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FR2423449A1 - Procede d'elimination d'eau de boues residuaires desinfectees a la chaux - Google Patents

Procede d'elimination d'eau de boues residuaires desinfectees a la chaux

Info

Publication number
FR2423449A1
FR2423449A1 FR7909737A FR7909737A FR2423449A1 FR 2423449 A1 FR2423449 A1 FR 2423449A1 FR 7909737 A FR7909737 A FR 7909737A FR 7909737 A FR7909737 A FR 7909737A FR 2423449 A1 FR2423449 A1 FR 2423449A1
Authority
FR
France
Prior art keywords
disinfected
lime
elimination
waste sludge
sludge
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.)
Pending
Application number
FR7909737A
Other languages
English (en)
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
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2423449A1 publication Critical patent/FR2423449A1/fr
Pending 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/901—Specified land fill feature, e.g. prevention of ground water fouling

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)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

L'invention a pour objet un procédé de déshydratation de boues résiduaires désinfectées à la chaux utilisant un copolymère d'acrylamide et de chlorure de 3-(méthacrylamido)propyltriméthyl ammonium.
FR7909737A 1978-04-18 1979-04-18 Procede d'elimination d'eau de boues residuaires desinfectees a la chaux Pending FR2423449A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/897,474 US4160731A (en) 1978-04-18 1978-04-18 Process for dewatering sewage sludges disinfected with lime

Publications (1)

Publication Number Publication Date
FR2423449A1 true FR2423449A1 (fr) 1979-11-16

Family

ID=25407952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909737A Pending FR2423449A1 (fr) 1978-04-18 1979-04-18 Procede d'elimination d'eau de boues residuaires desinfectees a la chaux

Country Status (10)

Country Link
US (1) US4160731A (fr)
DD (1) DD142960A5 (fr)
DE (1) DE2914053A1 (fr)
FR (1) FR2423449A1 (fr)
HU (1) HU178415B (fr)
IT (1) IT1116481B (fr)
NL (1) NL7903041A (fr)
NO (1) NO791271L (fr)
SE (1) SE7903346L (fr)
ZA (1) ZA791550B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1196593A (fr) * 1981-12-18 1985-11-12 William C. Foshee Clarification de produits de liquefaction du charbon grace a des polymeres solubles dans l'eau et de masse moleculaire elevee, renfermant de faibles concentrations de fractionscationiques
US5028272A (en) * 1982-02-08 1991-07-02 Ashland Oil, Inc. Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor
BE900896A (nl) * 1984-10-25 1985-02-15 Neef Dirk De Werkwijze voor het konsolideren van afvalslib.
GB8512937D0 (en) * 1985-05-22 1985-06-26 Allied Colloids Ltd Water treatment
GB8519107D0 (en) * 1985-07-29 1985-09-04 Allied Colloids Ltd Flocculation process
US5534186A (en) * 1993-12-15 1996-07-09 Gel Sciences, Inc. Gel-based vapor extractor and methods
US5681481A (en) * 1995-05-18 1997-10-28 Rdp Company Process and apparatus for liquid sludge stabilization
GB0522039D0 (en) * 2005-10-28 2005-12-07 Thames Water Utilities Sludge treatment
DK2094613T3 (da) * 2006-11-14 2011-11-28 Lhoist Rech & Dev Sa Fremgangsmåde til behandling af slam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193787A1 (fr) * 1972-07-24 1974-02-22 Calgon Corp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943114A (en) * 1969-06-11 1976-03-09 The Lubrizol Corporation Polymers of N-aminoalkyl acrylamides
US3897333A (en) * 1971-02-24 1975-07-29 Allied Colloids Mfg Flocculating agents
US3752760A (en) * 1972-03-09 1973-08-14 Calgon Corp Silt removal
US4028238A (en) * 1975-11-03 1977-06-07 Dart Industries Inc. Treatment of municipal waste sludges

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193787A1 (fr) * 1972-07-24 1974-02-22 Calgon Corp

Also Published As

Publication number Publication date
DD142960A5 (de) 1980-07-23
HU178415B (en) 1982-05-28
DE2914053A1 (de) 1979-10-31
IT1116481B (it) 1986-02-10
SE7903346L (sv) 1979-10-19
ZA791550B (en) 1980-07-30
US4160731A (en) 1979-07-10
IT7948698A0 (it) 1979-04-11
NO791271L (no) 1979-10-19
NL7903041A (nl) 1979-10-22

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