SE9301161L - Förfarande för behandling av processvatten - Google Patents
Förfarande för behandling av processvattenInfo
- Publication number
- SE9301161L SE9301161L SE9301161A SE9301161A SE9301161L SE 9301161 L SE9301161 L SE 9301161L SE 9301161 A SE9301161 A SE 9301161A SE 9301161 A SE9301161 A SE 9301161A SE 9301161 L SE9301161 L SE 9301161L
- Authority
- SE
- Sweden
- Prior art keywords
- process water
- treating
- water
- metal ions
- metal compounds
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Removal Of Specific Substances (AREA)
- Paper (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301161A SE9301161L (sv) | 1993-04-07 | 1993-04-07 | Förfarande för behandling av processvatten |
PCT/SE1994/000130 WO1994023122A1 (en) | 1993-04-07 | 1994-02-17 | Method of treating process water |
AU63876/94A AU672501B2 (en) | 1993-04-07 | 1994-02-17 | Method of treating process water |
JP6521969A JPH08508546A (ja) | 1993-04-07 | 1994-02-17 | プロセス用水の処理方法 |
CA002160123A CA2160123A1 (en) | 1993-04-07 | 1994-02-17 | Method of treating process water |
NZ263264A NZ263264A (en) | 1993-04-07 | 1994-02-17 | Removal of metal ions from process water for bleaching pulp, comprising contacting with alkali and precipitation of low solubility metal compounds |
EP94911328A EP0693144A1 (de) | 1993-04-07 | 1994-02-17 | Verfahren zur behandlung von prozesswasser |
CN94191676A CN1120358A (zh) | 1993-04-07 | 1994-02-17 | 处理生产用水的方法 |
BR9406105A BR9406105A (pt) | 1993-04-07 | 1994-02-17 | Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose |
ZA941235A ZA941235B (en) | 1993-04-07 | 1994-02-23 | Method of treating process water |
FI954766A FI954766A0 (fi) | 1993-04-07 | 1995-10-06 | Prosessiveden käsittelymenetelmä |
NO953993A NO953993D0 (no) | 1993-04-07 | 1995-10-06 | Fremgangsmåte for behandling av prosessvann |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301161A SE9301161L (sv) | 1993-04-07 | 1993-04-07 | Förfarande för behandling av processvatten |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9301161D0 SE9301161D0 (sv) | 1993-04-07 |
SE9301161L true SE9301161L (sv) | 1994-10-08 |
Family
ID=20389509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9301161A SE9301161L (sv) | 1993-04-07 | 1993-04-07 | Förfarande för behandling av processvatten |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0693144A1 (de) |
JP (1) | JPH08508546A (de) |
CN (1) | CN1120358A (de) |
AU (1) | AU672501B2 (de) |
BR (1) | BR9406105A (de) |
CA (1) | CA2160123A1 (de) |
FI (1) | FI954766A0 (de) |
NO (1) | NO953993D0 (de) |
NZ (1) | NZ263264A (de) |
SE (1) | SE9301161L (de) |
WO (1) | WO1994023122A1 (de) |
ZA (1) | ZA941235B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9301160L (sv) * | 1992-08-28 | 1994-03-01 | Sunds Defibrator Ind Ab | Förfarande för behandling av processvatten |
SE504424C2 (sv) * | 1994-11-04 | 1997-02-10 | Kvaerner Pulping Tech | Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska |
US5792315A (en) * | 1995-02-27 | 1998-08-11 | Eka Chemicals Ab | Purifying aqueous effluent from a pulp mill using electro chemical membrane device |
SE9500732L (sv) * | 1995-02-27 | 1996-08-28 | Eka Chemicals Ab | Förfarande för behandling av vätskor |
SE9803384L (sv) * | 1998-03-02 | 1999-09-03 | Kemira Kemi Ab | Förfarande för behandling av processvatten |
SG172284A1 (en) * | 2008-12-19 | 2011-07-28 | Xyleco Inc | Processing biomass |
US20100263813A1 (en) * | 2009-04-21 | 2010-10-21 | Andritz Inc. | Green liquor pretreatment of lignocellulosic material |
WO2013040747A1 (zh) * | 2011-09-19 | 2013-03-28 | 北京沃特玛德环境技术股份有限公司 | 造纸工业碱回收固体废渣综合利用的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4684472A (en) * | 1985-12-26 | 1987-08-04 | Phillips Petroleum Company | Precipitation of waste chromium compounds utilizing an aqueous sulfide solution |
DE58902905D1 (de) * | 1989-04-28 | 1993-01-14 | Siemens Ag | Verfahren zum entfernen von kupfer aus abwasser. |
US5120448A (en) * | 1990-09-19 | 1992-06-09 | Dorica Josesph G | Removal of aox frm bleach plant mill effluents by ph shift using the alkalinity/acidity sources available at the mill |
EP0564443A1 (de) * | 1992-03-15 | 1993-10-06 | Kamyr, Inc. | Behandlung von Bleichabwässern |
-
1993
- 1993-04-07 SE SE9301161A patent/SE9301161L/ not_active Application Discontinuation
-
1994
- 1994-02-17 JP JP6521969A patent/JPH08508546A/ja active Pending
- 1994-02-17 BR BR9406105A patent/BR9406105A/pt not_active Application Discontinuation
- 1994-02-17 CA CA002160123A patent/CA2160123A1/en not_active Abandoned
- 1994-02-17 EP EP94911328A patent/EP0693144A1/de not_active Ceased
- 1994-02-17 NZ NZ263264A patent/NZ263264A/en unknown
- 1994-02-17 AU AU63876/94A patent/AU672501B2/en not_active Ceased
- 1994-02-17 CN CN94191676A patent/CN1120358A/zh active Pending
- 1994-02-17 WO PCT/SE1994/000130 patent/WO1994023122A1/en not_active Application Discontinuation
- 1994-02-23 ZA ZA941235A patent/ZA941235B/xx unknown
-
1995
- 1995-10-06 FI FI954766A patent/FI954766A0/fi unknown
- 1995-10-06 NO NO953993A patent/NO953993D0/no unknown
Also Published As
Publication number | Publication date |
---|---|
FI954766A (fi) | 1995-10-06 |
BR9406105A (pt) | 1995-12-12 |
ZA941235B (en) | 1994-09-20 |
WO1994023122A1 (en) | 1994-10-13 |
AU6387694A (en) | 1994-10-24 |
JPH08508546A (ja) | 1996-09-10 |
NO953993L (no) | 1995-10-06 |
AU672501B2 (en) | 1996-10-03 |
NZ263264A (en) | 1996-08-27 |
CA2160123A1 (en) | 1994-10-13 |
SE9301161D0 (sv) | 1993-04-07 |
EP0693144A1 (de) | 1996-01-24 |
FI954766A0 (fi) | 1995-10-06 |
NO953993D0 (no) | 1995-10-06 |
CN1120358A (zh) | 1996-04-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI854351A0 (fi) | Metod foer rening av ett permeabelt underjordiskt objekt. | |
ES8500969A1 (es) | Un procedimiento para preparar polieter-alcoholes y polieter polioles. | |
CA2138472A1 (en) | Fluorescent tracer in sludge dewatering | |
GB2110932A (en) | Method and composition for treating acne | |
ATE98713T1 (de) | Verfahren zur herstellung von lignocellulosepulpe. | |
FI950086A0 (fi) | Menetelmä massan valkaisemiseksi metallien adsorption yhteydessä | |
SE9301161L (sv) | Förfarande för behandling av processvatten | |
SE9803384D0 (sv) | Förfarande för behandling av processvatten | |
FI95607C (fi) | Menetelmä ja entsyymivalmiste selluloosamassojen käsittelemiseksi | |
FI945481A0 (fi) | Menetelmä paperimassoissa olevien metalli-ionien kelatoimiseksi korkealla pH-arvolla | |
ES8102991A1 (es) | Un procedimiento para aumentar el brillo de la piedra caliza | |
IL73228A0 (en) | Process for the production of penems | |
FI915813A0 (fi) | Menetelmä luonnollisesti tuotetun kymosiinin talteenottamiseksi | |
FI950882A0 (fi) | Menetelmä prosessiveden käsittelemiseksi | |
MX9602927A (es) | Procedimiento para blanquear pasta pulpa kraft. | |
EP0049831A3 (en) | Process for the precipitation of lignosulfonate from waste sulfite liquor | |
SE9403779L (sv) | Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta en sulfid- och karbonathaltig vätska | |
AU659039B2 (en) | Process for bleaching of lignocellulose-containing pulp | |
FI97972B (fi) | Menetelmä kalsiumkarbonaattia sisältävien partikkelien valkaisemiseksi | |
FI950761A0 (fi) | Menetelmä raskasmetallien eliminoimiseksi | |
ATE13868T1 (de) | Verfahren zum anaeroben abbau von calciumionenhaltigen schwemm- und waschwaessern sowie dekantierten schlammtransportwaessern. | |
NO951464L (no) | Fremgangsmåte til behandling av sulfittmasse för bleking med oksygenholdige kjemikalier | |
SE9301293L (sv) | Förfarande för blekning av lignocellulosahaltig massa | |
JPS52114704A (en) | Process for treating drainage from chlorine base pulp bleaching plant | |
AU8892182A (en) | Sludge treatment or dewatering process |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9301161-7 Format of ref document f/p: F |