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 particlesInfo
- 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- Withdrawn
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.
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)
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 |
-
1975
- 1975-05-15 CH CH627475A patent/CH602495A5/xx not_active IP Right Cessation
- 1975-05-20 DE DE19752522250 patent/DE2522250A1/en active Pending
- 1975-05-21 NL NL7505945A patent/NL7505945A/en not_active Application Discontinuation
- 1975-05-23 IT IT23682/75A patent/IT1038435B/en active
- 1975-05-23 DK DK230175A patent/DK230175A/en unknown
- 1975-05-26 SE SE7505947A patent/SE7505947L/en unknown
- 1975-05-27 FR FR7516460A patent/FR2272954A1/en not_active Withdrawn
Cited By (4)
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 |
---|---|
NL7505945A (en) | 1975-12-01 |
DE2522250A1 (en) | 1975-12-18 |
IT1038435B (en) | 1979-11-20 |
SE7505947L (en) | 1975-11-28 |
CH602495A5 (en) | 1978-07-31 |
DK230175A (en) | 1975-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |