WO2008153274A1 - Preparation method of mineral water and mineral salt from deep ocean water - Google Patents
Preparation method of mineral water and mineral salt from deep ocean water Download PDFInfo
- Publication number
- WO2008153274A1 WO2008153274A1 PCT/KR2008/002511 KR2008002511W WO2008153274A1 WO 2008153274 A1 WO2008153274 A1 WO 2008153274A1 KR 2008002511 W KR2008002511 W KR 2008002511W WO 2008153274 A1 WO2008153274 A1 WO 2008153274A1
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- WO
- WIPO (PCT)
- Prior art keywords
- water
- mineral
- ocean water
- exchange membrane
- deep ocean
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 202
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 92
- 239000011707 mineral Substances 0.000 title claims abstract description 92
- 150000003839 salts Chemical class 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title description 20
- 239000012528 membrane Substances 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000011575 calcium Substances 0.000 claims abstract description 29
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 25
- 238000005341 cation exchange Methods 0.000 claims abstract description 24
- 239000003011 anion exchange membrane Substances 0.000 claims abstract description 18
- 238000001704 evaporation Methods 0.000 claims abstract description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 159000000007 calcium salts Chemical class 0.000 claims description 18
- 229910001576 calcium mineral Inorganic materials 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 13
- 229910001607 magnesium mineral Inorganic materials 0.000 claims description 10
- 229910001577 potassium mineral Inorganic materials 0.000 claims description 10
- 208000004434 Calcinosis Diseases 0.000 claims description 6
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 abstract description 22
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 17
- 238000000909 electrodialysis Methods 0.000 abstract description 16
- 238000010612 desalination reaction Methods 0.000 abstract description 15
- 238000005868 electrolysis reaction Methods 0.000 abstract description 12
- 230000003204 osmotic effect Effects 0.000 abstract description 11
- 229910052697 platinum Inorganic materials 0.000 abstract description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052737 gold Inorganic materials 0.000 abstract description 7
- 239000010931 gold Substances 0.000 abstract description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 239000004332 silver Substances 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 150000001450 anions Chemical class 0.000 description 21
- 150000001768 cations Chemical class 0.000 description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 18
- 230000008569 process Effects 0.000 description 15
- 239000011780 sodium chloride Substances 0.000 description 9
- 239000012267 brine Substances 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 6
- -1 specific minerals Chemical class 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 235000012206 bottled water Nutrition 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 208000001145 Metabolic Syndrome Diseases 0.000 description 1
- 206010061291 Mineral deficiency Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/38—Other non-alcoholic beverages
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
- A23L2/78—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by ion-exchange
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
- A23L2/72—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by filtration
- A23L2/74—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by filtration using membranes, e.g. osmosis, ultrafiltration
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/40—Table salts; Dietetic salt substitutes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
- C02F1/385—Treatment of water, waste water, or sewage by centrifugal separation by centrifuging suspensions
-
- 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
-
- 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
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
- C02F2001/4619—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only cathodic or alkaline water, e.g. for reducing
-
- 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
-
- 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
- Y02A20/131—Reverse-osmosis
Definitions
- the present invention relates to a method of producing mineral water and mineral salt from deep ocean water, and, more particularly, to a method of producing mineral water and mineral salt from deep ocean water, in which minerals, such as magnesium, calcium, salts thereof, etc., are selectively separated from deep ocean water, which has a high mineral content and is not contaminated with chemicals or bacteria, thus adjusting the content of each mineral.
- Background Art
- deep ocean water refers to ocean water present at a place located 200 m or more from the surface of ocean water, and is different from surface ocean water. Since phytoplankton, which ingests nutrients, is not present in deep ocean water, at which solar light does not arrive, deep ocean water is rich in nutrients decomposed by bacteria and includes minerals, such as calcium, magnesium, and the like, in large quantities. That is, deep ocean water is eutrophied and mineralized.
- Deep ocean water which is ocean water present at a place located 200 m or more from the surface of ocean water, has a low organic matter concentration, is not contaminated by coli bacteria or general bacteria, is almost impossible to contaminate by chemicals emitted from land or air, has a constant temperature throughout the year, and is stable because it has formed over several thousand years. Further, since deep ocean water includes essential microelements and various mineral components in balanced amounts, it is known to have an excellent function for efficiently removing active oxygen due to the action of metal ions dissolved therein.
- the salt produced from deep ocean water does not include environmental pollutants, and includes various mineral components useful to the human body having lower concentrations of harmful metals than salt produced from surface ocean water
- deep ocean water is characterized in that high-quality salt, which is good for health, can be produced therefrom.
- mineral salt, including mineral components useful to the human body is produced from deep ocean water, compared to when salt is simply obtained from non-contaminated deep ocean water, the advantages of deep ocean water can be maximized.
- Korean Patent Registration Nos. 663084, 688636, 667968 and 686979 disclose methods of producing mineral salt or mineral water from deep ocean water using electrolysis, electrodialysis, and reverse osmosis.
- these patent documents relate only to methods of producing potable water or salt by removing excess salt (NaCl) from deep ocean water or only to processes of separating monovalent ions or bivalent ions from deep ocean water. Therefore, the technologies disclosed in these patent documents have technical limitations in producing mineral water or mineral salt including specific minerals, such as magnesium, calcium and potassium, other than sodium, in large quantities by selectively separating the specific minerals from deep ocean water.
- Ionized minerals are active minerals which can be used by the human body.
- an object of the present invention is to provide a method of producing mineral water or mineral salt, selectively including minerals, from deep ocean water using electrolysis, electrodialysis, reverse osmosis, and crystallization due to solubility differences therebetween.
- the present invention provides a method of producing mineral water or mineral salt from deep ocean water using desalination processes, in which the desalination processes include a desalination process using electrodialysis, in which monovalent and bivalent cation exchange membranes and monovalent and bivalent anion exchange membranes are sequentially combined, a desalination process using pressure higher than the osmotic pressure of ocean water through reverse osmosis membrane, a desalination process of removing some of the ocean water through evaporation to deposit salt therefrom and then removing the deposited salt, and a desalination process using electrolysis, in which silver, gold or platinum electrodes are used.
- the desalination processes include a desalination process using electrodialysis, in which monovalent and bivalent cation exchange membranes and monovalent and bivalent anion exchange membranes are sequentially combined, a desalination process using pressure higher than the osmotic pressure of ocean water through reverse osmosis membrane, a desalination process
- Various kinds of electrolysis membranes may be used according to the kind of ions to be separated. That is, when monovalent anions and monovalent cations are to be separated, a monovalent anion exchange membrane and a monovalent cation exchange membrane may be used, and, when monovalent anions and bivalent cations are to be separated, a monovalent anion exchange membrane and a bivalent cation exchange membrane may be used. Further, when bivalent anions and monovalent cations are to be separated, a bivalent anion exchange membrane and a monovalent cation exchange membrane may be used.
- the Ca + and Mg + can be separated from the deep ocean water through the bivalent cation exchange membrane.
- the Ca + and Mg + can be separated from each other using the difference in the permeation rate therebetween.
- Desalination treatment using reverse osmotic pressure is performed by applying a high pressure of 50 ⁇ 70 kg/cm, which is higher than the osmotic pressure of ocean water, to ocean water through a semipermeable membrane, thus filtering the ocean water.
- a semipermeable membrane a cellulose membrane or a polyamide membrane may be used.
- ocean water can be turned into fresh water, and in addition, ions are concentrated.
- desalination treatment is performed using the difference in solubility, and, particularly, can be effectively used to separate sodium salt and potassium salt from each other and to separate magnesium salt and calcium salt from each other.
- electrolysis be performed using gold, silver or platinum electrodes.
- FIG. 1 is an entire process view showing the process of producing mineral water or mineral salt from deep ocean water according to the present invention.
- mineral water or mineral salt having a high mineral content, can be produced by selecting necessary processes in the process view.
- the abbreviations used in FIG. 1 are as follows: R/O (reverse osmosis), ED (electrodialysis), E/V (evaporation), M/T (mixed tank), C/F (centrifugal separation), and E/L (electrolysis).
- an aspect of the present invention provides a method of simultaneously producing magnesium mineral water and calcium mineral water, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electro- dialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane; and (C) electrodialyzing the electrodialyzed water using a monovalent cation exchange membrane and a bivalent anion exchange membrane or a bivalent cation exchange membrane and a monovalent anion exchange membrane.
- step (B) since only NaCl and KCl can pass through the ion exchange membranes,
- step (C) SO of Ca + , Mg + and SO remaining in concentrated water during the elec-
- the electrodialysis process may be performed after deep ocean water is merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
- the method of simultaneously producing magnesium mineral water and calcium mineral water may further include, immediately before the step (B): evaporating the filtered ocean water in an evaporator to deposit calcium salts (CaSO and CaCO ) and then removing the deposited calcium salts.
- Another aspect of the present invention provides a method of producing calcium mineral water, including the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) evaporating the filtered ocean water in an evaporator to deposit calcium salt and then filtering the deposited calcium salt; (C) dissolving the filtered calcium salt in permeated water filtered through a reverse osmosis membrane; and (D) electrodialyzing the calcium salt-dissolved permeated water using a monovalent cation exchange membrane and a bivalent anion exchange membrane.
- the electrodialysis process may be performed after deep ocean water is merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
- a further aspect of the present invention provides a method of producing potassium mineral water, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a bivalent cation exchange membrane; and (C) evaporating the electrodialyzed water in an evaporator to deposit sodium salt and then removing the deposited calcium salt by filtering the electrodialyzed water.
- the electrodialysis process may be performed after deep ocean water is merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
- the method of producing potassium mineral water according to a further aspect of the present invention may further include, immediately before the step (B): evaporating the filtered ocean water in an evaporator to deposit calcium salts (CaSO and CaCO ) and
- a still further aspect of the present invention provides a method of producing mineral salt, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane; (C) mixing the electrodialyzed water with the potassium mineral water of claim 6 at a volume ratio of 1:0.5-1.5; and (D) evaporating the mixed mineral water in an evaporator.
- mineral water or mineral salt selectively including minerals
- FIG. 1 is a schematic process view showing a process of producing mineral water or mineral salt from deep ocean water according to the present invention.
- Mode for the Invention
- ICP inductively-coupled plasma mass spectrometry
- ppb parts per billion
- a sample tank was filled with 9L of reverse osmotic concentrated water, an electrolyte tank was filled with 5% of a sodium nitrate solution, and a concentration tank was filled with desalinated water, and then the electrodialyzer was operated.
- the electrodialysis was conducted until about 1 - 50 mS/cm of electric conductivity appeared while changes in electric conductivity were observed.
- a monovalent cation-bivalent anion membrane(AC-120-4G40) was used as an elec- trodialysis membrane, and ACILYZER-2, manufactured by ASTOM CORP., was used as the electrodialyzer.
- Table 1 shows the amount of metal ions according to electric conductivity at the time of electrodialyzing deep ocean water. [39] Table 1 [Table 1] [Table ]
- Example 2 Electrolysis (E/L) [42] IL of a sample was taken, a power supply was set to 0.5 A, and current flowed into the sample for 1 - 5 hours, and then the amount of mineral in the sample was measured.
- Example 3 Reverse osmosis (RO) [50] A deep ocean water supply valve was opened, and then a reverse osmosis membrane was operated. A fouling resistance membrane (FRM, manufactured by Saehan Corp.) was used as the reverse osmosis membrane, and 7 x RE8040SR elements/vessel (commercial plant) was used as a reverse osmosis apparatus. In this case, filter water and concentrated water were produced by controlling the osmotic pressure at a pressure of 50 -70 kg/cm using an osmotic pressure regulator.
- FFM fouling resistance membrane
- RE8040SR elements/vessel commercial plant
- Preparation Example 1 Mg + mineral water
- Ocean water or primary or secondary RO brine was primarily electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove NaCl and KCl therefrom. Subsequently, the resultant product was secondarily electrodialyzed using a monovalent anion membrane and a bivalent cation membrane or a bivalent anion membrane and a monovalent cation membrane to separate Ca + therefrom, thereby preparing Mg + mineral water.
- Preparation Example 2 Mg + -containing mineral water [59] Filtered ocean water or RO brine was sent into an evaporator, and Ca 2 z + + i .ons were removed therefrom, and then Mg + -containing mineral water was prepared using the same method as in Preparation Example 1.
- Ocean water or RO brine was primarily electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove NaCl and KCl therefrom. Subsequently, the resultant product was secondarily electrodialyzed using a monovalent cation membrane and a bivalent anion membrane or a monovalent anion membrane and a bivalent cation membrane, thereby preparing Ca + mineral water using the difference in the permeation rate of Ca + .
- Preparation Example 10 K/Ca/Mg containing mineral salt
- K + mineral water including no NaCl prepared in Preparation Example 5, and Mg + and Ca + containing mineral water, electrodialyzed using a monovalent anion membrane and a monovalent cation membrane, were evaporated using an evaporator, thereby preparing K/Ca/Mg containing mineral salt.
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Abstract
Disclosed herein is a method of producing mineral water or mineral salt from deep ocean water using desalination processes, the desalination processes including a desalination process using electrodialysis in which monovalent and bivalent cation exchange membranes and monovalent and bivalent anion exchange membranes are sequentially combined, a desalination process using pressure higher than the osmotic pressure of ocean water through a reverse osmosis membrane, a desalination process of removing some ocean water through evaporation to deposit salt therefrom and then removing the deposited salt, and a desalination process using electrolysis in which silver, gold or platinum electrodes are used. Provided a method of producing mineral water and mineral salt from deep ocean water, in which minerals, such as magnesium, calcium, salts thereof, etc., are selectively separated from deep ocean water which has a high mineral content and is not contaminated with chemicals or bacteria, thus adjusting the content of each mineral.
Description
Description
PREPARATION METHOD OF MINERAL WATER AND MINERAL SALT FROM DEEP OCEAN WATER
Technical Field
[1] The present invention relates to a method of producing mineral water and mineral salt from deep ocean water, and, more particularly, to a method of producing mineral water and mineral salt from deep ocean water, in which minerals, such as magnesium, calcium, salts thereof, etc., are selectively separated from deep ocean water, which has a high mineral content and is not contaminated with chemicals or bacteria, thus adjusting the content of each mineral. Background Art
[2] The term "deep ocean water" refers to ocean water present at a place located 200 m or more from the surface of ocean water, and is different from surface ocean water. Since phytoplankton, which ingests nutrients, is not present in deep ocean water, at which solar light does not arrive, deep ocean water is rich in nutrients decomposed by bacteria and includes minerals, such as calcium, magnesium, and the like, in large quantities. That is, deep ocean water is eutrophied and mineralized. Deep ocean water, which is ocean water present at a place located 200 m or more from the surface of ocean water, has a low organic matter concentration, is not contaminated by coli bacteria or general bacteria, is almost impossible to contaminate by chemicals emitted from land or air, has a constant temperature throughout the year, and is stable because it has formed over several thousand years. Further, since deep ocean water includes essential microelements and various mineral components in balanced amounts, it is known to have an excellent function for efficiently removing active oxygen due to the action of metal ions dissolved therein.
[3] Due to the useful effects of deep ocean water, various attempts to produce salt and potable water having a high mineral content from the deep ocean water have been made. Since deep ocean water is very salty, it is not suitable for direct ingestion. Therefore, in order to use the deep ocean water, excess salt must be separated from the deep ocean water. However, in the process of separating salt from the deep ocean water, there is a problem in that calcium, magnesium, etc., which are useful mineral components, are removed therefrom along with the salt. Therefore, various attempts to solve the above problem have been made.
[4] Since the salt produced from deep ocean water does not include environmental pollutants, and includes various mineral components useful to the human body having lower concentrations of harmful metals than salt produced from surface ocean water,
deep ocean water is characterized in that high-quality salt, which is good for health, can be produced therefrom. In this case, when mineral salt, including mineral components useful to the human body, is produced from deep ocean water, compared to when salt is simply obtained from non-contaminated deep ocean water, the advantages of deep ocean water can be maximized.
[5] Korean Patent Registration Nos. 663084, 688636, 667968 and 686979 disclose methods of producing mineral salt or mineral water from deep ocean water using electrolysis, electrodialysis, and reverse osmosis. However, these patent documents relate only to methods of producing potable water or salt by removing excess salt (NaCl) from deep ocean water or only to processes of separating monovalent ions or bivalent ions from deep ocean water. Therefore, the technologies disclosed in these patent documents have technical limitations in producing mineral water or mineral salt including specific minerals, such as magnesium, calcium and potassium, other than sodium, in large quantities by selectively separating the specific minerals from deep ocean water.
[6] Ionized minerals are active minerals which can be used by the human body.
Recently, it has been reported that, in the case of mineral supplementation systems, minerals are not ionized, thus decreasing mineral availability to the human body. Since bodily mineral deficiencies differ according to human's physical characteristics, genetic properties and living habits, minerals suitable for human's physical characteristics can be supplied to the human body only when minerals can be selectively separated from deep ocean water. As an example of antagonism between minerals, generally, sodium (Na) and potassium (K) serve an important role of maintaining blood pressure and water content in the body while remaining in balance in the body. Magnesium (Mg) and calcium (Ca) also maintain a balance of content therebetween. As such, when the balance in the body is broken, adult diseases, such as diabetes, metabolic syndromes, and the like, are caused. Therefore, when each mineral component can be selectively separated from deep ocean water including various active minerals, minerals suitable for human's physical characteristics can be easily supplied to the body in a state in which they can be easily absorbed in the body. Disclosure of Invention Technical Problem
[7] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method of producing mineral water or mineral salt, selectively including minerals, from deep ocean water using electrolysis, electrodialysis, reverse osmosis, and crystallization due to solubility differences therebetween.
Technical Solution
[8] In order to accomplish the above object, the present invention provides a method of producing mineral water or mineral salt from deep ocean water using desalination processes, in which the desalination processes include a desalination process using electrodialysis, in which monovalent and bivalent cation exchange membranes and monovalent and bivalent anion exchange membranes are sequentially combined, a desalination process using pressure higher than the osmotic pressure of ocean water through reverse osmosis membrane, a desalination process of removing some of the ocean water through evaporation to deposit salt therefrom and then removing the deposited salt, and a desalination process using electrolysis, in which silver, gold or platinum electrodes are used.
[9] Various kinds of electrolysis membranes may be used according to the kind of ions to be separated. That is, when monovalent anions and monovalent cations are to be separated, a monovalent anion exchange membrane and a monovalent cation exchange membrane may be used, and, when monovalent anions and bivalent cations are to be separated, a monovalent anion exchange membrane and a bivalent cation exchange membrane may be used. Further, when bivalent anions and monovalent cations are to be separated, a bivalent anion exchange membrane and a monovalent cation exchange membrane may be used. That is, in electrodialysis, only monovalent cations selectively permeate a monovalent cation exchange membrane, and only monovalent anions selectively permeate a monovalent anion exchange membrane. Therefore, when electrodialysis is conducted by combining a monovalent cation exchange membrane with a monovalent anion exchange membrane, monovalent cations, such as Na+ and K+, and a monovalent anion, such as Cl", can be selectively removed. In contrast, when electrodialysis is conducted by combining a monovalent cation exchange membrane with a bivalent anion exchange membrane, monovalent cations, such as Na+ and K+, and a monovalent anion, such as SO ", can be selectively removed. Since a bivalent cation exchange membrane passes only Ca + and Mg + included in deep ocean water, the Ca + and Mg + can be separated from the deep ocean water through the bivalent cation exchange membrane. In particular, the Ca + and Mg + can be separated from each other using the difference in the permeation rate therebetween.
[10] Desalination treatment using reverse osmotic pressure is performed by applying a high pressure of 50 ~ 70 kg/cm, which is higher than the osmotic pressure of ocean water, to ocean water through a semipermeable membrane, thus filtering the ocean water. As the semipermeable membrane, a cellulose membrane or a polyamide membrane may be used. As found in the following Examples of the present invention, through the desalination treatment using reverse osmotic pressure, ocean water can be
turned into fresh water, and in addition, ions are concentrated.
[11] After evaporating ocean water to remove some of the water from the ocean water, desalination treatment is performed using the difference in solubility, and, particularly, can be effectively used to separate sodium salt and potassium salt from each other and to separate magnesium salt and calcium salt from each other.
[12] It is preferred that electrolysis be performed using gold, silver or platinum electrodes.
As found in the following Examples of the present invention, when carbon electrodes are used in electrolysis, Cl and SO cannot be efficiently removed, and furthermore, alkaline mineral water cannot be obtained. However, when gold, silver or platinum electrodes are used in electrolysis, Cl and SO can be removed, and alkaline mineral water having a high pH can also be obtained. Among these electrodes, platinum electrodes can be most efficiently used, and, additionally, Na ions can be removed. The process of removing chlorine and producing alkaline water using platinum electrodes and gold electrodes is represented by the following Equation.
[13] Pt + 2NaCl + 2Cl2 → (Na)2PtCl6 (precipitated)
[14] 2Au + 4NaCl + 1/20 + H O → 2NaAuCl (precipitated) + 2NaOH
[15] FIG. 1 is an entire process view showing the process of producing mineral water or mineral salt from deep ocean water according to the present invention. As shown in FIG. 1, mineral water or mineral salt, having a high mineral content, can be produced by selecting necessary processes in the process view. The abbreviations used in FIG. 1 are as follows: R/O (reverse osmosis), ED (electrodialysis), E/V (evaporation), M/T (mixed tank), C/F (centrifugal separation), and E/L (electrolysis).
[16] Specifically, an aspect of the present invention provides a method of simultaneously producing magnesium mineral water and calcium mineral water, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electro- dialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane; and (C) electrodialyzing the electrodialyzed water using a monovalent cation exchange membrane and a bivalent anion exchange membrane or a bivalent cation exchange membrane and a monovalent anion exchange membrane.
[17] In step (B), since only NaCl and KCl can pass through the ion exchange membranes,
NaCl and KCl are removed from the deep ocean water through electrodialysis. In step (C), SO of Ca +, Mg + and SO remaining in concentrated water during the elec-
4 4 trodialysis can be removed, and, simultaneously, magnesium mineral water and calcium mineral water can be separated from each other using the difference in the permeation rate between Mg + and Ca +, thus simultaneously producing the magnesium mineral water and calcium mineral water. [18] In this case, the electrodialysis process may be performed after deep ocean water is
merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
[19] In order to more efficiently separate Mg + and Ca + included in the calcium mineral water and magnesium mineral water, the method of simultaneously producing magnesium mineral water and calcium mineral water according to an aspect of the present invention may further include, immediately before the step (B): evaporating the filtered ocean water in an evaporator to deposit calcium salts (CaSO and CaCO ) and then removing the deposited calcium salts.
[20] Another aspect of the present invention provides a method of producing calcium mineral water, including the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) evaporating the filtered ocean water in an evaporator to deposit calcium salt and then filtering the deposited calcium salt; (C) dissolving the filtered calcium salt in permeated water filtered through a reverse osmosis membrane; and (D) electrodialyzing the calcium salt-dissolved permeated water using a monovalent cation exchange membrane and a bivalent anion exchange membrane.
[21] In this case, the electrodialysis process may be performed after deep ocean water is merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
[22] A further aspect of the present invention provides a method of producing potassium mineral water, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a bivalent cation exchange membrane; and (C) evaporating the electrodialyzed water in an evaporator to deposit sodium salt and then removing the deposited calcium salt by filtering the electrodialyzed water.
[23] In this case, the electrodialysis process may be performed after deep ocean water is merely filtered, but may also be performed after the filtered deep ocean water is concentrated by reverse osmotic pressure.
[24] In order to more efficiently remove calcium included in the potassium mineral water, the method of producing potassium mineral water according to a further aspect of the present invention may further include, immediately before the step (B): evaporating the filtered ocean water in an evaporator to deposit calcium salts (CaSO and CaCO ) and
4 3 then removing the deposited calcium salts.
[25] When the calcium mineral water, magnesium mineral water and potassium mineral water, produced through the above processes, are additionally electrolyzed using silver, gold, or platinum electrodes, respectively, Cl and SO included in the respective mineral waters can be additionally removed, and alkaline mineral waters having high pH, such as alkaline calcium mineral water, alkaline magnesium mineral water and alkaline potassium mineral water, can also be obtained.
[26] When the calcium salts (CaSO and CaCO ), obtained through the process of
4 3 producing mineral water according to the present invention, is dissolved in water and then carbon dioxide (CO ) gas is injected thereinto, carbonated water can also be produced.
[27] A still further aspect of the present invention provides a method of producing mineral salt, comprising the steps of: (A) taking deep ocean water and then filtering the deep ocean water; (B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane; (C) mixing the electrodialyzed water with the potassium mineral water of claim 6 at a volume ratio of 1:0.5-1.5; and (D) evaporating the mixed mineral water in an evaporator.
Advantageous Effects
[28] According to the present invention, mineral water or mineral salt, selectively including minerals, can be produced from deep ocean water through electrodialysis, electrolysis, reverse osmosis, or crystallization due to differences in solubility. Brief Description of the Drawings
[29] FIG. 1 is a schematic process view showing a process of producing mineral water or mineral salt from deep ocean water according to the present invention. Mode for the Invention
[30] Hereinafter, the present invention will be described in detail with reference to the following Examples.
[31] A better understanding of the present invention may be obtained through the following examples, which are set forth to illustrate, but are not to be construed as the limit of the present invention.
[32]
[33] Examples
[34] In the following examples, cations were analyzed using inductively-coupled plasma
(ICP), and parts per billion (ppb) thereof were measured using inductively-coupled plasma mass spectrometry (ICP-MS). Further, anions were quantitatively determined using ion chromatography.
[35]
[36] Example 1: Electrodialysis (ED)
[37] A sample tank was filled with 9L of reverse osmotic concentrated water, an electrolyte tank was filled with 5% of a sodium nitrate solution, and a concentration tank was filled with desalinated water, and then the electrodialyzer was operated. The electrodialysis was conducted until about 1 - 50 mS/cm of electric conductivity appeared while changes in electric conductivity were observed. In this case, a monovalent cation-bivalent anion membrane(AC-120-4G40) was used as an elec-
trodialysis membrane, and ACILYZER-2, manufactured by ASTOM CORP., was used as the electrodialyzer.
[38] The following Table 1 shows the amount of metal ions according to electric conductivity at the time of electrodialyzing deep ocean water. [39] Table 1 [Table 1] [Table ]
[40] [41] Example 2: Electrolysis (E/L) [42] IL of a sample was taken, a power supply was set to 0.5 A, and current flowed into the sample for 1 - 5 hours, and then the amount of mineral in the sample was measured.
[43] The following Tables 2 to 5 show the results of analysis of the amount (ppm) of mineral in the sample according to the electrolysis time using carbon electrodes, silver electrodes, gold electrodes and platinum electrodes, respectively.
[44] Table 2 [Table 2] [Table ]
[46] Table 4 [Table 4] [Table ]
[47] Table 5 [Table 5] [Table ]
[48] [49] Example 3: Reverse osmosis (RO) [50] A deep ocean water supply valve was opened, and then a reverse osmosis membrane was operated. A fouling resistance membrane (FRM, manufactured by Saehan Corp.) was used as the reverse osmosis membrane, and 7 x RE8040SR elements/vessel (commercial plant) was used as a reverse osmosis apparatus. In this case, filter water
and concentrated water were produced by controlling the osmotic pressure at a pressure of 50 -70 kg/cm using an osmotic pressure regulator.
[51] The amount of ions in the filter water and concentrated water after the reverse osmosis treatment are shown in Table 6. [52] Table 6 [Table 6] [Table ]
[53] [54] Preparation Examples [55] Preparation Example 1 : Mg + mineral water [56] Ocean water or primary or secondary RO brine was primarily electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove NaCl and KCl therefrom. Subsequently, the resultant product was secondarily electrodialyzed using a monovalent anion membrane and a bivalent cation membrane or a bivalent anion membrane and a monovalent cation membrane to separate Ca + therefrom, thereby preparing Mg + mineral water.
[57] [58] Preparation Example 2: Mg +-containing mineral water [59] Filtered ocean water or RO brine was sent into an evaporator, and Ca 2z++ i .ons were removed therefrom, and then Mg +-containing mineral water was prepared using the same method as in Preparation Example 1.
[60] [61] Preparation Example 3: Ca +-containing mineral water
[62] Ocean water was taken and then filtered. Subsequently, CaSO and CaCO , obtained by evaporating RO brine or ocean water, was mixed with permeated water that had been passed through primary and secondary reverse osmosis (RO) processes, and was then dissolved therein. Subsequently, the resultant was electrodialyzed using a bivalent anion membrane and a monovalent cation membrane to remove SO and CO ,
4 3 thereby preparing Ca +-containing mineral water.
[63]
[64] Preparation Example 4: Ca + mineral water
[65] Ocean water or RO brine was primarily electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove NaCl and KCl therefrom. Subsequently, the resultant product was secondarily electrodialyzed using a monovalent cation membrane and a bivalent anion membrane or a monovalent anion membrane and a bivalent cation membrane, thereby preparing Ca + mineral water using the difference in the permeation rate of Ca +.
[66]
[67] Preparation Example 5: K+ mineral water
[68] Ocean water or RO brine was electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to separate NaCl and KCl therefrom. Subsequently, the resultant product was sent into an evaporator to separate NaCl in a crystallized state, thereby preparing K+ mineral water.
[69]
[70] Preparation Example 6: K+ mineral water
[71] Filtered ocean water or RO brine was sent into an evaporator, and Ca + ions were previously removed therefrom, and then the remainder was electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove NaCl and KCl therefrom, as in Preparation Example 5. Subsequently, the resultant product was further electrodialyzed using a monovalent anion membrane and a monovalent cation membrane, thereby preparing K+ mineral water.
[72]
[73] Preparation Example 7: Alkaline mineral water
[74] Cl and SO were removed from the mineral water prepared in Preparation
Examples 1 to 6 using an electrolyzer, thereby preparing alkaline mineral water having a ph of 7.8 ~ 11.
[75]
[76] Preparation Example 8: Mg +, Ca +, K+ mineral water
[77] Ocean water or RO brine was electrodialyzed using a monovalent anion membrane and a monovalent cation membrane to remove bivalent anions, such as B, SO and CO , thereby preparing Mg +, Ca +, K+ mineral water of Preparation Examples 1 to 6,
respectively.
[78] [79] Preparation Example 9: Mineral carbonated water [80] CO was injected into CaSO and CaCO , obtained by evaporating RO brine or ocean water in Preparation Examples 2 and 6, thereby preparing mineral carbonated water.
[81] [82] Preparation Example 10: K/Ca/Mg containing mineral salt [83] K+ mineral water including no NaCl, prepared in Preparation Example 5, and Mg + and Ca + containing mineral water, electrodialyzed using a monovalent anion membrane and a monovalent cation membrane, were evaporated using an evaporator, thereby preparing K/Ca/Mg containing mineral salt.
[84] [85] The amount of ion in mineral water of Preparation Examples is shown in Table 7. [86] Table 7 [Table 7] [Table ]
Industrial Applicability
[88] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims
[1] A method of simultaneously producing magnesium mineral water and calcium mineral water, comprising:
(A) taking deep ocean water and then filtering the deep ocean water;
(B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane; and
(C) electrodialyzing the electrodialyzed water using a monovalent cation exchange membrane and a bivalent anion exchange membrane or a bivalent cation exchange membrane and a monovalent anion exchange membrane.
[2] The method of simultaneously producing magnesium mineral water and calcium mineral water according to claim 1, further comprising, between (A) and (B): concentrating the filtered ocean water using reverse osmosis pressure.
[3] The method of simultaneously producing magnesium mineral water and calcium mineral water according to claim 1 or 2, further comprising, immediately before (B): evaporating the filtered ocean water in an evaporator to deposit calcium salt and then removing the deposited calcium salt.
[4] A method of producing calcium mineral water, comprising:
(A) taking deep ocean water and then filtering the deep ocean water;
(B) evaporating the filtered ocean water in an evaporator to deposit calcium salt and then filtering the deposited calcium salt;
(C) dissolving the filtered calcium salt in permeated water filtered through a reverse osmosis membrane; and
(D) electrodialyzing the calcium salt-dissolved permeated water using a monovalent cation exchange membrane and a bivalent anion exchange membrane.
[5] The method of producing calcium mineral water according to claim 4, further comprising, between (A) and (B): concentrating the filtered ocean water using reverse osmosis pressure.
[6] A method of producing potassium mineral water, comprising:
(A) taking deep ocean water and then filtering the deep ocean water;
(B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a bivalent cation exchange membrane; and
(C) evaporating the electrodialyzed water in an evaporator to deposit sodium salt and then removing the deposited calcium salt by filtering the electrodialyzed water.
[7] The method of producing potassium mineral water according to claim 6, further
comprising, between (A) and (B): concentrating the filtered ocean water using reverse osmosis pressure. [8] The method of producing potassium mineral water according to claim 6 or 7, further comprising, immediately before (B): evaporating the filtered ocean water in an evaporator to deposit calcium salt and then removing the deposited calcium salt. [9] A method of producing mineral salt, comprising:
(A) taking deep ocean water and then filtering the deep ocean water;
(B) electrodialyzing the filtered ocean water using a monovalent cation exchange membrane and a monovalent anion exchange membrane;
(C) mixing the electrodialyzed water with the potassium mineral water of claim 6 at a volume ratio of 1:0.5-1.5; and
(D) evaporating the mixed mineral water in an evaporator.
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WO2013036354A1 (en) * | 2011-09-08 | 2013-03-14 | General Electric Company | Desalination system and method |
US20160250597A1 (en) * | 2014-02-17 | 2016-09-01 | Zhiqian YE | A calcium ion separation device |
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JP2011242036A (en) * | 2010-05-17 | 2011-12-01 | Hitachi Plant Technologies Ltd | Air conditioner and system using deep seawater |
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CN113371793B (en) * | 2021-07-26 | 2022-06-24 | 中国海洋大学 | Method for enriching beneficial elements in deep seawater |
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