NO960770L - Fremgangsmåte ved behandling av væsker - Google Patents

Fremgangsmåte ved behandling av væsker

Info

Publication number
NO960770L
NO960770L NO960770A NO960770A NO960770L NO 960770 L NO960770 L NO 960770L NO 960770 A NO960770 A NO 960770A NO 960770 A NO960770 A NO 960770A NO 960770 L NO960770 L NO 960770L
Authority
NO
Norway
Prior art keywords
effluent
purified
chamber
cell
electrical current
Prior art date
Application number
NO960770A
Other languages
English (en)
Other versions
NO960770D0 (no
Inventor
Johan Landfors
Christin Persson
Original Assignee
Eka Nobel 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 Nobel Ab filed Critical Eka Nobel Ab
Publication of NO960770D0 publication Critical patent/NO960770D0/no
Publication of NO960770L publication Critical patent/NO960770L/no

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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • 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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • 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)
    • 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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Urology & Nephrology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Oppfinnelsen vedrører en fremgangsmåte ved frem- stilling av masse fra et celluloseholdig utgangs- materiale, hvor et vandig prosessavløp renses for forurensende metallkationer. Fremgangsmåten omfat- ter at avløpet renses ved en elektrokjemisk mem- branbehandling i en elektrokjemisk membrananording omfattende en enhetscelle gjennom hvilken en elek- trisk strøm føres mellom en anodeside og en katode- side av cellen, idet cellen omfatter minst to ione- permeable membraner som seg i mellom danner minst ett kammer, hvilket avløp innmates til avløpsinn- matningskammeret i cellen, hvor avløpet renses ved at de forurensende metallkationer ved hjelp av den elektriske strøm, fjernes fra avløpet gjennom en kationselektiv membran på katodesiden av kammeret, og det rensede avløp trekkes fra kammeret. Det ren- sede avløp kan resirkuleres til massefremstillings- prosessen, eksempelvis som vaskevann.
NO960770A 1995-02-27 1996-02-26 Fremgangsmåte ved behandling av væsker NO960770L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9500732A SE9500732L (sv) 1995-02-27 1995-02-27 Förfarande för behandling av vätskor

Publications (2)

Publication Number Publication Date
NO960770D0 NO960770D0 (no) 1996-02-26
NO960770L true NO960770L (no) 1996-08-28

Family

ID=20397390

Family Applications (1)

Application Number Title Priority Date Filing Date
NO960770A NO960770L (no) 1995-02-27 1996-02-26 Fremgangsmåte ved behandling av væsker

Country Status (13)

Country Link
EP (1) EP0728863B1 (no)
JP (1) JPH08243358A (no)
CN (1) CN1143050A (no)
AT (1) ATE212392T1 (no)
AU (1) AU671945B1 (no)
BR (1) BR9600828A (no)
CA (1) CA2170096C (no)
DE (1) DE69618685D1 (no)
FI (1) FI960833A7 (no)
NO (1) NO960770L (no)
NZ (1) NZ286034A (no)
SE (1) SE9500732L (no)
ZA (1) ZA961557B (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507505C2 (sv) * 1996-10-04 1998-06-15 Sunds Defibrator Ind Ab Blekning av pappersmassa varvid en avskild vätskefas oxideras för inaktivering av komplexbundna metalljoner
JP5902707B2 (ja) * 2010-11-12 2016-04-13 エヴォクア ウォーター テクノロジーズ ピーティーイー リミテッド 電気浄化装置用セルスタックの作製方法
EP2707540B1 (en) * 2011-05-13 2016-07-13 Stora Enso Oyj Process for treating microfibrillated cellulose and microfibrillated cellulose treated according to the process
CN104556495B (zh) * 2013-10-23 2017-03-01 中国石油化工股份有限公司 1,3‑丙二醇发酵液脱盐树脂再生废液的处理方法
SE539887C2 (en) * 2014-10-03 2018-01-02 Stora Enso Oyj A method to purify lignin from Sulfur by using an electric field

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012637A2 (en) * 1989-03-15 1990-11-01 Pulp And Paper Research Institute Of Canada Electrodialytic water splitting process for the treatment of aqueous electrolytes
DE3929137C1 (no) * 1989-09-01 1991-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
SE9301161L (sv) * 1993-04-07 1994-10-08 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten
SE9303766L (sv) * 1993-11-15 1995-05-16 Eka Nobel Ab Förfarande för rening och återföring i kretslopp av lösningar
WO1996011299A1 (en) * 1994-10-05 1996-04-18 Eka Chemicals Ab A method for treating acid and alkaline waste streams from a bleach plant separately

Also Published As

Publication number Publication date
EP0728863A2 (en) 1996-08-28
NO960770D0 (no) 1996-02-26
NZ286034A (en) 1996-10-28
EP0728863B1 (en) 2002-01-23
CA2170096C (en) 2001-04-17
EP0728863A3 (en) 1998-03-04
BR9600828A (pt) 1997-12-23
SE9500732L (sv) 1996-08-28
ATE212392T1 (de) 2002-02-15
AU671945B1 (en) 1996-09-12
ZA961557B (en) 1996-09-02
DE69618685D1 (de) 2002-03-14
SE9500732D0 (sv) 1995-02-27
JPH08243358A (ja) 1996-09-24
CN1143050A (zh) 1997-02-19
FI960833A7 (fi) 1996-08-28
FI960833A0 (fi) 1996-02-23
CA2170096A1 (en) 1996-08-28

Similar Documents

Publication Publication Date Title
WO1998006483B1 (en) Method and apparatus for high efficiency reverse osmosis operation
MY120171A (en) Process and equipment for rejuvenation treatment of photoresist development waste
SE511003C2 (sv) Förfarande och apparat för framställning av svavelsyra och alkalimetallhydroxid
NO955168L (no) Elektrokjemisk fremgangsmåte og anordning for fremstilling av metallhydroksider og/eller metalloksidhydroksider
NO960770L (no) Fremgangsmåte ved behandling av væsker
WO1993020012A2 (en) Electrodialyzer and process for desalination
DE3566906D1 (en) Process for treating water and effluents by ultrafiltration and electrolysis, and apparatus therefor
AU2001237854A1 (en) Process and apparatus for removal and destruction of dissolved nitrate.
RU2076847C1 (ru) Устройство для получения моющих и дезинфицирующих растворов
NO975005L (no) FremgangsmÕte for fremstilling av en vandig natriumhydroksydl÷sning
CA2157394C (en) Process and installation for preparing cellulose waste lye
US5589053A (en) Electrolysis process for removal of caustic in hemicellulose caustic
JPH0558601A (ja) 硫酸塩の再生方法
US5725748A (en) Process and installation for treating cellulose waste lye
KR20030038621A (ko) 이온교환막전기탈염장치(Electrodeionzation, EDI)를이용한 솔비톨 용액의 탈염·정제방법
JP2001259665A (ja) ハイドロサルファイト製造廃液の処理方法
WO1997016380A9 (en) Removal of caustic in hemicellulose caustic
SU1723047A1 (ru) Способ очистки сточных вод от растворенных примесей
CN220194256U (zh) 维生素c溶液和硫酸钠固体的分离系统
RU2083670C1 (ru) Способ получения диффузионного сока
SU1726389A1 (ru) Способ обескремнивани воды
US5667668A (en) Electrolysis process for removal of caustic in hemicellulose caustic
SU1125001A1 (ru) Способ выделени серной кислоты из растворов
JPH08197093A (ja) 水処理方法及び装置
UA36280A (uk) Спосіб розділення боровмісних розчинів методом електродіалізу

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application