WO2019098813A2 - Appareil de traitement de l'eau et procédé de traitement de l'eau l'utilisant - Google Patents

Appareil de traitement de l'eau et procédé de traitement de l'eau l'utilisant Download PDF

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Publication number
WO2019098813A2
WO2019098813A2 PCT/KR2018/014293 KR2018014293W WO2019098813A2 WO 2019098813 A2 WO2019098813 A2 WO 2019098813A2 KR 2018014293 W KR2018014293 W KR 2018014293W WO 2019098813 A2 WO2019098813 A2 WO 2019098813A2
Authority
WO
WIPO (PCT)
Prior art keywords
hollow fiber
fiber membrane
guide bar
water treatment
membrane module
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.)
Ceased
Application number
PCT/KR2018/014293
Other languages
English (en)
Korean (ko)
Other versions
WO2019098813A3 (fr
Inventor
안형욱
김성민
김경희
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lotte Chemical Corp
Original Assignee
Lotte Chemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lotte Chemical Corp filed Critical Lotte Chemical Corp
Publication of WO2019098813A2 publication Critical patent/WO2019098813A2/fr
Publication of WO2019098813A3 publication Critical patent/WO2019098813A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • B01D63/026—Wafer type modules or flat-surface type modules
    • 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
    • B01D63/08—Flat membrane modules
    • B01D63/082—Flat membrane modules comprising a stack of flat membranes
    • 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
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • 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
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/02—Specific tightening or locking mechanisms
    • B01D2313/025—Specific membrane holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/06—External membrane module supporting or fixing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/21—Specific headers, end caps
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis
    • 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

Definitions

  • the present invention relates to a water treatment apparatus and a water treatment method using the water treatment apparatus.
  • membrane technology has been increasingly applied to ensure water quality stability in water treatment, under-wastewater treatment, and seawater desalination.
  • hollow fiber membranes have a high membrane area per unit volume, can be automatically controlled, and membrane washing is easy.
  • the length of the hollow fiber membrane may gradually contract over time, depending on the environment to which the hollow fiber membrane is applied, which may also vary within a single water treatment apparatus.
  • the water treatment apparatus has a structure in which the slack of the hollow fiber membrane is controlled by the entire cassette (unit), so that it is impossible to maintain proper slack for each hollow fiber membrane module.
  • the differential pressure of the upper part of the hollow fiber membrane module (for example, in the vicinity of the upper header) is higher than that of the lower part, so that the contamination is concentrated and thus the cleaning efficiency is lowered.
  • An object of the present invention is to provide a water treatment apparatus capable of maintaining and controlling proper slack for each hollow fiber membrane module, preventing membrane breakage due to film shrinkage and improving physical cleaning efficiency, and a water treatment method using the same .
  • One aspect of the present invention relates to a water treatment apparatus.
  • the water treatment apparatus includes a frame having a hole through which both ends of the guide bar can be coupled, a guide bar inserted into the hole, guiding the coupling of the hollow fiber membrane module,
  • the hollow fiber membrane module includes an upper header having a plurality of guide bar coupling holes formed therein to adjust the height of the hollow fiber membrane module.
  • the hollow fiber membrane module of claim 1, wherein the hollow fiber membrane module comprises: a hollow fiber membrane sheet having a plurality of hollow fiber membranes stacked in a sheet form; an upper header vertically extending in the longitudinal direction of the hollow fiber membrane sheet, And a lower header disposed below the hollow fiber membrane sheet and collecting the treated water filtered in the hollow fiber membrane.
  • the upper header contains a plurality of hollow fiber membrane sheets, the first hollow fiber membrane sheet is spaced apart from the adjacent second hollow fiber membrane sheet in the thickness direction, A plurality of guide bars coupled to each other to connect the first and second transverse wall portions and both ends of the first transverse wall portion and the second transverse wall portion to each other and to adjust the height of the hollow fiber membrane module,
  • the hollow fiber membrane module includes a first vertical wall portion and a second vertical wall portion. The hollow fiber membrane module is slidably coupled to the guide bar through the guide bar engagement portion.
  • the upper header may be opened at an upper portion of the header.
  • the water treatment apparatus can freely move the first hollow fiber membrane sheet and the second hollow fiber membrane sheet independently in the thickness direction during aeration.
  • the first transverse wall portion and the second transverse wall portion are provided with a pin coupling portion, and the pin passes through the pin coupling portion and the hollow fiber sheet, Can be fixed.
  • a plurality of holes may be formed in the frame so as to adjust the height of the guide bar.
  • the interval (HD) between the first and second transverse wall portions may be about 1.1 to about 2 times the thickness MD of the hollow fiber sheet.
  • the gap between the plurality of guide bar engagement portions may be about 3 mm to about 10 mm.
  • the frame may have a gap between the plurality of holes of about 3 mm to about 10 mm.
  • the water treatment method according to another aspect of the present invention may be a method of water treatment using the water treatment apparatuses of the above-mentioned Embodiments 1 to 10.
  • the present invention provides a water treatment apparatus capable of maintaining and controlling proper slack for each hollow fiber membrane module to prevent film breakage due to membrane shrinkage and to improve physical cleaning efficiency and water treatment method using the same .
  • FIG. 1 is a schematic view of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 2 is a simplified view of a frame of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 3 is a schematic view illustrating a coupling structure of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic view of an upper header of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic view illustrating a coupling structure of an upper header and a hollow fiber membrane sheet in a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic view of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 2 is a view showing a frame of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic view showing a coupling structure of a water treatment apparatus according to the present invention.
  • z denotes the hollow fiber membrane longitudinal direction
  • y denotes the direction perpendicular to the hollow fiber membrane longitudinal direction
  • x denotes the thickness direction of the hollow fiber membrane sheet.
  • a water treatment apparatus includes a frame 100 having a hole 110 to which both ends 200 of a guide bar can be fastened, And a hollow fiber membrane module 300 slidably coupled to the guide bar 200.
  • the hollow fiber membrane module 300 includes a hollow fiber membrane module 300, And a top header 330 having a plurality of guide bar coupling holes 340 for adjusting the height of the guide bar 300.
  • the hollow fiber membrane module 300 is slidably coupled to the guide bar 200 through the guide bar coupling hole 340 formed in the upper header 330 to adjust the hollow fiber membrane slack suitable for each hollow fiber membrane module And saves manpower, time, and cost for slack adjustment, flexibly copes with each hollow fiber membrane module, and secures flexibility of the hollow fiber membrane to more effectively prevent contamination of the hollow fiber membrane have.
  • the frame 100 is only partially shown in Figs.
  • the frame 100 may have a hole 110 through which both ends of the guide bar 200 may be coupled and may support the weight of the guide bar 200 coupled with the hollow fiber membrane module 300, , Materials and the like are not particularly limited and different forms can be implemented depending on the purpose, structure and environment of the water treatment apparatus.
  • a plurality of holes 110 may be formed in the frame 100 to adjust the height of the guide bar 200.
  • the distance between the holes of the plurality of holes may be about 3 mm to about 10 mm, for example, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.
  • proper slack can be maintained for each hollow fiber membrane module together with the guide bar coupling member 340 described later, thereby effectively preventing the membrane contamination of the hollow fiber membrane.
  • the guide bar 200 may serve to couple and fix the frame 100 and the hollow fiber membrane module 300 together.
  • Both ends of the guide bar 200 may be inserted into and fixed to the holes 110 of the frame 100 and may be slidably engaged with the hollow fiber membrane module 300 Bar coupling portion 340) to fix and support the hollow fiber membrane module 300.
  • each hollow fiber membrane module has an advantage that appropriate slack can be maintained.
  • the material, shape, and the like are not particularly limited as long as the guide bar 200 can support the hollow fiber membrane module 300.
  • the number of the guide bars 200 can be appropriately adjusted according to the purpose, the use environment, and the like of the water treatment apparatus.
  • rotation fluidity of the hollow fiber membrane module upper header 330 can be improved, and accumulation of sludge on the upper part of the hollow fiber membrane can be prevented more effectively. It is advantageous that the hollow fiber membrane module 300 is stably fixed.
  • the hollow fiber membrane module 300 includes a hollow fiber membrane sheet 310 in which a plurality of hollow fiber membranes are stacked in a sheet form, an upper header 310 extending in a direction perpendicular to the longitudinal direction of the hollow fiber membrane sheet 310, And a lower header 350 disposed below the hollow fiber membrane sheet 310 and collecting the treated water filtered in the hollow fiber membrane.
  • the hollow fiber membrane sheet 310 may be a unit sheet having a plurality of hollow fiber membranes arranged in a sheet form, or a plurality of the unit sheets may be laminated.
  • the hollow fiber membrane sheet may be arranged in plural along the longitudinal direction and the width (thickness) direction of the header. 1 illustrates the arrangement of four hollow fiber membrane sheets in the longitudinal direction, but the present invention is not limited thereto, and the number of the hollow fiber membrane sheets can be appropriately adjusted depending on the purpose and environment of the water treatment apparatus.
  • the hollow fiber membrane sheet may be formed by heating and pressing a plurality of hollow fiber membranes using a thermoplastic resin.
  • the thermoplastic resin that can be applied in the present invention can be applied to any resin that can be heated and pressed.
  • ethylene vinyl acetate, polyolefin, polystyrene, polycarbonate, polyvinyl chloride, polyamide and the like may be used, but are not limited thereto.
  • the upper header 330 can open the upper portion of the header, so that not only the flow of the water to be treated can be formed in the upper header 330 but also the diffuse bubbles can be moved into the upper header 330 Thus, accumulation of sludge on the upper portion of the hollow fiber membrane can be effectively prevented.
  • FIG. 4 is a schematic view of an upper header of a water treatment apparatus according to an embodiment of the present invention.
  • the upper header 330 includes a first transverse wall portion 331, a second transverse wall portion 333, and a first transverse wall portion 333 formed in the longitudinal direction of the guide bar 200 and facing each other, A first vertical wall portion 335 and a second vertical wall portion 332 having a plurality of guide bar coupling holes 340 for connecting the both ends of the second vertical wall portion 331 and the second horizontal wall portion 333 and adjusting the height of the hollow fiber membrane module, 337, and the hollow fiber membrane module 300 may be slidably coupled to the guide bar through the guide bar coupling hole 340. (See FIG. 3)
  • the upper header 330 may accommodate a plurality of hollow fiber membrane sheets 310, and the first hollow fiber membrane sheet may be spaced from the neighboring second hollow fiber membrane sheet.
  • the hollow fiber membrane sheet can be arranged in plural along the longitudinal direction and the width direction of the header, and when the hollow fiber membrane sheet is arranged in the width direction of the header, a gap is formed between the hollow fiber membrane sheets,
  • the first hollow fiber membrane sheet and the second hollow fiber membrane sheet can freely move independently in the thickness direction. For example, it is possible to freely reciprocate in the thickness direction. In this case, accumulation of the sludge can be more effectively prevented by the flow of the reciprocating motion and the impact.
  • the hollow fiber membrane module 300 is slidably coupled to the guide bar 200 through the guide bar coupling holes 340 formed in the upper header 330, It is possible to reduce the manpower, time, and cost for slack adjustment, to cope flexibly with each hollow fiber membrane module, to secure the flexibility of the hollow fiber membrane and to more effectively prevent the contamination of the hollow fiber membrane There are advantages.
  • the plurality of guide bar engaging portions may be formed to have a height (height) between the engaging portions of the guide bar engaging portions 340, For example, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.
  • FIG. 5 is a schematic view illustrating a coupling structure of an upper header and a hollow fiber membrane sheet in a water treatment apparatus according to an embodiment of the present invention.
  • the first and second transverse wall portions 331 and 333 are each provided with a pin engagement portion 345, And may be fixed to the upper header 330 through the pin coupling portion 345 and the hollow fiber membrane sheet.
  • the membrane can be freely moved in the thickness direction of the hollow fiber membrane sheet (for example, free reciprocating motion) The accumulation of sludge in the upper portion of the hollow fiber membrane can be prevented more effectively.
  • the interval (HD) between the first and second transverse wall portions may be about 1.1 to about 2 times, for example 1.1, 1.2, or 1.3 times the thickness MD of the hollow fiber sheet , 1.4 times, 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times, and 2 times.
  • an appropriate fluidity is given to the hollow fiber membrane, and a stable water treatment apparatus can be operated.
  • the lower header 350 can collect the treated water filtered in the hollow fiber membrane, and the collected treated water is discharged through the one end or both ends of the lower header 350 through a treated water discharge pipe (not shown) .
  • the upper header 330 does not collect the treated water but minimizes the sludge accumulation of the hollow fiber membrane and collects the treated water only in the lower header 350, An improved water treatment apparatus can be provided.
  • the water treatment method according to another aspect of the present invention may be a method of water treatment using the above water treatment apparatus.
  • first lateral wall portion 333 second lateral wall portion
  • first vertical wall portion 337 second vertical wall portion
  • pin 350 bottom header

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Un appareil de traitement de l'eau de la présente invention comprend : des cadres ayant chacun un trou à travers lequel les deux extrémités d'une barre de guidage peuvent être fixées ; des barres de guidage insérées dans les trous et guidant le couplage d'un module de membrane à fibres creuses ; et le module de membrane à fibres creuses couplé coulissant aux barres de guidage, le module de membrane à fibres creuses comprenant une colonne supérieure constituée d'une pluralité de trous de couplage de barre de guidage de façon à ajuster la hauteur du module de membrane à fibres creuses.
PCT/KR2018/014293 2017-11-20 2018-11-20 Appareil de traitement de l'eau et procédé de traitement de l'eau l'utilisant Ceased WO2019098813A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170154749A KR102505035B1 (ko) 2017-11-20 2017-11-20 수처리 장치 및 이를 이용한 수처리 방법
KR10-2017-0154749 2017-11-20

Publications (2)

Publication Number Publication Date
WO2019098813A2 true WO2019098813A2 (fr) 2019-05-23
WO2019098813A3 WO2019098813A3 (fr) 2019-07-11

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PCT/KR2018/014293 Ceased WO2019098813A2 (fr) 2017-11-20 2018-11-20 Appareil de traitement de l'eau et procédé de traitement de l'eau l'utilisant

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KR (2) KR102505035B1 (fr)
WO (1) WO2019098813A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100812187B1 (ko) * 2007-02-12 2008-03-12 주식회사 케이엠에스 카트리지형 중공사 막 모듈
JP2008237960A (ja) * 2007-03-26 2008-10-09 Toray Ind Inc 膜エレメントおよび膜分離装置
KR101818415B1 (ko) * 2011-03-31 2018-01-15 코오롱인더스트리 주식회사 중공사막 모듈 및 이것이 장착된 여과 장치
KR101464831B1 (ko) * 2012-12-04 2014-11-25 코오롱인더스트리 주식회사 여과장치
KR101610999B1 (ko) * 2013-04-30 2016-04-08 롯데케미칼 주식회사 중공사막 모듈 어셈블리

Also Published As

Publication number Publication date
KR20230023675A (ko) 2023-02-17
KR20190057607A (ko) 2019-05-29
WO2019098813A3 (fr) 2019-07-11
KR102505035B1 (ko) 2023-02-28

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