WO1994004242A1 - Aufbereitungsanlage für die behandlung von abwässern - Google Patents
Aufbereitungsanlage für die behandlung von abwässern Download PDFInfo
- Publication number
- WO1994004242A1 WO1994004242A1 PCT/DE1993/000728 DE9300728W WO9404242A1 WO 1994004242 A1 WO1994004242 A1 WO 1994004242A1 DE 9300728 W DE9300728 W DE 9300728W WO 9404242 A1 WO9404242 A1 WO 9404242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chambers
- plant according
- waste water
- processing plant
- chamber
- Prior art date
Links
- 238000012545 processing Methods 0.000 title claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 title 1
- 239000002351 wastewater Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 238000001935 peptisation Methods 0.000 claims description 20
- 239000013505 freshwater Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 238000002679 ablation Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0856—Cleaning of water-treatment installations
-
- 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
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/18—Filters characterised by the openings or pores
- B01D2201/188—Multiple filtering elements having filtering areas of different size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/26—Transport systems for filtering devices
- B01D2201/265—Transport systems for filtering devices mounted on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/285—Filtering elements with a symmetry axis not parallel to the rotation axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/48—Overflow systems
Definitions
- the fill level in the prechambers is measured by a fill level monitoring device and that when a predetermined maximum level in a prechamber is exceeded, the feed to this prechamber is blocked and closed by controlling a valve a second chamber is opened.
- a fill level sensor of an automatic overfill protection can be arranged in a prechamber, by means of which the wastewater supply is interrupted when the maximum fill level is reached by switching off the pump or closing an inlet valve. This reliably prevents the system from overflowing.
- the operation of the treatment plant according to the invention can be further improved by the fact that two separate end chambers are provided for the post-purification of the waste water, the inlet openings of which are constantly connected to a previous chamber of the plant and which can be switched off by blocking their respective outlet.
- the horizontal filter bases in the end chambers can also be cleaned during operation of the processing system by switching off the end chamber to be cleaned.
- the end chambers can be connected in parallel to one another or in series one behind the other.
- At least one of the two end chambers near the bottom has a closable outlet opening which is covered by a filter element which corresponds in effect to the filter bottom of the end chamber.
- the water emerging from the jets cannot be completely collected again, since water is lost, for example, due to evaporation and the formation of spray mist. It is therefore necessary to supplement the collected and cleaned amount of waste water with a fresh water amount to compensate for the water loss.
- this can be achieved in a simple manner in that the end chambers are followed by a storage container which is connected to a fresh water supply and from which the high-pressure water jets are fed.
- the fresh water supply can be controlled in a simple manner by measuring the fill level in the storage container and opening a valve of the fresh water supply when the value falls below a predetermined limit.
- the wastewater inlet has a distributor pipe with one or more horizontally arranged pipe loops, the pipes of which have outlet openings in mutually adjacent sections.
- the wastewater fed to the treatment plant via a return pump is introduced into the chamber at many points distributed over the chamber surface with different flow directions by the inventive design of the wastewater inlet, which results in a uniform loading of the filter base and the formation of more Flow zones is avoided.
- the pipes of the waste water inlet can consist of an elastically deformable material
- REPLACEMENT LEAF have longitudinal, axially parallel longitudinal slots and are deformed by twisting individual pipe sections about their longitudinal axis in such a way that alternate outlet openings are formed by the longitudinal slots.
- two deflocculation chambers can be connected in parallel to one another before the wastewater inlet of the plant, in which by adding a flocculant dirt or pollutants can be separated by flocculation.
- the deflocculation chambers are preferably provided with pumps with which the treated wastewater is conveyed into a prechamber of the plant after the flakes have sedimented. An arrangement of pumps can be dispensed with if the deflocculation chambers are arranged at a higher level than the antechambers of the plant.
- the deflocculation chambers preferably form a separate structural unit which can be connected to the antechambers of the plant by means of lines.
- the system can be operated with upstream deflocculation chambers or without them, as required.
- the deflocculation chambers can be equipped with agitators.
- holding devices for agitators can be attached to the deflocculation chambers.
- the deflocculation chambers can be provided with a venting device which can be connected to a compressed air source, in order to enable a circulation of the water and, if necessary, an oxygen input by supplying air.
- the deflocculation chambers can thus take on the same buffer function that is assigned to the parallel connected chambers. If the system has two deflocculation chambers in the entrance, it is sufficient if the two deflocculation chambers follow only one pre-cleaning chamber.
- the pH value is first measured in it and brought to the required value.
- a flocculant is then added to the wastewater and mixed with it, while the wastewater which is still present is directed into the other deflocculation chamber.
- the treated wastewater is pumped from the first deflocculation chamber into the antechamber of the system. The same process is then repeated for the second deflocculation chamber, which has now been filled.
- FIG. 1 shows a schematic illustration of a treatment plant according to the invention with five chambers connected in series in a view from above,
- FIG. 2 shows a schematic illustration of a longitudinal section through the processing plant according to FIG. 1,
- FIG. 3 shows a schematic illustration of a further processing plant with chambers arranged parallel to one another and a storage container in a view from above
- FIG. 4 shows a schematic illustration of the processing plant according to FIG. 3 in longitudinal section
- FIG. 5 shows a view of a wastewater inlet according to the invention
- Figure 6 shows a cross section A-A through a pipe section of the waste water inlet according to Figure 5 and
- FIG. 7 shows a cross section B-B through a pipe section of the waste water inlet according to FIG. 5.
- the processing plant shown in Figures 1 and 2 consists of a cuboid container 1, which is divided by partitions 2 into two antechambers 3, 4, an intermediate chamber 5 and two end chambers 6, 7.
- the partitions 2 have flow openings 8 in the vicinity of the container bottom.
- the chambers 3 to 7 are arranged in series one behind the other and are connected to one another via the flow openings 8.
- the intermediate chamber 5 contains two standing filters 11 which are arranged parallel to the partition walls 2 at a distance from one another.
- the filter bases 9 contain sieves for collecting coarser particles and filter material, such as glass wool, gravel or other filter materials, which retain finer particles. Furthermore, the filter bases 9 bring about a flow stabilization in order to promote sedimentation of finer suspended particles.
- the standing filters 11 are preferably filled with filter materials which serve to separate hydrocarbons and heavy metals.
- the filter trays 10 serve primarily for fine filtration and, depending on the composition of the waste water to be cleaned, can be used with suitable ones Filter materials can be fitted.
- the waste water is fed to the antechambers 3, 4 via an inlet 12 with two separate inlet pipes 13, 14, each of which can be blocked via a valve 15, 16.
- Distribution pipes 17, 18 are connected to the outlet openings of the inlet pipes 13, 14, which distribute the waste water evenly over the horizontal inlet cross section of the antechambers 3, 4.
- the distributor pipes can correspond to the embodiment shown in FIGS. 5 to 7.
- the end chambers 6, 7 have drain openings 19, 20 which can be closed by valves 21, 22.
- a reservoir or expansion tank not shown, can be connected, from which the pump sucks the water to feed the high-pressure jet.
- the system described enables effective cleaning of the water accumulated when working with ultra-high pressure lamps in continuous operation.
- the wastewater collected and fed to the inlet 12 via a pump is first fed to only one prechamber, for example the prechamber 3, by opening the valve 15 and closing the valve 16.
- the wastewater pre-cleaned in the pre-chamber 3 then flows through the pre-chamber 4 into the intermediate chamber 5, passes the standing filter 11 there and then first reaches the end chamber 6. If the valve 21 at the drain opening 19 is open, the valve 22 at the drain opening 20, on the other hand, closed, the water is only cleaned in the end chamber 6 and, after passing through the filter base 10, leaves the system via the drain opening 19.
- the pre-chamber 4 and the end chamber 7 are not involved in the water purification in this mode of operation, so that their filter bases can be cleaned or replaced if necessary.
- the fill level in the pre-chamber 3 increases beyond a predetermined amount.
- This rise in the fill level is detected by a measuring device (not shown in more detail) and displayed in the form of a suitable signal.
- the system can then be reversed automatically or manually by closing the valves 15 and 21 and opening the valves 16 and 22.
- the pre-chamber 3 and the end chamber 6 are switched off, so that the filter bases located therein can be cleaned without the system having to be shut down. It is also not necessary to shut down the system to clean or regenerate the standing filter 11. Since two standing filters 11 are provided, one of the two can be removed without disadvantage for the process and replaced by a cleaned or regenerated standing filter.
- the inlet 12 can be connected to both prechambers 4 at the same time in order to increase the cleaning performance and to compensate for particularly high dirt loads.
- the two end chambers 6, 7 can also be operated simultaneously by opening the valves 21, 22. The system according to the invention thus enables adaptation to short-term maximum loads in a simple manner.
- the end chamber 7 has a closable outlet opening 23, which is preceded by a filter element 24.
- a recirculation line can also be connected to the outlet opening 23.
- Layers are formed in a cuboid-shaped container 30 by transverse dividing walls 31 with through openings 32 and two dividing walls 33 arranged in the longitudinal direction, two parallel antechambers 34, 35, an intermediate chamber 36 and two parallel end chambers 37, 38.
- the antechambers 34, 35 and the end chambers 37, 38 have horizontal filter plates 39, 40.
- a vertically aligned standing filter 41 is arranged in the intermediate chamber 36 parallel to the partition walls 31.
- Exhaust openings 43, 44 located above the horizontal filters 40 connect the chambers 37, 38 to a storage container 45 which adjoins the container 30 and is connected to a fresh water supply 46.
- the fresh water supply 46 has a float valve 47 which is opened when the liquid level in the reservoir 45 drops.
- FIGS. 3 and 4 offer the same operating options as the system according to FIGS. 1 and 2. Because of the arrangement of the prechambers 34, 35 and the end chambers 37, 38, it is expedient if only one prechamber is used during operation, e.g. the pre-chamber 34, which is operated diagonally to this end chamber 38, since this results in a better flow through the standing filter 41.
- FIGS. 5 to 7 show an embodiment according to the invention of a distributor pipe 50 to be connected to the inlet.
- the distributor pipe 50 is designed as a double pipe loop approximately in the form of an eight, which lies in a horizontal plane and via a connecting flange 51 to the Container wall 52 and an inlet pipe 53 is firmly connected.
- the distributor pipe 50 consists of individual pipe sections 54 to 58 which are welded to one another and each have longitudinal slots 59, 60 which are offset with respect to one another on their upper side.
- the slots 59, 60 extend in the longitudinal direction
- the slots 59, 60 form outlet openings for the supplied water, through which the water can emerge from the distributor pipe 50 in the direction of the arrows shown in FIG.
- the width of the slots 59, 60 increases in the direction of flow.
- the slots 59, 60 in the pipe section 56 are wider than in the pipe section 54.
- the described distribution pipe is simple to manufacture and ensures a uniform distribution of the amount of water supplied via the inlet pipe 53 in a relatively large horizontal plane.
- the individual tube sections can also have continuous slots and be twisted about their longitudinal axis in accordance with the offset of the slots 59, 60.
- the processing plants described are characterized by simple manufacture, favorable dimensions and an operating mode which can be easily adapted to different needs.
- the systems can be built both in an easily transportable size and in the form of stationary systems.
- the systems are suitable for the use of different filter materials.
- Different treatment methods for water treatment can be used in the individual chambers in order to successively remove different ingredients from the water; the purified water can be reused as process water.
- the treatment plant according to the invention is also suitable for the purification of waste water from other purification processes, e.g. of car washes. If the wastewater is more contaminated, for example when cleaning buildings damaged by fire, a clarifier can be installed upstream of the pre-chambers, in which the wastewater is pre-treated by changing the pH value and adding flocculants and flocculants .
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SK190-95A SK282526B6 (sk) | 1992-08-12 | 1993-08-12 | Zariadenie na čistenie odpadových vôd |
AU46978/93A AU4697893A (en) | 1992-08-12 | 1993-08-12 | Processing plant for waste water treatment |
PL93307351A PL179059B1 (pl) | 1992-08-12 | 1993-08-12 | Uklad zasilajacy oczyszczalni scieków PL |
EP93917551A EP0664726A1 (de) | 1992-08-12 | 1993-08-12 | Aufbereitungsanlage für die behandlung von abwässern |
DE4393916T DE4393916D2 (de) | 1992-08-12 | 1993-08-12 | Aufbereitungsanlage für die Behandlung von Abwässern |
NO950463A NO950463L (no) | 1992-08-12 | 1995-02-08 | Prosessanlegg for behandling av avlöpsvann |
FI950598A FI950598A0 (fi) | 1992-08-12 | 1995-02-10 | Puhdistusjärjestelmä jätevesien käsittelyä varten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4226570.3 | 1992-08-12 | ||
DE4226570A DE4226570A1 (de) | 1992-08-12 | 1992-08-12 | Aufbereitungsanlage für die Behandlung von Abwässern |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994004242A1 true WO1994004242A1 (de) | 1994-03-03 |
Family
ID=6465320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/000728 WO1994004242A1 (de) | 1992-08-12 | 1993-08-12 | Aufbereitungsanlage für die behandlung von abwässern |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0664726A1 (de) |
AU (1) | AU4697893A (de) |
CA (1) | CA2142268A1 (de) |
CZ (1) | CZ29695A3 (de) |
DE (2) | DE4226570A1 (de) |
FI (1) | FI950598A0 (de) |
HU (1) | HUT69455A (de) |
PL (1) | PL179059B1 (de) |
SK (1) | SK282526B6 (de) |
WO (1) | WO1994004242A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29616385U1 (de) * | 1996-09-20 | 1996-11-14 | Luhr, Johannes, 79292 Pfaffenweiler | Filtermaterial sowie Filter zum Filtrieren von Flüssigkeiten oder Gasen |
GB0411608D0 (en) * | 2004-05-25 | 2004-06-30 | Reynolds Simon D | Filtration device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2495031A (en) * | 1947-10-16 | 1950-01-17 | Stovall Kenneth Le Roy | Oil filter unit |
DE2510283A1 (de) * | 1975-03-08 | 1976-09-16 | Dieter J Ing Grad Weber | Vorrichtung zum abscheiden von feststoffen aus schlammfoermigem, fluessigem medium |
US4424125A (en) * | 1981-12-14 | 1984-01-03 | Axis Products Limited | Separator apparatus |
EP0115630A2 (de) * | 1983-01-11 | 1984-08-15 | Taprogge Gesellschaft mbH | Siebanlage für die mechanische Reinigung von fliessendem Wasser |
-
1992
- 1992-08-12 DE DE4226570A patent/DE4226570A1/de not_active Withdrawn
-
1993
- 1993-08-12 HU HU9500399A patent/HUT69455A/hu unknown
- 1993-08-12 CA CA002142268A patent/CA2142268A1/en not_active Abandoned
- 1993-08-12 CZ CZ95296A patent/CZ29695A3/cs unknown
- 1993-08-12 PL PL93307351A patent/PL179059B1/pl unknown
- 1993-08-12 DE DE4393916T patent/DE4393916D2/de not_active Expired - Fee Related
- 1993-08-12 EP EP93917551A patent/EP0664726A1/de not_active Withdrawn
- 1993-08-12 SK SK190-95A patent/SK282526B6/sk unknown
- 1993-08-12 AU AU46978/93A patent/AU4697893A/en not_active Abandoned
- 1993-08-12 WO PCT/DE1993/000728 patent/WO1994004242A1/de not_active Application Discontinuation
-
1995
- 1995-02-10 FI FI950598A patent/FI950598A0/fi not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2495031A (en) * | 1947-10-16 | 1950-01-17 | Stovall Kenneth Le Roy | Oil filter unit |
DE2510283A1 (de) * | 1975-03-08 | 1976-09-16 | Dieter J Ing Grad Weber | Vorrichtung zum abscheiden von feststoffen aus schlammfoermigem, fluessigem medium |
US4424125A (en) * | 1981-12-14 | 1984-01-03 | Axis Products Limited | Separator apparatus |
EP0115630A2 (de) * | 1983-01-11 | 1984-08-15 | Taprogge Gesellschaft mbH | Siebanlage für die mechanische Reinigung von fliessendem Wasser |
Also Published As
Publication number | Publication date |
---|---|
FI950598A (fi) | 1995-02-10 |
FI950598A0 (fi) | 1995-02-10 |
HUT69455A (en) | 1995-09-28 |
HU9500399D0 (en) | 1995-04-28 |
DE4393916D2 (de) | 1995-10-19 |
EP0664726A1 (de) | 1995-08-02 |
CA2142268A1 (en) | 1994-03-03 |
PL307351A1 (en) | 1995-05-15 |
DE4226570A1 (de) | 1994-02-17 |
SK282526B6 (sk) | 2002-10-08 |
PL179059B1 (pl) | 2000-07-31 |
CZ29695A3 (en) | 1995-09-13 |
SK19095A3 (en) | 1996-02-07 |
AU4697893A (en) | 1994-03-15 |
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