JP2001120918A - Cleaning method of filter surface and solid-liquid separator - Google Patents
Cleaning method of filter surface and solid-liquid separatorInfo
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- JP2001120918A JP2001120918A JP30926699A JP30926699A JP2001120918A JP 2001120918 A JP2001120918 A JP 2001120918A JP 30926699 A JP30926699 A JP 30926699A JP 30926699 A JP30926699 A JP 30926699A JP 2001120918 A JP2001120918 A JP 2001120918A
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- Prior art keywords
- cleaning
- ultrasonic
- solid
- movable
- filtration surface
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、生物処理槽内に浸
漬させて、微生物と濾液を分離する固液分離装置の濾過
面の洗浄方法及び固液分離装置に関し、特に河川水、湖
沼水、用水、下水、各種廃水、し尿等の水処理分野で、
浮遊物質を濾過する装置の濾過面洗浄方法及び固液分離
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a filtration surface of a solid-liquid separation device for separating microorganisms and a filtrate by immersing the filtration surface in a biological treatment tank and a solid-liquid separation device. In the field of water treatment of irrigation water, sewage, various wastewater, human waste, etc.
The present invention relates to a method for cleaning a filtration surface of a device for filtering suspended substances and a solid-liquid separation device.
【０００２】[0002]
【従来の技術】従来から濾過面の洗浄には、空気洗浄、
水洗浄、空気と水洗浄、薬品洗浄、振動による洗浄等が
知られていたが、濾過面内部まで目詰まりした場合、効
果的な洗浄は難しかった。この点を改良したものとし
て、濾過筒を超音波洗浄する技術が知られているが、こ
の技術は、超音波振動子が各々の濾過筒に付いており、
多数の超音波振動子を用いている。2. Description of the Related Art Conventionally, air cleaning,
Water washing, air and water washing, chemical washing, washing by vibration, and the like have been known, but effective clogging has been difficult when the inside of the filtration surface is clogged. As an improvement on this point, a technique for ultrasonically cleaning a filter tube is known, but this technology has an ultrasonic vibrator attached to each filter tube,
Many ultrasonic transducers are used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この方
法では、超音波発振子が１箇所に固定されているので、
超音波発振子に近い濾過面はよく洗浄されても、遠い濾
過面は洗浄がよくなされず、洗浄が不十分なためにすぐ
目詰まりを起こし、そのため洗浄頻度が高く、濾過体の
交換頻度も高くなるという問題点があった。その上、上
記したように、超音波振動子が各濾過体エレメントに付
設されており、不経済であり、合理的な方法と言えない
という欠点もあった。本発明は、このような従来の課題
に鑑みてなされたものであり、濾過面内部の目詰まりを
容易に解消できる、各濾過モジュールについて最も効果
的に洗浄できる、濾過面の洗浄方法及び固液分離装置を
提供することを目的とする。However, in this method, since the ultrasonic oscillator is fixed at one place,
Even though the filtration surface close to the ultrasonic oscillator is well washed, the filtration surface far away is not cleaned well and clogged immediately due to insufficient cleaning, so the frequency of cleaning is high and the frequency of replacing the filter There was a problem that it became expensive. In addition, as described above, the ultrasonic vibrator is attached to each filter element, which is disadvantageous in that it is uneconomical and cannot be said to be a reasonable method. The present invention has been made in view of such a conventional problem, and can easily eliminate clogging inside a filtration surface, can most effectively clean each filtration module, a method for cleaning a filtration surface, and a solid-liquid method. It is an object to provide a separation device.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、下記の
手段により前記の課題を解決した。 （１）超音波発振器により超音波を発振させ、その発振
を可動部材により移動可能な振動子に伝達させ、前記振
動子を濾過面に関連して移動させて、前記濾過面に超音
波を与えて洗浄することを特徴とする固液分離装置の濾
過面の洗浄方法。 （２）空気洗浄又は水洗浄又はその両方を組合せた洗浄
を超音波洗浄と同時に行うことを特徴とする請求項１記
載の固液分離装置の濾過面の洗浄方法。 （３）超音波発振器と、上下左右に移動可能な可動部材
と、前記可動部材に取り付けらて、濾過面の任意の位置
に移動可能であり、かつ前記超音波発振器に接続された
振動子とを具備することを特徴とする固液分離装置。 （４）前記濾過面の材質が無機質の材質であることを特
徴とする前記（３）記載の固液分離装置の濾過面洗浄装
置。 前記濾過面の材質としては、セラミック、金属、ガラス
等が好ましく、他にＣａＣＯ3、砂、アンスラサイト、
コークス、レンガ、タイル、溶融スラグが挙げられる
が、金属としてはステンレススチールが好ましい。According to the present invention, the above-mentioned object has been attained by the following means. (1) Ultrasonic waves are oscillated by an ultrasonic oscillator, the oscillation is transmitted to a movable vibrator by a movable member, the vibrator is moved in relation to a filtering surface, and ultrasonic waves are applied to the filtering surface. A method for cleaning a filtration surface of a solid-liquid separation device, comprising: (2) The method for cleaning a filtration surface of a solid-liquid separation apparatus according to claim 1, wherein the air cleaning, the water cleaning, or a combination of both is performed simultaneously with the ultrasonic cleaning. (3) an ultrasonic oscillator, a movable member movable up, down, left and right, and a vibrator attached to the movable member, movable to an arbitrary position on the filtration surface, and connected to the ultrasonic oscillator. A solid-liquid separation device comprising: (4) The filtration surface cleaning device of the solid-liquid separation device according to (3), wherein the material of the filtration surface is an inorganic material. As the material of the filtration surface, ceramic, metal, glass and the like are preferable, and in addition, CaCO 3 , sand, anthracite,
Coke, brick, tile, and molten slag are mentioned, and stainless steel is preferable as the metal.
【０００５】[0005]
【発明の実施の形態】本発明においては、濾過面の目詰
まりの除去のために、超音波振動子を上下・左右に移動
可能に用いることにより、効果的かつ経済的な洗浄が可
能としたものである。超音波振動子を移動可能にするた
めに、固液分離装置内に移動可能である可動部材を設
け、その可動部材に超音波振動子を保持させ、その超音
波振動子に超音波発振器を接続して超音波発振器からの
振動を伝導することにより、超音波振動子より超音波を
濾過面に伝えるようにする。前記可動部材としては、直
線状の支持体の上を上下・左右に移動できる部材でもよ
いし、場合によっては回転可能なアーム状体でもよい。
可動部材は濾過面全体に超音波振動子が移動できるよう
なものであることが好ましい。超音波振動子は可動部材
の端部に設けることが好ましい。このようにして、濾過
面全体に超音波洗浄が行われるようにする。このようす
る超音波洗浄の際に、水・空気等を組み合わせて洗浄す
ると、さらに効果的である。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, effective and economical cleaning is made possible by using an ultrasonic vibrator movably up and down and left and right to remove clogging of a filtration surface. Things. In order to make the ultrasonic transducer movable, a movable member is provided in the solid-liquid separation device, the movable member holds the ultrasonic transducer, and an ultrasonic oscillator is connected to the ultrasonic transducer. Then, by transmitting the vibration from the ultrasonic oscillator, the ultrasonic wave is transmitted from the ultrasonic vibrator to the filtering surface. The movable member may be a member that can move up and down, left and right on a linear support, or may be a rotatable arm.
Preferably, the movable member is such that the ultrasonic transducer can move over the entire filtering surface. The ultrasonic transducer is preferably provided at an end of the movable member. Thus, ultrasonic cleaning is performed on the entire filtering surface. In the case of such ultrasonic cleaning, it is more effective to perform cleaning by combining water, air, and the like.
【０００６】なお、濾過面を構成する濾過体は、孔径
０．１〜２００μｍのセラミック、金属等の無機性の材
質のものであれば、孔径１０μｍ以下の精密濾過膜で
も、孔径１０μｍ以上の濾過体のいずれであっても構わ
ない。孔径１０μｍ以上の濾過体を用いた汚泥層濾過
は、その濾過体表面に形成される汚泥層により、孔径よ
りも小さい粒子も分離可能となる。また、濾過体そのも
の形状は、平板状、管状、スパイラル型等が考えられ
る。更に、濾過面の洗浄のためには、濾過運転中、超音
波を常時発振させてもよく、あるいは、濾過装置の圧力
損失が設定値以上（例えば１ｋｇ／ｃｍ2 ）に達したと
き、間欠的に超音波を発振させるようにしてもよい。た
だし、濾過面の洗浄は、濾過処理とは別に行ったが洗浄
効果は高い。[0006] If the filter body constituting the filtration surface is made of an inorganic material such as ceramic or metal having a pore diameter of 0.1 to 200 µm, even if it is a microfiltration membrane having a pore diameter of 10 µm or less, the filtration body having a pore diameter of 10 µm or more can be used. It can be any of the bodies. In the sludge layer filtration using a filter having a pore size of 10 μm or more, particles smaller than the pore size can be separated by the sludge layer formed on the surface of the filter. The shape of the filter itself may be a flat plate, a tube, a spiral type, or the like. Further, for cleaning the filtration surface, ultrasonic waves may be constantly oscillated during the filtration operation, or when the pressure loss of the filtration device reaches a set value or more (for example, 1 kg / cm 2 ), intermittent. Alternatively, the ultrasonic wave may be oscillated. However, although the washing of the filtration surface was performed separately from the filtration treatment, the washing effect was high.
【０００７】本発明は、上記の構成を有するので、下記
の作用を生じる。 （１）強力な超音波キャビテーションにより、濾過面内
部の目詰まりの原因となるきょう雑物を効果的に洗浄、
除去する。 （２）超音波振動子が可動式であるため、各濾過モジュ
ールの最適な場所で超音波洗浄が可能である。 （３）各濾過モジュールに超音波振動子をつける必要が
ないため、超音波振動子の数を減らすことができ、経済
的である。 （４）他の洗浄と併用することにより、さらに洗浄効果
が向上する。[0007] The present invention has the above-described structure, and thus has the following effects. (1) Powerful ultrasonic cavitation effectively cleans foreign matter causing clogging inside the filtration surface.
Remove. (2) Since the ultrasonic vibrator is movable, ultrasonic cleaning can be performed at an optimum location of each filtration module. (3) Since it is not necessary to attach an ultrasonic oscillator to each filtration module, the number of ultrasonic oscillators can be reduced, which is economical. (4) The cleaning effect is further improved when used in combination with other cleaning.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
するが、本発明はこれに限定されるものではない。図１
は、本発明の濾過面洗浄装置を設けた固液分離装置の斜
視図であり、図２は超音波を利用して濾過面を洗浄する
装置の概略平面図であり、図３は超音波洗浄を行う濾過
面洗浄装置の概略縦断面図である。両者とも空気及び／
又は水と超音波洗浄とを同時に行える。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited thereto. FIG.
1 is a perspective view of a solid-liquid separation device provided with a filtration surface cleaning apparatus of the present invention, FIG. 2 is a schematic plan view of an apparatus for cleaning a filtration surface using ultrasonic waves, and FIG. It is a schematic longitudinal cross-sectional view of the filtration surface washing apparatus which performs. Both are air and / or
Alternatively, water and ultrasonic cleaning can be performed simultaneously.
【０００９】実施例１及び比較例１ 図１及び図２において、固液分離装置１の中に、濾過面
洗浄装置として、超音波発振器２に接続された振動子３
が上下、左右に移動可能な可動式アーム（振動伝達子、
図示省略）の先に固定されている。振動子３は、可動式
アームによって濾過体（濾過エレメント）４の任意の場
所に移動可能である。更に、このアームが濾過エレメン
ト４の両端にある場合、同一濾過エレメント４の両端か
ら同時に超音波洗浄可能であり、片側からの洗浄と比
べ、洗浄効果が高い。特に、多数の濾過エレメント４か
ら成る固液分離装置１（図２参照）においては、最小数
の超音波振動子３により、最大の洗浄効果が得られるこ
ととなる。なお、超音波の周波数は２０〜１００ｋＨｚ
（好ましくは３０〜５０ｋＨｚ）がよい。また、超音波
発振器は、周波数の切替えが可能であり、タイマー切替
え等により段階的に周波数を変えることにより、洗浄力
がさらに向上する。例えば、２８ｋＨｚが２分、４５ｋ
Ｈｚが２分、１００ｋＨｚが１分としてもよい。Example 1 and Comparative Example 1 In FIGS. 1 and 2, a vibrator 3 connected to an ultrasonic oscillator 2 as a filtration surface cleaning device is provided in a solid-liquid separation device 1.
Is a movable arm (vibration transmitter,
(Not shown). The vibrator 3 can be moved to any location on the filter (filter element) 4 by a movable arm. Further, when the arms are provided at both ends of the filtration element 4, ultrasonic cleaning can be performed simultaneously from both ends of the same filtration element 4, and the cleaning effect is higher than the cleaning from one side. In particular, in the solid-liquid separation device 1 (see FIG. 2) including a large number of filtration elements 4, the maximum cleaning effect can be obtained with the minimum number of ultrasonic transducers 3. The frequency of the ultrasonic wave is 20 to 100 kHz.
(Preferably 30 to 50 kHz). In addition, the frequency of the ultrasonic oscillator can be switched, and the detergency is further improved by changing the frequency stepwise by switching the timer or the like. For example, 28 kHz is 2 minutes, 45 kHz
Hz may be 2 minutes and 100 kHz may be 1 minute.
【００１０】なお、全図を通じて、アームは矢印Ａで示
す水平方向にＡ１〜Ａ２の範囲に、矢印Ｂで示す垂直方
向にＢ１〜Ｂ２の範囲に自由に移動可能に構成されてい
る。また、５は、生物処理槽を兼ねた濾過装置の場合、
生物処理に必要な酸素を供給するため、及び比較的低圧
力１０〜３０ｋＰａで操作するエネルギー消費の少ない
膜濾過装置用の膜モジュール（濾過エレメント）４の直
下に設けた散気装置６によりクロスフローを作り出すた
めの空気配管である。Note that throughout the drawings, the arm is freely movable in the range of A1 to A2 in the horizontal direction indicated by arrow A and in the range of B1 to B2 in the vertical direction indicated by arrow B. 5 is a filtration device that also serves as a biological treatment tank,
Cross-flow by an air diffuser 6 provided immediately below a membrane module (filtration element) 4 for supplying oxygen necessary for biological treatment and for a low-energy membrane filtration device operated at a relatively low pressure of 10 to 30 kPa. It is an air pipe for producing.
【００１１】更に、図３において、７は洗浄用の空気や
水を濾過エレメント４へ送るための洗浄用配管であり、
８と９は洗浄と処理排水の切り換えと流量調整するため
のバルブであり、Ｐは処理水の排水ポンプであり、１０
は固液分離処理水の排出管である。なお、図２は前記し
たように濾過面の洗浄を超音波洗浄により行う洗浄装置
の平面図であり、図３はその縦断面図であり、両者とも
空気及び／又は水と超音波洗浄とを同時に行って、洗浄
効果を向上させる洗浄装置の説明図である。超音波洗浄
を行う実施例と、濾過面の超音波洗浄を行わない比較例
の各々の実験条件を第１表に、実験結果を第２表にそれ
ぞれに示す。Further, in FIG. 3, reference numeral 7 denotes a cleaning pipe for sending air or water for cleaning to the filtration element 4.
Numerals 8 and 9 denote valves for switching between washing and treatment wastewater and adjusting the flow rate. P denotes a treatment water drainage pump.
Is a discharge pipe of the solid-liquid separation treated water. FIG. 2 is a plan view of the cleaning apparatus for cleaning the filtration surface by ultrasonic cleaning as described above, and FIG. 3 is a longitudinal sectional view of the cleaning apparatus, in which air and / or water and ultrasonic cleaning are used. It is explanatory drawing of the cleaning apparatus which performs simultaneously and improves a cleaning effect. Table 1 shows the experimental conditions of the example in which the ultrasonic cleaning was performed and the comparative example in which the ultrasonic cleaning of the filtration surface was not performed. Table 2 shows the experimental results.
【００１２】[0012]
【表１】 [Table 1]
【００１３】[0013]
【表２】 [Table 2]
【００１４】１回／週の頻度で超音波洗浄を行うことに
より、透過流束Ｆｌｕｘの低下が抑えられ、超音波洗浄
を行わない場合の２割もＦｌｕｘが上昇した。また、１
年以上の実験を継続した現在でも、薬品洗浄を行う必要
がなく、膜の目詰まりによる濾過体の交換の必要はな
い。By performing the ultrasonic cleaning once / week, a decrease in the flux Flux was suppressed, and the flux increased by 20% when the ultrasonic cleaning was not performed. Also, 1
Even after more than a year of experimentation, there is no need for chemical cleaning and no need to replace the filter due to membrane clogging.
【００１５】[0015]
【発明の効果】本発明によれば、濾過面を有する固液分
離装置において、可動式の超音波振動子により濾過面を
洗浄することにより、（１）強力な超音波キャビテーシ
ョンで効果的に洗浄可能となり、（２）超音波振動子を
最適な場所に移動可能であるため、超音波の効果を最大
限に利用可能になり、（３）超音波振動子の数を減らす
ことができ、経済的であり、更に（４）他の洗浄方法と
の併用により洗浄効果向上が可能となる。（５）濾過面
の材質に無機質を用いることにより、超音波による振動
を伝わりやすくし、洗浄効果を高めることができる。According to the present invention, in a solid-liquid separation device having a filtration surface, the filtration surface is cleaned by a movable ultrasonic vibrator, whereby (1) effective cleaning by strong ultrasonic cavitation. (2) The ultrasonic transducer can be moved to an optimal place, so that the effect of the ultrasonic wave can be used to the maximum. (3) The number of the ultrasonic transducers can be reduced, and the economy can be reduced. (4) The cleaning effect can be improved by using the cleaning method together with another cleaning method. (5) By using an inorganic material as the material of the filtration surface, vibrations due to ultrasonic waves can be easily transmitted, and the cleaning effect can be enhanced.
【図１】本発明の濾過面洗浄装置を設けた固液分離装置
の斜視図を示す。FIG. 1 is a perspective view of a solid-liquid separation device provided with a filtration surface cleaning device of the present invention.
【図２】超音波を利用する濾過面洗浄装置の概略平面図
を示す。FIG. 2 is a schematic plan view of a filtration surface cleaning apparatus using ultrasonic waves.
【図３】超音波を利用する濾過面洗浄装置の概略縦断側
面図である。FIG. 3 is a schematic longitudinal sectional side view of a filtration surface cleaning device using ultrasonic waves.
１ 固液分離装置（又は生物処理を兼ねた固液分離装
置） ２ 超音波発振器 ３ 振動子 ４ 濾過体（濾過エレメント） ５ 空気配管 ６ 散気装置 ７ 洗浄用配管 ８ バルブ ９ バルブ １０ 固液分離処理水の排出管 Ｐ 処理水の排水ポンプDESCRIPTION OF SYMBOLS 1 Solid-liquid separation apparatus (or solid-liquid separation apparatus which also performed biological treatment) 2 Ultrasonic oscillator 3 Transducer 4 Filtration element (filtration element) 5 Air piping 6 Air diffuser 7 Cleaning pipe 8 Valve 9 Valve 10 Solid-liquid separation Discharge pipe for treated water P Drain pump for treated water
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｄ 71/02 Ｂ０８Ｂ 5/02 Ａ Ｂ０８Ｂ 3/12 Ｂ０１Ｄ 29/38 ５２０Ｄ 5/02 29/04 ５２０Ｃ ５２０Ａ 29/38 ５２０Ｃ Ｆターム(参考） 3B116 AA46 AB53 BB77 BB85 CC05 3B201 AA46 AB53 BB77 BB85 BB92 BB98 CC21 4D006 GA07 HA21 HA41 HA61 HA93 JA31A JA35A JA51A KA43 KB21 KC13 KC14 MA02 MA03 MA21 MC02X MC03 PB04 PB08 PB15 PC61 4D064 AA05 BC16 DA01 DC03 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B01D 71/02 B08B 5/02 A B08B 3/12 B01D 29/38 520D 5/02 29/04 520C 520A 29 / 38 520C F-term (reference) 3B116 AA46 AB53 BB77 BB85 CC05 3B201 AA46 AB53 BB77 BB85 BB92 BB98 CC21 4D006 GA07 HA21 HA41 HA61 HA93 JA31A JA35A JA51A KA43 KB21 KC13 KC14 MA02 MA03 MA21 MC02B MC03 P03 DC03 P03
Claims (4)
その発振を可動部材により移動可能な振動子に伝達さ
せ、前記振動子を濾過面に関連して移動させて、前記濾
過面に超音波を与えて洗浄することを特徴とする固液分
離装置の濾過面の洗浄方法。An ultrasonic oscillator is oscillated by an ultrasonic oscillator,
The oscillation is transmitted to a vibrator movable by a movable member, the vibrator is moved in relation to a filtration surface, and the filtration surface is washed by applying an ultrasonic wave thereto. How to wash the filtration surface.
せた洗浄を超音波洗浄と同時に行うことを特徴とする請
求項１記載の固液分離装置の濾過面の洗浄方法。2. The method for cleaning a filtration surface of a solid-liquid separation apparatus according to claim 1, wherein the air cleaning, the water cleaning, or a combination of both is performed simultaneously with the ultrasonic cleaning.
可動部材と、前記可動部材に取り付けらて、濾過面の任
意の位置に移動可能であり、かつ前記超音波発振器に接
続された振動子とを具備することを特徴とする固液分離
装置。3. An ultrasonic oscillator, a movable member movable up, down, left and right, and a vibration attached to the movable member, movable to an arbitrary position on a filtration surface, and connected to the ultrasonic oscillator. And a solid-liquid separation device.
ことを特徴とする請求項３記載の固液分離装置の濾過面
洗浄装置。4. The apparatus according to claim 3, wherein the material of the filtration surface is an inorganic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30926699A JP2001120918A (en) | 1999-10-29 | 1999-10-29 | Cleaning method of filter surface and solid-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30926699A JP2001120918A (en) | 1999-10-29 | 1999-10-29 | Cleaning method of filter surface and solid-liquid separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001120918A true JP2001120918A (en) | 2001-05-08 |
Family
ID=17990935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30926699A Pending JP2001120918A (en) | 1999-10-29 | 1999-10-29 | Cleaning method of filter surface and solid-liquid separator |
Country Status (1)
| Country | Link |
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| JP (1) | JP2001120918A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005255893A (en) * | 2004-03-12 | 2005-09-22 | Kaneka Corp | Method for manufacturing polymer by filtering off and removing solids |
| JP2007111623A (en) * | 2005-10-20 | 2007-05-10 | Tsukishima Kikai Co Ltd | Filtration unit |
| CN104056817A (en) * | 2014-06-21 | 2014-09-24 | 陕西华嘉机电设备有限公司 | Ultrasonic self-cleaning method and ultrasonic self-cleaning device for air strainer |
| JP2014205110A (en) * | 2013-04-12 | 2014-10-30 | 国立大学法人三重大学 | Waste water treatment apparatus provided with solid-liquid separation unit |
| WO2015052840A1 (en) * | 2013-10-11 | 2015-04-16 | 三菱電機株式会社 | Water treatment device and hot-water supply device |
| CN112452919A (en) * | 2020-11-04 | 2021-03-09 | 江西中竹生物质科技有限公司 | Anti-blocking device and reaction containing pool comprising same |
| WO2023132146A1 (en) * | 2022-01-06 | 2023-07-13 | 株式会社デンソー | Water treatment device |
-
1999
- 1999-10-29 JP JP30926699A patent/JP2001120918A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005255893A (en) * | 2004-03-12 | 2005-09-22 | Kaneka Corp | Method for manufacturing polymer by filtering off and removing solids |
| JP2007111623A (en) * | 2005-10-20 | 2007-05-10 | Tsukishima Kikai Co Ltd | Filtration unit |
| JP4663477B2 (en) * | 2005-10-20 | 2011-04-06 | 月島機械株式会社 | Filtration unit |
| JP2014205110A (en) * | 2013-04-12 | 2014-10-30 | 国立大学法人三重大学 | Waste water treatment apparatus provided with solid-liquid separation unit |
| WO2015052840A1 (en) * | 2013-10-11 | 2015-04-16 | 三菱電機株式会社 | Water treatment device and hot-water supply device |
| JPWO2015052840A1 (en) * | 2013-10-11 | 2017-03-09 | 三菱電機株式会社 | Water treatment device, hot water supply device and heating device |
| CN104056817A (en) * | 2014-06-21 | 2014-09-24 | 陕西华嘉机电设备有限公司 | Ultrasonic self-cleaning method and ultrasonic self-cleaning device for air strainer |
| CN112452919A (en) * | 2020-11-04 | 2021-03-09 | 江西中竹生物质科技有限公司 | Anti-blocking device and reaction containing pool comprising same |
| WO2023132146A1 (en) * | 2022-01-06 | 2023-07-13 | 株式会社デンソー | Water treatment device |
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