JP3450877B2 - Aerobic filter bed processing device with membrane module - Google Patents
Aerobic filter bed processing device with membrane moduleInfo
- Publication number
- JP3450877B2 JP3450877B2 JP12536893A JP12536893A JP3450877B2 JP 3450877 B2 JP3450877 B2 JP 3450877B2 JP 12536893 A JP12536893 A JP 12536893A JP 12536893 A JP12536893 A JP 12536893A JP 3450877 B2 JP3450877 B2 JP 3450877B2
- Authority
- JP
- Japan
- Prior art keywords
- membrane module
- filter medium
- filter
- water
- water collection
- 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 - Fee Related
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
Description
【０００１】[0001]
【産業上の利用分野】本発明は汚水処理装置、特に、膜
モジュールを有する好気性濾床処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment device, particularly a membrane.
An aerobic filter bed treatment device having a module .
【０００２】[0002]
【従来の技術】汚水処理を取巻く現在の社会環境は、土
地の有効活用の面から汚水処理施設の省面積化が求めら
れ、また、水資源の有効活用の面からも親水利用等が提
案されており、今後ますます省スペースで高度処理水を
得ることが重要な課題になると思われる。2. Description of the Related Art In the current social environment surrounding sewage treatment, it is required to reduce the area of sewage treatment facilities from the viewpoint of effective use of land, and it has been proposed to use hydrophilicity from the viewpoint of effective use of water resources. In the future, it will be an important issue to obtain highly treated water in a space-saving manner.
【０００３】このような要望に応えるものとして、好気
性濾床法が注目されている。好気性濾床法は、一般に濾
材を充填した処理槽に空気を曝気しながら汚水を処理す
る方法であり、微生物を利用した生物膜法の一つであ
る。好気性濾床法では、濾材表面に増殖した微生物によ
る生物的処理と同時に、濾材による濾過作用により懸濁
性微粒子（以下ＳＳ）を濾過できるため、最終沈殿池が
不用であり、また、高いＢＯＤ負荷がかけられ、短時間
で排水処理が可能である等の長所を有しており、下水の
省面積型二次処理方法として有用な方法である。The aerobic filter bed method has been attracting attention in order to meet such demands. The aerobic filter bed method is a method of treating sewage while aerating air to a treatment tank filled with a filter medium, and is one of biofilm methods utilizing microorganisms. In the aerobic filter bed, since the suspending fine particles (hereinafter referred to as SS) can be filtered by the filtering action of the filter medium at the same time as the biological treatment by the microorganisms grown on the surface of the filter medium, the final settling basin is unnecessary and the high BOD is high. It has the advantages of being loaded and capable of treating wastewater in a short time, and is a useful method as an area-saving secondary treatment method for sewage.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、好気性
濾床法では処理能力以上の高負荷や流量変動が生じると
微細フロックが処理水中に流出し、水質や透視度が低下
するという生物膜法特有の欠点を有している。このた
め、好気性濾床法で高度処理水を得るために極めて低負
荷運転とした場合、処理に非常に時間がかかり、高負荷
運転で高速処理できる好気性濾床法の長所を減じてしま
う。また、好気性濾床法で高速処理した処理水を再処理
することで高度処理水を得ようとすれば、再処理設備が
別に必要となり、設備全体が大型化して、求められてい
る省面積化に反する結果となってしまうという問題点が
あった。However, in the aerobic filter bed method, when a high load exceeding the treatment capacity or a flow rate fluctuation occurs, fine flocs flow out into the treated water, which deteriorates the water quality and the transparency. Has the drawback of. Therefore, when an extremely low load operation is performed in order to obtain highly treated water by the aerobic filter bed method, the treatment takes a very long time, and the advantage of the aerobic filter bed method capable of high-speed treatment under the high load operation is reduced. . Also, if an attempt is made to obtain highly-treated water by re-treating treated water that has been treated at high speed by the aerobic filter bed method, a separate re-treatment facility will be required, and the entire facility will increase in size, reducing the area required. There was a problem that the result would be against.
【０００５】本発明は、前記従来技術の課題に鑑みなさ
れたものであり、その目的は省スペースで、且つ、親水
や中水に再利用可能な高度処理水が効率的に安定して得
られる膜モジュールを有する好気性濾床処理装置を提供
することである。The present invention has been made in view of the above problems of the prior art, and its object is to save space and efficiently and stably obtain highly treated water that can be reused as hydrophilic water or intermediate water. An object of the present invention is to provide an aerobic filter bed treatment device having a membrane module .
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するため
に本発明に係る膜モジュールを有する好気性濾床処理装
置は、次のように構成される。すなわち、本発明の請求
項１記載の膜モジュールを有する好気性濾床処理装置
は、汚水を注入する汚水注入部と、濾材が充填された濾
材充填層と、前記濾材充填層で処理された処理水が集水
する集水室と、該集水室に設けられた膜モジュールと、
該膜モジュールの下方に設けられた曝気手段と、前記膜
モジュールに接続し、膜モジュールを通過した高度処理
水を排出する排出管と、を備えたことを特徴とする。In order to achieve the above-mentioned object , an aerobic filter bed treating apparatus having a membrane module according to the present invention is constructed as follows. That is, the aerobic filter bed treatment device having the membrane module according to claim 1 of the present invention.
Is the sewage injection part for injecting sewage, and the filter filled with filter media.
The material-filled layer and the treated water treated in the filter-material-filled layer are collected.
And a membrane module provided in the water collection chamber,
Aeration means provided below the membrane module, and the membrane
Advanced processing connected to the module and passed through the membrane module
And a discharge pipe for discharging water .
【０００７】そして、本発明の請求項２記載の膜モジュ
ールを有する好気性濾床処理装置は、汚水を注入する汚
水注入部と、濾材が充填された濾材充填層と、前記濾材
充填層で処理された処理水が集水する集水室と、該集水
室に接続して設けられた集水室側室と、該集水室側室に
設けられた膜モジュールと、該膜モジュールの下方に設
けられた曝気手段と、前記膜モジュールに接続し、膜モ
ジュールを通過した高度処理水を排出する排出管と、を
備えたことを特徴とする。また、本発明の請求項３記載
の膜モジュールを有する好気性濾床処理装置は、汚水を
注入する汚水注入部と、濾材が充填された二つの濾材充
填層と、該濾材充填層の間に設けられると共に、該濾材
充填層で処理された処理水が集水する集水室と、該集水
室に設けられた膜モジュールと、前記濾材充填層の下方
に設けられた曝気手段と、前記膜モジュールに接続し、
膜モジュールを通過した高度処理水を排出する排出管
と、を備えたことを特徴とする。The membrane module according to claim 2 of the present invention.
The aerobic filter bed treatment device with a
A water injecting section, a filter medium-filled layer filled with the filter medium, and the filter medium
A water collection chamber for collecting the treated water treated in the packed bed, and the water collection
To the water collection chamber side chamber connected to the chamber, and to the water collection chamber side chamber
The installed membrane module and the installation below the membrane module
The aeration means that is installed and the membrane module,
A discharge pipe that discharges the advanced treated water that has passed through the joule.
Characterized by comprising. In addition, the aerobic filter bed treatment device having the membrane module according to claim 3 of the present invention collects sewage.
Sewage injection part to inject, and two filter media filled with filter media
The filter medium is provided between the filling layer and the filter medium filling layer.
A water collection chamber for collecting the treated water treated in the packed bed, and the water collection
The membrane module installed in the chamber and below the filter medium packed bed
Aeration means provided in the, and connected to the membrane module,
Discharge pipe that discharges highly treated water that has passed through the membrane module
And are provided .
【０００８】さらに、本発明の請求項４記載の膜モジュ
ールを有する好気性濾床処理装置は、請求項１〜３の何
れかに記載の処理装置において、濾材充填層が、比重
１．０以下の濾材が空隙率８０％以上で充填されている
濾材層であることを特徴とする。Further, the membrane module according to claim 4 of the present invention.
An aerobic filter bed treatment device having a filter is provided according to any one of claims 1 to 3.
In the processing apparatus described in any one of the above, the filter medium packed bed has a specific gravity
A filter material of 1.0 or less is filled with a porosity of 80% or more.
It is a filter material layer .
【０００９】[0009]
【作用】本発明に係る膜モジュールを有する好気性濾床
処理装置は前述した手段を有するので、次の様な作用を
有する。すなわち、汚水注入部より処理槽に注入された
汚水はまず濾材充填層にて高負荷・高速処理され、その
処理水は集水室に集水される。この処理水は微細フロッ
クやＳＳ等が流出していることがあり、親水や中水に用
いることができない。しかし、この処理水はさらに前記
集水室内に設置した膜モジュールによって処理されるた
め、前記濾材充填層では必ずしも充分でなかったＳＳ等
の除去が完全に行われ、高度処理水を得ることができ
る。The aerobic filter bed treatment device having the membrane module according to the present invention has the above-mentioned means and therefore has the following action. That is, the sewage injected from the sewage injection part into the treatment tank is first subjected to high-load and high-speed treatment in the filter medium packed bed, and the treated water is collected in the water collection chamber. This treated water may have fine flocs, SS, etc. flowing out, and cannot be used for hydrophilicity or medium water. However, since this treated water is further treated by the membrane module installed in the water collection chamber, the removal of SS and the like, which was not always sufficient in the filter medium packed bed, is completely performed, and highly treated water can be obtained. .
【００１０】ここで、一般に膜モジュールは高濃度では
透過量（Ｆｌｕｘ）が少なく、しかも単位処理水当りの
コストが高いという欠点があるが、本発明に係る汚水の
処理装置では前記濾材充填層により処理された処理水が
前記膜モジュールの透過原水となるため、高Ｆｌｕｘが
得られ、しかも単位処理量当りのコストも抑制できる。
また、濾材充填層の下流側には一般に集水管や集水室等
の集水部が設けられるが、該集水部に前記膜モジュール
を設置することにより、装置構成が大型化することもな
い。Here, in general, the membrane module has the drawbacks that the permeation amount (Flux) is small at a high concentration and the cost per unit treated water is high. Since the treated water that has been treated becomes the permeate raw water of the membrane module, a high flux can be obtained, and the cost per unit treatment amount can be suppressed.
Further, a water collecting portion such as a water collecting pipe or a water collecting chamber is generally provided on the downstream side of the filter medium packed bed, but by installing the membrane module in the water collecting portion, the device configuration does not increase in size. .
【００１１】さらに、曝気手段を前記膜モジュールの下
方に設置しているので、濾材充填層への酸素供給のため
の曝気で前記膜モジュール付近に乱流が生じ、膜モジュ
ールのＦｌｕｘ低下の原因となる濃度勾配や、膜モジュ
ール面へのＳＳ等の推積が解消される。また、前記濾材
充填層に空隙率が８０％以上で、比重が１．０以下の濾
材を用いることにより、濾材の閉塞を防き、処理効率お
よび洗浄効率を向上することができる。Further, since the aeration means is installed below the membrane module, turbulent flow occurs near the membrane module due to aeration for supplying oxygen to the filter medium packed bed, which causes a decrease in flux of the membrane module. And the accumulation of SS on the membrane module surface is eliminated. Further, by using a filter medium having a porosity of 80% or more and a specific gravity of 1.0 or less in the filter medium packed layer, it is possible to prevent the filter medium from being blocked and improve the treatment efficiency and the cleaning efficiency.
【００１２】[0012]
【実施例】以下、図面に基づき本発明の好適な実施例に
ついて説明する。尚、何れの図面も本実施例の処理装置
の基本的構造を示しているに過ぎず、本発明の技術的思
想を有するものであれば形状の相違や他の付属物等があ
っても問題ではない。実施例１（図１）
図１に示す装置は本発明に係る膜モジュールを有する好
気性濾床処理装置の一実施例である。本実施例の処理装
置は、処理槽１０の上方に汚水注入部１２が備えられ、
前記処理槽１０内に設けられた濾材充填層１４と、前記
濾材充填層１４の下方に設けられた下部集水室１６と、
前記下部集水室１６内に設けられた膜モジュール１８
と、前記膜モジュール１８の下方に設けられた曝気手段
と、前記曝気手段の下方に設けられた洗浄手段と、を有
する。The preferred embodiments of the present invention will be described below with reference to the drawings.
explain about. It should be noted that any of the drawings shows the processing apparatus of this embodiment.
It only shows the basic structure of the
If you have an idea, there may be differences in shape and other accessories.
But it doesn't matter.Example 1 (FIG. 1)
The device shown in FIG. 1 is according to the invention.Good with membrane module
Temper filter bedIt is an example of a processing device. Processing equipment of this embodiment
The apparatus is provided with a sewage injection part 12 above the treatment tank 10,
A filter medium filling layer 14 provided in the processing tank 10,
A lower water collecting chamber 16 provided below the filter medium filling layer 14,
Membrane module 18 provided in the lower water collection chamber 16
And aeration means provided below the membrane module 18.
And a cleaning means provided below the aeration means.
To do.
【００１３】そして、前記濾材充填層１４には、通常セ
ラミックスや各種プラスチック等の微生物が増殖しやす
い素材からなる濾材が充填されるが、濾材の閉塞を防
ぎ、処理効率および洗浄効率を向上させるために、前記
濾材は空隙率が８０％以上で、比重が１．０以下のもの
用いることが好ましい。また、前記濾材の形状は粒状の
他、繊維状、円筒状、球状、塊状等、汚水処理上最適な
形状に成形して用いることができる。The filter medium filling layer 14 is usually filled with a filter medium made of a material such as ceramics and various plastics in which microorganisms easily proliferate. To prevent clogging of the filter medium and improve treatment efficiency and cleaning efficiency. In addition, it is preferable to use the filter medium having a porosity of 80% or more and a specific gravity of 1.0 or less. In addition to the granular shape, the filter medium may be formed into a fiber shape, a cylindrical shape, a spherical shape, a lump shape, or the like into an optimum shape for treating wastewater.
【００１４】前記下部集水室１６には膜モジュール１８
が設けられ、前記膜モジュール１８は排出管２０と接続
されており、排出用ポンプ２２によって前記膜モジュー
ル１８を通過した高度処理水が前記排出管２０を経て排
出される。尚、本発明の膜モジュールを有する好気性濾
床処理装置において、膜モジュールは必要とするレベル
の処理水が得られるような分画特性の透過膜であればそ
の素材、形状等については特に限定されない。A membrane module 18 is installed in the lower water collecting chamber 16.
The membrane module 18 is connected to the discharge pipe 20, and the discharge pump 22 discharges the advanced treated water that has passed through the membrane module 18 through the discharge pipe 20. The aerobic filter having the membrane module of the present invention
In the floor treatment apparatus, the membrane module is not particularly limited in its material, shape, etc. as long as it is a permeable membrane having a fractionation characteristic that can obtain a required level of treated water.
【００１５】次に、前記曝気手段は、前記下部集水室１
６内で前記膜モジュール１８の下方に設けられた曝気用
空気噴射管２４と、前記曝気用空気噴射管２４が接続さ
れた曝気用ブロアー２６と、を有している。また、前記
洗浄手段は、前記下部集水室１６内で前記曝気用空気噴
射管２４の下方に設けられた洗浄用空気噴射管２８と、
前記洗浄用空気噴射管２８が接続された洗浄用ブロアー
３０と、を有している。Next, the aeration means includes the lower water collecting chamber 1
6 has an aeration air injection pipe 24 provided below the membrane module 18 and an aeration blower 26 to which the aeration air injection pipe 24 is connected. Further, the cleaning means includes a cleaning air injection pipe 28 provided below the aeration air injection pipe 24 in the lower water collection chamber 16.
A cleaning blower 30 to which the cleaning air injection pipe 28 is connected.
【００１６】本実施例に係る膜モジュールを有する好気
性濾床処理装置は概略以上のように構成され、以下にそ
の作用について説明する。前記図１の膜モジュールを有
する好気性濾床処理装置において、汚水注入部１２から
処理槽１０の上方に汚水が注入されると、汚水はまず前
記濾材充填層１４を通過する。ここで、前記濾材充填層
１４内では前記曝気用空気噴射管２４から曝気用ブロア
ー２６により噴射される空気によって供給された酸素を
利用して、微生物による生物的処理が行われ、また、該
濾材の濾過作用により殆どのＳＳが濾去される。 Aerobic with membrane module according to this embodiment
The filter bed treating apparatus is constructed as described above, and its operation will be described below. With the membrane module of FIG.
In the aerobic filter bed treatment apparatus described above, when sewage is injected from the sewage injection part 12 to the upper side of the treatment tank 10, the sewage first passes through the filter medium packed layer 14. Here, in the filter medium packed layer 14, biological treatment by microorganisms is carried out using oxygen supplied by the air jetted from the aeration air jet pipe 24 by the aeration blower 26, and the filter medium is also used. Most of SS is filtered off by the filtration action of.
【００１７】次に、前記濾材充填層１４で処理された処
理水は、前記下部集水室１６に集められ、さらに前記下
部集水室１６内に設置された前記膜モジュール１８を通
過することによって、前記濾材充填層１４で濾過しきれ
なかったＳＳや微細フロックが完全に除去され、排出管
２０から排出される。このように、本実施例の処理装置
では、好気性濾床による処理と透過膜による処理が同一
処理槽内で行われ、もしも高負荷・高速処理によって濾
材充填層からＳＳや微細フロックが流出したとしても、
これらは前記膜モジュール１８により良好に除去され
る。従って、汚水を高負荷・高速処理でき、しかも別の
再処理設備なしに省スペースで高度処理水を得ることが
できる。Next, the treated water treated in the filter medium packed layer 14 is collected in the lower water collecting chamber 16 and further passes through the membrane module 18 installed in the lower water collecting chamber 16. The SS and fine flocs that have not been completely filtered by the filter medium filling layer 14 are completely removed and discharged from the discharge pipe 20. As described above, in the treatment apparatus of this embodiment, the treatment with the aerobic filter bed and the treatment with the permeable membrane are performed in the same treatment tank, and if high load and high speed treatment, SS and fine flocs flow out from the filter medium packed bed. Even if
These are well removed by the membrane module 18. Therefore, sewage can be treated with a high load and at a high speed, and moreover, highly treated water can be obtained in a space-saving manner without a separate retreatment facility.
【００１８】また、膜モジュール１８の透過原水は、濾
材充填層１４で処理された清澄な処理水なので、従来膜
処理法で生じる目詰りによるＦｌｕｘ（透過量）の低下
や、膜圧上昇等の問題点が改善され、高Ｆｌｕｘが得ら
れると共に、単位処理量当りのコストを抑制できる。さ
らに、前記曝気用空気噴射管２４から噴射される空気に
前記膜モジュール１８が晒されるので、前記膜モジュー
ル１８付近に乱流が生じ、Ｆｌｕｘ低下の原因となる濃
度勾配が解消され、また、膜モジュール面へのＳＳ等の
推積を防ぐことができ、よって、高度処理水を効率的に
安定して供給することが可能である。また、本実施例の
膜モジュールには水深分の圧力がかかり、膜透過にこの
圧力を利用できるので、経済的にも有利である。Further, since the permeated raw water of the membrane module 18 is clear treated water treated by the filter medium filling layer 14, there is a decrease in Flux (permeation amount) due to clogging generated in the conventional membrane treatment method and an increase in membrane pressure. The problems are improved, a high flux is obtained, and the cost per unit processing amount can be suppressed. Further, since the membrane module 18 is exposed to the air jetted from the aeration air jet pipe 24, a turbulent flow is generated in the vicinity of the membrane module 18, and the concentration gradient that causes the decrease in Flux is eliminated. Accumulation of SS or the like on the module surface can be prevented, and thus highly treated water can be efficiently and stably supplied. In addition, the membrane module of this embodiment is pressured by the depth of water and can be used for membrane permeation, which is economically advantageous.
【００１９】さて、好気性濾床法による処理を継続して
行っていると濾材が目詰りし、処理効率が低下すること
がある。このような場合に備えて一般に濾材充填層下方
に洗浄手段が備えられているが、本実施例のように洗浄
手段として洗浄用空気噴射管２８を膜モジュール１８お
よび曝気用空気噴射管２４の下方に設置すれば、洗浄用
ブロアー３０により洗浄用空気噴射管２８から噴射され
た空気によって、濾材の洗浄と同時に膜モジュール１８
および曝気用空気噴射管２４も洗浄できる。以上のよう
に、本実施例の膜モジュールを有する好気性濾床処理装
置は省スペースで高度処理水が効率的に安定して得られ
る優れた処理装置である。If the treatment by the aerobic filter bed method is continuously performed, the filter medium may be clogged and the treatment efficiency may decrease. In order to prepare for such a case, a cleaning means is generally provided below the filter medium packed bed. As in this embodiment, the cleaning air injection pipe 28 is provided below the membrane module 18 and the aeration air injection pipe 24 as the cleaning means. When the filter module is installed in the membrane module 18 at the same time as the cleaning of the filter medium, the air blown from the cleaning air injection pipe 28 by the cleaning blower 30 is used.
Also, the aeration air jet pipe 24 can be cleaned. As described above, the aerobic filter bed treatment apparatus having the membrane module of the present embodiment is an excellent treatment apparatus that saves space and efficiently and stably obtains highly treated water.
【００２０】実施例２（図２）
図２には本発明に係る膜モジュールを有する好気性濾床
処理装置の第２実施例が示されているが、前記第１実施
例に対応する部分には符号１００を加えて説明を省略す
る。本実施例の膜モジュールを有する好気性濾床処理装
置は、下部集水室１１６の他に、前記下部集水室１と接
続して設けられた集水室側室１４０を有し、前記下部集
水室１１６内に洗浄用空気噴射管１２８を、また、前記
集水室側室１４０内に膜モジュール１１８と曝気用空気
噴射管１２４とを備えている。そして、前記下部集水室
１１６に集められた処理水は前記集水室側室１４０から
前記膜モジュール１１８を通過して高度処理水となる
が、通過しなかった処理水は前記曝気用空気噴射管１２
４から噴射された空気のエアリフト効果によって、前記
集水室側室１４０の上方に設けられた流入部１４２から
再度処理槽１１０上方へと循環する。[0020]Example 2 (Fig. 2)
FIG. 2 relates to the present inventionAerobic filter bed with membrane module
Although a second embodiment of the processing apparatus is shown, the first embodiment
The reference numeral 100 is added to the portion corresponding to the example, and the description is omitted.
It Of this embodimentAerobic filter bed with membrane moduleProcessing equipment
In addition to the lower water collecting chamber 116, the table is connected to the lower water collecting chamber 1.
It has a water collecting chamber side chamber 140 continuously provided,
A cleaning air injection pipe 128 is provided in the water chamber 116, and
Membrane module 118 and aeration air in the water collection chamber side chamber 140
And an injection pipe 124. And the lower water collection chamber
The treated water collected in 116 is collected from the water collecting chamber side chamber 140.
It passes through the membrane module 118 and becomes highly treated water.
However, the treated water that did not pass is the aeration air injection pipe 12
By the air lift effect of the air injected from No. 4,
From the inflow part 142 provided above the water collection chamber side chamber 140
It circulates above the processing tank 110 again.
【００２１】本実施例の膜モジュールを有する好気性濾
床処理装置も前記第１実施例と同様に、高度処理水が省
スペースで、且つ、効率的に安定して得られる優れた処
理装置であるが、処理水を循環させることによって、膜
処理の透過原水がより清澄になり、処理効率の向上が期
待できる。また、前記洗浄用空気噴射管１２８を下部集
水室１１６から集水室側室１４０にかけて設けるか、洗
浄空気が循環水流に乗って集水室側室１４０にまで及ぶ
ように下部集水室１１６内に設置にすれば、前記第１実
施例と同様、濾材充填層１１４の洗浄時に膜モジュール
１１８および曝気用空気噴射管１２４も洗浄可能であ
る。 Aerobic filter having the membrane module of this embodiment
Similar to the first embodiment, the floor treatment apparatus is an excellent treatment apparatus that can obtain highly treated water in a space-saving manner and efficiently and stably. However, by circulating the treated water, the membrane treatment can be performed. The permeated raw water becomes clearer, and improvement in treatment efficiency can be expected. In addition, the cleaning air injection pipe 128 is provided from the lower water collection chamber 116 to the water collection chamber side chamber 140, or the cleaning air injection pipe 128 is provided in the lower water collection chamber 116 so as to reach the water collection chamber side chamber 140 by the circulating water flow. If installed, the membrane module 118 and the aeration air injection pipe 124 can be cleaned at the time of cleaning the filter material filling layer 114, as in the first embodiment.
【００２２】実施例３（図３）
図３には本発明に係る膜モジュールを有する好気性濾床
処理装置の第３実施例が示されているが、前記第１実施
例に対応する部分には符号２００を加えて説明を省略す
る。本実施例の膜モジュールを有する好気性濾床処理装
置は、前記処理槽２１０内に設けられた上部濾材充填層
２５０と下部濾材充填層２５２の間に中間集水室２１６
を有し、膜モジュール２１８は前記中間集水室２１６内
に、曝気用空気噴射管２２４および洗浄用空気噴射管２
２８は前記下部濾材充填層２５２の下方に設けられてい
る。[0022]Example 3 (FIG. 3)
FIG. 3 relates to the present inventionAerobic filter bed with membrane module
Although a third embodiment of the processing apparatus is shown, the first embodiment
The reference numeral 200 is added to the portion corresponding to the example, and the description is omitted.
It Of this embodimentAerobic filter bed with membrane moduleProcessing equipment
The upper filter medium filling layer provided in the processing tank 210
An intermediate water collecting chamber 216 between the lower filter medium filling layer 252 and the lower filter medium filling layer 252.
And the membrane module 218 is in the intermediate water collecting chamber 216.
In addition, the aeration air injection pipe 224 and the cleaning air injection pipe 2
28 is provided below the lower filter medium filling layer 252.
It
【００２３】尚、本実施例のように濾材充填層が上下二
層に分れている場合、下部濾材充填層２５２の下方に設
けられた曝気用空気噴射管２２４の他に、前記中間集水
室２１６内で前記膜モジュール２１８の下方に、必要に
応じて別の曝気用空気噴射管を設けても良い。本実施例
の膜モジュールを有する好気性濾床処理装置において、
汚水は処理槽２１０の上方および下方から各々汚水注入
部２１２より注入され、前記上部濾材充填層２５０では
汚水が上方から下向流に通過し、前記下部濾材充填層２
５２では汚水が下方から上向流に通過する。そして、前
記下部濾材充填層２５２の下方の曝気用空気噴射管２２
４から空気を曝気して処理を行う。When the filter medium packing layer is divided into upper and lower layers as in the present embodiment, the intermediate water collecting pipe is provided in addition to the aeration air injection pipe 224 provided below the lower filter medium packing layer 252. If necessary, another aeration air injection pipe may be provided below the membrane module 218 in the chamber 216. In the aerobic filter bed treatment apparatus having the membrane module of the present embodiment,
The sewage is injected from above and below the treatment tank 210 from the sewage injecting section 212, and the sewage passes through the upper filter medium packed layer 250 in a downward flow from above, and the lower filter medium packed layer 2
At 52, the sewage passes upward from below. Then, the aeration air injection pipe 22 below the lower filter medium filling layer 252 is provided.
Air is aerated from No. 4, and processing is performed.
【００２４】本実施例の膜モジュールを有する好気性濾
床処理装置も前記第１実施例および第２実施例と同様
に、高度処理水が省スペースで、且つ、効率的に安定し
て得られる優れた処理装置であるが、濾材充填層を二層
にして下向流および上向流の両方で処理することによ
り、処理能力を向上させることができる。また、図３の
ように洗浄用空気噴射管２２８を曝気用空気噴射管２２
４の下方に設置すれば、濾材充填層洗浄時に膜モジュー
ル２１８および曝気用空気噴射管２２４も洗浄できる。 Aerobic filter having the membrane module of this embodiment
Similar to the first and second embodiments, the floor treatment apparatus is an excellent treatment apparatus that can obtain highly treated water in a space-saving manner and efficiently and stably. By treating with both the downward flow and the upward flow, the processing capacity can be improved. Further, as shown in FIG. 3, the cleaning air injection pipe 228 is replaced with the aeration air injection pipe 22.
If it is installed below 4, the membrane module 218 and the aeration air injection pipe 224 can be washed at the time of washing the filter medium packed bed.
【００２５】尚、本発明の膜モジュールを有する好気性
濾床処理装置において用いられる膜モジュールは、必要
とされるレベルの高度処理水が得られるような分画特性
の透過膜で構成される。前記透過膜の素材は本発明の効
果を満足するものであれば特に限定されないが、例え
ば、セルロースやそのエステル類等の天然高分子系、ポ
リエチレン等の炭化水素系の他、ポリアミドや芳香属系
等の高分子が挙げられる。また、膜モジュールの形状に
ついても本発明の効果を満足するものであれば特に限定
されず、例えば、平膜状、管状、中空糸状等が挙げられ
るが、特に平膜状に成形された透過膜を複数枚間隔を空
けて配置した膜モジュールが処理水の濾過効果および膜
の洗浄効果等の点で好ましく、特に中空糸をスクリーン
状に展開したものを用いればさらに好ましい。It should be noted that the aerobic having the membrane module of the present invention
The membrane module used in the filter bed treatment apparatus is composed of a permeable membrane having a fractionation characteristic so that a required level of highly treated water can be obtained. The material of the permeable membrane is not particularly limited as long as it satisfies the effects of the present invention. For example, natural polymers such as cellulose and its esters, hydrocarbons such as polyethylene, polyamides and aromatics. And the like. Also, the shape of the membrane module is not particularly limited as long as it satisfies the effects of the present invention, and examples thereof include a flat membrane shape, a tubular shape, and a hollow fiber shape. Particularly, a permeable membrane formed in a flat membrane shape. A membrane module in which a plurality of sheets are arranged at intervals is preferable in terms of the filtration effect of treated water and the cleaning effect of the membrane, and it is more preferable to use a hollow fiber expanded in a screen shape.
【００２６】尚、本発明の膜モジュールを有する好気性
濾床処理装置において、濾材充填層はその最下部に濾材
充填層支持板を有してもよく、また、前記濾材充填層中
の下方に砕石支持層を有していても良い。さらに、前記
濾材充填層の濾材は均一である必要はなく、処理条件に
よっては濾材の素材や形状を不均一に充填しても良い。It should be noted that the aerobic having the membrane module of the present invention
In the filter bed treatment device, the filter medium packed layer may have a filter medium packed layer support plate at the lowermost part thereof, and may have a crushed stone support layer below the filter medium packed layer. Furthermore, the filter material in the filter material-filled layer does not have to be uniform, and the material and shape of the filter material may be nonuniformly packed depending on the processing conditions.
【００２７】[0027]
【発明の効果】本発明の膜モジュールを有する好気性濾
床処理装置は、好気性濾床法で処理された処理水を集水
する集水室内に膜モジュールを用いることにより、高負
荷・高速処理と、膜による高度処理が同一スペースで達
成できる。そして、膜モジュールの膜面にかかる透過原
水は二次処理水並みなので、高Ｆｌｕｘが得られ、ま
た、曝気手段を膜モジュール下方に設置することで膜モ
ジュール面へのＳＳ等の推積やＦｌｕｘ低下を防ぎ、高
度処理水が効率的に安定して得られるという効果が得ら
れる。さらに、処理槽内で処理水を循環させたり濾材充
填層を二層にすることで、処理効率が向上する。また、
本発明の膜モジュールを有する好気性濾床処理装置に空
隙率が８０％以上で、且つ、比重１．０以下の濾材を用
いることで、濾材の閉鎖を防ぎ、処理効率の向上を図る
ことができる。The aerobic filter having the membrane module of the present invention
The bed treatment apparatus uses a membrane module in a water collection chamber that collects treated water treated by the aerobic filter bed method, so that high-load / high-speed treatment and advanced treatment with a membrane can be achieved in the same space. Further, since the permeated raw water applied to the membrane surface of the membrane module is equivalent to the secondary treated water, high flux can be obtained, and by installing the aeration means below the membrane module, the accumulation of SS and the like on the membrane module surface and the flux. It is possible to obtain the effects of preventing deterioration and efficiently obtaining highly treated water. Further, the treatment efficiency is improved by circulating the treated water in the treatment tank or by forming the filter medium packed layer into two layers. Also,
By using a filter medium having a porosity of 80% or more and a specific gravity of 1.0 or less in the aerobic filter bed treatment apparatus having the membrane module of the present invention, it is possible to prevent the filter medium from being closed and improve the treatment efficiency. it can.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例に係る膜モジュールを有する
好気性濾床処理装置の構成説明図である。FIG. 1 has a membrane module according to an embodiment of the present invention.
It is a structure explanatory view of an aerobic filter bed processing apparatus.
【図２】本発明の一実施例に係る膜モジュールを有する
好気性濾床処理装置の構成説明図である。FIG. 2 has a membrane module according to an embodiment of the present invention.
It is a structure explanatory view of an aerobic filter bed processing apparatus.
【図３】本発明の一実施例に係る膜モジュールを有する
好気性濾床処理装置の構成説明図である。FIG. 3 has a membrane module according to an embodiment of the present invention.
It is a structure explanatory view of an aerobic filter bed processing apparatus.
フロントページの続き (56)参考文献 特開 平６−47399（ＪＰ，Ａ) 特開 平５−185078（ＪＰ，Ａ) 特開 平４−131182（ＪＰ，Ａ) 特開 平２−71896（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 3/02 - 3/10 C02F 3/34 Continuation of the front page (56) Reference JP-A-6-47399 (JP, A) JP-A-5-185078 (JP, A) JP-A-4-131182 (JP, A) JP-A-2-71896 (JP , A) (58) Fields surveyed (Int.Cl. 7 , DB name) C02F 3/02-3/10 C02F 3/34
Claims (6)
充填層の下方に設けられた集水室と、 該集水室に設けられた膜モジュールと、 前記集水室内で、該膜モジュールの下方に設けられた濾
材曝気手段と、 前記膜モジュールに接続し、膜モジュールを通過した高
度処理水を排出する排出管と、を備えたことを特徴とす
る膜モジュールを有する好気性濾床処理装置。1.In one processing tank, A sewage injection part for injecting sewage, A filter medium filling layer filled with a filter medium, The treated water treated in the filter medium packed layer is collected,The filter material
Provided below the packed bedA water collection room, A membrane module provided in the water collection chamber, The aboveIn the water collection room,Provided below the membrane moduleFilter
MaterialAeration means, Connected to the membrane module, the high
And a discharge pipe for discharging treated water.
An aerobic filter bed treatment device having a membrane module.
前記濾材曝気手段の下方に備えることを特徴とする、請
求項１記載の膜モジュールを有する好気性濾床処理装
置。 2. A filter medium cleaning means in the water collection chamber, and
A contractor characterized in that it is provided below the filter medium aeration means.
Aerobic filter bed treatment device having the membrane module according to claim 1.
Place
充填層の下方に設けられた集水室と、 該集水室と下方で接続し、且つ前記濾材充填層に隣接し
て設けられた集水室側室と、 該集水室側室に設けられた膜モジュールと、前記集水室側室内で、 該膜モジュールの下方に設けられ
た濾材曝気手段と、 前記膜モジュールに接続し、膜モジュールを通過した高
度処理水を排出する排出管と、を備え、 前記集水室に集められた処理水が、前記集水室側室上方
から濾材充填層上方へ循環する ことを特徴とする膜モジ
ュールを有する好気性濾床処理装置。3.In one processing tank, A sewage injection part for injecting sewage, A filter medium filling layer filled with a filter medium, The treated water treated in the filter medium packed bed is collected.And the filter material
Provided below the packed bedA water collection room, The water collection roomConnected below and adjacent to the filter media packing layer.
Was set upWater collection room side room, A membrane module provided in the water collection chamber side chamber,In the water collection room side room, Provided below the membrane module
WasFilter materialAeration means, Connected to the membrane module, the high
And a discharge pipe for discharging treated water, The treated water collected in the water collection chamber is located above the water collection chamber side chamber.
Circulates above the filter media packed bed Membrane module characterized by
An aerobic filter bed treatment device having a tool.
水室側室にかけて設けること、あるいは洗浄空気が循環
水流にのって前記集水室側室にまで及ぶように設置する
ことを特徴とする、前記請求項３記載の膜モジュールを
有する好気 性濾床処理装置。 4. A filter medium cleaning means for collecting the filter medium from the water collecting chamber.
Install in the water chamber side room or circulate cleaning air
Install so that the water flow extends to the side room of the water collection room
The membrane module according to claim 3, wherein
Aerobic filter bed processing apparatus has.
処理された処理水が集水する集水室と、 該集水室に設けられた膜モジュールと、 前記濾材充填層の下方に設けられた曝気手段と、 前記膜モジュールに接続し、膜モジュールを通過した高
度処理水を排出する排出管と、を備えたことを特徴とす
る膜モジュールを有する好気性濾床処理装置。5.In one processing tank, A sewage injection part for injecting sewage, Two filter medium packed layers filled with filter medium, It is provided between the filter medium filling layers and
A water collection chamber for collecting the treated water, A membrane module provided in the water collection chamber, Aeration means provided below the filter medium packed layer, Connected to the membrane module, the high
And a discharge pipe for discharging treated water.
An aerobic filter bed treatment device having a membrane module.
空隙率８０％以上で充填されている濾材層であることを
特徴とする請求項１〜５の何れかに記載の膜モジュール
を有する好気性濾床処理装置。6. The filter medium packed bed, membrane module according to any one of claims 1 to 5, specific gravity 1.0 of a filter medium is characterized in that it is a filter layer which is filled with void ratio of 80% or more An aerobic filter bed treatment device having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12536893A JP3450877B2 (en) | 1993-04-28 | 1993-04-28 | Aerobic filter bed processing device with membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12536893A JP3450877B2 (en) | 1993-04-28 | 1993-04-28 | Aerobic filter bed processing device with membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06312193A JPH06312193A (en) | 1994-11-08 |
| JP3450877B2 true JP3450877B2 (en) | 2003-09-29 |
Family
ID=14908407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12536893A Expired - Fee Related JP3450877B2 (en) | 1993-04-28 | 1993-04-28 | Aerobic filter bed processing device with membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3450877B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7174577B2 (en) * | 2018-09-18 | 2022-11-17 | メタウォーター株式会社 | gravity filter |
-
1993
- 1993-04-28 JP JP12536893A patent/JP3450877B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06312193A (en) | 1994-11-08 |
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