CA2241193A1 - Procede d'epuration d'un liquide pollue par des molecules filiformes - Google Patents
Procede d'epuration d'un liquide pollue par des molecules filiformes Download PDFInfo
- Publication number
- CA2241193A1 CA2241193A1 CA002241193A CA2241193A CA2241193A1 CA 2241193 A1 CA2241193 A1 CA 2241193A1 CA 002241193 A CA002241193 A CA 002241193A CA 2241193 A CA2241193 A CA 2241193A CA 2241193 A1 CA2241193 A1 CA 2241193A1
- Authority
- CA
- Canada
- Prior art keywords
- nanofiltration
- accordance
- contaminated
- dalton
- hemicellulose
- 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.)
- Abandoned
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 41
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 47
- 238000001728 nano-filtration Methods 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims description 35
- 229920002488 Hemicellulose Polymers 0.000 claims description 33
- 239000003518 caustics Substances 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010889 donnan-equilibrium Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 abstract description 7
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 15
- 239000011148 porous material Substances 0.000 description 14
- 238000000108 ultra-filtration Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- 239000012466 permeate Substances 0.000 description 8
- 238000001223 reverse osmosis Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- -1 aliphatic alcohols Chemical class 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 239000005720 sucrose Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009295 crossflow filtration Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 235000019520 non-alcoholic beverage Nutrition 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012465 retentate Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 239000002023 wood 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
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/28—Purification; Separation
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Des liquides qui ont été pollués dans une installation de production par des molécules filiformes ayant des masses molaires d'au moins 10 000 daltons sont épurés par séparation par membrane, avant d'être renvoyés dans l'installation de production. Ces liquides peuvent par exemple être de la soude caustique polluée par de l'hémicellulose, comme il s'en produit dans le cadre de la préparation de cellulose et de viscose. Ce précédé de séparation par membrane se caractérise en ce qu'une nanofiltration est effectuée avec une limite de séparation inférieure à 1000 daltons.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3655/95 | 1995-12-23 | ||
| CH365595 | 1995-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2241193A1 true CA2241193A1 (fr) | 1997-07-03 |
Family
ID=4260685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002241193A Abandoned CA2241193A1 (fr) | 1995-12-23 | 1996-12-20 | Procede d'epuration d'un liquide pollue par des molecules filiformes |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0876196A1 (fr) |
| AU (1) | AU1136697A (fr) |
| CA (1) | CA2241193A1 (fr) |
| DE (1) | DE19681150D2 (fr) |
| WO (1) | WO1997023279A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009523857A (ja) * | 2006-01-13 | 2009-06-25 | セラニーズ アセテート，エルエルシー | セルロースエステルの製造、パルプの予備処理からのアルカリおよび／または酸リサイクル |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000354742A (ja) | 1999-04-13 | 2000-12-26 | Nitto Denko Corp | スパイラル型分離膜エレメント |
| US6896810B2 (en) * | 2002-08-02 | 2005-05-24 | Rayonier Products And Financial Services Company | Process for producing alkaline treated cellulosic fibers |
| AT413708B (de) * | 2003-12-18 | 2006-05-15 | Chemiefaser Lenzing Ag | Verfahren zur reinigung von mit makromolekularen kohlehydraten und/oder deren abbauprodukten verunreinigten aggregaten |
| AT413548B (de) * | 2004-06-02 | 2006-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines chemiezellstoffes und seine verwendung |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3556992A (en) * | 1969-07-22 | 1971-01-19 | Amicon Corp | Anisotropic ultrafiltration membrane having adhering coating and methods of forming and using this membrane |
| US4270914A (en) * | 1979-10-26 | 1981-06-02 | Borregaard Industries Limited | Process for controlling hemicellulose concentration during the mercerization of cellulose |
| SE453840B (sv) * | 1984-12-21 | 1988-03-07 | Mo Och Domsjoe Ab | Forfarande vid framstellning av cellulosamassa |
| ATE142530T1 (de) * | 1992-03-06 | 1996-09-15 | Filtrox Werk Ag | Verfahren zur filtration verschmutzter lauge und anlage zur durchführung des verfahrens |
| IL109249A0 (en) * | 1994-04-07 | 1994-07-31 | Weizmann Kiryat Membrane Prod | Process and system for purifying a contaminated caustic feed solution |
-
1996
- 1996-12-20 AU AU11366/97A patent/AU1136697A/en not_active Abandoned
- 1996-12-20 EP EP96942225A patent/EP0876196A1/fr not_active Withdrawn
- 1996-12-20 CA CA002241193A patent/CA2241193A1/fr not_active Abandoned
- 1996-12-20 DE DE19681150T patent/DE19681150D2/de not_active Ceased
- 1996-12-20 WO PCT/CH1996/000454 patent/WO1997023279A1/fr not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009523857A (ja) * | 2006-01-13 | 2009-06-25 | セラニーズ アセテート，エルエルシー | セルロースエステルの製造、パルプの予備処理からのアルカリおよび／または酸リサイクル |
| CN102558364A (zh) * | 2006-01-13 | 2012-07-11 | 赛拉尼斯醋酸盐有限公司 | 纤维素酯的制造:浆料预处理中的碱和/或酸的回收 |
| CN101346510B (zh) * | 2006-01-13 | 2013-03-13 | 赛拉尼斯醋酸盐有限公司 | 纤维素酯的制造：浆料预处理中的碱和/或酸的回收 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0876196A1 (fr) | 1998-11-11 |
| DE19681150D2 (de) | 1999-08-12 |
| AU1136697A (en) | 1997-07-17 |
| WO1997023279A1 (fr) | 1997-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20001220 |