FI770724A - - Google Patents

Info

Publication number
FI770724A
FI770724A FI770724A FI770724A FI770724A FI 770724 A FI770724 A FI 770724A FI 770724 A FI770724 A FI 770724A FI 770724 A FI770724 A FI 770724A FI 770724 A FI770724 A FI 770724A
Authority
FI
Finland
Application number
FI770724A
Other versions
FI66216C (fi
FI66216B (fi
Inventor
Henry A Fremont
Original Assignee
Champion Int Corp
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 Champion Int Corp filed Critical Champion Int Corp
Publication of FI770724A publication Critical patent/FI770724A/fi
Application granted granted Critical
Publication of FI66216B publication Critical patent/FI66216B/fi
Publication of FI66216C publication Critical patent/FI66216C/fi

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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration

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 Using Semi-Permeable Membranes (AREA)
  • Treatment Of Sludge (AREA)
FI770724A 1976-03-15 1977-03-07 Faergavlaegsningsfoerfarande FI66216C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/666,917 US4226673A (en) 1976-03-15 1976-03-15 Color removal from paper and pulp mill aqueous effluents
US66691776 1976-03-15

Publications (3)

Publication Number Publication Date
FI770724A true FI770724A (fi) 1977-09-16
FI66216B FI66216B (fi) 1984-05-31
FI66216C FI66216C (fi) 1984-09-10

Family

ID=24676042

Family Applications (1)

Application Number Title Priority Date Filing Date
FI770724A FI66216C (fi) 1976-03-15 1977-03-07 Faergavlaegsningsfoerfarande

Country Status (7)

Country Link
US (1) US4226673A (fi)
JP (1) JPS52111890A (fi)
CA (1) CA1094956A (fi)
DE (1) DE2711072C2 (fi)
FI (1) FI66216C (fi)
GB (1) GB1523577A (fi)
SE (1) SE438099B (fi)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117267B (en) * 1982-02-24 1985-09-25 John Gilmour Manuel Ultrafiltration of fermentation effluent
JPS59115704A (ja) * 1982-12-24 1984-07-04 Toray Ind Inc 半透膜の処理法
US4584057A (en) * 1985-04-22 1986-04-22 The United States Of America As Represented By The Secretary Of Agriculture Membrane processes for separation of organic acids from kraft black liquors
CH668961A5 (de) * 1986-02-07 1989-02-15 Ciba Geigy Ag Verfahren zur reinigung von farbstoffhaltigen abwaessern.
US4814082A (en) * 1986-10-20 1989-03-21 Memtec North America Corporation Ultrafiltration thin film membranes
US4874521A (en) * 1988-10-18 1989-10-17 Boise Cascade Corporation Pulp mill effluent color removal process
US5032286A (en) * 1988-10-18 1991-07-16 Boise Cascade Corporation Pulp mill effluent color removal process
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
NZ242792A (en) * 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
DE4126976C1 (fi) * 1991-08-14 1993-01-07 Kuenkel-Wagner Gmbh & Co Kg, 3220 Alfeld, De
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US6752903B2 (en) * 2001-07-27 2004-06-22 Craig A. Bianchini Method for mitigating the interference caused by high-molecular weight by-products in pulping processes
US10519050B2 (en) * 2017-07-28 2019-12-31 Frito-Lay North America, Inc. Method for fryer stack recovery and treatment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551244A (en) * 1968-04-03 1970-12-29 North Star Research & Dev Inst Method of producing an ultrathin polymer film laminate
US3808305A (en) * 1971-07-27 1974-04-30 H Gregor Crosslinked,interpolymer fixed-charge membranes
US3758405A (en) * 1971-11-03 1973-09-11 Plywood Champion Papers Inc Color removal from kraft mill aqueous effluents
IL43201A (en) * 1972-09-19 1976-11-30 North Star Res & Dev Reverse osmosis membrane and its preparation
US3977467A (en) * 1973-05-18 1976-08-31 Northrup Jr Leonard L Air conditioning module
US3951815A (en) * 1974-09-05 1976-04-20 Universal Oil Products Company Composite semipermeable membranes made from polyethylenimine

Also Published As

Publication number Publication date
CA1094956A (en) 1981-02-03
FI66216C (fi) 1984-09-10
SE438099B (sv) 1985-04-01
US4226673A (en) 1980-10-07
DE2711072C2 (de) 1986-11-13
JPS52111890A (en) 1977-09-19
JPS6136962B2 (fi) 1986-08-21
FI66216B (fi) 1984-05-31
GB1523577A (en) 1978-09-06
SE7702798L (sv) 1977-09-16
DE2711072A1 (de) 1977-09-29

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: CHAMPION INTERNATIONAL CORPORATION