WO2013180368A1 - 해수 전기분해 알칼리 수로부터 마그네슘염과 칼슘염을 포함한 미네랄 염의 분리 및 이를 이용한 미네랄음료의 제조방법 - Google Patents

해수 전기분해 알칼리 수로부터 마그네슘염과 칼슘염을 포함한 미네랄 염의 분리 및 이를 이용한 미네랄음료의 제조방법 Download PDF

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WO2013180368A1
WO2013180368A1 PCT/KR2012/011424 KR2012011424W WO2013180368A1 WO 2013180368 A1 WO2013180368 A1 WO 2013180368A1 KR 2012011424 W KR2012011424 W KR 2012011424W WO 2013180368 A1 WO2013180368 A1 WO 2013180368A1
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Prior art keywords
water
mineral
salt
magnesium
seawater
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PCT/KR2012/011424
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English (en)
French (fr)
Korean (ko)
Inventor
문덕수
김현주
이승원
정동호
이호생
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한국해양과학기술원
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Priority claimed from KR1020120057337A external-priority patent/KR101367477B1/ko
Priority claimed from KR1020120057345A external-priority patent/KR101295445B1/ko
Application filed by 한국해양과학기술원 filed Critical 한국해양과학기술원
Priority to JP2015503096A priority Critical patent/JP5919432B2/ja
Publication of WO2013180368A1 publication Critical patent/WO2013180368A1/ko

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    • 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
    • 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
    • A23L2/52—Adding ingredients
    • 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
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2200/00—Function of food ingredients
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/026—Treating water for medical or cosmetic purposes
    • 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
    • Y02A20/131—Reverse-osmosis

Definitions

  • the present invention adjusts the hydrogen ion concentration of alkaline water produced by electrolysis of seawater or deep seawater and concentrated seawater to form calcium salt and magnesium salt precipitates for each hydrogen ion concentration and low energy of seawater or deep sea water and concentrated water in the sedimentation tank.
  • the present invention relates to a method for separating and extracting calcium salts and magnesium salts, and a method for preparing mineral salts and mineral drinks using the same.
  • deep ocean water is a seawater that exists at a depth of 200m or more, where sunlight does not reach, and it is separated by the ocean physical structure that is far from the coast and does not mix with the atmosphere or surface water (river water) due to surface and water temperature and density difference.
  • deep ocean water is known to be a marine water resource that has been kept clean for a long time because it is structurally blocked from contaminating inflow sources such as human origin chemical pollutants (organic compounds such as pathogens and fertilizer pesticides).
  • deep sea water contains various minerals such as zinc, selenium, and manganese, as well as four major minerals (magnesium, calcium, potassium, and sodium), which are known to be useful as natural mineral raw materials through water quality control desalination. have.
  • Minerals such as calcium, magnesium and potassium are one of the five major nutrients required by humans as important elements that play a role in body composition and function of the body.
  • calcium is responsible for bone and tooth formation, muscle, nerve and heart function, blood coagulation, etc., deficiency constipation, osteoporosis, developmental disorders, spasms, cavities, nerves Symptoms such as anxiety occur.
  • Magnesium Magnesium (Magnesium, Mg 2+ ) performs the functions of energy production, nervous function control, vitamin B, E metabolism, etc.In deficiency, heart disease, hypertension, nephrolithiasis, insomnia, arrhythmia, hypotension, loss of appetite, muscle pain, Anemia and the like.
  • Potassium performs functions such as regulating intracellular acid group balance, controlling water, maintaining nerve function, preserving cellular function, expanding blood vessels, and supplying oxygen to the brain, and deficiency of arrhythmia, loss of appetite, and muscle spasms. , Constipation, fatigue, asthenia, hypoglycemia, etc. occur.
  • Seawater desalination methods include evaporation, reverse osmosis and electrodialysis.
  • the evaporation method uses the principle of evaporating seawater to evaporate the solvent and the solute.
  • the reverse osmosis membrane method removes salt from the ionic substance dissolved in water using a membrane membrane and passes only pure water.
  • anion membranes and cationic membranes are alternately arranged, and a DC voltage is applied to electrodes positioned at both ends of the anion membrane and the cationic membrane to remove cations and anions to obtain pure fresh water.
  • the conventional method of extracting minerals from seawater was to extract minerals from seawater by separating the mineral salts such as calcium salts and magnesium salts by evaporating and concentrating seawater (deep water).
  • the present invention removes chlorine ions and sulfate ions from seawater or deep sea water and separates and extracts useful minerals such as calcium, magnesium and potassium, and at the same time increases the recovery rate of useful mineral constituents to reduce the energy while increasing the purity of mineral salts.
  • the present invention relates to an efficient separation extraction method and a method for producing a high hardness mineral beverage meeting the drinking water quality standard using the same.
  • the present invention generates precipitates of calcium salts and magnesium for each hydrogen ion concentration in alkaline water adjusted by hydrogen ion electrolysis method (pH) from sodium water (sea deep water) in the precipitation tank
  • PH hydrogen ion electrolysis method
  • the method for producing mineral salts according to the present invention can separate and extract high purity mineral calcium salts and magnesium salts from seawater or deep sea water with low cost energy, and separate the mineral salts, chlorine and sulfate ions into the water quality standards for drinking water. It is possible to produce suitable high hardness mineral water, and to efficiently produce mineral raw materials of various products including useful minerals such as calcium and magnesium in seawater.
  • 1 is an overall process diagram showing a method for preparing mineral salts and mineral water in the electrolytic alkaline water of the present invention.
  • FIG. 2 is a schematic diagram of a membrane-free electrolysis device for generating electrolyzed water for generating electrolyzed water and adjusting hydrogen ion concentration (pH).
  • Figure 3 is a sedimentation separation tank for separating the mineral salt produced in the hydrogen ion concentration adjusted alkaline water.
  • Figure 4 is a process chart combining the NF-RO-ED process and MVR-precipitation separation process for improving the mineral salt production yield.
  • Figure 5 is a photograph showing the membrane-free electrolytic decomposition device and each structure of the electrolytic water generation.
  • Figure 6 shows the concentration changes of magnesium and calcium in the mineral salts formed for each hydrogen ion concentration.
  • the present invention is to adjust the pH in the alkaline water produced by electrolysis of seawater (deep sea water or concentrated water) to produce a magnesium salt and calcium salt precipitate to concentrate and separate the natural mineral food raw material and It relates to a method for producing mineral-added raw materials of deep sea water to eat.
  • the pretreatment of step 1) may be any one or more selected from sand filtration, rapid filtration membrane, micro filter (MF), immersion membrane filter (SMF), and ultra filter (UF), and the primary treatment is reverse osmosis membrane.
  • MF micro filter
  • SMF immersion membrane filter
  • UF ultra filter
  • the primary treatment is reverse osmosis membrane.
  • RO concentrated water and production water using
  • step 2) after the first treatment of reverse osmosis membrane (RO) or electrodialysis membrane, electrolyzed concentrated water to prepare acidic and alkaline water, instead of concentrated water, raw water of seawater or deep seawater or concentrated water using NF-RO. And it may further comprise the step of preparing acidic water and alkaline water after electrolysis using mineral concentrated water produced by the reduced pressure evaporation distillation method.
  • RO reverse osmosis membrane
  • electrod concentrated water to prepare acidic and alkaline water, instead of concentrated water, raw water of seawater or deep seawater or concentrated water using NF-RO.
  • it may further comprise the step of preparing acidic water and alkaline water after electrolysis using mineral concentrated water produced by the reduced pressure evaporation distillation method.
  • a certain ratio of step 5) is a magnesium / calcium ratio of 0.01-40.72, useful mineral salt prepared in this step is useful minerals, characterized in that the addition of at least one additive selected from citric acid, vitamin preparation, orange powder Methods of preparing salts are provided.
  • a method of preparing a mineral supplement beverage by dissolving citric acid or orange extract in the production water of step 6) may be added.
  • the mineral beverage production method by producing a by-product in the step of producing an alkaline water of hydrogen ion concentration (pH) 10 to 13 by adjusting the amount of current when the alkaline water of step 3)
  • the acidic water can be transformed into a step that can be used as a disinfectant.
  • the mineral supplement tablet or powder product may be added by adding citric acid, vitamin preparation, orange powder, etc. to a useful mineral salt preparation method of adjusting calcium and magnesium concentrations by mixing calcium salt and magnesium salt of step 5). It can be modified by the manufacturing method of.
  • the production of concentrated water in step 1) includes preparing first concentrated water and primary produced water by passing seawater or deep sea water through a reverse osmosis membrane (RO) after pretreatment; By passing the first concentrated water back to the ion exchange membrane (ED) it can be made to produce a high concentration of the second concentrated water, characterized in that the amount of current flowing during the electrolysis of step 2) is 50-260 mA.
  • RO reverse osmosis membrane
  • the concentrated water of step 1) is a pre-treatment process using a nano-filter (NF), ultra-filter (UF) membrane to remove only sulfate ions (SO4) and the remaining sodium, magnesium, calcium, potassium, chlorine ions are permeated
  • NF nano-filter
  • UF ultra-filter
  • SO4 sulfate ions
  • SO4 sodium, magnesium, calcium, potassium, chlorine ions
  • RO reverse osmosis membrane
  • a method for producing a mineral beverage in which the components of the calcium salt are adjusted can be provided.
  • FIG. 1 is an overall process diagram showing a method for producing mineral salts and mineral water in the electrolytic alkaline water of the present invention
  • Figure 2 is a membrane-free electrolysis device for generating electrolytic water for the production of electrolytic water and hydrogen ion concentration (pH) adjustment
  • the schematic diagram of the is shown.
  • the mineral water of the present invention is meant to include bottled water and various beverages, the method of producing mineral water of the present invention by passing the seawater (sea deep sea water) through the primary RO (reverse osmosis membrane) after pretreatment, the primary concentrated water and primary Preparing a production water and passing the first concentrated water through ED (ion exchange membrane) to produce a second concentrated water of high concentration.
  • the flow of the whole process of the present invention is pre-treatment of seawater or deep seawater (filtered by sand filtration, rapid filtration membrane, micro filter (MF), immersion membrane filter (SMF), ultra filter (UF), etc.), RO (reverse osmosis membrane) Concentrated and produced water by passing through NF-RO membrane (nano filter-reverse osmosis composite membrane), electrodialysis membrane (ED) and electrolyzed concentrated water as it is, ED (ion dialysis membrane) or MVR (reduced vapor recompression) The concentrated water is re-concentrated by the evaporation method to prepare a high-concentrated concentrated water and electrolyzed to prepare acidic and alkaline water (FIG. 1).
  • NF-RO membrane nano filter-reverse osmosis composite membrane
  • ED electrodialysis membrane
  • MVR reduced vapor recompression
  • Acid and alkaline water are prepared by electrolyzing concentrated water and concentrated water using a membrane-free decomposition device for producing electrolytic water.
  • the current amount is adjusted to adjust the pH of the alkaline water to produce mineral salts having different calcium and magnesium components for each pH (FIG. 2).
  • Figure 3 shows a sedimentation separation tank for separating the mineral salts produced in the hydrogen ion concentration adjusted alkaline water.
  • the mineral salt precipitate formed is collected at the bottom of the conical bottom of the sedimentation tank.
  • the sedimentation tank without disturbing the mineral salt deposited on the bottom by using the supernatant removal discharge device 15 cm above the conical bottom of the sedimentation tank.
  • the seawater or the deep seawater was separated from the concentrated water (Fig. 3).
  • Mineral precipitates separated in the sedimentation tank were centrifuged using a centrifuge, dried in a hot air dryer, and then powdered to prepare mineral salts.
  • mineral salts dried by pH magnesium: calcium ratio 0.01-0.4 at pH 10 or less, magnesium: calcium ratio 0.4-1.8 at pH 11, magnesium: calcium ratio 1.8-3.8 at pH 12, magnesium: calcium ratio at pH 13 and above
  • the separation of calcium and magnesium occurs between 3.8 and 40.72.
  • mineral salts having different concentrations of magnesium to calcium are prepared by mixing and adjusting mineral salts having different magnesium and calcium concentrations according to hydrogen ion concentration (pH).
  • a calcium salt having a purity of 90% or more, a mineral salt having a magnesium to calcium ratio in the range of 0.1 to 50, a magnesium salt having a magnesium concentration of 98% or more, and the like are prepared.
  • mineral salt with adjusted mineral content is dissolved in demineralized water to produce high hardness mineral water with hardness up to 1200 with calcium and magnesium composition adjusted.
  • Manufacture Since mineral salts have already been separated and removed from the ions of drinking water quality standards such as sodium ions, boron ions, chlorine ions, and sulfate ions when mineral salts are manufactured, the hard mineral mineral water prepared using these mineral salts is Manufacture hard mineral mineral water that meets drinking water quality standards.
  • mineral-enriched mineral mixed drinks can also be prepared.
  • NF nano sulfate
  • UF ultra filter
  • Filtration of the water through the reverse osmosis membrane comprises the steps of preparing a concentrated water in which only SO 4 2- is removed and the remaining salts (sodium, potassium, calcium, magnesium, etc.) are concentrated.
  • the conventional reverse osmosis membrane process is simple, the concentration of the concentrated water is low, and there are problems such as the inclusion of sulfate ion (SO 4 2- ) in the concentrated water, and the ion exchange membrane process (ED) uses the concentration of the reverse osmosis membrane. It can be higher than the process, but there were problems of purity such as mineral separation.
  • a process of manufacturing a high-efficiency mineral salt and high hardness mineral water is performed by combining a nano filter membrane (NF)-reverse osmosis membrane (RO)-electrodialysis membrane (ED) process.
  • NF nano filter membrane
  • RO reverse osmosis membrane
  • ED electrolysis membrane
  • Figure 4 shows a process chart combining the NF-RO-ED process and MVR-precipitation separation process for improving the mineral salt production yield. Obtained the production water from which sulfate ions were removed through the primary nanofilter membrane, and producing high-purity production water (demineralized water) and concentrated water from which 7% or more sulfate ions were removed through the second reverse osmosis membrane process, and thirdly, ED (ion exchange membrane). The process produces a concentrated water of at least 14% with (SO 4 2- ) removed. The concentrated water is evaporated and crystallized through MVR (Decomposition Evaporation Distillation Method), and the purified supernatant with high concentration of magnesium is separated and purified to prepare mineral concentrated water (hardness of 100,000 or more).
  • MVR Decomposition Evaporation Distillation Method
  • the quality of the water produced depends on how much sulfate ions (SO 4 2- ) are contained, the desalination and the balance of potassium, calcium and magnesium content.
  • SO 4 2- sulfate ions
  • highly concentrated water with significantly reduced sulfur content could be used for mineral extraction, and it can be seen that only a part of calcium crystallization remains as mineral concentrated water during crystallization.
  • Removal of sulfate ions has the advantage that there is no inconvenience to crystallize and re-dissolve calcium during the crystallization process.
  • Table 4 Composition and Comparison of Water Quality Standards of Hardened Mineral Water Using Mineral-Adjusted Salts division ingredient unit Mineral demineralized water according to the present invention (based on hardness 4,353) Mineral demineralized water prepared by the existing method (based on hardness 3,721) High hardness mineral water produced by the present invention (based on 1,000 hardness) Deep sea water quality standards to eat Elemental ingredient Sodium (Na) mg / L 14 600 3.0 - Magnesium (Mg) mg / L 790 801 182 - Calcium (Ca) mg / L 440 167 101 - Potassium (K) mg / L ND 160 ND - Hazardous Effects Nitrate mg / L ND ND ND 10 Boron (B) mg / L 0.04 0.029 0.0203 1.0 Arsenic (As) mg / L 0.003 0.0002 0.001 0.05 Lead (Pb) mg / L 0.002 0.0002 0.0003 0.05 Selenium (Se) mg /
  • the method for preparing the mineral salt and the mineral water of the present invention includes preparing a mineral salt by electrolyzing the secondary concentrated water and adjusting and crystallizing the mineral (calcium, magnesium, potassium) component using a precipitation separation system.
  • Existing evaporative concentration methods include direct evaporation (flat type) by generating direct thermal energy and indirect evaporation using steam, and indirect evaporation using steam (Mechanical Vapor Recompressor) method. There is a way to maximize energy efficiency.
  • energy of 10,750,000kcal of flat type, 5,750,000kcal of steam type, 1,380,000kcal of multistage vacuum type and 500,000kcal of MVR method is used.
  • MVR method is used for steam input-evaporative concentration-mechanical recompression (temperature rise)-evaporative concentration-mechanical recompression (temperature rise)-evaporative concentration.
  • the energy consumed in the electrolysis sedimentation process consumes about 1.0 kw, which translates into 1,700 kcal.
  • the electrolytic sedimentation method can be used to drastically reduce the energy required during the mineral salt manufacturing process.
  • the electrolyzed water generator consists of a control panel for electrolyzed water generation, electrolyzed water generating diaphragm electrolysis tank, seawater and concentrated water supply line, circulation pump, alkaline and acidic water generating tank, strong aliphatic and strong acidic water discharge line, and water level sensor of the tank. have.
  • Figure 5 shows a membrane-free electrolytic decomposition device and each structure of the electrolytic water generation.
  • the ammeter must be at least 260 mA before it can be produced. However, if the minimum water level is too low, the amount of waste water discarded after the operation setting time will be large, and much time is required to increase the ammeter value. On the contrary, if the minimum water level sensor is placed too high, the amount of water discarded is small, so the amount of supplemental water is small, and the amount of chlorine ions taken from the septum may be less and the pH value may be lowered.
  • the pH value can be adjusted according to the amount of current as follows.
  • the device If you set the operation time of the electrolyzer to 30 minutes and the time interval for entering the metering pump to 10 minutes, the device operates after 30 minutes of operation.
  • the metering pump is operated three times in 30 minutes and produces about 400 ml of alkaline water at one time.
  • the hydrogen ion concentration of the electrolyzed alkaline water of seawater or deep sea water concentrated water it is possible to produce mineral salts with different composition of calcium and magnesium content at each pH, which is then transferred to the settling tank to precipitate the generated salts. Separated with deep water concentrate.
  • the volume of the sedimentation tank is about 100 liters, and the upper part is cylindrical and the lower part is conical.
  • the mineral salt precipitates are collected at the bottom of the conical bottom of the sedimentation tank. Separate from the concentrated seawater or the deep seawater of the sedimentation tank without disturbing the mineral salts.
  • Mineral precipitates separated in the sedimentation tank were centrifuged using a centrifuge, dried in a hot air dryer, and then powdered to prepare mineral salts.
  • the mineral salt produced and separated and dried at pH 10 was 9.24% of magnesium and 23.1% of calcium. Most of the minerals formed as magnesium / calcium ratio 0.4 were calcium.
  • the mineral salt formed consisted of 21% magnesium and 12% calcium, with a magnesium / calcium ratio of 2.0.
  • Mineral salts formed at pH 12 consisted of 26.7% magnesium and 7.2% calcium, with a magnesium: calcium ratio of 3.7.
  • the mineral salt formed was 30.7% magnesium, 4.4% calcium, and the magnesium: calcium ratio was 7.0, resulting in the separation of calcium and magnesium, accounting for 82% of the total cationic minerals.
  • the concentration change of magnesium and calcium according to pH in the mineral salt formed by adjusting the hydrogen ion concentration is shown in FIG. 6.
  • Magnesium increased with increasing hydrogen ion concentration from 10 to 13, while calcium concentration decreased. Therefore, by adjusting the hydrogen ion concentration (pH) of the alkali water it was possible to adjust the ratio of magnesium and calcium in the mineral salt produced.
  • the mineral salts produced were analyzed for mineral mineral crystals using a Multi purpose X-ray Diffractometer (MP-XRD). The analysis conditions were X-ray power of 45 KV / 30mA, Scan Mode of ⁇ / 2 ⁇ , and Scan range of 10-100 deg (2 ⁇ ). Since most of the mineral crystals formed are in the form of calcium carbonate, magnesium hydroxide and calcium hydroxide, they are mostly separated from chlorine and sulfate ions, which are water quality standards for drinking water (FIG. 8).
  • the mineral salts having different magnesium and calcium concentrations were mixed and adjusted according to hydrogen ion concentration (pH) to prepare mineral salts in which the concentration ratio of magnesium to calcium was adjusted.
  • magnesium having a Mg / Ca ratio of 0.40 formed at a hydrogen ion concentration (pH) of 10 and a calcium calcium salt of 23% as a main component and magnesium having a Mg / Ca ratio of 6.9 at a hydrogen ion concentration (pH) of 13 are magnesium
  • By mixing 77% of the mineral salts it was possible to prepare a mineral salt having a magnesium content of 25.7%, a calcium content of 8.7%, and a Mg / Ca ratio of 3.0.
  • the mineral salts with the mineral content adjusted are mixed with citric acid powder, vitamin powder, fruit extract powder, green tea powder and the like (tablet) Or it could be manufactured in powder fabric.
  • 10.0 grams of mineral salts were dissolved in 1 liter of demineralized water (hardness 80). Up to 4,350 demineralized brine was prepared. This is again diluted with 2 liter demineralized water to produce 3 liters of hard mineral mineral water. Since the mineral salts have already been separated and removed from the ions of drinking water quality standards such as strontium, boron ions, chlorine ions, and sulfate ions when the mineral salts are manufactured, the hard mineral mineral water prepared by dissolving these mineral salts in demineralized water is eaten up to a hardness of 1,000 or more. It satisfies the water quality standards prescribed by the Water Management Act. Drinking water quality standards are shown in Table 4.

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  • General Chemical & Material Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
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  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
PCT/KR2012/011424 2012-05-30 2012-12-26 해수 전기분해 알칼리 수로부터 마그네슘염과 칼슘염을 포함한 미네랄 염의 분리 및 이를 이용한 미네랄음료의 제조방법 WO2013180368A1 (ko)

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JP2015503096A JP5919432B2 (ja) 2012-05-30 2012-12-26 海水の電気分解アルカリ水からマグネシウム塩とカルシウム塩を含むミネラル塩の分離およびこれを用いたミネラル飲料の製造方法

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