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

Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen

Info

Publication number: FI971605A0
Authority: FI; Finland
Prior art keywords: treating; alkaline wastewater; bleaching acid; wastewater separately; separately
Prior art date: 1994-10-05

Application number

FI971605A

Other languages

English (en)

Swedish (sv)

Other versions

FI971605A7 (fi

FI971605L (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.)

1994-10-05

Filing date

1995-10-03

Publication date

1997-04-16

1994-10-05 Priority claimed from SE9403372A external-priority patent/SE9403372L/xx

1995-06-14 Priority claimed from SE9502169A external-priority patent/SE9502169D0/xx

1995-10-03 Application filed by Eka Chemicals Ab filed Critical Eka Chemicals Ab

1997-04-16 Publication of FI971605A7 publication Critical patent/FI971605A7/fi

1997-04-16 Publication of FI971605A0 publication Critical patent/FI971605A0/fi

1997-04-16 Publication of FI971605L publication Critical patent/FI971605L/fi

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
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Hydrology & Water Resources (AREA)
Environmental & Geological Engineering (AREA)
Water Supply & Treatment (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Wood Science & Technology (AREA)
Water Treatment By Electricity Or Magnetism (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Paper (AREA)

FI971605A 1994-10-05 1995-10-03 Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen FI971605L (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 (3)

Publication Number	Publication Date
FI971605A7 FI971605A7 (fi)	1997-04-16
FI971605A0 true FI971605A0 (fi)	1997-04-16
FI971605L FI971605L (fi)	1997-04-16

Family

ID=26662147

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI971605A FI971605L (fi)	1994-10-05	1995-10-03	Menetelmä valkaisulaitoksen happamien ja alkalisten jätevirtojen käsittelemiseksi erikseen

Country Status (8)

Country	Link
EP (1)	EP0784721A1 (fi)
JP (1)	JPH10506964A (fi)
AU (1)	AU3712195A (fi)
BR (1)	BR9509188A (fi)
CA (1)	CA2201117A1 (fi)
FI (1)	FI971605L (fi)
NO (1)	NO971504D0 (fi)
WO (1)	WO1996011299A1 (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE9500732L (sv) *	1995-02-27	1996-08-28	Eka Chemicals Ab	Förfarande för behandling av vätskor
US5792315A (en) *	1995-02-27	1998-08-11	Eka Chemicals Ab	Purifying aqueous effluent from a pulp mill using electro chemical membrane device
EP0863113A1 (en) *	1997-03-07	1998-09-09	Akzo Nobel N.V.	Process for treating wastewater
AU6641498A (en)	1997-03-07	1998-09-22	Akzo Nobel N.V.	Process for treating wastewater
EP1230169B1 (en)	1999-11-02	2003-07-30	Shell Internationale Researchmaatschappij 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 (fi) *	1990-05-04	1992-03-25	Poeyry Jaakko & Co Oy	Foerfarande foer rening och aoterfoering av cellulosafabrikers blekeriavvatten.

1995
- 1995-10-03 BR BR9509188A patent/BR9509188A/pt not_active Application Discontinuation
- 1995-10-03 AU AU37121/95A patent/AU3712195A/en not_active Abandoned
- 1995-10-03 JP JP8512515A patent/JPH10506964A/ja active Pending
- 1995-10-03 EP EP95934908A patent/EP0784721A1/en not_active Ceased
- 1995-10-03 WO PCT/SE1995/001121 patent/WO1996011299A1/en not_active Ceased
- 1995-10-03 CA CA002201117A patent/CA2201117A1/en not_active Abandoned
- 1995-10-03 FI FI971605A patent/FI971605L/fi active IP Right Revival
1997
- 1997-04-03 NO NO971504A patent/NO971504D0/no unknown

Also Published As

Publication number	Publication date
WO1996011299A1 (en)	1996-04-18
NO971504L (no)	1997-04-03
NO971504D0 (no)	1997-04-03
CA2201117A1 (en)	1996-04-18
FI971605A7 (fi)	1997-04-16
AU3712195A (en)	1996-05-02
EP0784721A1 (en)	1997-07-23
BR9509188A (pt)	1997-12-30
FI971605L (fi)	1997-04-16
JPH10506964A (ja)	1998-07-07

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Legal Events

Date	Code	Title	Description
1997-07-03	NF	Re-establishment of lapsed right