KR100326451B1 - High Density Plasma Method and its Device Coupled with Ultrasonic Wave for Waste Water Treatment - Google Patents

Abstract

The present invention relates to a wastewater treatment method using an ultrasonic wave and a high-density plasma, and a device thereof, and more particularly, to radicals into various wastewaters such as industrial wastewater, livestock wastewater and domestic wastewater, such as dyeing wastewater, leather wastewater, petrochemical wastewater, and paper wastewater. High-density anions are dissolved and dissolved in hydrated water by micro-mixing to the molecular level that vibrates violently with ultrasonic waves of 20,000Hz ~ 40,000Hz while bubbling anions and ozone including electrons and electrons. Or heavy metal complexions, radicals, electrons, and anions leave the hydration seath, causing organic matter in water to be oxidized and decomposed instantly by ions in the air. Of method and apparatus for complex ions to be oxidized and decomposed rapidly to be.

Description

High Density Plasma Method and its Device Coupled with Ultrasonic Wave for Waste Water Treatment

The present invention relates to a wastewater treatment method using an ultrasonic wave and a high-density plasma, and a device thereof, and more particularly, to radicals into various wastewaters such as industrial wastewater, livestock wastewater and domestic wastewater, such as dyeing wastewater, leather wastewater, petrochemical wastewater, and paper wastewater. Micro-mixing to the molecular level that vibrates violently with ultrasonic waves of 20,000Hz to 40,000Hz while bubbling negative ions and ozone containing electrons and electrons.High density anions are dissolved in the wastewater and hydrated organic or heavy metal complexes. Ions (complexions), radicals, electrons, and anions leave the hydration seath, allowing organic matter or complex ions to be released in water as if volatile organic matter (VOC) is rapidly oxidized by anions in the air. It is quickly oxidized and decomposed to be cleansed.

Wastewater containing various pollutants is high in color, contaminating water quality such as river, groundwater and seawater, and blocking water and oxygen coming into the water, causing enormous damage to aquatic organisms and microorganisms. Is also emerging as a major obstacle.

In addition, the amount of industrial wastewater is increasing rapidly with the increase of the population and the development of the industry, and the environmental pollution and the destruction of the ecosystem caused by these problems are becoming a big social problem. The treatment methods and methods are being studied with a lot of hard work.

In the past, various methods of wastewater purifying devices, such as pH adjustment, coagulation of contaminants, and treatment by microorganisms, have been proposed. And it is difficult to purify and remove by the aggregate in reality, there is a problem that the purification efficiency is very low and the treatment cost is increased.

In addition, it is possible to purify and treat high-purity raw water with relatively low chemical oxygen demand (COD), such as first-class or second-class water, with ozone. It is almost impossible to purify high concentration industrial wastewater such as sugar wastewater with ozone.

Therefore, the present invention while bubbling anion and ozone containing radicals and electrons in various wastewaters, such as industrial wastewater, livestock wastewater and domestic wastewater, such as dyeing wastewater, leather wastewater, petrochemical wastewater, papermaking wastewater, 20,000Hz ~ 40,000Hz Micro-mixing to the molecular level that vibrates violently with ultrasonic waves of organic matter, wastes, organics, heavy metal complexes, radicals, electrons, and anions leave the hydration seath. It is an object of the present invention to provide a wastewater treatment method in which volatile organic compounds (VOCs) are rapidly oxidized and decomposed by anions, thereby rapidly oxidizing and decomposing organic substances or complex ions in water and purifying them cleanly.

In addition, it is an object to provide a wastewater treatment apparatus suitable for the wastewater treatment method. In general, plasma generated by high voltage low current direct current discharge in air is composed of ions, radicals, and electrons. In this case, the corona discharge oxygen anion (O ₂ ^-), ozone, negative ions (O ₃ ^-), hard hydroxide radical (OH ^-) because the negative ions, radicals and electrons, such as typically occurs plasma generating device is an anion generator LA In addition, since the ozone (O ₃ ) is mainly generated in the spark discharge, the plasma generator is called an ozone generator.

On the other hand, bubbling air, oxygen, or ozone or a mixture of these gases while electrolyzing (electrolyzing) the industrial wastewater causes chromaticity, chemical oxygen demand (COD), biological oxygen demand (BOD) and dispersion of the industrial wastewater. ^{oxidation-solid} (SS) to lower significantly the particle, etc., and the industrial waste water purification process, the compound or into a mixture thereof in industrial waste when the ring of air and oxygen, and ozone or a mixture of these gas bubbles chloride ion (Cl) due to the hypochlorous acid ions (ClO ₂ ^-), chlorite ion (ClO ₂ ^-), chlorate ion (ClO ₃ ^-) and the hypochlorite ion (ClO ₄ ^-), because the generation is greatly increased solubility of oxygen in the waste water.

Also, By this electrolysis the waste water including the same chlorate ion oxygen ions with high energy from these chlorite ion (O ₂ ^-) are to come separately attack the chromophore or auxochrome of the dye molecules or pigment molecules oxidation of these molecules Degradation reduces the chromaticity, COD, BOD, SS, etc. of the wastewater and cleanses it.

In general, it is possible to highly purify and treat tap water with relatively low chemical oxygen demand (COD), such as first-class or second-class water with ozone. It is almost impossible to purify high concentration industrial wastewater such as sugar wastewater with ozone.

However, micro-mixing at a semi-molecular level using ultrasonic waves ranging from 20,000 Hz to 40,000 Hz while bubbling anions or ozone containing radicals and electrons into the waste water, the organics or heavy metal complex ions dissolved and dissolved in the waste water are hydrated. The complexes, radicals, electrons, and anions leave the hydration seath, so organic or complex ions in water are as if volatile organic matter (VOCs) are rapidly oxidatively decomposed by anions in the air. Are quickly oxidatively decomposed.

This is due to the fact that high frequency ultrasonic waves can cause gas-like reactions in water due to the destruction of the hydration layer as mentioned above, while at the same time bringing the organics, complex ions, anions and electrons in the water to a higher energy state. It is possible because it is activated.

Under these conditions, when both the anode and the cathode are inert carbon electrodes, and electrolysis is performed while changing polarity at regular intervals, the present inventors have already invented the "industrial wastewater continuous electrolytic purification method and apparatus thereof (Patent 10-0188232). Wastewater can be cleaned up much more quickly.

In this case, the polarity of the electrode is periodically changed to increase the efficiency of electrolytic purification by removing dispersed sludge in water adhering to the anode to prevent overvoltage generated at the anode.

Such wastewater treatment is the most suitable and economical method for advanced wastewater purification because it has a special effect on the removal of chemical oxygen demand (COD), biological oxygen demand (BOD), sludge as well as denitrification, dephosphorization, decolorization and deodorization. In particular, this wastewater treatment device equipped with an electrolytic device has a very high color removal effect of the high color dye wastewater.

1 is a cross-sectional configuration of the present invention.

2 is a plan view of another embodiment of the present invention.

3: Reactor partial cross section of the present invention.

4 is a partial cross-sectional view of the present invention high density plasma generator.

5 is a partial cross-sectional view of the electrode of the high-density plasma generator of the present invention.

6 is a partial perspective view of the cathode tube of the high-density plasma generator of the present invention.

7 is a perspective view of another embodiment of the electrode of the high-density plasma generator of the present invention.

8 is a double structure cross-sectional view of the high-density plasma generator of the present invention.

9 is a cross-sectional view of another embodiment of the present invention high density plasma generator.

10 is a cross-sectional view of another embodiment of the present invention.

11 is a cross-sectional view of another embodiment of the present invention.

12 is a cross-sectional view of the fixing part of the electrolytic electrode of the present invention FIG.

13 is a perspective view of the preliminary decomposition tank of the present invention.

14 is a cross-sectional view of the sludge removal scraper in the present invention FIG.

15 is a dense configuration diagram of a continuous high density plasma wastewater treatment apparatus of the present invention.

FIG. 16 is a cross-sectional configuration of the present invention FIG. 15.

17 is a sectional view of another embodiment of the present invention high density plasma generator.

18 is a cross-sectional view of the water level adjusting apparatus of the present invention.

19 is a flow chart of the wastewater treatment apparatus of the present invention.

20 is a flow chart of another embodiment of the wastewater treatment apparatus of the present invention.

<Description of Symbols for Major Parts of Drawings>

(2)-Splitting Tank (3) (3a)-Tribal

(4)-waste water (6)-reactor

(8)-Water Pipe (10)-Water Pipe

(12) (94)-Case (14)-Reaction Chamber

(16)-inlet pipe (18)-outlet pipe

(20)-Filter (22)-Pump

(24)-Exit (26)-Secondary Reaction Chamber

(28) (128)-Ultrasonic Oscillator (30)-Protective Case

(32)-Ultrasonic Band (34)-High Density Plasma Generator

(36)-Supply Pipe (38)-Supply Fan

(40)-check valve (42)-dust collection filter

(44)-Hanging Part (46) (64) (76)-Aerator

(48)-Housing (50) (52) (54) (56)-Ceramic Insulation Ring

(58)-Spare Disassembly (60)-Cover Ring

(62)-cathode plate (66)-anode plate

(68) (70)-Feeder Wire (72)-Cathode

(74) Anode Bars (78) (84)-Discharge Chips

(80) (80a) (86)-discharge hole (82)-discharge portion of discharge hole

(88)-Dehumidifier (90)-Electric Heater

(92)-Temperature Switch (96)-Isolator

(98) (100)-Drain Valve (102)-Electro-Power

(104)-anode (106)-cathode

(108)-Polar Alternator (110) (124)-Nut

(112) (118)-O-Ring (114)-Flange Section

(116)-Insulated Nut (120)-Screw Rod

(122)-Feeding Washer (126)-Scraper

(130)-Burbing Device (132) (134) (136) (138)-Chain Gear

(140) (142)-Shaft Bar (144)-Shaft Bearing

(146) (148)-Chain (150)-Reduction Motor

(152)-Connecting Rod (154) (156)-Chain Attachment

(156)-Water Surface (160)-Sludge

(162)-Sludge Reservoir (164)-Injector

(166)-Conduit (168)-Connect

(170)-Air Supply Fan (172)-Ozone Generator

(HV)-High Voltage Part (P)-Plasma

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

The present invention comprises a decomposing tank (2) in which wastewater is dehydrated and a reactor (6) for circulating and treating the wastewater (4) of the decomposing tank (2), wherein the reactor (6) purifies the wastewater (4). A reaction chamber to be treated, an auxiliary reaction chamber, a circulator for circulating the waste water 4 into the decomposition tank 2 and the reaction chamber, an ultrasonic vibrator for vibrating the waste water 4 ultrasonically, and anion and ozone into the waste water 4 It consists of an anion and ozone generator which dissolves and purifies, and an electrolytic apparatus.

1 is a cross-sectional configuration of the present invention, the waste water tank 4 is desalination tank 2 is composed of a concrete structure or steel structure of a suitable size according to the treatment capacity, having a valve on both sides of the decomposition tank (2) A wastewater feedwater pipe 10 having a wastewater feedwater pipe 8 and a valve is provided.

Reactor (6) is installed in a semi-submersible in the digestion tank (2) using a pair of trivets (3) (3a) as shown in FIG. 1 or installed on the outer side of the digestion tank (2) as shown in FIG. , The case 12 of the reactor 6 composed of a cylindrical or polygonal shape is formed of a metal material having corrosion resistance and chemical resistance to have durability.

In the case where the reactor 6 is semi-submerged using the trivets 3 and 3a, the distal end of the water supply pipe 8 and the distal end of the discharge pipe 10 are about 10 cm from the bottom of the digester 2. Spaced apart to prevent mechanical shock, and by lowering the center of gravity of the reactor (6) or by using a fastening means to the trivet (3) (3a) to prevent rotation or flow of the reactor (6).

In addition, when the reactor 6 is installed outside the digestion tank 2 as shown in FIG. 2, a removable scraper is installed on the upper portion of the digestion tank 2 to remove sludge.

On both sides of the reaction chamber 14 of the reactor 6, the inlet pipe 16 into which the wastewater 4 to be treated is introduced and the discharge pipe 18 through which the purified wastewater 4 is discharged are immersed in the decomposition tank 2, It is installed to be connected, and both sides of the reactor 6 and the reaction chamber 12 is formed to gradually narrow toward the inlet pipe 16 and the outlet pipe 18.

The inlet tube 16 and the outlet tube 18 are formed of a synthetic resin such as nylon rather than a metal tube to prevent the destruction of negative ions or shorten the life, and the inlet tube 16 has an air stone filter 20 and a pump 22. ), The wastewater 4 of the digestion tank 2 is filtered and then introduced into the reaction chamber 14 by the pump 22 for purification, and the purified wastewater 4 is transferred to the digestion tank 2. The discharge process is repeated and circulated, and the inlet portion of the reaction chamber 12 fixes a plurality of inclined plates 22 so that the incoming wastewater 4 vortex vortex (quasi-aeration state) to make an effective reaction. To lose.

A secondary reaction chamber 26 having a smaller size than the reaction chamber 12 is formed between the outlet 24 and the outlet pipe 16 of the reactor 6 that gradually narrows to allow the high density of anions to stay for a while. The wastewater 4 treated in 14 is transferred to the auxiliary reaction chamber 26 so that it can be sufficiently purified by another reaction.

Since the size of the outlet 24 is narrower than that of the auxiliary reaction chamber 26, the wastewater 4 flowing from the reaction chamber 14 is vortexed and aerated, and the cross-sectional shape of the case 12 of the reactor 6 is If it can be fixed without the loss of ultrasonic waves, it may be a cylindrical shape. For example, as shown in FIG. 2, it is preferable to form a polygonal structure before and after the octagonal shape that can be fixed by being in close contact with the ultrasonic vibrator 28 in a planar manner.

Fixing a plurality of ultrasonic vibrator 28, which generates 20,000Hz ~ 40,000Hz ultrasonic waves for each outer surface of the polygonal case 12, and then cover the protective case 30 to form an ultrasonic band 32, ultrasonic band 32 In consideration of the length and size of the reactor (6) is to be installed in a plurality of two or more.

Since the ultrasonic vibrator 24 is focused on the ultrasonic wave toward the center point O of the reaction chamber 14 by the polygonal case 12 structure as shown in FIG. 3, the density increases and the vibration effect is amplified toward the center, 20,000 Hz. Ultrasonic waves of ˜40,000 Hz separate the semi-molecular state while vibrating the waste water 4 violently.

Therefore, organic matter, heavy metal complexes and radicals, electrons, and anions dissolved and hydrated in the wastewater 4 escape the hydrated water seam, and the volatile organic matter (VOC) in the air As the organic matter and complex ions in the wastewater 4 are rapidly oxidized and decomposed like oxidatively decomposed in an instant, the wastewater 4 is purified cleanly.

On the other hand, the high density plasma generator 34 is installed on the case 12 of the reactor 6 so that a large amount of anions and a small amount of ozone are dissolved into the waste water 4 so that the waste water 4 can be effectively purified.

An air supply pipe 36 is provided at the inlet portion of the high-density plasma generator 34, as shown in FIG. 1, and the air supply amount of air supplied to the air supply pipe 36 at 2 to 5 atmospheres can be adjusted. ), A check valve 40 to prevent backflow of air, and an electrostatic precipitating or biodusting filter 42 to prevent impurity inflow, and the filtered air is supplied without a backflow to generate high density of anions and a small amount of ozone. To be dissolved in the waste water 4.

The high-density plasma generator 34 is installed somewhat higher from the constant surface of the wastewater 4 to maintain insulation.

4 is a cross-sectional configuration diagram of the high-density plasma generator 34, in which a housing 48 having a catching portion 44 and a large diameter vent hole 46 is inserted into and fixed to a case 12, and the housing 48 is fixed. A plurality of ceramic insulating rings 50, 52, 54, 56 are laminated in the inside of the cover, and then covered with a cover ring 60, and fixed, and a plurality of cathode tubes 72 at the stepped portions of the lower insulating ring 52. The negative electrode plate 62 to be fastened is installed, and a plurality of vent holes 64 are formed in the stepped portion of the insulating ring 56, and the positive electrode plate 66 to which the positive electrode rods 74 are fastened. The positive electrode plate 66 and the negative electrode plate 62 maintain the spacing and insulation in the housing 48.

A cathode rod 62 and a cathode plate 66 are connected to a feed line 68 and 70 to which a high voltage portion HV is connected, and an anode rod having an outer diameter relatively smaller than an inner diameter of the cathode tube 72 inside the cathode tube 72. 74), but the anode rod 74 and the cathode tube 72 is spaced apart so as not to contact each other to form a ventilation hole therebetween, the high voltage portion (HV) is a commercial power supply voltage of 3,000V ~ 25,000V After boosting with a current of several A at several μA and then supplying to the positive electrode plate 66 and the negative electrode plate 62, plasma P by corona discharge is generated.

On the other hand, the end of the anode rod 74 to form a needle-shaped plasma discharge chip 78 with a sharp tip as shown in Figure 5, the lower portion of the cathode tube 72 where the discharge chip 78 is located As shown in FIGS. 5 and 6, a plurality of discharge holes 80 are formed at narrow intervals, and the lower end portion of the cathode tube 72 protrudes slightly downward from the anode rod 74 to be positioned at the center portion of the discharge hole 80a. By generating the corona discharge up and down around the center, high density plasma (P) and high density (large amount) of anion and small amount of ozone (O ₃ ) caused by the action of the plasma can be obtained.

In this case, the efficiency is improved by 30% or more as compared with the conventional method. The discharge hole 80 may be installed in the cathode tube 72 as a whole, but the discharge efficiency may be reduced because the concentration of charge is dispersed and the discharge efficiency may be reduced. ) Is installed around the discharge chip 78 which is concentrated.

In addition, since the discharge portion 82 of the discharge hole 80 has a corner structure forming an angle of about 90 °, the discharge charges are also concentrated, and thus the corona discharge efficiency is maximized and accordingly, the plasma of high density is high. (P) is generated and is discharged as air is anionized and ozoneized by the action of plasma.

In the above, a strong corona discharge and aeration of the wastewater 4 are made by the pressurized air of 2 to 5 atm, and the discharge chip 78 having a sharp end portion has a short life due to precipitation (elution) and abrasion. Since the plasma discharge chip 78 may be formed of a conductive anti-oxidation material or coated on the surface thereof to form an oxide film, the life of the plasma discharge chip 78 may be extended.

In addition, even if discharge heat is generated by the corona discharge, a large amount of air is supplied to the vent holes 46, 64, 76 by the air pressure source (not shown), thereby preventing overheating of the anode rod 74 and the cathode tube 72. In addition, since an air pressure difference occurs between the inside and the outside of the cathode tube 72 due to the flow rate of the air flowing through the vent hole 76, the air located outside the anode rod 74 is discharged through the discharge hole 80. Since it is introduced into the inside of the anode rod 74 and the cathode tube 72 is made of heat radiation.

7 is an exploded perspective view showing another embodiment of the electrode used in the high-density plasma generator 34, in the longitudinal direction of the pyramid (square pyramid) -shaped discharge chip 84 on the outer surface of the anode rod 74 at a tight interval And circumferentially formed in the circumferential direction, and the discharge hole 86 is formed in the cathode tube 72 at the position corresponding to the discharge chip 84 1: 1, so that corona discharge is generated entirely.

Materials of the anode rod 74, the cathode tube 72, the anode plate 66, the cathode plate 62, and the discharge chips 78, 84 may be molybdenum, tungsten, nickel, platinum or nickel, molybdenum, copper, or the like. The positive electrode plate 66 and the negative electrode plate 62 to which the positive electrode rod 74 and the negative electrode tube 72 are fixed are also formed of the same material as that of the alloy having excellent heat resistance, acid resistance, and conductivity. The thermal expansion coefficient is the same while the resistance is excellent.

The high-density plasma generator 34 may be installed in one or more, as shown in Figure 8 depending on the processing capacity and the size of the reaction chamber (14).

On the other hand, the high density plasma generator 34 prevents the wastewater backflow of the reaction chamber 14 by the check valve 40, but the positive electrode 74 and the cathode tube 72 are electrically shorted by evaporated water and moisture. The dehumidifier 88 of the same type as shown in FIG. 9 may be installed.

That is, the electric heat heater 90 in which insulation is maintained is wound around the outer surface of the case 12 at the portion where the anode rod 74 and the cathode tube 72 are positioned, and the temperature switch 92 is placed on the surface of the case 12. After installation, the heat transfer heaters 90, which are powered by an unillustrated switch, are connected in series to heat the high density plasma generator 34 to 150 ° C to 300 ° C when the high density plasma generator 34 is initially operated. By removing the evaporated water and moisture that penetrates or penetrates between the anode rod 74 and the cathode tube 72 to prevent electrical short or breakdown of the high-density plasma generator 34, the electric heater 90 ) And the temperature switch 92 is wrapped in a case 94 to protect.

10 is a cross-sectional view of another embodiment of the present invention, in which an anion and ozone generated by the high-density plasma generator 34 is formed by installing an isolation tank 96 having a cylindrical or polygonal structure inside the reaction chamber 14. By dissolving with the waste water in the) portion it can effectively prevent the electrical short circuit of the high-density plasma generator 34, wherein the ultrasonic band 32 is preferably installed on the outer surface of the isolation tank (96).

In the present invention, the case 12, the case 12, the case 12 and the high-density plasma generator 34 are connected in a flange structure to repair, move, disassemble and assemble, and react with the reaction chamber 14. Drain valves 98 and 100 are installed at the lower part of the seal 26 so that they can be used when depositing or cleaning.

11 is a cross-sectional view of another embodiment of the present invention, in which a pair of electrolytic electrodes composed of a positive electrode 104 and a negative electrode 106 to which an electrolytic power source 102 is supplied is disposed inside a reaction chamber 14 to treat wastewater ( 4) can be electrolytically treated.

In the above, both the anode 104 and the cathode 106 are inert carbon electrodes, and a polarity alternating device 108 is installed in the middle of the feeder, and the electrolysis is performed while changing the polarity at regular intervals. It is possible to purify wastewater much more quickly than the continuous electrolytic purification method and apparatus (Patent No. 10-0188232).

The carbon electrode may be configured in the shape of a rod, but in a planar shape having a large surface area to improve the electrolytic efficiency.

At this time, periodically changing the polarity of the electrodes 104 and 106 using the polarity alternating device 108 in a period of 2 to 10 minutes removes the sludge in the water that adheres to the anode 104 and at the anode 104. This is to increase the electrolytic purification treatment efficiency by preventing the generated overvoltage, and in this case, the phenomenon that the sludge adheres to the electrodes 104 and 106 even by ultrasonic waves is significantly suppressed.

FIG. 12 is a view showing a structure in which the electrolytic electrodes 104 and 106 fixed to the case 12 can be fixed while being insulated.

That is, a through hole is formed in the case 12, and then the nut 110 is brought into contact with the outer surface to be welded in a watertight manner, and the o-ring 112 is fitted to the nut 110 and the flange portion 114 is formed therein. The insulating nut 116 of the same material as the light is fastened so that the watertightness is maintained between the nut 110 and the insulating nut 116, and the carbon electrolytic electrodes 104 and 106 are disposed in the inner hole of the insulating nut 116. Insert the screw rod 120 is fastened and the O-ring 118 is coupled to the outer surface, the feed washer 122 is inserted into the outer surface of the screw rod 120 protruding outward and then fastened with a nut 124 to the carbon electrolytic electrode (104) (106) is fixed to be kept watertight.

In this case, the insulating distance is maintained between the case 12 and the carbon electrolytic electrodes 104 and 106 to prevent the undesired discharge, and the nuts 110 and the flange portions directly contacting the O-rings 112 and 118. (114), the carbon electrolytic electrodes 104, 106, the insulating nut 116 is formed in each of the mounting grooves into which a portion of the O-rings 112, 118 can be inserted to tighten the nut (124) O-ring ( To prevent the misalignment or deviation of the 112, 114.

13 is a perspective view illustrating another embodiment of the preliminary digestion tank 58 of the present invention, in which a sludge removal device, an ultrasonic vibration device, and a bubbling device are installed to incline sludge or foam floating when the wastewater 4 is purified. The scraper 126 can be easily removed, and a plurality of ultrasonic vibrators 128 are fixed to the inner wall of the preliminary digestion tank 58 so that the wastewater 4 can be vibrated, and the preliminary digestion tank ( 58 is installed at the bottom of the bubbling device 130 to supply anion and ozone to the waste water (4).

In the case of the sludge removal apparatus, as shown in FIG. 13, a pair of chain gears 132, 134, 136 and 138 are arranged on both sides of the upper part of the preliminary digester 58, and the shaft 140, 142 and the shaft bearing 144. After installing the shaft to the chain (146) (148) by hanging the parallel to the end, one side of the shaft 142 by connecting the rotating shaft of the reduction motor 150 to the chain 146 (148) to rotate the interlocking The chain attachments 154 and 156 fixed to both ends of the connecting rods 152 are fixed to the inner surfaces of the chains 146 and 148 so as to circulate and rotate along the chains 146 and 148 and the connecting rods 152. 14, the sludge 126 of the light and durable chemical resistant material is fixed to the slant to move the sludge 160 or foam floating on the constant surface 158 of the preliminary digestion tank 58 to the sludge settling tank 162. It was made possible.

In the above, the scraper 126 is fixed to the chain attachments 154 and 156 so as to enter the wastewater 4 when located in the lower chain to move the sludge and foam to the sludge settling tank 162 while moving along the chain. When it is located in the upper chain, it moves in the air so that sludge or foam does not move in the reverse direction.

The bubbling device 130 is installed at the bottom of the preliminary disassembly tank 58, the pipe body 166 is formed at both sides and the upper surface of the injection hole 164 with a narrow gap, and an air supply fan at the end of the connecting pipe 168. 170 and an ozone generator 172 are installed to allow oxygen and ozone to bubble into the wastewater 4.

15 and 16 are dense configurations of the continuous high-density plasma wastewater treatment apparatus 174 shown in another embodiment of the present invention. Instead of deleting the reactor 2, the chain rotated by the reduction motor 150 as shown in FIG. 13. 146, 148, a preliminary digestion tank 58 in which a sludge removal apparatus for removing sludge is installed by the scraper 126 structure moving along the chain 146, 148, and a high density plasma as shown in FIG. An exhaust port 176 of the generator 34 is supplied and installed, and has a pair of upper and lower ultrasonic bands 178 and 180, an electrolytic power source 182, and a pair of polarity alternating devices 184 and 186. Bubbling device 200 having primary and secondary digestion tanks 2 and 2a on which electrodes 188, 190, 192 and 194 are installed, a coagulant automatic injector 196 and an air supply fan 198. So that the pH storage tank 210 having the coagulation tank 202, the acid or alkali inlet tank 204, the drain valve 206, and the discharge pipe 208 is installed in the unit cell (room). In addition, the preliminary digestion tank 58, the primary and secondary digestion tanks (2) (2a), the coagulation tank (202), and the pH storage tank (210) are each connected to the bent drainage pipes (212) (214) (216) (218). The wastewater 4 is moved to a cell located next to it, thereby reducing the production cost and occupying the minimum space. In addition, the device is a continuous high density plasma wastewater treatment device capable of continuously treating wastewater. Wastewater treatment effect is very high and automation is possible than conventional bad type device.

A plurality of primary and secondary disassembling tanks (2) (2a) are circumscribed to the lower end of the cell (about 300 mm to 500 mm from the bottom) and the upper part of the cell (about 300 mm to 500 mm down from the top of the cell). Ultrasonic bands 178, 180 consisting of two ultrasonic vibrators and protective cases are installed in two rows, and a pair of carbon electrodes 188, 190, 192, 194 are disposed at the center thereof, and an electrode alternating device is provided. An electrolytic device having (184) (186) is provided.

In addition, an appropriate amount of an inorganic flocculant (aluminum sulfate, ferric chloride, PAC) and an organic flocculant (anionic or cationic organic flocculant) is added to the flocculation tank 202, and the pressure flotation is carried out using the air supply fan 198. In such a manner as to install a sludge removal device to remove the sludge by the scraper 126 to remove the sludge.

In addition, the sludge removal device, the ultrasonic vibrator and the bubbling device is installed in the coagulation tank 202 so that the sludge can be easily removed by the inclined scraper 126 when the wastewater 4 is purified.

In the case of the sludge removal apparatus, as shown in FIG. 13, a pair of chain gears 132, 134, 136 and 138 are arranged on both sides of the upper part of the preliminary digester 58, and the shaft 140, 142 and the shaft bearing 144. After installing the shaft to the chain (146) (148) by hanging the parallel to the end, one side of the shaft 142 by connecting the rotating shaft of the reduction motor 150 to the chain 146 (148) to rotate the interlocking The chain attachments 154 and 156 fixed to both ends of the connecting rods 152 are fixed to the inner surfaces of the chains 146 and 148 so as to circulate and rotate along the chains 146 and 148 and the connecting rods 152. As shown in FIG. 14, the sludge 126 of the chemically resistant and light-resistant material is inclined to move the sludge 160 or foam floating on the constant surface 158 of the preliminary digestion tank 58 to the sludge settling tank 162. It was made possible.

In the above, the scraper 126 is fixed to the chain attachments 154 and 156 so as to enter the wastewater 4 when located in the lower chain to move the sludge and foam to the sludge settling tank 162 while moving along the chain. When it is located in the upper chain, it is lifted by the air so that floating sludge or foam does not move in the reverse direction.

The bubbling device 130 is installed in the bottom of the preliminary digestion tank 58, the pipe 166 formed with a narrow spaced injection hole 164 on both sides and the top surface, the air supply fan and air at the end of the connecting pipe body By bubbling in (4), it is possible to remove the pressure-floating sludge with the scraper 126.

In addition, pH-adjusting tank 210, the Adjust the pH using an acid _{(HCℓ, H 2 SO 4)} , alkali (sodium hydroxide NaOH) in 7-8. The treated water is transferred to the microbial reaction tank through the discharge pipe 208, and then discharged.

In FIG. 15, FIG. 16, the sludge removal apparatus which has the scraper 126 is provided in the preliminary | decomposition tank 58 and the coagulation tank 202. As shown in FIG.

Therefore, in order to effectively remove the sludge or foam using the scraper 126, the water level control must be accurate.

Therefore, the preliminary digestion tank 58 and the coagulation tank 202 are installed in the bend-type drain pipes 212 and 218 of the preliminary digestion tank 58 and the coagulation tank 202, as shown in FIG. ), The water level can be precisely adjusted according to the sludge condition and height.

As for the water level control device 220, the drain pipe 224 opened upward to the outlet 222 of the preliminary digestion tank 58 and the coagulation tank 202 as shown in FIG. The water collecting pipe 226 which is raised more than the drain pipe 224 is installed on the outside, the first decomposition tank 2 and the pH reservoir 210 in one lower portion of the water collecting pipe 226 open to the upper The outlet pipes 212 and 218 are connected.

One or more O-rings 228 and the water level control pipe 230 are loosely installed in the drain pipe 224 so that the water level control pipe 230 can be elevated, and positioned between the drain pipe 224 and the water level control pipe 230 ( 228 maintains watertightness.

Three upper and lower support rods 232 are fixed to the upper part of the water level control tube 230, and a screw rod 236 having a handle 234 is fixed to an upper surface of the support rod 232, and the screw rods 236 are fixed. Is screwed to the nut 240 is fixed to the connecting rod 238 to the collecting pipe 226 or other fixing means, so that the rise or fall of the water level control pipe 230 is achieved according to the rotation direction of the handle 234 The water level of the preliminary digestion tank 58 and the flocculation tank 202 provided with the sludge removal apparatus can be adjusted precisely.

19 is a wastewater treatment flow chart of the ultrasonically coupled high density plasma wastewater treatment apparatus. Here, the preliminary decomposition tank is attached with an ozone generator, an ultrasonic generator and a scraper 126.

In this preliminary decomposition tank, as mentioned above, organic compounds, heavy metal complex ions and ozone molecules dissolved in the waste water by ultrasonic are removed from the hydration layer and activated at a high energy state. Thus, organic molecules and complex ion oxidation by ozone are activated. Due to the large decomposing effect, COD, BOD, SS, TN, TP reduction rate of landfill leachate and high concentration livestock wastewater is good and decolorization and deodorization effect is very high.

Since the sludge is removed by the scraper 126, the reduction rate of SS generated by the aggregation of the preceding molecular decomposition residues is also large. The primary digester has the same effect as the preliminary digester because it is attached with an anion generator and an ultrasonic generator, but the only difference is that the anion including radicals oxidize and decompose organic matter and complex ions in the wastewater.

Unlike the preliminary digestion tank, sludge produced in the primary digestion tank is coagulated or precipitated with an inorganic flocculant such as aluminum sulfate, ferric chloride, PAC, or an ionic organic flocculant. The secondary digestion tank has the same structure as the primary digestion tank. Therefore, the function of the secondary digestion tank is the same as that of the primary digestion tank, but its purpose is to increase the wastewater treatment efficiency by repeating the same decomposition process once more.

During the first and second digestion tanks, 70% to 90% or more of phenol, its derivatives, and heavy metal ions, which are extremely harmful to microorganisms contained in high concentration leachate or livestock wastewater, are removed, thus removing acids and alkalis such as hydrochloric acid and caustic soda. The pH is adjusted to 7-8 in the pH control tank to be injected, and then the high-density microbial reaction tank in which high-density microorganisms are grafted to the high-porous media shows 95% or more purification effect.

Chemicals used in the primary sedimentation tank are added to the treated water that has passed through the high-density microbial reaction tank. After precipitation, SS is adsorbed in the activated carbon adsorption tank and the next step is a hollow fiber membrane filter or RO (reverse osmosis) ultrafiltration. The ultimate purpose is to treat and reuse the wastewater, so that it is possible to so-called undischarged wastewater treatment that only replenishes evaporated or lost water and does not discharge the wastewater at all.

FIG. 20 omits the secondary decomposition tank in the flow chart of FIG. 19 and replaces the high-density microbial reactor with the general microbial reactor, to discharge the treated water passing through the activated carbon adsorption tank. In this case, the water quality of the discharged water is very good and it becomes colorless, odorless and denitrification (denitrification) and discharged water with dephosphorization of 95% or more.

The present invention is the most effective physicochemical wastewater treatment method up to now in the pre-treatment of high-density microbial treatment and general microbial treatment in Figure 19 and 20, the test results are shown in Table 1 below.

Table 1 Livestock Wastewater Pilot Test Results Table

(Unit: mg / l)

Category Item C O D B O D S S (Total nitrogen) T-N (Total-in) T-P enemy 9,875.0 7,520.8 23,505.0 2,475.0 185.2 Pre-decomposition water 977.6 3,008.3 1,104.7 1,064.3 9.4 Removal rate (%) 90.1 60.0 95.3 57.0 94.9 1st decomposition water 404.9 473.8 517.1 740.0 4.1 Removal rate (%) 95.9 93.7 97.8 70.1 97.8 Secondary decomposition treatment water 167.9 293.3 117.5 49.1 0.9 Removal rate (%) 98.3 96.1 99.5 80.2 99.5

As shown in Table 1, the removal rate after preliminary treatment of leachate having COD = 9,875.0ppm, BOD = 7,520.8ppm, SS = 23,505.0ppm, TN = 2,475.0ppm, TP = 185.2ppm was COD = 90.1%, BOD = 60.0% , SS = 95.3%, TN = 57.0%, TP = 94.9%.

However, except for the 70.1% removal rate of T-N from the primary cracked treated water, the data from the water treatment items ranged from 93.7% to 97.8%. However, except for T-N = 80.2%, the removal rate of the secondary cracked water exceeds 96%.

T-N = 80.2% is the highest removal rate of all wastewater treatments to date. Here we demonstrate the advantages and superiority of the ultrasonically coupled high density plasma wastewater treatment method. In addition, the device has the advantage of being very simple to operate and unaffected by seasonal temperatures.

On the other hand, while mixing the anion and ozone containing radicals and electrons generated from the high density plasma generator 34 into the wastewater, using the ultrasonic wave of 20,000Hz to 40,000Hz, micromixing the wastewater 4 to the molecular level. (Micro mixing) leaves organic and heavy metal complex ions, radicals, electrons and anions hydrated in the waste water out of the hydration seath.

Therefore, organic matter or complex ions are rapidly oxidatively decomposed in water as if volatile organic matter (VOC) is rapidly oxidatively decomposed by anion in the air. The breakdown of the hydration layer makes it possible to cause a gas-like reaction in water and at the same time activate organic matter, complex ions, anions and electrons in the water to a higher energy state.

Under these conditions, both the positive electrode and the negative electrode are inert carbon electrodes, and electrolysis is performed by changing the polarity at a predetermined time, and the present inventors invented the "industrial wastewater continuous electrolytic purification treatment method and apparatus thereof (Patent 10-0188232). Wastewater can be cleaned up much more quickly.

At this time, the alternating polarity is to increase the electrolytic purification treatment efficiency by preventing overvoltage generated at the anode by removing the sludge stuck to the anode among the sludge dispersed in the water.

Such wastewater treatment is the most suitable and most economical method for advanced wastewater purification because it shows special effects on the removal of COD, BOD, SS, as well as denitrification, dephosphorization, decolorization and deodorization.

In the present invention, if the high purification treatment is to be connected in series with a plurality of wastewater treatment device, if you want to increase the treatment capacity may be connected in parallel to the wastewater treatment device.

In addition, when the waste water 4 is to be treated continuously, A and B waste water treatment devices are connected in parallel, and when the A waste water treatment device is operated, the B waste water treatment device discharges the treated waste water 4 and On the contrary, when the B wastewater treatment system is operated, when the A wastewater treatment system is alternately operated by discharging the treated wastewater 4, the wastewater 4 can be continuously treated, thereby doubling the wastewater 4 purification capacity. You can.

As described above, the present invention is capable of bubbling anion and ozone containing radicals and electrons into various wastewaters such as industrial wastewater, livestock wastewater, and domestic wastewater, such as dyeing wastewater, leather wastewater, petrochemical wastewater, and paper wastewater. Micro mixing at the molecular level that vibrates violently with ultrasonic waves at Hz to hydrate organic or heavy metal complex ions and radicals, electrons, and anions that are dissolved and hydrated in waste water. As volatile organic matter (VOC) is rapidly oxidized and decomposed in air by anion, it quickly cleanses and decomposes organic matter and complex ions in water, thereby causing various environmental pollutions caused by discharged wastewater. There is an effect that can be significantly reduced.

Claims (20)

While mixing anions and ozone containing radicals and electrons in various wastewaters, micro-mixing them to the molecular level that vibrated violently with ultrasonic waves of 20,000Hz to 40,000Hz, resulting in organic or heavy metal complex ions in the wastewater. ) Radicals, radicals, electrons, and negative ions out of the hydration seath, quickly oxidizing organic matters or complex ions in water, just as volatile organic matter (VOC) in the air is rapidly oxidatively decomposed by negative ions. Ultrasonic coupled high density plasma wastewater treatment method for decomposition and purification. A reactor for installing a wastewater feedwater pipe (8) having a valve and a wastewater discharge pipe (10) having a valve on both sides and treating the wastewater with a desalination tank (2) for desalination and the wastewater (4) of the decomposing tank (2) 6), the reactor (6) comprises a reaction chamber for purifying the waste water (4), a circulating device for circulating the waste water (4) into the decomposition tank (2) and the reaction chamber, and the waste water (4) by vibrating ultrasonically. Ultrasonic-coupled high-density plasma wastewater treatment apparatus characterized in that it comprises a ultrasonic vibrating device and a high-density plasma generator for dissolving anion and ozone in the wastewater (4). 3. The ultrasonic coupled high density plasma wastewater treatment apparatus according to claim 2, wherein an electrolytic electrode having periodic polarity is alternately installed in the reaction chamber of the reactor (6). Claim 4 was abandoned upon payment of a set-up registration fee. 4. The inlet pipe 16 and the outlet pipe 18 are made of synthetic resin to prevent the destruction of anions and ozone or to shorten the life of the inlet pipe 16, and the inlet pipe 16 has a filter 20 and a pump. (22) is installed so that the wastewater (4) of the digestion tank (2) is filtered and then introduced into the reaction chamber (14) by the pump (22) to circulate while purifying, and at the inlet of the reaction chamber (12). Ultrasonic coupled high-density plasma wastewater treatment apparatus characterized in that the waste water (4) is introduced by fixing the plurality of inclined plates (22). Claim 5 was abandoned upon payment of a set-up fee. 4. The reaction chamber (14) according to claim 2 or 3, wherein an auxiliary reaction chamber (26) of smaller size than the reaction chamber (12) is formed between the outlet (24) of the reactor (6) and the outlet pipe (16). Ultrasonic combined high-density plasma wastewater treatment apparatus characterized in that the purified wastewater (4) in the stagnant in the auxiliary reaction chamber (26) can be sufficiently purified. The ultrasonic wave according to claim 2 or 3, wherein the cross section of the reactor 6 casing 12 is formed in a polygonal structure, and the plurality of ultrasonic vibrators 28 are fixed on each outer surface of the polygon casing and then covered with the protective case 30. Ultrasonic coupled high-density plasma wastewater treatment apparatus characterized in that the ultrasonic wave is concentrated to the center point (O) of the reaction chamber 14 by configuring the band (32). Claim 7 was abandoned upon payment of a set-up registration fee. 4. The check valve (40) according to claim 2 or 3, further comprising: a check valve (40) for preventing backflow of air to the air supply pipe (36) of the high-density plasma generator (34) installed above the case (12) of the reactor (6); Ultrasonic coupled high-density plasma wastewater treatment apparatus characterized in that a dust collecting filter (42) to prevent the introduction of impurities to dissolve a large amount of negative ions and a small amount of ozone into the waste water (4). Claim 8 has been abandoned upon payment of a registration fee. The housing 48 having the locking portion 44 and the large-diameter vent hole 46 is fixed to the case 12, and a plurality of ceramics are provided inside the housing 48. Insulating rings 50, 52, 54, and 56 are laminated, and then covered with a cover ring 60 to fix them, and a cathode plate 62 in which a plurality of cathode tubes 72 are fastened to the stepped portions of the lower insulating ring 52. ), A plurality of vent holes 64 are formed in the stepped portion of the other insulating ring 56, and a cathode plate 66 in which a plurality of anode rods 74 are fastened is installed. ) And the positive electrode plate 66 are connected to the feed lines 68 and 70 to which the high voltage portion (HV) is connected, and the positive electrode rod 74 having an outer diameter relatively smaller than the inner diameter of the cathode tube 72 is connected to the inside of the cathode tube 72. A vent hole 76 is formed between the pins, a needle-shaped plasma discharge chip 78 is formed at the end of the anode rod 74, and a plurality of holes are provided in the lower portion of the cathode tube 72 in which the discharge chip 78 is located. Of ultrasonic bonding to the discharge holes 80, characterized in that the ice formed around the narrow high-density plasma gap waste water treatment apparatus. 4. The discharge chip 84 according to claim 2 or 3, wherein a pyramid-shaped discharge chip 84 is formed on the outer surface of the anode rod 74 in the longitudinal direction and the circumferential direction at close intervals. Ultrasonic coupled high density plasma wastewater treatment apparatus, characterized in that to form a discharge hole (86) in the cathode tube 72 at a position corresponding to 1: 1) so that corona discharge occurs entirely. Claim 10 was abandoned upon payment of a set-up fee. The ultrasonic coupled high density plasma wastewater treatment apparatus according to claim 2 or 3, characterized in that a dehumidifier (88) is formed by an electrothermal heater (90) on an outer surface of the high density plasma generator (34). Claim 11 was abandoned upon payment of a set-up fee. The method according to claim 10, wherein the heat transfer heater 90 is insulated around the outer surface of the case 12 at the portion where the anode rod 74 and the cathode tube 72 are positioned, and the temperature switch is placed on the surface of the case 12. Ultrasonic coupled high-density plasma wastewater, characterized in that after the installation of the 92, the heat transfer heaters 90 are connected in series so that the high-density plasma generator 34 can be dehumidified by heating to 150 ° C to 300 ° C. Processing unit. Claim 12 was abandoned upon payment of a set-up fee. The method according to claim 2 or 3, wherein a pair of one or more electrolytic electrodes composed of a positive electrode 104 and a negative electrode 106 to which the electrolytic power source 102 is supplied is provided inside the reaction chamber 14, Ultrasonic coupled high-density plasma wastewater treatment apparatus, characterized in that the polarity alternating device 108 is installed in the periodically alternating polarity. Claim 13 was abandoned upon payment of a set-up fee. The insulating nut 116 of claim 12, wherein the nut 110 is welded to the outer surface of the case 12 in a watertight manner, and the o-ring 112 is fitted to the nut 110 and the flange 114 is formed. The watertightness is maintained between the nut 110 and the insulating nut 116 to be fastened, and the carbon rods 104 and 106 are fastened to the inner through holes of the insulating nut 116 and the O-ring 118 is fitted with a screw rod ( 120, the feed washer 122 is inserted into the outer surface of the screw rod 120 and then fastened with a nut 124 to secure the watertightness of the carbon electrolytic electrodes 104 and 106, and the case 12 and Ultrasonic coupled high density plasma wastewater treatment apparatus, characterized in that to prevent the undesired discharge by maintaining an insulating distance between the carbon electrode (104) (106). The sludge removal device, the ultrasonic vibration device, and the bubbling device are installed on the upper part of the preliminary digestion tank 2, and the sludge or foam floating during the purification process of the wastewater 4 is removable. The scraper 126 is removed, the plurality of ultrasonic vibrators 128 are fixed to the inner wall of the decomposition tank 2 to vibrate the wastewater 4, and the bubbling device 130 is placed at the bottom of the decomposition tank 2. Ultrasonic coupled high density plasma wastewater treatment apparatus, characterized in that the installation. Claim 15 was abandoned upon payment of a set-up fee. 15. The sludge removal apparatus of claim 14, wherein a pair of chain gears 132, 134, 136, 138 is installed on both sides of the upper part of the preliminary digester 2, and then the shafts 140, 142 are mounted. Hook the chain gears to be parallel, and connect the rotary shaft of the reduction motor 150 to the end of one shaft 142 so that the chain 146, 148 rotates interlocked, and the inner surface of the chain 146, 148 Sludge that floats on the constant surface 158 of the digestion tank 2 by fixing the chain attachments 154 and 156 on which both ends of the connecting rod 152 are fixed and inclinedly fixing the scraper 126 to the connecting rod 152 ( Ultrasonically coupled high density plasma wastewater treatment apparatus characterized in that the dissolution characterized in that it is possible to move 160 or the like to the sludge storage tank (162). 4. The structure according to claim 2 or 3, wherein a preliminary digestion tank provided with an ozone generator, an ultrasonic generator and a scraper, a primary digestion tank to which the anion generator and the ultrasonic generator are attached, a precipitation tank having chemical injection means, and a primary digestion tank A secondary digestion tank, a pH adjusting tank having acid and alkali injecting means, a high density microbial reaction tank, a settling tank having a precipitating agent, activated carbon adsorption tank, hollow fiber membrane filter and / or reverse osmosis (RO) filter Ultrasonic combined high-density plasma wastewater treatment apparatus characterized in that the wastewater can be discharged. Claim 17 was abandoned upon payment of a set-up fee. The ultrasonic coupled high density plasma wastewater treatment apparatus according to claim 16, wherein the secondary decomposition tank is omitted, and the high density microbial reactor is replaced with a general microbial reactor, and the treated water is discharged through the activated carbon adsorption tank. Claim 18 was abandoned upon payment of a set-up fee. Sludge from which sludge is removed by the chain 146, 148 rotating by the reduction motor 150, and the scraper 126 moving along the chain 146, 148 in the upper part of the preliminary digestion tank 58. Electrolysis power supply 182 and high-density plasma generation having a removal device and having a pair of upper and lower ultrasonic bands 178 and 180 and a polarity alternating device 184 and 186 inside the preliminary digester 58. The exhaust port 176 of the apparatus 34 is installed and installed, and the primary and secondary decomposition tanks 2 and 2a, in which a pair of electrolytic electrodes 188, 190, 192, 194 are provided, and a coagulant injector. Agglomeration tank 202 provided with a bubbling device 200 having a 196 and a sludge removal device and an air supply fan 198, an acid / alkali injection tank 204, a drain valve 206, and a discharge pipe 208 The pH storage tank 210 having a single structure is divided into cells (rooms), and the preliminary digestion tank 58, the primary and secondary digestion tanks 2, 2a, the coagulation tank 202, and the pH storage tank 210 are Bent drain pipes 212,214,216 and 218 Ultrasonic coupled high-density plasma wastewater treatment apparatus characterized in that it is moved to the cell located next to be used as a pretreatment device for microbial wastewater treatment. Claim 19 was abandoned upon payment of a set-up fee. 19. The water level of the preliminary digestion tank 58 and the coagulation tank 202 is provided by installing a water level adjusting device 220 in the preliminary digestion tank 58 and the drain pipes 212 and 218 of the coagulation tank 202. Ultrasonic coupled high-density plasma wastewater treatment apparatus characterized in that it can be precisely adjusted according to the state and height of the sludge. Claim 20 was abandoned upon payment of a set-up fee. According to claim 19 or 19, the water level control device 220 is installed in the preliminary digestion tank 58 and the outlet 222 of the flocculation tank 202, the drain pipe 224 open to the top, the drain pipe A water collecting pipe 226 is installed on the outside of the drain pipe 224 to the outside of the 224, and the primary decomposition tank 2 and the pH reservoir 210 in one lower portion of the water collecting pipe 226 Connect the water outlet pipes (212, 218), coupled to lift the water level control pipe 230, the one or more O-rings (228) fitted inside the drain pipe (224), A screw rod 236 having a support rod 232 and a handle 234 at the top thereof is fixed, and the screw rod 236 is screwed to a nut 240 fixed to the fixing means, according to the rotation direction of the handle 234. Ultrasonic coupled high-density plasma wastewater, characterized in that the water level control pipe 230 to adjust the level of the preliminary digestion tank 58 and the flocculation tank 202 precisely by rising or falling Lee device.