KR20120079036A - Method to treat seawater with the bath water of the seawater bathroom - Google Patents

Abstract

PURPOSE: A method for processing seawater to be bath water for a seawater-based bathhouse is provided to sterilize seawater based on a suspended material eliminating process, a magnetizing process, and an AC high voltage-based treating process. CONSTITUTION: A method for processing seawater to be bath water for a seawater-based bathhouse includes the following: collected seawater is filtered through sand filtration to generate filtered water without suspended materials; and harmful microorganisms are sterilized by implementing a magnetizing process and an AC high-voltage-based treating process. The sterilized seawater is used as bath water for a seawater-based bathhouse. Collected deep seawater is used as the bath water for the seawater-based bathhouse instead of the sterilized seawater.

Description

How to treat seawater with bath water in a sea bath {Method to treat seawater with the bath water of the seawater bathroom}

The present invention relates to a method of treating seawater with bath water of a sea bath, and more particularly, surface deep sea water, deep sea water deeper than 200 m deep from the sea surface. To collect seawater such as underground rock salt in coastal areas, underground rock salt in island areas or undersea rock bed salt water and treat it as bath water for sea baths. It is about a method.

In general, seawater such as surface seawater, deep seawater, underground rock salt in coastal areas, underground rock salt in islands, or subterranean underground rock salt is treated with bath water for sea baths. Only the suspended solids are removed and then heated to be used as hot water or as they are used as cold water. In the case of seawater contaminated with harmful microorganisms, there is a problem that the filtration process alone is not hygienic and safe.

In Patent Literature 1, seawater is subjected to a high-pressure alternating-current voltage to electrostatic treatment, far-infrared treatment, and magnetization to small group of water molecules, thereby nuclear magnetic resonance ¹⁷ Although the method of using O-NMR half-width as a bath water in seawater bath is proposed, it is not hygienic in case of seawater with harmful microorganisms because there is no suggestion for sterilization. There is.

In Patent Document 2, there is a method of removing the suspended solids by bathtub circulation filtration and sterilizing by injecting chlorine in a bath system using deep sea water, but chlorine (Cl ₂ ), chlorine dioxide (ClO ₂ ), Sterilization by oxidizing agents such as hypochlorite (NaClO, KClO, Ca (ClO) _2, etc.), chlorine oxide (Cl ₂ O), chloroisocyanurates, hydrogen peroxide (H ₂ O ₂ ), ozone (O ₃ ) In case of producing and sterilizing an oxidizing substance such as sterilization by treatment, sterilization by radiation (γ-ray) irradiation, sterilization by irradiation of electron beam, sterilization by electro-oxidation, discharging treatment of high frequency high voltage power supply, Reacts with bromine, which is a carcinogenic and teratogenesis bromate salt, in addition to harmful chloric acid (HClO ₃ ), chloroacetic acid and dichloroacetic acid. acid, chloroform, dibromochloromethane, trihalomethane, trihalomethane, trichloroacetic acid, bromoform, bromodichloromethane, formaldehyde There is a problem that an oxidation reaction such as (Formaldehyde) can be produced.

Republic of Korea Patent Publication No. 10-2008-0024055 (March 17, 2008) Japanese Patent Publication No. 2002-364914 (December 18, 2002)

The present invention, in the treatment of seawater, such as surface seawater, deep seawater, underground rock salt in the coastal area, underground rock salt in the island area or subsea basal rock salt in the bath water of the sea bath, intake seawater to solve the problems of the prior art The purpose of the present invention is to provide a method for sterilizing harmful microorganisms and using sterilized seawater as seawater bath water without generating harmful side reaction substances by removing suspended solids, magnetizing and alternating high voltage treatment.

In the present invention, in the treatment of one kind of seawater among surface seawater, deep seawater of deep seabed deeper than 200m from sea level, underground rock salt of coastal area, underground rock salt of island area or subsea basal rock salt, as bath water of seawater bath, Intake and pre-treatment of sea water to produce filtered water from which the seawater is collected to remove suspended solids in the sand by sand filtration, and magnetization and alternating high voltage treatment of harmful microorganisms contained in the filtrate (交流 高 電壓 處理) Sterilization process by sterilizing by)) and characterized in that consisting of the step of using the sterilized seawater as seawater bath water.

The present invention is a harmful microorganism without harmful side reactions generated in seawater such as surface seawater, deep seawater deeper than 200m deep from the sea surface, underground rock salt in coastal areas, underground rock salt in islands or subsurface underground rock salt It is expected to be widely used in the field of treating seawater with bath water of a sea bath because it has an effect that can be used as a hygienically safe bath water by sterilizing it.

1 is an overall process of producing a beverage
2 is a sterilization treatment process diagram

Surface deep sea water and deep sea water deeper than 200 m above sea level are shown in Table 1 "Analysis of the Components of Surface Sea Water and Deep Sea Water" compared to fresh water. There are properties that contain various elements such as calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), sodium (Na).

Component Analysis of Surface and Ocean Deep Waters division Murodo, Koji Prefecture, Japan 374m deep sea water Surface waters
Work
half
term
neck Water temperature （℃） 11.5 20.3 pH 7.98 8.15 DO dissolved oxygen (mg / l) 7.80 8.91 TOC Organic Carbon (mg / L) 0.962 1.780 COD _Mn (mg / L)  -  - Soluble evaporation residue (mg / l) 47,750 37,590 M-alkalido (mg / l) 114.7 110.5
week
Yo
won
small Cℓ chloride ion (wt%) 2.237 2.192 Na sodium (wt%) 1.080 1.030 Mg magnesium (mg / l) 1,300 1,310 Ca calcium (mg / L) 456 441 K potassium (mg / L) 414 399 Br bromine (mg / L) 68.8 68.1 Sr Strontium (mg / L) 7.770 7.610 B boron (mg / L) 4.440 4.480 Ba barium (mg / l) 0.044 0.025 F Fluorine (mg / l) 0.530 0.560 ^{_{SO 4 2 - (㎎ / ℓ}} ) 2,833 2,627
spirit
amount
salt
Liu NH ₄ ⁺ ammonia nitrogen (mg / l) 0.050 0.030 NO ₃ ^- Nitrogen Nitrate (mg / l) 1.158 0.081 PO ₄ ^{3 -} phosphate (mg / l) 0177 0.028 Si silicon (mg / l) 1.890 0.320
beauty
Amount
won
small Pb lead (μg / ℓ) 0.102 0.087 Cd cadmium (µg / l) 0.028 0.008 Cu copper (µg / l) 0.153 0.272 Fe iron (㎍ / ℓ) 0.217 0.355 Mn manganese (㎍ / ℓ) 0.265 0.313 Ni nickel (µg / l) 0.387 0.496 Zn zinc (µg / l) 0.624 0.452 As arsenic (㎍ / ℓ) 1.051 0.440 Mo molybdenum (µg / l) 5.095 5.565 Fungus
Number Viable count (dog / ml) 0 540 Coliform bacteria (piece / ml) voice voice

In addition, shallow groundwater and fluid freshwater groundwater exist in the lower surface of the coastal areas and islands with low depths of groundwater. Fluidized freshwater groundwater exists as fresh ground water flowing from a distance, but in coastal and island areas, As the depth deepens, the sedimentary seawater and the freshwater of shallow water flow together, and the brine groundwater exists, and the deeper part of the coastal area and the deeper part of the island area. In the underground aquifers of the coastal seabed, such as in the rock layers of deep seabeds, there is old groundwater from the old seawater system.

In the underground rock formations of coastal and island areas, there is a mixture of brine groundwater caused by the inflow of seawater into shallow water, and the dense brine groundwater is deeper than the freshwater groundwater and deeper than the boundary area. In Esau, brine groundwater is present with a mixture of fresh and seawater.

Deep waters in coastal areas, deep areas in island areas, or subsurface rocks are salt water that is not nutrients such as waves or tides and does not stop and spread, and the water quality is aquifer. The composition of minerals in water varies considerably depending on the type of rock, pressure, temperature, etc., but generally has a characteristic of having high calcium (Ca) content in brine.

Underground salts present in the deep cores of coastal areas, deep cores of islands, or subsurface rocks are the calcium (Ca) component of the sodium (Na) component in the brine and the ions as shown in the following equation (1): As the calcium content increases in the water by substitution reaction, Ca (? Na) -Cl salt solution is produced.

^{X-Ca 2 + + 2Na +} → 2 (X-Na +) + Ca 2 + ... … … … … … … … … … … … … … … … (One)

Where X is the body of the rock.

Excavation of underground saltwater excavated by digging up to 260m deep in the coastal area of Youngdo coastal area in Busan The results of the analysis of the underground brine withdrawn were as shown in Table 2 below.

Analysis of Major Components of Underground Salt in Coastal Rock Bed ingredient Busan Youngdo 260m Underground Brine Busan Dadaepo 1,050m Underground Salt Ganghwa-do 1,002m Underground Brine Na (mg / L) 1,827 6,032 3,243 Ca (mg / L) 11,185 3,312 2,836 Mg (mg / L) 518.4 1,318 431 K (mg / L) 175.5 160 - ¹⁷ O-NMR Half width (㎐) 78 - 65.5 General bacteria (CFU / mL) - - 425 Total coliform group (MPN / 100mL) - - Not detected

As shown in Table 1, the underground brine of the coastal seabed is less Na component than the seawater, but the Ca component is characterized by the presence of Ca (? Na) -Cl type saline groundwater containing high. In addition, the saltwater of the seabed rock is aged for a long time at the mineralization and mineralization of minerals, and the half width value of the Nuclear magnetic resonance ¹⁷ O-NMR spectrum is small. It is also known to have good surface permeability due to its low surface tension.

The seawater, such as surface seawater, deep seawater, underground rock salt in coastal areas, underground rock salt in islands, or subterranean underground rock salt, contains almost all of the elements present on Earth. ) And various marine organisms excrete melanin, which causes blemishes and freckles, and atopy dermatitis caused by inflammatory substances such as histamine and eosinophils. Macrophage, a large amoeba-like phagocyte that preys and digests bacteria, viruses, pulmonary cells, and foreign substances in the body, improves natural healing and improves the mind and body. It is widely used in marine therapy (Talassotherapy) that supports and promotes health promotion.

Marine therapy (Talassotherapy) is the relaxation of health as part of the treatment of physical function or recovery of physical function by increasing the natural healing power of human beings by using seawater, seaweed, and honeysuckle. Natural therapy with a relaxing effect, in the region of Bretagne, the birthplace of marine therapy, refers to total therapy utilizing the characteristics of the marine climate and the resources of the sea, for example, walking along the coast while watching the sunset. It is thought that feeling the "sea" with the five senses is one of the maritime therapies. Recently, from the preventive medical point of view, mentally and physically tired people use it for relaxation, relaxation, leisure, etc. have.

And marine therapy has the effect of enhancing the seven kinds of circulating self-activity (circulating blood, energy circulation, epidermal circulation, dermis circulation, cell circulation, lymph circulation, emotional circulation, etc.).

In particular, deep marine waters include marine animals and plants (seaweed, oceans, fish and shellfish, plankton, etc.) that have settled into the sea over time, and are a natural resource that has been repeatedly degraded, metabolized, and synthesized. It is abundantly contained, and as a result, in the seabed deeper than 50m above sea level, the deeper it is, the more active the macrophage, the substance that stimulates leukocytes, is found in the deeper water than the surface water. This makes it brisk.

Sea water supports the improvement of the mind and body, and ocean therapy that promotes health promotion can activate our vitality with the power of the ocean, the source of life.

The sea, which is the source of all life, contains almost all of the minerals currently identified, and these sea waters contain various minerals and various kinds of useful substances. You can increase your metabolism and improve your skin's balance.

In the present invention, the surface seawater, deep seawater in the seabed deeper than 200m deep from the sea surface, underground rock salt water in the coastal area, island area ( Presenting a method of taking seawater such as underground rock bedrock salt or seabed underground rock bedrock salt of 島嶼 地域 and treating it with bath water of a sea bath, which will be described in detail below with reference to the accompanying drawings.

Ⅰ. Seawater withdrawal and pretreatment filtration step

Superficial seawater, deep seawater in deep seabeds deeper than 200m above sea level, subterranean saltwater in coastal areas, island areas Seawater, such as subterranean rock salt or subterranean bedrock salt water, was collected and sand filtered to give a concentration of suspended solids (SS) of 20 to 50 mg / ℓ. The seawater prefiltered to the range is sent to a sterilization step.

The intake method of surface sea water or deep sea water is installed by pipes in the seabed, or it is installed lower than sea level, and it is collected according to the siphon principle and sent to the sump.

Intake of seawater such as underground rock salt in the coastal area, underground rock salt in the island area, or subsurface underground rock salt in the subterranean rock The water wells are excavated to the aquifer, and the water wells are installed, the underground brine is collected and sent to the sump.

The excavation of the water intake hole is further excavated to the solid rock line after the external casing is installed, and the initial stratum excavation diameter is at least 100 mmφ than the external casing aperture to secure the initial grouting thickness. Excavation is greatly over.

Grouting is a reverse-circuit pressure cement grouting from the bottom of the eyeglass to the space between the casing and the eyeglass to prevent the inflow of contaminated water from the top after the end of the upper section. Until implemented. Grouting injection material uses cement mixture containing about 3 vol% of bentonite.

After the grouting is completely solidified, excavate to the lower aquifer with a diameter of 150 ~ 250mmφ and verify the grouting construction, casing installation, aquifer, etc. Install a pump and install a meter and protection device that can automatically measure the amount of water intake.

The wells are equipped with monitoring wells and continuous automatic measuring devices (water level, conductivity, temperature, pH, etc.). Underground brine withdrawn from the intake well is transferred to the sump.

The sump is fitted with a sealed lid and a sterilizer and an air filter.

The seawater stored in the sump is sent to the sand filtration tower filled with sand from the pretreatment filtration process to remove suspended solids (SS) from the water and then to the sterilization step.

The sand packed in the sand filtration column is filled with sand having an effective size of 0.45 to 0.7 mm, a uniformity coefficient of 1.7 or less, a maximum diameter of 2.0 mm or less, and a minimum diameter of 0.3 mm or less. Even if unavoidable, the maximum diameter and the minimum diameter should be 1% or less.

The sand filtration tower performs rapid sand filtration or slow sand filtration, and selects one of the two according to the amount of water and the concentration of suspended solids in water. In the case of rapid sand filtration, the filtration rate is 120-200 m / day and the thickness of the filtrate Is designed to 60 ~ 70㎝, in the case of rapid sand filtration 4 ~ 5m / day, the thickness of the filter layer is designed to 70 ~ 90㎝.

If the turbidity is less than 2 degrees (NTU, Nephelometric Turbidity Unit) in the seawater, and the concentration of suspended solids is not a problem, the sand filtration is omitted, and the collected seawater is sent to the sterilization step.

 II. Sterilization Step

In general, water sterilization includes heat sterilization heated to 110 to 120 ° C., heat sterilization under high pressure, sterilization by ultraviolet irradiation, sterilization by radiation (γ-ray) irradiation, sterilization by heat or photoelectron beam irradiation, and electrooxidation. Sterilization by sterilization, sterilization by injection of oxidant (sterilizer), sterilization by discharge treatment of high frequency high voltage power supply, sterilization by pressurized energization treatment, pulse treatment of AC high electric field Sterilization by Joule's heat applied by applying AC power, sterilization by Joule's heat, sterilization by energization of DC power or magnetization treatment (also called magnetic treatment). Sterilization is performed by a combined method.

Seawater is chlorine (Cl ₂ ), chlorine dioxide (ClO ₂ ), hypochlorite (NaClO, KClO, Ca (ClO) _2, etc.), chlorine oxide (Cl ₂ O), chloroisocyanurates, hydrogen peroxide (H ₂ Sterilization by oxidizing agents such as O ₂ ) and ozone (O ₃ ), sterilization by radiation (γ-ray) irradiation, sterilization by electron beam irradiation, sterilization by electro-oxidation, discharging treatment by high frequency high voltage power supply In the case of sterilization by producing an oxidizing substance such as bromate salt, chloric acid (HClO ₃ ), chloroacetic acid, dichloroacetic acid, chloroform, Oxidation reactions such as dibromochloromethane, trihalomethane, trichloroacetic acid, bromoform, bromodichloromethane, and formaldehyde Can be generated Sterilization method that an oxidizing agent or oxidizing substances generated because shall not.

Sterilization treatment in the present invention is a method of sterilization by a constant voltage treatment by the magnetization treatment and alternating current high voltage (交流 高 電壓) does not produce harmful substances in the human body with reference to Figure 2 "sterilization process flow chart". It will be described in detail as follows.

1. Magnetization process

When the pretreated filtered seawater is supplied to the seawater storage tank (1), the seawater transfer pump (2) is supplied to the magnetization apparatus (3) for magnetization, and then sent to the sterilization tank (4).

The magnetizer 3 is a 0.5 to 5 volt (coil) wound on a coil wound around a cylindrical conductive tube of an insulating material such as synthetic resin (PVC, PE, styrene resin, etc.), ebonite, FRP, Bakelite, etc. A solenoid type magnetizer in which a magnetic field is formed inside the coil when a low voltage current in the Volt range is applied, or a magnetic flux density of 10,000 to 15,000 G (Gauss) Use one type of magnetizer with permanent magnet magnetized in the range.

When the fluid (water) passes through the magnetic field between the north pole and the south pole of the magnetizer 3 at right angles, electromotive force is generated by magneto-hydro-dynamics (MHD) and the wave of electrons is generated. As the group of water molecules collapse and become smaller due to waves, surface tension decreases, so that the penetration force becomes high, and the redox potential decreases so that the water is reformed. In addition, while killing bacteria such as E. coli, Legionella, resistant bacteria contained in the water, while destroying the cells of the bacteria to be sterilized, or inhibit the growth of bacteria.

In the present invention, since the sterilization treatment by the magnetization treatment can further improve the sterilization efficiency by treatment in combination with the other sterilization treatment methods mentioned above, instead of being alone, It is a combination of sterilization treatment by constant voltage treatment by high voltage, and it is a sterilization treatment method that does not produce side reactions harmful to human body.

Important functions such as cell division of bacteria and osmotic pressure regulation of cell membranes are controlled by weak electric signals (pulse signals) in cells. When water is magnetized in the magnetic field of the magnetization device, direct current flows by electromotive force, and when direct current is applied directly to the cell membrane of bacteria contained in the water, abnormality occurs in the command system by pulses. It impairs osmotic control function, which finally kills all bacterial cells.

When the pre-filtered seawater passes through the magnetic field between the north pole and the south pole of the magnetizer 3 at right angles, the generated voltage E is between the flow rate of water V and the north pole and the south pole of the magnetizer 3. The law of electromagnetic induction proportional to the magnetic force (B) of is established, and the MHD potential difference is proportional to the magnitude of the magnetic force and the flow velocity of the fluid.

E = V x B... … … … … … … … … … … … … … … … … … … … … (17)

In the magnetization process, the higher the magnetic force (magnetic flux density) of the magnetizing device, the higher the flow rate of the fluid passing through the magnetic field, the higher the magnetization processing efficiency. Therefore, in the present invention, a magnetic flux density of 4,000 to 12,000 G (Gauss) magnet is used, and the cross-sectional area of the magnetic field is set so that the flow rate of the fluid passing through the magnetic field is in the range of 2 to 6 m / sec.

Therefore, when the processing capacity is smaller than in normal operation and the flow rate is 2 m / sec or less in the magnetic field at the flow rate supplied from the seawater transfer pump 2 to the magnetization apparatus 3, the flow rate discharged from the magnetization apparatus 3 A part is returned to the seawater storage tank 1 and operated so that a flow velocity may be 2 m / sec or more in a magnetic field.

As the permanent magnet, neodymium magnet (Nd-Fe-B) or samarium cobalt magnet (Sm-Co) having a high magnetic flux density is preferably used. Because magnetization is processed in very few picoseconds. The residence time of the fluid in the magnetic field is not a big problem.

If the contamination level of the harmful microorganism is low, the magnetization process is omitted, and the pre-filtered seawater is supplied to the seawater storage tank 1, and the seawater transfer pump 2 is sterilized by an AC high voltage. Send to sterilization tank (4).

2. Sterilization process by AC high voltage

The sterilization process by AC high voltage includes a high voltage applying electrode 5 for applying an AC high voltage to the sterilization tank 4 and a ground electrode 6 connected to the earth ground of the earth. It consists of the structure which installed) alternately.

While supplying the seawater treated in the magnetization process to the sterilization tank 4, the AC high voltage of 6,000 to 10,000 volts is output from the output terminal 8e of the AC high voltage generator 8 for 20 minutes to 6 hours. When applied, the bacteria are killed and sterilized and then sent to the bath water storage tank 9.

The AC high voltage generator 8 is a transformer for AC high voltage generation, as shown in FIG. 2, using an external iron type circular coil type using a stratified iron core 8c, and using an AC power source of 110 to 220 volts. The current regulated by the variable resistor 8a is connected to the primary winding 8b of the circuit of the primary side of the transformer, and the insulation terminal 8f of the secondary winding 8d of the secondary circuit of the transformer is insulated. The output terminal 8e of the secondary winding 8d is connected to the high voltage applying electrode 5 of the sterilization tank 4. AC high voltage generator 8 is grounded (8g) to the ground.

An AC power source of 110 to 220 volts is connected to the AC high voltage generator 8, and the variable resistor 8a is adjusted to 6,000 to 10,000 volts AC at the secondary output terminal 8e of the transformer. When a high voltage is applied to the high voltage applying electrode 5 of the sterilization tank 4, all the bacteria contained in the water are generated while the constant voltage is generated between the ground electrodes 6 treated with the ground 7 on the ground. It is sterilized by killing.

The capacity of the sterilization tank 4 determines the sterilization treatment time according to the state of the seawater and the applied voltage of the alternating high voltage, but is generally 4 to 6 hours. In addition, the material of the sterilization tank 4 is flame resistant and corrosion resistant. The concrete structure is coated with one of epoxy resin, fiber glass reinforced plastic or rubber. Or lining, polyvinyl chloride (PVC), acrylonitrile butadiene styrene copolym (ABS), polyethylene (PE), polyethylene (PP), titanium (titanium), or flame-resistant steel.

The high voltage applying electrode 5 and the ground electrode 6 are installed at intervals of 5 to 20 cm, and the material is coated with RuO ₂ -TiO ₂ on a titanium plate or a titanium plate, which is flameproof and corrosion resistant. do.

When the concentration of suspended solids in the seawater is low and turbidity is 2 degrees (NTU), and harmful microorganisms are not a problem, the seawater is directly used as seawater bath water.

III. Step to use as salt water

When the seawater sterilized in the sterilization step is supplied to the bath water storage tank 9, the bath water transfer pump 10 is supplied with hot water after heating to the hot water bath and supplied to the cold bath as it is.

After the sea bath is finished, the fresh water containing no salt is sent to the heating process, and the warmed hot water and cold water are sent to a shower to remove the salt from the body and finish the bath.

The discharged water discharged from the hot water, the heavy water, the cold water and the shower is sent to the purification process and discharged after purification.

1.5 tons (1.5㎥) of underground brine taken from the 1,002m underground rock in the ground of Ganghwa-do, shown in Table 2 above, was injected into a polyethylene tank with a diameter of 1,280mmΦ and a height of 1,480mm, and the capacity was 6㎥ / hour. A magnetic flux density of 11,200 gauss magnetized at the discharge part of the centrifugal pump is passed through the magnetic field of a magnetizer equipped with a neodymium magnet (Nd-Fe-B) permanent magnet at 2.2 m / sec. After carrying out the magnetization for 30 minutes while conveying 100% to the polyethylene tank, six titanium plates 1,000 mm long and 1,000 mm long were installed in a polyethylene tank 1,200 mm wide, 1,200 mm long and 1,500 mm high, and three of them were The medium is grounded to the ground, and the remaining three sheets are injected with magnetized seawater to the sterilization tank connected to the output terminal of the AC high voltage generator, and a high voltage of 9,000 volts is applied from the AC high voltage generator. Results were as a measure of the content of the following Table 3.

As a result of sterilizing seawater Item enemy Magnetized water AC high voltage (processing time) 20 minutes 1 hours 2 hours 3 hours General bacteria (CFU / mL) 425 126 52 18 6 Not detected

The sterilization method of the present invention is a physical sterilization method by a constant voltage applied with magnetization and an alternating high voltage, and is not chemically sterilized by an oxidant, so that no harmful side reactions are generated, as shown in Table 3 above. It is expected to be widely used for sterilization of seawater or beverages because of its sterilization effect.

1: Seawater Storage Tank 2: Seawater Transfer Pump
3: magnetization device 4: sterilization tank
5: high-voltage electrode 6: earth electrode (接地 電極)
7: Ground 8: AC high voltage generator
8a: variable resistance 8b: primary winding
8c: iron core 8d: secondary winding
8e: output terminal 8f: insulated terminal
8g: Ground 9: bath water storage tank
10: water feed pump N: magnet N pole
S: S pole of magnet

Claims (2)

One of surface seawater, subterranean rock salt in coastal areas, subterranean rock salt in islands, subsea basal rock salt, or deep sea water In treating seawater with bath water of seawater bath,
Intake and pre-treatment filtration step of the seawater to produce the filtered water to remove the suspended solids in the water by sand filtration of the collected seawater,
A sterilization step of treating the harmful microorganisms contained in the filtrate with seawater sterilized by magnetization and alternating current high voltage treatment;
The method of treating the seawater characterized in that consisting of the step of using the sterilized seawater as the bath water for bath water of the sea bath. In the case of marine deep water where suspended solids and harmful microorganisms are not a problem, instead of using the sterilized seawater of claim 1 as a bath water, the deep sea water is used as a bath water.

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