FI106950B - Avvattning av vattenhaltiga suspensioner - Google Patents
Avvattning av vattenhaltiga suspensioner Download PDFInfo
- Publication number
- FI106950B FI106950B FI940437A FI940437A FI106950B FI 106950 B FI106950 B FI 106950B FI 940437 A FI940437 A FI 940437A FI 940437 A FI940437 A FI 940437A FI 106950 B FI106950 B FI 106950B
- Authority
- FI
- Finland
- Prior art keywords
- suspension
- process according
- cationic
- weight
- polymer
- Prior art date
Links
- 239000007900 aqueous suspension Substances 0.000 title claims description 7
- 239000000725 suspension Substances 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 50
- 125000000129 anionic group Chemical group 0.000 claims abstract description 23
- 125000002091 cationic group Chemical group 0.000 claims abstract description 23
- 238000011085 pressure filtration Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims description 47
- 229920000642 polymer Polymers 0.000 claims description 27
- 239000000178 monomer Substances 0.000 claims description 19
- 229920006317 cationic polymer Polymers 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 238000005188 flotation Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000592 inorganic polymer Polymers 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims 1
- 229920003043 Cellulose fiber Polymers 0.000 claims 1
- -1 alkyl amide Chemical class 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000002761 deinking Substances 0.000 abstract 1
- 235000012216 bentonite Nutrition 0.000 description 12
- 239000000976 ink Substances 0.000 description 12
- 229910000278 bentonite Inorganic materials 0.000 description 11
- 239000000440 bentonite Substances 0.000 description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000010802 sludge Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 239000000701 coagulant Substances 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 150000003926 acrylamides Chemical class 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002873 Polyethylenimine Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000004103 aminoalkyl group Chemical group 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 229910000281 calcium bentonite Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N dichloromethane Substances ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910000286 fullers earth Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003295 industrial effluent Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNLHWLYAOHNSCH-UHFFFAOYSA-N methyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[NH+](C)CC=C VNLHWLYAOHNSCH-UHFFFAOYSA-N 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/03—Processes of filtration using flocculating agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Extraction Or Liquid Replacement (AREA)
- Removal Of Specific Substances (AREA)
- Paper (AREA)
- Physical Water Treatments (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Claims (13)
1. Förfarande för avskiljning av suspenderad fastsubstans frän en vattenhaltig suspension av suspenderad fastsubstans omfattande cellulosafiber och hydrofobt ma- 5 terial genom att blanda ett katjoniskt polymert flockningsmedel i suspensionen och därmed flocka den suspenderade fastsubstansen och sedan avskilja den flockade fastsubstansen frän suspensionen genom tryckfiltrering, varvid en kaka erhälles, kännetecknat därav, att den flockade fastsubstansen hopsamlas genom att i den flockade suspensionen inblanda ett anjoniskt kolloidalt material, vilket är valt frän 10 oorganiska polymerer och svällande lera, och utföra tryckfiltrering av suspen sionen innehällande den hopsamlade fastsubstansen.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att suspensionen om-fattar fastsubstans frän fabriksavfall. 15
3. Förfarande enligt patentkravet 2, kännetecknat därav, att suspensionen är en suspension innehällande 5-50 vikt-% olösliga bläckpartiklar, 10 - 70 vikt-% cellulosafibrer och finsubstans och 0-80 vikt-% fyllmedel, vilka procenttal är baserade pä totalmängden fastssubstans. 20
4. Förfarande enligt patentkravet 2 eller 3, kännetecknat därav, att suspensionen ;, ' omfattar rejektsuspensionen , som erhällits vid en pappersavfargningsprocess, där ' . en suspension av pappersfinmaterial, fyllmedel och bläckpartiklar utsättes för flotation för att avskilja en hydrofob rejektsuspension frän hydrofil acceptfraktion. • t "ji5
5. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, • · · · . att det utgör en del av en pappersavfargningsprocess, och kakan dumpas. • · c .*·*.
6. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, ·»« ♦***: att tryckfiltreringen utförs med en rempress. .:¾ « 4
....: 7. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, * . att den flockade fastsubstansen bryts ned tili mikroflock genom blandning före I « . tillsats av det anjoniska kolloidala materialet. 106950
8. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, att det anjoniska kolloidala materialet är en anjonisk sväUande lera.
9. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, 5 att suspensionen har en suspenderad fastsubstanshalt av minst 0,1 vikt-%.
10. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, att polymerens gränsviskositet är minst 4 dl/g. 10
11. Förfarande enligt patentkravet 10, kännetecknat därav, att polymeren är en kopolymer av alkylamid med dialkylamino(met)akrylat eller dialkylamino-al-kyl(met)akrylamid som syrasalt eller kvaternärt ammoniumsalt.
12. Förfarande enligt nägot av patentkraven 1-9, kännetecknat därav, att den 15 katjoniska polymeren är en vattenlöslig organisk syntetisk polymer vald frän po- lymerer av katjonisk etyleniskt omättad monomer, polyetenimin, dicyandiamid-polymerer, och polyaminepildorhydrinpolymerer, i vilka polymerens gränsviskositet är 0,2 - 3dl/g och den är bildad frän monomer av vilken minst 50 vikt-% är katjonisk. 20
« ; , 13. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, I I I I 1. att suspensionen innehällande ihopsamlad fastsubstans bildas genom tillsats av ett I I I annat katjoniskt polymert flockningsmedel före tryckfiltreringen, varvid detta * · andra flockningsmedels gränsviskositet är minst 4 dl/g. • · t» • · i • · » • % t « • · » « · • · • · · r » i « i « I · · I « f
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9116701A GB9116701D0 (en) | 1991-08-02 | 1991-08-02 | Dewatering of aqueous suspensions |
| GB9116701 | 1991-08-02 | ||
| PCT/GB1992/001430 WO1993002967A1 (en) | 1991-08-02 | 1992-08-03 | Dewatering of aqueous suspensions |
| GB9201430 | 1992-08-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI940437L FI940437L (sv) | 1994-01-28 |
| FI940437A0 FI940437A0 (sv) | 1994-01-28 |
| FI106950B true FI106950B (sv) | 2001-05-15 |
Family
ID=10699404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI940437A FI106950B (sv) | 1991-08-02 | 1994-01-28 | Avvattning av vattenhaltiga suspensioner |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0641293B1 (sv) |
| JP (1) | JP3313711B2 (sv) |
| KR (1) | KR100213669B1 (sv) |
| AT (1) | ATE172697T1 (sv) |
| AU (1) | AU664851B2 (sv) |
| BR (1) | BR9206329A (sv) |
| CA (1) | CA2114436C (sv) |
| DE (1) | DE69227466T2 (sv) |
| DK (1) | DK0641293T3 (sv) |
| ES (1) | ES2123566T3 (sv) |
| FI (1) | FI106950B (sv) |
| GB (1) | GB9116701D0 (sv) |
| MX (1) | MX9204515A (sv) |
| NO (1) | NO305746B1 (sv) |
| WO (1) | WO1993002967A1 (sv) |
| ZA (1) | ZA925787B (sv) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9322118D0 (en) * | 1993-10-27 | 1993-12-15 | Allied Colloids Ltd | Treatment of cellulosic material and compositions for use in this |
| US5637191A (en) * | 1992-04-15 | 1997-06-10 | Allied Colloids Limited | Treatment of cellulosic material and compositions for use in this |
| US5454955A (en) * | 1994-03-25 | 1995-10-03 | Nalco Chemical Company | Use of hectorite as a clarification aid for deink plant effluent |
| CA2203883A1 (en) * | 1994-10-31 | 1996-05-09 | Gerald Guerro | Methods of coagulating and decolorizing waste streams |
| US5562832A (en) * | 1995-01-13 | 1996-10-08 | Beloit Technologies, Inc. | Absorptive sludge dewatering process for papermaking waste |
| GB9507710D0 (en) * | 1995-04-13 | 1995-05-31 | Ecc Int Ltd | Waste paper treatment process |
| IT1297042B1 (it) * | 1997-12-31 | 1999-08-03 | De La Rue Giori Sa | Procedimento di produzione di soluzione di asciugatura fresca e di trattamento della soluzione di asciugatura usata e dispositivo di |
| GB9800497D0 (en) * | 1998-01-09 | 1998-03-04 | Allied Colloids Ltd | Dewatering of sludges |
| GB0218021D0 (en) | 2002-08-05 | 2002-09-11 | Ciba Spec Chem Water Treat Ltd | Production of a fermentation product |
| GB0220602D0 (en) * | 2002-09-05 | 2002-10-16 | Salvtech Ltd | A method of producing moulded products from waste paper |
| JP3969355B2 (ja) * | 2003-06-24 | 2007-09-05 | 株式会社石垣 | 懸濁物質の凝集処理方法 |
| GB0405493D0 (en) * | 2004-03-12 | 2004-04-21 | Ciba Spec Chem Water Treat Ltd | Dewatering process |
| US8382950B2 (en) * | 2007-09-12 | 2013-02-26 | Nalco Company | Recycling of waste coating color |
| JP5310370B2 (ja) * | 2009-08-07 | 2013-10-09 | 王子ホールディングス株式会社 | 脱墨パルプの製造方法 |
| CA3050234C (en) | 2009-09-15 | 2022-11-08 | Suncor Energy Inc. | Techniques for flocculating and dewatering fine tailings |
| US9404686B2 (en) | 2009-09-15 | 2016-08-02 | Suncor Energy Inc. | Process for dying oil sand mature fine tailings |
| CA2735330C (en) | 2009-10-30 | 2015-06-02 | Suncor Energy Inc. | Depositing and farming methods for drying fine tailings |
| JP5724075B2 (ja) * | 2009-11-11 | 2015-05-27 | デュプロ精工株式会社 | 脱墨排液処理装置、脱墨システム及び脱墨排液の処理方法 |
| EP2363290A1 (en) * | 2010-03-05 | 2011-09-07 | KBA-NotaSys SA | Installation and process for recycling wiping solution of one or more intaglio printing presses |
| DE102014116682B4 (de) | 2013-11-15 | 2018-01-25 | Wolfgang BITSCH | Verfahren zur Entwässerung von Bentonit-Suspensionen |
| CN107055856A (zh) * | 2017-03-01 | 2017-08-18 | 嘉兴新璞环保科技有限公司 | 一种水墨污水处理系统 |
| CN108724990B (zh) * | 2017-04-24 | 2021-05-18 | 精工爱普生株式会社 | 处理装置、薄片制造装置、处理方法以及薄片的制造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3046233A (en) * | 1957-12-17 | 1962-07-24 | Midland Ross Corp | Treatment of aqueous solutions |
| FR1472923A (fr) * | 1963-12-30 | 1967-03-17 | Hollifield Corp | Procédé pour clarifier des fluides effluents de déchets provenant du désencrage de papiers imprimés |
| US3617568A (en) * | 1970-01-02 | 1971-11-02 | Standard Oil Co | Process for flocculating colloidal particles by the sequential addition of polymers |
| FR2649091B1 (fr) * | 1989-06-29 | 1991-10-04 | Du Pin Cellulose | Procede et dispositif pour le traitement des effluents contenant des encres a l'eau |
| US5071587A (en) * | 1990-05-31 | 1991-12-10 | Aquatechnica, Inc. | Composition and method for purifying water |
-
1991
- 1991-08-02 GB GB9116701A patent/GB9116701D0/en active Pending
-
1992
- 1992-07-31 ZA ZA925787A patent/ZA925787B/xx unknown
- 1992-08-03 ES ES92916660T patent/ES2123566T3/es not_active Expired - Lifetime
- 1992-08-03 BR BR9206329A patent/BR9206329A/pt not_active IP Right Cessation
- 1992-08-03 MX MX9204515A patent/MX9204515A/es unknown
- 1992-08-03 KR KR1019940700317A patent/KR100213669B1/ko not_active Expired - Fee Related
- 1992-08-03 EP EP19920916660 patent/EP0641293B1/en not_active Expired - Lifetime
- 1992-08-03 WO PCT/GB1992/001430 patent/WO1993002967A1/en not_active Ceased
- 1992-08-03 DE DE69227466T patent/DE69227466T2/de not_active Expired - Lifetime
- 1992-08-03 AU AU23800/92A patent/AU664851B2/en not_active Ceased
- 1992-08-03 DK DK92916660T patent/DK0641293T3/da active
- 1992-08-03 CA CA 2114436 patent/CA2114436C/en not_active Expired - Fee Related
- 1992-08-03 AT AT92916660T patent/ATE172697T1/de not_active IP Right Cessation
- 1992-08-03 JP JP50340893A patent/JP3313711B2/ja not_active Expired - Fee Related
-
1994
- 1994-01-28 FI FI940437A patent/FI106950B/sv active
- 1994-02-01 NO NO940335A patent/NO305746B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2114436C (en) | 2004-06-01 |
| FI940437L (sv) | 1994-01-28 |
| ZA925787B (en) | 1993-08-02 |
| WO1993002967A1 (en) | 1993-02-18 |
| BR9206329A (pt) | 1995-04-04 |
| MX9204515A (es) | 1993-04-01 |
| JP3313711B2 (ja) | 2002-08-12 |
| KR100213669B1 (ko) | 1999-08-02 |
| DE69227466T2 (de) | 1999-03-18 |
| GB9116701D0 (en) | 1991-09-18 |
| AU2380092A (en) | 1993-03-02 |
| ES2123566T3 (es) | 1999-01-16 |
| AU664851B2 (en) | 1995-12-07 |
| EP0641293B1 (en) | 1998-10-28 |
| DE69227466D1 (de) | 1998-12-03 |
| JPH06509742A (ja) | 1994-11-02 |
| CA2114436A1 (en) | 1993-02-18 |
| ATE172697T1 (de) | 1998-11-15 |
| NO305746B1 (no) | 1999-07-19 |
| DK0641293T3 (da) | 1999-07-12 |
| NO940335L (no) | 1994-02-01 |
| NO940335D0 (no) | 1994-02-01 |
| FI940437A0 (sv) | 1994-01-28 |
| EP0641293A1 (en) | 1995-03-08 |
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