CA1004782A - Method for purifying waste water - Google Patents

Method for purifying waste water

Info

Publication number
CA1004782A
CA1004782A CA164,270A CA164270A CA1004782A CA 1004782 A CA1004782 A CA 1004782A CA 164270 A CA164270 A CA 164270A CA 1004782 A CA1004782 A CA 1004782A
Authority
CA
Canada
Prior art keywords
waste water
purifying waste
purifying
water
waste
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA164,270A
Other languages
English (en)
Other versions
CA164270S (en
Inventor
Helge Storstrom
Gert W.L. Eselbock
Einar S. Hecktor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casco AB
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.)
Filing date
Publication date
Application filed by Casco AB filed Critical Casco AB
Application granted granted Critical
Publication of CA1004782A publication Critical patent/CA1004782A/en
Expired legal-status Critical Current

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)
CA164,270A 1972-02-22 1973-02-21 Method for purifying waste water Expired CA1004782A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1004782A true CA1004782A (en) 1977-02-01

Family

ID=20259471

Family Applications (1)

Application Number Title Priority Date Filing Date
CA164,270A Expired CA1004782A (en) 1972-02-22 1973-02-21 Method for purifying waste water

Country Status (10)

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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5230808A (en) * 1991-06-17 1993-07-27 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5354479A (en) * 1992-05-05 1994-10-11 Eka Nobel Ab Method for purifying process water or wastewater containing wood resin
US5437791A (en) * 1993-11-15 1995-08-01 Eka Nobel Ab Method for purifying process water from pulp manufacture
US5670021A (en) * 1992-01-29 1997-09-23 Kemira Kemi Aktiebolag Process for production of paper
US6123856A (en) * 1998-01-09 2000-09-26 Ciba Specialty Chemicals Water Treatments Limited Dewatering of sludges
US6306256B1 (en) 1997-07-07 2001-10-23 Kemira Kemi Ab Retention agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459925B (sv) * 1987-12-23 1989-08-21 Boliden Ab Avskiljning av harts ur massaavlutar

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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173208A (en) * 1991-06-17 1992-12-22 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5230808A (en) * 1991-06-17 1993-07-27 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5342538A (en) * 1991-06-17 1994-08-30 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
US5670021A (en) * 1992-01-29 1997-09-23 Kemira Kemi Aktiebolag Process for production of paper
US5354479A (en) * 1992-05-05 1994-10-11 Eka Nobel Ab Method for purifying process water or wastewater containing wood resin
US5437791A (en) * 1993-11-15 1995-08-01 Eka Nobel Ab Method for purifying process water from pulp manufacture
US6306256B1 (en) 1997-07-07 2001-10-23 Kemira Kemi Ab Retention agent
US6123856A (en) * 1998-01-09 2000-09-26 Ciba Specialty Chemicals Water Treatments Limited Dewatering of sludges

Also Published As

Publication number Publication date
FI57245B (fi) 1980-03-31
AT320544B (de) 1975-02-10
DE2308815A1 (de) 1973-09-06
DE2308815B2 (de) 1981-03-19
DE2308815C3 (de) 1982-01-28
FR2173166A1 (en) 1973-10-05
SE357950B (fr) 1973-07-16
NO132275C (fr) 1975-10-15
FR2173166B1 (fr) 1976-11-05
DD101650A5 (fr) 1973-11-12
NO132275B (fr) 1975-07-07
JPS5225027B2 (fr) 1977-07-05
FI57245C (fi) 1980-07-10
IT977422B (it) 1974-09-10
JPS4898653A (fr) 1973-12-14

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