FR2272954A1 - Removing finely divided oil from effluent water - by adding an inorg (hydr) oxide absorbing agent, then an acid or alkali to dissolve the absorbent and to liberate the oil in large particles - Google Patents

Removing finely divided oil from effluent water - by adding an inorg (hydr) oxide absorbing agent, then an acid or alkali to dissolve the absorbent and to liberate the oil in large particles

Info

Publication number
FR2272954A1
FR2272954A1 FR7516460A FR7516460A FR2272954A1 FR 2272954 A1 FR2272954 A1 FR 2272954A1 FR 7516460 A FR7516460 A FR 7516460A FR 7516460 A FR7516460 A FR 7516460A FR 2272954 A1 FR2272954 A1 FR 2272954A1
Authority
FR
France
Prior art keywords
oil
liberate
dissolve
alkali
acid
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.)
Withdrawn
Application number
FR7516460A
Other languages
French (fr)
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 JP5874774A external-priority patent/JPS5435418B2/ja
Priority claimed from JP11044074A external-priority patent/JPS5137886A/en
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2272954A1 publication Critical patent/FR2272954A1/en
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/045—Breaking emulsions with coalescers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/047—Breaking emulsions with separation aids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Lubricants (AREA)
  • Colloid Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Finely divided oil is removed from effluent water by (a) adding >=1 oxide or hydroxide of Ca, Mg, Al, Zn, Fe or Ti to adsorb and/or coagulate the oil, (b) adding >=1 acid or alkali as solvent to dissolve the adsorbent cpd. and to liberate the oil in the form of large particles and nc) removing the liberated oil from the effluent water. Can be used to treat effluent waters contg. oil in emulsion form stabilised with an anionic surface active agent.
FR7516460A 1974-05-27 1975-05-27 Removing finely divided oil from effluent water - by adding an inorg (hydr) oxide absorbing agent, then an acid or alkali to dissolve the absorbent and to liberate the oil in large particles Withdrawn FR2272954A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5874774A JPS5435418B2 (en) 1974-05-27 1974-05-27
JP11044074A JPS5137886A (en) 1974-09-27 1974-09-27 ABURAHOSHUZAI

Publications (1)

Publication Number Publication Date
FR2272954A1 true FR2272954A1 (en) 1975-12-26

Family

ID=26399767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516460A Withdrawn FR2272954A1 (en) 1974-05-27 1975-05-27 Removing finely divided oil from effluent water - by adding an inorg (hydr) oxide absorbing agent, then an acid or alkali to dissolve the absorbent and to liberate the oil in large particles

Country Status (7)

Country Link
CH (1) CH602495A5 (en)
DE (1) DE2522250A1 (en)
DK (1) DK230175A (en)
FR (1) FR2272954A1 (en)
IT (1) IT1038435B (en)
NL (1) NL7505945A (en)
SE (1) SE7505947L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102528A1 (en) * 1991-01-29 1992-07-30 Ernst Maier Fa Sepg. oil-water emulsions e.g air compressor condensates - using active carbon@ adsorption preceded by treatment with a cationic emulsion breaker
EP1035076A2 (en) * 1999-03-05 2000-09-13 Empresa de Transformaci n Agraria, S.A. (TRAGSA) Method for the treatment of water containing suspended or dissolved organic and/or inorganic matter by precipitation in situ of oxygenised compounds of titanium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102528A1 (en) * 1991-01-29 1992-07-30 Ernst Maier Fa Sepg. oil-water emulsions e.g air compressor condensates - using active carbon@ adsorption preceded by treatment with a cationic emulsion breaker
EP1035076A2 (en) * 1999-03-05 2000-09-13 Empresa de Transformaci n Agraria, S.A. (TRAGSA) Method for the treatment of water containing suspended or dissolved organic and/or inorganic matter by precipitation in situ of oxygenised compounds of titanium
EP1035076A3 (en) * 1999-03-05 2000-12-20 Empresa de Transformaci n Agraria, S.A. (TRAGSA) Method for the treatment of water containing suspended or dissolved organic and/or inorganic matter by precipitation in situ of oxygenised compounds of titanium
ES2159229A1 (en) * 1999-03-05 2001-09-16 Transformacion Agraria S A Tra Method for the treatment of water containing suspended or dissolved organic and/or inorganic matter by precipitation in situ of oxygenised compounds of titanium

Also Published As

Publication number Publication date
IT1038435B (en) 1979-11-20
SE7505947L (en) 1975-11-28
CH602495A5 (en) 1978-07-31
DE2522250A1 (en) 1975-12-18
NL7505945A (en) 1975-12-01
DK230175A (en) 1975-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse