FIG. 3, in this wastewater treatment method, the treated wastewater obtained in the treatment tank 100 is sent to a liquid cyclone 102 together with the microorganism immobilization carrier 101, and the liquid cyclone 102 separates the treated wastewater and the microorganism immobilization carrier 101. is doing. At this time, a settling tank 103 is provided to allow the treatment wastewater to flow into the liquid cyclone 102, and the water surface of the settling tank 103 is set to the treatment tank 1
The siphon tube 104 is made lower than the water level of 00
The treated effluent is drawn out through this, so that the treated effluent flows into the liquid cyclone 102 without using power. Further, the microorganism-immobilized carrier 101 separated by the liquid cyclone 102 is connected to the pipe 1 by an air lift pump or the like.
It returns to the processing tank 100 through 05, and thereby the processing tank 1
00, the concentration of the microorganism-immobilized carrier 101 is maintained constant.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述し
た従来の公報に記載の排水処理方法は、以下に示す課題
を有する。However, the wastewater treatment method described in the above-mentioned conventional publication has the following problems.
【０００５】即ち上記排水処理方法は、液体サイクロン
１０２の後段に、液体サイクロン１０２に処理排水を流
水させるための沈殿槽１０３を必要とするため、装置が
大型化するという課題を有する。That is, the above wastewater treatment method has a problem that the apparatus becomes large in size because a settling tank 103 for flowing the treated wastewater into the liquid cyclone 102 is required after the liquid cyclone 102.
【０００６】また、上記排水処理方法は、微生物固定化
担体１０１をエアリフトポンプ等によって配管１０５を
通して処理槽１００に戻すこととしている。この場合、
微生物固定化担体１０１を輸送するために多量の空気が
必要となる。このため、それに要するブロワ等の動力が
大となり、多大なランニングコストがかかる。In the wastewater treatment method, the microorganism-immobilized carrier 101 is returned to the treatment tank 100 through the pipe 105 by an air lift pump or the like. in this case,
A large amount of air is required to transport the microorganism-immobilized carrier 101. For this reason, the power of the blower and the like required therefor becomes large and a great running cost is required.
【０００７】本発明は、上記事情に鑑みてなされたもの
であり、装置を小型化でき且つランニングコストを十分
に低減できる排水処理装置を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wastewater treatment apparatus which can be downsized and the running cost can be sufficiently reduced.
【０００８】[0008]
【課題を解決するための手段】本発明者は、上記課題を
解決するため鋭意検討した結果、処理槽と液体サイクロ
ンとの間で循環流を作ることで、液体サイクロンに処理
排水を流水させるための沈殿槽を不要とし、且つ液体サ
イクロンから処理槽へ担体を戻すために動力を使用しな
いで済むことを見出し、本発明を完成するに至った。Means for Solving the Problems As a result of intensive studies for solving the above-mentioned problems, the present inventor created a circulating flow between a treatment tank and a liquid cyclone to cause the liquid cyclone to flow treated wastewater. The present invention has been completed by finding that the settling tank of No. 1 is unnecessary and power is not used for returning the carrier from the liquid cyclone to the processing tank.
【０００９】即ち本発明は、処理槽内で水よりも比重の
大きい担体を用いて被処理排水を処理し、処理槽で得ら
れる処理排水と前記担体とを液体サイクロンで分離し、
分離した前記担体を前記処理槽に戻す排水処理装置にお
いて、前記被処理排水を曝気する曝気手段と、前記処理
槽の上部と前記液体サイクロンとを連通させる第１配管
と、前記液体サイクロンと前記処理槽の下部とを連通さ
せる第２配管とを備えることを特徴とする。なお、本発
明においては、付着担体、包括固定化担体だけでなく自
己造粒汚泥も「担体」に含まれるものとする。That is, according to the present invention, wastewater to be treated is treated in a treatment tank by using a carrier having a larger specific gravity than water, and the treated wastewater obtained in the treatment tank and the carrier are separated by a liquid cyclone,
In the wastewater treatment device for returning the separated carrier to the treatment tank, aeration means for aerating the wastewater to be treated, first pipe for communicating the upper part of the treatment tank with the liquid cyclone, the liquid cyclone and the treatment It is characterized by including a second pipe that communicates with a lower portion of the tank. In the present invention, not only the adherent carrier and the entrapping immobilization carrier but also the self-granulating sludge is included in the “carrier”.
【００１０】この発明によれば、曝気手段により被処理
排水が曝気されると、空気の上昇エネルギーにより被処
理排水の上昇流が形成される。すると、処理排水及び担
体が処理槽の上部から第１配管を経て液体サイクロンに
流入し、液体サイクロンで処理排水と担体が分離され、
担体は、第２配管を経て処理槽の下部に流入する。こう
して処理槽と液体サイクロンとの間に循環流が形成され
る。このため、処理排水を液体サイクロンに流入させる
べく液体サイクロンの後段に沈殿槽を設ける必要がな
い。また、液体サイクロンから処理槽に担体を戻すのに
別途動力を必要としない。According to the present invention, when the treated wastewater is aerated by the aeration means, an upward flow of the treated wastewater is formed by the rising energy of the air. Then, the treated wastewater and the carrier flow into the liquid cyclone from the upper part of the treatment tank through the first pipe, and the treated wastewater and the carrier are separated by the liquid cyclone,
The carrier flows into the lower part of the processing tank through the second pipe. In this way, a circulating flow is formed between the processing tank and the liquid cyclone. Therefore, it is not necessary to provide a settling tank in the latter stage of the liquid cyclone in order to allow the treated wastewater to flow into the liquid cyclone. Moreover, no separate power is required to return the carrier from the liquid cyclone to the treatment tank.
【００１１】上記発明において、第２配管が前記処理槽
の壁面を貫通し、その先端開口が上向きになっているこ
とが好ましい。この場合、第２配管の先端開口が上向き
になっているため、曝気手段による空気が第２配管に侵
入することがない。このため、空気による担体の逆流が
防止され、担体を円滑に処理槽内に戻すことが可能とな
る。In the above invention, it is preferable that the second pipe penetrates the wall surface of the processing tank, and the tip opening thereof faces upward. In this case, since the front end opening of the second pipe is directed upward, air from the aeration means does not enter the second pipe. Therefore, backflow of the carrier due to air is prevented, and the carrier can be smoothly returned into the processing tank.
【００１２】また、本発明は、処理槽内で水よりも比重
の大きい担体を用いて被処理排水を処理し、前記処理槽
で得られる処理排水と前記担体とを液体サイクロンで分
離し、分離した前記担体を前記処理槽に戻す排水処理装
置において、前記処理槽を第１室と第２室とに仕切る仕
切部材と、前記第１室内で前記被処理排水を曝気する曝
気手段と、前記第１室の上部と前記液体サイクロンとを
連通させる配管とを備え、前記第１室の下部と前記第２
室の下部とが、前記仕切部材に形成される開口を通して
連通していることを特徴とする。Further, according to the present invention, the wastewater to be treated is treated in the treatment tank by using a carrier having a specific gravity larger than that of water, and the treated wastewater obtained in the treatment tank and the carrier are separated by a liquid cyclone and separated. In the wastewater treatment device for returning the carrier to the treatment tank, a partition member for partitioning the treatment tank into a first chamber and a second chamber, aeration means for aerating the wastewater to be treated in the first chamber, A pipe for communicating the upper part of one chamber with the liquid cyclone, and the lower part of the first chamber and the second
It is characterized in that the lower part of the chamber communicates with an opening formed in the partition member.
【００１３】この発明によれば、第１室において、曝気
手段により被処理排水が曝気されると、空気の上昇エネ
ルギーにより被処理排水の上昇流が形成される。する
と、処理排水及び担体が第１室の上部から第１配管を経
て液体サイクロンに流入し、液体サイクロンで処理排水
と担体が分離され、担体は、仕切部材に形成される開口
を通して第１室の下部に流入する。こうして第１室と液
体サイクロンとの間に循環流が形成される。このため、
処理排水を液体サイクロンに流入させるべく液体サイク
ロンの後段に沈殿槽を設ける必要がない。また、液体サ
イクロンから第１室に担体を戻すのに別途動力を必要と
しない。According to the present invention, when the treated wastewater is aerated by the aeration means in the first chamber, the rising energy of the air forms an upward flow of the treated wastewater. Then, the treated wastewater and the carrier flow into the liquid cyclone from the upper part of the first chamber through the first pipe, the treated wastewater and the carrier are separated by the liquid cyclone, and the carrier passes through the opening formed in the partition member to form the first chamber. Inflow to the bottom. In this way, a circulating flow is formed between the first chamber and the hydrocyclone. For this reason,
There is no need to provide a settling tank after the liquid cyclone to allow the treated wastewater to flow into the liquid cyclone. Also, no separate power is required to return the carrier from the hydrocyclone to the first chamber.
【００１４】上記発明において、液体サイクロンの頂部
が開放されていることが好ましい。この場合、処理排水
中に入り込んでいる空気が液体サイクロンの頂部に溜ま
り、第１配管又は配管に空気が侵入することにより処理
排水が液体サイクロンに流入しにくくなるという事態が
十分に防止される。In the above invention, it is preferable that the top of the liquid cyclone is opened. In this case, it is possible to sufficiently prevent the situation in which the air that has entered the treated wastewater is collected at the top of the liquid cyclone and the air enters the first pipe or the pipes, which makes it difficult for the treated wastewater to flow into the liquid cyclone.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施形態について
詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below.
【００１６】図１は、本発明の排水処理装置の一実施形
態を概略的に示す断面図である。図１に示すように、排
水処理装置１は、被処理排水２を収容する処理槽３を備
えている。被処理排水２中には、多数の担体４が散在し
ている。担体４の種類としては、付着担体、包括固定化
担体、自己造粒汚泥などが用いられる。担体４の材質
は、水より比重の大きいものであればよく、その材質と
しては、例えばポリプロピレン、ポリスチレン、ポリエ
チレングリコール、ポリビニルアルコール又はアンスラ
サイト等が用いられる。FIG. 1 is a sectional view schematically showing an embodiment of the waste water treatment equipment of the present invention. As shown in FIG. 1, the wastewater treatment device 1 includes a treatment tank 3 that stores the wastewater 2 to be treated. A large number of carriers 4 are scattered in the wastewater 2 to be treated. As the type of the carrier 4, an adherent carrier, entrapping immobilization carrier, self-granulating sludge, or the like is used. The carrier 4 may be made of any material as long as it has a larger specific gravity than water, and examples of the material include polypropylene, polystyrene, polyethylene glycol, polyvinyl alcohol, anthracite, and the like.
【００１７】処理槽３の側壁３ａには原水導入配管５が
接続され、原水が原水導入配管５を経て被処理排水とし
て処理槽３に導入されるようになっている。また、処理
槽３の下部には、複数本の散気管６が底面に沿って並設
され、散気管６のそれぞれには、長さ方向に沿って散気
ノズル７が複数取り付けられている。また散気管６に
は、図示しないブロワにより空気が導入されるようにな
っている。なお、散気管６、散気ノズル７及びブロワに
より曝気手段が構成されている。A raw water introduction pipe 5 is connected to the side wall 3a of the treatment tank 3, and the raw water is introduced into the treatment tank 3 as treated wastewater through the raw water introduction pipe 5. Further, a plurality of air diffusers 6 are arranged in parallel along the bottom surface of the lower portion of the processing tank 3, and a plurality of air diffuser nozzles 7 are attached to each of the air diffusers 6 along the length direction. Air is introduced into the air diffuser 6 by a blower (not shown). The aeration pipe 6, the aeration nozzle 7 and the blower constitute an aeration means.
【００１８】更に、処理槽３の側壁３ｂの上部には排水
排出口８が形成されている。一方、処理槽３の外部に
は、液体サイクロン９が設けられており、液体サイクロ
ン９は、円筒状の外筒部１０ａと、外筒部１０ａの内側
に同心状に配置される内筒部１０ｂと、外筒部１０ａの
下部に設けられる円錐部１１とを備えている。そして、
液体サイクロン９の外筒部１０ａと処理槽３の排水排出
口８とは第１配管１２によって接続されている。ここ
で、第１配管１２の延び方向は外筒部１０ａの接線方向
に一致している。従って、処理排水及び担体４は、第１
配管１２を経て処理槽３の上部から外筒部１０ａに流入
されると、内筒部１０ｂの周りを回転しながら下降す
る。このとき、担体４は、その遠心力により外筒部１０
ａの内壁に集められ、円錐部１１を経て沈降する。Further, a drainage outlet 8 is formed in the upper part of the side wall 3b of the processing tank 3. On the other hand, a liquid cyclone 9 is provided outside the processing tank 3, and the liquid cyclone 9 has a cylindrical outer cylinder portion 10a and an inner cylinder portion 10b arranged concentrically inside the outer cylinder portion 10a. And a conical portion 11 provided below the outer cylindrical portion 10a. And
The outer cylinder portion 10 a of the liquid cyclone 9 and the waste water discharge port 8 of the treatment tank 3 are connected by a first pipe 12. Here, the extending direction of the first pipe 12 coincides with the tangential direction of the outer tubular portion 10a. Therefore, the treated wastewater and the carrier 4 are
When it flows into the outer cylindrical portion 10a from the upper portion of the processing tank 3 through the pipe 12, it descends while rotating around the inner cylindrical portion 10b. At this time, the carrier 4 causes the outer cylindrical portion 10 to move due to its centrifugal force.
Collected on the inner wall of a and settles through the conical portion 11.
【００１９】ここで、液体サイクロン９の外筒部１０ａ
及び内筒部１０ｂの頂部は、開放されていることが好ま
しい。この場合、処理排水中に入り込んでいる空気を上
方に逃がすことが可能となるため、空気が外筒部１０ａ
の頂部に溜まり、第１配管１２に侵入することにより、
処理排水を液体サイクロン９に流入させにくくするとい
う事態を十分に防止することが可能となる。Here, the outer cylinder portion 10a of the liquid cyclone 9
It is preferable that the top of the inner cylindrical portion 10b is open. In this case, since it is possible to let the air that has entered the treated wastewater to escape upward, the air will flow out of the outer cylinder portion 10a.
By accumulating at the top of the and entering the first pipe 12,
It is possible to sufficiently prevent the situation where it is difficult to make the treated wastewater flow into the liquid cyclone 9.
【００２０】なお、液体サイクロン９の内筒部１０ｂに
は処理排水排出配管１３が接続されており、処理排水が
処理排水排出配管１３を経て排出されるようになってい
る。A treated wastewater discharge pipe 13 is connected to the inner cylindrical portion 10b of the liquid cyclone 9, and the treated wastewater is discharged through the treated wastewater discharge pipe 13.
【００２１】液体サイクロン９の円錐部１１の最下部に
は担体排出口１４が形成され、担体排出口１４には第２
配管１５が接続され、第２配管１５により、液体サイク
ロン９と処理槽３の下部とが連通している。A carrier discharge port 14 is formed at the lowermost part of the conical portion 11 of the liquid cyclone 9, and the carrier discharge port 14 has a second position.
A pipe 15 is connected, and the liquid cyclone 9 and the lower portion of the processing tank 3 communicate with each other through the second pipe 15.
【００２２】図１において、第２配管１５は、担体排出
口１４から延び、処理槽３の側壁３ｂを貫通している。
ここで、第２配管１５の先端開口１６は、散気ノズル７
より上方であって排水排出口８より下方にあることが好
ましい。これは次の理由によるものである。即ち、担体
４は水より比重が大きいため、沈降して処理槽３の底面
に溜まる傾向があるが、第２配管１５の先端開口１６を
散気ノズル７より上方に配置することで、担体４は、散
気ノズル７から排出される空気により上昇させられるこ
ととなる。このため、処理槽３の底面に担体４が溜まる
ことが十分に防止される。In FIG. 1, the second pipe 15 extends from the carrier discharge port 14 and penetrates the side wall 3b of the processing tank 3.
Here, the tip end opening 16 of the second pipe 15 is the aeration nozzle 7
It is preferably above and below the drainage outlet 8. This is due to the following reasons. That is, since the carrier 4 has a larger specific gravity than water, it tends to settle and collect on the bottom surface of the processing tank 3. However, by disposing the tip opening 16 of the second pipe 15 above the aeration nozzle 7, Will be raised by the air discharged from the diffuser nozzle 7. Therefore, the carriers 4 are sufficiently prevented from accumulating on the bottom surface of the processing tank 3.
【００２３】また、第２配管１５の先端開口１６は上向
きであることが好ましい。この場合、散気ノズル７から
排出される空気が第２配管１５の先端開口１６を経て侵
入することを防止できるため、担体４の循環流動が妨げ
られなくなり、担体４を円滑に循環流動させることがで
きる。The tip opening 16 of the second pipe 15 is preferably directed upward. In this case, the air discharged from the air diffuser nozzle 7 can be prevented from entering through the tip opening 16 of the second pipe 15, so that the circulation flow of the carrier 4 is not hindered and the carrier 4 is smoothly circulated and flowed. You can
【００２４】次に、排水処理装置１における排水処理方
法について説明する。Next, a wastewater treatment method in the wastewater treatment equipment 1 will be described.
【００２５】先ず原水導入配管５から処理槽３に原水を
被処理排水として導入し、ブロワを作動する。すると、
ブロワから散気管６、散気ノズル７を経て被処理排水２
に空気が供給され、これにより曝気が行われる。このと
き、空気の上昇エネルギーにより被処理排水２の上昇流
が形成される。そして、処理排水及び担体４は、処理槽
３の排水排出口８から第１配管１２を経て液体サイクロ
ン９の外筒部１０ａに流入する。ここで、第１配管１２
を流れる処理排水の流速が０．０５〜１．０ｍ／ｓとな
るように散気管６に空気を導入することが好ましい。流
速が０．０５ｍ／ｓ未満では、循環流の速度も小さくな
り、担体４の濃度が液体サイクロン９に偏ってしまう傾
向があるからであり、流速が１．０ｍ／ｓを超えると、
担体４が摩耗しやすくなる傾向があるからである。First, raw water is introduced from the raw water introducing pipe 5 into the treatment tank 3 as wastewater to be treated, and the blower is operated. Then,
Waste water to be treated 2 from the blower through the air diffuser 6 and the air diffuser nozzle 7.
Is supplied with air, which causes aeration. At this time, the rising flow of the wastewater 2 to be treated is formed by the rising energy of the air. Then, the treated wastewater and the carrier 4 flow into the outer cylinder portion 10a of the liquid cyclone 9 from the wastewater discharge port 8 of the treatment tank 3 through the first pipe 12. Here, the first pipe 12
It is preferable to introduce air into the air diffusing pipe 6 so that the flow velocity of the treated wastewater flowing through the pipe is 0.05 to 1.0 m / s. This is because when the flow velocity is less than 0.05 m / s, the velocity of the circulating flow also becomes small, and the concentration of the carrier 4 tends to be biased toward the liquid cyclone 9, and when the flow velocity exceeds 1.0 m / s,
This is because the carrier 4 tends to be easily worn.
【００２６】液体サイクロン９の外筒部１０ａに流入し
た処理排水及び担体４は、内筒部１０ｂの周りを回転
し、担体４はその遠心力により外筒部１０ａの内壁に集
められる。こうして液体サイクロン９で担体４が分離さ
れ、分離された担体４は、円錐部１１、担体排出口１４
を経て液体サイクロン９から排出され、第２配管１５を
経て処理槽３の下部に流入する。こうして処理槽３と液
体サイクロン９との間に循環流が形成される。このた
め、処理排水を液体サイクロン９に流入させるべく液体
サイクロン９の後段に沈殿槽を設ける必要がない。ま
た、液体サイクロン９から処理槽３に担体４を戻すのに
別途動力を必要としない。従って、排水処理装置１を小
型化できると共に、ランニングコストを大幅に低減する
ことができる。The treated wastewater and the carrier 4 flowing into the outer cylinder 10a of the hydrocyclone 9 rotate around the inner cylinder 10b, and the carrier 4 is collected on the inner wall of the outer cylinder 10a by its centrifugal force. In this way, the carrier 4 is separated by the liquid cyclone 9, and the separated carrier 4 has a conical portion 11 and a carrier discharge port 14.
The liquid is discharged from the liquid cyclone 9 through the second pipe 15 and flows into the lower portion of the processing tank 3 through the second pipe 15. In this way, a circulating flow is formed between the processing tank 3 and the liquid cyclone 9. Therefore, it is not necessary to provide a settling tank in the latter stage of the liquid cyclone 9 in order to allow the treated wastewater to flow into the liquid cyclone 9. Further, no separate power is required to return the carrier 4 from the liquid cyclone 9 to the processing tank 3. Therefore, the wastewater treatment device 1 can be downsized, and the running cost can be significantly reduced.
【００２７】次に、本発明の排水処理装置の第２実施形
態について図２を参照して説明する。なお、図２におい
て、図１と同一又は同等の構成要素については同一の符
号を付し、重複する説明は省略する。Next, a second embodiment of the waste water treatment equipment of the present invention will be described with reference to FIG. Note that, in FIG. 2, the same or equivalent components as those in FIG. 1 are denoted by the same reference numerals, and overlapping description will be omitted.
【００２８】図２は、本発明の排水処理装置の第２実施
形態を概略的に示す断面図である。図２に示すように、
本実施形態の排水処理装置２１は、先ず処理槽３の内部
を第１室２２と第２室２３とに仕切る仕切部材２４を有
し、第１室２２の下部に散気管６を有し、第２室２３に
液体サイクロン９を収容する点で第１実施形態の排水処
理装置１と相違する。FIG. 2 is a sectional view schematically showing a second embodiment of the waste water treatment equipment of the present invention. As shown in FIG.
The wastewater treatment device 21 of the present embodiment first has a partition member 24 that partitions the interior of the treatment tank 3 into a first chamber 22 and a second chamber 23, and has an air diffuser 6 at the bottom of the first chamber 22, The wastewater treatment apparatus 1 of the first embodiment is different in that the liquid cyclone 9 is housed in the second chamber 23.
【００２９】また、排水処理装置２１は、仕切部材２４
がその上部に排水排出口８を有し、仕切部材２４が第１
室２２の下部と第２室２３の下部とを連通させる開口２
５を有する点でも排水処理装置１と相違する。In addition, the waste water treatment device 21 includes a partition member 24.
Has a drainage outlet 8 on its upper part, and the partition member 24 is the first
Opening 2 that connects the lower part of the chamber 22 and the lower part of the second chamber 23
5 also differs from the wastewater treatment equipment 1.
【００３０】従って、排水処理装置２１において、原水
導入配管５から処理槽３に原水を被処理排水として導入
し、ブロワを作動すると、ブロワから散気管６、散気ノ
ズル７を経て第１室２２内の被処理排水２に空気が供給
され、これにより曝気が行われる。このとき、空気の上
昇エネルギーにより被処理排水２の上昇流が形成され
る。そして、処理排水及び担体４は、仕切部材２４の排
水排出口８から配管２６を経て液体サイクロン９の外筒
部１０ａに流入し、液体サイクロン９で担体４が分離さ
れ、分離された担体４は、円錐部１１、担体排出口１４
を経て液体サイクロン９から排出され、第２室２３の下
部から仕切部材２４の開口２５を通って第１室２２の下
部に流入する。こうして第１室２２と液体サイクロン９
との間に循環流が形成される。このため、処理排水を液
体サイクロン９に流入させるべく液体サイクロン９の後
段に沈殿槽を設ける必要がない。また、液体サイクロン
９から第１室２２に担体４を戻すのに別途動力を必要と
しない。従って、排水処理装置２１を小型化できると共
に、ランニングコストを大幅に低減することができる。
なお、配管２６を流れる流速が０．０５〜１．０ｍ／ｓ
となるよう散気管６に空気を導入するのは、第１実施形
態の場合と同じである。Therefore, in the wastewater treatment equipment 21, when raw water is introduced as raw water to be treated from the raw water introduction pipe 5 into the treatment tank 3 and the blower is operated, the blower is operated to pass through the diffuser pipe 6 and the diffuser nozzle 7 to the first chamber 22. Air is supplied to the wastewater 2 to be treated, and aeration is performed by this. At this time, the rising flow of the wastewater 2 to be treated is formed by the rising energy of the air. Then, the treated wastewater and the carrier 4 flow from the drainage discharge port 8 of the partition member 24 into the outer cylindrical portion 10a of the liquid cyclone 9 through the pipe 26, the carrier 4 is separated by the liquid cyclone 9, and the separated carrier 4 is , Cone 11, carrier outlet 14
Then, the liquid is discharged from the liquid cyclone 9 and flows into the lower part of the first chamber 22 from the lower part of the second chamber 23 through the opening 25 of the partition member 24. Thus, the first chamber 22 and the hydrocyclone 9
A circulating flow is formed between and. Therefore, it is not necessary to provide a settling tank in the latter stage of the liquid cyclone 9 in order to allow the treated wastewater to flow into the liquid cyclone 9. Further, no separate power is required to return the carrier 4 from the liquid cyclone 9 to the first chamber 22. Therefore, the wastewater treatment device 21 can be downsized and the running cost can be significantly reduced.
The flow velocity of the pipe 26 is 0.05 to 1.0 m / s.
The air is introduced into the air diffuser 6 so as to be the same as in the case of the first embodiment.
【００３１】また、第１室２２と第２室２３との間には
仕切部材２４が設けられている。このため、仕切部材２
４に開口２５が形成されていても、散気ノズル７から排
出される空気が開口２５を通して第２室２３に侵入する
ことが十分に防止される。従って、空気により担体４の
流れが妨げられず、担体４が円滑に循環流動することと
なる。A partition member 24 is provided between the first chamber 22 and the second chamber 23. Therefore, the partition member 2
Even if the opening 25 is formed in 4, the air discharged from the air diffusion nozzle 7 is sufficiently prevented from entering the second chamber 23 through the opening 25. Therefore, the flow of the carrier 4 is not obstructed by the air, and the carrier 4 smoothly circulates and flows.
【００３２】本発明は、前述した実施形態に限定される
ものではない。例えば第２実施形態の排水処理装置２１
においては、処理槽３の内部に仕切部材２４が設けられ
ているが、仕切部材２４は、空気が第２室２３に侵入す
ることを防止するために設けられたものである。従っ
て、空気の侵入を防止する必要がない場合、例えば液体
サイクロン９の担体排出口１４に配管を接続して第１室
２２に導くようにした場合は、仕切部材２４は不要であ
る。この場合、担体排出口１４に接続した配管の先端開
口が上向きであることが好ましいのは、第１実施形態の
場合と同じである。The present invention is not limited to the above embodiment. For example, the wastewater treatment device 21 of the second embodiment
In the above, the partition member 24 is provided inside the processing tank 3, but the partition member 24 is provided in order to prevent air from entering the second chamber 23. Therefore, when it is not necessary to prevent the invasion of air, for example, when a pipe is connected to the carrier discharge port 14 of the hydrocyclone 9 to guide it to the first chamber 22, the partition member 24 is unnecessary. In this case, it is the same as in the case of the first embodiment that the tip opening of the pipe connected to the carrier discharge port 14 is preferably directed upward.
【００３３】また、上記第１および第２実施形態では、
ブロワにより処理槽３に空気を導入して排水の好気処理
を行っているが、空気に代えて窒素を導入し、排水の嫌
気処理を行うようにしてもよい。In the first and second embodiments described above,
Although air is introduced into the treatment tank 3 by a blower to perform aerobic treatment of wastewater, nitrogen may be introduced instead of air to perform anaerobic treatment of wastewater.
【００３４】[0034]
【発明の効果】以上説明したように本発明の排水処理装
置によれば、被処理排水を曝気することにより処理槽又
は第１室と液体サイクロンとの間に循環流が形成される
ため、液体サイクロンの後段に、液体サイクロンに処理
排水を流水させるための沈殿槽を設ける必要がなく、ま
た、担体を処理槽に戻すのに別途動力を必要としない。
このため、排水処理装置を小型化でき且つランニングコ
ストを十分に低減することができる。As described above, according to the wastewater treatment apparatus of the present invention, a circulation flow is formed between the treatment tank or the first chamber and the liquid cyclone by aeration of the wastewater to be treated, so that the liquid It is not necessary to provide a settling tank for flowing the treatment wastewater to the liquid cyclone in the latter stage of the cyclone, and no separate power is required to return the carrier to the treatment tank.
Therefore, the wastewater treatment device can be downsized and the running cost can be sufficiently reduced.
【図１】本発明の排水処理装置に係る一実施形態を概略
的に示す断面図である。FIG. 1 is a cross-sectional view schematically showing an embodiment of a wastewater treatment device of the present invention.
【図２】本発明の排水処理装置に係る他の実施形態を概
略的に示す断面図である。FIG. 2 is a sectional view schematically showing another embodiment of the wastewater treatment device of the present invention.
【図３】従来の排水処理装置を示す断面図である。FIG. 3 is a cross-sectional view showing a conventional wastewater treatment device.
１，２１…排水処理装置、２…被処理排水、３…処理
槽、４…担体、６…散気管（曝気手段）、７…散気ノズ
ル（曝気手段）、８…排水排出口、９…液体サイクロ
ン、１２…第１配管、１５…第２配管、１６…先端開
口、２２…第１室、２３…第２室、２４…仕切部材、２
５…開口。1, 21 ... Wastewater treatment device, 2 ... Wastewater to be treated, 3 ... Treatment tank, 4 ... Carrier, 6 ... Air diffuser (aeration means), 7 ... Aeration nozzle (aeration means), 8 ... Wastewater discharge port, 9 ... Hydrocyclone, 12 ... First pipe, 15 ... Second pipe, 16 ... Tip opening, 22 ... First chamber, 23 ... Second chamber, 24 ... Partition member, 2
5 ... Opening.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D003 AA14 AB02 BA02 CA10 DA11 DA14 DA15 EA14 EA23 EA30 4D037 AA12 AB02 AB03 AB17 AB18 BA28 4D053 AA03 AB04 BA01 BB02 BC01 BD04 CD13 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 4D003 AA14 AB02 BA02 CA10 DA11 DA14 DA15 EA14 EA23 EA30 4D037 AA12 AB02 AB03 AB17 AB18 BA28 4D053 AA03 AB04 BA01 BB02 BC01 BD04 CD13
Claims (4)
用いて被処理排水を処理し、前記処理槽で得られる処理
排水と前記担体とを液体サイクロンで分離し、分離した
前記担体を前記処理槽に戻す排水処理装置において、 前記被処理排水を曝気する曝気手段と、 前記処理槽の上部と前記液体サイクロンとを連通させる
第１配管と、 前記液体サイクロンと前記処理槽の下部とを連通させる
第２配管と、を備えることを特徴とする排水処理装置。1. A treatment wastewater is treated in a treatment tank using a carrier having a larger specific gravity than water, the treatment wastewater obtained in the treatment tank and the carrier are separated by a liquid cyclone, and the separated carrier is In the wastewater treatment device for returning to the treatment tank, an aeration means for aerating the wastewater to be treated, a first pipe for communicating the upper portion of the treatment tank with the liquid cyclone, and the liquid cyclone and the lower portion of the treatment tank are provided. A wastewater treatment device comprising: a second pipe communicating with the second pipe.
し、その先端開口が上向きになっていることを特徴とす
る請求項１に記載の排水処理装置。2. The wastewater treatment equipment according to claim 1, wherein the second pipe penetrates a wall surface of the treatment tank, and an end opening of the second pipe faces upward.
用いて被処理排水を処理し、前記処理槽で得られる処理
排水と前記担体とを液体サイクロンで分離し、分離した
前記担体を前記処理槽に戻す排水処理装置において、 前記処理槽を第１室と第２室とに仕切る仕切部材と、 前記第１室内で前記被処理排水を曝気する曝気手段と、 前記第１室の上部と前記液体サイクロンとを連通させる
配管とを備え、 前記第１室の下部と前記第２室の下部とが、前記仕切部
材に形成される開口を通して連通していることを特徴と
する排水処理装置。3. The treated wastewater is treated using a carrier having a specific gravity larger than that of water in the treatment tank, the treated wastewater obtained in the treatment tank and the carrier are separated by a liquid cyclone, and the separated carrier is separated. In the wastewater treatment device for returning to the treatment tank, a partition member for partitioning the treatment tank into a first chamber and a second chamber, an aeration means for aerating the wastewater to be treated in the first chamber, and an upper part of the first chamber And a pipe for communicating the liquid cyclone with each other, and a lower portion of the first chamber and a lower portion of the second chamber communicate with each other through an opening formed in the partition member. .
いることを特徴とする請求項１〜３のいずれか一項に記
載の排水処理装置。4. The wastewater treatment equipment according to claim 1, wherein the top of the liquid cyclone is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001280282A JP4926349B2 (en) | 2001-09-14 | 2001-09-14 | Wastewater treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001280282A JP4926349B2 (en) | 2001-09-14 | 2001-09-14 | Wastewater treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| JP2003080284A true JP2003080284A (en) | 2003-03-18 |
| JP4926349B2 JP4926349B2 (en) | 2012-05-09 |
Family
ID=19104309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001280282A Expired - Fee Related JP4926349B2 (en) | 2001-09-14 | 2001-09-14 | Wastewater treatment equipment |
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| JP2011507682A (en) * | 2007-12-19 | 2011-03-10 | サウジ アラビアン オイル カンパニー | Suspended solvent granular activated carbon membrane bioreactor system and process |
| CN101973674A (en) * | 2010-10-19 | 2011-02-16 | 天津市环境保护科学研究院 | Hydrocyclone solid-liquid separation type SBR-technique domestic sewage treatment device and application method thereof |
| CN101973674B (en) * | 2010-10-19 | 2013-01-02 | 天津市环境保护科学研究院 | Hydrocyclone solid-liquid separation type SBR-technique domestic sewage treatment device and application method thereof |
| JP2020203229A (en) * | 2019-06-14 | 2020-12-24 | アクアインテック株式会社 | Solid-liquid separation system |
| JP7282366B2 (en) | 2019-06-14 | 2023-05-29 | アクアインテック株式会社 | Solid-liquid separation system |
| CN112642182A (en) * | 2020-12-18 | 2021-04-13 | 同济大学 | Sand-water separation system for efficiently separating sand particles in sewage and use method |
| CN112642182B (en) * | 2020-12-18 | 2021-11-12 | 同济大学 | Sand-water separation system for efficiently separating sand particles in sewage and use method |
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