ZA941235B - Method of treating process water - Google Patents

Method of treating process water

Info

Publication number: ZA941235B
Authority: ZA; South Africa
Prior art keywords: process water; treating process; treating; water
Prior art date: 1993-04-07

Application number

ZA941235A

Inventor

Ulf Germgard

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

1994-02-23

Publication date

1994-09-20

1994-02-23 Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab

1994-09-20 Publication of ZA941235B publication Critical patent/ZA941235B/en

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
- D21C9/1005—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)

ZA941235A 1993-04-07 1994-02-23 Method of treating process water ZA941235B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE9301161A SE9301161L (en)	1993-04-07	1993-04-07	Process for treating process water

Publications (1)

Publication Number	Publication Date
ZA941235B true ZA941235B (en)	1994-09-20

Family

ID=20389509

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA941235A ZA941235B (en)	1993-04-07	1994-02-23	Method of treating process water

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)	FI954766A (en)
NO (1)	NO953993L (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
SG188873A1 (en) *	2008-12-19	2013-04-30	Xyleco Inc	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 comprehensively utilizing solid waste during soda recovery 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
DE58902905D1 (en) *	1989-04-28	1993-01-14	Siemens Ag	METHOD FOR REMOVING COPPER FROM WASTEWATER.
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 NZ NZ263264A patent/NZ263264A/en unknown
- 1994-02-17 EP EP94911328A patent/EP0693144A1/en not_active Ceased
- 1994-02-17 AU AU63876/94A patent/AU672501B2/en not_active Ceased
- 1994-02-17 WO PCT/SE1994/000130 patent/WO1994023122A1/en not_active Application Discontinuation
- 1994-02-17 CN CN94191676A patent/CN1120358A/en active Pending
- 1994-02-17 CA CA002160123A patent/CA2160123A1/en not_active Abandoned
- 1994-02-17 JP JP6521969A patent/JPH08508546A/en active Pending
- 1994-02-17 BR BR9406105A patent/BR9406105A/en not_active Application Discontinuation
- 1994-02-23 ZA ZA941235A patent/ZA941235B/en unknown
1995
- 1995-10-06 FI FI954766A patent/FI954766A/en unknown
- 1995-10-06 NO NO953993A patent/NO953993L/en unknown

Also Published As

Publication number	Publication date
AU6387694A (en)	1994-10-24
CN1120358A (en)	1996-04-10
CA2160123A1 (en)	1994-10-13
NO953993D0 (en)	1995-10-06
FI954766A0 (en)	1995-10-06
EP0693144A1 (en)	1996-01-24
FI954766A (en)	1995-10-06
NO953993L (en)	1995-10-06
JPH08508546A (en)	1996-09-10
SE9301161D0 (en)	1993-04-07
SE9301161L (en)	1994-10-08
BR9406105A (en)	1995-12-12
NZ263264A (en)	1996-08-27
WO1994023122A1 (en)	1994-10-13
AU672501B2 (en)	1996-10-03

Publication	Publication Date	Title
EP0771203A4 (en)	1998-09-09	Method of treating sweat-related conditions
PL305974A1 (en)	1995-02-20	Method of removing brine
GB2267508B (en)	1996-04-24	Water treatment method
HU9502565D0 (en)	1995-10-30	Method of treating solid waste
PL313859A1 (en)	1997-04-28	Water treating method and apparatus
PL327600A1 (en)	1998-12-21	Method of treating depressions
ZA941235B (en)	1994-09-20	Method of treating process water
ZA947751B (en)	1996-04-04	Method of treating septic shock using thymosin-alpha 1
GB9517933D0 (en)	1995-11-01	Method of treating laundry
EP0469443A3 (en)	1992-05-27	Method of treating waste
EP0429661A4 (en)	1991-12-11	Method of water treatment
GB9501400D0 (en)	1995-03-15	Method for treating water
GB9202196D0 (en)	1992-03-18	Method of treatment
PH30221A (en)	1997-02-05	Method of treating ketosis
GB9405107D0 (en)	1994-03-27	Water treatment process
ZA935691B (en)	1994-03-03	Method of treating process water.
IL123283A0 (en)	1998-09-24	Improved method of treating water
GB8929341D0 (en)	1990-02-28	Method of water treatment
ZA957162B (en)	1996-04-17	Method of treating water
GB9222845D0 (en)	1992-12-16	Method of treating acid waters
GB9201391D0 (en)	1992-03-11	Method of treatment
ZA912404B (en)	1992-01-29	Method of treating water
PL304950A1 (en)	1995-01-09	Method of treating industrial water
PL309176A1 (en)	1996-12-23	Method of treating water for industrial use
PL297900A1 (en)	1994-09-05	Method of treating surface waters