IT977422B - PROCEDURE FOR THE PURIFICATION OF WASTE WATER - Google Patents

PROCEDURE FOR THE PURIFICATION OF WASTE WATER

Info

Publication number: IT977422B
Authority: IT; Italy
Prior art keywords: purification; procedure; waste water; waste; water
Prior art date: 1972-02-22

Application number

IT4835673A

Other languages

Italian (it)

Original Assignee

Casco 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.)

1972-02-22

Filing date

1973-02-20

Publication date

1974-09-10

1973-02-20 Application filed by Casco Ab filed Critical Casco Ab

1974-09-10 Application granted granted Critical

1974-09-10 Publication of IT977422B publication Critical patent/IT977422B/en

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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- 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

Landscapes

Life Sciences & Earth Sciences (AREA)
Hydrology & Water Resources (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Water Supply & Treatment (AREA)
Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Separation Of Suspended Particles By Flocculating Agents (AREA)
Paper (AREA)

IT4835673A 1972-02-22 1973-02-20 PROCEDURE FOR THE PURIFICATION OF WASTE WATER IT977422B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE216672A SE357950B (en)	1972-02-22	1972-02-22

Publications (1)

Publication Number	Publication Date
IT977422B true IT977422B (en)	1974-09-10

Family

ID=20259471

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT4835673A IT977422B (en)	1972-02-22	1973-02-20	PROCEDURE FOR THE PURIFICATION OF WASTE WATER

Country Status (10)

Country	Link
JP (1)	JPS5225027B2 (en)
AT (1)	AT320544B (en)
CA (1)	CA1004782A (en)
DD (1)	DD101650A5 (en)
DE (1)	DE2308815C3 (en)
FI (1)	FI57245C (en)
FR (1)	FR2173166A1 (en)
IT (1)	IT977422B (en)
NO (1)	NO132275C (en)
SE (1)	SE357950B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE459925B (en) *	1987-12-23	1989-08-21	Boliden Ab	SEPARATION OF HARTS WORLD MASS DISPENSER
US5230808A (en) *	1991-06-17	1993-07-27	Nalco Canada Inc.	Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5173208A (en) *	1991-06-17	1992-12-22	Nalco Canada Inc.	Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5178770A (en) *	1991-07-12	1993-01-12	Nalco Canada Inc.	Method of treating bctmp/ctmp wastewater
WO1993015271A1 (en) *	1992-01-29	1993-08-05	Kemira Kemi Aktiebolag	Improved process for production of paper
SE500783C2 (en) *	1992-05-05	1994-09-05	Eka Nobel Ab	Ways to clean wood resin-containing process or wastewater
SE9303762L (en) *	1993-11-15	1995-05-16	Eka Nobel Ab	Ways to purify process water from pulp production
SE509777C2 (en)	1997-07-07	1999-03-08	Kemira Kemi Ab	Methods to improve retention in dewatering a cellulose fiber suspension using an agent comprising a phenol formaldehyde resin and a polyethylene oxide
GB9800497D0 (en) *	1998-01-09	1998-03-04	Allied Colloids Ltd	Dewatering of sludges

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3141816A (en) *	1960-07-27	1964-07-21	Nalco Chemical Co	Method of improving operational efficiency of white water recovery systems

1972
- 1972-02-22 SE SE216672A patent/SE357950B/xx unknown
1973
- 1973-02-07 FI FI36073A patent/FI57245C/en active
- 1973-02-20 IT IT4835673A patent/IT977422B/en active
- 1973-02-21 NO NO71773A patent/NO132275C/no unknown
- 1973-02-21 CA CA164,270A patent/CA1004782A/en not_active Expired
- 1973-02-21 DD DD16897673A patent/DD101650A5/xx unknown
- 1973-02-22 AT AT157773A patent/AT320544B/en not_active IP Right Cessation
- 1973-02-22 JP JP2072573A patent/JPS5225027B2/ja not_active Expired
- 1973-02-22 FR FR7306256A patent/FR2173166A1/en active Granted
- 1973-02-22 DE DE19732308815 patent/DE2308815C3/en not_active Expired

Also Published As

Publication number	Publication date
FR2173166B1 (en)	1976-11-05
AT320544B (en)	1975-02-10
FI57245B (en)	1980-03-31
FI57245C (en)	1980-07-10
FR2173166A1 (en)	1973-10-05
SE357950B (en)	1973-07-16
NO132275B (en)	1975-07-07
CA1004782A (en)	1977-02-01
JPS5225027B2 (en)	1977-07-05
JPS4898653A (en)	1973-12-14
NO132275C (en)	1975-10-15
DE2308815C3 (en)	1982-01-28
DE2308815B2 (en)	1981-03-19
DD101650A5 (en)	1973-11-12
DE2308815A1 (en)	1973-09-06

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