WO1997010047A1 - Method and device for removing iron from aqueous liquids - Google Patents
Method and device for removing iron from aqueous liquids Download PDFInfo
- Publication number
- WO1997010047A1 WO1997010047A1 PCT/US1996/014706 US9614706W WO9710047A1 WO 1997010047 A1 WO1997010047 A1 WO 1997010047A1 US 9614706 W US9614706 W US 9614706W WO 9710047 A1 WO9710047 A1 WO 9710047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- medium
- liquid
- filter medium
- chamber
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 47
- 229910052742 iron Inorganic materials 0.000 title abstract description 23
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 33
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 239000013618 particulate matter Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000011148 porous material Substances 0.000 claims description 24
- 239000007787 solid Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 21
- 239000000706 filtrate Substances 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 abstract description 21
- 239000007789 gas Substances 0.000 description 23
- 239000000356 contaminant Substances 0.000 description 21
- -1 Polypropylene Polymers 0.000 description 11
- 238000005192 partition Methods 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- 239000004743 Polypropylene Substances 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 239000004760 aramid Substances 0.000 description 9
- 229920003235 aromatic polyamide Polymers 0.000 description 9
- 239000012528 membrane Substances 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 238000009736 wetting Methods 0.000 description 8
- 238000000746 purification Methods 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 238000005342 ion exchange Methods 0.000 description 5
- 239000003456 ion exchange resin Substances 0.000 description 5
- 229920003303 ion-exchange polymer Polymers 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000012508 resin bead Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 206010073310 Occupational exposures Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010857 liquid radioactive waste Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 231100000675 occupational exposure Toxicity 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000002900 solid radioactive waste Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- 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
- B01D63/06—Tubular 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
- B01D63/06—Tubular membrane modules
- B01D63/067—Tubular membrane modules with pleated 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
- B01D69/04—Tubular membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
- B01D71/261—Polyethylene
-
- 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
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/28—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core
- G21C19/30—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps
- G21C19/307—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps specially adapted for liquids
-
- 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
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- Some of the factors which have resulted in less than complete separation include the large volumes of fluids being processed, the type of filtration media available for such separation processes, the nature and chemical composition of the particulate matter being removed, the fineness of the particulate matter and the nature of the fluids in which the particulate matter is found.
- a filtration system which comprises a porous, ultrahigh molecular weight polyethylene filter medium and at least one demineralizer for removing ionic materials from the liquid stream.
- the porous, ultrahigh molecular weight polyethylene filter medium has a pore size sufficient to filter particulate matter down to at least about 0.5 ⁇ m from a liquid stream comprising water as a continuous phase.
- the present invention may be employed in power generating systems during startup and steady state operating conditions.
- the present invention reduces the concentration of solid particulate contaminants in aqueous liquids, particularly aqueous liquids employed in power plants to no more than about 2 ppb, preferably no more than about 1 ppb and most preferably no more than about 0.5 ppb of total suspended solids.
- the present invention also reduces iron-containing particulate contaminants in power plant condensates to a level of no more than about 2 ppb, preferably no more than about 1 ppb and most preferably no more than about 0.5 ppb.
- iron-containing particulate contaminants in power plant condensates to a level of no more than about 2 ppb, preferably no more than about 1 ppb and most preferably no more than about 0.5 ppb.
- the condensate must contain no more than about 10 ppb, preferably no more than about 2 ppb, and in the case of BWR nuclear power generation plants, suspended solids in the condensate should be no more than about 5 ppb, preferably no more than about 0.'5 ppb and most preferably no more than about 0.3 ppb.
- the removal efficiency of the filter medium is determined herein by the OSU-F2 test, also known as the beta rating system.
- OSU-F2 test also known as the beta rating system.
- a standardized silicious contaminant, AC Fine Test Dust is prepared as a stable suspension in water at a preset concentration, and the suspension is pumped at 5 gpm/ft 2 (3.4.7 sec. /m 2 ) through the filter element.
- a military standard oil with a viscosity of 10 centipoise is used with a standardized silicious contaminant, AC Coarse Test Dust, and the suspension is pumped at 10 gpm/sq. ft. through the filter element.
- a series of standard liquids for testing are prepared with surface tensions varying in a sequential manner by about 2 to about 4 dynes/cm.
- Ten drops of each of at least two of the sequential surface tension standard liquids are independently placed on representative portions of the porous medium and allowed to stand for 10 minutes. Observation is made after 10 minutes.
- Wetting is defined as abso ⁇ tion into or obvious wetting of the porous medium by at least nine of the ten drops within 10 minutes.
- Non-wetting is defined by non-abso ⁇ tion or non-wetting of at least nine of the ten drops in 10 minutes.
- the reduced edgewise flow resistance provided by the thicker downstream support and drainage material of the medium surface area version of the invention is thought to contribute to more effective backwashing of the UHMWPE filter element. Such backwashing may be repeated periodically to achieve effective filtration and continued service life. Since the high surface area version has a higher dirt capacity than the medium surface area version, and such elements last at least a fuel cycle in a BWR power plant under normal conditions without backwashing, these elements may simply be disposed of if crud loading conditions cause the pressure drop to exceed the terminal pressure drop for the filters, or optionally they may be backwashed prior to the completion of a fuel cycle. The filters may also be backwashed prior to removal and disposal of the element to reduce radiation exposure to personnel.
- the fluid feed pipe 14 is used to introduce a fluid to be filtered into the first chamber 12 from an unillustrated source, and the lower drain pipe 16 is used to remove unwanted materials from the first chamber 12 and drain the first chamber 12.
- a make-up gas feed 26 may communicate with the first chamber 12 preferably just above the partition 11.
- the make-up gas feed pipe 26 supplies a make-up gas, such as air, to facilitate draining the first chamber 12 through the lower drain pipe 16. It may also serve to vent the first chamber 12.
- the fluid feed pipe 14, the lower drain pipe 16, and the gas feed pipe 26 are equipped with corresponding control valves 15, 17, and 27 for controlling flow through these pipes.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96933783A EP0876198B1 (en) | 1995-09-14 | 1996-09-13 | Method and device for removing iron from aqueous liquids |
DE69623133T DE69623133T2 (en) | 1995-09-14 | 1996-09-13 | METHOD AND DEVICE FOR REMOVING IRON FROM AQUEOUS LIQUIDS |
US09/029,904 US6387271B1 (en) | 1995-09-14 | 1996-09-13 | Method for separating solid particulates from a liquid |
JP9512127A JPH11512341A (en) | 1995-09-14 | 1996-09-13 | Method and apparatus for removing iron from aqueous liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US377395P | 1995-09-14 | 1995-09-14 | |
US60/003,773 | 1995-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997010047A1 true WO1997010047A1 (en) | 1997-03-20 |
Family
ID=21707523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/014706 WO1997010047A1 (en) | 1995-09-14 | 1996-09-13 | Method and device for removing iron from aqueous liquids |
Country Status (6)
Country | Link |
---|---|
US (1) | US6387271B1 (en) |
EP (1) | EP0876198B1 (en) |
JP (1) | JPH11512341A (en) |
KR (1) | KR19990044682A (en) |
DE (1) | DE69623133T2 (en) |
WO (1) | WO1997010047A1 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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US6378907B1 (en) * | 1996-07-12 | 2002-04-30 | Mykrolis Corporation | Connector apparatus and system including connector apparatus |
ATE446800T1 (en) * | 2000-05-12 | 2009-11-15 | Pall Corp | FILTER |
EP1322395B1 (en) * | 2000-09-13 | 2011-02-23 | Entegris, Inc. | Liquid filtration device |
US6706180B2 (en) * | 2001-08-13 | 2004-03-16 | Phase Inc. | System for vibration in a centrifuge |
US7469932B2 (en) * | 2001-09-13 | 2008-12-30 | Entegris, Inc. | Receptor for a separation module |
EP1448928B1 (en) * | 2001-09-13 | 2005-12-28 | Mykrolis Corporation | Separation module |
ITMI20020106A1 (en) * | 2002-01-22 | 2003-07-22 | Tm E S P A Termomeccanica Ecol | ION EXCHANGE RESIN PLANT |
WO2004080601A2 (en) * | 2003-03-11 | 2004-09-23 | Phase Inc. | Centrifuge with controlled discharge of dense material |
US6971525B2 (en) * | 2003-06-25 | 2005-12-06 | Phase Inc. | Centrifuge with combinations of multiple features |
EP1663461A4 (en) * | 2003-07-30 | 2009-01-14 | Phase Inc | Filtration system with enhanced cleaning and dynamic fluid separation |
US7371322B2 (en) * | 2003-07-30 | 2008-05-13 | Phase Inc. | Filtration system and dynamic fluid separation method |
US7282147B2 (en) * | 2003-10-07 | 2007-10-16 | Phase Inc. | Cleaning hollow core membrane fibers using vibration |
KR100854933B1 (en) * | 2008-03-07 | 2008-08-28 | 주식회사 에이치앤앤 | A filter device which can be able to wash precipitate in the filter |
WO2010027955A2 (en) | 2008-09-02 | 2010-03-11 | Natrix Separations Inc. | Chromatography membranes, devices containing them, and methods of use thereof |
JP2010207800A (en) * | 2009-02-16 | 2010-09-24 | Kuraray Co Ltd | Filtration unit, and filtration apparatus including the same |
WO2011152909A2 (en) * | 2010-03-09 | 2011-12-08 | Kurion, Inc. | Isotope-specific separation and vitrification using ion-specific media |
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US9546326B2 (en) | 2011-11-04 | 2017-01-17 | Ppg Industries Ohio, Inc. | Fluid emulsion purification processes using microporous materials having filtration and adsorption properties |
CA2929446C (en) * | 2013-11-12 | 2020-05-12 | Ppg Industries Ohio, Inc. | Filtration membrane comprising coated microporous material of polyolefin and particulate silica |
KR101944605B1 (en) * | 2017-01-23 | 2019-01-30 | (주)큰나무 | Hydrogen sulfide removal apparatus using the liquidphase-catalyst |
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KR101876129B1 (en) * | 2017-06-15 | 2018-07-06 | 두산중공업 주식회사 | Filter automatic cleaner and method of filter automatic cleaning using it and supercritical fluid power generation system comprising it |
CN108339823B (en) * | 2018-02-24 | 2023-08-04 | 江苏道宁药业有限公司 | Portable workshop particulate matter absorbing device |
WO2019241248A1 (en) * | 2018-06-13 | 2019-12-19 | Cargill, Incorporated | Liquid discharge filter and its use |
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1996
- 1996-09-13 JP JP9512127A patent/JPH11512341A/en active Pending
- 1996-09-13 US US09/029,904 patent/US6387271B1/en not_active Expired - Fee Related
- 1996-09-13 KR KR1019980701937A patent/KR19990044682A/en not_active Application Discontinuation
- 1996-09-13 EP EP96933783A patent/EP0876198B1/en not_active Expired - Lifetime
- 1996-09-13 DE DE69623133T patent/DE69623133T2/en not_active Expired - Fee Related
- 1996-09-13 WO PCT/US1996/014706 patent/WO1997010047A1/en not_active Application Discontinuation
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EP0484984A1 (en) * | 1990-11-09 | 1992-05-13 | Ebara Corporation | Method of mixed-bed filtration and demineralization with ion-exchange resins |
EP0504954A1 (en) * | 1991-02-18 | 1992-09-23 | Dsm N.V. | Microporous film of polyethylene and process for the production thereof |
US5230760A (en) * | 1991-11-06 | 1993-07-27 | Nippon Roki Co., Ltd. | Method for manufacturing micro membrane pleats type filter cartridge |
Also Published As
Publication number | Publication date |
---|---|
DE69623133D1 (en) | 2002-09-26 |
EP0876198B1 (en) | 2002-08-21 |
EP0876198A1 (en) | 1998-11-11 |
KR19990044682A (en) | 1999-06-25 |
US6387271B1 (en) | 2002-05-14 |
DE69623133T2 (en) | 2002-12-12 |
JPH11512341A (en) | 1999-10-26 |
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