CA1085522A - Procede de clarification des eaux brutes - Google Patents

Procede de clarification des eaux brutes

Info

Publication number
CA1085522A
CA1085522A CA286,634A CA286634A CA1085522A CA 1085522 A CA1085522 A CA 1085522A CA 286634 A CA286634 A CA 286634A CA 1085522 A CA1085522 A CA 1085522A
Authority
CA
Canada
Prior art keywords
polymer
groups
water
modified
chemically
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
CA286,634A
Other languages
English (en)
Inventor
Anthony T. Coscia
Michael N.D. O'connor
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 US05/792,746 external-priority patent/US4137165A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of CA1085522A publication Critical patent/CA1085522A/fr
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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
CA286,634A 1976-10-26 1977-09-13 Procede de clarification des eaux brutes Expired CA1085522A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US73557776A 1976-10-26 1976-10-26
US05/792,746 US4137165A (en) 1976-10-26 1977-05-02 Process for clarifying raw water
US792,746 1977-05-02
US735,577 1991-07-25

Publications (1)

Publication Number Publication Date
CA1085522A true CA1085522A (fr) 1980-09-09

Family

ID=27112915

Family Applications (1)

Application Number Title Priority Date Filing Date
CA286,634A Expired CA1085522A (fr) 1976-10-26 1977-09-13 Procede de clarification des eaux brutes

Country Status (10)

Country Link
JP (1) JPS5389255A (fr)
AU (1) AU515197B2 (fr)
BR (1) BR7707091A (fr)
CA (1) CA1085522A (fr)
DE (1) DE2746102A1 (fr)
ES (1) ES463547A1 (fr)
FR (1) FR2369215A1 (fr)
GB (1) GB1588342A (fr)
IT (1) IT1090037B (fr)
NL (1) NL7711749A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8512937D0 (en) * 1985-05-22 1985-06-26 Allied Colloids Ltd Water treatment
JP2750525B2 (ja) * 1988-05-31 1998-05-13 三菱レイヨン株式会社 帯電防止剤の製造方法及びメタクリル樹脂組成物
US5178774A (en) * 1990-06-29 1993-01-12 Allied Colloids Limited Purification of aqueous liquor
US5627260A (en) * 1993-02-12 1997-05-06 Cytec Technology Corp. Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance
CN115784358B (zh) * 2022-11-28 2023-07-11 嘉兴沃特泰科环保科技股份有限公司 一种水回收系统用上浮助剂及其制备方法和应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805526A (en) * 1955-12-05 1958-12-10 Dow Chemical Co Method for clarifying water
US3367918A (en) * 1964-08-04 1968-02-06 Dow Chemical Co Polymeric amide-secondary dialkyl ammonium salt-paraformaldehyde flocculant composition and method
US3897333A (en) * 1971-02-24 1975-07-29 Allied Colloids Mfg Flocculating agents

Also Published As

Publication number Publication date
DE2746102A1 (de) 1978-04-27
AU515197B2 (en) 1981-03-19
FR2369215A1 (fr) 1978-05-26
ES463547A1 (es) 1979-10-16
IT1090037B (it) 1985-06-18
GB1588342A (en) 1981-04-23
BR7707091A (pt) 1978-08-01
NL7711749A (nl) 1978-04-28
JPS5389255A (en) 1978-08-05
AU2887177A (en) 1979-03-22

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Legal Events

Date Code Title Description
MKEX Expiry