JPH0534799Y2 - - Google Patents
Info
- Publication number
- JPH0534799Y2 JPH0534799Y2 JP1986015426U JP1542686U JPH0534799Y2 JP H0534799 Y2 JPH0534799 Y2 JP H0534799Y2 JP 1986015426 U JP1986015426 U JP 1986015426U JP 1542686 U JP1542686 U JP 1542686U JP H0534799 Y2 JPH0534799 Y2 JP H0534799Y2
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- gas
- liquid
- treated
- introduction 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.)
- Expired - Lifetime
Links
- 239000012528 membrane Substances 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 22
- 239000002351 wastewater Substances 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 6
- 239000010802 sludge Substances 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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)
- Activated Sludge Processes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、有機性廃水の処理装置に係わり、
特に、処理槽内に膜モジユールを備えた有機性廃
水の処理装置に関する。[Detailed description of the invention] [Industrial application field] This invention relates to an organic wastewater treatment device.
In particular, the present invention relates to an organic wastewater treatment apparatus that includes a membrane module in a treatment tank.
従来、有機性廃水の処理には、生物処理が行わ
れ、生物処理は、処理反応の条件によつて好気処
理か、嫌気処理に分別されている。
Conventionally, organic wastewater is treated by biological treatment, and biological treatment is classified into aerobic treatment and anaerobic treatment depending on the conditions of the treatment reaction.
好気処理と代表的な方法である活性汚泥処理
は、廃水と空気をよく接触させて好気性生物の働
きによつて廃水中の有機物を酸化・分解する処理
方法であり、沈殿池では汚泥が大量に発生するた
め、一部を余剰汚泥として系外へ排出し、残りは
返送汚泥として再使用するため、処理槽内で汚泥
を高濃度に保持することは困難であつた。 Activated sludge treatment, which is a typical method of aerobic treatment, is a treatment method in which organic matter in wastewater is oxidized and decomposed by the action of aerobic organisms by bringing wastewater into good contact with air. Since a large amount of sludge is generated, a portion is discharged outside the system as surplus sludge, and the rest is reused as return sludge, making it difficult to maintain a high concentration of sludge in the treatment tank.
一方、嫌気性処理は、空気との接触を遮断した
状態で、嫌気性生物の働きによつて、廃水中の有
機物を還元的に分解消化する処理方法であり、高
濃度の有機性廃水の処理に適しているが、処理時
間が長いという問題点があつた。 On the other hand, anaerobic treatment is a treatment method in which organic matter in wastewater is reductively decomposed and digested by the action of anaerobic organisms while preventing contact with air. However, it has the problem of long processing time.
これに対して最近、生物処理と膜を組み合わせ
た処理方法が検討され、微生物をさらに高濃度に
維持しつつ、沈殿池を省き、清澄な処理水を得る
ために、生物処理槽内に膜を組み込んだ処理装置
が提案されている。しかし、この装置では、膜の
汚れが著しく膜の透過水量が低下し、さらに、処
理膜内での液の流動が均一でないため、廃水の処
理が十分に行なわれないという問題があつた。 Recently, a treatment method that combines biological treatment and membranes has been studied, and in order to maintain a higher concentration of microorganisms, eliminate the settling tank, and obtain clear treated water, a membrane is installed inside the biological treatment tank. Integrated processing devices have been proposed. However, this device has the problem that the membrane is extremely fouled and the amount of water permeated through the membrane is reduced, and furthermore, the flow of liquid within the treatment membrane is not uniform, resulting in insufficient treatment of wastewater.
これらを防止するために、大量のガスを膜モジ
ユールの下部から吐出したり、被処理液をポンプ
循環するなどの方法が考えられるが、多大な動力
を必要とする欠点があつた。 In order to prevent these problems, methods such as discharging a large amount of gas from the lower part of the membrane module or circulating the liquid to be treated with a pump have been considered, but these methods have the drawback of requiring a large amount of power.
この考案の目的は、膜モジユールの汚染が少な
く、廃水の処理が十分に行なえる有機性廃水の処
理装置を提供することにある。
The purpose of this invention is to provide an organic wastewater treatment device that can sufficiently treat wastewater with less contamination of the membrane module.
この考案は、膜汚染による透過水量の低下及び
廃水の処理不良が、処理槽内の液流動の不足に起
因することに着眼し、これを低動力で解消するた
め、膜モジユールとして回転平膜を採用し、下部
にガス導入管と被処理液の循環ラインの吐出口を
設け、ガス導入管から吐出するガスの上昇力を利
用して被処理液を前記循環ラインを経由して循環
させるようにしたことを特徴とする。
This idea focuses on the fact that a decrease in the amount of permeated water due to membrane contamination and poor wastewater treatment are caused by insufficient liquid flow in the treatment tank.In order to solve this problem with low power, a rotating flat membrane is used as a membrane module. A gas introduction pipe and a discharge port for a circulation line for the liquid to be treated are provided at the bottom, and the liquid to be treated is circulated through the circulation line by using the rising force of the gas discharged from the gas introduction pipe. It is characterized by what it did.
次に本考案の実施例について説明する。 Next, embodiments of the present invention will be described.
第１図は、本発明の一実施例を示した図で、被
処理液である有機性廃水は、処理槽１上部より流
入し、処理槽１内に浮遊する微生物と接触し、有
機物が分解処理される。処理槽１内下部位置には
膜モジユール２が設置されており、処理液と微生
物は、膜モジユール２で分離され、処理後は管路
７から系外へ排出される。微生物は、処理槽１内
に保持され、高濃度に維持される。 FIG. 1 is a diagram showing one embodiment of the present invention. Organic wastewater, which is the liquid to be treated, flows from the upper part of the treatment tank 1, comes into contact with microorganisms floating in the treatment tank 1, and decomposes organic matter. It is processed. A membrane module 2 is installed in the lower part of the treatment tank 1, and the treatment liquid and microorganisms are separated by the membrane module 2 and discharged from the system through a pipe 7 after treatment. Microorganisms are retained in the treatment tank 1 and maintained at a high concentration.
膜モジユールの形式は、回転平膜２を用いる。
これにより、回転平膜２の汚れを抑制すると共
に、生物処理の効率を向上させることができる。
即ち、回転平膜２を回転させると、回転平膜２表
面に乱流が発生するので、回転平膜２表面が汚染
されにくくなる。この場合、回転平膜２の下部に
設けたガス導入管３からのガスにより被処理液が
被処理液循環ライン６を経由して循環しているの
で、回転平膜２の回転との相乗効果により、更に
乱流が発生し易くなる。また、回転平膜２が回転
することにより処理槽１内の被処理液の攪拌にも
役立つので、生物処理の効率を向上させることが
できる。 The membrane module uses a rotating flat membrane 2.
Thereby, it is possible to suppress contamination of the rotary flat membrane 2 and to improve the efficiency of biological treatment.
That is, when the rotating flat membrane 2 is rotated, turbulence is generated on the surface of the rotating flat membrane 2, so that the surface of the rotating flat membrane 2 is less likely to be contaminated. In this case, the liquid to be treated is circulated via the liquid circulation line 6 by the gas from the gas introduction pipe 3 provided at the lower part of the rotary flat membrane 2, so there is a synergistic effect with the rotation of the rotary flat membrane 2. This makes it even more likely that turbulence will occur. Further, the rotation of the rotating flat membrane 2 also helps in stirring the liquid to be treated in the treatment tank 1, so that the efficiency of biological treatment can be improved.
回転平膜２の設置位置は、処理槽１内の静水圧
を利用できるため、膜処理に要する動力が低減で
きるように、処理槽の下部に設ける。 The rotating flat membrane 2 is installed at the lower part of the processing tank so that the hydrostatic pressure within the processing tank 1 can be utilized and the power required for membrane processing can be reduced.
ガス導入管３は、回転平膜２の下部に設置す
る。ガス源としては、好気処理の場合は空気、酸
素を用いる。また、嫌気処理では、N2などの不
活性ガス、あるいは、処理槽内で発生するCH4や
CO2などのガスも利用できる。処理槽上部を密閉
とし、処理槽上部のガス部４と、ガス導入管３を
結ぶ循環ライン８中にコンプレツサ５を設け、ガ
スを循環することでガスの有効利用が図れる。ガ
ス導入管３から吐出したガスは、上部の回転平膜
２の膜面の汚れをはく離させる効果があるため、
膜面の汚れを防止し、透過水量を維持することが
できる。さらに、このガスのため、処理槽内の液
の攪拌が行われる。 The gas introduction pipe 3 is installed at the bottom of the rotating flat membrane 2. In the case of aerobic treatment, air or oxygen is used as the gas source. In addition, in anaerobic treatment, inert gas such as N 2 or CH 4 or
Gases such as CO 2 can also be used. The upper part of the processing tank is sealed, a compressor 5 is provided in a circulation line 8 connecting the gas section 4 at the upper part of the processing tank and the gas introduction pipe 3, and the gas is circulated, thereby making it possible to effectively utilize the gas. The gas discharged from the gas introduction pipe 3 has the effect of removing dirt from the membrane surface of the upper rotating flat membrane 2.
It prevents fouling of the membrane surface and maintains the amount of permeated water. Furthermore, this gas causes the liquid in the processing tank to be stirred.
被処理液循環ライン６は、回転平膜２の下方で
処理槽１の底部に吐出口９を設け、ガス導入管３
から吐出するガスの上昇力を利用して処理槽１上
部の被処理液を処理槽１外の被処理液循環ライン
６を経由して処理槽１底部に循環させる。これに
より、被処理液の循環がスムーズに行われるの
で、ポンプ動力を省略できる。これにより、処理
槽内での廃水の処理が円滑に行われる。 The to-be-processed liquid circulation line 6 is provided with a discharge port 9 at the bottom of the processing tank 1 below the rotating flat membrane 2, and has a gas introduction pipe 3.
The liquid to be treated in the upper part of the processing tank 1 is circulated to the bottom of the processing tank 1 via the liquid circulation line 6 outside the processing tank 1 by using the upward force of the gas discharged from the tank. As a result, the liquid to be treated is circulated smoothly, so that the pump power can be omitted. This allows the wastewater to be smoothly processed within the treatment tank.
循環ライン６の適所には被処理液を排出するた
めの管路１０を設け、必要に応じて被処理液を排
出する。 A pipe line 10 for discharging the liquid to be treated is provided at an appropriate location in the circulation line 6, and the liquid to be treated is discharged as necessary.
なお、前記実施例においては、ガス導入管の下
部に被処理液循環ラインの吐出口を設置するとし
たが、これは、第２図に示すように被処理液循環
ライン６の吐出口９の内部にガス導入管３の吐出
口を設けても酔い。この構成によれば、より一層
ガスのリフト効果を活用できる。 In the above embodiment, the discharge port of the liquid circulation line to be treated was installed at the lower part of the gas introduction pipe, but this was installed inside the discharge port 9 of the liquid circulation line 6 to be treated, as shown in FIG. Even if the discharge port of the gas introduction pipe 3 is provided in According to this configuration, the lift effect of the gas can be further utilized.
本考案によれば処理槽内に設置した回転平膜の
汚染が少なく、有機性廃水の処理が十分に行なえ
る。
According to the present invention, there is little contamination of the rotating flat membrane installed in the treatment tank, and organic wastewater can be treated satisfactorily.
第１図は本考案の実施例を示す設置系統図、第
２図はガス導入管の設置位置の変形例を示す説明
図である。
１……処理槽、２……回転平膜、３……ガス導
入管、６……循環ライン、９……吐出口。
FIG. 1 is an installation system diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a modification of the installation position of the gas introduction pipe. 1... Processing tank, 2... Rotating flat membrane, 3... Gas introduction pipe, 6... Circulation line, 9... Discharge port.
Claims (1)
転平膜下方で前記処理槽の底部にガス導入管と
被処理液循環ラインの吐出口を設け、ガス導入
管から吐出するガスの上昇力を利用して処理槽
上部の被処理液を処理槽外の被処理液循環ライ
ンを経由して処理槽底部に循環させることを特
徴とする有機性廃水の処理装置。 (2) 前記処理槽上部を密閉とし、上部ガス部と前
記導入管とを結ぶガス循環ラインを設けたこと
を特徴とする実用新案登録請求の範囲第(1)項に
記載の有機性廃水の処理装置。[Scope of Claim for Utility Model Registration] (1) A rotating flat membrane is installed at a lower position in a processing tank, and a gas introduction pipe and a discharge port for a liquid circulation line to be treated are provided at the bottom of the processing tank below the rotating flat membrane. , an organic wastewater characterized in that the liquid to be treated at the top of the treatment tank is circulated to the bottom of the treatment tank via the liquid circulation line outside the treatment tank by using the rising force of the gas discharged from the gas introduction pipe. processing equipment. (2) Organic wastewater according to claim (1) of the utility model registration claim, characterized in that the upper part of the treatment tank is sealed and a gas circulation line is provided connecting the upper gas section and the introduction pipe. Processing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986015426U JPH0534799Y2 (en) | 1986-02-05 | 1986-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986015426U JPH0534799Y2 (en) | 1986-02-05 | 1986-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62130799U JPS62130799U (en) | 1987-08-18 |
| JPH0534799Y2 true JPH0534799Y2 (en) | 1993-09-02 |
Family
ID=30806350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986015426U Expired - Lifetime JPH0534799Y2 (en) | 1986-02-05 | 1986-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534799Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63104609A (en) * | 1986-10-20 | 1988-05-10 | Akua Runesansu Gijutsu Kenkyu Kumiai | Method and device for treating membrane |
| JPH0747110B2 (en) * | 1989-02-27 | 1995-05-24 | 東陶機器株式会社 | Membrane treatment method |
| JP2002316189A (en) * | 2001-04-18 | 2002-10-29 | Hitachi Plant Eng & Constr Co Ltd | Biological treatment apparatus and autotrophic sulfur denitrification method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61120694A (en) * | 1984-11-19 | 1986-06-07 | Mitsubishi Kakoki Kaisha Ltd | Treatment of organic waste water |
-
1986
- 1986-02-05 JP JP1986015426U patent/JPH0534799Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61120694A (en) * | 1984-11-19 | 1986-06-07 | Mitsubishi Kakoki Kaisha Ltd | Treatment of organic waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62130799U (en) | 1987-08-18 |
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