KR100304461B1 - Apparatus cleaning water - Google Patents

Abstract

PURPOSE: Provided is an apparatus for treating wastewater using slipping surface discharge (SSD). CONSTITUTION: The apparatus includes a part(100) for generating high voltage pulse; a part(200) for generating plasma by slipping surface discharge using high voltage pulse; and a part(300) for supplying air to the part(200). Therefore, heavy metal of wastewater is removed by plasma. And ultraviolet rays are irradiated with plasma, so disinfection of wastewater is operated. Also, ozone is generated, thereby dissolved oxygen content is increased. Consequently wastewater is treated efficiently.

Description

Sewage purification device {APPARATUS CLEANING WATER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater purification apparatus for purifying wastewater using plasma, and in particular, to purify wastewater by generating a large amount of plasma using a slipping surface discharge (SSD) and high voltage pulses. It relates to a sewage purification device.

In general, wastewater and sewage treatment methods include cultivating microorganisms in an aerobic state caused by forced aeration using various oils and inorganic substances contained in wastewater and sewage, and circulating the microorganisms and wastewater so circulated in the wastewater and sewage. Most biological treatment methods using microorganisms that remove various oils and inorganic substances through gradual processes such as oxidation, decomposition, coagulation, adsorption, and precipitation are adopted.

Such biological wastewater treatment methods include active sludge method and biofilm method, and a mixture of these methods. Among the activated sludge method, organic matter mainly consumes bacteria and fungi, whereas biofilm method has a large amount of protozoa, especially ciliated larvae, for wastewater treatment. It will play an important role.

However, the biological wastewater treatment method has a problem that the effective use of dissolved oxygen is inhibited because the microorganisms are collected in the carrier in the normal state.

In addition, the biological wastewater treatment method has a problem that it is difficult to remove various heavy metals contained in the wastewater.

In order to solve the above problems, an object of the present invention is to provide a wastewater purification apparatus for removing and purifying heavy metals in wastewater by generating a large amount of plasma using a sleeping surface discharge (SSD) and a high voltage pulse. .

In order to achieve the above object, the present invention is provided with a high voltage pulse generator to generate a plasma according to the high voltage pulse generated by the high voltage pulse generator in the sewage purification apparatus, which is installed in the sewage tank into which the sewage flows A plasma generator for charging and discharging the sleeping surface according to a high voltage pulse supplied from the high voltage pulse generator to generate a plasma; And an air supply unit for supplying air containing a predetermined gas to the plasma generating unit to generate bubbles in the sleeping surface so as to generate plasma in the filthy water.

1 is a block diagram of a sewage purification apparatus according to the present invention

2 is a detailed structural diagram of an embodiment of the plasma generator of FIG.

2A is a front sectional view of the plasma generating unit;

FIG. 2B is a cross-sectional view taken along the line A-A of FIG. 2A

FIG. 2C is a cross-sectional view taken along the line B-B in FIG. 2A

3 is a detailed structural diagram of another embodiment of the plasma generation unit of FIG. 1;

3A is a front view of the plasma generating unit

3B is a sectional front view of the plasma generating unit;

3C is a cross-sectional view taken along the line C-C in FIG. 3B

3D is a cross-sectional view taken along the line D-D in FIG. 3B

4 is a configuration diagram of another embodiment of the plasma generation unit of FIG.

4A illustrates another embodiment of the plasma generator;

4B is a front view of another embodiment of a plasma generating unit

5 is a configuration diagram of another embodiment of the wastewater purification apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

100: high voltage pulse generator 200: plasma generator

210, 250, 290: positive electrode portion

211 to 215, 251 to 255: unit electrode

221 to 224 and 261 to 264: space portion

230, 280: negative electrode portion 240, 270: insulated tube

241, 271: air passage 242, 272: air outlet

281: insulation coating 300: air supply

400: control unit 500: circulation unit

510: circulation pump 600: holding tank

700: plasma

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In general, the plasma is highly ionized, so that the (+) and (-) ions are present at the same density and are electrically balanced and neutral.

Sewage purification apparatus according to the present invention for generating such a plasma to purify the sewage is a high voltage pulse generator 100 for generating a high voltage pulse, a plasma generator 200 for generating a plasma, as shown in FIG. An air supply unit 300 for supplying air, a circulation unit 500 for circulating sewage in the sewage tank 600 using the circulation pump 510, and the high voltage pulse generator 100 and the air supply unit 300. And a control unit 400 for controlling the circulation pump 500.

The high voltage pulse generator 100 generates a high voltage pulse, that is, a high voltage pulse having a frequency of 10 Hz to 250 Hz and a voltage of 20 KV to 60 KV, and outputs the high voltage pulse to the plasma generator 200.

The plasma generator 200 is installed in the sewage tank 600 into which filthy water flows, and the sleeping surface is charged and discharged according to the high voltage pulse supplied from the high voltage pulse generator 100 to generate plasma.

Here, as shown in FIG. 2, one or more unit electrodes 211 to 215 and space parts 221 to 224 are alternately disposed to charge and discharge the plasma generator 200. The positive electrode portion 210 to which the high voltage pulse output from the 100 is applied to one unit electrode, the negative electrode portion 230 disposed on the rear surface of the positive electrode portion 210, and the positive electrode portion 210 and the negative electrode portion 210. It is disposed between the electrode unit 230 and one or a plurality of air outlet 242 is formed in the space (221 to 224) of the two electrode unit 210 to discharge the air injected from the air supply unit 300 It consists of an insulating tube 240 to be.

The air supply unit 300 supplies air to the plasma generator 200 to form an insulation capacitor for generating plasma in the sewage. That is, the air supply unit 300 supplies air to the plasma generating unit 200 to generate air bubbles on the sleeping surface, thereby forming an insulation capacitor to generate plasma.

In the air supply unit 300, the plasma generator 200 injects a specific gas into the plasma generator 200 to generate a large amount of plasma in the sewage. At this time, the specific gas is nitrogen dioxide gas, helium gas, irgon and chlorofluorocarbon gas mixture, chlorofluorocarbon gas, or argon, hydrogen and methane gas mixture.

The circulation unit 500 is to circulate the sewage in the sewage tank 600 to increase the amount of oxygen in the sewage, the sewage through the sewage discharge pipe 520 from the sewage discharge port 620 in the sewage tank 600 Outflow and circulating pump 510 for introducing the wastewater through the sewage inlet 630 and the sewage inlet 630 in the sewage tank 600.

The operation of the sewage purification apparatus according to the present invention thus achieved will be described in detail.

First, the wastewater is inserted into the wastewater tank 600 through the wastewater inlet 610 of the wastewater tank 600, and then the high voltage pulse generator 100 and the air supply unit 300 are operated by the controller 400 to operate the 10 Hz. Nitrogen dioxide gas, helium gas, argon and chlorofluorocarbon gas mixture, chlorofluorocarbon gas, or the like, having a frequency of ˜250 Hz and supplying a high voltage pulse having a voltage of 20 KV to 60 KV to the electrode of the plasma generator 200 Air containing argon and a mixture of hydrogen and methane gas is introduced into the insulation tube 240 through the air inlet tube 310.

In this case, the plasma generator 200 generates plasma by charging and discharging the surfaces of the unit electrodes 211 to 215 according to the high voltage pulse supplied from the high voltage pulse generator 100 and the introduced air.

The process of generating the plasma as described above in detail with reference to FIG.

Air including the gas or the gas mixture that generates plasma to the insulator tube 240 through the air inlet tube 310 is introduced and the air is discharged through the air outlet 242 formed in the space (221 to 224) Therefore, an insulation capacitor is formed between the unit electrodes 211 to 215. That is, an insulation capacitor is formed in the space portions 221 to 224 between the air passage 241 of the insulation tube 240 and the unit electrodes 211 to 215 by the air discharged without being insulated by the sewage 710. Will be formed.

At this time, while a high voltage pulse is continuously applied to one side unit electrode 211 of both electrode portions 210, it is introduced into the insulated tube 240 through the air inlet tube 310 and thus the air outlet port of the spaces 221 to 224. A capacitor is formed by the air between the air passage 242 and the air passage of the insulated tube 240, so that continuous charging and discharging is performed, thereby generating plasma.

That is, air that is an insulator that passes through the air passage 241 of the insulator tube 240 formed between the unit electrodes 211 to 215 and the negative electrode unit 230 and the air outlet 242 of the space parts 221 to 224. The capacitor is formed by this.

In other words, a capacitor is formed by the insulating air in the air passage 241 of the insulating tube 240 formed between the unit electrode 211 and the negative electrode unit 230, and the space formed between the unit electrodes 211 and 212. A capacitor is formed by the insulated air of the air outlet 242 of the unit 221, and the insulated air of the air passage 241 of the insulated tube 240 formed between the unit electrode 212 and the negative electrode unit 230. The capacitor is formed, the capacitor is formed by the insulating air of the air outlet 242 of the space portion 222 formed between the unit electrodes (212, 213), between the unit electrode 213 and the negative electrode portion 230 The capacitor is formed by the insulated air of the air passage 241 of the insulated tube 240 formed in the capacitor, and the capacitor is formed by the insulated air of the air outlet 242 of the space 223 formed between the unit electrodes 213 and 214. Is formed, and the air passage of the insulating tube 240 formed between the unit electrode 214 and the negative electrode unit 230 ( A capacitor is formed by the insulated air of 241, and a capacitor is formed by the insulated air of the air outlet 242 of the space portion 224 formed between the unit electrodes 214 and 215, and the unit electrode 215 and the negative A capacitor is formed by the insulating air of the air passage 241 of the insulating tube 240 formed between the electrode portion 230.

In this case, when the high voltage pulse generator 100 continuously applies the high voltage pulse, the insulation air and each unit electrode 211 of the air outlet 242 of the spaces 221 to 224 between the unit electrodes 211 to 215 are applied. 215 to 215 and the metallic plasma 700 is generated by sequentially charging and discharging by a capacitor formed by the insulating air of the insulating tube 240 between the integral negative electrode portion 230.

That is, depending on the high voltage pulse applied and the insulated air supplied, each capacitor is sequentially charged and discharged to the air outlet 242 of the sleeping tube, that is, the insulated tube 240, or the proximity of the insulated tube 240, and discharge of each capacitor. The plasma 270 is generated.

At this time, the air supply unit 300 includes a gas or gas mixture that generates plasma, that is, nitrogen dioxide gas, helium gas, argon and chlorofluorocarbon gas mixture, chlorofluorocarbon gas, or argon, hydrogen and methane gas mixture. When the gas is introduced into the air passage 241 of the air insulation tube 240, the air including the plasma is discharged to the sewage through the air outlet 242. The plasma discharged here becomes a metallic plasma as a metal electrode.

At this time, since the gas or the gas mixture for generating a plasma is distributed in the insulating tube 240, a large amount of plasma may be generated accordingly.

The discharged plasma is combined with the heavy metal of the sewage flow to fall to the bottom surface of the sewage tank 600 in the form of sludge, such heavy metal sludge may be removed separately.

On the other hand, the control unit 400 operates the circulation pump 510 to circulate the sewage in the sewage tank 600 to increase the amount of oxygen in the sewage. That is, the circulating pump 510 operates the sewage from the sewage discharge port 620 in the sewage tank 600 through the sewage discharge pipe 520, and the sewage inlet pipe 530 and the sewage inlet 630 in the sewage tank 600. ), So that the amount of dissolved oxygen is increased to facilitate the sewage purification.

That is, the generation of plasma causes intense ultraviolet emission and cavitation with sound waves, chemically active radicals are generated, and new materials, namely H ₂ O ₂ , O _3, and the like are produced.

Therefore, the amount of oxygen in the wastewater increases, the amount of dissolved oxygen increases, the wastewater is sterilized by ultraviolet rays, and ions are generated at the same time.

Another embodiment of the plasma generator 200 is formed by forming a unit electrode in a ring shape as shown in FIG.

That is, in another embodiment of the plasma generating unit 200, one or more unit electrodes 251 to 255 having a ring shape and the spaces 261 to 264 are alternately formed to perform charge and discharge as shown in FIG. The electrode unit 250 is disposed, and the high voltage pulse output from the high voltage pulse generator 100 is applied to one unit electrode, and is formed in a cylindrical shape so that the unit electrodes 251 to 255 are inserted into an outer circumferential surface of the space part 261. To 264, one or a plurality of air outlets 272 are formed, and an air passage 271 is formed therein to allow the air injected from the air supply unit 300 to discharge the insulated tube 270 and the insulated tube ( A negative electrode portion 280 disposed in the longitudinal direction in the air passage 271 of 270 and wrapped with an insulating coating 281.

In another embodiment of the plasma generation unit 200 formed as described above, since the unit electrodes 251 to 255 are formed in a ring shape, the corresponding area between the unit electrodes 251 to 255 is widened to be formed between the unit electrodes 251 to 255. The capacitance of the capacitor can be large, which can generate a lot of plasma.

Air including the gas or the gas mixture that generates plasma into the air passage 271 of the insulator tube 270 is introduced through the air inlet tube 310 and the air is formed in the air outlets 261 to 264. By discharging through 272, an insulating capacitor is formed between the unit electrodes 251 to 255. That is, an insulation capacitor is formed in the spaces 261 to 264 between the air passage 271 of the insulation tube 270 and the unit electrodes 251 to 255 by the air discharged without being insulated by the sewage 710. Will be formed.

At this time, while a high voltage pulse is continuously applied to one side unit electrode 251 of both electrode portions 250, it is introduced into the air passage 271 of the insulated tube 270 through the air inlet tube 310 and thus the spaces 261 ˜. A capacitor is formed by the air discharged between the air outlet 272 of the 264 and the air passage 271 of the insulator tube 270 to generate a continuous charge and discharge, thereby generating a plasma 700.

In addition, another embodiment of the plasma generating unit 200 according to the present invention can be simply implemented with two electrodes as shown in FIG. That is, another embodiment of the plasma generating unit has an insulated tube in the form of a tube and integrally forms the positive and negative electrode units, respectively.

In other words, another embodiment of the plasma generator 200 is formed in the form of a tube as shown in FIG. 4, and an air passage 271 is formed therein, and a plurality of air outlets 272 are formed on an outer circumferential surface thereof. Insulating tube 270 to allow the air supplied from the air supply unit to be discharged through the air passage 271 and the air outlet 272, while covering and wrapping the insulating tube 270 on one end of the insulating tube 270 A positive electrode 290 formed in a cylindrical rod shape in the inner air passage 271 of the insulated tube, and a negative electrode 291 formed in a ring shape on the outer peripheral surface of the other end of the insulated tube 270.

Operation of another embodiment of the plasma generation unit 200 made as described above will be described with reference to FIG. 4.

When the filthy water 710 is filled in the sewage tank 600, air is injected from the air supply unit 300, and when a high voltage is applied from the high voltage pulse generator 100, the positive electrode 290 and the negative electrode ( The charging and discharging is performed between the 291 to generate the plasma 700.

On the other hand, since the air is lighter than water, the air is going to rise on the water in the sewage, so when the plasma generator 200 formed in the longitudinal direction is installed in the vertical direction on the bottom surface of the sewage tank 600, more air outlets Can be discharged. That is, as shown in FIG. 5, when another embodiment of the plasma generating unit 200 in which the unit electrodes are formed in a ring shape is installed vertically perpendicular to the bottom surface of the sewage tank 600, the space portion of the outer peripheral surface of the insulating tube ( Since air is discharged in all directions by the air outlets 272 formed at 261 to 264, a large amount of plasma may be generated.

In addition, in order to generate a large amount of plasma, more air may be introduced from the air supply unit 300 while generating a high voltage pulse having a frequency of 10 Hz to 250 Hz and a voltage of 20 KV to 60 KV in the high frequency generator 200.

As described above, the wastewater purification apparatus according to the present invention has the following effects.

First, since a large amount of plasma is continuously generated, the heavy metal can be easily separated and removed from the wastewater contaminated with heavy metal. It is also possible to remove harmful mixtures such as phenols, formals and the like.

Second, since ultraviolet rays are emitted along with the plasma, disinfection in drinking water or sewage is naturally performed, and thus another contamination by chlorine disinfection can be removed.

Third, since ozone is released, the amount of dissolved oxygen in the water is increased, thereby enabling faster purification.

Fourth, the water is sterilized without separate disinfection by chlorine, etc., when it is necessary to disinfect a large amount of water, such as a swimming pool, it is possible to easily remove bacteria to prevent eye diseases, etc. Purification can be done to keep clean water all day long.

Fifth, because the structure is simple, the production is easy, and can be used for a long time.

Sixth, power consumption is low by periodically generating a high voltage pulse signal.

Seventh, the oil can be activated for medical use

Claims (8)

A high voltage pulse generator; A plasma generator for generating a plasma according to the high voltage pulse generated by the high voltage pulse generator; In the sewage purification apparatus comprising an air supply for supplying air to the plasma generating unit, One or a plurality of unit electrodes 211 to 215 and spaces 221 to 224 are alternately disposed so that the plasma generator 200 is installed in the sewage tank 600 and charge and discharge are performed. A positive electrode unit 210 to which a high voltage pulse output from the 100 is applied to one unit electrode; A negative electrode unit 230 disposed on a rear surface of the positive electrode unit 210; The air supply part is disposed between the positive electrode part 210 and the negative electrode part 230, and one or a plurality of air outlets 242 are formed in the space parts 221 to 224 of the positive electrode part 210. Sewage purification apparatus, characterized in that made of an insulating tube 240 to discharge the air injected from the (300). delete delete delete According to claim 1, wherein the plasma generating unit 200 is installed in the holding tank 600, the one or more unit electrodes (251 to 255) and the space portion (261 to 264) of the ring-shaped so that charge and discharge is made Two electrode parts 250 alternately arranged to receive a high voltage pulse output from the high voltage pulse generator 100 as one unit unit positive; The unit electrodes 251 to 255 are formed in a cylindrical shape and one or more air outlets 272 are formed in the spaces 261 to 264, and an air passage 271 is formed therein, thereby providing the air supply unit. An insulated tube 270 through which the air injected from the 300 is discharged; Sewage purification apparatus characterized in that the negative electrode portion 280 is disposed in the longitudinal direction in the air passage (271) of the insulated tube (270) and wrapped with an insulating coating (281). delete delete According to claim 1, wherein the plasma generating unit 200 is installed in the sewage tank 600, and in the form of a tube, an air passage 271 is formed therein, a plurality of air outlets 272 is formed on the outer circumferential surface An insulated tube 270 through which the air supplied from the air supply unit 300 is discharged through the air passage 271 and the air outlet 272; A positive electrode 290 formed in a cylindrical rod shape in the inner air passage 271 of the insulating tube 270 while covering and wrapping the insulating tube 270 at one end of the insulating tube 270; And a negative electrode (291) formed in a ring shape on an outer circumferential surface of the other end of the insulating tube (270).