JPH0259098A - Activated sludge treatment apparatus - Google Patents
Activated sludge treatment apparatusInfo
- Publication number
- JPH0259098A JPH0259098A JP63210185A JP21018588A JPH0259098A JP H0259098 A JPH0259098 A JP H0259098A JP 63210185 A JP63210185 A JP 63210185A JP 21018588 A JP21018588 A JP 21018588A JP H0259098 A JPH0259098 A JP H0259098A
- Authority
- JP
- Japan
- Prior art keywords
- water
- treated
- membrane
- activated sludge
- flow path
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 239000012528 membrane Substances 0.000 claims abstract description 87
- 238000001914 filtration Methods 0.000 claims description 37
- 238000005273 aeration Methods 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract 2
- 239000012510 hollow fiber Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000011001 backwashing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 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
-
- 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
- Y02W10/20—Sludge processing
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、膜分離を利用した活性汚泥処理装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an activated sludge treatment apparatus using membrane separation.
従来の技術
最近、この種の活性汚泥処理装置として、第７図に示す
ようなものが提案されている。この活性汚泥処理装置１
は、曝気＋ｓ２内の活性２り泥を含む被処理水３中に中
空糸膜４か浸され、中空糸膜４の直下に散気管５が配置
ηされたものである。中空糸膜４は、中空孔を有する糸
状に形成された多数のろ過膜の切口が束ねられてなり、
この１１３１ｍすに集水管６が接続されている。集水管
６は、吸引ポンプ７を経由して処理水槽８に至っている
。９は散気管５に曝気用空気を供給するブロワ−５１０
は原水を曝気槽２に供給する原水供給管で、曝気槽２に
供給された原水に含まれる有機物は曝気槽２内の被処理
水に含まれる活性汚泥に吸着され、（放生物によって分
解消化される。この装置１において、吸引ポンプ７を運
転すると、中空糸膜４は中空孔内が負圧になり、ろ過膜
を介して被処理水３を吸引し、ろ過する。被処理水３中
の活性汚泥はろ過膜でしゃ断されて曝気槽２内に残留し
、消化により清浄になった処理水１１のみがろ過膜を通
過して中空糸膜４の中空孔内に入り、集水管６を経由し
て処理水槽８内に供給されるのである。BACKGROUND OF THE INVENTION Recently, an activated sludge treatment apparatus of this type as shown in FIG. 7 has been proposed. This activated sludge treatment equipment 1
In this example, a hollow fiber membrane 4 is immersed in treated water 3 containing activated sludge in aeration+s2, and an aeration pipe 5 is placed directly below the hollow fiber membrane 4. The hollow fiber membrane 4 is formed by bundling together the cut ends of a large number of filament-shaped filtration membranes having hollow holes.
A water collection pipe 6 is connected to this 1131 m. The water collection pipe 6 reaches a treated water tank 8 via a suction pump 7. 9 is a blower 510 that supplies aeration air to the aeration pipe 5
is a raw water supply pipe that supplies raw water to the aeration tank 2. The organic matter contained in the raw water supplied to the aeration tank 2 is adsorbed by the activated sludge contained in the water to be treated in the aeration tank 2, and is decomposed and digested by radioactive organisms. In this device 1, when the suction pump 7 is operated, the inside of the hollow fiber membrane 4 becomes negative pressure, and the water to be treated 3 is sucked through the filtration membrane and filtered. The activated sludge is blocked by the filtration membrane and remains in the aeration tank 2, and only the treated water 11 that has been purified by digestion passes through the filtration membrane and enters the hollow holes of the hollow fiber membrane 4, and then flows through the water collection pipe 6. It is supplied into the treated water tank 8 via the water.
発明が解決しようとする課題
しかし、上記従来の構成によれば被処理水３中の繊維状
きよう雑物等が中空糸膜４の外側に絡み付き、それに活
性汚泥が付着することにより中空糸膜４の束が１本の泥
の棒のようになり、中空糸膜４が目詰りしてしまうとい
う間Ｕがあった。Problems to be Solved by the Invention However, according to the above-mentioned conventional configuration, fibrous impurities etc. in the water to be treated 3 become entangled with the outside of the hollow fiber membrane 4, and activated sludge adheres to it, causing the hollow fiber membrane to 4 became like a stick of mud, and the hollow fiber membrane 4 became clogged.
本発明は、このような問題点を解消しようとするもので
、ろ過膜の目詰りを防止することを目的とする。The present invention aims to solve these problems, and aims to prevent clogging of the filtration membrane.
課題を解決するための手段
上記目的を達成するため、本発明の活性汚泥処理装置は
、曝気槽内の被処理水中に膜モジュールが浸され、膜モ
ジュールの直下に散気管が配置されたものであって、膜
モジュールは、板面にろ過膜が川ね合わされた複数０個
の膜支持板がろ過膜の周縁部を押えるための箱枠を介し
て並設され、相対向するろ過膜どうしの間に被処理水流
路と、ろ過膜と膜支持板との間に処理水流路とが形成さ
れてなり、各膜支持板の板面に突起部が形成され、これ
らの突起部は相対向する突起部との間にろ過膜を挟持し
、各突起部を貫通して集水管路が形成され、この集水管
路が前記処理水流路に連通している構成としたものであ
る。Means for Solving the Problems In order to achieve the above object, the activated sludge treatment apparatus of the present invention is such that a membrane module is immersed in the water to be treated in an aeration tank, and an aeration pipe is arranged directly below the membrane module. The membrane module consists of a plurality of membrane support plates with filtration membranes strung together on the plate surface, which are arranged side by side through a box frame to press the periphery of the filtration membranes. A treated water flow path is formed between the filtration membrane and the membrane support plate, and a protrusion is formed on the plate surface of each membrane support plate, and these protrusions face each other. A filtration membrane is sandwiched between the protrusions, a water collection pipe is formed passing through each protrusion, and the water collection pipe is in communication with the treated water flow channel.
作用
上記本発明の構成において、散気管に曝気用空気を供給
すると、曝気槽内に供給された原水は活性汚泥により消
化されるとともに、活性汚泥を含む被処理水は散気管か
ら吹き出された気泡により被処理水流路内を上昇し、そ
のエヤリフト作用により被処理水流路内に被処理水の上
昇流を発生させる。そして、吸引ポンプにより集水管内
を吸引すると、集水管およびそれに連通ずる処理水流路
の内部が負圧になり、被処理水流路内の被処理水がろ過
膜を介して吸引され、ろ過される。被処理水中の活性汚
泥はろ過膜でしゃ断され、被処理水の上昇流に乗って上
昇し、被処理水流路の上方から流路外に運び去られる。Effect In the configuration of the present invention described above, when aeration air is supplied to the aeration pipe, the raw water supplied to the aeration tank is digested by activated sludge, and the water to be treated containing activated sludge is digested by air bubbles blown out from the aeration pipe. The water to be treated rises in the flow path, and the air lift effect generates an upward flow of the water to be treated in the water flow path. Then, when the inside of the water collection pipe is suctioned by the suction pump, negative pressure is created inside the water collection pipe and the treated water flow path that communicates with it, and the water to be treated in the water flow path is sucked through the filtration membrane and filtered. . The activated sludge in the water to be treated is blocked by the filtration membrane, rises along with the upward flow of the water to be treated, and is carried away from above the water flow path and out of the flow path.
他方、ろ過膜を通過して清浄になった処理水は処理水流
路内に入り、集水管を経由して処理水槽内に供給される
のである。On the other hand, the treated water that has passed through the filtration membrane and has become clean enters the treated water flow path and is supplied into the treated water tank via the water collection pipe.
被処理水流路におけるろ過膜間の距離は箱枠により任意
に設定できるので、繊維状きよう雑物を多く含む原水で
あっても、きよう雑物のからみ付きを防止することがで
きる。また、吸引ポンプを周期的に一定時間逆回転させ
、処理水槽内の処理水を集水管を経由して処理水流路か
ら被処理水流路に逆流させることにより、ろ過膜の膜面
を逆洗することができる。したがって、ろ過膜が活性汚
泥の付着により目詰りを起こすおそれはない。Since the distance between the filtration membranes in the water flow path to be treated can be set arbitrarily depending on the box frame, entanglement of the foreign matter can be prevented even if the raw water contains a large amount of fibrous foreign matter. In addition, the membrane surface of the filtration membrane is backwashed by periodically rotating the suction pump in reverse for a certain period of time and causing the treated water in the treated water tank to flow back from the treated water flow path to the treated water flow path via the water collection pipe. be able to. Therefore, there is no risk that the filter membrane will become clogged due to adhesion of activated sludge.
実施例
以下、本発明の一実施例を第１図〜第６図に基づいて説
明する。EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 6.
第１図において、２１は本実施例の活性汚泥処理装置で
あって、曝気槽２２内の被処理水２３中に膜モジュール
２４がその頂部を水面下に没するまで浸され、膜モジュ
ール２４の直下に散気管２５が配置されたものである。In FIG. 1, reference numeral 21 denotes the activated sludge treatment apparatus of this embodiment, in which the membrane module 24 is immersed in the water to be treated 23 in the aeration tank 22 until the top of the membrane module 24 is submerged under the water surface. A diffuser pipe 25 is placed directly below.
２６は、一端部が１模モジユール２４に接続された集水
管で、他端部が吸引ボン１２７を経由して処理水槽２８
内の処理水２９の水面下に開口している。３０は、一端
部が散気管２５に接続された給気管で、他端部にブロワ
−３１が接続されている。26 is a water collection pipe whose one end is connected to the 1 model module 24, and the other end is connected to the treated water tank 28 via the suction bong 127.
It opens below the surface of the treated water 29 inside. 30 is an air supply pipe whose one end is connected to the aeration pipe 25, and the other end is connected to the blower 31.
３２は、原水を曝気槽２２内に供給する原水供給管であ
る。32 is a raw water supply pipe that supplies raw water into the aeration tank 22.
膜モジュール２４は、第１図および第２図に示すように
、板面にろ過膜３３が重ね合わされた複数個の膜支持板
３４が箱枠３５を介して前後方向（図中の左右方向）に
並設され、前後両端面に設けられた端板３６を介して締
付はボルト３７およびナツト３８により一体に組み付け
られてなる。ろ過膜３３は、第４図に示すように、ポリ
スルホン等の有機物から製膜された精密ろ過膜、限外ろ
過膜等のマクロポーラスな方形の平膜で、後述する集水
管路４３に対応する位置に透孔３９が設けられ、周縁部
が膜支持板３４と箱枠３５との間に水蜜を保って挟持さ
れている。膜支持板３４は、第３図に示すように、方形
の平板で、処理水が通りやすいよう涌がつけてあり、上
部中央の両面（ただし、前後両端のものは片面のみ）に
ポリプロピレン等からなる円形のシールリングによって
突起部４０が形成されている。突起部４０は、中心部を
集水孔４１が貫通するとともに、集水孔４１に連通ずる
連通溝４２が側壁に十字形（４叉路にかぎらず８叉路、
１２叉路であってもよい）に設りられており、相対向す
る突起部４０との間に水密を保ってろ過膜３３を挟持し
ている。これにより、各集水孔４１はろ過ｒ！Ａ３３の
透孔３９を介して互いに連通し、１本の集水管路４３を
形成している。箱枠３５は、ろ過膜３３の周縁部を押え
るための箱形枠体で、前後上下の４面に開口４４．４５
を有している。As shown in FIGS. 1 and 2, the membrane module 24 has a plurality of membrane support plates 34 on which filtration membranes 33 are superimposed on each other in the front-rear direction (left-right direction in the figure) via a box frame 35. The bolts 37 and nuts 38 are arranged in parallel to each other and are integrally tightened via end plates 36 provided on both front and rear end surfaces. As shown in FIG. 4, the filtration membrane 33 is a macroporous rectangular flat membrane such as a microfiltration membrane or an ultrafiltration membrane made of an organic substance such as polysulfone, and corresponds to a water collection pipe 43 described later. A through hole 39 is provided at the position, and the peripheral edge portion is sandwiched between the membrane support plate 34 and the box frame 35 while keeping moisture in the membrane. As shown in Fig. 3, the membrane support plate 34 is a rectangular flat plate with a basin attached to it so that the treated water can easily pass through, and both sides of the upper center (however, only one side of the membrane support plate at both front and rear ends) are made of polypropylene or the like. The protrusion 40 is formed by a circular seal ring. A water collection hole 41 passes through the center of the protrusion 40, and a communication groove 42 communicating with the water collection hole 41 is formed on the side wall in the shape of a cross (not limited to 4-way, 8-way, 8-way, etc.).
The filtration membrane 33 is sandwiched between the protrusions 40 facing each other in a water-tight manner. As a result, each water collection hole 41 has a filtration r! They communicate with each other via the through hole 39 of A33, forming one water collection pipe 43. The box frame 35 is a box-shaped frame for holding down the peripheral edge of the filtration membrane 33, and has openings 44.45 on four sides, front, back, and top.
have.
端板３６は、第６図に示すように、方形の平板で、前記
集水管路４３に対応する位置に集水管２６用配管孔４６
と、四隅に締付はボルト３７用ボルト孔４７とが設けら
れている。上記のように形成された膜モジュール２４の
内部には、第２図に示すように、相対向するろ過１１Ｑ
３３どうしの間に被処理水流路４８と、ろ過膜３３と膜
支持板３４との間に処理水流路４９とが形成され、処理
水流路４９は連通溝４２を介して集水管路４３に連通し
ている。集水管２６は集水管ＦＩ＠４３の後端部に接続
される。The end plate 36 is a rectangular flat plate, as shown in FIG.
Bolt holes 47 for tightening bolts 37 are provided at the four corners. Inside the membrane module 24 formed as described above, as shown in FIG.
33, and a treated water flow path 49 is formed between the filtration membrane 33 and the membrane support plate 34, and the treated water flow path 49 communicates with the water collection pipe 43 via the communication groove 42. are doing. The water collection pipe 26 is connected to the rear end of the water collection pipe FI@43.
次に、本実施例の作用について説明する。ブロワ−３１
により散気管２５に曝気用空気を供給すると、原水供給
管３２から曝気Ｍ３２２に供給された原水は活性汚泥に
より消化されるとともに、活性汚泥を含む被処理水は散
気管２５から吹き出された気泡により被処理水流路４８
内を、Ｌ昇し、そのエヤリフト作用により被処理水流路
４８内に被処理水２３の上昇流を発生させる。吸引ポン
プ２７により集水管２６内を吸引すると、集水管２６お
よびそれに連通ずる処理水流路４９の内部が負圧になり
、被処理水流路４８内の被処理水がろ過膜３３を介して
吸引され、ろ過される。被処理水２３中の活性汚泥はろ
過膜３３でしゃ断され、被処理水２３の上昇流に乗って
上昇し、被処理水流路４８の上方から被処理水流路４８
外に運び去られる。他方、ろ過膜３３を通過して清浄に
なった処理水２９は処理水流路４９内に入り、連通溝４
２、集水管路４３および集水管２６を経由して処理水槽
２８内に供給されるのである。そして、吸引ポンプ２７
を周期的に一定時間逆回転させ、処理水槽２８内の処理
水２９を集水９２６、集水管路４３および連通溝４２を
経由して処理水流路４９から被処理水流路４８に逆流さ
ぜることにより、ろ過膜３３の膜面を逆洗する。Next, the operation of this embodiment will be explained. Blower 31
When aeration air is supplied to the aeration pipe 25 by the aeration pipe 25, the raw water supplied from the raw water supply pipe 32 to the aeration M322 is digested by activated sludge, and the water to be treated containing activated sludge is digested by the air bubbles blown out from the aeration pipe 25. Treated water flow path 48
The inside of the water is raised by L, and an upward flow of the water to be treated 23 is generated in the water flow path 48 by the air lift effect. When the inside of the water collection pipe 26 is suctioned by the suction pump 27, a negative pressure is created inside the water collection pipe 26 and the treated water flow path 49 communicating therewith, and the water to be treated in the water flow path 48 to be treated is sucked through the filtration membrane 33. , filtered. The activated sludge in the water to be treated 23 is blocked by the filtration membrane 33, rises along with the upward flow of the water to be treated 23, and flows from above the water flow path 48 to the water flow path 48.
be carried outside. On the other hand, the treated water 29 that has passed through the filtration membrane 33 and has become clean enters the treated water flow path 49 and flows into the communication groove 4.
2. It is supplied into the treated water tank 28 via the water collection pipe 43 and the water collection pipe 26. And suction pump 27
is periodically rotated in reverse for a certain period of time to cause the treated water 29 in the treated water tank 28 to flow back from the treated water flow path 49 to the to-be-treated water flow path 48 via the water collection 926, water collection pipe 43, and communication groove 42. By doing so, the membrane surface of the filtration membrane 33 is backwashed.
なお、吸引ポンプ２７を逆回転させる代わりに、逆洗専
用のポンプを吸引ポンプ２７と並列に集水管２６に接続
して、逆洗してもよい（図示省略）。被処理水流路４８
におけるろ過膜３３間の距離を箱枠３５により適当に設
定しておくと、被処理水中に繊維状きょう雑！肉が多く
含まれていても、きよう雑物がからみ付くおそれはない
。したがって、これと前記逆洗とにより、ろ過膜３３が
活性汚泥の付着により［１詰りを起こすことを防止する
ことができる。Note that instead of rotating the suction pump 27 in the reverse direction, a pump exclusively for backwashing may be connected to the water collection pipe 26 in parallel with the suction pump 27 to perform backwashing (not shown). Treated water flow path 48
If the distance between the filtration membranes 33 is set appropriately using the box frame 35, fibrous contaminants will be present in the water to be treated! Even if it contains a lot of meat, there is no risk of it becoming entangled with foreign substances. Therefore, this and the backwashing can prevent the filtration membrane 33 from becoming clogged due to adhesion of activated sludge.
また、被処理水流路４８内を上昇する曝気用気泡は箱枠
３５の整流効果により均一な密度で上昇するので、被処
理水２３の上昇流に偏流が生ずることはない。さらに、
膜モジュール２４の頂部が被処理水２３１１に没するよ
うに浸されているので、膜モジュール２４の外周に下向
きの活性汚泥の流れが生じ、この下降流に膜モジュール
２４の頂部から出た気泡が同伴されて曝気槽２２の底部
まで運ばれる。そのため、気泡の滞留時間が長くなり、
酸素溶解効率が向上する。Further, since the aeration bubbles rising in the water to be treated flow path 48 rise at a uniform density due to the rectifying effect of the box frame 35, no deviation occurs in the upward flow of the water to be treated 23. moreover,
Since the top of the membrane module 24 is immersed in the water to be treated 2311, a downward flow of activated sludge occurs around the outer periphery of the membrane module 24, and air bubbles coming out of the top of the membrane module 24 are included in this downward flow. It is entrained and carried to the bottom of the aeration tank 22. Therefore, the residence time of bubbles becomes longer,
Oxygen dissolution efficiency is improved.
発明の効果
以上述べたように本発明によれば、被処理水流路内に上
昇流が発生ずるので、ろ過膜によりしゃ断された活性汚
泥がろ過膜面に付着しようとするのを洗い流す。また、
被処理水流路におけるろ過膜間の距離を箱枠により任意
に設定できるので、被処理水中の繊維状きよう雑物のか
らみ付きを防止することができる。また、吸引ポンプを
逆回転させることにより、ろ過膜の膜面を処理水で逆洗
することができる０以上の結果、活性汚泥の付着による
ろ過膜の目詰りを完全に防止することができる。さらに
、散気管から吹き出されて被処理水流路内を上昇する気
泡が箱枠の整流効果により均一な密度で上昇するので、
被処理水の上昇流に偏流が生ずることはない。さらにま
た、１摸モジユールの頂部が被処理水中に没するように
浸されているので、膜モジュールの外周に被処理水の下
降流が生じ、この下降流に膜モジュールの頂部から出た
気泡が同伴されて曝気槽の底部まで運ばれる。Effects of the Invention As described above, according to the present invention, an upward flow is generated in the water flow path to be treated, so that the activated sludge blocked by the filtration membrane that tends to adhere to the filtration membrane surface is washed away. Also,
Since the distance between the filtration membranes in the water flow path can be arbitrarily set by the box frame, it is possible to prevent entanglement of fibrous impurities in the water to be treated. In addition, by rotating the suction pump in the opposite direction, the membrane surface of the filtration membrane can be backwashed with treated water, and as a result, clogging of the filtration membrane due to adhesion of activated sludge can be completely prevented. Furthermore, the air bubbles blown out from the diffuser pipe and rising in the water flow path to be treated rise at a uniform density due to the rectification effect of the box frame.
Unbalanced flow does not occur in the upward flow of the water to be treated. Furthermore, since the top of the first module is immersed in the water to be treated, a downward flow of the water to be treated occurs around the outer periphery of the membrane module, and air bubbles coming out from the top of the membrane module are included in this downward flow. It is entrained and transported to the bottom of the aeration tank.
そのなめ、気泡の滞留時間が長くなり、酸素溶解効率が
向上する。Therefore, the residence time of the bubbles becomes longer and the oxygen dissolution efficiency improves.
第１図は本発明の一実施例を示す活性汚泥処理装置の全
体図、第２図は本発明の膜モジュールの要部拡大断面図
、第３図は本発明の膜支持板の斜視図、第１１図は本発
明のろ過膜の１１視図、第５図は本発明の箱枠の斜視図
、第６図は本発明の端板の斜視図、第７図は従来の活性
汚泥処理装置の一例を示す全体的である。
２１・・・活性１７ｊ泥処１！、１装置、２２・・・曝
気槽、２３・・・被処理水、２４・・・膜モジュール、
２５・・・散気管、３３・・・ろ過膜、３４・・・膜支
持板、３５・・・箱枠、４０・・・突起部、４３・・・
集水管路、４８・・・被処理水流路、４９・・・処理水
流路。
代理人 森 本 義 弘
第
図
Ｓ
２１、−シ占撞う絨り６４
．４．禮綱歇
３３ ・・う通穣
４７−・・処理フに流路
第３
第４図
第５FIG. 1 is an overall view of an activated sludge treatment apparatus showing an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of essential parts of a membrane module of the present invention, and FIG. 3 is a perspective view of a membrane support plate of the present invention. FIG. 11 is a perspective view of the filtration membrane of the present invention, FIG. 5 is a perspective view of the box frame of the present invention, FIG. 6 is a perspective view of the end plate of the present invention, and FIG. 7 is a conventional activated sludge treatment apparatus. An example of this is shown overall. 21...Activity 17j mud place 1! , 1 device, 22... aeration tank, 23... treated water, 24... membrane module,
25... Air diffuser pipe, 33... Filtration membrane, 34... Membrane support plate, 35... Box frame, 40... Projection, 43...
Water collection pipe, 48... Treated water flow path, 49... Treated water flow path. Agent Yoshihiro Morimoto Diagram S 21, - Rubbing carpet 64. 4. Flow path 33... Passage 47 - Processing flow path 3 Figure 4 Figure 5
Claims (1)
ルが浸され、膜モジュールの直下に散気管が配置された
ものであって、膜モジュールは、板面にろ過膜が重ね合
わされた複数個の膜支持板がろ過膜の周縁部を押えるた
めの箱枠を介して並設され、相対向するろ過膜どうしの
間に被処理水流路と、ろ過膜と膜支持板との間に処理水
流路とが形成されてなり、各膜支持板の板面に突起部が
形成され、これらの突起部は相対向する突起部との間に
ろ過膜を挟持し、各突起部を貫通して集水管路が形成さ
れ、この集水管路が前記処理水流路に連通していること
を特徴とする活性汚泥処理装置。1. A membrane module is immersed in treated water containing activated sludge in an aeration tank, and an aeration pipe is placed directly below the membrane module. Membrane support plates are installed in parallel via a box frame to hold down the periphery of the filtration membrane, with a water flow path to be treated between the opposing filtration membranes, and a treatment water flow path between the filtration membrane and the membrane support plate. A water flow path is formed, and protrusions are formed on the plate surface of each membrane support plate, and these protrusions sandwich the filtration membrane between opposing protrusions, penetrating each protrusion An activated sludge treatment apparatus characterized in that a water collection pipe is formed, and the water collection pipe communicates with the treated water flow path.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63210185A JPH0259098A (en) | 1988-08-24 | 1988-08-24 | Activated sludge treatment apparatus |
| CN92101488A CN1054110C (en) | 1988-08-24 | 1992-03-07 | Apparatus for treating activated sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63210185A JPH0259098A (en) | 1988-08-24 | 1988-08-24 | Activated sludge treatment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0259098A true JPH0259098A (en) | 1990-02-28 |
Family
ID=16585193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63210185A Pending JPH0259098A (en) | 1988-08-24 | 1988-08-24 | Activated sludge treatment apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0259098A (en) |
| CN (1) | CN1054110C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0662341A1 (en) * | 1994-01-07 | 1995-07-12 | Kubota Corporation | Filtration membrane module |
| WO2002026363A2 (en) * | 2000-09-28 | 2002-04-04 | Va Tech Wabag Gmbh | Membrane filter unit and method for filtration |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7022238B2 (en) * | 2000-08-10 | 2006-04-04 | Yuasa Corporation | Immersion type membrane filter |
| JP5053940B2 (en) * | 2007-08-21 | 2012-10-24 | 旭化成ケミカルズ株式会社 | Waste water treatment method and waste water treatment apparatus |
| DE102014218416A1 (en) | 2014-09-15 | 2016-03-17 | Nanostone Water Gmbh | filtering device |
| CN107106987A (en) * | 2014-09-15 | 2017-08-29 | 纳诺斯通水务公司 | Tower filtering module component and correlation technique |
| FR3030481B1 (en) * | 2014-12-23 | 2017-01-20 | Bfg Env Tech | MOBILE DEVICE FOR THE BIOLOGICAL TREATMENT OF BIOREACTOR TYPE WASTEWATER. |
| WO2018077870A1 (en) | 2016-10-25 | 2018-05-03 | Trinamix Gmbh | Nfrared optical detector with integrated filter |
| KR101902644B1 (en) * | 2016-11-30 | 2018-09-28 | 두산중공업 주식회사 | Membrane filtration system |
| CN111622037B (en) * | 2020-06-10 | 2021-07-20 | 广东金聪建设工程有限公司 | Ecological town road in sponge city |
-
1988
- 1988-08-24 JP JP63210185A patent/JPH0259098A/en active Pending
-
1992
- 1992-03-07 CN CN92101488A patent/CN1054110C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0662341A1 (en) * | 1994-01-07 | 1995-07-12 | Kubota Corporation | Filtration membrane module |
| WO2002026363A2 (en) * | 2000-09-28 | 2002-04-04 | Va Tech Wabag Gmbh | Membrane filter unit and method for filtration |
| WO2002026363A3 (en) * | 2000-09-28 | 2002-12-12 | Va Tech Wabag Gmbh | Membrane filter unit and method for filtration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1054110C (en) | 2000-07-05 |
| CN1065054A (en) | 1992-10-07 |
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