FI954766A0 - Process water treatment method - Google Patents

Process water treatment method

Info

Publication number
FI954766A0
FI954766A0 FI954766A FI954766A FI954766A0 FI 954766 A0 FI954766 A0 FI 954766A0 FI 954766 A FI954766 A FI 954766A FI 954766 A FI954766 A FI 954766A FI 954766 A0 FI954766 A0 FI 954766A0
Authority
FI
Finland
Prior art keywords
water treatment
treatment method
process water
water
treatment
Prior art date
Application number
FI954766A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI954766A (en
Inventor
Ulf Germgaord
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
Publication of FI954766A0 publication Critical patent/FI954766A0/en
Publication of FI954766A publication Critical patent/FI954766A/en

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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Physical Water Treatments (AREA)
FI954766A 1993-04-07 1995-10-06 Process water treatment method FI954766A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301161A SE9301161L (en) 1993-04-07 1993-04-07 Process for treating process water
PCT/SE1994/000130 WO1994023122A1 (en) 1993-04-07 1994-02-17 Method of treating process water

Publications (2)

Publication Number Publication Date
FI954766A0 true FI954766A0 (en) 1995-10-06
FI954766A FI954766A (en) 1995-10-06

Family

ID=20389509

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954766A FI954766A (en) 1993-04-07 1995-10-06 Process water treatment method

Country Status (12)

Country Link
EP (1) EP0693144A1 (en)
JP (1) JPH08508546A (en)
CN (1) CN1120358A (en)
AU (1) AU672501B2 (en)
BR (1) BR9406105A (en)
CA (1) CA2160123A1 (en)
FI (1) FI954766A (en)
NO (1) NO953993L (en)
NZ (1) NZ263264A (en)
SE (1) SE9301161L (en)
WO (1) WO1994023122A1 (en)
ZA (1) ZA941235B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9301160L (en) * 1992-08-28 1994-03-01 Sunds Defibrator Ind Ab Process for treating process water
SE504424C2 (en) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Ways to precipitate transition metals and alkaline earth metals from bleaching liquids by adding alkaline liquid
SE9500732L (en) * 1995-02-27 1996-08-28 Eka Chemicals Ab Procedure for the treatment of liquids
US5792315A (en) * 1995-02-27 1998-08-11 Eka Chemicals Ab Purifying aqueous effluent from a pulp mill using electro chemical membrane device
SE9803384L (en) 1998-03-02 1999-09-03 Kemira Kemi Ab Process for treating process water
KR101797247B1 (en) * 2008-12-19 2017-12-12 질레코 인코포레이티드 Processing biomass
US20100263813A1 (en) * 2009-04-21 2010-10-21 Andritz Inc. Green liquor pretreatment of lignocellulosic material
CN103180506A (en) * 2011-09-19 2013-06-26 北京沃特玛德环境技术股份有限公司 Method for comprehensively utilizing solid waste during soda recovery in papermaking industry

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
EP0394541B1 (en) * 1989-04-28 1992-12-02 Siemens Aktiengesellschaft Process for removing copper from waste water
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
BR9406105A (en) 1995-12-12
SE9301161D0 (en) 1993-04-07
NO953993D0 (en) 1995-10-06
AU6387694A (en) 1994-10-24
CA2160123A1 (en) 1994-10-13
SE9301161L (en) 1994-10-08
EP0693144A1 (en) 1996-01-24
ZA941235B (en) 1994-09-20
NZ263264A (en) 1996-08-27
NO953993L (en) 1995-10-06
CN1120358A (en) 1996-04-10
JPH08508546A (en) 1996-09-10
AU672501B2 (en) 1996-10-03
WO1994023122A1 (en) 1994-10-13
FI954766A (en) 1995-10-06

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