CA2127687A1 - Methode d'extraction d'acides resiniques et d'acides gras toxiques presents dans les effluents d'usines de pates et papiers et d'autres effluents et cours d'eau - Google Patents

Methode d'extraction d'acides resiniques et d'acides gras toxiques presents dans les effluents d'usines de pates et papiers et d'autres effluents et cours d'eau

Info

Publication number
CA2127687A1
CA2127687A1 CA 2127687 CA2127687A CA2127687A1 CA 2127687 A1 CA2127687 A1 CA 2127687A1 CA 2127687 CA2127687 CA 2127687 CA 2127687 A CA2127687 A CA 2127687A CA 2127687 A1 CA2127687 A1 CA 2127687A1
Authority
CA
Canada
Prior art keywords
ppm
alginate
acid
cationic polymer
acids
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.)
Abandoned
Application number
CA 2127687
Other languages
English (en)
Inventor
Brian G. Roberts
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.)
Roberts B G Chemicals Inc
Original Assignee
Individual
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
Priority claimed from US08/069,548 external-priority patent/US5368742A/en
Application filed by Individual filed Critical Individual
Publication of CA2127687A1 publication Critical patent/CA2127687A1/fr
Abandoned 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
    • C02F1/56—Macromolecular compounds
    • 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
    • C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
    • 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

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)

Abstract

Le procédé décrit permet d'améliorer l'élimination des acides résiniques toxiques et des acides gras contenus dans les effluents et autres eaux résiduaires issus de la fabrication des papiers et pâtes à papier. En effet, avant clarification, l'adjonction d'une matière anionique (albumine, gélatine, alginate ou acide alginique), améliore l'élimination des acides résiniques toxiques et des acides gras, et ce, que l'on ait recours aux techniques de clarification classiques, à la technique plus récente de clarification par coagulation cationique, ou encore simplement à la technique de la rétention.
CA 2127687 1993-06-01 1994-05-30 Methode d'extraction d'acides resiniques et d'acides gras toxiques presents dans les effluents d'usines de pates et papiers et d'autres effluents et cours d'eau Abandoned CA2127687A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/069,548 1993-06-01
US08/069,548 US5368742A (en) 1993-06-01 1993-06-01 Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams
US9710693A 1993-07-26 1993-07-26
US08/097,106 1993-07-26

Publications (1)

Publication Number Publication Date
CA2127687A1 true CA2127687A1 (fr) 1994-12-02

Family

ID=26750189

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2127687 Abandoned CA2127687A1 (fr) 1993-06-01 1994-05-30 Methode d'extraction d'acides resiniques et d'acides gras toxiques presents dans les effluents d'usines de pates et papiers et d'autres effluents et cours d'eau

Country Status (2)

Country Link
CA (1) CA2127687A1 (fr)
WO (1) WO1994027916A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162445C1 (ru) * 2000-06-28 2001-01-27 Акционерное общество закрытого типа "К-СТ Интернейшнл" Способ очистки технологических вод
RU2349695C1 (ru) * 2008-01-23 2009-03-20 ОАО "Санкт-Петербургский картонно-полиграфический комбинат" Способ подготовки оборотной воды картонно-бумажного производства к повторному ее использованию

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219988A (ja) * 1982-06-15 1983-12-21 Nippon Solid Co Ltd 汚濁水の処理方法
JPS61238400A (ja) * 1985-04-16 1986-10-23 Hitachi Metals Ltd 有機性汚泥の脱水方法
JPS62289300A (ja) * 1986-06-09 1987-12-16 Toagosei Chem Ind Co Ltd 汚泥脱水剤
JPH02251294A (ja) * 1989-03-23 1990-10-09 Iseki Tory Tech Inc 泥水の処理方法

Also Published As

Publication number Publication date
WO1994027916A1 (fr) 1994-12-08

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Legal Events

Date Code Title Description
FZDE Dead