GB2214835A - Method and apparatus for desalination - Google Patents
Method and apparatus for desalination Download PDFInfo
- Publication number
- GB2214835A GB2214835A GB8802735A GB8802735A GB2214835A GB 2214835 A GB2214835 A GB 2214835A GB 8802735 A GB8802735 A GB 8802735A GB 8802735 A GB8802735 A GB 8802735A GB 2214835 A GB2214835 A GB 2214835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensing
- zone
- humidifying
- feed water
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011261 inert gas Substances 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 5
- 239000001307 helium Substances 0.000 claims abstract description 5
- 229910052734 helium Inorganic materials 0.000 claims abstract description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000011780 sodium chloride Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
- B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- 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
-
- 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
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
There is provided a method of desalination comprising passing a flow of gaseous medium through a humidifying zone and then through a condensing (or dehumidifying) zone in succession. Heated saline feed water is supplied to the humidifying zone and this is picked up by the flowing gaseous medium, whence it is transported to the condensing section, distillate being formed on the condensing section and collected. It is a feature of the arrangement that the gaseous medium comprises wholly or substantially an inert gas such as nitrogen, carbon dioxide or helium. Further appropriate apparatus is provided for carrying out the method. <IMAGE>
Description
METHOD AND APPARATUS FOR DESALINATION"
Description
The present invention relates to a method and apparatus for desalination.
It is the principal object of the present invention to provide an improved method of desalination enabling the use of desalination apparatus of a compact form which nevertheless has satisfactory performance efficiency.
According to one aspect of the present invention there is provided a method of desalination comprising creating a flow of gaseous medium comprising substantially an inert gas which passes through a humidifying zone and then passes to a condensing or de-humidifying zone whence the gas passes through said condensing zone; supplying heated saline feed water to the humidifying zone so that the feed water humidifies the gas passing in said humidifying zone whereby humidified gas passes to the condensing zone; and collecting distillate formed by condensing of the humidified gas in said condensing zone.
Preferably the inert gas comprises nitrogen, carbon dioxide or helium.
Preferably the gas is recycled from the condensing zone to the humidifying zone, and the gas flow is preferably created by a fan.
Preferably the feed water supplied to the humidifying zone has a temperature of at least 80 C. In a preferred embodiment the feed water is heated by means of solar energy or by hot water gases from an engine or plant, eg. the exhaust gas of an internal combustion engine, and preferably further the feed water, prior to supply to the humidifying zone, serves as cooling medium in the condensing zone.
Preferably the ratio of the feed water supply rate to the rate of gas flow through the humidifying zone is in the range up to 300 by mass.
According to another aspect of the present invention desalination apparatus comprises a casing structure defining base receiver means, a head part, and column means extending between said base receiver means and the head part; said column means including a humidifying section and a separate condensing or dehumidifying section; ducting in the head part for fluid communication between the humidifying and condensing sections; a feed water distributor in the upper end of the humidifying section for the provision of a downward spray of feed water in the humidifying section; a feed inlet to said distributor; a gas inlet at the lower end of the humidifying section; and cooling means in said condensing or dehumidifying section; said base receiver means including a recepticle for distillate discharged from said condensing or dehumidifying section.
Preferably a recirculation duct is provided for recirculation of gas from the condensing section to the humidifying section. Said condensing or dehumidifying section preferably comprising a direct or indirect type tube or spray device or combination thereof.
Preferably the apparatus includes heating means for the feed water, and preferably said heating means is connected to the cooler of the condensing section whereby feed water is heated in the cooler prior to delivery to said heating means.
The heating means may comprise a solar energy heater or alternatively may comprise a heat exchanger receiving heating medium from a hot waste - gas source.
In a preferred embodiment, means are provided for creating sub-atmospheric pressure conditions in at least one of the humidifying and condensing sections. A fan is preferably provided for gas flow in the apparatus.
Embodiments of the present invention will now be described by way of example with reference to the accompanying drawings wherein :
Fig. 1 shows schematically desalination apparatus for carrying out the method of the present invention;
Fig. 2 is an elevation of a commercial form of desalination apparatus in accordance with the present invention;
Fig. 3 shows schematically a further embodiment of desalination apparatus of the present invention;
Fig. 4 shows the graph of maximun humidifier temperature against Total Volume of moist-air in connection with desalination apparatus operating at or around atmospheric pressure;
Fig. 5 shows schematically a further embodiment of the invention; and
Fig. 6 shows schematically yet a further embodiment of the present invention.
Referring to Fig. 1, a method of desalination is carried out in desalination apparatus 1. The apparatus 1 includes a humidifier zone 2, a condensing or dehumidifying zone 3 and an upper duct 4 fluidly connecting the zones 2, 3. The humidifier zone 2 is of cooling tower form and includes a water distributor 5 at the upper end and a gas inlet 6 at the lower end. A recirculation duct 7 connects the condenser zone 3 to the gas inlet 6, and a fan8 is intercalated in the duct 7 and operates to create a flow of gas through the humidifier zone 2, through the upper duct 4 and whence through the condenser zone 3 (as shown by the arrows).A cooler (not shown) is provided in the condenser zone 3 and saline feed water and/or fresh water and/or distillate water is used for the cooling medium therein, the feed water discharged from the cooler passing to a heat exchanger 9 wherein the feed water is further heated, for example by heating medium flowing in conduit 9A, whence the heated feed water flows to the distributor 5. For reasons that will be explained later, an inert gas is chosen as the recirclating gas, the inert gas comprising for example nitrogen, carbon dioxide or helium.
In operation, upwardly flowing inert gas in the humidifier zone 2 meets a downward spray of heated feedwater from the distributor 5 so that the gas is humidified by the water spray, and the humidified gas flows to the condensing zone 3 via the duct 4. The humidified gas is cooled in the condenser zone 3 resulting in distillate being precipitated from the gas, and this distillate is collected in receiver 10. The cooled gas is recirculated to the humidifier zone 2 via the recirculation duct 7, while concentrated brine precipitated in the humidifier zone 2 is collected in receiver 11. The humidifying and condensing zones 2 can be at any suitable pressure.
In the case where air is used in the apparatus of
Fig. 1 rather than inert gas, figure 4 shows the relationship of maximum temperature in the humidifier zone 2 (TH)OC against total volume of moist air at atmospheric pressure (per one Kg dry air) in M3(VM) for a process operating around atmospheric pressure. Similar curves can be developed for processes operating at average pressures which are different (i.e. higher or lower than atmospheric pressure). In particular the curve AB represents the ideal profile for a partial pressure dehumidifier (or condenser) or partial pressure humidifier. It will be noted that the curve AB flattens as the curve approaches the TH = 1000C value, and in fact the closer the temperature TH is to 1000C the lesser the amount of air to be circulated so that the air becomes a mere circulating agent and possibly also a heat transfer augmenting agent. It is preferred therefore that the feed water is heated to a temperature of at least 800C to encourage this characteristic. However with the utilisation of a high temperature as above and with oxygen (of the air) circulating in the recirculation loop there arises the definite risk of corrosion or erosion in the apparatus. Therefore in the present desalination method an inert gas is used instead of air, for the circulating gas, the inert gas comprising for example nitrogen, carbon dioxide or helium.
With regard to optimum performance ratio, it is preferred that the ratio of the feed water rate to the rate of circulating gas flowing into the humidifier zone lies in the range up to 300 by mass.
Fig. 2 shows a suitable commercial apparatus 15 for carrying out the inventive desalination method. Parts equivalent to parts in the schematic figure 1 carry like reference numerals. Thus the apparatus 15 comprises a casing structure 16 including a liquid-receiving base part 17 and a head part 18, the parts 17 and 18 being joined by a necked formation 19 defining a column means.
An upright partition wall 20 extends through the column means 19 to separate the humidifier section 2 from the condensing or dehumidifying section 3.
The humidifier section 2 houses infringment plates 21 or fill plates to encourage the humidifying action, while a suitable cooler 22 is present in the condensing section 3. A demister filter 23 can be located in the duct 4 in the path of the humidified gas flowing to the condensing section 3. The cooler 22 includes a bottom inlet 22A for cooling medium and a top cooling medium outlet 22B, and as explained above it is preferred that the cooling medium is constituted by the saline feed water to enable preheating of the feed water. Alternatively fresh water or distillate water could be used, or indeed a combination of any of the three could be utilised.A port 24 is provided at the bottom of the condensing section 3 for discharge of the circulating gas, and for the closed loop this port 24 is connected to the gas inlet port 6 in the section 2 in the manner of Fig. 1 viz by duct 7: and again a circulating fan can be provided in the recirculation duct. For increased performance efficiency, a high level of thermal insulation will be applied to the casing structure 16.
To heat the pre-heated feed water to a satisfactory entry temperature the feed water is fed from the cooler 22 to a suitable heat exchanger apparatus (per the heat exchanger 9 of Fig. 1). It is particularly preferred that solar energy be used in the further heating up of the feed water, and suitable heating apparatus 25 utilising solar energy is shown in Fig. 3. In the apparatus 25, the feed water is heated indirectly by means of a secondary heating fluid. Thus the apparatus 25 includes a heat exchanger 9 in the form of a solar boiler to the heat withdrawal side 9A of which the feed water is fed, the heat input side 9B of the heat exchanger receiving heating medium neated by solar energy in a heating circuit 26.
By this arrangement, a fluid more compatable with solar energy collection such as "black" liquid (ie liquid with high carbon content) can be used as the secondary heating medium in the circuit 26. The apparatus 25 includes solar collectors 27 and a thermal storage vessel 28.
The collectors 27 may be of the evacuated tube type but it is particularly preferred that parabolic trough type collectors are used since these are believed to give more satisfactory performance for the relatively high input temperatures envisaged by the present invention.
Fig. 5 shows a further embodiment of the desalination apparatus. In this case an integrated solar collector arrangement 29 is used in place of the apparatus 25 of Fig. 3. As can be seen the collector 29 is mounted directly on the casing structure 16 and this will have the advantage of reducing pipeline heat loss.
In Fig. 6 heating of the preheated feed water is achieved by utilising hot waste gases from a plant, specifically the exhaust gases of an internal combustion engine. Thus in this embodiment the heat exchanger 9 is in the form of an exhaust boiler and the heat input side 9B utilises exhaust gases from an I.C. engine 30 (eg. a diesel engine) as the heating medium.
Of course a combination of solar heating and any or many of waste heat supplies for heating the feed water can be embodied for the operation of the desalinator according to the present invention.
Considering the apparatus 15 of Fig. 2, it will be clear that the present invention enables the provision of a desalinator of a very compact dimension, and with realistic heat transfer and evaporation conditions, performance ratios between 8 to 18 can be achieved - which is comparable with the performance ratios of multi-stage flash desalinators.
Closed loop gas flow has been shown, but open-loop flow can be easily obtained simply by removing the ducting between ports 6 and 24 (Fig. 2): the fan (8) will be repositioned eg. at entry to port 6, or exit to port 7.
Of course, instead of having a recirculating gaseous medium comprising wholly an inert gas a gaseous mixture may be used wherein an inert gas predominates.
Claims (18)
1. A method of desalination comprising creating a flow of gaseous medium comprising substantially an inert gas which passes through a humidifying zone and then passes to a condensing or dehumidifying zone whence the gas passes through said condensing zone; supplying heated saline feed water to the humidifying zone so that the feed water humidifies the gas passing in said humidifying zone whereby humidified gas passes to the condensing zone; and collecting distillate formed by condensing of the humidified gas in said condensing zone.
2. A method as claimed in claim 1, wherein the inert gas comprises nitrogen, carbon dioxide or helium.
3. A method as claimed in claim 1 or claim 2, wherein the gas is recycled from the condensing zone to the humidifying zone.
4. A method as claimed in any one of claims 1 to 3, wherein the gas flow is created by a fan.
5. A method as claimed in any one of the preceding claims, wherein the feed water supplied to the humidifying zone has a temperature of at leat 800C.
6. A method as claimed in any one of the preceding claims, wherein the feed water is heated by means of solar energy or by hot water gases from an engine or plant.
7. A method as claimed in any one of the preceding claims, wherein the feed water, prior to supply to the humidifying zone, serves as cooling medium in the condensing zone.
8. A method as claimed in any one of the preceding claims, wherein the ratio of the feed water supply rate to the rate of gas flow through the humidifying zone is in the range up to 300 by mass.
9. Desalination apparatus comprising a casing structure defining base receiver means, a head part, and column means extending between said base receiver means and the head part; said column means including a humidifying section and a separate condensing or dehumidifying section; ducting in the head part for fluid communication between the humidifying and condensing sections; a feed water distributor in the upper end of the humidifying section for the provision of a downward spray of feed water in the humidifying section; a feed inlet to said distributor; a gas inlet at the lower end of the humidifying section; and cooling means in said condensing or dehumidifying section; said base receiver means including a recepticle for distillate discharged from said condensing or dehumidifying section.
10. Desalination apparatus as claimed in claim 9, wherein a recirculation duct is provided for recirculation of gas from the condensing section to the humidifying section.
11. Desalination apparatus as claimed in claim 9 or 10, wherein said condensing or dehumidifying section comprises a direct or indirect type tube or spray device or combination thereof.
12. Desalination apparatus as claimed in any one of claims 9 to 11, wherein the apparatus includes heating means for the feed water.
13. Desalination apparatus as claimed in claim 12, wherein said heating means is connected to the cooler of the condensing section whereby feed water is heated in the cooler prior to delivery to said heating means.
14. Desalination apparatus as claimed in claim 12 or 13, wherein said heating means comprises a solar energy heater or a heat exchanger receiving heating medium from a hot waste-gas source.
15. Desalination apparatus as claimed in any one of claims 9 to 14, wherein means are provided for creating sub-atmospheric pressure conditions in at least one of the humidifying and condensing sections.
16. Desalination apparatus as claimed in any one of the preceding claims, wherein a fan is provided for gas flow in the apparatus.
17. A method of desalination as claimed in claim 1 and substantially as hereinbefore described.
18. Distillation apparatus substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8802735A GB2214835A (en) | 1988-02-06 | 1988-02-06 | Method and apparatus for desalination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8802735A GB2214835A (en) | 1988-02-06 | 1988-02-06 | Method and apparatus for desalination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8802735D0 GB8802735D0 (en) | 1988-03-09 |
| GB2214835A true GB2214835A (en) | 1989-09-13 |
Family
ID=10631234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8802735A Withdrawn GB2214835A (en) | 1988-02-06 | 1988-02-06 | Method and apparatus for desalination |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2214835A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992019542A1 (en) * | 1991-04-26 | 1992-11-12 | Manuel Lumbreras Y Gimenez | Method and apparatus for seawater potabilization |
| US5290403A (en) * | 1987-03-17 | 1994-03-01 | Saeaesk Aapo | Liquid evaporating apparatus |
| ES2323340A1 (en) * | 2006-08-23 | 2009-07-13 | Jacinto Manuel Portillo Cueva | System of desalation of water by solar energy (Machine-translation by Google Translate, not legally binding) |
| US20130233697A1 (en) * | 2012-03-09 | 2013-09-12 | Halliburton Energy Services, Inc. | Process for Water Treatment and Generation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981003655A1 (en) * | 1980-06-11 | 1981-12-24 | Mitsubishi Electric Corp | Apparatus for desalinizing brine |
-
1988
- 1988-02-06 GB GB8802735A patent/GB2214835A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981003655A1 (en) * | 1980-06-11 | 1981-12-24 | Mitsubishi Electric Corp | Apparatus for desalinizing brine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5290403A (en) * | 1987-03-17 | 1994-03-01 | Saeaesk Aapo | Liquid evaporating apparatus |
| WO1992019542A1 (en) * | 1991-04-26 | 1992-11-12 | Manuel Lumbreras Y Gimenez | Method and apparatus for seawater potabilization |
| ES2323340A1 (en) * | 2006-08-23 | 2009-07-13 | Jacinto Manuel Portillo Cueva | System of desalation of water by solar energy (Machine-translation by Google Translate, not legally binding) |
| US20130233697A1 (en) * | 2012-03-09 | 2013-09-12 | Halliburton Energy Services, Inc. | Process for Water Treatment and Generation |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8802735D0 (en) | 1988-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |