JPH01249119A - Cross-flow filtration device - Google Patents
Cross-flow filtration deviceInfo
- Publication number
- JPH01249119A JPH01249119A JP63077072A JP7707288A JPH01249119A JP H01249119 A JPH01249119 A JP H01249119A JP 63077072 A JP63077072 A JP 63077072A JP 7707288 A JP7707288 A JP 7707288A JP H01249119 A JPH01249119 A JP H01249119A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- treated
- filter
- cross
- fine particles
- 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.)
- Granted
Links
- 238000009295 crossflow filtration Methods 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000010419 fine particle Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 abstract description 19
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 239000000706 filtrate Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 6
- 239000011362 coarse particle Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000012531 culture fluid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はクロスフロー濾過方法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a cross-flow filtration method.
（従来技術）
クロスフロー濾過は、微細微粒子が混在する被処理液を
濾過器内のフィルタの一側に沿って流動させつつ濾過す
るものであり、フィルタの一側に堆積する上記微粒子の
ケークを前記被処理液の平行流による剪断力にて最少に
保ち、安定した濾過状態を長期間維持しようとするもの
である。かかるクロスフロー濾過は被処理液中に懸濁す
る数１０六〜数１０μｍといった微粒子の分離に適し、
例えば食品、飲料分野における各種飲料水、調味料等の
仕上げ濾過、化学分野における各種プロセス液の精製濾
過、機械分野における各種機械油、メツキ液の再生濾過
、生化学分野におけるバイオ液、培養液の精製濾過、菌
体濃縮等広い分野で利用されている。(Prior art) Cross-flow filtration is a method in which a liquid to be treated containing fine particles is filtered while flowing along one side of a filter in a filter, and a cake of the above-mentioned particles accumulated on one side of the filter is filtered. The purpose is to maintain a stable filtration state for a long period of time by keeping the shearing force to a minimum due to the parallel flow of the liquid to be treated. Such cross-flow filtration is suitable for separating fine particles of several tens of micrometers to several tens of micrometers suspended in the liquid to be treated.
For example, finishing filtration of various drinking water and seasonings in the food and beverage field, purification filtration of various process liquids in the chemical field, regeneration filtration of various machine oils and methane liquids in the machinery field, biofluids and culture fluids in the biochemistry field, etc. It is used in a wide range of fields such as purification filtration and bacterial cell concentration.
（発明が解決しようとする課題）′
ところで、クロスフロー濾過において被処理液中の微粒
子が微細になればなるほど微粒子相互の付着力およびフ
ィルタ表面に対する付着力が大きくなり、堆積するケー
クは緻密でかつ剥離され難い。このため、かかる被処理
液の濾過処理においては濾過速度が早期に低下し、濾過
効率が悪い。(Problem to be Solved by the Invention)' By the way, in cross-flow filtration, the finer the particles in the liquid to be treated, the greater the adhesion force between the particles and the filter surface, and the deposited cake becomes dense and dense. Hard to peel off. For this reason, in the filtration treatment of such a liquid to be treated, the filtration rate decreases early, resulting in poor filtration efficiency.
これに対処するには、被処理液の供給速度を高めてその
流動時の剪断力を大きくする必要があるが、これにより
動力費が極めて大きくなる。To deal with this, it is necessary to increase the supply rate of the liquid to be treated and increase the shearing force during its flow, but this increases the power cost extremely.
従って、本発明の目的は、動力費を場大させることなく
濾過効率の高いクロスフロー濾過方法を提供することに
ある。Therefore, an object of the present invention is to provide a cross-flow filtration method with high filtration efficiency without increasing power costs.
（課題を解決するための手段）
本発明は上記したクロスフロー濾過方法において、前記
循環系路に被処理液中の微粒子より大径で同粒子を吸着
する物質または粗大化する物質を供給することを特徴と
するものである。(Means for Solving the Problems) The present invention provides, in the above-described cross-flow filtration method, supplying to the circulation system a substance that has a larger diameter than the fine particles in the liquid to be treated and adsorbs the fine particles, or a substance that coarsens the fine particles. It is characterized by:
本発明で用いるクロスフロー濾過器を構成するフィルタ
としては、多孔質の合成樹脂、セラミック、ガラス、金
属等各種材料からなるフィルタが使用される。また、セ
ラミック質のフィルタとしては単層または多孔質支持体
の一側にフィルタ膜を有する複層構造のものが、かつフ
ィルタ膜としてはセラミック膜、多孔質ガラス膜、金属
膜、有機膜等が使用される。これらのフィルタにおける
フィルタ膜、フィルタ部における平均細孔径は０゜０５
μｍ〜１０μｍである。As the filter constituting the cross-flow filter used in the present invention, filters made of various materials such as porous synthetic resin, ceramic, glass, and metal are used. Ceramic filters include single-layer or multi-layer structures with a filter membrane on one side of a porous support, and filter membranes include ceramic membranes, porous glass membranes, metal membranes, organic membranes, etc. used. The average pore diameter in the filter membrane and filter part of these filters is 0°05
It is μm to 10 μm.
また、本発明において循環系路に供給する物質は被処理
液中の微粒子を吸着する物質（吸着物質）または粗大化
する物質（粗大化物質）であり、吸着物質としては活性
炭、ブリケットチャー、多孔質ガラス、ゼオライト等の
無機多孔質粒子が好ましく、かつ粒径数１０μｍ〜数ｍ
ｍ、平均細孔径数ｌＯＡ〜数１００ＯＡの球形またはこ
れに近い形状であることが好ましい、また、後者の粗大
化物質としては硫酸パン土、塩化第二鉄等の凝集剤、カ
オチン系、アニオン系、ノニオン系等の高分子凝集剤が
好ましく、これら２種類の凝集剤はそれぞれ単独または
併用して使用され、さらにはカオリン、ベントナイト、
水酸化カルシウム等の凝集助剤と併用して使用される。In addition, in the present invention, the substance supplied to the circulation system is a substance that adsorbs fine particles in the liquid to be treated (adsorption substance) or a substance that coarsens them (coarsening substance), and examples of the adsorption substance include activated carbon, briquette char, porous Inorganic porous particles such as fine glass and zeolite are preferable, and the particle size is from several tens of micrometers to several meters.
It is preferable to have a spherical shape or a shape close to this with an average pore diameter of several 1OA to several 100OA, and the latter coarsening substances include flocculants such as clay sulfate and ferric chloride, cationic and anionic substances. , nonionic polymer flocculants are preferred, and these two types of flocculants are used alone or in combination, and furthermore, kaolin, bentonite,
Used in combination with coagulation aids such as calcium hydroxide.
（発明の作用・効果）
かかるクロスフロー濾過方法においては、被処理液中の
微細微粒子が吸着物質に吸着され同物質と一体となって
粗大粒子となり、または粗大化物質を介して互に凝集し
て粗大粒子となる。このため、フィルタ表面に堆積する
ケークは密度が粗くて多くの空隙を有し、かつケークを
構成する粗大粒子は互いにおよび／またはフィルタ表面
から剥離しやすい状態にある。従って、堆積ケークの空
隙率の増大により濾過速度の低下が著しく抑制されると
ともに、フィルタ表面での堆積ケークの成長が抑制され
て濾過速度の低下が著しく抑制され、被処理液の供給速
度を増大させることなく濾過効率を高めることができる
。(Operations and Effects of the Invention) In such a cross-flow filtration method, fine particles in the liquid to be treated are adsorbed by an adsorbing substance and become integrated with the same substance to become coarse particles, or aggregate with each other via the coarsening substance. becomes coarse particles. Therefore, the cake deposited on the filter surface has a coarse density and has many voids, and the coarse particles constituting the cake tend to peel off from each other and/or from the filter surface. Therefore, the decrease in filtration rate is significantly suppressed due to the increase in the porosity of the deposited cake, and the growth of the deposited cake on the filter surface is suppressed, thereby significantly suppressing the decrease in filtration rate, and the supply rate of the liquid to be treated is increased. It is possible to increase filtration efficiency without causing any damage.
（実施例）
ロスフロー濾過装置
図面は本発明の濾過方法を実施するためのクロスフロー
濾過装置の概略を示すもので、当該装置の循環系路１１
内には循環ポンプ１２とクロスフロー濾過器１３とが介
装されており、かつ循環ポンプ１２は被処理液を貯溜す
るタンク１４に連結されている。濾過器１３はケーシン
グ内に多数のパイプ状フィルタを収容してなるもので、
各フィルタはセラミック質の多孔質基体の内周側にセラ
ミック質のフィルタ膜を備えている。当該装置において
は、循環ポンプ１２の駆動によりタンク１４内の被処理
液が濾過器１３内に供給され、濾過器１３内にて各フィ
ルタの内周側１３ａ内をこれに沿って流動する。定常の
運転状悪においては、被処理液は循環路系路１１を循環
し、この間被処理液の一部は各フィルタの内周側１３ａ
から外周側１３ｂへ透過して清澄な濾液として系外へ流
出する。また、タンク１４からは流出する濾液に対応す
る量の被処理液が循環ポンプ１２を通して循環系路１１
に供給される。なお、タンク１４内には被処理液が流入
するとともに、所定量の吸着物質または粗大化物質が添
加される。(Example) Cross-flow filtration device The drawing shows an outline of a cross-flow filtration device for carrying out the filtration method of the present invention.
A circulation pump 12 and a cross-flow filter 13 are interposed therein, and the circulation pump 12 is connected to a tank 14 that stores the liquid to be treated. The filter 13 is made up of a large number of pipe-shaped filters housed within a casing.
Each filter includes a ceramic filter membrane on the inner peripheral side of a ceramic porous substrate. In this apparatus, the liquid to be treated in the tank 14 is supplied into the filter 13 by driving the circulation pump 12, and flows along the inner peripheral side 13a of each filter in the filter 13. Under steady operating conditions, the liquid to be treated circulates through the circulation path 11, and during this period, a part of the liquid to be treated flows to the inner peripheral side 13a of each filter.
It permeates through the outer peripheral side 13b and flows out of the system as a clear filtrate. Further, from the tank 14, an amount of the liquid to be treated corresponding to the filtrate flowing out is passed through the circulation pump 12 to the circulation system line 11.
is supplied to It should be noted that while the liquid to be treated flows into the tank 14, a predetermined amount of an adsorbing substance or a coarsening substance is added thereto.
試験例
フィルタ膜の平均細孔径が０．２μｍのセラミックス質
のパイプ状フィルタを多数収容したクロスフロー濾過器
を備えた図面に示すクロスフロー濾過装置を使用して、
染料および油性エマルジョン含有の探傷剤廃液のクロス
フロー濾過試験を下記の条件で行い、定常状態における
濾過速度（ρ／１２・ｈｒ）および濾過精度（１ｍｇ／
ρ：混入微粒子量）を測定した。得られた結果を別表に
示す。Test Example Using the cross-flow filtration device shown in the drawing, which is equipped with a cross-flow filter that accommodates a large number of ceramic pipe-shaped filters whose filter membranes have an average pore diameter of 0.2 μm,
A cross-flow filtration test of flaw detection agent waste containing dye and oil emulsion was conducted under the following conditions, and the filtration rate (ρ/12・hr) and filtration accuracy (1 mg/hr) in steady state were evaluated.
ρ: amount of mixed fine particles) was measured. The results obtained are shown in the attached table.
条件
被処理液中微粒子の平均粒径： ０．０５μｍ被処理液
中微粒子の濃度： １０００ｍｇ／ρ被処理液の循環流
速： ３ｍ／ｓｅｃ
濾過圧カニ １ｋｇ／ａｍ”
濾過温度−２０℃
（以下余白）Conditions Average particle size of fine particles in the liquid to be treated: 0.05 μm Concentration of fine particles in the liquid to be treated: 1000 mg/ρ Circulation flow rate of the liquid to be treated: 3 m/sec Filtration pressure 1 kg/am” Filtration temperature -20°C (Margin below) )
図面は本発明のクロスフロー濾過方法を実施するための
濾過装置の概略構成図である。
符号の説明
１１・・・循環系路、１２・・・循環ポンプ、１３・・
・濾過器、１４・・・タンク。The drawing is a schematic diagram of a filtration device for carrying out the cross-flow filtration method of the present invention. Explanation of symbols 11...Circulation system path, 12...Circulation pump, 13...
・Filter, 14...tank.
Claims (1)
在する被処理液を連続的に供給し、同被処理液を前記濾
過器内にてフィルタの一側に沿って流動させつつ濾過す
るクロスフロー濾過方法において、前記循環系路に前記
微粒子より大径で同粒子を吸着する物質または粗大化す
る物質を供給することを特徴とするクロスフロー濾過方
法。A cross that continuously supplies a liquid to be treated containing fine particles to a circulation system equipped with a cross-flow filter, and filters the liquid while flowing it along one side of the filter in the filter. A cross-flow filtration method characterized in that a substance having a diameter larger than that of the fine particles and adsorbing the same particles or a substance that coarsens the fine particles is supplied to the circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077072A JPH07112523B2 (en) | 1988-03-30 | 1988-03-30 | Cross flow filtration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077072A JPH07112523B2 (en) | 1988-03-30 | 1988-03-30 | Cross flow filtration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01249119A true JPH01249119A (en) | 1989-10-04 |
| JPH07112523B2 JPH07112523B2 (en) | 1995-12-06 |
Family
ID=13623589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63077072A Expired - Fee Related JPH07112523B2 (en) | 1988-03-30 | 1988-03-30 | Cross flow filtration method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07112523B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366634A (en) * | 1992-08-26 | 1994-11-22 | The United States Of America As Represented By The United States Department Of Energy | Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering |
| JP2006320862A (en) * | 2005-05-20 | 2006-11-30 | Japan Organo Co Ltd | Inorganic waste water treatment method and apparatus |
| JP2012239931A (en) * | 2011-05-16 | 2012-12-10 | Kurita Water Ind Ltd | Filter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205113A (en) * | 1987-02-18 | 1988-08-24 | Mitsui Kensaku Toishi Kk | Filtration |
-
1988
- 1988-03-30 JP JP63077072A patent/JPH07112523B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205113A (en) * | 1987-02-18 | 1988-08-24 | Mitsui Kensaku Toishi Kk | Filtration |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366634A (en) * | 1992-08-26 | 1994-11-22 | The United States Of America As Represented By The United States Department Of Energy | Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering |
| JP2006320862A (en) * | 2005-05-20 | 2006-11-30 | Japan Organo Co Ltd | Inorganic waste water treatment method and apparatus |
| JP4482488B2 (en) * | 2005-05-20 | 2010-06-16 | オルガノ株式会社 | Method and apparatus for treating inorganic wastewater |
| JP2012239931A (en) * | 2011-05-16 | 2012-12-10 | Kurita Water Ind Ltd | Filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112523B2 (en) | 1995-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5064531A (en) | Water filtration apparatus | |
| JPH04108518A (en) | Water treatment equipment with tangent filteration loop | |
| US20220234930A1 (en) | Method for Purifying Contaminated Water | |
| Shi et al. | Membrane interactions with NOM and an adsorbent in a vibratory shear enhanced filtration process (VSEP) system | |
| KR0161203B1 (en) | Intra-clarifier and a method of backwashing the filter bed | |
| JPH01249119A (en) | Cross-flow filtration device | |
| CN112624451A (en) | Photocatalytic multistage membrane separation coupling sewage treatment system | |
| JPS5876182A (en) | Biological water purifier | |
| JPH10249170A (en) | Waste water treatment using carbon-based adsorbent and deivce therefor | |
| Churchouse | Membrane bioreactors for wastewater treatment—operating experiences with the Kubota submerged membrane activated sludge process | |
| CN203715430U (en) | Electroplating nickel-containing wastewater up-to-standard treatment system for workshops of metallurgical plants | |
| JP3722084B2 (en) | Membrane separation wastewater treatment method and apparatus | |
| JPH07204658A (en) | Treatment of waste water containing oil | |
| Sridang et al. | Influence of module configuration and hydrodynamics in water clarification by immersed membrane systems | |
| RU162750U1 (en) | WATER AND WASTE WATER TREATMENT PLANT | |
| Chang et al. | Application of non-woven fabric material in membrane bioreactor processes for industrial wastewater treatment | |
| Arslankaya | ASSESSMENT OF FILTRATION PERFORMANCE AND APPLICABILITY OF LOW-COST CERAMIC MEMBRANES TO MEMBRANE BIOREACTOR (MBR) FOR MUNICIPAL WASTEWATER TREATMENT. | |
| Mousavi et al. | Titania Membrane Reactor Design, Configuration, and Performance | |
| Khan et al. | The effect of particulate material and the loading of bacteria on a high dose PAC-MF system | |
| Xu et al. | Evaluation of dynamic membrane formation and filtration models at constant pressure in a combined coagulation/dynamic membrane process in treating polluted river water | |
| RU2796307C1 (en) | Nanostructured sorbents for water purification from oil products and method of water purification | |
| JPH07124555A (en) | Water purifying and activating method and apparatus | |
| RU2006471C1 (en) | Method of purifying water against ferrum | |
| JP2667412B2 (en) | Oil-water separator | |
| CA2642031A1 (en) | Process and apparatus for separating immiscible liquids from aqueous fluids |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |