WO2004041418A1 - Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung - Google Patents
Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung Download PDFInfo
- Publication number
- WO2004041418A1 WO2004041418A1 PCT/EP2003/007916 EP0307916W WO2004041418A1 WO 2004041418 A1 WO2004041418 A1 WO 2004041418A1 EP 0307916 W EP0307916 W EP 0307916W WO 2004041418 A1 WO2004041418 A1 WO 2004041418A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- salt water
- water
- membrane
- membrane module
- Prior art date
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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/06—Energy recovery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
- F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
- F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F13/00—Pressure exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Definitions
- the invention relates to a method and a corresponding device for the continuous desalination of water by reverse osmosis, in particular for the desalination of sea water.
- Such a device is described for example in WO 02/41979 A1.
- the salt water is introduced under a first pressure into a pressure compensation device and from there under a second, higher pressure into a membrane module.
- the membrane module separates into demineralized water and concentrated salt water.
- the discharged concentrated salt water which still has approximately the second pressure, is continuously introduced back into the pressure compensation device and is used there to apply approximately the second pressure to the salt water introduced into the pressure compensation device and to introduce the salt water into the membrane module.
- the pressure compensation device described therein has two piston / cylinder devices operating in opposite phases, the pistons of which are firmly connected to one another by an additionally driven piston rod.
- the separation into concentrated salt water and desalinated water takes place on a so-called “crossflow” membrane located in the membrane module.
- the introduced salt water flows along the surface of the membrane, while part of it as demineralized water (drinking water) passes through the membrane in a direction perpendicular to it.
- demineralized water drinking water
- These intersecting water flows are also referred to as "crossflow”.
- the flow on the membrane surface also flushes away undesired foreign bodies on the membrane surface and thus brings about a continuous cleaning of the membrane.
- the invention is therefore based on the object of providing measures for avoiding the problems described in the known methods and devices for the continuous desalination of water by reverse osmosis, which work with a membrane module as described.
- the invention is based on the knowledge that the problems described, in particular an interruption in operation due to contamination of the membrane surface or even damage to the membrane, can be avoided by continuously maintaining the flow over the membrane by suitable means.
- a reservoir is provided which acts on the salt water introduced into the membrane module and additionally introduces water, in particular salt water, into the membrane module in order to maintain the flow over the membrane.
- a pressure drop or flow drop is bridged in order to maintain the continuous flow across the membrane.
- appropriate sensors can be provided for measuring a reduction in the flow across the membrane.
- two piston / cylinder devices operating in opposite phases are preferably provided, as are known from WO 02/41979 A1.
- the memory then causes a support pressure to be exerted on the salt water when the direction of movement of the pistons changes, that is to say in particular when the pistons are at a standstill. In this switching moment, in particular, a possible pressure drop is compensated for and the flow over the membrane is maintained.
- a further advantageous embodiment is provided in claim 3.
- the pressure required to discharge the water from the reservoir is generated on the one hand from the pressure of the concentrated salt water discharged from the membrane module and, in addition, from a pressure stored in a pressure reservoir, the total pressure which must of course be greater than that if necessary Pressure that the salt water flowing out of the pressure compensation device has.
- a preferred embodiment of a pressure support device is specified in claim 6. Accordingly, a piston / cylinder device is provided which has a piston which divides the cylinder interior into three chambers, the salt water flowing out of the pressure compensation device in an input chamber, the concentrated salt water flowing out of the membrane device in an output chamber and in a pressure chamber a medium stored in a pressure accumulator, for example also water or a hydraulic fluid, is present under a high pressure.
- the desired maintenance of the flow by discharging water from the storage device is preferably established automatically.
- a corresponding control device for controlling the piston / cylinder device can also be provided in order to bring about the desired pressure support.
- Fig. 1 is a block diagram for explaining the inventive method
- Fig. 2 shows an embodiment of a device according to the invention.
- the block diagram in FIG. 1 shows a feed pump 1 for introducing salt water 10 into a pressure compensation device 2 under a first pressure p1.
- part of the salt water 11 passes through the membrane 6, which is preferably designed as a so-called “crossflow” membrane, for example 25% of the salt water 11, is desalted and drained off as desalinated water 12.
- the concentrated salt water 13 still has a high pressure which corresponds approximately to the pressure p2, but is slightly lower, is then fed back to the pressure compensation device 2.
- this high pressure p2 is used in a manner to be explained in more detail to pressurize the salt water introduced into the pressure compensation device 2 and to feed it to the membrane module 3 at its entrance.
- this pressure in the pressure compensation device is used to finally discharge concentrated salt water 14 therein via the discharge line 4 and to supply unconcentrated salt water 10 to the pressure compensation device 2. All of the processes described take place simultaneously and continuously, so that a high-pressure pump which supplies the high working pressure is not required and demineralized water 12 is continuously available.
- a reservoir 15 is therefore provided according to the invention, which is in a In such a case, additional water flows into the membrane module 3 and thus ensures that the high working pressure p2 is maintained and the flow over the membrane surface is not reduced.
- FIG. 2 shows a specific embodiment of a device according to the invention.
- This has two identical piston / cylinder devices 401, 402 with two cylinders arranged opposite one another in alignment, each having an inlet chamber 201, 202 for receiving the salt water and an outlet chamber 101, 102 for receiving the concentrated salt water 13.
- a special piston 301, 302 is arranged in each case within the piston / cylinder devices 401, 402, which piston separates the interior of the piston into the chambers mentioned. divides and which can be moved in the image in the horizontal direction within the piston / cylinder device.
- a feed line with a (passive) check valve 7 leads from the feed pump 1 to the input chambers 201, 202.
- the check valves 7 are designed in such a way that they open and allow flow when the pressure in the feed line is greater than in the Inlet chambers 201, 202.
- Comparable check valves 8, which, however, have a different flow direction, can be found in the feed lines from the inlet chambers 201, 202 to the membrane module 3.
- actively switchable main valves V3, V6 and V1, V4 are arranged in the feed lines 5 from the membrane module 3 to the outlet chambers 101, 102 and in the discharge lines 4 from the outlet chambers 101, 102, via which the inflow of the concentrated salt water 13 from the membrane module 3 or the outflow of the concentrated salt water 14 from the pressure compensation device 2 can be controlled.
- the pistons 301, 302 are firmly connected to one another by means of a piston rod 30.
- Pinion 40, the z. B. can be driven by electric geared motors and engage in a toothing attached to the piston rod 30, the piston rod 30 and above the pistons 301, 302 can drive to compensate for pressure losses.
- the pistons are arranged so that they work in opposite phases.
- the other piston connected via the piston rod 30 is in a position in which the volume of the inlet chamber 201 is minimal and the volume of the exit chamber 101 is maximum (see FIG. 2).
- the entrance chamber 202 is filled with water and the exit chamber 101 is filled with concentrated salt water.
- the valves V1, V3, V4 and V6, which are shown here as switches, are controlled so that V3 and V4 are now closed while V1 and V6 are opened.
- opening a valve means establishing a flow connection in order to allow flow through, for which purpose the valve is opened purely mechanically.
- closing a valve means interrupting a flow connection in order to prevent flow, for which purpose the valve is closed purely mechanically.
- the pressure of the concentrated salt water in the outlet chamber 101 initially escapes.
- the outlet chamber 102 is pressurized (for example about 65 bar) and the concentrated salt water flows into this chamber.
- the pressurized piston presses the salt water in the input chamber 202 to the membrane module 3.
- the pistons are arranged in such a way that they operate in phase opposition, the introduction of the concentrate (for example 65 bar) pressure into the outlet chamber 102 through the piston rod 30 causes the other piston 301 to move, which thereby empties the unpressurized outlet chamber 101. At the same time, a negative pressure is created in the inlet chamber 201, which sucks in salt water and fills this chamber.
- concentrate for example 65 bar
- the membrane module is preferably operated at approximately 70 bar in order to achieve a sufficiently high fresh water production and a maximum of approximately 5-10 bar occur as a pressure loss on the membrane, at least the above-mentioned approximately 65 are at the concentrate drain 5 of the membrane module 3 bar pressure of the concentrated salt water is available.
- an additional piston / cylinder device 403, hereinafter referred to as a piston accumulator is inventively described , intended.
- This has three chambers, namely a feed water chamber (inlet chamber) 203, which is connected to the feed line for the salt water 11 fed in, a concentrate connected to the concentrate line 5.
- the pressure chamber 503 is connected on the one hand via an active valve V7 to the feed line 11 and on the other hand directly to a pressure accumulator 20, preferably a bladder accumulator.
- valve V7 is always closed; it merely serves to be able to refill the circuit consisting of the pressure chamber 503 and the pressure accumulator 20 with the pressure fluid, for example a hydraulic fluid, after an interruption in operation and the required high pressure in the pressure accumulator 20 restore.
- the pressure fluid for example a hydraulic fluid
- the effective piston area of the piston 303 in the concentrate chamber 103 is approximately three quarters of the piston area in the feed water chamber 203 and the piston surface in the pressure chamber 503 is approximately one quarter of this area, the following pressure distributions result.
- the feed water chamber 203 is subjected to approximately 70 bar during operation. This results in the circuit of pressure chamber 104 and pressure accumulator 20 up to 280 bar. However, these are not achieved in operation.
- the operating pressure in this area is around 200 to 210 bar.
- a pressure of approximately 70 bar acts on the piston 303 from the feed water chamber 203.
- the pressure in the accumulator 20 is only 160 bar.
- a pressure of about 160/4, ie about 40 bar acts from here because of the smaller piston area in the pressure chamber 503.
- the pressure in the concentrate circuit that is to say the pressure of the concentrated salt water 13 discharged from the membrane module 3, is approximately 68 bar. This pressure acts on a surface that covers three quarters of the piston surface.
- a pressure of approximately 51 bar acts here.
- the piston accumulator 403 can be controlled in such a way that an additional pressure is only exerted on the said connecting line in the event of a pressure drop in the connecting line between the input chambers 201, 202 and the membrane module 3 or a reduction in the flow over the membrane 6.
- suitable sensors can be provided, for example, which determine such a drop in pressure or a reduction in flow and trigger the corresponding pressure control.
- valves can be provided in the concentrate line 5 between the membrane module 3 and the piston / cylinder device 403, which are opened if necessary in order to bring about the described movement of the piston 303 downward by introducing a pressure into the concentrate chamber 103 , If, on the other hand, such pressure support is not required, such a valve can also be closed again, so that, owing to the greater pressure in the feed water chamber 203, the piston 303 is moved upward again relative to the pressure chamber 503 and remains virtually ready for use there.
- auxiliary or bypass valves can also be provided in parallel to the described main valves V1, V3, V4, V6 in order to reduce the load on the main valves and thus increase their service life.
- one or more flow rate limiters can also be provided, which are intended to prevent an abrupt pressure equalization by limiting the maximum flow rate and thus contributing to a gradual pressure equalization and to slow pressure changes instead of sudden pressure fluctuations.
- the invention can also be used in devices of different design for the desalination of water by reverse osmosis, which, for example, has a different number of such devices, for example one or three piston / cylinder devices, instead of the two piston / cylinder devices shown. In principle, these can also be designed differently.
- the configuration of the accumulator shown in FIG. 2 in the form of a piston / cylinder device with three chambers is also not absolutely necessary, but can in principle also look different.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0315852-7A BR0315852B1 (pt) | 2002-11-05 | 2003-07-21 | processo e dispositivo para a dessalinização contìnua de água por meio de osmose reversa. |
EP03810387A EP1560637B1 (de) | 2002-11-05 | 2003-07-21 | Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung |
CA002502736A CA2502736C (en) | 2002-11-05 | 2003-07-21 | Method and device for desalinating water while overcoming decreases in pressure |
DE50309593T DE50309593D1 (de) | 2002-11-05 | 2003-07-21 | Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung |
DK03810387T DK1560637T3 (da) | 2002-11-05 | 2003-07-21 | Fremgangsmåde og indretning til afsaltning af vand under udligning af trykfald |
JP2004548709A JP3926367B2 (ja) | 2002-11-05 | 2003-07-21 | 圧力低下を解決しつつ水を脱塩するための方法とデバイス |
AU2003254549A AU2003254549B2 (en) | 2002-11-05 | 2003-07-21 | Method and device for desalinating water while overcoming decreases in pressure |
US10/533,851 US7550088B2 (en) | 2002-11-05 | 2003-07-21 | Method and device for desalinating water while overcoming decreases in pressure |
SI200331167T SI1560637T1 (sl) | 2002-11-05 | 2003-07-21 | Postopek in naprava za razsoljevanje vode s pomočjo obratne osmoze |
IL168159A IL168159A (en) | 2002-11-05 | 2005-04-20 | Method and device for desalinating water while overcoming decreases in pressure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251342A DE10251342B4 (de) | 2002-11-05 | 2002-11-05 | Verfahren und Vorrichtung zum Entsalzen von Wasser mit Druckabfallüberbrückung |
DE10251342.2 | 2002-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004041418A1 true WO2004041418A1 (de) | 2004-05-21 |
Family
ID=32115203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/007916 WO2004041418A1 (de) | 2002-11-05 | 2003-07-21 | Verfahren und vorrichtung zum entsalzen von wasser mit druckabfallüberbrückung |
Country Status (18)
Country | Link |
---|---|
US (1) | US7550088B2 (de) |
EP (1) | EP1560637B1 (de) |
JP (1) | JP3926367B2 (de) |
KR (1) | KR100670760B1 (de) |
CN (1) | CN100409925C (de) |
AR (1) | AR041890A1 (de) |
AT (1) | ATE391549T1 (de) |
AU (1) | AU2003254549B2 (de) |
BR (1) | BR0315852B1 (de) |
CA (1) | CA2502736C (de) |
CY (1) | CY1108111T1 (de) |
DE (2) | DE10251342B4 (de) |
DK (1) | DK1560637T3 (de) |
ES (1) | ES2301883T3 (de) |
IL (1) | IL168159A (de) |
PL (1) | PL211959B1 (de) |
PT (1) | PT1560637E (de) |
WO (1) | WO2004041418A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2902595A1 (de) * | 2006-05-12 | 2015-08-05 | Energy Recovery, Inc. | Verfahren zur verwendung halbdurchlässiger membrane |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004061813A1 (de) * | 2004-12-22 | 2006-07-06 | Robert Bosch Gmbh | Kolbenpumpe mit wenigstens einem Kolbenelement |
WO2010124170A2 (en) * | 2009-04-23 | 2010-10-28 | John Scialdone | Deep water desalination system and method |
DE102009020932A1 (de) * | 2009-05-12 | 2010-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Druckaustauscher mit Linearantrieb |
JP2011056439A (ja) * | 2009-09-11 | 2011-03-24 | Toshiba Corp | 動力回収装置 |
US20140042102A1 (en) * | 2012-08-07 | 2014-02-13 | World Wide Water Solutions | Front Flush Systems and Methods |
CN106369015B (zh) * | 2016-09-07 | 2018-05-29 | 上海空间推进研究所 | 压差式能量回收泵 |
IL251499B (en) * | 2017-04-02 | 2019-02-28 | Efraty Avi | Reverse osmosis installation in a closed circuit with a hydraulic arm for desalination with low energy consumption and a high recovery ratio |
NL2019357B1 (en) * | 2017-07-27 | 2019-02-18 | Weir Minerals Netherlands Bv | Pump system for handling a slurry medium |
GB201813792D0 (en) * | 2018-08-23 | 2018-10-10 | Davies Philip Andrew | Desalination system and method |
US11072542B2 (en) | 2019-01-17 | 2021-07-27 | A. O. Smith Corporation | High water efficiency TDS creep solution |
US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
CN118026409B (zh) * | 2024-04-11 | 2024-06-14 | 四川发展环境科学技术研究院有限公司 | 一种厌氧氨氧化耦合硫自养反硝化的废水脱氮系统 |
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EP0055981A1 (de) * | 1981-01-05 | 1982-07-14 | D. José Luis Ramo Mesple | Wasserentsalzungssystem nach dem Verfahren der umgekehrten Osmose |
FR2568321A1 (fr) * | 1984-07-30 | 1986-01-31 | Eszakdunantuli Viz Es Csatorna | Procede et installation d'exploitation de l'energie potentielle d'un liquide |
WO2000076639A1 (en) * | 1999-06-16 | 2000-12-21 | Lyng Bjoern | A method and a plant for production of fresh water from briny water |
WO2002041979A1 (de) * | 2000-11-21 | 2002-05-30 | Aloys Wobben | Verfahren und vorrichtung zum entsalzen von wasser |
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US3498910A (en) * | 1968-09-03 | 1970-03-03 | Morris Mendelson | Apparatus and process for the controlled osmotic separation of water from sea water |
FR1585376A (de) * | 1968-10-11 | 1970-01-16 | ||
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US5628198A (en) * | 1996-05-13 | 1997-05-13 | Permar; Clark | Liquid treatment apparatus for filtering liquid under pressure |
US6017200A (en) * | 1997-08-12 | 2000-01-25 | Science Applications International Corporation | Integrated pumping and/or energy recovery system |
US6558537B1 (en) * | 1999-05-25 | 2003-05-06 | Miox Corporation | Portable hydration system |
DE19933147C2 (de) * | 1999-07-20 | 2002-04-18 | Aloys Wobben | Verfahren und Vorrichtung zum Entsalzen von Wasser |
CN2461915Y (zh) * | 2000-12-29 | 2001-11-28 | 刘博渊 | 带活塞式能量回收器的反渗透装置 |
CN1156334C (zh) * | 2001-08-15 | 2004-07-07 | 天津大学 | 反渗透淡化系统阀控余压回收装置 |
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2002
- 2002-11-05 DE DE10251342A patent/DE10251342B4/de not_active Expired - Fee Related
-
2003
- 2003-07-21 DK DK03810387T patent/DK1560637T3/da active
- 2003-07-21 US US10/533,851 patent/US7550088B2/en not_active Expired - Fee Related
- 2003-07-21 PT PT03810387T patent/PT1560637E/pt unknown
- 2003-07-21 CN CNB038248344A patent/CN100409925C/zh not_active Expired - Fee Related
- 2003-07-21 EP EP03810387A patent/EP1560637B1/de not_active Expired - Lifetime
- 2003-07-21 DE DE50309593T patent/DE50309593D1/de not_active Expired - Lifetime
- 2003-07-21 PL PL375761A patent/PL211959B1/pl unknown
- 2003-07-21 AU AU2003254549A patent/AU2003254549B2/en not_active Ceased
- 2003-07-21 JP JP2004548709A patent/JP3926367B2/ja not_active Expired - Fee Related
- 2003-07-21 WO PCT/EP2003/007916 patent/WO2004041418A1/de active IP Right Grant
- 2003-07-21 BR BRPI0315852-7A patent/BR0315852B1/pt not_active IP Right Cessation
- 2003-07-21 ES ES03810387T patent/ES2301883T3/es not_active Expired - Lifetime
- 2003-07-21 CA CA002502736A patent/CA2502736C/en not_active Expired - Fee Related
- 2003-07-21 AT AT03810387T patent/ATE391549T1/de active
- 2003-07-21 KR KR1020057007943A patent/KR100670760B1/ko not_active IP Right Cessation
- 2003-11-05 AR ARP030104046A patent/AR041890A1/es not_active Application Discontinuation
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2005
- 2005-04-20 IL IL168159A patent/IL168159A/en unknown
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2008
- 2008-06-03 CY CY20081100578T patent/CY1108111T1/el unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4187173A (en) * | 1977-03-28 | 1980-02-05 | Keefer Bowie | Reverse osmosis method and apparatus |
EP0018128A1 (de) * | 1979-04-06 | 1980-10-29 | Seagold Industries Corporation | Verfahren und Vorrichtung für Umkehrosmose |
EP0055981A1 (de) * | 1981-01-05 | 1982-07-14 | D. José Luis Ramo Mesple | Wasserentsalzungssystem nach dem Verfahren der umgekehrten Osmose |
FR2568321A1 (fr) * | 1984-07-30 | 1986-01-31 | Eszakdunantuli Viz Es Csatorna | Procede et installation d'exploitation de l'energie potentielle d'un liquide |
WO2000076639A1 (en) * | 1999-06-16 | 2000-12-21 | Lyng Bjoern | A method and a plant for production of fresh water from briny water |
WO2002041979A1 (de) * | 2000-11-21 | 2002-05-30 | Aloys Wobben | Verfahren und vorrichtung zum entsalzen von wasser |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2902595A1 (de) * | 2006-05-12 | 2015-08-05 | Energy Recovery, Inc. | Verfahren zur verwendung halbdurchlässiger membrane |
Also Published As
Publication number | Publication date |
---|---|
CA2502736A1 (en) | 2004-05-21 |
KR100670760B1 (ko) | 2007-01-17 |
PL375761A1 (en) | 2005-12-12 |
DE50309593D1 (de) | 2008-05-21 |
AR041890A1 (es) | 2005-06-01 |
US20060124546A1 (en) | 2006-06-15 |
CN100409925C (zh) | 2008-08-13 |
PT1560637E (pt) | 2008-05-29 |
DE10251342A1 (de) | 2004-05-19 |
BR0315852A (pt) | 2005-09-20 |
US7550088B2 (en) | 2009-06-23 |
ATE391549T1 (de) | 2008-04-15 |
EP1560637A1 (de) | 2005-08-10 |
PL211959B1 (pl) | 2012-07-31 |
AU2003254549A1 (en) | 2004-06-07 |
CN1852758A (zh) | 2006-10-25 |
CA2502736C (en) | 2008-07-15 |
KR20050084667A (ko) | 2005-08-26 |
AU2003254549B2 (en) | 2005-12-15 |
JP3926367B2 (ja) | 2007-06-06 |
EP1560637B1 (de) | 2008-04-09 |
CY1108111T1 (el) | 2014-02-12 |
IL168159A (en) | 2009-07-20 |
DE10251342B4 (de) | 2013-03-14 |
BR0315852B1 (pt) | 2012-06-26 |
JP2006504521A (ja) | 2006-02-09 |
ES2301883T3 (es) | 2008-07-01 |
DK1560637T3 (da) | 2008-05-19 |
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