WO2012026721A2 - 침지형 중공사막 모듈 - Google Patents
침지형 중공사막 모듈 Download PDFInfo
- Publication number
- WO2012026721A2 WO2012026721A2 PCT/KR2011/006180 KR2011006180W WO2012026721A2 WO 2012026721 A2 WO2012026721 A2 WO 2012026721A2 KR 2011006180 W KR2011006180 W KR 2011006180W WO 2012026721 A2 WO2012026721 A2 WO 2012026721A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow fiber
- fiber membrane
- membrane module
- module
- immersion
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 65
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 60
- 238000007654 immersion Methods 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 6
- 238000005192 partition Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 9
- 238000011282 treatment Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000020183 skimmed milk Nutrition 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/23—Specific membrane protectors, e.g. sleeves or screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/26—Specific gas distributors or gas intakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/06—Submerged-type; Immersion type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/10—Cross-flow filtration
-
- 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 an immersion hollow fiber membrane module, and more particularly, to an immersion hollow fiber membrane module used for filtration of sewage treatment plants and water treatment plants.
- Hollow fiber membrane module is a filtration treatment device that uses hollow fiber, a thin fiber with a large number of small pores on the surface and empty space in the middle, and is mixed with various materials. It is an apparatus that effectively removes material larger than pore size from the component liquid and selectively passes only a specific material smaller than pore size.
- Such hollow fiber membrane modules have been widely used in the field of ultrafiltration and precision filtration such as sterile water and drinking water production, and have recently been applied to secondary and tertiary treatments in sewage treatment plants and solid-liquid separation in septic tanks. .
- the hollow fiber membrane module used for the sewage treatment is divided into an external circulation method and a module immersion method according to the method in which the hollow fiber membrane is applied to the aeration tank.
- An object of the present invention is to provide an immersion type hollow fiber membrane module that can increase the operating efficiency of the hollow fiber membrane module, the high concentration of raw water around the hollow fiber membrane during the backwash process can easily flow out of the module.
- An upper header and a lower header positioned in parallel at predetermined intervals
- a hollow fiber membrane arranged vertically between the upper header and the lower header
- an immersion type hollow fiber membrane module comprising a diaphragm having an opening in the form of an inclined slit.
- the immersion hollow fiber membrane module since a small amount of air forms an upward flow around the separator, cross-flow filtration is possible, thereby reducing contamination of the separator due to long-term operation. As a result, the number of chemical or physical cleaning cycles is reduced, as well as the life of the separator can be extended, thereby reducing maintenance and repair costs of the purified or wastewater treatment plant.
- FIG. 1 is a schematic perspective view of an immersion hollow fiber membrane module according to an embodiment of the present invention.
- FIG. 2A is a partially enlarged view of the front surface of the opening 41
- FIG. 2B is a partially enlarged view of the opening 41 when the module is cut in the longitudinal direction.
- the immersed hollow fiber membrane module of the present invention includes a diaphragm having an inclined slit-shaped opening, thereby increasing the operating flow of the hollow fiber membrane module by accelerating the rising water flow, and high concentration of raw water around the hollow fiber membrane during the backwashing process. It can easily leak out of the module.
- FIG 1 schematically shows the external appearance of the immersion hollow fiber membrane module according to an embodiment of the present invention.
- the immersed hollow fiber membrane module proposed in the present invention is a hollow between the lower header 20 for injecting air flowing into the hollow fiber membrane 30 and the upper header 10 connected to the hollow fiber membrane 30
- the diaphragm 30 is mounted in a vertical direction and has an inclined slit-shaped opening 41 surrounding the hollow fiber membrane 30 between the upper header 10 and the lower header 20 of the hollow fiber membrane ( 40) is mounted.
- the diaphragm 40 has an inclined slit-shaped opening 41 so that the rising water generated in the module during the filtration process does not spread to the outside of the module but only accelerates the rising water because the raw water from the outside of the module flows into the module.
- the high concentration of raw water around the hollow fiber membranes easily flows out of the module along with the downdraft generated inside the module during the backwash process.
- the spacing of the slits is preferably 0.1 cm to 30 cm, but is not necessarily limited thereto.
- FIG. 2 is a partially enlarged view of an inclined slit-shaped opening 41 formed in the diaphragm of the immersion hollow fiber membrane module of FIG. 1, and FIG. 2A is a partially enlarged view of the front of the opening 41. 2B is a partially enlarged view of the opening 41 when the module is cut in the longitudinal direction.
- the diaphragm may include a large upper opening part 50 at the upper part. As such, when the large upper opening part 50 is formed, the air injected from the lower part easily escapes from the upper part to the outside, and thus the air flow control is performed. It has the advantage of being easy.
- the hollow fiber membrane 30 is preferably an average distance between the fibers of 0.01 mm to 50 mm, but is not necessarily limited thereto.
- the hollow fiber membranes should be arranged as densely as possible, but if the gap between the membranes is too narrowed to 0.01 mm or less, the intermembrane blockage is likely to occur because the flow of raw water and air is difficult between the membranes.
- the membrane filling density of the module is lowered, thereby degrading the water treatment capacity.
- An air injection unit (not shown) is formed in the lower head 20, and a plurality of through holes may be formed in the air injection unit to control the air injection so as to equalize the amount of air injected.
- An immersion type hollow fiber membrane module of the same type as in Preparation Example 1 was prepared except that the diaphragm was provided with a slit-shaped opening perpendicular to the longitudinal direction of the hollow fiber membrane.
- skim milk powder proteins in skim milk powder exist as aggregates of protein molecules and protein molecules in an aqueous solution, It can be adsorbed by hydrophobic bonds, which can cause membrane blockage), and the water permeation rate is periodically measured while operating at a suction pressure of 380 mmHg by mounting an immersion hollow fiber membrane module, and is shown in Table 1 below.
- the immersion hollow fiber membrane module manufactured in Preparation Example 1 has a better permeability than the immersion hollow fiber membrane module manufactured in Comparative Preparation Example 1 due to the slit-shaped openings inclined at 45 degrees in the longitudinal direction of the hollow fiber membrane. It can be seen that the decrease is less and the pollution resistance is improved.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
운전 시간 | |||||||||
0 hr | 0.5 hr | 1 hr | 1.5 hr | 2 hr | 4 hr | 6 hr | 8 hr | ||
제조예1 | 투수량 (LMH) | 312 | 215 | 165 | 153 | 140 | 146 | 153 | 143 |
감소율 (%) | 100 | 69 | 53 | 49 | 45 | 47 | 49 | 46 | |
비교제조예1 | 투수량 (LMH) | 323 | 230 | 150 | 122 | 109 | 86 | 75 | 81 |
감소율 (%) | 100 | 71 | 46 | 38 | 34 | 27 | 23 | 25 |
Claims (6)
- 소정 간격으로 평행하게 위치한 상부 헤더 및 하부 헤더;상기 상부 헤더와 하부 헤더 사이에 수직방향으로 배열되는 중공사막; 및상기 중공사막을 감싸도록 설치되고, 기울어진 슬릿 형태의 개구부를 구비한 격막을 포함하는 것을 특징으로 하는 침지형 중공사막 모듈.
- 제 1항에 있어서, 상기 개구부의 슬릿의 간격은 0.1 cm 내지 30 cm인 것을 특징으로 하는 침지형 중공사막 모듈.
- 제 1항에 있어서, 상기 격막은 상부에 상부개구부를 추가로 포함하는 것을 특징으로 하는 침지형 중공사막 모듈.
- 제 1항에 있어서, 상기 중공사막은 섬유간의 평균 거리가 0.01 mm 내지 50 mm인 것을 특징으로 하는 침지형 중공사막 모듈.
- 제 1항에 있어서, 상기 모듈 내부에 형성된 상향수류에 의해 크로스-플로우(cross-flow) 가 형성되는 것을 특징으로 하는 침지형 중공사막 모듈.
- 제 1항에 있어서, 상기 하부 헤드는 공기 주입부를 포함하는 것을 특징으로 하는 침지형 중공사막 모듈.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011294035A AU2011294035B2 (en) | 2010-08-23 | 2011-08-22 | Submerged hollow fiber membrane module |
CA2808831A CA2808831C (en) | 2010-08-23 | 2011-08-22 | Submerged hollow fiber membrane module having partition membrane with slanted openings |
US13/818,343 US9561472B2 (en) | 2010-08-23 | 2011-08-22 | Submerged hollow fiber membrane module |
JP2013525819A JP5481603B2 (ja) | 2010-08-23 | 2011-08-22 | 浸漬型中空糸膜モジュール |
CN201180040677.2A CN103079684B (zh) | 2010-08-23 | 2011-08-22 | 浸入式中空纤维膜组件 |
EP11820148.2A EP2609991A4 (en) | 2010-08-23 | 2011-08-22 | SUBMERGED HOLLOW FIBER MEMBRANE MODULE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100081589A KR101231295B1 (ko) | 2010-08-23 | 2010-08-23 | 침지형 중공사막 모듈 |
KR10-2010-0081589 | 2010-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012026721A2 true WO2012026721A2 (ko) | 2012-03-01 |
WO2012026721A3 WO2012026721A3 (ko) | 2012-06-28 |
Family
ID=45723909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/006180 WO2012026721A2 (ko) | 2010-08-23 | 2011-08-22 | 침지형 중공사막 모듈 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9561472B2 (ko) |
EP (1) | EP2609991A4 (ko) |
JP (1) | JP5481603B2 (ko) |
KR (1) | KR101231295B1 (ko) |
CN (1) | CN103079684B (ko) |
AU (1) | AU2011294035B2 (ko) |
CA (1) | CA2808831C (ko) |
WO (1) | WO2012026721A2 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101716826B1 (ko) * | 2015-08-11 | 2017-03-15 | 연세대학교 원주산학협력단 | 중공사막 모듈 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037478A1 (de) * | 1970-07-29 | 1972-02-03 | Schaubstahl Werke, 5910 Kreuztal | Schhtzbruckenlochungen aufweisendes Brunnenrohr |
US4929354A (en) * | 1982-05-28 | 1990-05-29 | Cuno, Incorporated | Filter element having microporous membrane |
JPH09220444A (ja) * | 1996-02-15 | 1997-08-26 | Kanegafuchi Chem Ind Co Ltd | 中空糸ろ過モジュール |
US5683577A (en) * | 1996-05-22 | 1997-11-04 | Nurse, Jr.; Harry L. | Filter device for wastewater treatment system |
TWI222895B (en) | 1998-09-25 | 2004-11-01 | Usf Filtration & Separations | Apparatus and method for cleaning membrane filtration modules |
US6488848B1 (en) * | 2000-04-24 | 2002-12-03 | Vortex International, Llc | Cleanable filter with ported cylinder adjacent screen |
KR100733529B1 (ko) * | 2003-06-17 | 2007-06-29 | 아사히 가세이 케미칼즈 가부시키가이샤 | 막 카트리지, 막 분리 장치 및 막 분리 방법 |
US7673756B2 (en) * | 2005-06-29 | 2010-03-09 | Selecto, Inc. | Modular fluid purification system and components thereof |
KR20050056293A (ko) | 2003-12-10 | 2005-06-16 | 주식회사 코오롱 | 침지형 중공사막 모듈 |
EP1819426A4 (en) * | 2004-11-02 | 2009-08-12 | Siemens Water Tech Corp | CROSS POWER-IMMERSION FILTRATION |
US20070163942A1 (en) * | 2006-01-19 | 2007-07-19 | Toray Industries, Inc. | Hollow fiber membrane module |
CA2663082A1 (en) * | 2006-09-19 | 2008-03-27 | Toray Industries, Inc. | Hollow fiber membrane module |
AU2009264771A1 (en) | 2008-07-01 | 2010-01-07 | Toray Industries, Inc. | Submerged hollow fiber membrane module |
-
2010
- 2010-08-23 KR KR1020100081589A patent/KR101231295B1/ko active IP Right Grant
-
2011
- 2011-08-22 EP EP11820148.2A patent/EP2609991A4/en not_active Withdrawn
- 2011-08-22 JP JP2013525819A patent/JP5481603B2/ja active Active
- 2011-08-22 AU AU2011294035A patent/AU2011294035B2/en active Active
- 2011-08-22 US US13/818,343 patent/US9561472B2/en active Active
- 2011-08-22 WO PCT/KR2011/006180 patent/WO2012026721A2/ko active Application Filing
- 2011-08-22 CN CN201180040677.2A patent/CN103079684B/zh active Active
- 2011-08-22 CA CA2808831A patent/CA2808831C/en active Active
Non-Patent Citations (2)
Title |
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None |
See also references of EP2609991A4 |
Also Published As
Publication number | Publication date |
---|---|
CA2808831C (en) | 2017-09-19 |
AU2011294035A1 (en) | 2013-03-14 |
KR20120018627A (ko) | 2012-03-05 |
AU2011294035B2 (en) | 2014-09-11 |
WO2012026721A3 (ko) | 2012-06-28 |
EP2609991A2 (en) | 2013-07-03 |
JP2013539412A (ja) | 2013-10-24 |
CN103079684B (zh) | 2015-09-09 |
KR101231295B1 (ko) | 2013-02-07 |
CN103079684A (zh) | 2013-05-01 |
US20130199994A1 (en) | 2013-08-08 |
CA2808831A1 (en) | 2012-03-01 |
US9561472B2 (en) | 2017-02-07 |
EP2609991A4 (en) | 2016-06-01 |
JP5481603B2 (ja) | 2014-04-23 |
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