WO1998001395A1 - Oil/grease separator - Google Patents
Oil/grease separator Download PDFInfo
- Publication number
- WO1998001395A1 WO1998001395A1 PCT/NO1996/000163 NO9600163W WO9801395A1 WO 1998001395 A1 WO1998001395 A1 WO 1998001395A1 NO 9600163 W NO9600163 W NO 9600163W WO 9801395 A1 WO9801395 A1 WO 9801395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fat
- separator
- oil
- water
- sludge
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
- E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
Definitions
- the invention concerns a separator which is connected to waste water pipelines in order to separate oils and fat from waste water originating in large-scale catering establishments, kitchens, cafes, restaurants, kiosks, the food industry, slaughterhouses, dairies and from the processing industry, by means of gravitation alone.
- separators for oils and fat on the market to-day which work by means of gravitation alone without the use of chemicals, are constructed as illustrated in figure 1, with an inlet, two vertical baffle walls and an outlet.
- the level sensor will fail to give a signal due to congealed fat.
- a continuous fat separation is obtained with a high degree of separation. This is achieved by the fact that the light oils and fat are rapidly separated from the waste water in a surge chamber and float up to the surface.
- the heavier oil and fat particles are forced to pass a number of oblique baffle plates together with the waste water which oscillates in step with the oscillations on the water column in the surge chamber which occur when waste water is added to the tank and where the smallest fat particles will become attached to the baffle plates in the sedimentation chamber and build up to larger beads of fat which quickly float to the surface when they become free of the baffle plates.
- the heaviest oil and fat particles have a long water route at low speed which helps to provide a high degree of separation and waste water free of fat.
- sludge with greater density than the added waste water will settle in the separator's sludge trap. Finer sludge particles with a density which is slightly higher than the density of the waste water will settle on the baffle plates and be passed down to the sludge trap.
- the separator according to the invention is equipped with a valve for automatic drainage of the sludge trap.
- the separator according to the invention is equipped with a fill valve for the automatic addition of supply water in order to compensate for drainage water from the sludge trap.
- valves are controlled automatically for opening and closing by means of a time clock.
- a number of tests have been conducted with the new separator for oil and fat with variable loads and amounts of fat. The results of these tests are clear and unambiguous and document in full the above functional description with a continuous high degree of efficiency.
- the separator for oil and fat according to the invention which provides continuous fat separation can thereby be built smaller than to-day's separators and nevertheless achieve a higher and better degree of efficiency.
- the congealing with associated clogging of fat in the separator according to the invention is eliminated by supplying heat to the separator via a thermostatically controlled immersion heater/hot water coil or similar device and thereby ensuring a specific temperature in the separated volume of fat in the separator.
- the height of the liquid in the tank will rise and according to the invention the liquid oil/fat volume will be drained via a fat overflow to a separate collecting tank which is located in such a manner that it receives heat from the separator and thereby keeps the drained oil/fat volume in liquid form.
- a light/sound signal is automatically transmitted to a personnel-serviced area.
- oils and fat from the separator free of water, cause very little concern from an environmental point of view since they can be simply and advantageously deposited for recycling, in contrast to to-day's problem of depositing them as special waste.
- the separator for oils and fat according to the invention will be more reasonably priced with regard to operation and maintenance than other separators.
- the separator for oil and fat according to the invention is illustrated in figure 2, where the waste water enters the inlet Bl and is passed down towards the bottom as a submerged inlet and is distributed in the mass of water when it hits the bottom, whereupon it is given a change of direction at bottom deflector plate B2, the aim of which is to flush the waste water up into the surge chamber B3, causing the waste water column to rise a little and to stand still for a moment due to pressure equalization between the surge chamber B3 and the sedimentation chamber B4, with the result that the lightest oil and drops of fat in the waste water column have climbed slightly in the surge chamber B3 and do not follow all the way down when the mass of water moves downward due to the equalization of pressure in the waste water column.
- the separated oil and fat volume will lie on the top of the mass of water in the sedimentation chamber B4 and the surge chamber B3 while the fat-free waste water is drained by being passed down to the bottom of the vertical discharge chamber B7 and subsequently passed up submerged pipe B8 and discharged from outlet B9.
- the separated oil and fat volume which is lying in the sedimentation chamber B4 will now, according to the invention, be drained via fat overflow B IO and passed down into the collecting tank B l 1 via the drainpipe B 12.
- the collecting tank Bl l is equipped with a level indicator B13 and connected to an alarm system B18.
- the immersion heater/heating coil B14 ensures that the floating oil and fat volume is kept in liquid form until it is drained by a new supply of waste water.
- the sludge which is collected in the bottom of the separator is passed out of the sludge flushing pipe B 15 via a time-controlled valve B 16.
- the supply water valve B 17 is opened by time delay in order to compensate for the drained waste water with hot water.
- the separator for oils and fat according to the invention can be formed in different shapes, e.g. a cube, a cylinder, a pyramid, an obelisk, a cone or a combination of these shapes.
- the separator for oils and fat according to the invention can be produced in all materials such as steel, plastic, concrete, aluminium etc., provided they are corrosion-proof against the oil and fatty acids concerned.
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO19952549A NO302118B1 (en) | 1995-06-26 | 1995-06-26 | Grease separator |
AU66331/96A AU6633196A (en) | 1995-06-26 | 1996-07-04 | Oil/grease separator |
DE69624271T DE69624271T2 (en) | 1995-06-26 | 1996-07-04 | OIL / GREASE |
DK96926028T DK0956269T3 (en) | 1995-06-26 | 1996-07-04 | Oil / grease trap |
PCT/NO1996/000163 WO1998001395A1 (en) | 1995-06-26 | 1996-07-04 | Oil/grease separator |
ES96926028T ES2184884T3 (en) | 1995-06-26 | 1996-07-04 | FAT AND OIL SEPARATOR. |
AT96926028T ATE225756T1 (en) | 1995-06-26 | 1996-07-04 | OIL/GREASE SEPARATOR |
PT96926028T PT956269E (en) | 1995-06-26 | 1996-07-04 | OIL / FAT SEPARATOR |
EP96926028A EP0956269B1 (en) | 1995-06-26 | 1996-07-04 | Oil/grease separator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO19952549A NO302118B1 (en) | 1995-06-26 | 1995-06-26 | Grease separator |
PCT/NO1996/000163 WO1998001395A1 (en) | 1995-06-26 | 1996-07-04 | Oil/grease separator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998001395A1 true WO1998001395A1 (en) | 1998-01-15 |
Family
ID=26648585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1996/000163 WO1998001395A1 (en) | 1995-06-26 | 1996-07-04 | Oil/grease separator |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0956269B1 (en) |
AT (1) | ATE225756T1 (en) |
AU (1) | AU6633196A (en) |
DE (1) | DE69624271T2 (en) |
DK (1) | DK0956269T3 (en) |
ES (1) | ES2184884T3 (en) |
NO (1) | NO302118B1 (en) |
PT (1) | PT956269E (en) |
WO (1) | WO1998001395A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10028209A1 (en) * | 2000-06-09 | 2001-12-20 | Wittmann Staedtereinigung Und | Apparatus for separating mixtures of fat and water comprises feed pipes which feed mixture into rotating sieves which retain fat particles and allow water through |
US6613733B1 (en) | 1999-04-27 | 2003-09-02 | The Procter & Gamble Company | Treating compositions comprising polysaccharides |
FR2848550A1 (en) * | 2002-12-16 | 2004-06-18 | Franceaux Sa | Separator for grease and light liquids, especially hydrocarbons, from surface water has chamber made in truncated pyramidal shape for convenient stacking |
GB2405818A (en) * | 2003-08-29 | 2005-03-16 | Kingspan Holdings | A waste treatment device |
EP1580167A1 (en) * | 2004-03-26 | 2005-09-28 | Aisin Seiki Kabushiki Kaisha | Drain water treatment system |
WO2010066266A1 (en) * | 2008-12-08 | 2010-06-17 | Statoil Asa | Skimming device |
US7780855B2 (en) | 2003-11-14 | 2010-08-24 | Eberly Christopher N | Method for pre-engineering a system for environmental control of storm water |
JP2014025240A (en) * | 2012-07-26 | 2014-02-06 | Kyoritsu Seiyaku Kk | Odor trap, grease interception system, and method for constructing grease interception system |
CN104801072A (en) * | 2015-04-07 | 2015-07-29 | 刘俊平 | Gravitational oil separating and dyeing tank for food residue liquid |
CN105327663A (en) * | 2015-11-18 | 2016-02-17 | 金沂蒙集团有限公司 | Esterification tower provided with efficient internal water division parts |
NL1040982B1 (en) * | 2014-10-03 | 2016-10-03 | Johanna Maria Van Vught Erna | Putvet purification. |
CN109092763A (en) * | 2018-08-06 | 2018-12-28 | 合肥银泉铸造有限责任公司 | A kind of Gear Processing gear cleaning device |
CN113476899A (en) * | 2021-07-27 | 2021-10-08 | 周德朝 | Simple oil-water quick separation device for kitchen |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO302118B1 (en) * | 1995-06-26 | 1998-01-26 | Terje Johan Myrhaug | Grease separator |
DE102011053103A1 (en) | 2010-09-02 | 2012-03-22 | G+R Technology Group Ag | DEVICE AND METHOD FOR OBTAINING OIL AND / OR FAT FROM OIL AND / OR FAT-CONTAINING WASTE WASTE |
WO2014067908A2 (en) | 2012-11-02 | 2014-05-08 | Robert Stöcklinger | Device and method for obtaining at least one pure substance from biological waste or biomass |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1563586A (en) * | 1976-02-19 | 1980-03-26 | Jong L De | Separating device to separate two liquids of different specific gravity |
NO142988B (en) * | 1974-08-14 | 1980-08-18 | Ballast Nedam Groep Nv | DEVICE FOR Separating Substances, Such as Oil, Fat, Blood, from a Fluid |
EP0048158A2 (en) * | 1980-09-17 | 1982-03-24 | Norman Wilfrid Purtell | Interceptor tank |
DE3441528C2 (en) * | 1984-11-14 | 1992-01-30 | Karl 8901 Welden De Wiedemann | |
DE4122172C2 (en) * | 1991-07-04 | 1994-08-18 | Ahrens & Bode Masch & App | Method and device for reprocessing aqueous cleaning solutions containing oil and fat by means of three-stage separation |
NO952549L (en) * | 1995-06-26 | 1996-12-27 | Terje Johan Myrhaug | Grease separator |
-
1995
- 1995-06-26 NO NO19952549A patent/NO302118B1/en not_active IP Right Cessation
-
1996
- 1996-07-04 WO PCT/NO1996/000163 patent/WO1998001395A1/en active IP Right Grant
- 1996-07-04 DE DE69624271T patent/DE69624271T2/en not_active Expired - Fee Related
- 1996-07-04 AT AT96926028T patent/ATE225756T1/en not_active IP Right Cessation
- 1996-07-04 DK DK96926028T patent/DK0956269T3/en active
- 1996-07-04 PT PT96926028T patent/PT956269E/en unknown
- 1996-07-04 ES ES96926028T patent/ES2184884T3/en not_active Expired - Lifetime
- 1996-07-04 EP EP96926028A patent/EP0956269B1/en not_active Expired - Lifetime
- 1996-07-04 AU AU66331/96A patent/AU6633196A/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO142988B (en) * | 1974-08-14 | 1980-08-18 | Ballast Nedam Groep Nv | DEVICE FOR Separating Substances, Such as Oil, Fat, Blood, from a Fluid |
GB1563586A (en) * | 1976-02-19 | 1980-03-26 | Jong L De | Separating device to separate two liquids of different specific gravity |
EP0048158A2 (en) * | 1980-09-17 | 1982-03-24 | Norman Wilfrid Purtell | Interceptor tank |
DE3441528C2 (en) * | 1984-11-14 | 1992-01-30 | Karl 8901 Welden De Wiedemann | |
DE4122172C2 (en) * | 1991-07-04 | 1994-08-18 | Ahrens & Bode Masch & App | Method and device for reprocessing aqueous cleaning solutions containing oil and fat by means of three-stage separation |
NO952549L (en) * | 1995-06-26 | 1996-12-27 | Terje Johan Myrhaug | Grease separator |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6613733B1 (en) | 1999-04-27 | 2003-09-02 | The Procter & Gamble Company | Treating compositions comprising polysaccharides |
DE10028209A1 (en) * | 2000-06-09 | 2001-12-20 | Wittmann Staedtereinigung Und | Apparatus for separating mixtures of fat and water comprises feed pipes which feed mixture into rotating sieves which retain fat particles and allow water through |
FR2848550A1 (en) * | 2002-12-16 | 2004-06-18 | Franceaux Sa | Separator for grease and light liquids, especially hydrocarbons, from surface water has chamber made in truncated pyramidal shape for convenient stacking |
EP1430939A1 (en) * | 2002-12-16 | 2004-06-23 | Franceaux S.A. | Greases and light liquids separator with stackable housing, and housing for the same. |
GB2405818B (en) * | 2003-08-29 | 2007-03-28 | Kingspan Holdings | A waste treatment system |
GB2405818A (en) * | 2003-08-29 | 2005-03-16 | Kingspan Holdings | A waste treatment device |
US7780855B2 (en) | 2003-11-14 | 2010-08-24 | Eberly Christopher N | Method for pre-engineering a system for environmental control of storm water |
EP1580167A1 (en) * | 2004-03-26 | 2005-09-28 | Aisin Seiki Kabushiki Kaisha | Drain water treatment system |
WO2010066266A1 (en) * | 2008-12-08 | 2010-06-17 | Statoil Asa | Skimming device |
JP2014025240A (en) * | 2012-07-26 | 2014-02-06 | Kyoritsu Seiyaku Kk | Odor trap, grease interception system, and method for constructing grease interception system |
NL1040982B1 (en) * | 2014-10-03 | 2016-10-03 | Johanna Maria Van Vught Erna | Putvet purification. |
CN104801072A (en) * | 2015-04-07 | 2015-07-29 | 刘俊平 | Gravitational oil separating and dyeing tank for food residue liquid |
CN105327663A (en) * | 2015-11-18 | 2016-02-17 | 金沂蒙集团有限公司 | Esterification tower provided with efficient internal water division parts |
CN109092763A (en) * | 2018-08-06 | 2018-12-28 | 合肥银泉铸造有限责任公司 | A kind of Gear Processing gear cleaning device |
CN113476899A (en) * | 2021-07-27 | 2021-10-08 | 周德朝 | Simple oil-water quick separation device for kitchen |
Also Published As
Publication number | Publication date |
---|---|
DK0956269T3 (en) | 2003-02-10 |
EP0956269A1 (en) | 1999-11-17 |
NO952549D0 (en) | 1995-06-26 |
ES2184884T3 (en) | 2003-04-16 |
DE69624271D1 (en) | 2002-11-14 |
NO952549L (en) | 1996-12-27 |
ATE225756T1 (en) | 2002-10-15 |
EP0956269B1 (en) | 2002-10-09 |
AU6633196A (en) | 1998-02-02 |
DE69624271T2 (en) | 2003-08-07 |
NO302118B1 (en) | 1998-01-26 |
PT956269E (en) | 2003-02-28 |
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