CA1083978A - Two-stage decanter - Google Patents
Two-stage decanterInfo
- Publication number
- CA1083978A CA1083978A CA233,380A CA233380A CA1083978A CA 1083978 A CA1083978 A CA 1083978A CA 233380 A CA233380 A CA 233380A CA 1083978 A CA1083978 A CA 1083978A
- Authority
- CA
- Canada
- Prior art keywords
- liquid
- separator
- tank
- purified
- space
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0045—Plurality of essentially parallel plates
-
- 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
-
- 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
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0057—Settling tanks provided with contact surfaces, e.g. baffles, particles with counter-current flow direction of liquid and solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/10—Settling tanks with multiple outlets for the separated liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2433—Discharge mechanisms for floating particles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Removal Of Floating Material (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- External Artificial Organs (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A baffled separator for mixed phase systems comprising two liquid phases is described wherein provision is made for the removal of solid or other matter that separates readily from the heavier of the two liquid phases.
A baffled separator for mixed phase systems comprising two liquid phases is described wherein provision is made for the removal of solid or other matter that separates readily from the heavier of the two liquid phases.
Description
- ~8397~
This invention relates to a separating or decanting device for separating substances from a liquid to be puri~ied, typically oily materials from water.
Various devices have been proposed to do this. United Kingdom Patent 308,752 provides an outlet in the ~ront part of such a separator ~or separating impurities from a liquid. Ihis patent also describes a separator including an inclined plate and brake plates provided in the inlet part of the separator so situated that heavier substances in the liquid sink to the bottom of the separator under the influence of gravity, and can then be discharged from the inlet part.
Similarly, United States Patent 2,613,811 provides a separator for two liquids in which the heavy liquid is separated in a separator, and then transmitted further through a drain provided underneath the separator.
The light liquid is discharged from the separator inlet cham~er.
Also in Canadian application 174,551 (now Canadian Patent 1,007,174) is described a separator comprising a tank with a separator including at least two parallel inclined plates, separated apart. The outlet for separated li~ht liquid, such as oil, is located at the upper end of the tank. An overflow is placed between the outlet for purified liquid and the separator. A space is also provided, bounded by the front wall of the tank and the ~irst plate of the separator, into which the incoming liquid is ~ed through the inlet to the separator, in order to eliminate turbulence in the liquid be~ore it enters into the separator.
A11 of these separator devices suffer from the disadvantage that, in particular, they are not able to discharge, pre~erably separately, sub-stances that either have separated from the liquid be~ore it enters the : . : : .:::;:: ,;:.. .. . :. . ~-- \
~839~78 separator, or that can be separated quite easily from the liquid when it enters the separator.
A separator has been described, in United Kingdom Patent 1,329,~75, which goes some way to alleviating this problem. A two-stage decanter is used, in which in a first stage the oil-water mixture is heated. Easily-removable oil particles are separated, and rise upwardly to a gathering area. The remaining mixture stream is then led downwardly into a counter flow plate separator, in which the separated oil travels upwardly against the downward flow of the liquid. The separated oil collects into the same gathering area.
However this apparatus has two serious disadvantages: it requires a com-paratively large space being very bulky, and, due to the counter-current flow system used together with a comparatively short plate length does not reach a high level of separating efficiency.
This invention seeks to overcome these problems, and to provide an efficient, compact, separator.
Thus, this invention pxovides for a separating device for separating substances from a liquid to be purified, said separating device comprising:
a tank having a bottom, and substantially vertical outer walls;
a substantially vertical inner dividing wall in the upper portion of the tank, extending from a point below normal liquid level to a point above normal liquid level, and dividing the upper portion of the tank into a first and a second liquid containing space;
an inlet in the outer wall o~ the tank, ~or the liquid to be purified, into the first liquid containing space;
a separator in the tank comprising at least two parallel inclined plates spaced from each other, one of the inclined plates comprising a down-ward extension of the inner dividing wall dividing the lower portion o~ the tank, and providing an under flow connecting the first liquid con-taining space ~ - 2 -,'`, Y
: \ ~083g7~ ;
:` ~
with the separator~ the inclined plates being so spaced and aligned that the separator extends beneath the second liquid containing space;
a first outlet from the second liquid containing space in the tank for the purified liquid;
an overflow between the second liquid containing space and the first outlet;
a second outlet from the second liquid containing space for sepa-rated light substances, the second outlet being at a point higher than the level of the overflowj a space for eliminatin~ substantially turbulence of the liquid to be purified before entering the separator comprising the lower portion of the first space, being bounded by the outer walls of the tank, the inner dividing wall, and the inclined separator plate comprising the downward extensio.n of the inner dividing wall, a third outlet from the first liguid containing space at a point higher than the inlet, for substances lighter than the purified liquid.
~he invention will be further explained with reference to the attached drawing. 1 Figure 1 is a separating device with a coalescing filter.
Figure 2 is a separating device as shown in Figure 1 wi-th a packet of plates.
~ he separaking de~ice according to Figure 1 consi~ts o:~ a tank with a front wall 1, a rear wall 2 and a bo-t-tom 3.
- 2a -~0133~7~
In this tank a coalescer or separator L~ is provided with parallel outer plates 5 and 6, of which plate 5 extends from a vertical partition 21 of -the tank and forms an angle ~ with -this partition and ends at some distance above the bottom 3. Plate 6 of the separator L~ extends upwardly ~rom the rear wall 2 or (not shown) from the bottom 3 of the tank, close to the wall
This invention relates to a separating or decanting device for separating substances from a liquid to be puri~ied, typically oily materials from water.
Various devices have been proposed to do this. United Kingdom Patent 308,752 provides an outlet in the ~ront part of such a separator ~or separating impurities from a liquid. Ihis patent also describes a separator including an inclined plate and brake plates provided in the inlet part of the separator so situated that heavier substances in the liquid sink to the bottom of the separator under the influence of gravity, and can then be discharged from the inlet part.
Similarly, United States Patent 2,613,811 provides a separator for two liquids in which the heavy liquid is separated in a separator, and then transmitted further through a drain provided underneath the separator.
The light liquid is discharged from the separator inlet cham~er.
Also in Canadian application 174,551 (now Canadian Patent 1,007,174) is described a separator comprising a tank with a separator including at least two parallel inclined plates, separated apart. The outlet for separated li~ht liquid, such as oil, is located at the upper end of the tank. An overflow is placed between the outlet for purified liquid and the separator. A space is also provided, bounded by the front wall of the tank and the ~irst plate of the separator, into which the incoming liquid is ~ed through the inlet to the separator, in order to eliminate turbulence in the liquid be~ore it enters into the separator.
A11 of these separator devices suffer from the disadvantage that, in particular, they are not able to discharge, pre~erably separately, sub-stances that either have separated from the liquid be~ore it enters the : . : : .:::;:: ,;:.. .. . :. . ~-- \
~839~78 separator, or that can be separated quite easily from the liquid when it enters the separator.
A separator has been described, in United Kingdom Patent 1,329,~75, which goes some way to alleviating this problem. A two-stage decanter is used, in which in a first stage the oil-water mixture is heated. Easily-removable oil particles are separated, and rise upwardly to a gathering area. The remaining mixture stream is then led downwardly into a counter flow plate separator, in which the separated oil travels upwardly against the downward flow of the liquid. The separated oil collects into the same gathering area.
However this apparatus has two serious disadvantages: it requires a com-paratively large space being very bulky, and, due to the counter-current flow system used together with a comparatively short plate length does not reach a high level of separating efficiency.
This invention seeks to overcome these problems, and to provide an efficient, compact, separator.
Thus, this invention pxovides for a separating device for separating substances from a liquid to be purified, said separating device comprising:
a tank having a bottom, and substantially vertical outer walls;
a substantially vertical inner dividing wall in the upper portion of the tank, extending from a point below normal liquid level to a point above normal liquid level, and dividing the upper portion of the tank into a first and a second liquid containing space;
an inlet in the outer wall o~ the tank, ~or the liquid to be purified, into the first liquid containing space;
a separator in the tank comprising at least two parallel inclined plates spaced from each other, one of the inclined plates comprising a down-ward extension of the inner dividing wall dividing the lower portion o~ the tank, and providing an under flow connecting the first liquid con-taining space ~ - 2 -,'`, Y
: \ ~083g7~ ;
:` ~
with the separator~ the inclined plates being so spaced and aligned that the separator extends beneath the second liquid containing space;
a first outlet from the second liquid containing space in the tank for the purified liquid;
an overflow between the second liquid containing space and the first outlet;
a second outlet from the second liquid containing space for sepa-rated light substances, the second outlet being at a point higher than the level of the overflowj a space for eliminatin~ substantially turbulence of the liquid to be purified before entering the separator comprising the lower portion of the first space, being bounded by the outer walls of the tank, the inner dividing wall, and the inclined separator plate comprising the downward extensio.n of the inner dividing wall, a third outlet from the first liguid containing space at a point higher than the inlet, for substances lighter than the purified liquid.
~he invention will be further explained with reference to the attached drawing. 1 Figure 1 is a separating device with a coalescing filter.
Figure 2 is a separating device as shown in Figure 1 wi-th a packet of plates.
~ he separaking de~ice according to Figure 1 consi~ts o:~ a tank with a front wall 1, a rear wall 2 and a bo-t-tom 3.
- 2a -~0133~7~
In this tank a coalescer or separator L~ is provided with parallel outer plates 5 and 6, of which plate 5 extends from a vertical partition 21 of -the tank and forms an angle ~ with -this partition and ends at some distance above the bottom 3. Plate 6 of the separator L~ extends upwardly ~rom the rear wall 2 or (not shown) from the bottom 3 of the tank, close to the wall
2, at the same angle ~ with the rear wall 2 as plate 5 with parti-tion 21 and terminates a-t some distance from the upper side of the tank, but above the ' lower extremity of plate 5.
Between plate 6 of the separator L~ and the wall 2 of the tank there is provided a vertical baffle 7 connected to the side walls of the tank and extending from the upper side of the tank terminating at some distance from the wall 6 of the separator 4. Between this baffle 7 and the wall 2 there is provided a second baf'fle 8, which extends from plate 6 of the separator 1~ and terminates at some distance under the upper side of the tank, but above the lower extremity of baffle 7.
In the space 9 between the front wall 1 of the tank and the partition 21 and plate 5 of the separator L~ opens a supply line 10 for -the liquid to be purified, whereas the purified liquid is discharged through line' 11, which is in communication with the space bounded by wall 2, plate 6 and baffle 8. To discharge the separated 1mpurities, such as oil, an outlet pipe 12 is provided. It is also possible to apply an adjustable ou-tlet pipe (skimmer). For the discharge of a light liquid fraction 23 from space 9, a discharge 22 is provided in a similar way.
Ihe liquid to be purified enters the device through line 10 and flows -through space 9, in which turbulence is eliminated completely or for the greater part and which is amply dimensioned in order to separate light liquids 23, such as petrol and petroleum, and flows at the lower side into the separator L~.
'`; 3 397~
:
The separation of the impurities that is more difficult, such as oil, gathers a-t the upper part of the -tank and are discharged th~ough pipe 12.
The purified liquid flows f`rom the upper side of the separator 4 underneath ba~fle 7 and over baffle 8, serving as an overflow, to line 11 ~here it is discharged. Arrows show the paths of the liquids. If desired, dependent on the material to be treated, it is possible to provide a coalescing filter 13 between the plates 5 and 6.
In figure 2, the parts corresponding to those of figure 1 are provided with the same references. In this figure is indicated that in order to increase the capacity, a packet consisting of spaced parallel plates 14 can be provided between the outer plates 5 and 6 of-the separator, in which the number of plates 14 and their mutual dis-tance can be chosen in connection with the required capacity of the oil separating device.
For the discharge of a heavier fraction 27 from both the space 9, from the separator 4 and through the passages 26, and from the space past the separator by means of` the~o~erflow 7 and 8, the bottom 25 of the tank is of a recessed construction so that a collecting chamber 28 is formed.
The heavier fraction 27 collected in this collecting chamber 28 can be discharged through outlet 24.
~he capacity and the power to separa-te of the device can be varied by varying -the number of plates of the plate packet. In this way it is possible to obtain devices with a capacity that varies for instance between 3 and 35 m3/h The packet of plates comprises a number of` completely identical parallel standard plates, in this way reducing the cost of the manufacture. It is possible, as is known, to provide the walls with fnngers or the upper extremities of the individual plates can be flanged or bent such that coale-scence of the contaminated liquid drops is stimulated.
$ _ 4 _ .. . . . , ~ ., . ".., ,.... ,,; " . ,. . , .., -, ::. ':' :": :'',,':.,: . '`','. '' : ' ' . :~::'. ` i: '': '' ' . `~
~ 3;39~7~
The angle ~ bet~een the ou-ter plates of the oll separator and -the front and rear walls of the tank is chosen such that the space required for the oil separator is small, whereas the oil separation is good.
a -39~
It is self-evident that with separators, in which the very light fraction is missing from the liquid to be puri~ied, but a heavier fraction is present indeed, we can suffice with the separator with one collecting chamber, but without enlarged "ante"-space.
" .~ ",
Between plate 6 of the separator L~ and the wall 2 of the tank there is provided a vertical baffle 7 connected to the side walls of the tank and extending from the upper side of the tank terminating at some distance from the wall 6 of the separator 4. Between this baffle 7 and the wall 2 there is provided a second baf'fle 8, which extends from plate 6 of the separator 1~ and terminates at some distance under the upper side of the tank, but above the lower extremity of baffle 7.
In the space 9 between the front wall 1 of the tank and the partition 21 and plate 5 of the separator L~ opens a supply line 10 for -the liquid to be purified, whereas the purified liquid is discharged through line' 11, which is in communication with the space bounded by wall 2, plate 6 and baffle 8. To discharge the separated 1mpurities, such as oil, an outlet pipe 12 is provided. It is also possible to apply an adjustable ou-tlet pipe (skimmer). For the discharge of a light liquid fraction 23 from space 9, a discharge 22 is provided in a similar way.
Ihe liquid to be purified enters the device through line 10 and flows -through space 9, in which turbulence is eliminated completely or for the greater part and which is amply dimensioned in order to separate light liquids 23, such as petrol and petroleum, and flows at the lower side into the separator L~.
'`; 3 397~
:
The separation of the impurities that is more difficult, such as oil, gathers a-t the upper part of the -tank and are discharged th~ough pipe 12.
The purified liquid flows f`rom the upper side of the separator 4 underneath ba~fle 7 and over baffle 8, serving as an overflow, to line 11 ~here it is discharged. Arrows show the paths of the liquids. If desired, dependent on the material to be treated, it is possible to provide a coalescing filter 13 between the plates 5 and 6.
In figure 2, the parts corresponding to those of figure 1 are provided with the same references. In this figure is indicated that in order to increase the capacity, a packet consisting of spaced parallel plates 14 can be provided between the outer plates 5 and 6 of-the separator, in which the number of plates 14 and their mutual dis-tance can be chosen in connection with the required capacity of the oil separating device.
For the discharge of a heavier fraction 27 from both the space 9, from the separator 4 and through the passages 26, and from the space past the separator by means of` the~o~erflow 7 and 8, the bottom 25 of the tank is of a recessed construction so that a collecting chamber 28 is formed.
The heavier fraction 27 collected in this collecting chamber 28 can be discharged through outlet 24.
~he capacity and the power to separa-te of the device can be varied by varying -the number of plates of the plate packet. In this way it is possible to obtain devices with a capacity that varies for instance between 3 and 35 m3/h The packet of plates comprises a number of` completely identical parallel standard plates, in this way reducing the cost of the manufacture. It is possible, as is known, to provide the walls with fnngers or the upper extremities of the individual plates can be flanged or bent such that coale-scence of the contaminated liquid drops is stimulated.
$ _ 4 _ .. . . . , ~ ., . ".., ,.... ,,; " . ,. . , .., -, ::. ':' :": :'',,':.,: . '`','. '' : ' ' . :~::'. ` i: '': '' ' . `~
~ 3;39~7~
The angle ~ bet~een the ou-ter plates of the oll separator and -the front and rear walls of the tank is chosen such that the space required for the oil separator is small, whereas the oil separation is good.
a -39~
It is self-evident that with separators, in which the very light fraction is missing from the liquid to be puri~ied, but a heavier fraction is present indeed, we can suffice with the separator with one collecting chamber, but without enlarged "ante"-space.
" .~ ",
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A separating device for separating substances from a liquid to be purified, said separating device comprising:
a tank having a bottom, and substantially vertical outer walls;
a substantially vertical inner dividing wall in the upper portion of the tank, extending from a point below normal liquid level to a point above normal liquid level, and dividing the upper portion of the tank into a first and a second liquid containing space;
an inlet in the outer wall of the tank, for the liquid to be purified, into the first liquid containing space;
a separator in the tank comprising at least two parallel inclined plates spaced from each other, one of the inclined plates comprising a down-ward extension of the inner dividing wall dividing the lower portion of the tank, and providing an under flow connecting the first liquid containing space with the separator, the inclined plates being so spaced and aligned that the separator extends beneath the second liquid containing space, a first outlet from the second liquid containing space in the tank for the purified liquid;
an overflow between the second liquid containing space and the first outlet;
a second outlet from the second liquid containing space for sepa-rated light substances, the second outlet being at a point higher than the level of the overflow;
a space for eliminating substantially turbulence of the liquid to be purified before entering the separator comprising the lower portion of the first space, being bounded by the outer walls of the tank, the inner dividing wall, and the inclined separator plate comprising the downward extension of the inner dividing wall;
a third outlet from the first liquid containing space at a point higher than the inlet, for substances lighter than the purified liquid,
a tank having a bottom, and substantially vertical outer walls;
a substantially vertical inner dividing wall in the upper portion of the tank, extending from a point below normal liquid level to a point above normal liquid level, and dividing the upper portion of the tank into a first and a second liquid containing space;
an inlet in the outer wall of the tank, for the liquid to be purified, into the first liquid containing space;
a separator in the tank comprising at least two parallel inclined plates spaced from each other, one of the inclined plates comprising a down-ward extension of the inner dividing wall dividing the lower portion of the tank, and providing an under flow connecting the first liquid containing space with the separator, the inclined plates being so spaced and aligned that the separator extends beneath the second liquid containing space, a first outlet from the second liquid containing space in the tank for the purified liquid;
an overflow between the second liquid containing space and the first outlet;
a second outlet from the second liquid containing space for sepa-rated light substances, the second outlet being at a point higher than the level of the overflow;
a space for eliminating substantially turbulence of the liquid to be purified before entering the separator comprising the lower portion of the first space, being bounded by the outer walls of the tank, the inner dividing wall, and the inclined separator plate comprising the downward extension of the inner dividing wall;
a third outlet from the first liquid containing space at a point higher than the inlet, for substances lighter than the purified liquid,
2. A two stage decanter as claimed in claim 1 characterised in that said separator further comprises a plurality of spaced parallel inclined plates between said two parallel plates.
3. A two stage decanter as claimed in claim 1 characterised by means defining a collection area with a fourth outlet connected to the lower end of the first separating space for collecting the substances separated from the liquid to be purified that are heavier than the purified liquid,
4. A two stage decanter as claimed in claim 3 characterised in that said collecting area extends beneath the separator.
5. A two stage decanter as claimed in claim 1 characterised in that said space to substantially eliminate turbulence of the liquid to be purified includes a portion between said one outer wall and said one of said two parallel plates closest thereto of increasing cross section with increasing depth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7410902A NL7410902A (en) | 1974-08-14 | 1974-08-14 | SEPARATOR. |
| NL74.10902 | 1974-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1083978A true CA1083978A (en) | 1980-08-19 |
Family
ID=19821916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA233,380A Expired CA1083978A (en) | 1974-08-14 | 1975-08-13 | Two-stage decanter |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS596716B2 (en) |
| AT (1) | AT349492B (en) |
| AU (1) | AU496924B2 (en) |
| BE (1) | BE832431A (en) |
| CA (1) | CA1083978A (en) |
| CH (1) | CH595127A5 (en) |
| DE (1) | DE2535824A1 (en) |
| ES (1) | ES440657A1 (en) |
| FR (1) | FR2281779A1 (en) |
| GB (1) | GB1515016A (en) |
| IT (1) | IT1041901B (en) |
| NL (1) | NL7410902A (en) |
| NO (1) | NO142988C (en) |
| SE (1) | SE417903B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132651A (en) * | 1976-02-19 | 1979-01-02 | Dejong Leendert W C | Separating device to separate two liquids of different specific gravity |
| BE840717A (en) * | 1976-04-14 | 1976-08-02 | DRINKING WATER PREPARATION PLANT | |
| NL7711963A (en) * | 1977-10-31 | 1979-05-02 | Ballast Nedam Groep Nv | SEPARATOR DEVICE. |
| DE3114745C2 (en) * | 1981-04-11 | 1983-07-21 | Albrecht Markert GmbH, 7411 Engstingen | Device for separating immiscible liquids of different specific gravity |
| JPS614705U (en) * | 1984-06-12 | 1986-01-13 | 三菱樹脂株式会社 | oil water separator |
| SE445710B (en) * | 1984-11-01 | 1986-07-14 | Hyosong M Lee | DEVICE FOR CONTINUOUS SEPARATION OF A LIQUID MIXTURE, INCLUDING A LIGHTER AND A Lighter Phase |
| AT383502B (en) * | 1985-09-25 | 1987-07-10 | Voest Alpine Ag | DEVICE FOR CONTINUOUSLY SEPARATING LIQUID PHASES OF DIFFERENT DENSITY |
| SE459379B (en) * | 1986-12-29 | 1989-06-26 | Holmstrands Products Ab | KIT AND APPLIANCES FOR SEPARATING THE WATER AND SOLVENTS FROM A MIXTURE OF THESE WATERS, WHICH ARE USED IN A DEVELOPER MACHINE FOR PATTERN CARDS |
| DE3924521A1 (en) * | 1989-07-25 | 1991-01-31 | Nii Kommunalnogo Vodosnabzenij | Floating water clarifier with improved performance - by providing end plates which partly close the sides of clarifier block, and separate holding tank from which clarified water is pumped away |
| DE4231790B4 (en) * | 1992-09-23 | 2006-10-05 | Fariwar-Mohseni, Ursula | Apparatus for the treatment of waste water |
| NO302118B1 (en) * | 1995-06-26 | 1998-01-26 | Terje Johan Myrhaug | Grease separator |
| DE102010026647A1 (en) * | 2010-07-09 | 2012-01-12 | Mahle International Gmbh | Phase separator |
| DE102016113707B4 (en) | 2016-07-26 | 2018-09-27 | MH Wassertechnologie GmbH | Method and apparatus for the separation of liquid phases |
| CN107117763A (en) * | 2017-06-05 | 2017-09-01 | 南京工大环境科技有限公司 | Oil, water, mud separator |
| CN115845492B (en) * | 2023-02-16 | 2024-05-28 | 湖南贵友新材料科技股份有限公司 | Multistage separation's water treatment facilities |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL151265C (en) * | 1972-06-21 | 1982-04-16 | Ballast Nedam Groep Nv | SEPARATING DEVICE SUITABLE FOR PURIFYING A CONTAMINATED LIQUID, IN WHICH THE POLLUTION CONTAINS AN OIL LIGHTER THAN THE PURIFIED LIQUID. |
-
1974
- 1974-08-14 NL NL7410902A patent/NL7410902A/en unknown
-
1975
- 1975-08-11 SE SE7509004A patent/SE417903B/en not_active IP Right Cessation
- 1975-08-12 DE DE19752535824 patent/DE2535824A1/en not_active Withdrawn
- 1975-08-12 NO NO752814A patent/NO142988C/en unknown
- 1975-08-13 FR FR7525230A patent/FR2281779A1/en active Granted
- 1975-08-13 AU AU83909/75A patent/AU496924B2/en not_active Expired
- 1975-08-13 CH CH1054675A patent/CH595127A5/xx not_active IP Right Cessation
- 1975-08-13 JP JP50097678A patent/JPS596716B2/en not_active Expired
- 1975-08-13 AT AT628375A patent/AT349492B/en not_active IP Right Cessation
- 1975-08-13 ES ES440657A patent/ES440657A1/en not_active Expired
- 1975-08-13 CA CA233,380A patent/CA1083978A/en not_active Expired
- 1975-08-14 IT IT26386/75A patent/IT1041901B/en active
- 1975-08-14 BE BE159202A patent/BE832431A/en not_active IP Right Cessation
- 1975-08-14 GB GB33899/75A patent/GB1515016A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH595127A5 (en) | 1978-01-31 |
| SE417903B (en) | 1981-04-27 |
| BE832431A (en) | 1976-02-16 |
| FR2281779A1 (en) | 1976-03-12 |
| SE7509004L (en) | 1976-02-16 |
| GB1515016A (en) | 1978-06-21 |
| JPS596716B2 (en) | 1984-02-14 |
| NL7410902A (en) | 1976-02-17 |
| JPS5142167A (en) | 1976-04-09 |
| FR2281779B1 (en) | 1979-05-18 |
| ATA628375A (en) | 1978-09-15 |
| DE2535824A1 (en) | 1976-03-04 |
| ES440657A1 (en) | 1977-03-16 |
| NO142988C (en) | 1980-11-26 |
| AT349492B (en) | 1979-04-10 |
| AU496924B2 (en) | 1978-11-09 |
| NO142988B (en) | 1980-08-18 |
| NO752814L (en) | 1976-02-17 |
| AU8390975A (en) | 1977-02-17 |
| IT1041901B (en) | 1980-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |