JPH0839088A - Purifying tank and operation thereof - Google Patents
Purifying tank and operation thereofInfo
- Publication number
- JPH0839088A JPH0839088A JP6181645A JP18164594A JPH0839088A JP H0839088 A JPH0839088 A JP H0839088A JP 6181645 A JP6181645 A JP 6181645A JP 18164594 A JP18164594 A JP 18164594A JP H0839088 A JPH0839088 A JP H0839088A
- Authority
- JP
- Japan
- Prior art keywords
- septic tank
- membrane separation
- aeration
- operating
- separation device
- 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
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)
- Treatment Of Biological Wastes In General (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は家庭からの廃水や工場廃
水等を生物的に処理する浄化槽及びその運転方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a septic tank for biologically treating domestic wastewater, industrial wastewater and the like, and a method of operating the same.
【０００２】[0002]
【従来の技術】便所、洗面所、風呂及び厨房などの家庭
からの廃水や工場廃水等を生物的に処理する浄化槽の運
転方法として、特開平４−１０８６００号公報に曝気装
置と膜分離装置とを併用した方法が提案されている。2. Description of the Related Art As an operating method of a septic tank for biologically treating domestic wastewater such as toilets, washrooms, baths and kitchens, industrial wastewater, etc., Japanese Patent Application Laid-Open No. 4-108600 discloses an aerator and a membrane separator. A method using both is proposed.
【０００３】上記先行技術には、連続的に廃水が流入す
る生物反応槽内の最高水位（H.W.L.）から最低水位（L.
W.L.）に至るまでは曝気と濾過とを同時に行う好気性処
理を行い、逆に最低水位（L.W.L.）から最高水位（H.W.
L.）に至るまでは曝気も濾過も行わない嫌気性処理を行
うようにしたものである。In the above prior art, the highest water level (HWL) to the lowest water level (L.
Aerobic treatment that performs aeration and filtration at the same time up to WL), conversely from the lowest water level (LWL) to the highest water level (HW
Up to L.), anaerobic treatment without aeration and filtration was performed.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来の運転方
法において、嫌気性処理と好気性処理とを交互にバラン
スよく行うには生物反応槽内に廃水が略一定量づつ連続
して流入することが条件となる。しかしながら、通常の
浄化槽は１日のうちのほぼ決まった時間にピーク流入が
あるのが普通であり、バランスのよい処理を行えない。
また、従来の運転方法では最低水位（L.W.L.）から最高
水位（H.W.L.）に至るまで嫌気性処理を行うようにして
いるが、この間は水位が上昇している以上浄化槽内に廃
水が流入しており、この廃水の流入に伴って空気（酸
素）も供給され、ピーク流入時には短時間で多量の廃水
が流入するため、嫌気処理時間の設定が考慮されておら
ず充分な嫌気性処理が行えない。In the above-mentioned conventional operation method, in order to perform the anaerobic treatment and the aerobic treatment alternately in a well-balanced manner, the waste water continuously flows into the biological reaction tank in a substantially constant amount. Is a condition. However, a normal septic tank usually has a peak inflow at a substantially fixed time of the day, and cannot perform well-balanced treatment.
Also, in the conventional operation method, anaerobic treatment is performed from the lowest water level (LWL) to the highest water level (HWL), but during this time the wastewater is flowing into the septic tank as the water level rises. Air (oxygen) is also supplied along with the inflow of this wastewater, and a large amount of wastewater flows in in a short time at the time of peak inflow, so the setting of the anaerobic treatment time is not taken into consideration and sufficient anaerobic treatment cannot be performed.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決すべく本
発明に係る浄化槽は、曝気装置を内部に配置した生物反
応室と、生物反応室の廃水を透過液と保持液に分離する
膜分離装置とを備えた浄化槽において、この浄化槽は前
記生物反応室内への廃水の流入と最低水位（L.W.L.）を
検知する検知手段と、この検知手段からの信号を受け、
所定時間の廃水の流入を検知し曝気装置と膜分離装置の
運転を制御する制御部とを備えたものとした。In order to solve the above problems, a septic tank according to the present invention comprises a biological reaction chamber in which an aeration device is arranged, and a membrane separation for separating waste water of the biological reaction chamber into a permeate and a retentate. In the septic tank equipped with a device, the septic tank receives a signal from the detecting means for detecting the inflow of waste water into the biological reaction chamber and the minimum water level (LWL), and a signal from this detecting means,
It was provided with a control unit that detects the inflow of waste water for a predetermined time and controls the operation of the aeration device and the membrane separation device.
【０００６】前記制御部の出力信号としては、例えば曝
気装置の運転を所定時間作動させるとともに膜分離装置
の濾過運転を連続的に作動させる信号、曝気装置の運転
と膜分離装置の濾過運転を連動させて所定時間作動させ
る信号、曝気装置の運転を所定時間作動させた後に濾過
運転を所定時間作動させる信号等とする。As the output signal of the control unit, for example, a signal for operating the aeration device for a predetermined time and continuously operating the filtration operation of the membrane separation device, and the operation of the aeration device and the filtration operation of the membrane separation device are interlocked. A signal for operating the aeration device for a predetermined time, a signal for operating the aeration device for a predetermined time and then operating a filtration operation for a predetermined time, and the like.
【０００７】また、本発明に係る浄化槽の運転方法は、
生物反応槽内に曝気装置と膜分離装置を配置し、曝気装
置によって生物反応槽内の廃水に空気を吹込むと共に攪
拌し、膜分離装置によって活性汚泥が含まれる生物反応
槽内の廃水を透過液と保持液に分離するようにした浄化
槽の運転方法において、前記曝気装置の運転及び前記膜
分離装置の運転は生物反応槽内に一定量以上の廃水の流
入が継続している間に行うようにした。The method of operating the septic tank according to the present invention is
An aeration device and a membrane separation device are placed in the biological reaction tank, and the aeration device blows air into the waste water in the biological reaction tank and agitates it, and the membrane separation device permeates the waste water in the biological reaction tank containing activated sludge. In the method of operating the septic tank so that the liquid and the retentate are separated, the operation of the aeration device and the operation of the membrane separation device should be performed while the inflow of a certain amount or more of the waste water continues in the biological reaction tank. I chose
【０００８】生物反応槽内に一定量以上の廃水の流入が
継続している間に行う曝気装置及び膜分離装置の具体的
な運転方法としては、曝気装置の運転は間欠的に行い、
前記膜分離装置の運転は連続的に行う方法、曝気装置の
運転及び前記膜分離装置の運転とも間欠的に行う方法が
あり、後者の方法については更に曝気装置の運転と膜分
離装置の運転とを同期して行う方法、膜分離装置の運転
を曝気装置の運転の直前に行う方法が好ましい。As a concrete operation method of the aeration device and the membrane separation device while the inflow of a certain amount or more of waste water continues in the biological reaction tank, the operation of the aeration device is performed intermittently.
There is a method of performing the operation of the membrane separation device continuously, a method of performing the operation of the aeration device and the operation of the membrane separation device intermittently, and regarding the latter method, further operation of the aeration device and operation of the membrane separation device. It is preferable that the method is performed in synchronism with the above, and the method of operating the membrane separation device immediately before the operation of the aeration device.
【０００９】[0009]
【作用】生物反応槽内に一定量以上の廃水の流入が継続
している間は、廃水の流入に伴って空気（酸素）が供給
されているので、この間に曝気装置の運転を間欠的に行
う。また廃水が流入している間は水位が上昇するので、
この間に膜分離装置の運転（濾過）を行う。[Operation] Since air (oxygen) is supplied with the inflow of waste water while the inflow of waste water of a certain amount or more continues in the biological reaction tank, the aeration device is intermittently operated during this period. To do. Also, since the water level rises while the wastewater is flowing in,
During this period, the membrane separator is operated (filtered).
【００１０】[0010]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。ここで、図１は本発明方法を実施する浄化槽
の一例を示す断面図であり、浄化槽は生物反応槽１の内
部にブロアＢを備えた曝気装置２とポンプＰを備えた膜
分離装置３及び水位センサ４が配置されている。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a cross-sectional view showing an example of a septic tank for carrying out the method of the present invention, and the septic tank comprises an aeration device 2 equipped with a blower B inside a biological reaction tank 1 and a membrane separation device 3 equipped with a pump P. A water level sensor 4 is arranged.
【００１１】前記曝気装置２のブロアＢ及び膜分離装置
３のポンプＰは生物反応槽１に廃水が流入している間に
駆動するように制御装置９によって制御されるが、水位
センサ４からの信号があった場合には優先的にオン・オ
フされる。即ち、水位センサ４が最低水位（L.W.L.）を
検知した場合には、ブロアＢ及びポンプＰの駆動を停止
し、水位センサ４が最高水位（ H.W.L.）を検知した場
合には、ブロアＢ及びポンプＰを強制的に駆動するの
で、通常廃水の流入が行われない深夜などは廃水は最低
水位（L.W.L.）となっており、ブロアＢ及びポンプＰの
駆動は停止している。The blower B of the aeration device 2 and the pump P of the membrane separation device 3 are controlled by the control device 9 so as to be driven while the wastewater is flowing into the biological reaction tank 1, but the water level sensor 4 When there is a signal, it is turned on / off preferentially. That is, when the water level sensor 4 detects the lowest water level (LWL), the drive of the blower B and the pump P is stopped, and when the water level sensor 4 detects the highest water level (HWL), the blower B and the pump P are stopped. Since the wastewater is forcedly driven, the wastewater is at the minimum water level (LWL) at midnight when the inflow of the wastewater is not normally performed, and the drive of the blower B and the pump P is stopped.
【００１２】廃水の流入が行われる昼間においては、制
御部９において、流入水により水位センサ４が最低水位
（L.W.L.）よりある一定の高い水位を検知すると、水位
センサ４と連動したタイマーを作動させ所定時間経過後
の水位上昇の有無を検知し、廃水が流入しているか否か
を判断する。そして、廃水の流入があると判断すると、
曝気装置及び膜分離装置の運転を行う。ここで、曝気装
置２のブロアＢの運転は、廃水の流入が確認されると運
転タイマーがＯＮとなって開始され、所定時間経過後タ
イマーがＯＦＦとなったとなった時点で運転を停止さ
せ、また、膜分離装置３のポンプＰの運転も運転タイマ
ーを用いて制御を行う。During the daytime when the waste water flows in, when the water level sensor 4 detects a certain level higher than the minimum water level (LWL) by the inflow water, the controller 9 activates a timer linked with the water level sensor 4. The presence or absence of rise in water level after a lapse of a predetermined time is detected, and it is determined whether wastewater is flowing in. And when it is judged that there is an inflow of wastewater,
Operate the aerator and membrane separator. Here, the operation of the blower B of the aeration device 2 is started when the operation timer is turned on when the inflow of waste water is confirmed, and is stopped when the timer is turned off after a predetermined time has passed, Further, the operation of the pump P of the membrane separation device 3 is also controlled by using the operation timer.
【００１３】また、一定量以上の廃水の流入が確認され
ない場合には曝気装置及び膜分離装置の運転を停止す
る。ただし、曝気装置の運転タイマーによる運転中で間
欠運転を行っており、生物処理室内が嫌気状態となるよ
う曝気装置の運転停止が所定時間設定されている際に廃
水の流入が確認された場合には、運転タイマーによる信
号を優先し、所定の運転停止時間を確保した後、曝気装
置及び膜分離装置の運転を開始する。これは、生物反応
における嫌気反応時間を確保しないまま廃水の流入によ
るセンサからの信号を優先させて曝気運転を行うと、嫌
気分解反応が進まず十分な脱窒が行われないまま処理水
として濾過処理され放流されるからである。If it is not confirmed that a certain amount of waste water has flowed in, the operation of the aeration device and the membrane separation device is stopped. However, if the inflow of wastewater is confirmed when the aeration device is operating intermittently during operation by the operation timer and the aeration device is set to stop for a predetermined time so that the biological treatment chamber becomes anaerobic, Starts the operation of the aeration device and the membrane separation device after giving priority to the signal from the operation timer and ensuring a predetermined operation stop time. This is because if the aeration operation is performed by prioritizing the signal from the sensor due to the inflow of waste water without securing the anaerobic reaction time in the biological reaction, the anaerobic decomposition reaction does not proceed and it is filtered as treated water without sufficient denitrification. This is because they are processed and released.
【００１４】膜分離装置３は中空糸状膜等の分離膜５
と、集水部６とこの集水部６につながる吸引管７とを備
え、ポンプＰによって吸引した透過液を処理水として排
出する。尚、殺菌槽８に受けて殺菌の後に排出すること
も可能である。The membrane separation device 3 is a separation membrane 5 such as a hollow fiber membrane.
And a suction pipe 7 connected to the water collection unit 6, and the permeated liquid sucked by the pump P is discharged as treated water. It is also possible to receive the sterilization tank 8 and sterilize it before discharging.
【００１５】以上の浄化槽を用いた運転方法を図２に基
づいて説明する。この運転方法にあっては、ピーク流入
時のように、生物反応槽１内に一定量以上の廃水の流入
が継続している間に、曝気装置２の運転及び膜分離装置
３の運転を行うようにし、特に曝気装置２の運転は間欠
的に行うことで、ランニングコストを低く抑え、更に膜
分離装置３の濾過運転は連続的に行うことで、廃水の流
入に合せて処理水を放出することで生物反応槽１内の水
位が略一定となるようにしている。このように水位を略
一定となるようにすることで、浄化槽をコンパクトにす
ることができる。An operation method using the above septic tank will be described with reference to FIG. In this operating method, the operation of the aeration device 2 and the operation of the membrane separation device 3 are performed while the inflow of a certain amount of waste water or more continues in the biological reaction tank 1 as in the peak inflow. In particular, the operation of the aeration device 2 is intermittently performed to reduce the running cost, and the filtration operation of the membrane separation device 3 is continuously performed to discharge the treated water in accordance with the inflow of waste water. As a result, the water level in the biological reaction tank 1 is made substantially constant. By making the water level substantially constant in this way, the septic tank can be made compact.
【００１６】図３は別実施例に係る浄化槽の運転方法を
説明したグラフであり、この実施例にあっては曝気装置
２の運転及び膜分離装置３の運転とも間欠的に行い、且
つ夫々の運転を同期して行うようにしている。このよう
にすることで、曝気による掻き取り効果が得られる間だ
け濾過運転を行うので、膜面に強固なケーク層が形成さ
れることがなく、安定した濾過特性が得られる。また、
膜の稼働率は小さくても透過流束は大きくなるので、処
理効率は向上する。FIG. 3 is a graph for explaining the method of operating the septic tank according to another embodiment. In this embodiment, the operation of the aeration device 2 and the operation of the membrane separation device 3 are performed intermittently, and each of them is performed. I try to drive in synchronization. By doing so, the filtration operation is performed only while the scraping effect by aeration is obtained, so that a strong cake layer is not formed on the membrane surface, and stable filtration characteristics are obtained. Also,
Even if the operating rate of the membrane is small, the permeation flux is large, so that the treatment efficiency is improved.
【００１７】図４は更なる別実施例に係る浄化槽の運転
方法を説明したグラフであり、この実施例にあっては曝
気装置２の運転及び膜分離装置３の運転とも間欠的に行
うが、両者を同期させず、膜分離装置２の運転を曝気装
置３の運転の直前に行うようにしている。このようにす
ることで、膜分離装置によって濾過するのは攪拌による
濁りのない上澄み液ということになるので、分離膜に目
詰りが生じにくく長期に安定した濾過特性が得られる。FIG. 4 is a graph for explaining the method of operating the septic tank according to still another embodiment. In this embodiment, the operation of the aeration device 2 and the operation of the membrane separation device 3 are performed intermittently. The two are not synchronized, and the operation of the membrane separation device 2 is performed immediately before the operation of the aeration device 3. By doing so, since it is the supernatant liquid that does not become turbid due to stirring that is filtered by the membrane separation device, clogging of the separation membrane is unlikely to occur and stable filtration characteristics can be obtained for a long period of time.
【００１８】[0018]
【発明の効果】以上に説明した如く本発明によれば、ピ
ーク流入時等の生物反応槽内に一定量以上の廃水の流入
が継続している間に、曝気装置の運転を行うようにした
ので、廃水の流入とともに持ち込まれる空気も好気性処
理に利用でき、生物処理を効率よく行うことができる。
また、生物反応槽内に一定量以上の廃水の流入が継続し
ている間に、膜分離装置の運転を行うようにしたので、
生物反応槽内の水位上昇を抑え一定の水位を維持でき、
したがって浄化槽の小型化を達成できる。As described above, according to the present invention, the aeration device is operated while the inflow of the waste water of a certain amount or more continues in the biological reaction tank at the time of peak inflow. Therefore, the air brought in with the inflow of wastewater can also be used for aerobic treatment, and biological treatment can be performed efficiently.
Also, since the membrane separation device is operated while the inflow of a certain amount of waste water or more continues in the biological reaction tank,
It can suppress the rise of water level in the biological reaction tank and maintain a constant water level,
Therefore, miniaturization of the septic tank can be achieved.
【００１９】特に、曝気装置の運転と膜分離装置の運転
を同時に行うことで、曝気による掻き取り効果によって
分離膜の透過流束の低下を抑制することができる。一
方、膜分離装置の運転を曝気装置の運転の直前に行うよ
うにすることで、膜分離装置によって廃水の上澄み液を
濾過することになり、分離膜の目詰りを防止することが
で且つ脱窒の進んだ処理水を放流することができる。Particularly, by simultaneously operating the aeration device and the membrane separation device, it is possible to suppress the reduction of the permeation flux of the separation membrane due to the scraping effect by the aeration. On the other hand, by operating the membrane separation device immediately before the operation of the aeration device, the supernatant liquid of the wastewater is filtered by the membrane separation device, which can prevent the separation membrane from being clogged. It is possible to discharge the treated water that has advanced nitriding.
【図１】本発明方法を実施する浄化槽の一例を示す断面
図FIG. 1 is a sectional view showing an example of a septic tank for carrying out the method of the present invention.
【図２】本発明に係る浄化槽の運転方法を説明したグラ
フFIG. 2 is a graph illustrating a method of operating a septic tank according to the present invention.
【図３】別実施例に係る浄化槽の運転方法を説明したグ
ラフFIG. 3 is a graph illustrating a method of operating a septic tank according to another embodiment.
【図４】別実施例に係る浄化槽の運転方法を説明したグ
ラフFIG. 4 is a graph illustrating a method for operating a septic tank according to another embodiment.
１…生物反応槽、２…曝気装置、３…膜分離装置、４…
水位センサ、５…分離膜、Ｂ…ブロア、Ｐ…ポンプ。1 ... Biological reaction tank, 2 ... Aeration device, 3 ... Membrane separation device, 4 ...
Water level sensor, 5 ... Separation membrane, B ... Blower, P ... Pump.
───────────────────────────────────────────────────── 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 ＺＡＢ ５０１ Ｆ ５０２ Ｅ ５０３ Ｃ ５０４ Ａ Ｃ (72)発明者 瓜生 勝嗣 福岡県北九州市小倉北区中島２丁目１番１ 号 東陶機器株式会社内 (72)発明者 奥野 祐一 福岡県北九州市小倉北区中島２丁目１番１ 号 東陶機器株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical display location C02F 9/00 ZAB 501 F 502 E 503 C 504 AC (72) Inventor Uryu Katsushi Fukuoka Kitakyushu 2-1-1 Nakajima, Kokurakita-ku, Tochi-kiki Co., Ltd. (72) Inventor Yuichi Okuno 2-1-1 Nakajima, Kokura-kita-ku, Kitakyushu, Fukuoka
Claims (9)
と、生物反応室の廃水を透過液と保持液に分離する膜分
離装置とを備えた浄化槽において、この浄化槽は前記生
物反応室内への廃水の流入と最低水位（L.W.L.）を検知
する検知手段と、この検知手段からの信号を受け、所定
時間の廃水の流入を検知し曝気装置及び膜分離装置の運
転を制御する制御部とを備えていることを特徴とする浄
化槽。1. A septic tank comprising a bioreaction chamber having an aeration device disposed therein and a membrane separation device for separating wastewater of the bioreaction chamber into a permeate and a retentate, the septic tank being installed in the bioreaction chamber. Equipped with a detection unit that detects the inflow of wastewater and the minimum water level (LWL), and a control unit that receives the signal from this detection unit and detects the inflow of wastewater for a predetermined time and controls the operation of the aeration device and the membrane separation device. A septic tank that is characterized by
制御部は、曝気装置の運転を所定時間作動させるととも
に膜分離装置の濾過運転を連続的に作動させる信号を出
力することを特徴とする浄化槽。2. The septic tank according to claim 1, wherein the control unit outputs a signal that operates the aeration device for a predetermined time and continuously operates the filtration operation of the membrane separation device. Septic tank.
制御部は、曝気装置の運転と膜分離装置の濾過運転を連
動させて所定時間作動させる信号を出力することを特徴
とする浄化槽。3. The septic tank according to claim 1, wherein the control unit outputs a signal for interlocking the operation of the aeration device and the filtration operation of the membrane separation device to operate for a predetermined period of time.
制御部は、曝気装置の運転を所定時間作動させた後に濾
過運転を所定時間作動させる信号を出力することを特徴
とする浄化槽。4. The septic tank according to claim 1, wherein the control unit outputs a signal for operating a filtration device for a predetermined time after operating the aeration device for a predetermined time.
配置し、曝気装置によって生物反応槽内の廃水に空気を
吹込むと共に攪拌し、膜分離装置によって活性汚泥が含
まれる生物反応槽内の廃水を透過液と保持液に分離する
ようにした浄化槽の運転方法において、前記曝気装置の
運転及び前記膜分離装置の運転は生物反応槽内に一定量
以上の廃水の流入が継続している間に行うようにしたこ
とを特徴とする浄化槽の運転方法。5. A biological reaction tank in which an aeration device and a membrane separation device are arranged in the biological reaction tank, and air is blown into the waste water in the biological reaction tank by the aeration device and agitated, and activated sludge is contained by the membrane separation device. In the operating method of the septic tank, which is configured to separate the wastewater inside into the permeate and the retentate, the operation of the aeration device and the operation of the membrane separation device are such that a certain amount or more of the wastewater continuously flows into the biological reaction tank. A method of operating a septic tank, which is characterized in that it is carried out while it is in operation.
いて、前記曝気装置の運転は間欠的に行い、曝気運転停
止中に廃水の流入を確認した場合には一定の曝気運転停
止時間を確保した後、曝気運転を行うようにしたことを
特徴とする浄化槽の運転方法。6. The method for operating the septic tank according to claim 5, wherein the aeration device is intermittently operated, and a certain aeration operation stop time is secured when the inflow of waste water is confirmed during the aeration operation stop. The method for operating a septic tank is characterized in that the aeration operation is performed after the operation.
いて、前記曝気装置の運転は間欠的に行い、前記膜分離
装置の運転は連続的に行うようにしたことを特徴とする
浄化槽の運転方法。7. The operation of the septic tank according to claim 5, wherein the aeration device is intermittently operated and the membrane separation device is continuously operated. Method.
いて、前記曝気装置の運転及び前記膜分離装置の運転と
も間欠的且つ同期して行うようにしたことを特徴とする
浄化槽の運転方法。8. The method of operating the septic tank according to claim 5, wherein the operation of the aeration device and the operation of the membrane separation device are performed intermittently and in synchronization with each other.
いて、前記曝気装置の運転及び前記膜分離装置の運転と
も間欠的に行い、更に前記膜分離装置の運転を曝気装置
の運転の直前に行うようにしたことを特徴とする浄化槽
の運転方法。9. The method for operating a septic tank according to claim 5, wherein the operation of the aeration device and the operation of the membrane separation device are performed intermittently, and the operation of the membrane separation device is performed immediately before the operation of the aeration device. A method for operating a septic tank, which is characterized by being performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6181645A JPH0839088A (en) | 1994-08-02 | 1994-08-02 | Purifying tank and operation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6181645A JPH0839088A (en) | 1994-08-02 | 1994-08-02 | Purifying tank and operation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0839088A true JPH0839088A (en) | 1996-02-13 |
Family
ID=16104373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6181645A Pending JPH0839088A (en) | 1994-08-02 | 1994-08-02 | Purifying tank and operation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0839088A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616843B1 (en) | 1998-12-18 | 2003-09-09 | Omnium De Traitement Et De Valorisation | Submerged membrane bioreactor for treatment of nitrogen containing water |
| JP2009514666A (en) * | 2005-11-08 | 2009-04-09 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Combination of membrane filtration / biodegradation filtration |
| CN109661376A (en) * | 2016-09-23 | 2019-04-19 | 栗田工业株式会社 | The bioremediation of drained organic water |
-
1994
- 1994-08-02 JP JP6181645A patent/JPH0839088A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616843B1 (en) | 1998-12-18 | 2003-09-09 | Omnium De Traitement Et De Valorisation | Submerged membrane bioreactor for treatment of nitrogen containing water |
| JP2009514666A (en) * | 2005-11-08 | 2009-04-09 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Combination of membrane filtration / biodegradation filtration |
| JP4902661B2 (en) * | 2005-11-08 | 2012-03-21 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Combination of membrane filtration / biodegradation filtration |
| CN109661376A (en) * | 2016-09-23 | 2019-04-19 | 栗田工业株式会社 | The bioremediation of drained organic water |
| CN109661376B (en) * | 2016-09-23 | 2022-06-17 | 栗田工业株式会社 | Biological treatment method for organic wastewater |
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