KR20060119025A - A manufacturing method and device for the production of mixed beverage with high hardness and mineral by using deep sea water or ground sea water - Google Patents

Abstract

A method for making mineral-containing beverage from deep sea water or ground sea water is provided to obtain mineral-containing beverage having various levels of hardness and containing no harmful substances such as heavy metals. The method for making high-hardness mineral-containing beverage comprises the steps of: (a) collecting and pretreating deep sea water or ground sea water, and treating the water with the first nanofiltration membrane to obtain nanofiltered water having a reduced amount of divalent ions; (b) treating the nanofiltered water of step (a) with a reverse osmosis membrane to obtain desalted water; (c) treating the nanofiltered water of step (a) with the second nanofiltration membrane to obtain high-hardness mineral-enriched water in which divalent ions are concentrated; and (d) mixing the desalted water of step (b) with the mineral-enriched water of step (c).

Description

A manufacturing method and device for the production of mixed beverage with high hardness and mineral by using deep sea water or ground sea water}

1 is a flowchart of a hardness and mineral component adjusting process,

Figure 2 is a schematic diagram of the separation and concentration of mineral components by nanofiltration,

3 is a schematic diagram of desalination and mineral separation by reverse osmosis;

Figure 4 is a high hardness mineral mixed beverage manufacturing process using nanofiltration and reverse osmosis device,

Figure 5 is a characteristic of the filtered concentrated water and produced water in each step of the production method according to the present invention.

<Description of the symbols for the main parts of the drawings>

(1) Raw water tank (2) Raw water supply control valve

(3) Nanofiltration (NF) supply pump (4) Pretreatment filter (3㎛)

(5) Pretreatment filter (1㎛) (6) High pressure pump for nanofiltration filter

(7) Nanofiltration membrane feed water conductivity meter (8) Nanofiltration membrane feed water flow meter

(9) Nanofiltration Module 1 (10) Nanofiltration Module 2

(11) Nanofiltration membrane module 3 (12) Concentrated water pipe of nanofiltration membrane module 1

(13) Concentrated water pipe of nanofiltration membrane module 2 (14) Supply water pipe

(15) Nanofiltration membrane supply pipe of nanofiltration membrane primary production water

(16) Nanofiltration membrane primary production water nanofiltration membrane supply control valve

(17) water pipe

(18) nanofiltration membrane concentrated water bypass tube

(19) Nanofiltration Concentrated Water Storage Valve

(20) Nanofiltration Membrane Concentrate Tank

(21) Nanofiltration membrane concentrate tube

(22) Nanofiltration membrane production water conductivity

(23) Nanofiltration membrane production water flow meter

(24) Nanofiltration membrane final production pipe

(25) Nanofiltration membrane production water flow control valve

(26) Nano filtration membrane production water tank

(27) Reverse Osmosis Supply Pump

(28) Reverse Osmosis Pretreatment Filter (3㎛)

(29) Reverse Osmosis Pretreatment Filter (1㎛)

(30) High pressure pump for reverse osmosis

(31) Reverse Osmosis Supply Water Flow Meter

(32) Reverse Osmosis Supply Water Conductivity Meter

(33) Reverse Osmosis Membrane Module 1

(34) Reverse Osmosis Membrane Module 2

(35) Reverse Osmosis Membrane Module 3

(36) Concentrated water pipe of reverse osmosis membrane module 1

(37) Concentrated water pipe of reverse osmosis membrane module 2

(38) Reverse Osmosis Final Concentrated Water Flow Meter

(39) reverse osmosis concentrate by-pass tube

(40) Reverse Osmosis Concentrated Tanks

(41) Reverse Osmosis Concentrated Water Pipe

(42) Reverse Osmosis Concentrated Water Storage Control Valve

(43) Reverse Osmosis Produced Water Conductivity Meter

(44) Reverse Osmosis Produced Water Flow Meter

(45) Reverse Osmosis Production Pipe

(46) Reverse Osmosis Production Water Storage Control Valve

(47) reverse osmosis production water by-pass tube

(48) Reverse Osmosis Production Water Tank

(49) Nanofiltration membrane concentrated water and reverse osmosis production water mixing pipe

(50) Reverse Osmosis Production Water Mixing Valve

(51) Nanofiltration Filter Concentrated Mixing Valve

(52) Final Mixed Production Tank

The present invention relates to a method for producing a high hardness and mineral mixed beverage from deep seawater and subterranean rock water and a manufacturing apparatus for producing the same.

The tap water currently in use is purified by contaminating rivers or lakes by various means. To restore this polluted source back to its original state requires enormous energy and time, but fortunately, many countries, including Korea, are in contact with the ocean, which occupies about 71% of the earth's area. have.

In general, reverse osmosis, evaporation, and the like have been widely used as a seawater desalination technique. In particular, the reverse osmosis method is widely used in the seawater desalination method, there is a problem that the mineral component is not present sufficiently in the case of reverse osmosis produced water.

The seawater that can produce the high hardness and mineral mixed beverage associated with the present invention can be classified into general seawater (surface water), deep seawater and underground rock seawater. Deep sea water is defined as 'clean sea water with a stable temperature below 2 ° C throughout the year because it exists in a deep sea of more than 200m deep that sunlight does not reach.' In addition, the underground rocky seawater can be defined as' seawater that has penetrated hundreds of meters of coastal area and is discharged through the ground at the time of pumping.

On the other hand, deep seawater and subterranean seawater contain various kinds of minerals, especially hardness of calcium and magnesium is higher than that of surface water, and it is recently recognized as a sustainable alternative water resource of natural circulation type. Deep seawater is expected to be applied to various industrial fields, and the expectation is very high as a source of drinking water that can supply natural ingredients useful for minerals such as calcium and magnesium, which are particularly useful hardness and minerals.

However, in the case of deep seawater and underground rock seawater, salt has a significant proportion, which makes it difficult to separate salts, and it is commercialized as a drink because it removes calcium, magnesium, etc., which are useful hardness and minerals in the process of separating salts. It is not done.

Therefore, there is an urgent need for the development of new technologies capable of producing mixed beverages containing high concentrations of hardness and minerals, while being suitable for satisfying the drinking water quality standards while containing various useful minerals from deep seawater and underground rock and seawater.

The beverage preparation method by hardness and mineral adjustment consists of the technique of nanofiltration and reverse osmosis. In Japanese Laid-Open Patent Publication No. 2002-29237, it is known to prepare freshwater, concentrated deep water, concentrated minerals, and concentrated small nets by using deep water, ion exchange membranes, and reverse osmosis membranes for marine deep water. (Hardness 500mg / L or less, TDS 500mg / L or less) There is a limit to the production of beverages, there is also a disadvantage that the manufacturing apparatus is complicated and expensive operating costs.

In Japan, although deep and mineral adjustment technology using deep sea water is possessed, mixed drinks are produced by simply mixing the concentrated and produced water by reverse osmosis, and related products are imported and distributed in Korea. Most of the products can not meet the drinking water quality standards, so import distribution is difficult. The production of high-concentration hardness-mineral mixed beverages requires the development of a process that can satisfy the current drinking water quality standards.

At the front end of the reverse osmosis process, seawater is treated through the nanofiltration process and salt water is passed through, and the harmful substances such as heavy metals are concentrated and the demineralized water mixed with reverse osmosis can be produced to produce high-hardness mineral mixed drinks. Developed technology.

An object of the present invention is to produce a nano-filtration production water reduced divalent ionic components by filtering the high-hardness mineral components from the seawater such as deep seawater or underground rock seawater to the nanofiltration membrane, the nanofiltration production water by reverse osmosis membrane 1 Reverse osmosis production and mineral concentrates prepared by producing reverse osmosis production water with reduced ions, and nanofiltration production water were filtered with a secondary nanofiltration filter to produce high hardness mineral concentrates with concentrated divalent ions. It is to provide a method for producing a variety of high-hardness, mineral mixed drinks by mixing the mixture, and also to prepare the high-hardness, mineral mixed drinks from the compact and economical deep sea water or underground hard rock seawater mixed It is to provide a device for producing a beverage.

In order to achieve the above object, the manufacturing method of the high-hardness / mineral mixed beverage according to the present invention comprises a) pretreatment by taking deep ocean water or underground rock seawater, and filtering by primary nanofiltration membrane to reduce divalent ion component. Preparing the production water; b) preparing the reverse osmosis production water in which monovalent ions are reduced by the reverse osmosis membrane of the nanofiltration production water filtered in step a); c) filtering the nanofiltration production water filtered in step a) with a secondary nanofiltration membrane to prepare a high hardness mineral concentrated water in which divalent ions are concentrated; d) mixing the reverse osmosis production water prepared in step b) and the mineral concentrate water prepared in step c); It is characterized by.

In addition, the apparatus for producing a high hardness and mineral mixed beverage according to the present invention is a raw water tank for taking and storing deep sea water or underground rock seawater; A pretreatment filter connected to the raw water tank; A nanofiltration membrane module connected to the pretreatment filter; A nanofiltration production water storage tank for storing nanofiltration production water having reduced divalent ionic components produced by the nanofiltration membrane module; A reverse osmosis membrane module connected to the nanofiltration production water storage tank; Reverse osmosis production water storage tank is reduced monovalent ions produced by the reverse osmosis membrane; A nanofiltration production water circulation pipe connected to the conduit between the nanofiltration production water storage tank and the pretreatment filter and the nanofiltration membrane module; High hardness mineral concentrated water storage tank for preparing and storing the high hardness mineral concentrated water in which divalent ions are concentrated by the nanofiltration membrane module from the nanofiltration production water storage tank through the nanofiltration production water circulation pipe ; A high hardness and mineral mixed beverage storage tank for connecting the reverse osmosis production water storage tank and the mineral concentrated water storage tank to mix and store the reverse osmosis production water and the mineral concentrated water; Characterized in that consists of.

Hereinafter, the present invention will be described with reference to the drawings.

Figure 1 is a high hardness mineral component adjustment process flow chart of the manufacturing method according to the present invention, Figure 2 is a schematic diagram of the separation and concentration of the mineral component by the nanofiltration method, Figure 3 is a desalination and mineral separation schematic diagram by the reverse osmosis method, Figure 4 Process diagram of manufacturing a high hardness mineral mixed beverage using nanofiltration and reverse osmosis device, Figure 5 is the analysis of the characteristics of the filtered and concentrated water at each step of the production method according to the present invention.

The method for producing a high hardness and mineral mixed beverage according to the present invention goes through the following steps.

Pretreatment of raw seawater is performed by using a pretreatment filter in order to remove deep seawater or underground rocky seawater. The pretreatment may be performed in two stages. In the present invention, a 3 μm pretreatment filter and a 1 μm pretreatment filter were used, and the pretreated feedwater was transferred to the primary nanofiltration membrane by a nanofiltration high pressure pump to filter the primary nanofiltration membrane. The nanofiltration production water is reduced by the divalent ionic component is produced.

Nanofiltration by the nanofiltration membrane applied in the present invention is a kind of reverse osmosis membrane which is operated at a lower pressure than the conventional reverse osmosis membrane. By applying the principle of removing monovalent ions and divalent ions, divalent ions such as Ca, Mg, etc. are concentrated while passing through monovalent ions such as Na, K and Cl.

FIG. 2 is a schematic representation of the concentration ratios of nanofiltration concentrated water and nanofiltration production water in which divalent ions are concentrated in the seawater passing through the nanofiltration membrane, and divalent cationic components such as calcium and magnesium present in the seawater are nanofiltration. It is present at low concentrations in the production water, but is present in many nanofiltration concentrates. On the other hand, the monovalent components such as sodium and potassium in the nanofiltration production water are almost similar to the raw seawater components and are high in the nanofiltration concentrated water. In the present invention where seawater is raw water, the nanofiltration membrane used in the production method according to the present invention employs a reverse osmosis membrane, since an appropriate amount of divalent ions must be included in the nanofiltration production water produced through the nanofiltration membrane. Reverse osmosis membranes that are commonly used are those used in the range of 50 to 60kgf / cm ² , whereas reverse osmosis membranes used as nanofiltration membranes in the present invention are operated at operating pressures ranging from 10 to 5kgf / cm ² based on seawater. Preferably, the production water recovery is more preferably 40 to 60%.

If the production water recovery rate is 10 to 20%, the amount of divalent ion separation is poor, so that the production water is not suitable for use as a hard mineral drink.

The nanofiltration production water produced from the nanofiltration membrane is subjected to a desalination process by a reverse osmosis membrane. Reverse osmosis is a method of separating various salts and organic substances at a pressure greater than osmotic pressure through a semipermeable membrane, and is generally applied to seawater desalination. The operating pressure of the reverse osmosis membrane according to the invention is preferably operated at 40 to 100kgf / cm ² , at this time, since most of the ions are separated by the reverse osmosis membrane produced reverse osmosis water produced by the reverse osmosis in Figure 3 As shown in the schematic diagram showing the concentration ratio of the ionic components in the concentrated water and the produced water, the concentration of the ionic components becomes extremely low, and the monovalent ions are reduced by reverse osmosis separation, resulting in almost no salt and almost other mineral components. Reverse osmosis production water, which is not water, is produced.

In addition, a portion of the nanofiltration production water produced by the primary nanofiltration membrane is filtered through a secondary nanofiltration membrane to prepare a high hardness mineral concentrated water in which divalent ions are concentrated.

The high hardness mineral concentrated water is preferably subjected to two or more nanofiltration steps to sufficiently concentrate the divalent ions. In addition, a plurality of nanofiltration membrane modules are provided so that the nanofiltration production water outlet of each nanofiltration membrane module is connected in parallel so that the nanofiltration production water is produced from each nanofiltration membrane module, and mineral concentrate water of each nanofiltration membrane module. The outlets are connected in series to allow mineral concentrate water to pass through each nanofiltration membrane module and to be discharged from the final nanofiltration membrane module for economic utilization of seawater.

Since the primary nanofiltration membrane for preparing nanofiltration water and the secondary nanofiltration membrane for preparing mineral concentrated water can be used as the same specifications, the primary nanofiltration is again performed after preparing the production water using primary nanofiltration. It is also possible to switch to the role of filtration and use it batchwise.

The nanofiltration secondary concentrated water and reverse osmosis produced water produced by nanofiltration and reverse osmosis are equipped with a mixing control valve to adjust the mixing ratio appropriately to produce the final high hardness and mineral beverage suitable for consumer's preference and drinking purpose. do.

The manufacturing apparatus suitable for the high hardness mineral mixed beverage manufacturing method according to the present invention is raw water for taking and storing deep ocean water or rock underground seawater as shown in the manufacturing process diagram of the high hardness mineral mixed beverage using the nanofiltration and reverse osmosis apparatus of FIG. Tank; A pretreatment filter connected to the raw water tank; A nanofiltration membrane module connected to the pretreatment filter; A nanofiltration production water storage tank for storing nanofiltration production water having reduced divalent ionic components produced by the nanofiltration membrane module; A reverse osmosis membrane module connected to the nanofiltration production water storage tank; Desalted reverse osmosis production water storage tank produced by the reverse osmosis membrane module; A nanofiltration production water circulation pipe connected to the conduit between the nanofiltration production water storage tank, the nanofiltration device pretreatment filter, and the nanofiltration membrane module; High hardness mineral concentrated water storage tank for preparing and storing the high hardness mineral concentrated water in which divalent ions are concentrated by the nanofiltration membrane module from the nanofiltration production water storage tank through the nanofiltration production water circulation pipe ; The reverse osmosis production water storage tank and the mineral concentrated water storage tank is connected to the high hardness, mineral mixed beverage storage tank for mixing and storing the reverse osmosis production water and mineral concentrated water.

As mentioned above, in the manufacturing apparatus according to the present invention, the first nanofiltration membrane for preparing nanofiltration water and the second nanofiltration membrane for preparing mineral concentrated water can be used as the same specifications. Afterwards, the primary nanofiltration is converted into a role of secondary nanofiltration and used in a batch manner. As described above, between the nanofiltration production water storage tank, the pretreatment filter, and the nanofiltration membrane module. The nanofiltration production water circulation pipe is connected to the conduit to select the filtration process by operating the appropriate valve during operation.

In addition, the nanofiltration membrane module is provided with a plurality, and the nanofiltration production water conduit flowing into the nanofiltration production water storage tank by connecting the nanofiltration production water outlets of each nanofiltration membrane module in parallel and the mineral concentrate outlet of each nanofiltration membrane module. In series, and the configuration of the module includes a conduit introduced into the mineral concentrate storage tank, and the high hardness mineral concentrate so that the concentrated nanofiltration concentrate is discharged from the nanofiltration membrane module disposed at the final position of the nanofiltration membrane. And a bypass tube for discharging the final nanofiltration concentrated water between the water storage tank and the nanofiltration membrane module disposed at the final location. The above configuration not only makes the raw water economically utilized, but also has the advantage of effectively producing the mineral hardened water of high hardness and making the configuration of the device compact.

In addition, the reverse osmosis membrane module is also provided with a plurality, the reverse osmosis production water conduit to the reverse osmosis production water storage tank by connecting the reverse osmosis production water outlet of each reverse osmosis membrane module and the reverse osmosis membrane water outlet of each reverse osmosis membrane module A conduit flows into the reverse osmosis membrane storage tank connected in series, and the reverse osmosis membrane storage tank is located at the rear end of the reverse osmosis membrane module disposed at the final position so that the reverse osmosis membrane water discharged from the reverse osmosis membrane module disposed at the final position is discharged. It is preferred to be provided.

Hereinafter, the manufacturing steps of the high hardness and mineral mixed beverage according to the present invention will be described in detail.

As shown in FIG. 4, raw water of deep seawater or subterranean rock water is collected in the raw water tank 1 and supplied to the pretreatment filter 3 μm 4 and the pretreatment filter 1 μm 5 by the nanofiltration pump 3. The pretreated feed water is supplied to the nanofiltration membrane module through the nanofiltration feed water line 14 by the nanofiltration high pressure pump 6. The flow rate of the feed water and the TDS are measured by the flow meter 8 and the TDS meter 7 of the feed water of the feed water pipe 14. The nanofiltration membrane module consists of three parts, and the nanofiltration product of the nanofiltration membrane module 1 (9) is supplied to the nanofiltration membrane module 2 (10) through the concentrated water pipe 12 of the nanofiltration membrane module 1, and the nanofiltration membrane module 2 (10) ), And the filtered water is supplied to the nanofiltration membrane module 3 (11) through the concentrated water pipe (13) of the nanofiltration membrane module 2, and the filtered water is filtered through the nanofiltration final water pipe (24). 26) is moved to and saved. The production flow rate and electrical conductivity of the nanofiltration production water are measured by the flowmeter 23 and the TDS meter 22 of the nanofiltration final production water. On the other hand, the nanofiltration primary concentrated water may be concentrated in the coexistent metal material in the raw water, so close the nanofiltration concentrate storage valve 19 of the nanofiltration final concentration pipe 21 and the nanofiltration concentrated water bypass pipe (18). I send it off). After the nanofiltration production water tank 26 is filled with the nanofiltration production water, the reverse osmosis feed valve 17 is closed, and then the nanofiltration primary production water nanofiltration supply control valve 16 is opened. The primary nanofiltration water is supplied through the nanofiltration supply pipe 15. At this time, the raw water supply control valve (2) is closed in order to prevent the element of the raw water tank is introduced. The nanofiltration primary production water is supplied to the nanofiltration membrane module through the nanofiltration supply water pipe 14 by the nanofiltration high pressure pump 6 by the nanofiltration supply pump 3. The feed flow rate and TDS of the nanofiltration primary production water are measured by the nanofiltration feed flow meter 8 and the TDS meter 7 of the feed water pipe 14. After passing through the nanofiltration membrane module, the nanofiltration secondary production water is transferred to and stored in the nanofiltration production tank 26 through the nanofiltration final production pipe 24. The production flow rate and TDS of the nanofiltration secondary final product water are measured by the nanofiltration final product water flow meter 23 and the TDS meter 22. Here, the nanofiltration secondary concentrated water is stored in the nanofiltration concentrated water tank 20 by opening the nanofiltration concentrated water storage valve 19 of the nanofiltration final concentrated water pipe 21. After securing a certain amount of nanofiltration secondary concentrated water, the speed of the nanofiltration high pressure pump 6 is gradually reduced, and then the nanofiltration supply pump 3 is turned off.

The method for preparing nanofiltration water obtained after the nanofiltration secondary concentration separation process using demineralized water is as follows. The nanofiltration primary production water nanofiltration supply control valve 16 is closed, and then the reverse osmosis supply valve 17 is opened. The reverse osmosis feed pump (27) is supplied to the pretreatment filter (29) of the reverse osmosis feed water and the pretreatment filter (1) (29) (Hytrex Cateridge Filter), and the reverse osmosis membrane module is supplied by the reverse osmosis membrane module by the high pressure pump (30). Feed filtration water. The feed flow rate and TDS of the nanofiltration production water are measured by the feed water flow meter 31 and the TDS system 32. The reverse osmosis membrane module is composed of a total of three, and the concentrated water of the reverse osmosis membrane module 1 (33) is supplied to the reverse osmosis membrane module 2 (34) through the concentrated water pipe 36 of the reverse osmosis membrane module 1, and the concentrated water of the reverse osmosis membrane module 2 (34) is reverse osmosis membrane. The produced water filtered and supplied to the reverse osmosis membrane module 3 (35) through the concentrated water pipe 37 of the module 2 is moved to and stored in the reverse osmosis production water tank 48 through the reverse osmosis final production water pipe 45. The production flow rate and TDS of the reverse osmosis membrane final product water are measured by the reverse osmosis membrane final product water flow meter 44 and the TDS system 43. On the other hand, the reverse osmosis membrane final concentrated water closes the reverse osmosis concentrated water storage valve 42 of the reverse osmosis final concentrated water pipe 41 and flows into the reverse osmosis concentrated water bypass pipe 39.

The nanofiltration secondary concentrated water and reverse osmosis produced water produced by nanofiltration and reverse osmosis are reverse osmosis produced water mixing control valves (50) and nanofiltration concentrated water in a nanofiltration concentrated water reverse osmosis produced water mixing tube (49). By adjusting the mixing ratio using the mixing control valve 51, the final high hardness and mineral beverage is produced.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the scope of the present invention is not limited by the following examples.

Example 1

Example of Mineral Drink Production Using Underground Rockwater

In the embodiment of the present invention, the pretreatment filter used a Hytrex Cateridge Filter manufactured by Hytrex, the nanofiltration membrane was a reverse osmosis membrane, and SU-610 (55% of nominal desalination rate) manufactured by TORAY, was used. SU-810 (nominal desalination rate of 99.78%) was used.

The TDS and hardness of mineral water manufacturing process of hardness 233, TDS 500 using raw water of rock underground water by 10 ㎥ of nanofiltration and reverse osmosis pilot plant, and the production and concentrated water in each unit process It is shown in 5, Table 1 shows the operating pressure, permeation amount and recovery rate by filtration membrane for each unit process.

Underground rock and seawater is an underground seawater in 800m of rock mass and contains 3.5 times more calcium and 1.3 times more hardness than seawater. Table 2 shows the preparation of mineral beverages with hardness 233mg / L and TDS 500mg / L and the drinking water quality standards according to the characteristics, hardness and mineral adjustment technology of underground rock and seawater. It is possible to manufacture mineral beverages that satisfy the drinking water quality standards and have maximum hardness within the drinking water quality standard and to remove products of toxic metals such as arsenic.

[Table 1] Operating pressure, permeation rate and recovery rate by filtration membrane by unit process

[Table 2] Preparation example of mineral drink and drinking water quality standards

As can be seen from the above results, by separating and concentrating the natural hardness and mineral components present in the sea water is a very suitable technology for the production of mineral drinks. Particularly, in the mineral beverage production using deep seawater or subterranean rock water, it is effective to apply the mineral separation and concentration technology by the nanofiltration-reverse osmosis combination according to the present invention, and it is possible to manufacture a beverage containing a large amount of mineral components. It is effective to provide drinks and foods useful to modern people with severe mineral deficiency.

Claims (10)

a) taking a deep seawater or subterranean seawater and pretreating and filtering with a primary nanofiltration membrane to produce nanofiltration production water having reduced divalent ionic components; b) preparing the reverse osmosis production water desalted by the reverse osmosis membrane of the nanofiltration production water filtered in step a); c) filtering the nanofiltration production water filtered in step a) with a secondary nanofiltration membrane to prepare a high hardness mineral concentrated water in which divalent ions are concentrated; d) mixing the reverse osmosis production water prepared in step b) and the mineral concentrate water prepared in step c); Method for producing a high hardness, mixed mineral drink characterized in that. The method of claim 1, c) a method of producing a high hardness and mineral mixed beverage, characterized in that to prepare a high hardness mineral concentrated water in which divalent ions are concentrated through two or more nanofiltration steps. The method of claim 2, A method for producing a high hardness / mineral mixed beverage, wherein the primary nanofiltration membrane for producing nanofiltration water is used as a secondary nanofiltration membrane for producing mineral concentrated water. The method of claim 3, wherein Nanofiltration membrane is a method of producing a high hardness, mineral mixed drink, characterized in that the reverse osmosis membrane is operated at an operating pressure of 10 to 5kgf / cm ² and the production water recovery is 40 to 60%. Raw water tank which takes and stores deep ocean water or rock underground water; A pretreatment filter connected to the raw water tank; A nanofiltration membrane module connected to the pretreatment filter; A nanofiltration production water storage tank for storing nanofiltration production water having reduced divalent ionic components produced by the nanofiltration membrane module; A reverse osmosis membrane module connected to the nanofiltration production water storage tank; Reverse osmosis production water storage tank is reduced monovalent ions produced by the reverse osmosis membrane module; A nanofiltration production water circulation pipe connected to the conduit between the nanofiltration production water storage tank and the pretreatment membrane and the nanofiltration membrane module; High hardness mineral concentrated water storage tank for preparing and storing the high hardness mineral concentrated water in which divalent ions are concentrated by the nanofiltration membrane module from the nanofiltration production water storage tank through the nanofiltration production water circulation pipe ; A high hardness and mineral mixed beverage storage tank for connecting the reverse osmosis production water storage tank and the mineral concentrated water storage tank to mix and store the reverse osmosis production water and the mineral concentrated water; High hardness, mineral mixed beverage production apparatus characterized in that consisting of. The method of claim 5, Nanofiltration membrane is a high hardness, mineral mixed beverage production apparatus characterized in that the operating osmotic pressure of 10 to 5kgf / cm ^{2 and} the reverse osmosis membrane of the production water recovery rate 40 to 60%. The method of claim 6, A plurality of nanofiltration membrane modules are provided, and the nanofiltration membrane production water outlets of each nanofiltration membrane module are connected in parallel to connect the nanofiltration membrane production water conduit flowing into the nanofiltration membrane production water storage tank and the mineral concentrate outlet of each nanofiltration membrane module. High hardness, mineral mixed beverage production apparatus characterized in that it comprises a conduit flowing in the mineral concentrated water storage tank connected in series. The method of claim 7, wherein Bypass tube for discharging the final nanofiltration concentrated water between the high hardness mineral concentrate storage tank and the nanofiltration membrane disposed in the final position to discharge the concentrated nanofiltration concentrated water from the nanofiltration membrane module disposed at the final position of the nanofiltration membrane High hardness, mixed mineral beverage production apparatus characterized in that it comprises a. The method of claim 6, The reverse osmosis membrane module is provided in plural, and the reverse osmosis production water conduit introduced into the reverse osmosis production water storage tank by connecting the reverse osmosis production water outlet of each reverse osmosis membrane module and the reverse osmosis concentrated water outlet of each reverse osmosis membrane module in series. High hardness, mineral mixed beverage production apparatus characterized in that it comprises a conduit introduced into the reverse osmosis concentrated water storage tank by connecting to. The method of claim 7, wherein A high hardness, mineral mixed beverage production apparatus, characterized in that the reverse osmosis concentrated water storage tank is provided at the rear end of the reverse osmosis membrane module disposed in the final position to discharge the reverse osmosis concentrated water discharged from the reverse osmosis membrane module disposed in the final position.

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