FI793244A - Saett att behandla utslaepp fraon massablekning - Google Patents

Saett att behandla utslaepp fraon massablekning

Info

Publication number
FI793244A
FI793244A FI793244A FI793244A FI793244A FI 793244 A FI793244 A FI 793244A FI 793244 A FI793244 A FI 793244A FI 793244 A FI793244 A FI 793244A FI 793244 A FI793244 A FI 793244A
Authority
FI
Finland
Prior art keywords
utslaepp
massablekning
fraon
saett att
behandla
Prior art date
Application number
FI793244A
Other languages
English (en)
Other versions
FI65830B (fi
FI65830C (fi
Inventor
Inge Georg Maonsson
Original Assignee
Eka 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 Eka Ab filed Critical Eka Ab
Publication of FI793244A publication Critical patent/FI793244A/fi
Publication of FI65830B publication Critical patent/FI65830B/fi
Application granted granted Critical
Publication of FI65830C publication Critical patent/FI65830C/fi

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
    • D21C9/1026—Other features in bleaching processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B01D61/146—Ultrafiltration comprising multiple ultrafiltration steps
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • 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
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/08—Chlorine-containing liquid regeneration

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
FI793244A 1978-10-25 1979-10-19 Saett att behandla utslaepp fraon massablekning FI65830C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7811089A SE414411B (sv) 1978-10-25 1978-10-25 Sett att rena utslepp fran blekerier med ultrafiltrering
SE7811089 1978-10-25

Publications (3)

Publication Number Publication Date
FI793244A true FI793244A (fi) 1980-04-26
FI65830B FI65830B (fi) 1984-03-30
FI65830C FI65830C (fi) 1984-07-10

Family

ID=20336188

Family Applications (1)

Application Number Title Priority Date Filing Date
FI793244A FI65830C (fi) 1978-10-25 1979-10-19 Saett att behandla utslaepp fraon massablekning

Country Status (6)

Country Link
US (1) US4268350A (fi)
JP (1) JPS604758B2 (fi)
CA (1) CA1130023A (fi)
FI (1) FI65830C (fi)
NO (1) NO150955C (fi)
SE (1) SE414411B (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT377546B (de) * 1983-02-25 1985-03-25 Dieter J Becker Verfahren zur reinigung von bei der zellstoffherstellung, insbesondere bei der chlorbleiche von zellstoff, anfallenden abwaessern
AU619580B2 (en) * 1988-08-23 1992-01-30 Sappi Limited Elimination of bleach effluents
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351063A1 (fr) * 1976-05-12 1977-12-09 Rhone Poulenc Ind Traitement d'effluents de papeteries

Also Published As

Publication number Publication date
CA1130023A (en) 1982-08-17
NO150955B (no) 1984-10-08
US4268350A (en) 1981-05-19
JPS604758B2 (ja) 1985-02-06
FI65830B (fi) 1984-03-30
NO150955C (no) 1985-01-16
NO793415L (no) 1980-04-28
SE414411B (sv) 1980-07-28
JPS5559882A (en) 1980-05-06
FI65830C (fi) 1984-07-10
SE7811089L (fi) 1980-04-26

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: EKA AKTIEBOLAG