WO2014148084A1 - 濾過装置および濾過モジュールの洗浄方法 - Google Patents
濾過装置および濾過モジュールの洗浄方法 Download PDFInfo
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- WO2014148084A1 WO2014148084A1 PCT/JP2014/050968 JP2014050968W WO2014148084A1 WO 2014148084 A1 WO2014148084 A1 WO 2014148084A1 JP 2014050968 W JP2014050968 W JP 2014050968W WO 2014148084 A1 WO2014148084 A1 WO 2014148084A1
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- cleaning
- hollow fiber
- filtration
- fiber membrane
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/02—Forward flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/162—Use of acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/164—Use of bases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/20—By influencing the flow
- B01D2321/2008—By influencing the flow statically
- B01D2321/2025—Tangential inlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/20—By influencing the flow
- B01D2321/2033—By influencing the flow dynamically
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Definitions
- the present invention relates to a filtration device including a filtration module having a hollow fiber membrane bundle in which a plurality of hollow fiber membranes are bundled, and including a cleaning unit that removes turbid components adhering to the hollow fiber membrane by washing, and
- the present invention relates to a method for cleaning a filtration module.
- Turbidity components organic molecules, fine particles, oil droplets, plankton, and other organisms contained in seawater, river water, drainage, petroleum-related water, etc.
- TEP transparent exopolymer particles: transparent extracellular polymer
- filtration is performed by allowing raw water (treated water) supplied from the outside of the filtration module to pass from the outside to the inside hollow portion of the hollow fiber membrane.
- spray cleaning is performed by spraying wash water onto the surface of the hollow fiber membrane bundle at a high pressure to wash the filtration module, and eductor nozzles.
- jet cleaning that cleans the filtration module by generating a jet water flow of cleaning water in the filtration container by ejecting cleaning water from a bubbling jet nozzle is performed (for example, Patent Document 1).
- an object of the present invention is to provide a filtration device and a filtration method for a filtration module that can maintain a sufficiently high filtration efficiency even when filtration is continued for a long period of time.
- the present inventor examined the cause of why the filtration efficiency could not be maintained in a sufficiently high state in the case of a conventional filtration device in earnest examination on the solution of the above problems.
- the hollow fiber membrane bundle is configured by bundling a plurality of hollow fiber membranes, and even if spray cleaning or jet cleaning is performed on the surface of the hollow fiber membrane bundle, the hollow fiber membrane outside the hollow fiber membrane bundle is washed. Although it is possible, sufficient washing water is not supplied to the hollow fiber membranes on the inner side, so that the turbid components cannot be sufficiently removed, and unwashed residue tends to be generated inside the hollow fiber membrane bundle.
- the present inventor conducted various experiments and studies on means for preventing the occurrence of a small amount of unwashed residue inside the hollow fiber membrane bundle.
- a nozzle for internal cleaning is inserted into the hollow fiber membrane bundle and cleaning water is injected from the internal cleaning nozzle to generate an internal cleaning flow inside the hollow fiber membrane bundle, the hollow fiber membrane The bundle was appropriately washed from the inside, and it was confirmed that generation of unwashed residue could be prevented, and the present invention was completed.
- a filtration device comprising a filtration module having a bundle of hollow fiber membranes in which a plurality of hollow fiber membranes are bundled, a filtration container for housing the filtration module, and a washing unit for washing the filtration module,
- the cleaning unit sprays cleaning water from a tip of an internal cleaning nozzle inserted inside the hollow fiber membrane bundle, thereby generating an internal cleaning flow inside the hollow fiber membrane bundle, whereby the hollow fiber
- the turbid component adhering to the hollow fiber membrane inside the hollow fiber membrane bundle can be efficiently removed. Filtration efficiency can be maintained at a sufficiently high level.
- the second aspect of the present invention is:
- the internal cleaning nozzle is inserted perpendicularly to the longitudinal direction of the hollow fiber membrane bundle, and an injection port for injecting the cleaning water along the longitudinal direction of the hollow fiber membrane bundle is provided at the tip.
- It is a filtration apparatus of the 1st mode of the present invention which is an orthogonal nozzle.
- the third aspect of the present invention is: In addition to the internal cleaning unit, the cleaning unit is Separately from the internal cleaning nozzle, by spraying cleaning water from the tip of the external cleaning nozzle provided on the inner wall surface of the filtration container, generating a swirling cleaning flow that swirls around the hollow fiber membrane bundle
- the filtration device according to the first aspect or the second aspect of the present invention is provided with an external cleaning section for cleaning the hollow fiber membrane bundle from the outside.
- the swirl cleaning flow is generated in addition to the internal cleaning flow, so that the inside of the hollow fiber membrane bundle. Swirl cleaning flow enters. As a result, each of the hollow fiber membranes is in a state of being washed and the turbid components can be removed from inside and outside the hollow fiber membrane bundle.
- an external cleaning nozzle that generates a swirl cleaning flow for example, an eductor nozzle or a bubbling jet nozzle that generates a jet water flow is preferably used.
- the fourth aspect of the present invention is:
- the external cleaning nozzle penetrates the wall surface of the filtration container and is attached at an angle to the longitudinal direction of the hollow fiber membrane bundle, and is cleaned along the inner wall surface of the filtration container.
- It is a filtration apparatus of the 3rd mode of the present invention which is a slant nozzle provided with an injection port which injects water at the tip.
- a method of cleaning a filtration module using the filtration device according to any one of the first to fourth aspects of the present invention is a filtration module cleaning method for cleaning the hollow fiber membrane bundle from the inside by spraying cleaning water from the tip of the internal cleaning nozzle to generate an internal cleaning flow inside the hollow fiber membrane bundle.
- turbid components adhering to the hollow fiber membrane inside the hollow fiber membrane bundle can be efficiently removed by washing the hollow fiber membrane bundle from the inside by the internal washing flow.
- the sixth aspect of the present invention is: Washing of the filtration module according to the fifth aspect of the present invention wherein the filtration module is washed with wash water in which any one of acid, alkali, hypochlorite, and detergent is added to the water as the wash water. Is the method.
- the cleaning effect can be further improved by using cleaning water in which any one of acid, alkali, hypochlorite, and detergent is added to water.
- the filtration module is removed from the filtration device, and the filtration efficiency is recovered by immersing in the above-described aqueous solution of each drug for a predetermined time (for example, about half a day). .
- the filtration device by using an aqueous solution to which these chemicals are added as washing water, turbid components can be appropriately removed without performing the immersion treatment as described above. It is possible to effectively reduce the time and cleaning cost associated with the removal and attachment of the filtration module and the immersion. Moreover, the usage-amount of a chemical
- the seventh aspect of the present invention is Cleaning the filtration module according to the sixth aspect of the present invention, wherein the acid is citric acid, the alkali is sodium hydroxide, the hypochlorite is sodium hypochlorite, and the detergent is limonene. Is the method.
- citric acid as the acid can improve the cleaning efficiency for various turbid components in general.
- sodium hydroxide as the alkali
- sodium hypochlorite as the hypochlorite
- microorganisms it is possible to improve the cleaning efficiency with respect to turbid components of organic substances derived from plankton.
- limonene range oil
- the eighth aspect of the present invention is The present invention cleans the filtration module by changing the wash water in the order of the wash water to which the sodium hypochlorite is added, the wash water to which the sodium hydroxide is added, and the wash water to which the citric acid is added. It is a washing
- sodium hypochlorite, sodium hydroxide, and citric acid have different turbid components that can be removed, and the washing water is changed in the above order to wash different turbid components. By sequentially performing the steps, the cleaning efficiency can be further improved.
- the ninth aspect of the present invention provides The filtration according to the seventh aspect or the eighth aspect of the present invention, wherein the washing water to which the citric acid is added and the washing water to which the sodium hydroxide is added are mixed and neutralized, and then the washing water is discharged. This is a method for cleaning a module.
- the tenth aspect of the present invention provides Any of the sixth to ninth aspects of the present invention wherein the cleaning module is cleaned by circulating the cleaning water between a storage tank for storing the cleaning water to which the chemical is added and the filtration container. It is a washing
- the present invention it is possible to provide a filtration device and a filtration method for a filtration module that can maintain a sufficiently high filtration efficiency even when filtration is continued for a long period of time.
- the filtration device 1 includes a filtration module 2 having a hollow fiber membrane bundle 3 in which a plurality of hollow fiber membranes are bundled, and a filtration container 6 that houses the filtration module 2.
- a filtration module 2 having a hollow fiber membrane bundle 3 in which a plurality of hollow fiber membranes are bundled, and a filtration container 6 that houses the filtration module 2.
- 7 is an inflow pipe for raw water
- 8 is an outflow pipe for filtered water.
- the filtration device 1 of the present embodiment is different from the conventional filtration device in that, in addition to the above-described configuration, the filtration device 1 includes an internal cleaning unit that cleans the filtration module 2 from the inside.
- the internal cleaning section is hollowed from an injection port provided at the tip of an internal cleaning nozzle (orthogonal nozzle) 4 inserted perpendicularly to the longitudinal direction of the hollow fiber membrane bundle 3 into the hollow fiber membrane bundle 3.
- the washing module is ejected from the inside of the hollow fiber membrane bundle 3 by jetting washing water along the longitudinal direction of the yarn membrane bundle 3 to generate an internal washing flow J1 in the vertical direction inside the hollow fiber membrane bundle 3. Wash.
- the filtration device 1 of the present embodiment swirls around the hollow fiber membrane bundle 3 by injecting washing water from the tip of the external washing nozzle (oblique nozzle) 5 provided on the wall surface of the filtration container 6.
- An external cleaning unit for cleaning the filtration module 2 from the outside of the hollow fiber membrane bundle 3 by generating the swirl cleaning flow J2 is provided.
- the oblique nozzle 5 penetrates the wall surface of the filtration container 6 and is attached at a predetermined angle (for example, 5 ° to 45 °) with respect to the longitudinal direction of the hollow fiber membrane bundle 3.
- the swirl cleaning flow J2 can be easily generated by providing the tip with the injection port for injecting the cleaning water along the tip.
- FIG. 3 is the figure which showed each operation
- raw water containing turbid components such as organisms, fine particles, oil droplets, TEP, and the like is filtered from the inflow pipe 7 (see FIGS. 1 and 2).
- turbid components such as organisms, fine particles, oil droplets, TEP, and the like are left on the surface of the hollow fiber membrane by flowing into the inside and passing the hollow fiber membrane bundle 3 constituting the filtration module 2 from the outer surface side to the inner surface side of each hollow fiber membrane.
- the raw water is filtered. Thereafter, the filtered water moves through the inner cavity of the hollow fiber membrane along the longitudinal direction of the hollow fiber membrane bundle 3, and flows out from the outflow pipe 8 (see FIG. 3A).
- the filtered water outflow pipe 8 is sealed with the raw water inflow pipe 7 open to the outside, and then the washing water is injected from the orthogonal nozzle 4 and the oblique nozzle 5. .
- the washing water is jetted from the orthogonal nozzle 4, thereby causing the internal washing flow along the longitudinal direction of the hollow fiber membrane bundle 3 in the hollow fiber membrane bundle 3. J1 occurs. Thereby, the hollow fiber membrane bundle 3 is appropriately washed from the inside.
- the swirling cleaning flow J2 enters from the gap between the expanded hollow fiber membrane bundles 3 and the internal cleaning flow J1. Cooperate with each other to wash each of the hollow fiber membranes.
- the internal cleaning flow J1 is generated inside the hollow fiber membrane bundle 3 to appropriately wash the hollow fiber membrane bundle 3 from the inside. It is possible to prevent unwashing from occurring.
- the filtration device can appropriately remove not only the outer side of the hollow fiber membrane bundle but also the turbid components adhering to the inner hollow fiber membrane. High filtration efficiency can be maintained over a period of time.
- the filtering device 1 includes a drug addition unit (not shown) that adds a drug to the wash water, a storage tank 11 that stores the wash water to which the drug is added, and a storage tank.
- a washing water circulation line 12 for circulating the washing water to which the chemical is added is provided between the filter 11 and the filtration container 6.
- the storage tank 11 there are a NaClO tank 11a for storing wash water to which sodium hypochlorite has been added, a citric acid tank 11b for storing wash water to which citric acid has been added, and wash water to which sodium hydroxide has been added. And a NaOH tank 11c for storage.
- citric acid tank 11b and the NaOH tank 11c are connected via a drain pipe 13.
- wash water added with sodium hypochlorite is supplied from the NaClO tank 11a to the orthogonal nozzle 4 and the oblique nozzle 5 and filtered.
- organic turbid components adhering to the hollow fiber membrane are removed.
- the used washing water is discharged from the filtration container 6 to the washing water circulation line 12, supplied to the NaClO tank 11a through the washing water circulation line 12, and reused.
- washing water to which the respective chemicals are added is sprayed from the orthogonal nozzle 4 and the oblique nozzle 5 in the order of the NaOH tank 11c and the citric acid tank 11b.
- inorganic turbid components such as sand and stone attached to the hollow fiber membrane are removed.
- wash waters are also supplied to the respective storage tanks 11 through the wash water circulation line 12 and reused, as in the case of the wash water added with sodium hypochlorite.
- limonene that is suitable for decomposition and washing of TEP is particularly preferably used.
- Filtration device 2 Filtration module 3 Hollow fiber membrane bundle 4 Orthogonal nozzle (internal cleaning nozzle) 5 Oblique nozzle (nozzle for external cleaning) 6 Filtration container 7 Inflow pipe 8 Outflow pipe 11 Storage tank 11a NaClO tank 11b Citric acid tank 11c NaOH tank 12 Wash water circulation line 13 Drain pipe J1 Internal washing flow J2 Swirling washing flow P Pump
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Abstract
Description
中空糸膜が複数束ねられた中空糸膜束を有する濾過モジュールと、前記濾過モジュールを収容する濾過容器と、前記濾過モジュールを洗浄する洗浄部とを備えた濾過装置であって、
前記洗浄部が、前記中空糸膜束の内部に挿入された内部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の内部に内部洗浄流を発生させることにより、前記中空糸膜束を内部から洗浄する内部洗浄部を備えている濾過装置である。
前記内部洗浄用ノズルが、前記中空糸膜束の長手方向に対して垂直に挿入されており、前記中空糸膜束の長手方向に沿って前記洗浄水を噴射する噴射口が先端に設けられた直交ノズルである本発明の第1の態様の濾過装置である。
前記洗浄部が、前記内部洗浄部に加えて、
前記内部洗浄用ノズルとは別に前記濾過容器の内壁面に設けられた外部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の周囲を旋回する旋回洗浄流を発生させることにより、前記中空糸膜束を外部から洗浄する外部洗浄部を備えている本発明の第1の態様または第2の態様の濾過装置である。
前記外部洗浄用ノズルが、前記濾過容器の壁面を貫通して、前記中空糸膜束の長手方向に対して所定の角度に傾斜して取り付けられており、前記濾過容器の内壁面に沿って洗浄水を噴射する噴射口が先端に設けられた斜めノズルである本発明の第3の態様の濾過装置である。
本発明の第1の態様ないし第4の態様のいずれかの態様の濾過装置を用いた濾過モジュールの洗浄方法であって、
前記内部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の内部に内部洗浄流を発生させることにより、前記中空糸膜束を内部から洗浄する濾過モジュールの洗浄方法である。
前記洗浄水として、酸、アルカリ、次亜塩素酸塩、洗剤のいずれかの薬剤が水に添加された洗浄水を用いて前記濾過モジュールを洗浄する本発明の第5の態様の濾過モジュールの洗浄方法である。
前記酸がクエン酸であり、前記アルカリが水酸化ナトリウムであり、前記次亜塩素酸塩が次亜塩素酸ナトリウムであり、前記洗剤がリモネンである本発明の第6の態様の濾過モジュールの洗浄方法である。
前記次亜塩素酸ナトリウムが添加された洗浄水、前記水酸化ナトリウムが添加された洗浄水、前記クエン酸が添加された洗浄水の順に、洗浄水を変更して前記濾過モジュールを洗浄する本発明の第7の態様の濾過モジュールの洗浄方法である。
前記クエン酸が添加された洗浄水と前記水酸化ナトリウムが添加された洗浄水とを混合して中和させてから前記洗浄水を排出する本発明の第7の態様または第8の態様の濾過モジュールの洗浄方法である。
前記薬剤が添加された洗浄水を貯蔵する貯蔵タンクと前記濾過容器との間で前記洗浄水を循環させて、前記濾過モジュールを洗浄する本発明の第6の態様ないし第9の態様のいずれかの態様の濾過モジュールの洗浄方法である。
はじめに、本発明の一実施の形態に係る濾過装置について説明する。図1は本実施の形態に係る濾過装置を説明する図であり、図2は本実施の形態に係る濾過装置の外観を示す側面図である。
上記の実施の形態において示した濾過装置を用いた具体的な濾過モジュールの洗浄方法の一例について図4を参照しながら説明する。
2 濾過モジュール
3 中空糸膜束
4 直交ノズル(内部洗浄用ノズル)
5 斜めノズル(外部洗浄用ノズル)
6 濾過容器
7 流入管
8 流出管
11 貯蔵タンク
11a NaClOタンク
11b クエン酸タンク
11c NaOHタンク
12 洗浄水循環ライン
13 排水管
J1 内部洗浄流
J2 旋回洗浄流
P ポンプ
Claims (10)
- 中空糸膜が複数束ねられた中空糸膜束を有する濾過モジュールと、前記濾過モジュールを収容する濾過容器と、前記濾過モジュールを洗浄する洗浄部とを備えた濾過装置であって、
前記洗浄部が、前記中空糸膜束の内部に挿入された内部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の内部に内部洗浄流を発生させることにより、前記中空糸膜束を内部から洗浄する内部洗浄部を備えている濾過装置。 - 前記内部洗浄用ノズルが、前記中空糸膜束の長手方向に対して垂直に挿入されており、前記中空糸膜束の長手方向に沿って前記洗浄水を噴射する噴射口が先端に設けられた直交ノズルである請求項1に記載の濾過装置。
- 前記洗浄部が、前記内部洗浄部に加えて、
前記内部洗浄用ノズルとは別に前記濾過容器の内壁面に設けられた外部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の周囲を旋回する旋回洗浄流を発生させることにより、前記中空糸膜束を外部から洗浄する外部洗浄部を備えている請求項1または請求項2に記載の濾過装置。 - 前記外部洗浄用ノズルが、前記濾過容器の壁面を貫通して、前記中空糸膜束の長手方向に対して所定の角度に傾斜して取り付けられており、前記濾過容器の内壁面に沿って洗浄水を噴射する噴射口が先端に設けられた斜めノズルである請求項3に記載の濾過装置。
- 請求項1ないし請求項4のいずれか1項に記載の濾過装置を用いた濾過モジュールの洗浄方法であって、
前記内部洗浄用ノズルの先端から洗浄水を噴射して、前記中空糸膜束の内部に内部洗浄流を発生させることにより、前記中空糸膜束を内部から洗浄する濾過モジュールの洗浄方法。 - 前記洗浄水として、酸、アルカリ、次亜塩素酸塩、洗剤のいずれかの薬剤が水に添加された洗浄水を用いて前記濾過モジュールを洗浄する請求項5に記載の濾過モジュールの洗浄方法。
- 前記酸がクエン酸であり、前記アルカリが水酸化ナトリウムであり、前記次亜塩素酸塩が次亜塩素酸ナトリウムであり、前記洗剤がリモネンである請求項6に記載の濾過モジュールの洗浄方法。
- 前記次亜塩素酸ナトリウムが添加された洗浄水、前記水酸化ナトリウムが添加された洗浄水、前記クエン酸が添加された洗浄水の順に、洗浄水を変更して前記濾過モジュールを洗浄する請求項7に記載の濾過モジュールの洗浄方法。
- 前記クエン酸が添加された洗浄水と前記水酸化ナトリウムが添加された洗浄水とを混合して中和させてから前記洗浄水を排出する請求項7または請求項8に記載の濾過モジュールの洗浄方法。
- 前記薬剤が添加された洗浄水を貯蔵する貯蔵タンクと前記濾過容器との間で前記洗浄水を循環させて、前記濾過モジュールを洗浄する請求項6ないし請求項9のいずれか1項に記載の濾過モジュールの洗浄方法。
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Application Number | Priority Date | Filing Date | Title |
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CN201480017484.9A CN105073234A (zh) | 2013-03-22 | 2014-01-20 | 过滤设备和清洁过滤组件的方法 |
US14/778,679 US20160045872A1 (en) | 2013-03-22 | 2014-01-20 | Filtration apparatus and method for cleaning filtration module |
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JP2013-059471 | 2013-03-22 | ||
JP2013059471A JP2014184366A (ja) | 2013-03-22 | 2013-03-22 | 濾過装置および濾過モジュールの洗浄方法 |
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WO2014148084A1 true WO2014148084A1 (ja) | 2014-09-25 |
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US (1) | US20160045872A1 (ja) |
JP (1) | JP2014184366A (ja) |
CN (1) | CN105073234A (ja) |
WO (1) | WO2014148084A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104548937A (zh) * | 2014-10-29 | 2015-04-29 | 杭州泰林生物技术设备有限公司 | 薄膜过滤装置及方法 |
JP2019516326A (ja) * | 2016-05-11 | 2019-06-13 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 無線フレーム内で制御情報を指示するための方法及び装置 |
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JPS6351907A (ja) * | 1986-08-21 | 1988-03-05 | Toshiba Corp | 濾過装置 |
JPH05154356A (ja) * | 1991-12-10 | 1993-06-22 | Sanki Eng Co Ltd | 膜濾過モジュール |
JPH11179353A (ja) * | 1997-12-22 | 1999-07-06 | Matsushita Electric Works Ltd | 浴槽湯浄化装置 |
JP2003265935A (ja) * | 2002-03-15 | 2003-09-24 | Suido Kiko Kaisha Ltd | 膜ろ過モジュールの洗浄方法、膜ろ過装置および薬品洗浄装置 |
JP2005193119A (ja) * | 2004-01-06 | 2005-07-21 | Fuso Kensetsu Kogyo Kk | ろ過膜モジュールの薬品洗浄方法 |
JP2011115794A (ja) * | 2011-02-28 | 2011-06-16 | Maezawa Ind Inc | 濾過装置 |
WO2012043433A1 (ja) * | 2010-09-27 | 2012-04-05 | 住友電気工業株式会社 | 濾過膜の洗浄方法及び膜濾過装置 |
JP2014024031A (ja) * | 2012-07-27 | 2014-02-06 | Japan Organo Co Ltd | 膜ろ過装置 |
-
2013
- 2013-03-22 JP JP2013059471A patent/JP2014184366A/ja active Pending
-
2014
- 2014-01-20 US US14/778,679 patent/US20160045872A1/en not_active Abandoned
- 2014-01-20 CN CN201480017484.9A patent/CN105073234A/zh active Pending
- 2014-01-20 WO PCT/JP2014/050968 patent/WO2014148084A1/ja active Application Filing
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JPS6351907A (ja) * | 1986-08-21 | 1988-03-05 | Toshiba Corp | 濾過装置 |
JPH05154356A (ja) * | 1991-12-10 | 1993-06-22 | Sanki Eng Co Ltd | 膜濾過モジュール |
JPH11179353A (ja) * | 1997-12-22 | 1999-07-06 | Matsushita Electric Works Ltd | 浴槽湯浄化装置 |
JP2003265935A (ja) * | 2002-03-15 | 2003-09-24 | Suido Kiko Kaisha Ltd | 膜ろ過モジュールの洗浄方法、膜ろ過装置および薬品洗浄装置 |
JP2005193119A (ja) * | 2004-01-06 | 2005-07-21 | Fuso Kensetsu Kogyo Kk | ろ過膜モジュールの薬品洗浄方法 |
WO2012043433A1 (ja) * | 2010-09-27 | 2012-04-05 | 住友電気工業株式会社 | 濾過膜の洗浄方法及び膜濾過装置 |
JP2011115794A (ja) * | 2011-02-28 | 2011-06-16 | Maezawa Ind Inc | 濾過装置 |
JP2014024031A (ja) * | 2012-07-27 | 2014-02-06 | Japan Organo Co Ltd | 膜ろ過装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104548937A (zh) * | 2014-10-29 | 2015-04-29 | 杭州泰林生物技术设备有限公司 | 薄膜过滤装置及方法 |
JP2019516326A (ja) * | 2016-05-11 | 2019-06-13 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 無線フレーム内で制御情報を指示するための方法及び装置 |
US11330465B2 (en) | 2016-05-11 | 2022-05-10 | Huawei Technologies Co., Ltd. | Method and apparatus for indicating control information in a wireless frame |
US11743766B2 (en) | 2016-05-11 | 2023-08-29 | Huawei Technologies Co., Ltd. | Method and apparatus for indicating control information in a wireless frame |
Also Published As
Publication number | Publication date |
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CN105073234A (zh) | 2015-11-18 |
US20160045872A1 (en) | 2016-02-18 |
JP2014184366A (ja) | 2014-10-02 |
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