KR100429381B1 - Drinking water manufacture device and method that use seawater - Google Patents

Abstract

PURPOSE: Provided are a device for preparing drinking water by using sea water and a method therefor which remove various soluble inorganic matters and soluble organic matters contained in sea water and also sterilize bacteria by treating the sea water with ozone and magnetizing it without using an additional coagulant. CONSTITUTION: The device comprises a sea water storage tank(1) storing the sea water collected from near the sea bottom, an ozone generator(2) generating ozone, a whirlpool turbine pump(3) transferring the sea water in the sea water storage tank with mixing it with ozone to dissolve, an ejector(4) spraying the transferred sea water with high pressure, a reaction melter(5) having an inner magnetic treater(20) and magnetizing the ozone-treated sea water by the whirlpool turbine pump and ejector, a multi-layer filter(6), an activated carbon filter(7) and a precise filter(10) removing contaminants contained in the magnetized sea water and a reverse osmotic membrane filter(12) removing salt from the filtered sea water by the precise filter to obtain fresh water, wherein the cylindrical reaction melter has an outer wall, an inner wall and a center wall positioned between the outer wall and the inner wall and having a plurality of guiding plate for water to be treated.

Description

Drinking water manufacture device and method using seawater {Drinking water manufacture device and method that use seawater}

The present invention relates to an apparatus and a method for producing drinking water using seawater, and more particularly, to an apparatus and method for producing drinking water using seawater, which is subjected to reverse osmosis treatment after ozone and magnetization, and the inside of the reaction dissolvers. By increasing the dissolution rate of ozone by installing an intermediate wall with a predetermined interval of triangular holes in the multi-direction, no secondary ozone treatment is required, thereby reducing the manufacturing process and reducing the manufacturing equipment. The present invention relates to a drinking water production apparatus and a manufacturing method using seawater.

In recent years, people's living standards are improving due to the rapid industrialization.However, water shortages occur frequently due to drought phenomenon due to climate change due to pollution of the natural environment. This phenomenon is a global trend. It will be even worse. In order to solve the above water shortage problem, there are dam construction and groundwater development.However, in case of dam construction, dam construction is not easy because not only damaging the natural environment but also enormous costs are needed for dam construction. In addition, because of the indiscriminate development of Edo, not only underground water resources are depleted but also because of the serious pollution of the groundwater, it is not easy to secure water resources, which is not a fundamental solution in the long term.

In order to solve the above problems, developed countries such as the United States, Japan, and Germany have been developing methods for obtaining fresh water from seawater, which is abundant water resources, for a long time, and using them as drinking water or industrial water. As such, the methods for obtaining fresh water from seawater are the evaporation method of heating the seawater to obtain fresh water using condensation properties, and the reverse osmosis method of separating freshwater and brine from seawater using a high pressure pump to obtain fresh water, and mechanically to seawater. Steam is produced by applying force and condensed to obtain fresh water.Crystal crystallization method to obtain fresh water using the principle that pure water crystals are first formed when seawater is frozen using low freezing point of seawater. There are various methods such as decomposition, but evaporation and reverse osmosis are the most commonly used.

Seawater contains about 2.7% by weight of sodium chloride as the main component, about 3,800ppm of magnesium chloride, about 1,700ppm of magnesium sulfate, about 1,300ppm of calcium sulfate, and about 900ppm of potassium sulfate.

As described above, many patents have been applied for desalination by removing various substances contained in seawater. Among them, Korean Patent Publication No. 82-707 (August 30, 1982) discloses a low power. It is about desalination of seawater by water purification method by small reverse osmosis which can be operated or because it is a small desalination treatment device, which is not suitable for mass production of fresh water and also does not pretreat seawater without pretreatment before reverse osmosis treatment. There is a problem that can take a lot of load during the osmotic treatment, Republic of Korea Patent Publication No. 10-227327 (99. 11.1 announcement) dissolve ozone in seawater in a magnetic treatment and then filtered to treat waste water, groundwater, rivers, seawater And apparatus for purifying the back, etc. Since the dissolution of ozone in seawater it must be carried across the efficiency is low, ozone and magnetic treatment and the filtering process in the second, so there is a problem that must be built into this redundancy fresh water production equipment, as well as according to the production process complicated.

In addition, many patents regarding ozone and magnetic treatment are also applied to general surface water or groundwater instead of seawater. Among them, Korean Patent Application Publication No. 97-1244 discloses the use of magnets and ozone for water. The invention relates to a purification method and a system for dissolving ozone in water by simple mechanical mixing, and Japanese Patent Application Laid-Open No. 7-185573 also discloses a water treatment in which a magnetization treatment device is provided at the front or rear of the ozone treatment device. As the invention and the main purpose of ozone treatment are inventions to increase the efficiency of sterilization, the above methods have almost the problem that the dissolution rate of ozone is low by dissolving ozone in water only by mechanical mixing.

Therefore, the present invention has been made to solve the above problems, the present invention is ozone and magnetization in drinking water production apparatus and method using the seawater to the reverse osmosis treatment after ozone and magnetization treatment, The purpose of the present invention is to provide an apparatus and method for producing drinking water using seawater, which is capable of sterilizing bacteria by removing various soluble inorganic substances and soluble organic substances contained in seawater without treating a separate flocculant. There is this.

Another object of the present invention is to provide an intermediate wall in which the triangular holes are formed at regular intervals in multiple directions in the reaction dissolver, thereby sufficiently increasing the dissolution rate of ozone mixed in seawater, such as various soluble inorganic substances and soluble organic substances contained in the seawater. As the oxidation rate of the contaminants can be increased to remove the contaminants from the filtration device, a separate secondary ozone treatment is not necessary, thereby shortening the manufacturing process and reducing the manufacturing facilities. It is to provide a drinking water production apparatus and a manufacturing method.

1 is an overall flow chart of the apparatus for producing drinking water using seawater according to the present invention;

Figure 2 is a cross-sectional view of the reaction dissolver in the drinking water production apparatus according to the present invention.

3 is a plan view of FIG.

Figure 4 is a cross-sectional view of the magnetic processor installed inside the reaction dissolver in the drinking water production apparatus according to the present invention.

Figure 5a is a plan view of the intermediate wall installed inside the reaction dissolver in the drinking water production apparatus according to the present invention.

5B is a cross-sectional view of FIG. 5A.

5C is a side view of FIG. 5A.

Explanation of symbols on the main parts of the drawings

1: seawater storage tank 2: ozone generator

3: vortex turbine pump 4: ejector

5: reaction solvent 6: multilayer filter

7: activated carbon filter 8: treated water storage tank

9: pump 10: precision filtration filter

11: high pressure pump 12: reverse osmosis membrane filter

20: magnetic processor 3l: inlet

32: outlet 41: outer wall

42: inner wall 43: middle wall

50: triangle hole 51: the target water guide plate

60: stainless steel pipe 70: inlet hole

80: diffuser 90: permanent magnet

100: center space

Apparatus and method for producing drinking water using seawater according to the present invention for achieving the above object will be described below in detail with reference to the accompanying drawings.

1 is an overall flow chart of the apparatus and method for producing drinking water using seawater according to the present invention.

In the drinking water production apparatus using the seawater which is subjected to the reverse osmosis treatment after ozone and magnetization treatment,

A seawater storage tank 1 for receiving seawater taken from offshore seabeds;

An ozone generator (2) for generating ozone;

A vortex turbine pump (3) for conveying ozone generated by the ozone generator (2) while mixing and dissolving the seawater in the seawater storage tank (1);

An ejector (4) for spraying the seawater conveyed from the vortex turbine pump (3) at a high pressure;

A reaction dissolver (5) having a magnetic processor (20) therein and applying a magnetic force to the ozone treated seawater through the vortex turbine pump (3) and the ejector (4) for magnetization treatment;

A multi-layer filter (6), activated carbon filter (7) and micro filter (10) for removing contaminants contained in the magnetized seawater through the reaction dissolver (5);

It includes a reverse osmosis membrane filter 12 to obtain a fresh water by removing the salt component of the seawater filtered through the precision filter (10);

The reaction dissolver (5) is formed in a cylindrical shape of the top and the bottom is blocked, the inlet 31 is coupled to the end of the circumferential direction of the ozonated sea water supplied from the ejector 4, the outlet (top) 32 is coupled to the outer wall 41,

The inner wall 42 is disposed spaced apart from the outer wall 41, the lower end is in close contact with the lower portion of the outer wall 41, the upper end is spaced apart from the upper portion of the outer wall 41,

An intermediate wall 43 is rotatably positioned between the outer wall 41 and the inner wall 42 and includes a plurality of treated water guide plates 51 protruding in the direction of the outer wall 41. The ozonated seawater supplied from 4) is moved to the vortex by the intermediate wall 43 rotated by the flow, so that the ozone-treated seawater is moved to the magnetic processor 20. It is about.

Drinking water production method using the seawater of the present invention for achieving the above object uses a drinking water production apparatus using the seawater according to the present invention and its preferred embodiment.

An ozone mixing step of supplying the ozone generated by the ozone generator 2 to the sea water and mixing the vortex turbine pump 3 with the ejector 4;

A magnetization step of applying the magnetic force to the ozone-dissolved seawater by transferring the ozone-mixed seawater to a reaction dissolver (5) provided therein;

A filtration step of filtration through a multilayer filter (6), an activated carbon filter (7), and a microfilter (10) to remove contaminants contained in the magnetized sea water;

The final treatment of the filtered seawater with a reverse osmosis membrane filter 12 to prepare drinking water. It relates to a method for producing drinking water using seawater, comprising: a.

Looking at the apparatus and method for producing drinking water using the sea water in detail as follows.

First, the seawater is taken from the seabed offshore and introduced into the upper portion of the seawater storage tank (1). And as a separate device, the ozone generated in the ozone generator (2) for generating ozone by silent discharge of oxygen of more than 90% of the purity passed through the PSA oxygen generator by suctioning air is transferred from the seawater storage tank (1) It is supplied to the sea water and conveyed to the ejector 4 while mixing and dissolving using the vortex turbine pump 3. At this time, the seawater and ozone are fixedly installed at right angles to the axis in the vortex turbine pump 3, and the vortex is repeatedly generated along the inner wall of the pump by the rotation of the impeller having radial grooves on the outer circumference. As it passes, ozone is mixed and dissolved in seawater.

When ozonated water is injected into the ejector 4 at high pressure through the nozzle of the ejector 4, ozone is dissolved in the supersaturated state in the seawater, and then through the inlet 31 installed at the bottom of the reaction dissolver 5. It is introduced into the reaction dissolver (5).

The ozone-treated seawater is referred to as treated water (hereinafter referred to as 'treated water').

The to-be-processed water transferred into the reaction dissolver 5 is moved upward in the vortex form by the to-be-processed water guide plate 51 formed on the wall of the intermediate wall 43 at the bottom of the reaction dissolver 5. That is, the intermediate wall 43 is rotatably positioned between the outer wall 41 and the inner wall 42, and the blood flows through the inlet 31 because the treated water guide plate 51 is formed in the outer wall 41 direction. Since it is rotated by the treated water, the treated water introduced into the reaction dissolver 5 is moved upward while being rotated along the rotating intermediate wall 43, and then a central space formed at the center inside the reaction dissolver 5 ( 100 is introduced into the top. At this time, ozone dissolved in the treated water is oxidized to inorganic colloidal forming substances or organic matter by oxidizing various soluble inorganic substances and soluble organic substances in which O- ² is contained in the treated water in the process of separating into O2 and O- ² . It produces colloidal forming substances and at the same time shows strong bactericidal power against bacteria.

Then, the water to be treated flowing into the upper portion of the central space 100 moves to the lower portion of the central space 100, and then passes through the inflow holes 70 formed at predetermined intervals in multiple directions at the lower end of the magnetic processor 20 ( 20) is moved inside, the ozone is dissolved more than 95% in the water to be treated while passing through the acid generator 80 provided in the magnetic processor 20, the water to be treated uses the magnetic force of the permanent magnet (90) The inorganic colloidal forming substances or organic colloidal forming substances produced above are aggregated and transferred to the multilayer filter 6 while being pressed at the outlet.

The role of the acid generator is to oxidize and sterilize the excess ozone contained and dissolved in the water to be treated while passing through minute pores of about 3 μm in contact with an inorganic material, an organic material, or bacteria.

The water to be transferred to the multi-layer filter 6 flows into the upper portion of the multi-layer filter 6 composed of the anthracite layer, the sand layer, and the gravel layer from the top and passes through the multi-layer filter 6 while passing through the multi-layer filter 6. The inorganic colloidal forming substances or organic colloidal forming substances produced in 20) are adsorbed and removed and then flowed out to the lower part of the multilayer filter 6 to be transferred to the activated carbon filter 7.

The treated water transferred to the activated carbon filter (7) passes through the activated carbon filter (7) filled with particulate activated carbon, and the residual ozone and organic matter are adsorbed and decomposed, and the purified water is transferred to the treated water storage tank (8). After being stored and transferred to the microfiltration filter 10 by the pump 9, fine particles are filtered out, and the high concentration of salt contained in the water to be treated is transferred to the reverse osmosis membrane filter 12 by the high pressure pump 11. The reverse osmosis principle, that is, the reverse principle of osmotic pressure, uses a semi-permeable membrane that passes water but does not pass salt, etc., so that high pressure is applied from the high water side, leaving only salts and passing pure water to obtain fresh water. To prepare drinking water.

At this time, the various bacteria or contaminants contained in the seawater are completely removed by the semipermeable membrane, but the inorganic substances are not completely removed by the semipermeable membrane, and trace amounts of inorganic substances pass through. Therefore, it is possible to prepare drinking water containing a large amount of various mineral components such as calcium, potassium, magnesium, and the like contained in seawater.

FIG. 2 is a cross-sectional view of the reaction dissolver 5 in the apparatus for preparing drinking water using seawater according to the present invention, and FIG. 3 is a front view of FIG. 2, wherein the reaction dissolver 5 has a cylindrical structure. An inlet 31 through which the water to be treated flows in and a outlet 32 through which the water to be treated flows out are provided at the lower one side of the cylindrical structure, and the inside of the body moves along the wall of the cylindrical structure. The target water guide plate 51 protrudes from the other side wall of the wall on which the triangular hole 50 (see FIG. 3) is formed in a plurality of directions between the outer wall 41 and the inner wall 42 so that the guide plate hole 52 is provided on the front surface thereof. ), An intermediate wall 43 is provided, and a magnetic processor 20 for magnetizing the water to be treated is provided inside the central space 90. Here, the guide plate hole 52 is formed in a direction facing the flow so that ozonated seawater supplied through the inlet 31 enters.

The upper end of the inner wall 42 and the middle wall 43 is the outer wall 41 and the inner wall around the middle wall 43 of the reaction dissolver 5 introduced from the lower portion of the reaction dissolver 5. It is spaced downward from the top of the reaction melter 5 so as to be moved upward through the space formed between the 42 to move to the central space 100 inside the reaction melter 5. And the magnetic processor 20 is located in the center of the inner central space 100 of the reaction dissolver 5, the outside of the magnetic processor 20 is composed of a stainless steel pipe 60 of a cylindrical structure The lower portion of the magnetic processor 20 is formed with an inflow hole 70 through which the water to be treated flows. Inside the magnetic processor 20, an air dispersing device 80 and a water to be treated to diffuse the water to be treated are introduced. It is composed of a permanent magnet 90 for magnetizing.

The diffuser device 80 is composed of a stainless steel particulate ball and composed of a filter sintered to a size of 3 μm, and the permanent magnet 90 has a plurality of rod-shaped magnet bodies arranged so that the N pole and the S pole face each other. When the permanent magnet 80 has a magnetic force of 5,000 to 7,000 gauss, the aggregation effect of the inorganic colloidal forming material or organic colloidal forming materials is best.

The water to be treated introduced into the inside through the inlet 31 installed at the lower end of the reaction dissolver 5 has an outer wall 41 around the intermediate wall 43 having a cylindrical structure inside the cylindrical reaction dissolver 5. A triangular hole 50 formed to protrude in the wall surface of the intermediate wall 43 when moved in the cyclone manner along the space formed between the inner wall 42 and moved to the top of the reaction dissolver 5 along the space between the wall surfaces. And through the guide plate hole 52, the impingement passes through the target water guide plate 51 and moves upward along the spaces formed between the outer wall 41 and the inner wall 42.

At this time, the water to be treated alternates the space formed between the outer wall 41 and the inner wall 42 with respect to the middle wall 43 inside the reaction dissolver 5 from bottom to top on the wall surface of the middle wall 43. When passing through the triangular hole 50 and the guide plate hole 52 formed at regular intervals, the flow direction of the water to be processed is changed while colliding with the guide plate 51, and the wall surface of the cylindrical structure is formed along both spaces between the intermediate walls 43. As it moves along the top, it moves to the upper side, so that various soluble inorganic substances and soluble organic substances contained in the treated water are oxidized by the reduction action of ozone dissolved in the treated water to form an inorganic or organic colloid forming material. At the same time, bacteria are also sterilized.

4 is a cross-sectional view of a magnetic processor installed inside the reaction dissolver in the apparatus for preparing drinking water using seawater according to the present invention.

Figure 5a is a plan view of the intermediate wall installed inside the reaction dissolver in the apparatus for producing drinking water using seawater according to the present invention, Figure 5b is a side view of Figure 5a. FIG. 5C is a cross-sectional view of FIG. 5A, wherein the triangular holes 50 and the guide plate holes 52 formed at regular intervals are alternately disposed from the bottom to the top of the wall of the intermediate wall 43 so that the water to be treated flows into one side of the wall. It is formed in a triangular structure so that the other side of the wall surface of the water treatment plate 51 to be passed along the wall surface of the intermediate wall 43 so that the water to be passed through the triangular hole 50 can be passed while changing the direction of the flow path. The guide plate hole 52 is opened so that the inclined end surface of the water guide plate 51 can be inclined so that the water can pass therethrough.

The main mineral components of the treated water produced by the apparatus for preparing drinking water using the seawater of the present invention are shown in Table 1 below.

TABLE 1

(Unit: mg / l)

division sea water Number of treatments Na 10,500 91.90 Ca 420 2.12 Mg 1,300 5.50 K 380 5.09

The test results of [Table 1] are in accordance with the provisions of Article 3 of the Rules on Drinking Water Quality Standards and Inspection of the Ministry of Environment, and it is found that the treated water contains a large amount of Na, Ca, Mg, K, etc. Can be.

Although the present invention has been described above with reference to the drawings, various modifications and variations will be possible without departing from the spirit of the present invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope without departing from the spirit of the invention.

As described above, in the present invention, an apparatus and a method for preparing drinking water using seawater which undergoes reverse osmosis treatment after ozone and magnetization treatment, the seawater is treated with ozone and magnetization, without using any flocculant, It has the advantage of sterilizing bacteria with the removal of various soluble inorganic substances and soluble organic substances. In particular, by installing an intermediate wall with triangular holes at regular intervals in multiple directions inside the reaction dissolver, the rate of ozone mixed in seawater is sufficiently increased to increase the oxidation rate of contaminants such as soluble inorganic and soluble organics contained in seawater. Since the contaminants can be removed from the device, a separate secondary ozone treatment is not required, thereby shortening the manufacturing process and reducing the manufacturing equipment.

Claims (8)

In the drinking water production apparatus using the seawater which is subjected to the reverse osmosis treatment after ozone and magnetization treatment, A seawater storage tank 1 for receiving seawater taken from offshore seabeds; An ozone generator (2) for generating ozone; A vortex turbine pump (3) for conveying ozone generated by the ozone generator (2) while mixing and dissolving the seawater in the seawater storage tank (1); An ejector (4) for spraying the seawater conveyed from the vortex turbine pump (3) at a high pressure; A reaction dissolver (5) having a magnetic processor (20) therein for applying a magnetic force to the ozonated seawater through the vortex turbine pump (3) and the ejector (4) for magnetization treatment; A multi-layer filter (6), activated carbon filter (7) and micro filter (10) for removing contaminants contained in the magnetized seawater through the reaction dissolver (5); It includes a reverse osmosis membrane filter 12 to obtain a fresh water by removing the salt component of the seawater filtered through the precision filter (10); The reaction dissolver (5) is formed in a cylindrical shape of the top and the bottom is blocked, the inlet 31 is coupled to the end of the circumferential direction of the ozonated sea water supplied from the ejector 4, the outlet (top) 32 is coupled to the outer wall 41, The inner wall 42 is disposed spaced apart from the outer wall 41, the lower end is in close contact with the lower portion of the outer wall 41, the upper end is spaced apart from the upper portion of the outer wall 41, and An intermediate wall 43 is rotatably positioned between the outer wall 41 and the inner wall 42 and includes a plurality of treated water guide plates 51 protruding in the direction of the outer wall 41. 4) The ozone-treated seawater supplied from the water is moved to the vortex by the intermediate wall (43) rotated by the flow is moved to the magnetic processor (20), characterized in that for drinking water using the apparatus. The method of claim 1, wherein the lower intermediate wall 43 of the water treatment plate 51 is formed with a triangular hole 50, the water treatment plate 51 is supplied through the inlet 31 Drinking water production apparatus using seawater, characterized in that the guide plate hole 52 is formed in a direction facing the flow so that ozonated seawater enters. The method of claim 2, wherein the target water guide plate 51 is formed from the lower portion of the intermediate wall 43 corresponding to the position of the inlet 31 to the upper portion and formed in the circumferential direction, the forming position is staggered with each other Drinking water production apparatus using the sea water, characterized in that. According to claim 1, wherein the lower portion of the magnetic processor 20 is formed with an inlet hole 70 through which the water to be treated is introduced, the inside of the air dispersing apparatus 80 and the water to be treated to inflow the water to be treated Drinking water production apparatus using sea water, characterized in that consisting of a permanent magnet 90 to magnetize. 5. The apparatus for producing drinking water according to claim 4, wherein the diffuser (80) is made of a sintered filter having a size of 3 占 퐉 as a fine particle ball made of stainless steel. 5. The apparatus of claim 4, wherein the permanent magnet (90) has a plurality of rod-shaped magnet bodies arranged such that the N pole and the S pole face each other. The drinking water producing apparatus using seawater according to claim 1, wherein the multi-layer filter (6) is composed of an anthracite layer, a sand layer, and a gravel layer from the top. In the method of producing drinking water using seawater, which is subjected to ozone and magnetization treatment and then reverse osmosis treatment using the drinking water production apparatus using the seawater according to any one of claims 1 to 7, An ozone mixing step of supplying the ozone generated by the ozone generator 2 to the sea water and mixing the vortex turbine pump 3 with the ejector 4; A magnetization step of applying the magnetic force to the ozone-dissolved seawater by transferring the ozone-mixed seawater to a reaction dissolver 5 having a magnetic processor 20 having a magnetic force of 5,000 to 7,000 gauss therein; A filtration step of filtration through a multilayer filter (6), an activated carbon filter (7), and a microfilter (10) to remove contaminants contained in the magnetized sea water; Final treatment of the filtered seawater with a reverse osmosis membrane filter (12) to prepare drinking water; Drinking water production method using sea water, characterized in that it comprises a.