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SE9301161L - Förfarande för behandling av processvatten - Google Patents

Förfarande för behandling av processvatten

Info

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
Application number
SE9301161A
Other languages
Unknown language ( )
English (en)
Other versions
SE9301161D0 (sv
Inventor
Ulf Germgaard
Solveig Norden
Original Assignee
Sunds Defibrator Ind Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Priority to SE9301161A priority Critical patent/SE9301161L/sv
Publication of SE9301161D0 publication Critical patent/SE9301161D0/sv
Priority to FI954766A priority patent/FI954766L/sv
Priority to CA002160123A priority patent/CA2160123A1/en
Priority to EP94911328A priority patent/EP0693144A1/en
Priority to NZ263264A priority patent/NZ263264A/en
Priority to AU63876/94A priority patent/AU672501B2/en
Priority to JP6521969A priority patent/JPH08508546A/ja
Priority to PCT/SE1994/000130 priority patent/WO1994023122A1/en
Priority to CN94191676A priority patent/CN1120358A/zh
Priority to BR9406105A priority patent/BR9406105A/pt
Priority to ZA941235A priority patent/ZA941235B/xx
Publication of SE9301161L publication Critical patent/SE9301161L/sv
Priority to NO953993A priority patent/NO953993D0/no

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)
SE9301161A 1993-04-07 1993-04-07 Förfarande för behandling av processvatten SE9301161L (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9301161A SE9301161L (sv) 1993-04-07 1993-04-07 Förfarande för behandling av processvatten
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
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
CA002160123A CA2160123A1 (en) 1993-04-07 1994-02-17 Method of treating process water
EP94911328A EP0693144A1 (en) 1993-04-07 1994-02-17 Method of treating process water
FI954766A FI954766L (sv) 1993-04-07 1994-02-17 Behandlingsmetod för processvatten
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
PCT/SE1994/000130 WO1994023122A1 (en) 1993-04-07 1994-02-17 Method of treating process water
CN94191676A CN1120358A (zh) 1993-04-07 1994-02-17 处理生产用水的方法
ZA941235A ZA941235B (en) 1993-04-07 1994-02-23 Method of treating process water
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 (sv)
JP (1) JPH08508546A (sv)
CN (1) CN1120358A (sv)
AU (1) AU672501B2 (sv)
BR (1) BR9406105A (sv)
CA (1) CA2160123A1 (sv)
FI (1) FI954766L (sv)
NO (1) NO953993D0 (sv)
NZ (1) NZ263264A (sv)
SE (1) SE9301161L (sv)
WO (1) WO1994023122A1 (sv)
ZA (1) ZA941235B (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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
SE9500732L (sv) * 1995-02-27 1996-08-28 Eka Chemicals Ab Förfarande för behandling av vätskor
US5792315A (en) * 1995-02-27 1998-08-11 Eka Chemicals Ab Purifying aqueous effluent from a pulp mill using electro chemical membrane device
SE9803384L (sv) * 1998-03-02 1999-09-03 Kemira Kemi Ab Förfarande för behandling av processvatten
SG188873A1 (en) * 2008-12-19 2013-04-30 Xyleco Inc Processing biomass
US20100263813A1 (en) * 2009-04-21 2010-10-21 Andritz Inc. Green liquor pretreatment of lignocellulosic material
CN103180506A (zh) * 2011-09-19 2013-06-26 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)

* Cited by examiner, † Cited by third party
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
ES2053858T3 (es) * 1989-04-28 1994-08-01 Siemens Ag Procedimiento para la eliminacion de cobre de agua residual.
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 (en) * 1992-03-15 1993-10-06 Kamyr, Inc. Treatment of bleach plant filtrates

Also Published As

Publication number Publication date
CN1120358A (zh) 1996-04-10
AU6387694A (en) 1994-10-24
ZA941235B (en) 1994-09-20
SE9301161D0 (sv) 1993-04-07
NO953993L (no) 1995-10-06
FI954766A0 (sv) 1995-10-06
EP0693144A1 (en) 1996-01-24
FI954766A7 (sv) 1995-10-06
CA2160123A1 (en) 1994-10-13
BR9406105A (pt) 1995-12-12
JPH08508546A (ja) 1996-09-10
AU672501B2 (en) 1996-10-03
NO953993D0 (no) 1995-10-06
NZ263264A (en) 1996-08-27
FI954766L (sv) 1995-10-06
WO1994023122A1 (en) 1994-10-13

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