FI884074A7 - Method for purifying wastewater - Google Patents

Method for purifying wastewater Download PDF

Info

Publication number: FI884074A7
Authority: FI; Finland
Prior art keywords: purifying wastewater; wastewater; purifying
Prior art date: 1988-09-05

Application number

FI884074A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI884074A0 (en

FI884074L (en

Inventor

Johan Lindberg

Marja-Liisa Riekkola

Kari Holopainen

Olli Kivekäs

Henryk Struszczyk

Original Assignee

Firextra Oy

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.)

1988-09-05

Filing date

1988-09-05

Publication date

1990-03-06

1988-09-05 Application filed by Firextra Oy filed Critical Firextra Oy

1988-09-05 Priority to FI884074A priority Critical patent/FI884074L/en

1988-09-05 Publication of FI884074A0 publication Critical patent/FI884074A0/en

1989-09-05 Priority to PCT/FI1989/000166 priority patent/WO1990002708A1/en

1989-09-05 Priority to AU41978/89A priority patent/AU4197889A/en

1990-03-06 Publication of FI884074A7 publication Critical patent/FI884074A7/en

1990-03-06 Publication of FI884074L publication Critical patent/FI884074L/en

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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Hydrology & Water Resources (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Water Supply & Treatment (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Separation Of Suspended Particles By Flocculating Agents (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)

FI884074A 1988-09-05 1988-09-05 FOERFARANDE FOER RENING AV AVLOPPSVATTEN. FI884074L (en)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
FI884074A FI884074L (en)	1988-09-05	1988-09-05	FOERFARANDE FOER RENING AV AVLOPPSVATTEN.
PCT/FI1989/000166 WO1990002708A1 (en)	1988-09-05	1989-09-05	Method for purification of waste aqueous medium
AU41978/89A AU4197889A (en)	1988-09-05	1989-09-05	Method for purification of waste aqueous medium

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI884074A FI884074L (en)	1988-09-05	1988-09-05	FOERFARANDE FOER RENING AV AVLOPPSVATTEN.

Publications (3)

Publication Number	Publication Date
FI884074A0 FI884074A0 (en)	1988-09-05
FI884074A7 true FI884074A7 (en)	1990-03-06
FI884074L FI884074L (en)	1990-03-06

Family

ID=8526998

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI884074A FI884074L (en)	1988-09-05	1988-09-05	FOERFARANDE FOER RENING AV AVLOPPSVATTEN.

Country Status (3)

Country	Link
AU (1)	AU4197889A (en)
FI (1)	FI884074L (en)
WO (1)	WO1990002708A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5336415A (en) *	1993-02-10	1994-08-09	Vanson L.P.	Removing polyvalent metals from aqueous waste streams with chitosan and halogenating agents
US5393435A (en) *	1993-09-17	1995-02-28	Vanson L.P.	Removal of organic contaminants from aqueous media
FR2744930B1 (en) *	1996-02-15	1998-03-13	Commissariat Energie Atomique	PROCESS FOR SEPARATING AT LEAST ONE METAL PRESENT IN A SOLUTION BY FIXING ON A CHITOSANE
RU2154033C1 (en) *	1999-02-23	2000-08-10	Нижегородский государственный технический университет	Method of removing multivalent metal ions from acid aqueous media
WO2004071961A2 (en) *	2003-02-13	2004-08-26	White, Duncan, Rohan	Water filter device and method
CN119490257A (en) *	2024-11-20	2025-02-21	宁波数字孪生(东方理工)研究院	A method for removing hexavalent chromium from water

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3533940A (en) *	1967-06-02	1970-10-13	Quintin P Peniston	Method for treating an aqueous medium with chitosan and derivatives of chitin to remove an impurity
IT1027501B (en) *	1968-12-06	1978-12-20	Muzzarelli Weckx M G F	CHITIN CHITOSAN AND DERIVATIVES USED AS CHROMATOGRAPHIC SUPPORTS AND AS ADSORBENTS FOR THE COLLECTION OF IONS FROM WATER AND ORGANIC SOLUTIONS FROM DRINKING AND SEA WATER
PL125995B2 (en) *	1981-02-27	1983-06-30		Process for preparing chitosan of enlarged internal surface
IT1190380B (en) *	1985-06-21	1988-02-16	Consiglio Nazionale Ricerche	FUNCTIONALIZED AND CROSSLINED GLUCANS, PREPARATION PROCESS AND INTERMEDIATES, THEIR USES
FI77681C (en) *	1986-08-18	1989-04-10	Firextra Oy	Chitosan products, in particular films, and processes for their preparation.

1988
- 1988-09-05 FI FI884074A patent/FI884074L/en not_active Application Discontinuation
1989
- 1989-09-05 AU AU41978/89A patent/AU4197889A/en not_active Abandoned
- 1989-09-05 WO PCT/FI1989/000166 patent/WO1990002708A1/en not_active Ceased

Also Published As

Publication number	Publication date
FI884074A0 (en)	1988-09-05
FI884074L (en)	1990-03-06
WO1990002708A1 (en)	1990-03-22
AU4197889A (en)	1990-04-02

Similar Documents

Publication	Publication Date	Title
FI955915L (en)	1995-12-08	Method for purifying sulfide-containing wastewater
FI954423L (en)	1995-09-19	Method for purifying taxioids
DE68904598D1 (en)	1993-03-11	WASTEWATER TREATMENT METHOD.
FI892251A7 (en)	1989-11-14	Method for purifying polydextrose by reverse osmosis
FI935922A7 (en)	1994-07-01	Method for treating wastewater
FI863954A7 (en)	1986-09-30	Method for purifying antihemophilic factor.
FI850448A7 (en)	1985-08-04	Method and apparatus for purifying wastewater and other waste.
KR870700575A (en)	1987-12-30	Wastewater activated sludge treatment method
ATA220089A (en)	1993-03-15	WASTEWATER PLANT
FI20011189L (en)	2001-06-05	Method for purifying polyactides and polyactides purified by the method
FI921579A7 (en)	1992-04-09	Method for purifying chelating agent-linked compounds
FI944631L (en)	1996-04-05	Method for purifying wastewater
FI890069A7 (en)	1989-01-06	Method for purifying wastewater
FI864205A7 (en)	1986-10-17	A method for biologically treating wastewater.
FI925506L (en)	1994-06-05	Method for purifying wastewater
FI923545A7 (en)	1992-08-06	Method for purifying water
FI900541A7 (en)	1990-02-02	Sludge filtration device
FI915164A7 (en)	1992-05-02	Improved method for purifying acetaminophen
FI884074A7 (en)	1990-03-06	Method for purifying wastewater
FI881218A7 (en)	1988-03-15	Purification method for 3-chloro-2-hydroxypropyltrialkylammonium chloride
ATA4490A (en)	1992-12-15	WASTEWATER PURIFICATION DEVICE
FI921885A7 (en)	1992-10-30	Method for purifying heparin
FI103107B1 (en)	1999-04-30	Method for purifying waste water
IT9020479A0 (en)	1990-05-30	purification
FI942834L (en)	1994-06-15	Method for purifying gases

Legal Events

Date	Code	Title	Description
2004-08-31	FC	Application refused	Owner name: FIREXTRA OY