KR200307692Y1 - Functional drinking water supply apparatus for Indoor electrolytic treatment of microorganism contaminated - Google Patents

Abstract

The present invention is an easy and safe sterilization of tap water or groundwater contaminated with microorganisms and restores to drinking water, and relates to a weakly alkaline dissolved oxygen-containing drinking water treatment device. The catalytic oxide electrode is stacked in the form of an electrode by using a holder having a series of finely spaced grooves, without using an ion exchange membrane, a spacer in the form of a gasket to maintain the electrode gap, and bolts and nuts. This makes it easy to mount and detach the electrode, and this structure lowers the solution resistance between the electrodes, so that it can be operated under low electrolytic voltage without supplying an electrolyte such as sodium chloride when treating tap water and groundwater contaminated with microorganisms. Generated during electrolytic treatment and electrolytic reactions using the same The present invention provides an electrolytic treatment apparatus for producing potable sterilized water having an exhaust structure for safely treating oxygen and hydrogen.

The present invention for achieving the above object is an electrolytic reactor (10) having a groove of fine intervals in a stacked electrode body structure, a storage unit 20 for storing the sterilized drinking water in the electrolytic reactor (10), and the electrolytic reactor And an exhaust unit 30 for preventing the accumulation of electrolytic reaction gas generated at 10, and a control unit 40 for supplying power to the electrolytic reactor 20, controlling the exhaust unit, and controlling the valve according to the water level. Make a point.

Description

Functional drinking water supply apparatus for Indoor electrolytic treatment of microorganism contaminated}

The present invention relates to an electrolytic treatment device for drinking water that is easily and safely sterilized with microorganisms and restored to drinkable water, and is rich in weakly alkaline dissolved oxygen.

In general, due to various pollutants caused by the development of industrial structure and population growth, the distrust of water, such as tap water and groundwater, which has previously been considered safe is increasing, and the economic expenditure for obtaining safe drinking water is rapidly increasing. Therefore, in general households, water purifiers using reverse osmosis, filters, ion exchange resins, ozone, electrolytic treatment technology, etc. are widely used. The technology used in the water purifier has its own unique characteristics, but the disadvantages also have a big impact on the manufacturing cost and maintenance of the water purifier.

The conventional reverse osmosis method effectively removes this substance such as bacteria, but also removes minerals required by the human body, consumes a lot of power to maintain high pressure, and when using hollow fiber membranes or ceramic filters, does not remove dissolved minernals. The use of water purifiers is difficult due to the high possibility of bacterial contamination of the membrane, and the ion exchange treatment method is not effective for removing organic matter and excessive removal of dissolved minerals is not suitable for drinking water treatment. It uses sterilizing power and oxidizing power, but it is very difficult to control ozone amount, so it is very harmful to human body when overproduction. Electrolytic treatment is a method of classifying and producing alkaline water and acidic water by electrolyzing water, or adding a small amount of sodium chloride (NaCl) to increase acid bactericidal power. It has a complicated electrode assembly structure, making it difficult to manufacture and maintain.

Generally, water purifiers used in most households are safe tap water or groundwater, where the source of the treated water is safe for drinking.The pollution of these waters is mainly transferred to drinking water by recontamination by bacteria in the process of storage, apartments, and groundwater. In many cases it becomes inappropriate. Therefore, at present, many water management offices supply chlorine to prevent re-contamination by bacteria during the supply process. As a result, residual chlorine having bactericidal power is present in the water, so that the residual chlorine is excessive in the final tap water. If it is high, it is harmful to the human body, and if it is too low, it may cause contamination by bacteria. Therefore, in order to avoid the hassle of boiling due to the distrust of tap water, the treated water can be restored to the original drinking water through proper sterilization in an inexpensive manner. Water purifiers used in most households are expensive to manufacture due to excessive water treatment and are difficult to maintain, resulting in the problem of re-contamination of bacteria by water purifiers.

In general, the electrolytic apparatus for water treatment is targeted only to a solution having an appropriate voltage between the anode and the cathode, or to increase the conductivity of the solution and to produce an oxidizing substance, hypochlorous acid, to sterilize or decompose organic matters. A method of constantly injecting salt into an electrolytic reactor is employed, and most electrolytic apparatuses have an ion exchange membrane separating a cathode and an anode, and in all cases, spacers and electrodes to ensure that the electrode or ion exchange membrane mounted in the electrolytic reactor have a continuous layer structure By using a bolt and nut has a structure assembled in a stack (stack) type, the assembly and disassembly is not easy when cleaning for mounting and maintenance of the assembly. Most of these electrolyzers are for large-capacity treatment targets such as industrial wastewater, process water treatment, and effluent treatment discharged to the water system, and are usually installed in open areas. In this case, oxygen and hydrogen generated during electrolytic reaction There is no concept of processing.

Therefore, the conventional electrolytic device is not structurally suitable for the sterilization treatment of drinking water simply recontaminated by the bacteria and the like mentioned above. In addition, to produce small-scale sterilized water, sterilized by making strong acidic water of pH 2 or less at the anode with an ion exchange membrane, or by adding a bromine (Br) chlorine (Cl) compound to the water, Sterilization by dissolving salt ions etc. having sterilizing power, but these substances have a long residence time for water, which may be harmful to the human body, which may cause problems for direct drinking water.

As a prior art in the field of the present invention, the present invention is made of a positive electrode and a negative electrode assembly having a bolt, a nut and an electrode gap retaining spacer, making it difficult to separate for assembly and repair and to supply the target water The position to be injected into the sieve is to come out between the electrode plate formed through the spacer through the side of the electrode body, and the electrode body is composed of an open form floating on the treated water storage tank for a large-capacity treatment is different from the present invention, structure and purpose. Patent Publication No. 2000-0047427 has the same structure as Patent Application No. 2001-0093147 for industrial wastewater treatment, and the purpose and structure of the present invention are different, and Patent Literature No. 1999-0085959, Patent No. 1999-0072981, and the like are electrode bodies. And the present invention, the principle and the structure is different by the method of injecting salt into the electrolytic reactor to obtain the sterilized water by the assembly using bolts and nuts, the publication 1999-0071335 is an electrolytic cell for cleaning the medical equipment is different in structure and purpose . In addition, Patent Publication No. 1999-00043068, Patent 1999-018137, Patent 1998-087769, etc. is an electrolytic device for independently producing sterilizing water and alkaline water by supplying sodium chloride to generate hypochlorous acid for electrolytic membranes and sterilization. The purpose is different, and Patent Documents No. 1998-083403 and No. 1998-029456 also differ in device structure and purpose.

The present invention is devised to solve the conventional problems as described above, the catalytic oxide electrode generating an active hydroxyl group having a high oxidizing power and bactericidal power ion exchange membrane, a spacer in the form of a gasket (gasket) for maintaining the electrode gap and By using a holder having a series of finely spaced grooves without the use of bolts and nuts, the electrode body can be stacked and made to be easily mounted and detached. Drinking water has an electrolytic treatment to operate under low electrolytic voltage without supplying additional electrolyte such as sodium chloride in the treatment of tap water and groundwater contaminated with microorganisms and an exhaust structure to safely treat oxygen and hydrogen generated during electrolytic reaction using the same. To provide an electrolytic treatment device for the production of possible sterile water. It shall be.

The present invention for achieving the above object is an electrolytic reactor (10) having a groove of fine intervals in a stacked electrode body structure, a storage unit 20 for storing the sterilized drinking water in the electrolytic reactor (10), and the electrolytic reactor And an exhaust unit 30 for preventing the accumulation of electrolytic reaction gas generated at 10, and a control unit 40 for supplying power to the electrolytic reactor 20, controlling the exhaust unit, and controlling the valve according to the water level. .

1 is an electrolytic reactor having a microgap retention holder according to the present invention (A) is a microgap retention holder and an electrode body, (B) is an embodiment in which the electrode body is mounted on the microgap retention holder, (C) is Electrolytic reactor with electrode bundles in which fine gaps are maintained

2 is an internal configuration diagram of a drinking water electrolytic treatment apparatus using a plurality of bodies having an electrolytic generating gas treatment and a fine gap according to the present invention

3 and 4 is an embodiment of the electrolytic sterilization treatment according to the present invention

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

(A) Electrode bundle (10) Electrolytic reactor

(11) Electrode Holder (11a) Horizontal Groove

(12) anode (13) cathode

(14) Electrode connection clamp (15) Contaminated water inlet

(16) treated water outlet (17) reactor case

(20) reservoir (21) stabilization tank

(21a, 22b) residual generating gas discharge pipe

(22) Treatment water storage tank (22a) Treatment water discharge valve

(22c) Oberprow tube

(30) Exhaust (31) Suction Filter (31)

(32) Gas discharge fan (33) Electronic current control sensor

40 control unit 41 DC power supply

(42) Water Level Regulator (43) Solenoid Valve

The present invention to achieve the object as described above and to perform the problem to remove the conventional defects drinking water, such as existing tap water or ground water drinking water again through an easy treatment when it is contaminated by microorganisms or excessive residual chlorine, etc. In order to recover, the catalytic oxide positive electrode and the corresponding negative electrode which can generate active hydroxyl group (OH ^* ) which are immediately extinguished and do not remain in water due to its oxidizing power and bactericidal power are stronger than ozone and do not remain in water. Rather than assembling a complex assembly into a stack using bolts and nuts, it is easy to mount and detach electrodes by stacking electrodes using holders having a series of finely spaced grooves. This structure lowers the solution resistance between the electrodes and contaminates the microorganisms. When treating water and ground water, it operates under low electrolytic voltage without supplying electrolyte such as sodium chloride, and the treated water is characterized by producing water rich in alkaline oxygen, which is about 8 to 9, which is beneficial to human body. . Here, the target water flows into the lower part of the electrolytic reactor and sterilizes microorganisms or treats dissolved flames, and then causes the treated water to overflow into the upper discharge pipe. The gas dilution ejector was installed to safely handle the generation of oxygen and hydrogen generated during the electrolytic reaction while the water reservoir was closed. In addition, it is designed to cause an electrolytic reaction only when the generated gas dilution ejector is in operation, thereby ensuring stability by not accumulating in the drinking water treatment apparatus.

Hereinafter, the configuration and the operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an electrolytic reactor having a microgap retention holder according to the present invention, (A) is a microgap retention holder and an electrode body, (B) is an embodiment in which the electrode body is mounted on the microgap retention holder, and (C) 2 is an electrolytic reactor having an electrode bundle in which fine gaps are maintained, and FIG. 2 is an internal configuration diagram of an electrolytic generating gas treatment and a drinking water electrolytic treatment apparatus using a bundle having fine gaps, and FIGS. 3 and 4 As an embodiment of the electrolytic sterilization treatment according to the invention,

The present invention is a stack-type electrode body structure having an electrochemical reactor 10 having a fine interval groove, the storage unit 20 for storing the sterilized drinking water in the electrolytic reactor 10, and generated in the electrolytic reactor 10 An exhaust unit 30 for preventing the accumulation of the electrolytic reaction gas, and a control unit 40 for supplying power to the electrolytic reactor 20, controlling the exhaust unit and controlling the valve according to the water level.

In the electrolytic reactor 10, the positive electrode 12 and the negative electrode 13 are alternately disposed in an electrode holder 11 having a plurality of horizontal grooves 11a having a central portion connected to each other and maintaining minute gaps between the electrodes. Inserted and fixed, the electrode bundle (A) consisting of an electrode connection clamp 14 for connecting the positive electrode 12 and the negative electrode 13 in a single polarity,

The electrode bundle A is inserted and the contaminated water inlet 15 is formed at the bottom, and the reactor case 17 has the treated water outlet 16 formed at one side thereof.

The storage unit 20 is connected to the treated water outlet 16 of the electrolytic reactor and the stabilization tank 21 is provided with a residual gas discharge pipe 21a at the top, and is connected to the stabilization tank 21 and the treated water It is used by the discharge valve 22a and consists of the treated-water storage tank 22 provided with the residual generation gas discharge pipe 22b in the upper part, and the over-prove pipe 22c in the upper one side.

The exhaust unit 30 includes an intake filter 31 for introducing air, a gas discharge fan 32 for discharging diluted gas introduced through the intake filter, and an electronic load for measuring a current load of the gas discharge fan. It consists of the current control sensor 33.

The control unit 40 is an external AC power is supplied to the electrolytic reactor 10 through the DC power supply 41, the DC power supply 41 is a current control sensor for measuring the current load of the gas discharge fan (32) It is a structure which is connected to the solenoid valve 43 controlled by the water level regulator 42 installed in the 33 and the process water storage tank 22. As shown in FIG.

The present invention configured as described above has a narrower electrode resistance during the small-capacity electrolytic treatment in the case where the solution electrical conductivity of general tap water or groundwater is relatively low, thereby reducing the solution resistance between the electrodes, and thus reducing the voltage applied to the electrodes. Make it work. In addition, the present invention does not use an ion exchange membrane, and it is possible to easily assemble and mount the electrodes in a stack type without using gasket spacers and bolts and nuts to maintain the electrode gap. An electrode holder is used that is open and has a groove that can maintain a series of constant microgaps. The anode electrode used in the present design are (HOCl, OCl ^-) such as hypochlorous acid produced by the oxidation of chloride ion which is widely used in treatment delivery for contaminated drinking water disinfection generally not be processed by, than oxidizing power and sterilizing power of ozone Catalytic oxide anodes (IrO ₂ , RuO ₂ , SnO _2, or composite oxide electrodes thereof), which are strong and have a very short lifespan compared to hypochlorous acid, generate active hydroxyl groups (OH ^* ) that do not remain in water and are immediately extinguished. As the cathode, a reduction reaction occurs stably and uses durable materials (Ti, SUS, Ni). In the positive electrode, active hydroxyl groups are generated from the electrode surface in the process of generating oxygen as described below.

^{_{2H 2 O → 4H + + O}} 2 + 4e - (1)

_{^{4OH - → 2O 2 + 4H +}} + 4e - (2)

On the other hand, hydrogen gas and hydroxyl ions are generated in the cathode as follows.

^{_{2H 2 O + 2e - → H}} 2 + 2OH - (3)

_{^{2H + + 2e - → H 2}} (4)

When the solution is almost neutral, the reaction of reaction formula (1) occurs at the positive electrode and the reaction (3) occurs at the negative electrode, so that when the same current flows at both electrodes, the electrolyte may change to about alkaline water when there is no ion separator in the electrolytic reactor. . In addition, residual chlorine may be removed by the electrode oxidation reaction and violently generated fine bubbles in the electrode when excessive residual chlorine is present in the treated water.

In addition, in the present invention, an electrolytic reaction tank for treating drinking water, a stabilization tank through which electrolytic sterilization water passes, and a treatment water storage tank are separated in a sealed manner so that oxygen and hydrogen generated during the electrolytic reaction do not accumulate in the sealed electrolytic reaction tank space. In order to pass through the filter to the electrolytic reaction chamber is designed to dilute and discharge hydrogen and oxygen. It is designed to supply electric current to the electrolytic reactor only when the generated gas dilution ejector is in operation so that hydrogen gas does not accumulate in the drinking water sterilization treatment device to ensure stability.

As shown in FIG. 1, the electrolytic reactor structure of the present invention for treating a target polluted water is stacked in a stack form without using a spacer, a gasket-shaped spacer, and bolts and nuts to maintain an electrode gap. The anode and cathode electrodes can be alternately inserted into the microgap holder, which has a groove and a bottom structure that allow the electrodes to maintain a minute gap of about 0.5 to 2 mm for easy assembly and mounting. The current supply terminals of the cathodes are located at both ends of each electrode and can be connected to each other in a monopolar manner using clamps for connecting the anodes and cathodes. In the state in which the electrodes are arranged in the reactor, electrolytic polarization reaction occurs at less than 20 volts of the target water of microbial contamination such as tap water and ground water, thereby generating active hydroxyl groups. As shown in (A), (B), and (C) of FIG. 1, an electrode bundle formed by inserting an anode and a cathode into an electrode holder for maintaining a fine gap is mounted in an electrolytic reactor holder, and the number of sterilization targets is an electrolytic reactor. It enters through the contaminated water inlet at the bottom of the holder and is sterilized by active hydroxyl groups generated at the electrode and then exits through the treated water outlet at the top of the electrode holder. The treated water leaving the electrolytic reactor is primarily in the stabilization tank, and does not bubble up in the electrolytic reactor and removes the fine bubbles remaining in the solution, and the water passing through the stabilization tank is stored in the final treated water storage tank for treatment. Allow use through a water discharge valve. The inflow of water into the electrolytic reactor is controlled by a solenoid valve controlled by a water level regulator installed in the treated water reservoir. In order to safely dilute and discharge hydrogen and oxygen generated during the electrolytic reaction in the space where the electrolytic reactor is located, air is introduced through the suction filter to be diluted with the generated gas, and the diluted gas is discharged to the atmosphere through the gas discharge fan. To prevent accumulation of hydrogen in the electrolytic reactor. At this time, in order to prevent the electrolytic reactor from accumulating in the apparatus by operating the electrolytic reactor while the gas discharge fan is not operating, the DC power supply is provided by an electronic current control sensor measuring the current load of the gas discharge fan and an AC external power source. To work. As described above, the present invention sterilizes the target water by the electrolytic reaction without supplying an electrolyte such as sodium chloride even under low supply voltage for drinking water such as tap water or groundwater, which is contaminated by microorganisms. Allows the treated solution to be converted to weak alkaline water without the gas, and has an exhaust structure for safely treating oxygen and hydrogen generated during electrolytic reactions. It is to be done.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Experiment 1

In order to see the sterilization effect of the present invention, E. coli was prepared using an electrolytic reactor equipped with IrO ₂ -RuO ₂ composite oxide electrode (12 x 6 mm mesh type 3 x 4 cm) as the anode and SUS (3 x 4 cm) as the cathode. The sterilization experiment of tap water with E.Coli XL-Blue) was carried out, and the results of the flow rate of the contaminated water, the current and voltage supplied to the electrolytic reactor, and the number of E. coli in the treated water were shown in Table 1. have. In order to confirm the number of E. coli present in the influent and treated water, the culture medium (badge) (DIFCO (sigma 24011) LB agar) was used for 12 hours of incubation of E. coli and the number of bacteria was measured. 3 and 4 show examples showing the culture results of E. coli before and after the electrolytic treatment of Experiment 2 and Experiment 7 in Table 1. In general, the commercialized DC rectifier supply voltage is 5-20 volts, and the electrolytic reactor is fully operated by the minute gap, so that the supply current density is 3.7-18 mA / cm ² , which is introduced when the flow rate is 18.5 ml / min. It can be seen that E. coli is sterilized and is not detected at all. Even if the flow rate is increased to 220ml / min with a supply potential of 15 volts, all of the E. coli in the influent can be sterilized. It can be seen from the electrolytic sterilization example that the present invention is effective in treating drinking water such as tap water and groundwater contaminated with microorganisms.

Experiment 2

An experiment was conducted to see the electrolytically treated water changed by the present invention into alkaline water. Using an electrolytic reactor equipped with three sets of IrO ₂ -RuO ₂ composite oxide (12 x 6mm mesh type 3 x 4 cm) as the anode and SUS (3 x 4 cm) as the cathode, the supply voltage is 12 volts and the current density is about 11 mA / Table 2 shows an example of pH change according to the flow rate of the inflow target water at cm ² . When the pH of the influent is 7.68 and the flow rate is 220ml / min, the pH of the treated water is changed to 8.4. At the flow rate of 17ml / min where the residence time of the treated water is shortened, the pH is increased to about 8.8. The number can be seen to change to a weak alkaline number beneficial to the human body.

TABLE 1

No Flow rate (ml / min) Supply potential Supply current (A) (current density: mA / cm ² ) Number of bacteria before electrolytic treatment (cfu / ml) Number of cells after electrolytic elimination (cfu / ml) One 18.5 5 0.134 (3.72) 31,500 0 2 18.5 10 0.35 (9.72) 119,000 0 3 18.5 15 0.54 (15.0) 38,200 0 4 18.5 18 0.62 (17.2) 29,500 0 5 42 15 0.54 (15.0) 135,000 0 6 123 15 0.54 (15.0) 40,000 0 7 220 15 0.54 (15.0) 24,000 0

TABLE 2

Flow rate (ml / min) pH Enemies (no DC) 7.68 17 8.85 42 8.53 123 8.50 220 8.39

Claims (5)

Electrolytic reactor 10 having a finely spaced groove in a stacked electrode body structure, a storage unit 20 for storing drinking water sterilized in the electrolytic reactor 10, and an electrolytic reaction generated in the electrolytic reactor 10 Indoor microorganism-contaminated drinking water, comprising an exhaust unit 30 for preventing gas accumulation and a control unit 40 for supplying power to the electrolytic reactor 20, controlling the exhaust unit, and controlling a valve according to the water level. Functional Beverage Feeder for Electrolytic Sterilization The method of claim 1, In the electrolytic reactor 10, the positive electrode 12 and the negative electrode 13 are alternately disposed in an electrode holder 11 having a plurality of horizontal grooves 11a having a central portion connected to each other and maintaining minute gaps between the electrodes. Inserted and fixed, the electrode bundle (A) consisting of an electrode connection clamp 14 for connecting the positive electrode 12 and the negative electrode 13 in a single polarity, Electrolytic microorganism contamination drinking water electrolysis, characterized in that the electrode bundle (A) is inserted and the contaminated water inlet 15 is formed on the bottom surface, the reactor case 17 is formed with the treated water outlet 16 on one side Functional Beverage Supply Unit for Sterilization Treatment The method of claim 1, The storage unit 20 is connected to the treated water outlet 16 of the electrolytic reactor and the stabilization tank 21 is provided with a residual gas discharge pipe 21a at the top, and is connected to the stabilization tank 21 and the treated water Indoor use, characterized by consisting of a treated water reservoir 22, which is used by the discharge valve 22a and is provided with a residual gas discharge pipe 22b at the top and an over-probe pipe 22c at the upper side. Functional Beverage Supply Device for Electrolytic Disinfection of Microbial Contaminated Drinking Water The method of claim 1, The exhaust unit 30 includes an intake filter 31 for introducing air, a gas discharge fan 32 for discharging diluted gas introduced through the intake filter, and an electronic load for measuring a current load of the gas discharge fan. Functional beverage supply apparatus for indoor microbial contamination drinking water electrolytic sterilization treatment, characterized in that the current control sensor 33 The method of claim 1, The control unit 40 is an external AC power is supplied to the electrolytic reactor 10 through the DC power supply 41, the DC power supply 41 is a current control sensor for measuring the current load of the gas discharge fan (32) Functional beverage supply apparatus for indoor microbial contaminated drinking water electrolytic sterilization treatment, characterized in that connected to the solenoid valve 43 controlled by the water level regulator 42 installed in the 33 and the treated water storage tank (22).