WO2019103479A1 - Appareil de traitement d'eau - Google Patents

Appareil de traitement d'eau Download PDF

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Publication number
WO2019103479A1
WO2019103479A1 PCT/KR2018/014426 KR2018014426W WO2019103479A1 WO 2019103479 A1 WO2019103479 A1 WO 2019103479A1 KR 2018014426 W KR2018014426 W KR 2018014426W WO 2019103479 A1 WO2019103479 A1 WO 2019103479A1
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WO
WIPO (PCT)
Prior art keywords
air
water treatment
treatment apparatus
unit membrane
module
Prior art date
Application number
PCT/KR2018/014426
Other languages
English (en)
Korean (ko)
Inventor
차서은
구영림
민규홍
Original Assignee
롯데케미칼 주식회사
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 롯데케미칼 주식회사 filed Critical 롯데케미칼 주식회사
Publication of WO2019103479A1 publication Critical patent/WO2019103479A1/fr

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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
    • 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
    • B01D63/16—Rotary, reciprocated or vibrated modules
    • 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
    • B01D69/06—Flat membranes
    • 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
    • B01D2313/06—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
    • B01D2313/20—Specific housing
    • B01D2313/203—Open housings
    • B01D2313/2031—Frame or cage-like structures
    • 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
    • B01D2321/18—Use of gases
    • B01D2321/185—Aeration
    • 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
    • C02F2201/007—Modular design

Definitions

  • the present invention relates to a water treatment apparatus.
  • Conventional submerged separator cassettes / units are generally constructed such that the hollow fiber membranes or flat membranes are densely packed in a square bundle so that the modules are fixed to a rectangular parallelepiped frame arranged in a row or in multiple stages.
  • the submerged membrane cassette generates air bubbles from air pipes arranged in a row along the bottom of the module to minimize contamination of the membrane.
  • the piping for supplying gas to the air diffuser is usually positioned on one side of the cassette frame, The amount of gas supplied is not uniform depending on the position of the engine. As a result, some acid organs are clogged with sludge, and the membrane contamination in the module at the corresponding location rapidly proceeds.
  • Another object of the present invention is to provide a water treatment apparatus in which the water treatment efficiency is improved by preventing the sludge from being deposited in the filter substrate and the air diffuser.
  • One aspect of the present invention relates to a water treatment apparatus.
  • the water treatment apparatus comprises a module assembly in which a plurality of unit membrane modules are radially arranged, a plurality of air diffusers arranged at the lower end of the module assembly, arranged radially, and a plurality of radially arranged mountains And an air supply pipe communicating with the center of the engine and supplying air.
  • unit membrane module according to 1 above, wherein the unit membrane module comprises: a filtration substrate for filtering the WTBT; an upper and a lower header formed at upper and lower portions of the filtration substrate for collecting the filtrate; A first unit membrane module and a second unit membrane module adjacent to the first unit membrane module are radially arranged so that the water pipe is positioned at the center.
  • the filter material may be a hollow fiber membrane.
  • the filter material may be a flat film.
  • the plurality of air diffusers may be rotatable about the air supply pipe formed at the center.
  • the diffuser includes a plurality of diffuser holes formed along the longitudinal direction, and the plurality of diffuser holes may be larger in diameter as the diffuser is closer to the air supply pipe.
  • water treatment apparatus according to any one of the above 1 to 8, wherein the water treatment apparatus may include about 4 to about 24 diffusers.
  • a width of the unit membrane module increases as the distance from the air supply pipe increases, and a distance (R) at the center of the air supply pipe (O) May range from about 1: 0.15 to about 1: 0.80.
  • FIG. 1 is a perspective view of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 2 is a simplified vertical cross-sectional view of a water treatment apparatus according to an embodiment of the present invention.
  • FIG 3 is a simplified horizontal cross-sectional view of a water treatment apparatus according to one embodiment of the present invention.
  • portion A in a vertical section according to one embodiment of the present invention.
  • FIG. 5 is a simplified horizontal cross-sectional view of a water treatment apparatus according to another embodiment of the present invention.
  • 'X to Y' representing the range means 'X to Y or less' or 'X to Y'.
  • the unit membrane module may include a filter substrate, upper and lower headers, and a water pipe, and may also refer to including a support.
  • FIG. 1 is a perspective view of a water treatment apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic vertical sectional view of a water treatment apparatus according to an embodiment of the present invention.
  • 1 is a horizontal sectional view of a water treatment apparatus according to a specific embodiment.
  • the water treatment apparatus 1000 includes a module assembly 300 in which a plurality of unit membrane modules 310 are arranged in a radial fashion, a plurality of unit membrane modules 310 formed in the lower end of the module assembly 300, And a plurality of air diffusers 150 and an air supply pipe 100 communicating with the centers of the plurality of air diffusers 150 radially arranged to supply air.
  • the water treatment apparatus 1000 includes the air diffuser 100 disposed at the center and radially disposed in the center of the water treatment apparatus 1000 so that air can be uniformly supplied to the unit membrane modules 310, And ultimately improve the efficiency and life span of the water treatment apparatus 1000.
  • the unit membrane module 310 includes a filtration substrate 315 for filtrating water to be treated, upper and lower headers 311 and 313 formed at upper and lower portions of the filtration substrate 315 to collect filtrate, And a water pipe (319) vertically formed at one end of the lower header (311, 313) and connecting between the upper and lower headers (311, 313), wherein the first unit membrane module And may be radially arranged so that the module and the water pipe are centrally located.
  • the filter base 315 may be arranged in a predetermined direction at a predetermined interval to form a bundle shape.
  • the material and form of the filtration substrate 315 are not limited insofar as the filter substrate 315 is capable of filtering the water to be treated.
  • the filtration substrate 315 may be formed of a material selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyether imide, cellulose, cellulose acetate, polyvinyl alcohol, polyamide, polyethylene, polyfluorinated ethylene, polyvinylidene fluoride, Nitrile, polypropylene, polymethyl methacrylate, polytetrafluoroethylene, or polyether ketone.
  • it may include at least one of polyvinylidene fluoride (PVDF), polypropylene (PP), and polytetrafluoroethylene (PTFE).
  • PVDF polyvinylidene fluoride
  • PP polypropylene
  • PTFE polytetraflu
  • the upper header 311 and the lower header 313 can collect the filtered water treated by the filter substrate 315.
  • the upper header 311 and the lower header 313 may have flow passages therein and the lower header 313 may be connected to the upper header 311 or the collecting part 350 through the water pipe 319
  • the filtrate can be supplied. That is, the lower header 313 may communicate with the upper header 311 through the water pipe 319 or may communicate with the water collecting unit 350 through the water pipe 319.
  • the upper header 311 and the lower header 313 are not limited as long as they have predetermined mechanical strength and durability.
  • the upper header 311 and lower header 313 include polyvinyl chloride, polyolefin, polycarbonate, polysulfone, acrylic resin, ABS (acrylonitrile butadiene styrene) resin, modified PPE can do.
  • the water pipe 319 can function to communicate the lower header 313 with the upper header 311 and can function as a frame for maintaining the structure of the unit membrane module 310.
  • the shape of the water pipe 319 is not particularly limited.
  • the water treatment apparatus 1000 may include, for example, ⁇ about 8 to about 24, such as 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, or 24 unit membrane modules 310. In this case, the water treatment apparatus 1000 is excellent in the balance of washing efficiency due to dense and acidic groups.
  • the unit membrane module 310 may further include a support member 317 disposed between the upper header 311 and the lower header 313 and supporting the unit membrane module 310.
  • the support member 317 may function to fix the upper header 311, the lower header 313, and the plurality of filter substrates 315.
  • the support member 317 may be in the form of a rod and may be in the form of being fitted to the upper header 311 and the lower header 313 respectively but not necessarily limited thereto, Various other variations are possible as long as the functions are performed.
  • the coupling between the support member 317 and the upper header 311 and the lower header 313 can be modified in various ways.
  • the module assembly 300 may further include a support member 330 for supporting the unit membrane module 310.
  • the support base 330 serves to maintain the module assembly 300 at a certain distance from the air diffusing pipe 150.
  • the distance may be from about 1 cm to about 50 cm, such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 , 18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42 , 43, 44, 45, 46, 47, 48, 49 or 50 cm, specifically ⁇ about 1 cm to ⁇ about 15 cm.
  • the supporter 330 may be spaced from the air diffusing pipe 150 by the engagement protrusion 110 formed on the air supply pipe 100, and may be rotatable.
  • the support member 330 may be formed of a material having a strength enough to support the unit membrane module 310 of the module assembly 300 and may be formed in a shape corresponding to the unit membrane module 310 .
  • the supporting member 330 may further include a fixing member (not shown) for fixing the unit membrane module 310.
  • the unit membrane module 310 may be configured to fix the unit membrane module 310 to the supporting member 330 And is not particularly limited.
  • the water treatment apparatus 1000 is connected to the upper header 311 of each unit membrane module 310 and is formed in the shape of a tube surrounding the air supply pipe 100, And a water collecting unit 350 for collecting the filtered treated water.
  • a water collecting unit 350 for collecting the filtered treated water.
  • air may be supplied from the upper portion of the air supply pipe 100 or from the lower portion thereof. For example, when air is supplied from the top of the air supply pipe 100 (though not limited to the form of FIG. 2), the air passing through the center of the module assembly 300 and vertically communicating with the air diffusing pipe 150 .
  • the air diffusing pipe 150 is radially communicated with the lower portion of the air supply pipe 100 and is formed in the unit membrane module 310 to physically clean the filter medium 315.
  • the air diffuser 150 may include a plurality of air diffusing holes formed along the length direction, and the diameter of the plurality of air diffusing holes may be larger toward the air supplying tube 100.
  • the air diffusers 150 may be installed in the water treatment apparatus 1000 in a range of about 4 to about 16, such as 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16 may be provided. In this case, the balance between the acid efficiency and the energy consumption of the water treatment apparatus 1000 is excellent.
  • the air supply pipe 100 may supply air to the air diffusing pipe 150 for aeration.
  • the air supply pipe 100 may be formed in a cylindrical shape.
  • the plurality of air diffusers 150 may be rotatable about the air supply pipe 100 formed at the center.
  • the module assembly 300 may be rotatable about the air supply pipe 100 formed at the center. This has the advantage that the sludge is prevented from being deposited in the filtration substrate and the organs, and the flow and movement of the air generated in the organs are formed and the sludge removal efficiency of the filtration substrate can be further improved.
  • FIG. 5 is a simplified horizontal cross-sectional view of a water treatment apparatus according to another embodiment of the present invention.
  • the width of the unit membrane module 310 may increase as the distance from the air supply pipe 100 increases. 5, when the width of the unit membrane module 310 is increased as the distance from the air supply pipe 100 located at the center O increases, the degree of integration of the unit membrane module 310 is high and the water treatment efficiency is improved There are advantages.
  • the width increasing rate of the unit membrane module 310 may be appropriately varied according to the number of the unit membrane modules 310 included in the module assembly 300.
  • the width of the unit membrane module 310 may be proportional to the distance from the center O of the water treatment apparatus 1000 to a specific ratio.
  • the ratio of the distance R of the center of gravity O of the water treatment apparatus 1000 to the width MD may be about 1: 0.15 to about 1: 0.80, for example, 1: 0.16, 1: 0.29, 1: 0.28, 1: 0.23, 1: 0.24, 1: 0.25, 1: 0.26, 1: 0.27, 1: 0.28, 1: 0.29, 1: 0.31, 1: 0.31, 1: 0.32, 1: 0.33,1: 0.34,1: 0.35,1: 0.36,1: 0.37,1: 0.38,1: 0.39,1: 0.40,1: 0.41,1: 1: 0.54, 1: 0.52, 1: 0.53, 1: 0.54, 1: 0.45, 1: 0.61, 1: 0.62, 1: 0.63, 1: 0.64, 1: 0.65, 1: 0.66, 1: 0.66, 1: 0.55, 1: 0.56, 1: 0.57, 1: 0.67, 1: 0.78, 1: 0.77, 1: 0.78, 1: 0.79, 1: 0.
  • air supply unit 110 100: air supply unit 110:
  • unit membrane module 311 upper header

Abstract

Un appareil de traitement d'eau selon la présente invention comprend : un ensemble module dans lequel une pluralité de modules membranaires unitaires sont agencés radialement; une pluralité de tubes de diffusion d'air formés au niveau de l'extrémité inférieure de l'ensemble module et agencés radialement sur celui-ci; et un tube d'alimentation en air communiquant avec le centre de la pluralité de tubes de diffusion d'air agencés radialement de façon à fournir de l'air à celui-ci.
PCT/KR2018/014426 2017-11-23 2018-11-22 Appareil de traitement d'eau WO2019103479A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0157358 2017-11-23
KR1020170157358A KR20190059596A (ko) 2017-11-23 2017-11-23 수처리 장치

Publications (1)

Publication Number Publication Date
WO2019103479A1 true WO2019103479A1 (fr) 2019-05-31

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PCT/KR2018/014426 WO2019103479A1 (fr) 2017-11-23 2018-11-22 Appareil de traitement d'eau

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WO (1) WO2019103479A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3376733B2 (ja) * 1994-11-30 2003-02-10 日立プラント建設株式会社 中空糸型膜モジュール
JP2005138103A (ja) * 2003-10-16 2005-06-02 Toray Ind Inc 分離膜モジュールおよび膜分離装置
JP2006116495A (ja) * 2004-10-25 2006-05-11 Sumitomo Electric Fine Polymer Inc 濾過装置
KR20080001362U (ko) * 2006-11-22 2008-05-27 주점섭 양어장 및 폐수처리장의 수질 정화장치
KR20160111892A (ko) * 2016-09-19 2016-09-27 롯데케미칼 주식회사 나선형 산기 장치 및 이를 포함하는 중공사막 모듈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3376733B2 (ja) * 1994-11-30 2003-02-10 日立プラント建設株式会社 中空糸型膜モジュール
JP2005138103A (ja) * 2003-10-16 2005-06-02 Toray Ind Inc 分離膜モジュールおよび膜分離装置
JP2006116495A (ja) * 2004-10-25 2006-05-11 Sumitomo Electric Fine Polymer Inc 濾過装置
KR20080001362U (ko) * 2006-11-22 2008-05-27 주점섭 양어장 및 폐수처리장의 수질 정화장치
KR20160111892A (ko) * 2016-09-19 2016-09-27 롯데케미칼 주식회사 나선형 산기 장치 및 이를 포함하는 중공사막 모듈

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KR20190059596A (ko) 2019-05-31

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