KR20030080361A - Oxidative radical generator, radical solution and water treatment system thereof - Google Patents

Abstract

PURPOSE: Provided is a radical oxidizing water generation apparatus for generating radically oxidized water using metal impregnated catalyst, and further provided is a water treatment system using the same apparatus and oxidized water generated by the apparatus. CONSTITUTION: The apparatus comprises an oxidizing agent tank(112) for storing diluted oxidizing agent with concentration of 100-3000 ppm, a filter basin(114) for removing foreign matters from the diluted oxidizing agent, an activated carbon fiber filter(114a) installed in the filter basin(114) for removing contaminants from the diluted oxidizing agent, an oxidation catalyst reactor(116) for causing oxidation catalyst reaction, and a catalyst(116a) provided in the reactor(116) for generating oxidized water. The water treatment system comprises an oxidizing agent tank(112) for storing diluted oxidizing agent with concentration of 100-3000 ppm, a filter basin(114) having an activated carbon fiber filter(114a) therein for removing foreign matters from the diluted oxidizing agent, an oxidation catalyst reactor(116) for causing oxidation catalyst reaction, and a catalyst(116a) provided in the reactor(116) for generating oxidized water, an electrostatic field reactor(120) for decomposing organic and inorganic contaminants in raw water by causing reaction between radically oxidized water generated by the catalyst oxidation reactor(116) and the contaminants in the raw water, a coagulant feeder(134) for feeding coagulant into water treated by the electrostatic field reactor(120), and a mixing device(140) for mixing the treated water and the coagulant.

Description

Radical oxidized water generating device, radical oxidized water and water treatment system using same {Oxidative radical generator, radical solution and water treatment system

The present invention relates to a water treatment system for treating organic-inorganic contaminants contained in water, and more particularly, to the radical oxidation water (active oxidation water) generated through an oxidation catalyst and organic-inorganic contaminants in raw water in an electrostatic field reaction apparatus. The present invention relates to a radically oxidized water generating device, a radically oxidized water, and a water treatment system using the same, which greatly increase the treatment effect of raw water.

In general, it is well known that the development of water treatment technology is rapidly occurring in proportion to environmental problems. As the currently applied water treatment technology, the biological treatment method and the physical treatment method and the chemical treatment method are being applied in an integrated manner, but there is a problem that the nitrogen component contained in the raw water is difficult to be treated physically and chemically.

On the other hand, in recent years, the electric water treatment method has also emerged, which is an electrical polarity of contaminants by adding electrolyte or other additives to water, wastewater, sewage, and sewage, and then applying electricity to the anode and cathode installed in the reactor. According to the technique to attach the contaminants to the anode or cathode, or to aggregate the contaminants and additives or to decompose the contaminants electrically, it is known as a technique mainly used for heavy metal wastewater or high concentration dye wastewater treatment.

In addition, in recent years, the catalyst technology applied only in the chemical field has been gradually applied to the water treatment field, and a water treatment method using a photocatalyst corresponds to this. These photocatalysts play a role of accelerating the reaction rate, and are classified into homogeneous photocatalysts and heterogeneous photocatalysts present in solution in a molecular state, and active research and development are being promoted. Titanium dioxide (TiO₂) is a representative photocatalyst and has been applied to the water treatment field, and the oxidation catalyst has a great value to be applied to water treatment because the metal moves to the oxide material through which electrons pass. However, these catalyst technologies have not been actively applied to the water treatment process until now due to the problem that the mechanism of the catalytic reaction is complicated and the principle is not easy to grasp.

In the water treatment technology using plasma, the plasma is a low temperature plasma used to remove nitrogen oxides or sulfur oxides, to remove odors from wastewater treatment plants, to dioxin treatment of incinerators, and to treat wastewater. There is a method. The electron beam plasma method uses an electron accelerator to inject an electron beam into a gas. There are a method of injecting a plasma generated by ionization by an electron beam into wastewater and directly irradiating an electron beam into the wastewater. The discharge method, also called the corona discharge method, was developed to solve the shortcomings of the electron beam method. During the research to remove nitrogen oxides and sulfur oxides at the same time, it was found that the corona discharge without the electron beam had an excellent removal effect. A lot is done.

In addition to the above-described technology, a method of removing a scale using a high frequency electrode is commercially used in Korea. Existing methods use only the energy from the electrode, leaving room for improvement in application effectiveness.

In addition, the water treatment technology using ultraviolet light is used alone or in combination with ozone in water treatment or sterilization of water purifiers, and is mainly used as an auxiliary means for oxidizing and oxidizing contaminants in waste water treatment. Most waters are contaminated and basically contain inorganic or organic particles. This water treatment technology is a method of removing contaminants in water through decomposition, adsorption removal and coagulation sedimentation of organic and inorganic particles in water.

More specifically, the removal of particles can be removed by chemical treatment or physical or electrical treatment. In chemical treatment, a flocculant is mainly used, and physical treatment is performed through filtration using an intermediate medium. In the electrical treatment, an aluminum plate or an iron plate is dissolved to coagulate using eluted metal.

First, the most representative method is to use a coagulant most commonly among chemical treatment methods. The use of inorganic or organic coagulants to change the surface properties of the particles to form flocs and to precipitate them is by far the most common method. As the coagulant to be used, an aluminum or iron coagulant is used, and as the organic coagulant, various kinds such as polyacrylamide, poly-d mac and polyamine are used.

In addition, when the suspended solids are removed by a chemical treatment method, there is a disadvantage in that sludge is inevitably generated and treatment costs increase due to the use of chemicals. The biggest advantage of the chemical treatment is that it can be removed by flocculation down to 0.1 micron particle size. Therefore, the chemical coagulation treatment method is essentially used at the time of purified water treatment. In general, the surface of particles dispersed in water is generally -charged, the same type of particles repel each other, but + metal component from the outside when the influx of the neutral reaction occurs on the surface of the particles are attracted to each other by the force of mutual growth This is induced and the floc grows. As the flocs grow, they settle down and accumulate as sludge, which is discharged periodically. However, the separation of water and particles through this process requires enormous processing space, processing time and processing costs.

In addition, since the water always contains an alkali component, if the alkalinity is high, scale may be generated on the inner wall of the pipeline, but if the alkalinity is low, the alkaline component attached to the inner wall of the pipeline may elute into the water and corrode the pipeline wall. Water that can corrode pipelines is called corrosive water, and the alkali control of the water is quite important. If the hardness is high, the soap will not loosen, which will cause considerable difficulty in washing. In addition, if water continues to pass through the same pipe line, the radius of the pipe line may decrease due to the generation of microorganisms, thereby increasing the water pressure. In particular, when the cooling water is used, the corrosiveness of the pipe is strong because the temperature change is severe.

The general method for preventing the scale of the inner wall of the pipeline is described as follows. Increasing the pH of the water forms and precipitates CaCO ₃ or Mg (OH) ₂ , so that the water is softened, and the most commonly used Ca (OH) ₂ or NaOH may be used depending on the conditions. Most water purification plants in Korea use Ca (OH) ₂ , and some use NaOH. Softening refers to the removal of Ca or Mg ions in water to an appropriate level. CO ₂ precipitates when it encounters Ca (OH) ₂ .

Ca (OH) ₂ + CO ₂ → CaCO ₃ (s) + H ₂ O ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ (1)

Ca (HCO ₃ ) ₂ + CO ₂ → ₂ CaCO ₃ (s) + 2H ₂ O ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ (2)

Mg (OH) ₂ + CO ₂ → CaCO ₃ (s) + MgCO ₃ + 2H ₂ O ‥‥‥‥‥‥‥‥‥‥‥‥‥ (3)

MgCO ₃ + Ca (OH) ₂ → Mg (OH) ₂ (s) + CaCO ₃ (s) ‥‥‥‥‥‥‥‥‥‥‥‥‥ 4

The slaked lime required to remove Mg ions is theoretically as follows.

Mg (HCO ₃ ) ₂ + 2Ca (OH) ₂ → Mg (OH) ₂ (s) + 2CaCO ₃ (s) + 2H ₂ O ‥‥‥‥‥‥‥ (5)

MgX + Ca (OH) ₂ → Mg (OH) ₂ (s) + CaX (s) ‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 6

CaX + Na ₂ CO ₃ → CaCO ₃ (s) + Na ₂ X ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 7

(Where X is a halide and corresponds to an atom such as Cl)

MgCO ₃ has a high solubility and should be removed in the form of Mg (OH) ₂ . To remove Mg ²⁺ , HCO ₃ ⁻ ions must first be converted to CO ₃ ^2– ions. In the next step, the addition of OH ⁻ ions causes Mg ²⁺ to form and precipitate insoluble Mg (OH) ₂ . Theoretically, CaCO ₃ can be removed up to 18 mg / l, but the minimum concentration that can be actually removed is known to be 30 mg / l (equivalent to 0.6 meq / l). In the actual field, the equilibrium condition is changed according to the ambient conditions and the residence time, which is a significant difference from the experimental value. Theoretically, it would take 90 minutes to reach the minimum hardness concentration at 1 ° C., while it would take 10 minutes to minimize to the same concentration at room temperature. Mg ions can usually be reduced to 10 mg / l (0.2 meq / l). In this case, limestone should be added above the chemical equivalent to increase the pH. Removal of excess alkalinity is possible by blowing carbon dioxide.

^{_{2OH - + CO 2 → CO 3}} 2- + H 2 O ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ (8)

^{_{CO 3 2- + H 2 O →}} CO 2 + HCO 3 - ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ (9)

One way to remove excess Ca ²⁺ is to add Na ₂ CO ₃ . This is because addition of Na ₂ CO ₃ with limestone may lead to precipitation of CaCO ₃ and Mg (OH) ₂ . The excess OH ^- may be neutralized by addition of an acid.

In addition, commercially recently developed technologies to prevent scale by using ultrasonic waves, such as to increase the particle surface energy of the scale and to use the wave principle of water, there is also a technique to prevent the scale by using the oxidation power of ozone. In addition, a method of preventing or sterilizing scale by using a magnetic field of a permanent magnet or an electromagnet has been developed and applied. Recently, a system injecting high energy into water excites water molecules using magnetohydrodynamic principles to increase scale. Prevention technology has also been developed and applied to the field. Such a device was developed for the purpose of preventing scale, but has a problem of being generally expensive.

On the other hand, suspended solids in water can be removed in various ways. As described above, there is a method of physically filtration or removal using membran, but it is common to treat the chemical treatment in parallel due to an increase in treatment cost. In most cases, flocculation agents are used as chemical methods. Metal coagulants are used to remove organic and inorganic substances in water from sewage, sewage, sewage, wastewater, and sewage treatment plants. The main coagulants are polyaluminum chloride (PAC), polyaluminum silicate (PACS), and sulfuric acid. Alum, ferrous sulfate, ferric sulfate, ferrous chloride, ferric chloride, and organic coagulants are used. In addition, as the organic flocculant, polyacrylamide, polyamine, poly-dmac and the like are used in the field.

As described above, when the water treatment using the flocculant has a disadvantage of increasing the sludge treatment cost after treatment. That is, since Al ³⁺ metal ions become Al (OH) ₃ and are included in the sludge, the amount of increase of the sludge increases from 10% to 25%, which is a relatively high treatment cost. Since sludge has not been disposed of since 2002, the plant that discharges the sludge has come to the point where a separate treatment method should be taken.

As a recently developed method, a method of using Al ³⁺ ions or Fe ³⁺ ions, which are dissolved using electrocoagulation (using Al or Fe electrodes), as a cohesive component has also been developed and used. Electrocoagulation is the use of Al or Fe metal dissolved through an aluminum electrode or an iron electrode as a cohesive metal, so functionally coagulation is the same as adding a coagulant from the outside. In this case, there are disadvantages such as generation of hydrogen ions (injury), limitation of dissolution concentration, and contamination of the poles, and thus they are not used in Korea except for special treatment. Because of these phenomena, it is known that there are many obstacles to commercialization because of limitations in commercialization.

Processes using electricity or lasers and plasmas have also been actively developed. In the past, biological treatment and chemical treatment were mainly used, but recently, water treatment technology for decomposing organic particles using electron beam or laser has been developed and applied in the field. Scanning an electron beam at a location containing soluble organic matter can receive energy and decompose the organic material particles. In addition, techniques for using lasers to decompose sludge have been developed.

As mentioned above, the conventional water treatment technology has been concentrated on the coagulation and sedimentation treatment by chemical injection, activated carbon filtration, oxidative decomposition, sterilization by ozone, and biological treatment using microorganisms. Water treatment technology using advanced technologies such as plasma, ultraviolet light, and catalytic technology is in the commercialization stage.

As described above, the present invention solves the problems of water treatment technologies such as flocculation and sedimentation by chemical injection, activated carbon filtration, oxidative decomposition, sterilization by ozone, and biological treatment using microorganisms as described above. Invented to develop technology that can cope with water treatment technology, it mainly produces radically oxidized water (active oxidized water) by using metal-supported catalyst, and continuously enters the electrostatic field reactor to enter water in raw water. Radical oxidized water generating device and radicals that maximize the treatment efficiency of raw water by changing the physical and chemical properties of certain molecules including molecules to induce decomposition, activation and aggregation Its purpose is to provide oxidation water and a water treatment system using the same.

The second object of the present invention is to promote the ionization of water through the addition of radical oxidized water and the electrostatic field reaction device to decompose or separate particles or organic matter in raw water to maximize the treatment efficiency of raw water, thereby reducing the amount of flocculant input. Of course, to reduce the amount of sludge generated after the water treatment.

A third object of the present invention is to install a water treatment system according to the present invention in a boiler and a vehicle using diesel oil to increase the efficiency of fuel by activating functional groups of molecules constituting diesel fuel.

A fourth object of the present invention is to apply the water treatment system according to the present invention to the treatment of inflow or circulating water in a swimming pool so as to kill bacteria contained in the water.

The fifth object of the present invention is to prevent the build-up of scale on the inner wall of the pipeline by treating the inlet water for hot and cold circulation by applying the water treatment system according to the present invention during the hot and cold circulation of industrial water, as well as the inner wall of the pipeline To remove scales that have accumulated

Furthermore, the present invention is to treat the influent using the water treatment system according to the present invention to be used for water supply of agricultural products and animals to increase the growth rate of plants and animals, as well as to increase the yield. .

1 is an overall configuration diagram schematically showing a water treatment system using radical oxidized water according to the present invention.

Figure 2 is a schematic cross-sectional view showing a fibrous activated carbon filter of the water treatment system using the radical oxidation water according to the present invention.

Figure 3 is a schematic cross-sectional view showing an oxidation catalyst reaction tank of the water treatment system using radical oxidized water according to the present invention.

Figure 4 is a schematic cross-sectional view of a second embodiment showing the electric field reaction tank of the water treatment system using radical oxidized water according to the present invention.

5 is a schematic cross-sectional view of a third embodiment showing an electric field reaction tank of a water treatment system using radical oxidized water according to the present invention;

Figure 6a is a view showing a state in which the scale is formed inside the pipeline before the installation of the water treatment system using the radical oxidation water according to the present invention.

Figure 6b is a view showing a state in which the scale inside the pipeline is removed after installation of the water treatment system using the radical oxidation water according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

100. Water treatment system 110. Radical oxidation water generator

112. Oxidizer Storage Tank 114. Filtration Tank

114a. Fibrous Activated Carbon Filter 116. Oxidation Catalyst Reactor

116a. Catalyst 120. Electrostatic Field Reactor

122. Electrostatic Field Reactors 124, 224. AC / DC Rectifiers

126, 126a, 226, 226a. Electrode 132. Flocculant reservoir

134. Coagulant input tube 140. Admixture tube

150. Oscillator 160. Bypass tube

170. Blower 172. Air injection pipe

The present invention configured to achieve the above object is as follows. That is, the radical oxidation water generating device according to the present invention is an oxidant storage tank for storing an oxidant dilution solution in which the oxidant is dissolved in water at a dilution concentration of 100 to 3000 ppm; A filtration tank for filtering foreign substances by passing a predetermined concentration of the oxidant diluent solution introduced from the oxidant storage tank; A fibrous activated carbon filter installed inside the filtration tank to filter contaminants contained in the oxidant dilution solution introduced from the oxidant storage tank; An oxidation catalyst reaction tank for oxidizing and reacting the oxidant dilution solution introduced through the filtration tank; And a catalyst in which a metal is supported on a carrier which is generated by radical oxidation water in the course of passing the oxidant dilution solution filled with the protective wire mesh inside the oxidation catalyst reactor.

In the above configuration, the oxidizing agent may be hypochlorous acid (NaClO), stabilized chlorine dioxide (NaClO ₂ ), sodium chlorate (NaClO ₃ ), hydrogen peroxide (H ₂ O ₂ ), ozone (O ₃ ), chlorine dioxide (ClO ₂ ), chlorine (Cl ₂ ) may be used alone or in combination of two or more.

In the above-described configuration, the fibrous activated carbon filter has a cylindrical shape of a fibrous activated carbon sheet supported on at least one of silver (Ag), aluminum (Al), iron (Fe), and copper (Cu) metal at a ratio of 0.1 to 10% by weight relative to fibrous activated carbon. A protective wire mesh is formed on each of the inner circumferential surface and the outer circumferential surface to maintain a shape of the fibrous activated carbon sheet.

On the other hand, as a carrier constituting the catalyst described above, one or more carriers of silica-alumina, alumina, zeolite, silica, diatomaceous earth, celite, perlite, ceramic honeycomb are used, and the supported metals are chromium, iron, titanium, tungsten, One or more of cobalt, nickel, copper, manganese, platinum, zirconium may be supported in a range of 0.1 to 15% by weight relative to the carrier.

In the above-described configuration, the contact speed between the oxidant dilution solution and the catalyst is 10 to 1000 ml / hr · g-cat per 1 g of catalyst, and the catalyst temperature when the oxidant dilution solution is passed is preferably 50 to 150 ° C. .

On the other hand, the radical oxidation water according to the present invention is one or more of the oxidizing agent dilution solution in which the oxidizing agent is dissolved in a dilution concentration of 100-3000 ppm in water (Ag), aluminum (Al), iron (Fe), copper (Cu) metal. The contaminant was filtered through the fibrous activated carbon filter supported at a ratio of 0.1 to 10% by weight, and then chromium was deposited on a carrier made of one or more of silica-alumina, alumina, zeolite, silica, diatomaceous earth, celite, perlite and ceramic honeycomb. , iron, titanium, tungsten, cobalt (expressed in or OH ·) nickel, the OH radical generated by copper, manganese, platinum, through the one or more of the zirconium metal to 0.1 to 15% by weight was impregnated into the catalyst, OCl ^- It means a solution composed of intermediate species having excellent oxidation power such as HOCl.

In the constitution of the water treatment system using the radical oxidized water of the present invention, an oxidant storage tank storing an oxidant dilution solution in which an oxidant is dissolved in water at a dilution concentration of 100 to 3000 ppm; A filtration tank provided therein with a fibrous activated carbon filter for filtering contaminants contained in the oxidant dilution solution introduced from the oxidant storage tank; An oxidation catalyst reaction tank in which a metal-supported catalyst is filled in a carrier for producing an oxidant dilution solution by radical oxidation by reacting the oxidant dilution solution with the oxidant dilution solution introduced from the filtration tank; Electrostatic field reacting organic-inorganic pollutants in radical oxidized water and influent water by changing the physicochemical characteristics of certain molecules including water molecules in water through electrostatic field. Reactor; Coagulant injecting means for injecting a coagulant into the treated water treated by the electrostatic field reaction apparatus; And means for admixing the treated water with the flocculant introduced.

Electrostatic field reaction apparatus in the above-described configuration is formed in one lower portion of the electrostatic field reaction tank having a non-conductive material formed in the inlet for inflow source and radical oxidation water inlet and the outlet for one side of the upper inlet for flowing out the treated water after the reaction; An AC / DC rectifier installed in an electrostatic field reactor and converting and supplying an AC voltage to a DC voltage; And it may be made of an electrode to generate an electrostatic field through a DC voltage supplied by one or more installed upright inside the electrostatic field reactor.

The material of the electrostatic field reaction tank described above may be made of any one of polyethylene, polypropylene, high-strength polyvinyl resin, polyurethane, non-conductive aluminum alloy.

The electrode bar may be made of any one material of carbon, aluminum, copper, titanium, and stainless steel. In particular, in the present invention, stainless steel was used as the electrode.

It is preferable to form a coating layer coated with polypropylene or polyethylene on the surface of the electrode bar described above.

The above-mentioned electrode may be made of a single structure of a straight line upright from the top of the inside of the electrostatic field reaction tank, or may be made of a single structure of the screw form. In addition, two electrodes may be installed in an upright position from the bottom of the inside of the electrostatic field reactor. In this case, an agitator may be further installed between the two electrodes to stir the inflow water and the radical oxidation water in the electrostatic field reactor.

The above-mentioned mixing means slows down the flow rate by flowing the first treated water flowing out through the outlet of the electrostatic field reactor into two separate pipes, and then forms a single pipe structure that is combined again to form the first treated water without external energy. It can be configured to induce instantaneous miscification of the flocculant with.

On the other hand, the above-described electrostatic field reaction tank may be further composed of a blower and an air injection pipe means for injecting air into the electrostatic field reaction tank.

On the other hand, a vibrator for finely vibrating the electrostatic field reactor to detach particles attached to the inner wall may be further configured on the lower side of the electrostatic field reactor.

In addition, a bypass pipe may be further configured to bypass the primary treated water that is processed in the electrostatic field reactor and flows out through the outlet to the inlet of the electrostatic field reactor.

Hereinafter, a radical oxidation water generator, a radical oxidation water, and a water treatment system using the same according to a preferred embodiment of the present invention will be described in detail.

Figure 1 is a schematic overall view showing a water treatment system using a radical oxidation water according to the present invention, Figure 2 is a schematic cross-sectional view showing a fibrous activated carbon filter of the water treatment system using a radical oxidation water according to the present invention, Figure 3 A schematic cross-sectional view showing an oxidation catalyst reactor in a water treatment system using radical oxidized water.

As shown in FIGS. 1 to 3, the radical oxidation water generator 110 according to the present invention includes an oxidant storage tank 112 and a fibrous activated carbon filter 114a for storing an oxidant dilution solution in which a certain amount of an oxidizer is dissolved in water. The filtration tank 114 through the filtration tank 114 for filtering the contaminants contained in the oxidant dilution solution introduced from the oxidant reservoir 112 and the catalyst 116a in which the metal 116a-2 is supported on the carrier 116a-1. Oxidizing dilute the oxidant dilution solution from the oxidizing reaction to radical oxidation water (or active oxidizing water: composed of oxidizing intermediates such as OH radicals (or OH.) And OCl ^- HOCl). And an oxidation catalyst reactor 116 to produce a solution containing the species.

In the radical oxidation water generating device 110 configured as described above, the use concentration of the oxidant is suitably 100 to 3000 ppm as the dilution concentration, and the contact speed of the catalyst 116a is suitably 10 to 1000 ml / hr · g-cat. . That is, about 10 to 1000 ml of the oxidant dilution solution passed per gram of catalyst (expressed as g-cat) for one hour shows the most effective result. In addition, when the oxidant dilution solution (the solution in which the oxidant is diluted) is passed through the catalyst 116a, the catalyst temperature is preferably maintained at 50 to 150 占 폚. This is because the rate of generation of radical oxidized water increases when the catalyst temperature is maintained at 50 to 150 ° C.

When the oxidant dilution solution stored in the oxidant reservoir 112 is passed through the filtration tank 114 under the conditions described above, the contaminants contained in the oxidant dilution solution are filtered by the fibrous activated carbon filter 114a on which the metal is supported. Therefore, it can be seen that the role of the fibrous activated carbon filter 114a on which the metal is loaded is configured to minimize contamination of the catalyst 116a.

Fibrous activated carbon filter 114a is a fibrous activated carbon sheet formed in a cylindrical shape in which at least one of silver (Ag), aluminum (Al), iron (Fe), and copper (Cu) metal is supported at a ratio of 0.1 to 10% by weight relative to fibrous activated carbon. A protective wire mesh 114a-2 is formed on each of the inner circumferential surface and the outer circumferential surface of the 114a-1 to maintain the shape of the fibrous activated carbon sheet 114a-1. The oxidant dilution solution introduced into the filtration tank 114 from the oxidant storage tank 112 is introduced into the inner circumferential surface of the fibrous activated carbon filter 114a, and contaminants are filtered by the fibrous activated carbon sheet 114a-1. .

The oxidant dilution solution in which the contaminants are removed through the above-described fibrous activated carbon filter 114a is introduced into the oxidation catalyst reactor 116 and passes through the packed catalyst 116a layer, thereby OH radicals (or OH.), OCl ^- and HOCl.

On the other hand, looking at the configuration of the water treatment system 100 using the radical oxidation water generated through the configuration of the radical oxidation water generating device 110 as described above. First, since the water treatment system 100 according to the present invention is a device using radical oxidized water, the radical oxidized water generator 110 is basically configured.

Therefore, the water treatment system 100 using radical oxidized water according to the present invention is introduced from the oxidant storage tank 112, the oxidant storage tank 112 for storing the oxidant dilution solution dissolved in a dilution concentration of 100 to 3000 ppm in water. In the process of passing the oxidant dilution solution introduced from the filtration tank 114 and the filtration tank 114 installed therein, the fibrous activated carbon filter 114a filtering out contaminants contained in the oxidant dilution solution is oxidized and catalytically reacted. The radical oxidized water and the inflow source water generated from the oxidation catalyst reaction tank 116 and the oxidation catalyst reaction tank 116 filled with the catalyst 116a loaded with the metal 116a-2 on the carrier 116a-1 generated by The electrostatic field changes the physicochemical properties of certain molecules, including water molecules in water, to react radically oxidized water with organic and inorganic pollutants in the incoming water. Comprises the reaction field device 120, the horn corolla 140 for mixing the flocculating agent added means 130 and treated with the injected coagulant to inject the coagulant to be treated processed by the electrostatic field reactor 120. The

In the above-described configuration, the electrostatic field reaction apparatus 120 changes the physicochemical characteristics of specific molecules including water molecules through the electrostatic field by introducing the radical oxidized water and the introduced source water as described in the foregoing description. By reacting the existing pollutants, the electrostatic field reaction device 120 is formed in one lower portion of the inlet 122a, the inlet source and the radical oxidation water inlet is formed in the upper portion of the one side and the outlet for outflow of the treated water after the reaction AC / DC rectifier 124 and electrostatic field reaction tank (122b) is provided in the electroless field reactor 122, electrostatic field reaction tank 122 of the non-conductive material provided to convert the AC voltage into DC voltage and supply ( 122) is composed of an electrode rod 126 for generating an electrostatic field through a DC voltage supplied by one or more installed upright inside.

At this time, the electrostatic field reaction tank 122 is made of any one of a non-conductive polyethylene, polypropylene, high strength polyvinyl resin, polyurethane, aluminum alloy. This is to consider safety because a high voltage is applied to the electrostatic field reactor (122).

The water treatment system 100 using the radical oxidized water according to the present invention configured as described above uses the AC / DC rectifier 124 to the inflow source water and the radical oxidized water introduced into the electrostatic field reactor 122 through the inlet 122a. By applying a DC voltage through the electrostatic field around the electrode 126 to change the physical and chemical properties of the specific molecules, including water molecules in the water to cause the water treatment effect through decomposition or activation of the organic or inorganic material.

The electrode 126 constituting the electrostatic field reaction device 120 may be made of any one material of carbon, aluminum, copper, titanium, and stainless steel, but in the present invention, stainless steel is used as the electrode 126. The coating layer 126-1 coated with polypropylene or polyethylene was further formed on the surface of the electrode 126 so that the life of the electrode 126 could be used semi-permanently.

As described above, after the electrode 126 is formed of a stainless steel material, the polypropylene or polyethylene coating layer 126-1 is formed to increase not only the electric force but also the durability.

In the water treatment system 100 using the radical oxidation water of the present invention, the radical oxidation water input pipe 118 for introducing the radical oxidation water generated through the oxidation catalyst reaction tank 116 into the electrostatic field reaction tank 122 includes an oxidation catalyst reaction tank ( 116 is connected to the inlet 122a side of the electrostatic field reactor 122.

The coagulant input unit 130 is for injecting the coagulant into the primary treated water passing through the electrostatic field reaction tank 122 because the particles passing through the electrostatic field reaction tank 122 can not be agglomerated without 100% coagulant. The coagulant injecting means 130 is composed of a storage tank 132 for storing the coagulant and a coagulant inlet tube 134 for injecting the coagulant stored in the coagulant storage tank 132 to the outlet 122b side of the electrostatic field reaction tank 122.

The mixing tube 140 as the mixing means mixes the first treated water flowing out through the outlet 122b of the electrostatic field reaction tank 122 and the coagulant introduced, and the mixing tube 140 includes the electrostatic field reaction tank 122. The first treatment water flowing out through the outlet 122b of the two pipes separated from a single pipe flows to slow the flow rate, and then is formed into a single pipe structure to be combined again. The mixing tube 140 configured as described above induces instantaneous mixing of the primary treated water and the flocculant without external energy.

Particle collision is essential for growth of the floc, but the mixing tube 140 exhibits an appropriate function to induce the collision effect between particles. The mixing tube 140 splits the passage of the primary treated water passing through the inner tube in which the electric field is distributed in two ways, thereby slowing the flow rate and merging into a single tube to instantly stir the flocculant without stirring.

In addition, the present invention is further provided with a configuration for removing the particles attached to the inner wall of the electrostatic field reaction tank 122 during the electrostatic field reaction, the configuration of the vibrator 150 is installed on the lower portion of the electrostatic field reaction tank 122. The vibrator 150 vibrates the electrostatic field reaction vessel 122 finely to detach particles attached to the inner wall.

In addition, in the present invention, in order to maintain the treatment effect more stably, the treatment by the electrostatic field reaction inside the electrostatic field reaction tank 122 bypasses the primary treated water flowing out through the outlet 122b, thereby increasing the uplifting effect. The configuration of the bypass pipe 160 to be further provided. The bypass pipe 160 bypasses the primary treated water flowing out through the outlet 122b of the electrostatic field reaction tank 122 to the inlet 122a through which the inflowing water flows. At this time, one end of the bypass pipe 160 on the outlet 122b side is connected to the outlet 122b between the electrostatic field reaction tank 122 and the coagulant input pipe 134.

Means for injecting air into the electrostatic field reactor 122 is to inject air into the electrostatic field reactor 122 to promote decomposition of the organic matter, the air injection means is a blower 170 and the air injection pipe It consists of 172. By injecting air into the electrostatic field reactor 122 as described above, oxygen in the air is activated in the electrostatic field reactor 122, and thus, a side effect of increasing the dissolved oxygen concentration in the electrostatic field reactor 122 can be expected. have.

When using the water treatment system 100 according to the present invention as aeration tank pretreatment can greatly increase the microbial growth effect. The water molecules enclose the activated oxygen molecules like chains, increasing the oxygen concentration in the water.

On the other hand, look at the principle of the electrostatic field reaction apparatus according to the present invention. First, the strength of the electric force (the force acting between two charges) generated in the electrostatic field reaction apparatus 120 of the present invention follows Coulomb's law as shown in Equation (1). In other words, when there are two charges, different kinds of charges are attracted, the same kind of repulsive force is applied, and the electric force (F) acting between the two charges is two charges Q ₁ [unit C: charge], Q ₂ [ Proportional to the product of unit C: charge] and inversely proportional to the square of the distance r [unit: m] between the two charges.

Where F is the force (electric force) between the two charges, k is the proportional constant (k = 1 / (4πε), the proportional constant in the vacuum is 9 × 10 ⁹ , r is the distance between the two charges [m], Q ₁ , Q ₂ : charge [C], ε: dielectric constant [F / m], ε = ε ₀ · ε _R (ε ₀ : dielectric constant of vacuum (= 8.855 × 10 ^-12 [F / m]), ε _R : Relative permittivity), N: unit of force (Newtons).

The electric field generated from the electrostatic field reaction apparatus 120 according to the present invention is defined as a space in which an electric force acts. This space is the space through which the incoming water to be treated passes and the diameter of the pipe through which the incoming water passes is in the range of 10 to 500 mm depending on the surface area of the electrode. Accordingly, the electric force generated in the electrode rod 126 of the electrostatic field reaction device 120 is directed from the surface of the electrode rod 126 having a high potential to the wall surface of the low potential electrostatic field reactor 122 in a grounded state. In this case, the tangential direction of the electric force line (an imaginary line indicating the state of the electric field) indicates the direction of the electric field at the contact point.

Meanwhile, the intensity E of the electric field according to the present invention is defined as in Equation 2 below. That is, the strength of the electric field is proportional to the amount of charge and inversely proportional to the square of the distance between charges (V: voltage unit volts). The further away from the surface of the electrode the intensity of the electric field decreases.

When defined as in Equation 2 can be defined as the electric force F = QE (Q: charge, E: the strength of the electric field) acting on the space of the electrostatic field reaction apparatus 120 according to the present invention.

Therefore, in order to control the electric force in the electrostatic field reaction apparatus 120, it is possible to arbitrarily adjust the DC voltage converted from the AC. The electrostatic field reaction device 120 is designed to control an electric force generated in an arbitrary space because an apparatus for converting an AC voltage from a direct current is attached thereto. The voltage V generated by the electrostatic field reaction device 120 is a value defined as in Equation 3 below. In other words, knowing the amount of charge generated (proportional to the surface area of the electrode), the voltage value can be known at a position r from the surface of the electrode.

The voltage of the electrostatic field reaction apparatus 120 derived from Equation 3 is designed to be produced in the range of 10 to 30 kV. The electrostatic field reaction device 120 generates an electric force in the electrode 126, but the farther away from the polar surface, the smaller the energy received by the inflow water, so the electrode 126 has a screw shape (see FIG. 4). High energy from the surface was to be uniformly distributed throughout the influent. By allowing the influent to form a vortex in the passage space, the high energy generated from the electrode surface can be evenly distributed in the influent.

On the other hand, in the electrostatic field reaction apparatus 120 according to the present invention, since charges are generated at the electrode surface, the electron density of the oxygen atom is increased in the case of water molecules, thereby increasing the dipole effect. This means that the water molecules are ionized or activated. As the charge amount increases around the oxygen atom, the dipole moment increases according to Equation 4. A dipole refers to an atom having a pair of charges of + q and -q of the same size and opposite polarity in the dielectric. The polarization phenomenon increases in a molecule. The dipole moment M of the water molecule is defined as in Equation 4.

M = qℓ [C · m]

Where M is the dipole moment [C · m], q is the charge amount [C], and l is the distance interval [m].

Meanwhile, in order to analyze the characteristics of the radical oxidized water generated by the radical oxidized water generator 110, the ionic strength of the water was measured through an electrical conductivity value. The conductivity value is a value that can indirectly express the charge value of the total ionic species in the water. When the water molecules are activated (ionized) or the oxidant is injected from the outside, the conductivity value increases, so the ionic strength of the influent, radical oxidized water (activated oxidized water), and final effluent water was analyzed by means of electrical conductivity. .

According to the process test method (paragraph 38), a certain sample was taken to measure the electrical conductivity of each sample, and the analysis device was an electrical conductivity analyzer (model CM-40G). In order to reduce the error, the water temperature was compared with each other in terms of the value at 25 ℃.

sample Electrical conductivity Remarks Influent 2.1 x 10 ³ mm / cm Influent Form pH = 7.8COD = 35mg / l2. For each sample, the value was calculated by averaging three times. Oxidation solution (NaCl 250 ppm) 2.3 × 10 ⁴ mm / cm Radical Oxidized Water (Solution Passed through Oxidation Catalyst Layer) 9.5 x 10 ⁴ mm / cm Effluent from the Electrostatic Field Reactor 5.7 x 10 ⁵ mm / cm

As shown in Table 1, the electrical conductivity value of influent is 2.1 × 10 ³ ㎲ / cm is analyzed because organic matter is dissolved in water in ionic state. In addition, there are oxidizing solution can be seen that the conductivity value when passing through the oxidation catalyst (solid phase) increases this as degradation NaClO one input to the oxidant OH · (radical), O ^* (excited), OCl ^-, HOCl, This is because a chemical intermediate species such as Cl ^{− is} formed to activate the entire solution including water molecules. When the radical oxidized water (active oxidized water) passing through the oxidation catalyst passes through the electrostatic field reaction device 120, the conductivity value of the effluent is significantly increased, which activates the chemical intermediate species of the water molecule and the injected radical oxidized water. It is because it accelerated.

Radical generation principle in the water treatment as described above is mainly used in the fenton oxidation method. This principle uses the Fenton oxidation method (liquid phase reaction) to remove high concentrations of organic matter in the treatment of leachate. When hydrogen peroxide is injected in the presence of sulfuric acid and iron ions (Fe ²⁺ ), OH · (radical) is produced. At this time, the generated radicals are effectively used for organic matter decomposition.

In general, the radical generating reaction generates OH radicals by injecting a certain amount of H ₂ O _{2 in the} presence of UV or iron catalyst in solution. Since it reacts in solution, iron catalyst is consumed after treatment, and it can be said to be uneconomical because the pH must be adjusted in the range of 3-4. The radicals oxidize the hardly degradable organic compounds at high rates so that the hardly decomposable organic compounds can be easily removed. Organic decomposition using hydrogen peroxide (H ₂ O ₂ ) and UV is pointed out that the generation rate of OH radicals is too slow and the contact reaction is also low processing efficiency.

There are various oxidation methods to induce the production of OH, such as UV / ozone, UV / hydrogen peroxide, UV / hydrogen peroxide, ozone. In general, when no catalyst is used, the production of OH radicals generated is slow and the amount of OH generated is low. In the water treatment system 100 according to the present invention, the generation of one-stage radicals occurs in the oxidation catalyst layer by supporting various metals on a carrier, and the decomposition of organic substances or the excitation state as the generation of radicals in a strong electric field is further promoted. ) Can be easily induced.

Hydroxide (OH) radicals can decompose C-H bonds of organic pollutants. When hydrogen peroxide is used as an oxidizing agent, the generation mechanism of OH radicals is as follows. Where S means a carrier. The metal iron, chromium, and manganese supported on the carrier are catalyzed, and the reaction proceeds as follows on the ferrous metal.

_{^{S-Fe 2+ + H 2 O}} 2 = S-Fe 3+ + OH · + OH -

Once formed, radicals induce electron movement in the molecule. The excited molecule or radical has the characteristic of producing various products by reacting with itself or other molecules. The radical oxidized water generated during the reaction is very reactive to decompose organic matter. For example, when methanol molecules are included in the influent, the reaction with the OH radical may proceed as follows. In other words, methanol molecules react with OH radicals to cause decomposition.

CH ₃ OH (Methanol _{molecules) + OH · → CO 2 ↑} ( diffusion into the atmosphere) + OH ^-

Specifically, the decomposition mechanism of the organic substance and OH radical is described in detail as follows. In other words, when an organic molecule absorbs the energy of OH radicals, the organic material is primarily in an excited state, and the bond between carbon and hydrogen in the energized methanol molecule is broken (molecule transfer occurs between molecules). Methanol decomposes because it breaks down to produce carbon dioxide (OH radicals transfer electron energy to organics, eventually producing carbon dioxide). Any other organic material induces a decomposition reaction of the organic material on a similar principle. In particular, the radical generation reaction exhibits excellent performance in killing microorganisms or the like of decomposition reactions of hardly decomposable organic substances.

On the other hand, in the electrostatic field, the organic matter is excited, so that the C-H bond of the organic material is easily broken by receiving electrostatic energy. The OH radicals introduced into the electrostatic field are further activated, so that the reaction with the organic material is rapidly acted to accelerate the decomposition reaction. The decomposition of organic matter in the electrostatic field is as follows.

O + EF → [O ^* ] + OH

Here, O stands for Organics, and EF stands for Electrostatic Force. [O ^* ] provides an opportunity for the organic molecules to be activated and the bonds of CH can be easily broken. That is, organic matter injected into the electrostatic field may be converted into an activated state [O ^* ], which is a fragile form, to promote decomposition of the organic material.

On the other hand, as described above, the water treatment system 100 according to the present invention generates radical oxidized water (active oxidized water) to remove organic-inorganic contaminants in the water treatment process, in an electrostatic field to promote radical oxidation reactions. The means were configured to allow the reaction to take place. In the present invention, the radical oxidized water refers to a solution composed of intermediate oxidative species such as OH radical (or OH ·), OCl ⁻ , HOCl, and further generates a concentration of intermediate species having excellent oxidation ability in the electrostatic field reaction apparatus. By decomposing or activating organic or inorganic substances, it is possible to exert a function of reducing COD (chemical oxygen demand) during water treatment. In the case of inorganic materials, the surface of the particles changes its surface properties when subjected to electrostatic forces.

In addition, the water treatment system 100 according to the present invention is a technique for maximizing the treatment effect of the organic-inorganic contaminants by injecting the radical oxidation water into the electrostatic field. When activated through an electrostatic field reaction apparatus under the injection of radical oxidized water, it is possible to prevent the formation of scale due to the activation of water molecules as well as organic matter. More specifically, when the raw water is placed in a strong magnetic field, water molecules or organic inorganic molecules contained in the water are activated. Theoretically, water molecules are originally hydrogen-bonded, and several water molecules exist in the form of chains entangled in chain form. However, when strong energy is received from the outside, the water molecules are excited, causing scale components to sink from the wall of the pipeline or The solubility of the calcium carbonate contained is reduced to induce deposition on the conduit walls. That is, the calcium carbonate contained in the water is affected by radical oxidized water and electrostatic energy, so that the solubility decreases and deposition is suppressed, and the scale deposited on the wall precipitates calcium carbonate due to the dipole effect of excited water molecules. It is detached underwater.

On the other hand, when algae appear in the river, chlorine or copper sulfate is usually used. Their use is inefficient because of side effects and limitations. In particular, the emergence of algae has a huge impact on flocculation, so the biggest difficulty in water treatment plants today is to solve the alga problem. The water treatment system 100 according to the present invention can solve this problem. Since radical oxidized water has a function of serially generating high-energy intermediate species in an electrostatic field reaction device, it is possible to kill or partially decompose organic matters, such as COD-inducing substances, bacteria, and algae. The water treatment system 100 according to the present invention can be efficiently applied to a treatment or a swimming pool.

As described above, the water treatment system 100 according to the present invention primarily produces radically oxidized water using the metal-supported catalyst 116a, and continuously enters the electrostatic field reaction apparatus 120 to enter water in the water. Changes in physicochemical properties of certain molecules, including molecules, cause degradation, activation, and aggregation.

Passing the radical oxidation water into the electrostatic field reaction apparatus 120 while introducing raw water including organic matter forms a synergistic effect to promote decomposition reaction of organic matter or to separate organic matter from water, thereby reducing the amount of flocculant added. In addition, as well as preventing the scale of the inner wall of the pipeline, there is also a function to remove the scale formed on the wall of the pipeline. The electric field induced from the stainless steel electrode rod 126 may promote ionization of water to separate particles, organic matters, and the like from raw water.

The theoretical explanation for the prevention of scale by electrostatic field and radical oxidation water is as follows. Electron energy is supplied from the electrostatic field and radical oxidized water to activate the thermal movement of water molecules. The water molecules surrounding the Ca ²⁺ ions and the CO ₃ ^2- ions enter the excited state and dissociate from the surroundings of the calcium ions, eventually causing a decrease in the solubility of the calcium carbonate. In other words, the calcium ion concentration decreases due to the activation of water molecules. Decreasing the concentration of calcium ions means that the concentration of calcium ions which leads to scale formation is reduced, and as a result, scale formation is suppressed under the influence of electrostatic field and radical oxidized water. In addition, the existing scale is eluted to maintain the equilibrium state in the liquid and crystallized under the influence of the excited water molecules. The theoretical phenomenon is shown in the figure below.

In addition, when the water treatment system 100 according to the present invention is applied, the scales already formed on the inner wall of the pipe are also precipitated due to the dipole phenomenon of the excited water molecules (denoted by H ₂ O ^* ). The scale can be reduced gradually.

In addition, when the pool or purified water is continuously passed through the water treatment system 100 of the present invention, the bacteria contained in the water are killed by the synergistic effect of the radical oxidation water and the electrostatic energy. In particular, when the algae flows into the summer, using the water treatment system 100 according to the present invention as a pretreatment step can kill the algae. Conventionally, when water is collected and treated with river water, when algae occurs, chlorine is added to the pretreatment stage, and then coagulated. If a large amount of chlorine is added, organic substances contained in water react with chlorine as a side effect. Phosphorus THM (trihalo methane) may cause harmful, as well as increase the pH, so the aggregation effect is greatly reduced. The water treatment system 100 according to the present invention can significantly solve the problems mentioned.

The water treatment system 100 according to the present invention not only decomposes organic matter contained in raw water, but also significantly reduces the amount of flocculant used in the water treatment to about 50 to 90%, and also greatly reduces the amount of sludge generated after the water treatment.

Moreover, the water treatment system 100 according to the present invention can be effectively used to treat raw water including organic matter and suspended matter (particulate matter). In general, when a particulate material is introduced, a flocculant is used. Organic matter has a spatial hinderance of aggregation. In other words, by reducing the force of attraction between particles, organic matters interfere with aggregation. When the water treatment system 100 according to the present invention is used, the particulate matter is sufficiently influenced by the electrostatic field and thus the coagulation effect is due to the decomposition of the organic matter, which is an interference substance of aggregation, through the chain reaction in the electrostatic field reaction apparatus 120. Is exerted to the maximum, and thus the flocculation effect is excellently increased.

The principle of aggregation is to lower the negative zeta potential (mV) from the surface of the suspended solids to near zero to induce attractive inter-surface. The charged materials repel each other, so no agglomeration or coagulation of the particles occurs. However, when the + metal is added from the outside, the neutralization of the particle surface occurs and the zeta potential is reduced. This is the principle of agglomeration. The most commonly used metal coagulant in our country uses aluminum salt and iron salt.

In the case of electrocoagulation, there is a limitation of the pole pollution and the metal dissolution concentration, there is a disadvantage that dissolves faster than Fe when using an Al electrode, and there is a disadvantage in that flocs are floated due to hydrogen generated at the pole. When Al ³⁺ or Fe ³⁺ ions are dissolved from the + electrode, proper agitation is required. In the case of using the electrooxidation method, there is a disadvantage in that the reaction rate is slow and the device is complicated and economical is lacking. For this reason, the electrooxidation method is not in the commercialization stage in Korea.

In consideration of this technical problem, in the present invention, after dissolving an oxidant to a certain concentration in water and generating the radical oxidized water through the metal oxide-supported catalyst 116a, the electrostatic field reaction device 120 It is injected into the interior to effectively decompose the organic matter already activated in the electrostatic field reactor 122. In the strong electrostatic field reaction apparatus 120, the organic material is activated and can be easily decomposed by reaction with radical oxidized water.

When the electrostatic force is generated in the range of 5000 to 100,000V of the voltage induced in the stainless steel electrode 126, the inorganic particles in the water can use strong electrostatic energy, so that the surface area of the particles is physically changed and the floc Will form. Originally, the role of flocculant has a function of neutralizing the surface properties of the suspended particles that are charged when Al ³⁺ ions or Fe ³⁺ ions enter the influent. For example, the aggregation mechanism in water of Al ³⁺ ions, which is the aggregation component of alumina sulfate, is as follows.

-Al ³⁺ + Organics (organic substance) → Al-organics (precipitated by complex compound formation)

-Al ³⁺ + Particles (floating material) → Al-particles (sedimentation)

Al ³⁺ + 3H ₂ O → Al (OH) ₃ + Particles or Organics → Al (OH) ₃ -particles-organics

Therefore, the generation of sludge after water treatment is essential. One of the effects of the technique according to the invention is to reduce this sludge generation. In order to minimize the amount of flocculant used, the surface properties of the particles should be changed, and more specifically, the zeta potential of the particles should be reduced to reduce the double layer thickness of the particles. The electric double layer is an area that electrically affects the surface particles. The existing method of reducing the zeta potential of the particles adds a metal with a positive charge, but this is based on the premise of the sludge, which is economically expensive. Since 2002, since the landfilling of sludge is not allowed, a treatment method for reducing the sludge has been devised.

Summarizing the function of the water treatment system 100 according to the present invention by crystallizing the alkaline components in the water by the decomposition function of organic matter, the separation function of water and organic matter, side effects in the electrostatic field reaction apparatus 120 of radical oxidation water It can function to suppress scale formation of the inner wall of bureaucracy, to electrically change the surface of suspended particles in water, to induce flocculation effect without adding flocculant, and to kill algae or bacteria in water.

In addition, there is an effect of greatly increasing the growth function when the plant or animal using the activated water passed through the water treatment system 100 according to the present invention. That is, using the water treatment system 100 according to the present invention finely breaks down the alkaline component to be absorbed by animals or plants.

On the other hand, the water treatment system 100 according to the present invention can be applied to wastewater containing organic substances and suspended solids (mineral). For example, in the case of wastewater containing paint components, solid components, solvents, and water, when the radical oxidized water flows into the electrostatic field reactor 120 and passes through the tube, the paint components and the solid components are separated from each other. Occurs because water molecules are strongly induced by ionization. In other words, separation occurs because of the mutual affinity between molecules of the same kind rather than heterogeneous.

In general, in order to treat wastewater flowing out of the water wash paint booth, an inorganic coagulant and an organic coagulant are used in parallel. However, in the case of using the water treatment system 100 of the present invention, agglomeration may occur without the use of a water treatment agent to generate affinity between the particles, thereby causing flocculation and flocculation. In addition to reducing chemical costs, the cost of sludge treatment is greatly reduced.

The water treatment system 100 according to the present invention can be effectively used to prevent scale since radical oxidation water can exert a function of strongly killing organic matter. With the formation of scales, the growth of microorganisms, which are organic substances, usually occurs, and since the electric field alone cannot completely kill such microorganisms, radical oxidized water has a great effect on killing such microorganisms.

The particles that make up the scale are usually magnesium or calcium and their presence in water is important. Increasing the alkali concentration (in mg / l in water) in water can cause scale to pass through the tube and cause wall scaling. On the contrary, when water with low alkalinity (commonly called corrosive water) passes through the inside of the pipe, scale components formed on the inner wall may detach or dissolve into the pipe. For this reason, the concentration of alkali components in the water is treated as an important indicator when passing water inside the pipe to be used. Assuming that the water treatment system 100 according to the present invention is used for the scale prevention, it is possible to prevent the scale that can be generated in advance, and to induce the detachment of the scale component already formed in the inner wall of the pipeline.

The device according to the invention can kill bacteria or algae contained in water. The apparatus of the present invention can be used for treatment of swimming pools or simple water treatment plants. If killing algae with chlorine (killing) may cause harmful substances in the process of decomposition, but when using the water treatment system 100 according to the present invention can overcome such problems.

In addition, the water treatment system 100 according to the present invention can be used to increase the efficiency of the oil fuel in addition to activating the substances present in the water basically when passing through the inner tube formed electric field. That is, in the case of automobiles or oil boilers using diesel, the water treatment system 100 may be used in different sizes and shapes.

Assuming that the water treatment system 100 according to the present invention is attached to the apparatus using diesel oil as a pretreatment system, the organic components constituting the diesel oil are activated to increase the reactivity with oxygen in the air to induce complete combustion. It is. That is, the hydrogen atoms of the molecules constituting the diesel fuel are brought into an exciting state, thereby increasing the reaction efficiency with oxygen in the air, thereby reducing the carbon monoxide emission. As well as solving environmental problems, there are advantages to save energy.

The radical oxidized water is formed in the oxidation catalyst generating device 110 and is injected into the electrostatic field reaction device 120 together with the raw water inflow. The raw water and the radical oxidized water to be treated are reacted while passing between the stainless steel electrode 126 and the electrostatic field formed in the side space of the electrostatic field reactor 122.

Oxidizing agents used in the radical oxidation water generator 110 for generating radical oxidized water include hypochlorous acid (NaClO), stabilized chlorine dioxide (NaClO ₂ ), sodium chlorate (NaClO ₃ ), hydrogen peroxide (H ₂ O ₂ ), and ozone (O ₃ ), one or two or more of chlorine dioxide (ClO ₂ ) can be used in combination. The injection concentration of radical oxidized water relative to the influent depends on the type and concentration of organic matter contained in the water and 0.01 to 30% by volume is appropriate.

In the radical oxidation water and the electrostatic field reaction apparatus 120, the reaction residence time is flexible according to the concentration, type, and treatment target water quality of the organic matter in the influent water, and the reaction residence time is several hours at the concentration of 500 to 1000 mg / l based on COD. Is enough. However, when the water treatment system 100 is used only for the purpose of scale prevention or aggregation, the residence time of the electrostatic field reaction tank 122 of the raw water is sufficient to be within a few seconds.

4 is a schematic cross-sectional view of a second embodiment showing an electric field reaction tank of a water treatment system using radical oxidized water according to the present invention, and FIG. 5 is a cross section of a third embodiment showing an electric field reaction tank of a water treatment system using a radical oxidation water according to the present invention. Schematic diagram.

1 and 4 is a typical device having a residence time of the raw water within a few seconds is an electrostatic field reaction device 120 is mainly used for the purpose of removing the solute, preventing the scale, killing the microorganisms or bacteria of low concentration. As the stainless steel electrodes 126 and 126a, the standard type of FIG. 1 and the screw type of FIG. 4 can be used. Of course, the stainless steel electrode 126a of FIG. 4 also has a coating layer 126a-1 coated with polypropylene or polyethylene on its surface.

However, when a high concentration of organic matter is contained in the water to be decomposed organic matter in the water treatment system 100 of the present invention should be maintained for at least 5 minutes. Appropriate device is installed at least one stainless steel electrode (226, 226a) at the bottom of the electrostatic field reaction tank 222, as shown in Figure 5, the stirrer 228 is attached to the upper side contaminants react electrostatic field reaction It is designed to maintain the residence time in the device 220 for at least one hour. Electrostatic field reaction apparatus 220 having such a structure is suitable for wastewater treatment containing a large amount of hardly decomposable organic matter. Of course, the stainless steel electrodes 226 and 226a of FIG. 5 are also formed with coating layers 226-1 and 226a-1 coated with polypropylene or polyethylene.

When radical oxidized water flows into the electrostatic field reaction device 120, it receives strong energy to promote a reaction rate between organic substances and radical oxidized water contained in the water. In the case of influent with organic matter, the decomposition rate of organic matter can be greatly increased. In order to increase the decomposition rate of organic matter, the water treatment system 100 of the present invention injects a certain amount of air from the outside.

The catalyst 116a used in the present invention is supported on a carrier as an oxide catalyst. Examples of the carrier include silica-alumina, alumina, silica, zeolite, clay, celite, ceramic honeycomb, and perlite. The carrier may be in the form of a circle, amorphous granules, or cylinders. It may be used in various ways, and the pressure due to the catalyst layer should be minimized. As the supported metal, one or more of chromium, iron, manganese, cobalt, titanium, tungsten, platinum, and copper are supported at a certain concentration and used as a catalyst.

In the metal supporting method, first, a carrier is added in a state of dissolving a metal compound to be supported in a certain aqueous solution, stirred for 30 to 40 minutes, then dried at 90 to 100 ° C. for 3 hours, and then air is again 40 ml / min. It is baked at 450 ° C. for about 3 hours while flowing at a rate. It is then cooled to room temperature and used as catalyst 116a. Meanwhile, in order to minimize contamination of the catalyst 116a, metal-supported activated carbon was used as the filter 114a in the first half of the oxidation catalyst reactor 116 to maintain the active time of the catalyst 116a for a long time.

When the inflowing water flows in the range of 0.5 to 10 m / s through a 60 to 100 mm diameter pipe, the suspended particles or organic matter in the water together with the radical oxidation water flow along the side from the bottom inside the electrostatic field reactor 122 formed in the strong electric field. As they pass by, organic matters decompose or activate, and the suspended particles that pass through the electric field lose their charge and organic matters decompose. In the case of particles, when the -charge of the particle surface moves to the + pole, the -charge is lost, and the zeta potential of the particle surface is reduced, and the attraction between the particles acts to form a floc. Raw water, including bacteria and algae, can kill bacteria or algae under the influence of powerful electric fields and radical oxidized water, which can be used in swimming pools.

The particle removal phenomenon is described in more detail as follows. When the particle surface loses charge or neutralizes, agglomeration generally occurs because the zeta potential of the particle surface is reduced, and the repulsive force between particles decreases, resulting in mutual attraction and particle entanglement. This effect is generally the same as the case of adding a flocculant in the water treatment, the physical surface structure is changed. Initially, when a particle is placed in an electric field, the particle surface is strongly charged to-under the influence of ions and electrons. -The charged ions between the electrons generate repulsion, but no flocculation effect can form flocs. The induced -charged particles move at a very high speed to the side of the electrostatic field reactor 122 made of polypropylene, which is a positive pole, and then the surface of the particles is neutralized while losing the charge on the wall. This is induced, and this force causes floc formation. If the charge on the particle surface is lost and neutralized, van der Waals forces act on the particles, and the force of attraction between the particles acts.

On the other hand, when the particles pass through the electrostatic field reactor 120 can be attached to the wall while losing the particles from the wall of the electrostatic field reactor 122, in the present invention, by attaching the vibrator 150, the particles can easily go out along the effluent It is designed to be.

[Example 1]

The following is a comparison between the case of installing the water treatment system 100 according to the present invention and the case of not installing. As shown in Table 2, it can be seen that the amount of flocculant used is significantly reduced, and the amount of sludge produced is reduced by 30%. The amount of sludge produced is measured by using Imhoff Cone. In the conventional treatment method, more sludge is discharged due to the production of Al (OH) ₃ or Fe (OH) ₃ due to the sludge generated from the coagulant input. The oxidizing agent was NaClO, the dilution concentration was 100ppm, the catalytic contact rate was 70 ml / hr.g-cat, the carrier was celite, the supported metal was 0.2 wt% of platinum, iron, cobalt and chromium, respectively. Titanium was supported by 0.5% by weight relative to the carrier, respectively. The reaction contact time in the electrostatic field reaction device 120 of the inflowed water was maintained in the range of 3 to 5 seconds.

division Amount of coagulant Water quality and sludge after treatment ※ Turbidity (NTU) Alkalinity (mg / ℓ) Sludge Produced (ml / l) Not installed (only flocculation) 75 ppm 5 33 17.5 Apparatus according to the present invention (oxidation solution injection concentration = 1% by volume of raw water) 5 ppm 2 38 11.1

* Raw water condition: Turbidity 150 NTU (NTU: Turbidity Unit), pH = 8.5, alkalinity 40mg / ℓ

* Coagulant polyaluminum chloride (PAC: Poly Aluminum Chloride, Al ₂ O ₃ 10%)

* Results in Table 2 are three average experiments

[Example 2]

Table 3 shows the results for wastewater treatment containing large amounts of organics. It can be seen that the turbidity removal amount is excellent numerically when using the water treatment system 100 according to the present invention despite the lower amount of flocculant as shown in Table 3. The removal effect of COD (chemical oxygen demand) is good when the concentration of oxidant is high. In addition, the sludge reduction effect was also better when the concentration of oxidant 3% than when 1%. When the concentration of the oxidizing solution is 3% by volume and the COD removal effect is determined based on whether or not the oxidizing catalyst passes through the oxidizing catalyst layer, it can be seen that there is a big difference in Table 3. From this fact it can be seen indirectly that radical oxidized water has a great influence on organic matter removal. After flocculation, the sludge was analyzed by Imhoff Cone. The oxidizing agent used NaClO and NaClO ₂ at 50:50, the dilution concentration (diluent dilute solution) was 250 ppm, the catalyst contact rate was 150 ml / hr · g-cat, the carrier was silica-alumina, and the supported metal was platinum. 0.2 wt% of iron, cobalt, manganese, and chromium, respectively, and 0.5 wt% of titanium and tungsten, respectively. The reaction contact time of inflow water from the electrostatic field reaction device 120 was set to 15 minutes, and the input time of the coagulant was compared by adding a coagulant to the treated water passing through the electrostatic field reaction device 120.

division Input coagulant After processing ※ Turbidity (NTU) Alkalinity (mg / ℓ) COD (mg / l) Sludge Produced (mg / ℓ) Not installed (simple agglomeration treatment) 65 ppm 18 35 75 35 System according to the present invention * (oxidation solution injection concentration = 3% by volume of raw water) 18 ppm 2 39 15 11 Apparatus according to the present invention ※※ (Oxidation solution injection concentration = 3% by volume of raw water) 18 ppm 6 39 29 13 Apparatus according to the present invention * (oxidation solution injection concentration = 1% by volume of raw water) 25 ppm 7 40 23 15

* Raw water condition: Turbidity = 155 NTU, COD = 185 mg / l Alkaline = 45 mg / l

* Coagulant: PAC (polyaluminum chloride, Al ₂ O ₃ concentration: 10%)

* ※: In case of injecting radical oxidized water generated through the oxidation catalyst layer

* ※※: When oxidizing solution is simply injected without passing through the oxidizing catalyst layer

* Results in Table 3 are three times the average

[Example 3]

Table 4 shows the degree of killing of microorganisms using the water treatment system 100 according to the present invention for the water used in the swimming pool. As shown in Table 4, the effect is excellent. The oxidizing agent was NaClO ₂ , the dilution concentration (oxidizing solution) was 200ppm, the catalyst contact speed was 120 ml / hr · g-cat, and the carrier was ferrite, the supported metal was platinum, iron, cobalt, and chromium, respectively. 0.2% by weight, titanium and tungsten were respectively supported by 0.5% by weight relative to the carrier. The reaction contact time of the inflowing water in the electrostatic field reaction device 120 was maintained at 3 to 4 seconds.

division Microorganism Types Microbe before treatment (in 250 ml) Microbe after treatment (in 250 ml) Apparatus according to the present invention (oxidation solution injection concentration = 2.5% by volume) Coliform group detection Not detected Bunwonseong chain group detection Not detected Pseudomonas aeruginosa detection Not detected

[Example 4]

6A and 6B show photographs of the scale phenomenon of the inner wall of the pipe before and after installation of the apparatus according to the present invention in a boiler water pipe. In the case of Figure 6a it can be seen that the scale is formed on the inner wall of the pipeline in the state before the installation of the water treatment system 100 using the radical oxidation water according to the present invention. On the other hand, Figure 6b is a picture three months after the installation of the water treatment system 100 using the radical oxidation water according to the present invention. From this fact, it can be seen that after installing the water treatment system 100 using the radical oxidation water according to the present invention, not only the scale of the inner wall of the pipeline is suppressed but also the existing scale gradually decreases.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

As described above, according to the present invention, a certain concentration of the oxidant solution is passed through the oxidation catalyst layer to induce the generation of radical oxidized water, thereby exerting an excellent performance in decomposing the organic and inorganic substances contained in the water and activating specific molecules. .

When the radical oxidized water generated by the radical oxidized water generating device is reacted in an electrostatic field reactor, the effect of decomposing organic matters is notably increased, and the surface physical properties of the particles are changed to cause agglomeration, thereby greatly reducing the amount of flocculant added. . Radical oxidized water can readily decompose activated organic matter in the space of a strong electrostatic field reactor.

Another effect of the present invention is that in the case of wastewater containing particles of high concentration, due to the modification of surface properties, the physical coagulation reaction is caused by itself, thereby reducing the coagulant input amount by 50 to 90%. The activation of water molecules induces the separation effect of organic molecules and particles, which leads to an increase in organic decomposition and aggregation.

Another effect of the present invention is that the purified water gradually forms the scale after passing through the pipeline, and passing through the water treatment system of the present invention increases the ionization tendency of the water molecules due to the synergistic effect of the radical oxidation water and the electrostatic field to form a scale The effect of suppressing the deposition of pipeline walls of an alkaline component calcium carbonate is exhibited.

In addition, according to the present invention, when a pool or purified water passes through a strong electric field reaction device, bacteria contained in the water are killed by the effects of radical oxidation water and electrostatic energy. In particular, when the algae is introduced into the summer season, when the water treatment system according to the present invention is used as the pretreatment system, the algae is killed and the water treatment can be effectively performed.

Moreover, when the activated water passed through the water treatment system according to the present invention is used in plants or animals, the water absorption rate is increased, thereby greatly increasing the growth function. In other words, the water treatment system according to the present invention has a function of crushing the alkaline component finely for absorption by animals or plants. In addition, when the diesel fuel component is passed through the water treatment system of the present invention while maintaining the radical oxidation water at 10 ppm or less, the diesel fuel component is activated to increase the combustion rate by 20% or more.

As described above, the technology according to the present invention is capable of decomposing or activating organic matter contained in water, electrically changing the surface of suspended particles in water, causing a flocculation effect without adding a flocculant, and detecting algae or bacteria in water. It can exert a function to kill, and the alkali component is crystallized through the dipole effect of additionally activated water molecules to exert a function of suppressing scale formation.

Claims (19)

An oxidant storage tank for storing an oxidant dilution solution in which an oxidant is dissolved in water at a dilution concentration of 100 to 3000 ppm; A filtration tank for filtering foreign substances by passing a predetermined concentration of the oxidant diluent solution introduced from the oxidant storage tank; A fibrous activated carbon filter installed inside the filtration tank to filter contaminants contained in the oxidant dilution solution introduced from the oxidant storage tank; An oxidation catalyst reaction tank for oxidizing and reacting the oxidant dilution solution introduced through the filter tank; And Radical oxidation water generating device comprising a catalyst on which a metal is supported on a carrier to generate the radical oxidation water in the process of passing the oxidant dilution solution filled by the protective wire mesh in the oxidation catalyst reaction tank. The method of claim 1, wherein the oxidizing agent is hypochlorous acid (NaClO), stabilized chlorine dioxide (NaClO ₂ ), sodium chlorate (NaClO ₃ ), hydrogen peroxide (H ₂ O ₂ ), ozone (O ₃ ), chlorine dioxide (ClO ₂ ), Chlorine (Cl ₂ ) to the radical oxidation water generator, characterized in that used alone or in combination of two or more. The fibrous activated carbon filter of claim 1, wherein the fibrous activated carbon filter is supported on at least one of silver (Ag), aluminum (Al), iron (Fe), and copper (Cu) metal in a ratio of 0.1 to 10% by weight relative to fibrous activated carbon. A protective wire mesh is formed on each of the cylindrical inner circumferential surface and the outer circumferential surface of the sheet to maintain the shape of the fibrous activated carbon sheet. [Claim 2] The carrier constituting the catalyst according to claim 1, wherein at least one carrier of silica-alumina, alumina, zeolite, silica, diatomaceous earth, celite, perlite, ceramic honeycomb is used, and the supported metal is chromium, iron, titanium. And tungsten, cobalt, nickel, copper, manganese, platinum, zirconium, at least one of which is supported by 0.1 to 15% by weight relative to the carrier. The contact rate between the oxidant dilution solution and the catalyst is set at 10 to 1000 ml / hr · g-cat per gram of the catalyst, and when the oxidant dilution solution is passed. A radical oxidation water generating device, characterized in that the catalyst temperature is set to 50 ~ 150 ℃. At least one of silver (Ag), aluminum (Al), iron (Fe) and copper (Cu) metal is dissolved in an oxidizing agent dilution solution in which the oxidizing agent is dissolved in water at a dilution concentration of 100 to 3000 ppm in a ratio of 0.1 to 10% by weight. After filtering the contaminants through the supported fibrous activated carbon filter, chromium, iron, titanium, tungsten, cobalt, Radical oxidation water produced by passing at least one of nickel, copper, manganese, platinum and zirconium metal through a catalyst supported in the range of 0.1 to 15% by weight. An oxidant storage tank for storing an oxidant dilution solution in which an oxidant is dissolved in water at a dilution concentration of 100 to 3000 ppm; A filtration tank in which a fibrous activated carbon filter for filtering contaminants contained in the oxidant dilution solution introduced from the oxidant storage tank is installed therein; An oxidation catalyst reaction tank in which a metal-supported catalyst is filled in a carrier for producing an oxidizing agent-dilution solution by oxidizing-catalyzing the oxidizing agent-diluting solution to generate radical oxidation water in the course of passing the oxidant dilution solution introduced from the filtration tank; The radical oxidized water and the introduced source water generated from the oxidation catalyst reactor change the physicochemical characteristics of specific molecules including water molecules in the water through the electrostatic field to react the organic oxidative pollutants in the radical oxidized water and the introduced source water. Electrostatic field reaction apparatus; Coagulant injecting means for injecting a coagulant into the treated water treated by the electrostatic field reaction apparatus; And And a means for mixing the treated water and the flocculant introduced therein. The method of claim 7, wherein the electrostatic field reaction device is formed of a non-conductive material having an inlet formed in one lower portion of the inlet source and the radical oxidation water inlet and an outlet formed in one upper portion of the outlet for outflow of the treated water after the reaction Electrostatic field reactor; An AC / DC rectifier installed in the electrostatic field reactor and converting and supplying an AC voltage to a DC voltage; And The water treatment system using radical oxidized water, characterized in that the electrode rod for generating an electrostatic field through a DC voltage supplied is installed at least one upright inside the electrostatic field reactor. The water treatment system using radical oxidized water according to claim 8, wherein the electrostatic field reaction tank is made of one of polyethylene, polypropylene, high strength polyvinyl resin, polyurethane, and aluminum alloy. The water treatment system according to claim 8, wherein the electrode is made of any one material of carbon, aluminum, copper, titanium, and stainless steel. The water treatment system of claim 10, wherein a coating layer coated with polypropylene or polyethylene is further formed on a surface of the electrode. 12. The water treatment system of claim 11, wherein the electrode comprises a single structure having a straight shape which is erected downwardly from an upper portion inside the electrostatic field reactor. 12. The water treatment system according to claim 11, wherein the electrode has a single structure in the form of a screw erected downwardly from an upper portion inside the electrostatic field reactor. 12. The water treatment system according to claim 11, wherein two electrode rods are installed in an upright position from a lower portion inside the electrostatic field reactor. 15. The water treatment system according to claim 14, wherein an agitator is further disposed between the two electrode rods to stir the inflow water and the radical oxidation water in the electrostatic field reaction tank. According to claim 7, wherein the mixing means flows the first treatment water flowing through the electrostatic field reaction device in a two-pronged tube to slow the flow rate, and then formed into a single tube structure to be merged again to form an external energy Water treatment system using radical oxidized water, characterized in that it is possible to induce instantaneous mixing of the primary treated water and flocculant. 17. The water treatment system according to any one of claims 7 to 16, further comprising means for injecting air into the electrostatic field reaction tank. 18. The water treatment system according to claim 17, further comprising a vibrator for finely vibrating the electrostatic field reaction tank to detach particles attached to the inner wall. 19. The water treatment method according to claim 18, further comprising a bypass tube configured to bypass the first treated water treated in the electrostatic field reaction tank and discharged through the outlet to the inlet of the electrostatic field reaction tank. system.