FI950882A0 - Metod för behandling av processvatten - Google Patents

Metod för behandling av processvatten

Info

Publication number
FI950882A0
FI950882A0 FI950882A FI950882A FI950882A0 FI 950882 A0 FI950882 A0 FI 950882A0 FI 950882 A FI950882 A FI 950882A FI 950882 A FI950882 A FI 950882A FI 950882 A0 FI950882 A0 FI 950882A0
Authority
FI
Finland
Prior art keywords
process water
treating process
metal ions
pulp
treating
Prior art date
Application number
FI950882A
Other languages
English (en)
Finnish (fi)
Other versions
FI950882A (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
Priority claimed from SE9202464A external-priority patent/SE500052C2/sv
Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Publication of FI950882A publication Critical patent/FI950882A/sv
Publication of FI950882A0 publication Critical patent/FI950882A0/sv

Links

Classifications

    • 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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • 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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • 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
FI950882A 1992-08-28 1995-02-27 Metod för behandling av processvatten FI950882A0 (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9202464A SE500052C2 (sv) 1992-08-28 1992-08-28 Behandling av processvatten från blekning av massa innehållande metalljoner
SE9301160A SE9301160L (sv) 1992-08-28 1993-04-07 Förfarande för behandling av processvatten
PCT/SE1993/000660 WO1994005850A1 (en) 1992-08-28 1993-08-11 Method of treating process water

Publications (2)

Publication Number Publication Date
FI950882A FI950882A (sv) 1995-02-27
FI950882A0 true FI950882A0 (sv) 1995-02-27

Family

ID=26661508

Family Applications (1)

Application Number Title Priority Date Filing Date
FI950882A FI950882A0 (sv) 1992-08-28 1995-02-27 Metod för behandling av processvatten

Country Status (14)

Country Link
US (1) US5741398A (sv)
EP (1) EP0656966B1 (sv)
JP (1) JPH08500645A (sv)
CN (1) CN1089578A (sv)
AT (1) ATE151825T1 (sv)
AU (1) AU665461B2 (sv)
BR (1) BR9306963A (sv)
CA (1) CA2139566A1 (sv)
DE (1) DE69309938T2 (sv)
ES (1) ES2100563T3 (sv)
FI (1) FI950882A0 (sv)
NZ (1) NZ255613A (sv)
SE (1) SE9301160L (sv)
WO (1) WO1994005850A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500113C2 (sv) 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
SE501985C2 (sv) * 1993-11-05 1995-07-03 Sunds Defibrator Ind Ab Förfarande för avskiljning av metalljoner från massa i samband med blekning av massan
SE504789C2 (sv) * 1994-02-21 1997-04-28 Kemira Kemi Ab Förfarande för tungmetalleliminering från bakvattensystem inom pappers- och pappersmassaindustrien
SE9503004L (sv) * 1995-08-30 1997-03-01 Sunds Defibrator Ind Ab Blekning av massa
AT402827B (de) * 1995-12-22 1997-09-25 Chemiefaser Lenzing Ag Celluloseformkörper und verfahren zu seiner herstellung
WO1998011295A1 (fr) * 1996-09-11 1998-03-19 Solvay Interox (Societe Anonyme) Procede de blanchiment de pate a papier
US6228215B1 (en) * 1998-04-06 2001-05-08 Hoffman Enviornmental Systems, Inc. Method for countercurrent treatment of slurries
CN106192517B (zh) * 2016-07-08 2018-01-16 华南理工大学 一种减少氧脱木素过程中草酸根形成的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
SE500783C2 (sv) * 1992-05-05 1994-09-05 Eka Nobel Ab Sätt att rena vedhartsinnehållande process- eller avloppsvatten
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
US5401362A (en) * 1993-03-24 1995-03-28 Kamyr, Inc. Control of metals and dissolved organics in the bleach plant
SE9301161L (sv) * 1993-04-07 1994-10-08 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten
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

Also Published As

Publication number Publication date
DE69309938D1 (de) 1997-05-22
FI950882A (sv) 1995-02-27
SE9301160L (sv) 1994-03-01
AU4987993A (en) 1994-03-29
US5741398A (en) 1998-04-21
BR9306963A (pt) 1999-01-12
NZ255613A (en) 1995-10-26
CA2139566A1 (en) 1994-03-17
DE69309938T2 (de) 1997-11-06
ATE151825T1 (de) 1997-05-15
JPH08500645A (ja) 1996-01-23
SE9301160D0 (sv) 1993-04-07
AU665461B2 (en) 1996-01-04
WO1994005850A1 (en) 1994-03-17
EP0656966A1 (en) 1995-06-14
CN1089578A (zh) 1994-07-20
EP0656966B1 (en) 1997-04-16
ES2100563T3 (es) 1997-06-16

Similar Documents

Publication Publication Date Title
FI854351A (fi) Metod foer rening av ett permeabelt underjordiskt objekt.
SE9503595L (sv) Förfarande för behandling av cellulosamassor
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
FI950882A0 (sv) Metod för behandling av processvatten
DE69420306D1 (de) Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff
FI881544A0 (sv) Förfarande för blekning av mekanisk massa
NO177607C (no) Fremgangsmåte for å nedsette mengden av organiske halogenforbindelser i bakvann
DE69111098D1 (de) Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
SE9301161D0 (sv) Foerfarande foer behandling av processvatten
ES8800340A1 (es) Procedimiento de obtencion de una solucion acuosa de lavado para blanquear materiales textiles en agua.
ES2038954A6 (es) Metodo para blanquear pasta de papel.
NO302187B1 (no) Fremgangsmåte ved behandling av en cellulosemasse
SE9303066D0 (sv) Blekning av kemisk massa
FI934705A0 (fi) Foerfarande foer blekning av lignocellulosahaltig massa
TH18059EX (th) วิธีการบำบัดน้ำจากกรรมวิธี
SE9202464L (sv) Behandling av processvatten från blekning av massa innehållande metalljoner
SE9501623D0 (sv) Blekning av massa
SE9403396D0 (sv) Blekning av massa
SE9300277L (sv) Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare
TH18059A (th) วิธีการบำบัดน้ำจากกรรมวิธี
SE9603630D0 (sv) Förfarande för blekning av massa
SE8902058L (sv) Foerfarande vid blekning av lignocellulosa- haltigt material
FI944350A (sv) Förfarande för enzymatisk behandling av kemisk massa före blekning
NO951464D0 (no) Fremgangsmåte til behandling av sulfittmasse för bleking med oksygenholdige kjemikalier