FI954766L - Process water treatment method - Google Patents

Process water treatment method Download PDF

Info

Publication number: FI954766L
Authority: FI; Finland
Prior art keywords: water treatment; treatment method; process water; water; treatment
Prior art date: 1993-04-07

Application number

FI954766A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI954766A7 (en

FI954766A0 (en

Inventor

Ulf Germgaord

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.)

1993-04-07

Filing date

1994-02-17

Publication date

1995-10-06

1994-02-17 Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab

1995-10-06 Publication of FI954766A7 publication Critical patent/FI954766A7/en

1995-10-06 Publication of FI954766L publication Critical patent/FI954766L/en

1995-10-06 Publication of FI954766A0 publication Critical patent/FI954766A0/en

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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Removal Of Specific Substances (AREA)
Paper (AREA)
Treatment Of Water By Oxidation Or Reduction (AREA)
Physical Water Treatments (AREA)
Separation Using Semi-Permeable Membranes (AREA)

FI954766A 1993-04-07 1994-02-17 Process water treatment method FI954766A0 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9301161A SE9301161L (en)	1993-04-07	1993-04-07	Process for treating process water
PCT/SE1994/000130 WO1994023122A1 (en)	1993-04-07	1994-02-17	Method of treating process water

Publications (3)

Publication Number	Publication Date
FI954766A7 FI954766A7 (en)	1995-10-06
FI954766L true FI954766L (en)	1995-10-06
FI954766A0 FI954766A0 (en)	1995-10-06

Family

ID=20389509

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI954766A FI954766A0 (en)	1993-04-07	1994-02-17	Process water treatment method

Country Status (12)

Country	Link
EP (1)	EP0693144A1 (en)
JP (1)	JPH08508546A (en)
CN (1)	CN1120358A (en)
AU (1)	AU672501B2 (en)
BR (1)	BR9406105A (en)
CA (1)	CA2160123A1 (en)
FI (1)	FI954766A0 (en)
NO (1)	NO953993D0 (en)
NZ (1)	NZ263264A (en)
SE (1)	SE9301161L (en)
WO (1)	WO1994023122A1 (en)
ZA (1)	ZA941235B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE9301160L (en) *	1992-08-28	1994-03-01	Sunds Defibrator Ind Ab	Process for treating process water
SE504424C2 (en) *	1994-11-04	1997-02-10	Kvaerner Pulping Tech	Ways to precipitate transition metals and alkaline earth metals from bleaching liquids by adding alkaline liquid
SE9500732L (en) *	1995-02-27	1996-08-28	Eka Chemicals Ab	Procedure for the treatment of liquids
US5792315A (en) *	1995-02-27	1998-08-11	Eka Chemicals Ab	Purifying aqueous effluent from a pulp mill using electro chemical membrane device
SE9803384L (en)	1998-03-02	1999-09-03	Kemira Kemi Ab	Process for treating process water
CN102257072A (en) *	2008-12-19	2011-11-23	希乐克公司	Processing biomass
US20100263813A1 (en) *	2009-04-21	2010-10-21	Andritz Inc.	Green liquor pretreatment of lignocellulosic material
CN103180506A (en) *	2011-09-19	2013-06-26	北京沃特玛德环境技术股份有限公司	Method for Comprehensive Utilization of Alkali Recovery Solid Waste Residue in Papermaking Industry

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4684472A (en) *	1985-12-26	1987-08-04	Phillips Petroleum Company	Precipitation of waste chromium compounds utilizing an aqueous sulfide solution
ES2053858T3 (en) *	1989-04-28	1994-08-01	Siemens Ag	PROCEDURE FOR THE ELIMINATION OF COPPER FROM WASTE WATER.
US5120448A (en) *	1990-09-19	1992-06-09	Dorica Josesph G	Removal of aox frm bleach plant mill effluents by ph shift using the alkalinity/acidity sources available at the mill
EP0564443A1 (en) *	1992-03-15	1993-10-06	Kamyr, Inc.	Treatment of bleach plant filtrates

1993
- 1993-04-07 SE SE9301161A patent/SE9301161L/en not_active Application Discontinuation
1994
- 1994-02-17 FI FI954766A patent/FI954766A0/en unknown
- 1994-02-17 AU AU63876/94A patent/AU672501B2/en not_active Ceased
- 1994-02-17 CN CN94191676A patent/CN1120358A/en active Pending
- 1994-02-17 BR BR9406105A patent/BR9406105A/en not_active Application Discontinuation
- 1994-02-17 CA CA002160123A patent/CA2160123A1/en not_active Abandoned
- 1994-02-17 NZ NZ263264A patent/NZ263264A/en unknown
- 1994-02-17 WO PCT/SE1994/000130 patent/WO1994023122A1/en not_active Ceased
- 1994-02-17 JP JP6521969A patent/JPH08508546A/en active Pending
- 1994-02-17 EP EP94911328A patent/EP0693144A1/en not_active Ceased
- 1994-02-23 ZA ZA941235A patent/ZA941235B/en unknown
1995
- 1995-10-06 NO NO953993A patent/NO953993D0/en unknown

Also Published As

Publication number	Publication date
SE9301161D0 (en)	1993-04-07
BR9406105A (en)	1995-12-12
EP0693144A1 (en)	1996-01-24
FI954766A7 (en)	1995-10-06
AU6387694A (en)	1994-10-24
NO953993L (en)	1995-10-06
NO953993D0 (en)	1995-10-06
SE9301161L (en)	1994-10-08
ZA941235B (en)	1994-09-20
CA2160123A1 (en)	1994-10-13
FI954766A0 (en)	1995-10-06
WO1994023122A1 (en)	1994-10-13
NZ263264A (en)	1996-08-27
CN1120358A (en)	1996-04-10
JPH08508546A (en)	1996-09-10
AU672501B2 (en)	1996-10-03

Publication	Publication Date	Title
NO992237D0 (en)	1999-05-07	Water treatment Process
BG96705A (en)	1993-12-24	WASTEWATER TREATMENT METHOD
GB2267508B (en)	1996-04-24	Water treatment method
FI952996L (en)	1995-12-17	Waste treatment method
DE69612411D1 (en)	2001-05-17	Underwater treatment process and system
FI935922L (en)	1994-07-01	Method for treating wastewater
FI943555A7 (en)	1994-09-30	Method for treating sewage water
DE69414433D1 (en)	1998-12-17	Photographic treatment process
NO960243D0 (en)	1996-01-19	Water purification process and apparatus
BR9403799A (en)	1995-05-23	Water treatment method and apparatus
FI944236A7 (en)	1994-11-11	Migraine treatment method
DE69500952D1 (en)	1997-12-04	Brine treatment method
FI954766A0 (en)	1995-10-06	Process water treatment method
FI950882L (en)	1995-02-27	Method for treating process water
NO941014D0 (en)	1994-03-21	Soil Treatment Process
DE69423393D1 (en)	2000-04-20	Photographic treatment process
DK0535544T3 (en)	1996-07-08	Wastewater treatment process
FI902984A7 (en)	1990-12-15	Water treatment method
GB9516980D0 (en)	1995-10-18	Water treatment method
BR9600208A (en)	1997-10-07	Process for water treatment
FI960609A7 (en)	1996-02-09	Peroxide treatment method
FI961883A7 (en)	1996-05-03	Wastewater treatment method
DE69422946D1 (en)	2000-03-16	Photographic treatment process
FI961888A7 (en)	1996-05-13	Method for purifying pulping process water
GB9405107D0 (en)	1994-03-27	Water treatment process