FI971605A0 - Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen - Google Patents

Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen

Info

Publication number
FI971605A0
FI971605A0 FI971605A FI971605A FI971605A0 FI 971605 A0 FI971605 A0 FI 971605A0 FI 971605 A FI971605 A FI 971605A FI 971605 A FI971605 A FI 971605A FI 971605 A0 FI971605 A0 FI 971605A0
Authority
FI
Finland
Prior art keywords
treating
alkaline wastewater
bleaching acid
wastewater separately
separately
Prior art date
Application number
FI971605A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI971605A (fi
Inventor
Johan Landfors
Hans Johansson
Mikael Engstroem
Original Assignee
Eka Chemicals 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
Priority claimed from SE9403372A external-priority patent/SE9403372L/xx
Priority claimed from SE9502169A external-priority patent/SE9502169D0/xx
Application filed by Eka Chemicals Ab filed Critical Eka Chemicals Ab
Publication of FI971605A0 publication Critical patent/FI971605A0/fi
Publication of FI971605A publication Critical patent/FI971605A/fi

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1026Other features in bleaching processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/009Collecting, removing and/or treatment of the condensate
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048Purification of waste water by evaporation
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028Effluents derived from the washing or bleaching plants
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0042Fractionating or concentration of spent liquors by special methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
FI971605A 1994-10-05 1997-04-16 Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen FI971605A (fi)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE9403372A SE9403372L (sv) 1994-10-05 1994-10-05 Rening och recirkulation av avloppsvatten till ett massablekeri genom elektrodialys eller indunstning och förbränning
US13995P 1995-06-12 1995-06-12
SE9502169A SE9502169D0 (sv) 1995-06-14 1995-06-14 Förfarande för rening av processvatten vid massaframställning
US191495P 1995-06-20 1995-06-20
PCT/SE1995/001121 WO1996011299A1 (en) 1994-10-05 1995-10-03 A method for treating acid and alkaline waste streams from a bleach plant separately

Publications (2)

Publication Number Publication Date
FI971605A0 true FI971605A0 (fi) 1997-04-16
FI971605A FI971605A (fi) 1997-04-16

Family

ID=26662147

Family Applications (1)

Application Number Title Priority Date Filing Date
FI971605A FI971605A (fi) 1994-10-05 1997-04-16 Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen

Country Status (8)

Country Link
EP (1) EP0784721A1 (ja)
JP (1) JPH10506964A (ja)
AU (1) AU3712195A (ja)
BR (1) BR9509188A (ja)
CA (1) CA2201117A1 (ja)
FI (1) FI971605A (ja)
NO (1) NO971504D0 (ja)
WO (1) WO1996011299A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0863113A1 (en) * 1997-03-07 1998-09-09 Akzo Nobel N.V. Process for treating wastewater
CA2282849C (en) 1997-03-07 2004-07-13 Akzo Nobel N.V. Process for treating wastewater
WO2001032561A1 (en) * 1999-11-02 2001-05-10 Shell Internationale Research Maatschappij B.V. Process for the purification of industrial waste water from a propylene oxide production process
FR2809385A1 (fr) * 2000-05-26 2001-11-30 Tsb Internat Methode et installation d'epuration et de dessalement de l'eau de mer
CN1321070C (zh) * 2005-02-03 2007-06-13 刘德沛 环氧丙烷生产废水处理方法及其多效蒸发装置
CN104928963B (zh) * 2015-05-08 2017-10-24 白博 一种零排放的化机浆制浆废液在线高浓提取工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986951A (en) * 1975-11-18 1976-10-19 Champion International Corporation Chlorine-based bleachery effluent treatment
US4049490A (en) * 1976-02-23 1977-09-20 Veniamin Petrovich Zaplatin Electrodialysis of bleaching effluent
AU619580B2 (en) * 1988-08-23 1992-01-30 Sappi Limited Elimination of bleach effluents
FI85293C (sv) * 1990-05-04 1992-03-25 Poeyry Jaakko & Co Oy Förfarande för rening och återföring av cellulosafabrikers blekeriavva tten

Also Published As

Publication number Publication date
CA2201117A1 (en) 1996-04-18
NO971504L (no) 1997-04-03
BR9509188A (pt) 1997-12-30
FI971605A (fi) 1997-04-16
WO1996011299A1 (en) 1996-04-18
AU3712195A (en) 1996-05-02
EP0784721A1 (en) 1997-07-23
JPH10506964A (ja) 1998-07-07
NO971504D0 (no) 1997-04-03

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Legal Events

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