FI106951B - Menetelmä BCTMP/CTMP-jäteveden käsittelemiseksi - Google Patents
Menetelmä BCTMP/CTMP-jäteveden käsittelemiseksi Download PDFInfo
- Publication number
- FI106951B FI106951B FI923148A FI923148A FI106951B FI 106951 B FI106951 B FI 106951B FI 923148 A FI923148 A FI 923148A FI 923148 A FI923148 A FI 923148A FI 106951 B FI106951 B FI 106951B
- Authority
- FI
- Finland
- Prior art keywords
- peo
- acrylamide
- process according
- polyethylene oxide
- molecular weight
- Prior art date
Links
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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/908—Organic
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72905291 | 1991-07-12 | ||
US07/729,052 US5178770A (en) | 1991-07-12 | 1991-07-12 | Method of treating bctmp/ctmp wastewater |
Publications (3)
Publication Number | Publication Date |
---|---|
FI923148A0 FI923148A0 (fi) | 1992-07-08 |
FI923148A FI923148A (fi) | 1993-01-13 |
FI106951B true FI106951B (fi) | 2001-05-15 |
Family
ID=24929386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI923148A FI106951B (fi) | 1991-07-12 | 1992-07-08 | Menetelmä BCTMP/CTMP-jäteveden käsittelemiseksi |
Country Status (9)
Country | Link |
---|---|
US (1) | US5178770A (de) |
EP (1) | EP0522334B1 (de) |
KR (1) | KR100189045B1 (de) |
CA (1) | CA2073419C (de) |
DE (1) | DE69206341T2 (de) |
ES (1) | ES2082280T3 (de) |
FI (1) | FI106951B (de) |
NO (1) | NO179458C (de) |
TW (1) | TW268928B (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5190683A (en) * | 1990-06-19 | 1993-03-02 | Baker Hughes Incorporated | Water clarification composition containing a water clarifier component and a floc modifier component |
US5230808A (en) * | 1991-06-17 | 1993-07-27 | Nalco Canada Inc. | Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
US5173208A (en) * | 1991-06-17 | 1992-12-22 | Nalco Canada Inc. | Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
SE500783C2 (sv) * | 1992-05-05 | 1994-09-05 | Eka Nobel Ab | Sätt att rena vedhartsinnehållande process- eller avloppsvatten |
NO176650C (no) * | 1992-11-11 | 1995-05-10 | Norsk Hydro As | Forbedret prosess for delvis oksidasjon av hydrokarbon og filtrering av en vandig sot/aske slurry (oppslemming) |
DE4317466A1 (de) * | 1993-05-26 | 1994-12-01 | Degussa | Verbessertes Verfahren zur Bleiche von Holzstoffen |
US5415733A (en) * | 1993-05-27 | 1995-05-16 | High Point Chemical Corp. | Method of removing hydrophilic ink |
US5368742A (en) * | 1993-06-01 | 1994-11-29 | B. G. Roberts Chemicals Inc. | Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams |
FR2722214B1 (fr) * | 1994-07-05 | 1996-08-30 | Centre Tech Ind Papier | Procede de traitement d'une suspension de fibres papetieres |
US5670020A (en) * | 1995-06-01 | 1997-09-23 | International Paper Company | Foam separation method for reducing AOX, COD, and color bodies of kraft pulp bleach plant effluents |
WO1997035067A1 (en) * | 1996-03-21 | 1997-09-25 | Betzdearborn Inc. | Antifoam compositions containing polymers and methods of use thereof |
US5779910A (en) * | 1996-04-08 | 1998-07-14 | Cytec Technology Corp. | Enhanced flocculation of mineral slurry with polymer blends |
DE19635967A1 (de) * | 1996-09-05 | 1998-03-12 | Voith Sulzer Stoffaufbereitung | Verfahren zur Reinigung einer Suspension aus Primärfaserstoff |
US6019904A (en) * | 1996-11-01 | 2000-02-01 | Nalco Chemical Company | Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters |
US5750034A (en) * | 1996-11-01 | 1998-05-12 | Nalco Chemical Company | Hydrophilic dispersion polymers for the clarification of deinking process waters |
KR19980059279A (ko) * | 1996-12-31 | 1998-10-07 | 박영구 | 솔빈산의 제조방법 |
KR19980059280A (ko) * | 1996-12-31 | 1998-10-07 | 박영구 | 솔빈산의 제조방법 |
GB9800497D0 (en) * | 1998-01-09 | 1998-03-04 | Allied Colloids Ltd | Dewatering of sludges |
ID27159A (id) * | 1998-04-24 | 2001-03-08 | Nalco Chemical Co | Penggunaan dispersi-dispersi polimer untuk penghilangan warna pabrik kertas |
US6132625A (en) | 1998-05-28 | 2000-10-17 | E. I. Du Pont De Nemours And Company | Method for treatment of aqueous streams comprising biosolids |
KR100579764B1 (ko) * | 1998-12-03 | 2006-05-15 | 날코 컴파니 | 탈잉크 공정 용수 정화용 염화 디알릴디메틸암모늄 및 아크릴아미드의 친수성 분산 중합체 |
US6203711B1 (en) * | 1999-05-21 | 2001-03-20 | E. I. Du Pont De Nemours And Company | Method for treatment of substantially aqueous fluids derived from processing inorganic materials |
US6780330B2 (en) | 2001-03-09 | 2004-08-24 | E. I. Du Pont De Nemours And Company | Removal of biomaterials from aqueous streams |
DE10291353B4 (de) * | 2001-04-02 | 2007-03-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Wasserlösliche verzweigte Blockcopolymere |
GB0109087D0 (en) | 2001-04-11 | 2001-05-30 | Ciba Spec Chem Water Treat Ltd | Treatment of suspensions |
US20040091581A1 (en) * | 2002-11-08 | 2004-05-13 | Ghislaine Joly | Starch/collagen casings for co-extruded food products |
GB0305079D0 (en) * | 2003-03-06 | 2003-04-09 | Mbt Holding Ag | Process |
CN101187182B (zh) * | 2007-11-27 | 2010-08-25 | 华泰集团有限公司 | Bct制浆后的废水在洗涤碱回收的白泥工艺的应用 |
US8163134B2 (en) * | 2008-09-22 | 2012-04-24 | Hercules Incorporated | Copolymer blend compositions for use to increase paper filler content |
JP6073109B2 (ja) * | 2012-11-12 | 2017-02-01 | サントリーホールディングス株式会社 | 嫌気性生物学的処理を施した廃水の脱色方法 |
US8992688B2 (en) * | 2013-03-10 | 2015-03-31 | Ecolab Usa Inc. | Lignin separation from lignocellulosic hydrolizates and acidified pulp mill liquors |
US9856159B2 (en) | 2013-04-12 | 2018-01-02 | Psmg, Llc | Polymer blends for flocculation |
US9714342B2 (en) * | 2013-08-22 | 2017-07-25 | Psmg, Llc | Particle suspensions of flocculating polymer powders |
US10011717B2 (en) | 2013-11-27 | 2018-07-03 | Psmg, Llc | Particle suspensions of flocculating polymer powders and powder flocculant polymer blends |
FI127158B (en) | 2015-09-02 | 2017-12-15 | Kemira Oyj | A method for removing humic substances from an alkaline solution |
FI3724395T3 (fi) * | 2017-12-15 | 2023-05-03 | Kemira Oyj | Menetelmä vesipitoisen syötteen käsittelemiseksi liuenneen kaasun vaahdotuksella |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3141816A (en) * | 1960-07-27 | 1964-07-21 | Nalco Chemical Co | Method of improving operational efficiency of white water recovery systems |
US3234076A (en) * | 1963-01-08 | 1966-02-08 | Nalco Chemical Co | Method of improving retention of fillers in paper making with acrylamidediallylamine copolymer |
US3738945A (en) * | 1972-02-04 | 1973-06-12 | H Panzer | Polyquaternary flocculants |
SE357950B (de) * | 1972-02-22 | 1973-07-16 | Casco Ab | |
US3843589A (en) * | 1973-02-05 | 1974-10-22 | Union Carbide Corp | Stable pumpable slurries of ethylene oxide polymers |
JPS50111864A (de) * | 1974-02-13 | 1975-09-02 | ||
US4147681A (en) * | 1976-02-24 | 1979-04-03 | Calgon Corporation | Stable, self-inverting water-in-oil emulsions |
JPS5335254A (en) * | 1976-09-14 | 1978-04-01 | Toa Gosei Chem Ind | Waste water treating method |
CA1150914A (en) * | 1980-11-28 | 1983-08-02 | Margaret J. Molnar | Amine-epichlorohydrin polymers for pitch control |
CA1194254A (en) * | 1980-11-28 | 1985-10-01 | Margaret J. Molnar | Diallyl dimethyl ammonium chloride polymers for pitch control |
SU1113446A2 (ru) * | 1983-06-30 | 1984-09-15 | Центральный научно-исследовательский институт бумаги | Способ получени бумаги |
US4738750A (en) * | 1986-02-10 | 1988-04-19 | Stone Container Corp. | System and method for treating pulp and paper mill waste water |
SE454507B (sv) * | 1986-11-21 | 1988-05-09 | Berol Kemi Ab | Sett att inom pappers-, massa- eller boardindustrin forbettra retention eller rening av cellulosafibersuspensioner resp avloppsvatten |
GB2211180B (en) * | 1987-09-10 | 1991-05-22 | Chemisolv Ltd | Treating effluent from a paper or board manufacturing process |
US4795531A (en) * | 1987-09-22 | 1989-01-03 | Nalco Chemical Company | Method for dewatering paper |
-
1991
- 1991-07-12 US US07/729,052 patent/US5178770A/en not_active Expired - Lifetime
-
1992
- 1992-06-19 ES ES92110416T patent/ES2082280T3/es not_active Expired - Lifetime
- 1992-06-19 DE DE69206341T patent/DE69206341T2/de not_active Expired - Lifetime
- 1992-06-19 EP EP92110416A patent/EP0522334B1/de not_active Expired - Lifetime
- 1992-07-01 TW TW081105228A patent/TW268928B/zh active
- 1992-07-08 FI FI923148A patent/FI106951B/fi not_active IP Right Cessation
- 1992-07-09 CA CA002073419A patent/CA2073419C/en not_active Expired - Fee Related
- 1992-07-10 NO NO922741A patent/NO179458C/no not_active IP Right Cessation
- 1992-07-10 KR KR1019920012269A patent/KR100189045B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO922741D0 (no) | 1992-07-10 |
CA2073419A1 (en) | 1993-01-13 |
US5178770A (en) | 1993-01-12 |
NO179458C (no) | 1996-10-09 |
ES2082280T3 (es) | 1996-03-16 |
CA2073419C (en) | 2002-11-19 |
FI923148A (fi) | 1993-01-13 |
EP0522334B1 (de) | 1995-11-29 |
KR100189045B1 (ko) | 1999-06-01 |
FI923148A0 (fi) | 1992-07-08 |
TW268928B (de) | 1996-01-21 |
KR930002244A (ko) | 1993-02-22 |
DE69206341D1 (de) | 1996-01-11 |
DE69206341T2 (de) | 1996-07-04 |
NO179458B (no) | 1996-07-01 |
EP0522334A1 (de) | 1993-01-13 |
NO922741L (no) | 1993-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |