CA987460A - Semi-chemical or chemical pulp mill bleach plant effluents purification process - Google Patents

Semi-chemical or chemical pulp mill bleach plant effluents purification process

Info

Publication number
CA987460A
CA987460A CA155,588A CA155588A CA987460A CA 987460 A CA987460 A CA 987460A CA 155588 A CA155588 A CA 155588A CA 987460 A CA987460 A CA 987460A
Authority
CA
Canada
Prior art keywords
chemical
semi
purification process
pulp mill
bleach plant
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
CA155,588A
Other languages
French (fr)
Other versions
CA155588S (en
Inventor
Jean C. Bourdelot
Paul Boulenger
Jean Bebin
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.)
Suez International SAS
Original Assignee
Degremont Societe Generale dEpuration de dAssainissement
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 Degremont Societe Generale dEpuration de dAssainissement filed Critical Degremont Societe Generale dEpuration de dAssainissement
Application granted granted Critical
Publication of CA987460A publication Critical patent/CA987460A/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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (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)
  • Paper (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)
CA155,588A 1971-11-03 1972-11-02 Semi-chemical or chemical pulp mill bleach plant effluents purification process Expired CA987460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7139326A FR2159560A5 (en) 1971-11-03 1971-11-03

Publications (1)

Publication Number Publication Date
CA987460A true CA987460A (en) 1976-04-20

Family

ID=9085214

Family Applications (1)

Application Number Title Priority Date Filing Date
CA155,588A Expired CA987460A (en) 1971-11-03 1972-11-02 Semi-chemical or chemical pulp mill bleach plant effluents purification process

Country Status (5)

Country Link
JP (1) JPS5539679B2 (en)
CA (1) CA987460A (en)
ES (1) ES408119A1 (en)
FR (1) FR2159560A5 (en)
GB (1) GB1354455A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50159143A (en) * 1974-06-13 1975-12-23
JPS51116058A (en) * 1975-04-04 1976-10-13 Toyo Pulp Kk Method of treating sludge released from pulp plants
JPS5844795B2 (en) * 1979-04-05 1983-10-05 工業技術院長 Sodium-based pulping method
JPS55137286A (en) * 1979-04-05 1980-10-25 Kogyo Gijutsuin Magnesium base pulping method
SE513460C2 (en) 1998-04-08 2000-09-18 Kemira Kemi Ab Treatment of filtrate in peroxide bleaching of pulp
SE516037C2 (en) * 2000-03-24 2001-11-12 Kemira Kemi Ab Purification of the bleaching filtrate before returning to the bleaching process
FI128252B (en) * 2015-11-04 2020-01-31 Kemira Oyj Method for optimising material recovery in a chemical pulping process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5339389A (en) * 1976-09-22 1978-04-11 Sumitomo Chem Co Ltd Preparation of polymer emulsion

Also Published As

Publication number Publication date
ES408119A1 (en) 1976-02-01
FR2159560A5 (en) 1973-06-22
GB1354455A (en) 1974-06-05
JPS5539679B2 (en) 1980-10-13
JPS4875802A (en) 1973-10-12

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