KR102300297B1 - Water treatment device using plasma and ozone microbubbles and water treatment method using the same - Google Patents

Abstract

The present invention relates to a water treatment apparatus using plasma and ozone microbubbles and a water treatment method using the same, and more particularly, to a water storage tank having a water storage space part for containing raw water by opening upward therein, and a water storage space part of the water storage tank. A raw water supply unit for supplying raw water, a concentrate discharge unit for discharging the floating fine particles in the raw water of the water storage tank, a treated water discharge unit for discharging the treated water separated from the fine particles in the raw water of the storage tank, the water storage tank An ozone microbubble supply unit for generating ozone microbubbles and supplying them to the water storage space using the treated water and ozone gas, a plasma generating unit for discharging plasma to the water storage space of the water storage tank, and located above the water storage tank However, it includes a scraping unit for separating and discharging the sludge floated by the moving scraper by moving it to the concentrate discharge unit.
According to the present invention as described above, it is possible to improve the separation efficiency of the sludge by mixing the supplied ozone microbubbles with the raw water, to separately discharge the separated sludge, as well as to sterilize and disinfect, thereby improving the working efficiency. have.

Description

Water treatment device using plasma and ozone microbubbles and water treatment method using the same

The present invention relates to a water treatment apparatus and a water treatment method, and more particularly, plasma and ozone microbubbles capable of improving work efficiency by supplying ozone microbubbles and raw water, but levitating and separating fine particles by mixing them, and discharging them separately It relates to a water treatment apparatus using the same and a water treatment method using the same.

In general, wastewater treatment refers to the removal of foreign substances present in the dissolved and particulate state in raw water, and by solidifying the foreign substances by various methods such as chemicals and microorganisms and separating the solidified foreign substances using a physical method, the treated water and It refers to the process of separating into sludge.

As a method of this wastewater treatment process, a pressure flotation method is used to improve the disadvantages of the precipitation method used previously.

The principle of this pressurized flotation is that air is dissolved in raw water at atmospheric pressure and exists as dissolved oxygen. It exists in the original water as a state.

In this state, when the pressure is lowered to atmospheric pressure, the air that was in the molecular state in the water is released back into the atmosphere.

When pressurized water is supplied to the raw water using this, the fine air of the pressurized water and the coagulated sludge coagulate, and the sludge has buoyancy, so that it floats on the water, and the floating sludge is removed.

Looking at the conventional pressurized flotation tank, as disclosed in Patent Registration No. 10-0797197, ozone microbubbles are generated by air spraying in wastewater (raw water) to activate the separation of floating foreign substances, and the floating sludge is transferred to the scraping device. is expelled by

However, when air bubbles are generated by simply spraying air, it is difficult to generate ozone microbubbles and thus the efficiency is lowered, which leads to a decrease in the overall separation efficiency.

Accordingly, as ozone microbubbles are uniformly and effectively generated and supplied, the development of a technology capable of effectively separating fine particles from raw water is urgently required.

Accordingly, the present invention has been devised to solve the above problems, and is a storage tank having a storage space part for storing raw water by opening upward therein, a raw water supply part for supplying raw water to the storage space part of the storage tank, Concentrate discharge part for discharging the fine particles floating in the raw water of the storage tank, the treated water discharge part for discharging the treated water separated from the fine particles in the raw water of the storage tank, ozone fine using the treated water of the storage tank An ozone microbubble supply unit for generating bubbles and supplying them to the water storage space, a plasma generating unit for discharging plasma to the water storage space of the water storage tank, and a sludge located above the water storage tank and floated by the moving scraper By mixing the supplied ozone microbubbles with raw water, including a scraping unit that moves to the concentrate discharge unit and separates and discharges, the sludge separation efficiency is improved, and the separated sludge can be discharged separately, as well as sterilization and disinfection. An object of the present invention is to provide a water treatment apparatus using plasma and ozone microbubbles, which can improve work efficiency, and a water treatment method using the same.

The present invention for achieving the above object is a water storage tank having a water storage space part open upward to contain raw water, a raw water supply part for supplying raw water to the storage space part of the water storage tank, and floating in the raw water of the water storage tank. Concentrate discharge unit for discharging fine particles, treated water discharging unit for discharging treated water separated from fine particles in the raw water of the storage tank, and generating ozone microbubbles using the treated water and ozone gas of the storage tank to store water An ozone microbubble supply unit for supplying to the space, a plasma generating unit for discharging plasma to the water storage space of the water storage tank, and a sludge located above the water storage tank, floating by a moving scraper, is moved to the concentrate discharge unit and a scraping unit for separating and discharging.

Preferably, the water storage space of the water storage tank includes a mixing space for mixing the raw water supplied from the raw water supply unit and the ozone fine bubbles supplied from the ozone microbubble supply unit, and the raw water and ozone fine bubbles mixed in the mixing space unit. is moved, a floating space in which ozone microbubbles and attached fine particles are floated and separated; It includes a first partition wall for, and a second partition wall for partitioning the floating space portion and the separation space portion.

In addition, the first partition wall and the second partition wall are formed such that the upper end of the corresponding space communicates with each other.

In addition, the upper end of the first partition wall is formed to be inclined toward the floating space portion.

And the upper end of the first partition wall is formed at 30 to 60 degrees, preferably 45 degrees.

In addition, the upper end of the second barrier rib is located below the upper end of the first barrier rib.

And the lower end of the second bulkhead, at least one or more treated water communication communicating with the lower end of the floating space portion and the lower end of the separation space is formed.

In addition, the area of the treated water communication channel is formed smaller than the area connected to the upper end of the second bulkhead and is 5 to 30% of the amount of the treated water moving through the upper end communicating part of the second bulkhead.

In addition, the raw water supply unit includes a raw water supply pipe provided to supply raw water to the lower end of the mixing space, a raw water pump for supplying raw water through the raw water supply pipe, and measuring the amount of raw water introduced through the raw water supply pipe a flow sensor for, and a raw water supply control unit configured to receive a signal from the flow sensor to control the raw water pump.

The ozone microbubble supply unit includes an ozone microbubble pump for mixing the supplied treated water and ozone gas to form an ozone mixed liquid, and a treated water supply pipe for supplying the treated water from the separation space to the ozone microbubble pump. , an air supply unit for supplying air to the ozone fine bubble pump, an ozone gas supply unit for supplying ozone gas to the ozone fine bubble pump, and ozone for supplying the ozone mixture liquid formed by the ozone fine bubble pump to the mixing space unit A mixed liquid supply pipe, a pressure sensor for measuring the pressure of the ozone mixed liquid moving along the ozone mixed liquid supply pipe, and an ozone fine bubble control unit for receiving a signal from the pressure sensor and controlling the ozone fine bubble pump; The ozone mixed liquid mixed with the air supplied from the air supply unit and the ozone gas supplied from the ozone gas supply unit by supplying treated water through the treated water supply pipe by the ozone microbubble pump through the ozone mixed liquid supply pipe. When supplied to the ozone mixing space, it is transformed to atmospheric pressure and ozone microbubbles are generated.

In addition, the ozone microbubble pump includes a pump body having a rotating space formed therein, a pump inlet formed in the pump body for supplying treated water, air, and ozone gas to the rotating space, and ozone mixing formed in the rotating space. It includes a pump outlet for supplying liquid to the mixed liquid supply pipe, and an impeller that has double blades and is rotatably provided in the rotational space of the pump body.

And the area of the pump inlet is formed larger than the area of the pump outlet.

In addition, the area of the pump inlet is formed to be 1 to 4 times the area of the pump outlet.

And the double wings, a plurality of first wings formed at regular intervals along the edge of one surface of the impeller, a plurality of second wings formed at regular intervals along the edge of the other surface of the impeller, are respectively formed between the plurality of first blades A first mixing path for mixing the treated water and gas introduced through the pump inlet is guided and mixed, and each formed between the plurality of second wings to guide and mix the treated water and gas flowing in through the pump inlet a second mixing furnace to be

In addition, the first wing is positioned between the two adjacent second wing.

And the first blade and the second blade are formed to be orthogonal to the corresponding surface of the impeller.

In addition, the first and second wings are each formed in 40 to 100 pieces.

And the ozone microbubble pump is rotated at 1,900 ~ 3,600 rpm, the treated water introduced through the treated water supply pipe is 10 to 60 wt% of the treated water of the separation space, and the amount of gas supplied from the gas supply is the It is 0.5 to 4% of the treated water flowing in through the treated water supply pipe.

In addition, it is transformed to atmospheric pressure in the mixing space, and the ozone microbubbles are 10 ~ 75㎛.

and a pipe mixing unit for mixing the ozone mixed liquid moving along the mixed liquid supply pipe in a spiral manner.

In addition, the pipe mixing unit, a pipe mixing body provided to communicate with the mixed liquid supply pipe, and a pipe mixing screw for tertiary mixing by spirally guiding the ozone mixed liquid provided inside the pipe mixing body to be transported, includes

And the plasma generating unit is provided in the water storage space of the water storage tank, a plasma discharge unit for discharging plasma, a plasma power unit for supplying power to the plasma discharge unit, and the plasma power unit and the plasma discharge unit to control the amount of plasma generated It includes a plasma control unit for controlling the.

In addition, the plasma discharge unit includes a dielectric tube provided in the mixing space, a discharge electrode positioned inside the dielectric tube, and a counter electrode provided outside the dielectric tube to correspond to the discharge electrode.

and a gas injection unit for maintaining the internal gas pressure of the dielectric tube.

In addition, the gas injection unit, a gas pump for supplying gas to the inside of the dielectric tube, a dielectric tube pressure sensor for measuring the internal pressure of the dielectric tube, and receives a signal from the dielectric tube pressure sensor to operate the gas pump and a gas control unit for controlling the internal pressure of the dielectric tube.

And the plasma power supply unit supplies high voltage power.

In addition, the dielectric tube, a circular tube, is formed of any one selected from a quartz tube, a glass tube, and a ceramic tube.

And the discharge electrode is formed in a coil shape.

In addition, the scraping unit may include a first rotating unit rotatably provided on the upper rear side of the separation space of the water storage tank, a second rotating unit rotatably provided above the front end of the floating space of the water storage tank, and the second rotating unit A connecting member for rotating the first rotating part and the second rotating part in an endless orbit in the same direction, a scraper provided on the connecting member to scrape fine particles floating in the water storage space of the water storage tank as they rotate in the same way; and a driving unit for rotating the first rotating part or the second rotating part to rotate the connecting member and the scraper in an endless orbit.

And after discharging the levitated fine particles to the concentrate discharge unit, a scraping washing unit provided at the upper end of the concentrate discharge unit to scrape the surface of the scraper rotated upward along the first rotating unit, include

In addition, the scraping cleaning unit has elasticity, and is formed to be inclined downward from the upper end of the concentrate discharge unit toward the first rotating unit.

And it further includes a treatment tank for storing the treated water discharged through the treated water discharge unit, the treated water stored in the treated water tank is transferred to the wastewater treatment plant.

In addition, a raw water tank in which the concentrate discharged through the concentrate discharge unit is stored, an acid fermentation tank in which the concentrated liquid stored in the raw water tank is stored and fermented, a grinding unit for pulverizing the concentrate transferred from the raw water tank to the acid fermentation tank, anaerobic organisms are used A digester for storing and decomposing the fermented broth fermented in the acid fermentation tank, a storage tank for temporarily storing some of the concentrate discharged through the concentrate discharge unit, a second supply pump for supplying the concentrate stored in the storage tank to the digester, the It includes a gas discharge unit for discharging the gas generated in the digester.

And a digestion liquid storage tank for storing the digestion liquid decomposed in the digestion tank, a digestion liquid discharge unit for transferring the digestion liquid stored in the digestion liquid storage tank to a wastewater treatment plant, and a circulation pump for circulating the digestion liquid stored in the digestion liquid storage tank to the storage tank.

In addition, the raw water supply step of supplying the raw water to the storage space by the raw water supply unit in a state in which the raw water, the concentrate, and the treated water are contained in the storage space of the water treatment device of claims 1 to 5; After generating an ozone mixed liquid by sucking the processed water and ozone gas from the cadaver, the ozone microbubble supply step generates ozone microbubbles by supplying it to the storage space, and plasma is formed in the storage space by the plasma generator. As a result, the plasma microbubble supply step for generating microbubbles, the ozone microbubble mixing step in which the ozone microbubbles and raw water are mixed so that the microparticles contained in the raw water are attached to the ozone microbubbles, the ozone microbubbles to which the microparticles are attached are The ozone microbubble flotation step in which the ozone microbubbles are floated to the upper side and separated, the concentrate separation step of scraping the concentrated solution floated by the scraping unit to the concentrate discharge unit and discharge, and the treatment of discharging the treated water from which the concentrated solution is separated to the treated water discharge unit Including the water discharge step.

And the raw water supply step includes a raw water inflow step in which raw water is supplied to the mixing space of the storage space along the raw water supply pipe by the raw water pump of the raw water supply part, and is introduced through the raw water supply pipe by the flow sensor of the raw water supply part. and an inflow amount measuring step of measuring the raw water amount, and a raw water amount controlling step of controlling the inflow raw water amount by controlling the raw water pump by the raw water supply control unit receiving the signal of the flow rate sensor.

In addition, in the ozone microbubble supply step, a plurality of first blades and a first mixing passage are formed on one surface, and an impeller having a plurality of second blades and a second mixing passage on the other surface is rotated in the rotational space of the pump body. The treated water inflow step in which the treated water of the storage space is introduced into the ozone microbubble pump along the treated water supply pipe by the ozone microbubble pump of the ozone microbubble supply unit provided so that the impeller is rotated so that the treated water is introduced In this case, an air introduction step in which air is introduced into the rotating space through the air supply unit, an ozone gas introduction step in which ozone gas is introduced into the rotating space through the ozone gas supply unit when the impeller is rotated so that the treated water is introduced, a plurality of rotating of the first blade, the second blade, the first mixing furnace, and the ozone mixture liquid generation step of generating an ozone mixture liquid by striking and mixing the treated water supplied by the second mixing furnace, air, and ozone gas, and by the impeller and an ozone microbubble generating step of generating ozone microbubbles by supplying the generated ozone mixed liquid to the mixing space portion through the ozone mixed liquid supply pipe, and the pressure is lowered to normal pressure.

And in the ozone mixture generating step, as the impeller is rotated and the first and second blades are rotated, a hitting step of hitting the treated water, air, and ozone gas supplied to the rotational space, the hit treated water and A first mixing step in which air and ozone gas are first mixed by guiding them in the direction of the center of the impeller along the mixing path, and any one through a mixing communication hole formed to communicate with each other the first mixing path and the second mixing path and a second mixing step of moving the ozone mixture liquid first mixed by the mixing furnace to the other mixing furnace for secondary mixing.

In addition, the third mixing step of mixing the ozone mixed liquid passing through the pipe mixing unit tertiarily is further included.

And the control unit receiving the signal of the ozone microbubble pressure sensor provided in the mixed liquid supply pipe controls the ozone microbubble pump to control the amount of ozone microbubble generated.

In addition, the ozone fine bubble control step includes a pressure signal receiving step of receiving a signal from an ozone fine bubble pressure sensor provided in the mixed liquid supply pipe, and an ozone fine bubble control unit receiving a signal from the ozone fine bubble pressure sensor. and an ozone microbubble control step of controlling the amount of ozone microbubble generated by controlling the ozone microbubble pump by controlling the amount of ozone gas inflow of the treated water of the separation space part and the air of the air supply part and the ozone gas supply part.

And the ozone microbubble control unit of the ozone fine bubble control step is linked with the raw water supply control unit of the raw water amount control step, and a second ozone fine bubble control step of controlling the amount of ozone microbubbles generated in response to the inflow of raw water further comprises, .

In addition, the plasma ozone microbubble supply step is a plasma power supply step of supplying high voltage power to the plasma discharge unit having a dielectric tube, a discharge electrode, and a counter electrode by the plasma power unit, and in the plasma discharge unit by the high voltage power source of the plasma power unit A plasma generating step of generating plasma, and a plasma ozone microbubble generating step of generating plasma ozone microbubbles in the mixing space by the generated plasma.

And the plasma ozone microbubble supply step further includes a gas pressure control step of maintaining the internal gas pressure of the dielectric tube by a gas injection unit having a gas pump, a dielectric tube pressure sensor, and a gas control unit.

In addition, in the concentrate separation step, as the connecting member is rotated by the driving unit of the scraping unit, the scraper is rotated together to scrape the fine particles floating in the floating space and the separation space, A concentrated solution discharging step of discharging the concentrated solution to the concentrated solution discharging unit by the scraping unit, and scraper washing that discharges fine particles by a scraping washing unit provided at the upper end of the concentrated solution discharging unit and washing the scraper passing through the first rotating unit step, including

As described above, according to the water treatment apparatus using plasma and ozone microbubbles and the water treatment method using the same according to the present invention, the ozone microbubbles are mixed with raw water to improve the separation efficiency of the sludge, and the separated sludge is discharged separately. It is a very useful and effective invention that can improve work efficiency by being able to sterilize and disinfect, of course.

1 is a view showing a water treatment apparatus using plasma and ozone microbubbles according to the present invention;
2 is a view showing a side view of a water treatment device according to the present invention,
3 is a view showing an ozone microbubble supply unit according to the present invention,
4 is a view showing an ozone microbubble pump according to the present invention,
5 is a view showing a plasma generator according to the present invention,
6 is a view showing a state in which the water treatment apparatus according to the present invention is further equipped with a treatment water tank unit, a fermentation unit, and a circulation unit;
7 is a view showing a water treatment method using plasma and ozone microbubbles according to the present invention;
8 is a view showing the raw water supply step according to the present invention,
9 is a view showing the ozone microbubble supply step according to the present invention,
10 is a view showing a mixed solution generation step according to the present invention,
11 is a view showing another embodiment of the ozone microbubble supply step according to the present invention,
12 is a view showing a plasma ozone microbubble supply step according to the present invention,
13 is a view showing a concentrate separation step according to the present invention,
14 is a view showing another embodiment of a water treatment method using plasma and ozone microbubbles according to the present invention;
15 is a view showing a post-processing step according to the present invention,
16 is a view showing a fermentation step according to the present invention,
17 is a view showing a cycle step according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION The detailed description set forth below in conjunction with the appended drawings is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art to which the present invention pertains will recognize that the present invention may be practiced without these specific details.

In some cases, well-known structures and devices may be omitted or shown in block diagram form focusing on core functions of each structure and device in order to avoid obscuring the concept of the present invention.

Throughout the specification, when a part is said to "comprising or including" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. do. In addition, the term “…unit” described in the specification means a unit that processes at least one function or operation. Also, "a or an", "one", "the" and like related terms are used differently herein in the context of describing the invention (especially in the context of the claims that follow). Unless indicated or clearly contradicted by context, it may be used in a sense including both the singular and the plural.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

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

1 is a view showing a water treatment apparatus using plasma and ozone microbubbles according to the present invention, FIG. 2 is a view showing a side view of the water treatment apparatus according to the present invention, and FIG. 3 is an ozone microbubble supply according to the present invention Fig. 4 is a view showing an ozone microbubble pump according to the present invention, Fig. 5 is a view showing a plasma generating unit according to the present invention, and Fig. 6 is a view showing the water treated in the water treatment apparatus according to the present invention It is a view showing a state in which a coarse part, a fermentation part, and a circulation part are further provided, FIG. 7 is a view showing a water treatment method using plasma and ozone microbubbles according to the present invention, and FIG. 8 is a raw water supply step according to the present invention. 9 is a view showing the step of supplying ozone microbubbles according to the present invention, FIG. 10 is a view showing the step of generating a mixed solution according to the present invention, and FIG. 11 is a view showing the step of supplying ozone microbubbles according to the present invention It is a view showing another embodiment of the step, FIG. 12 is a view showing the plasma ozone microbubble supply step according to the present invention, FIG. 13 is a view showing the concentrate separation step according to the present invention, and FIG. 14 is this It is a view showing another embodiment of a water treatment method using ozone microbubbles according to the present invention, FIG. 15 is a view showing a post-treatment step according to the present invention, and FIG. 16 is a view showing a fermentation step according to the present invention. , Figure 17 is a view showing a cycle step according to the present invention.

As shown in the drawing, the water treatment device 10 using plasma and ozone microbubbles includes a water storage tank 100, a raw water supply unit 200, a concentrate discharge unit 300, a treated water discharge unit 400, and ozone fine bubbles. It includes a supply unit 500 , a plasma generating unit 1000 , and a scraping unit 600 .

The water storage tank 100 is opened upwardly therein to form a water storage space 102 for containing raw water.

And the raw water supply unit 200 is provided to supply raw water to the storage space portion 102 of the water storage tank 100 .

Here, the raw water includes even high-concentration wastewater such as general wastewater, food wastewater, livestock wastewater, and digestive wastewater.

The concentrate discharge unit 300 is provided to discharge the fine particles floating in the raw water of the water storage tank 100 .

In addition, the treated water discharge unit 400 is provided to discharge the treated water separated from the fine particles in the raw water of the water storage tank 100 .

The ozone microbubble supply unit 500 generates ozone microbubbles using the treated water of the water storage tank 100 and supplies it to the water storage space unit 102 .

And the plasma generating unit 1000 is provided to discharge plasma in the water storage space portion 102 of the water storage tank 100 .

The scraping unit 600 is located on the upper side of the water storage tank 100 , and moves the sludge floated by the moving scraper 640 to the concentrate discharge unit 300 to separate and discharge the sludge.

Accordingly, the water treatment apparatus 10 using plasma and ozone microbubbles mixes supplied raw water and ozone microbubbles, so that the ozone microbubbles and fine particles contained in the raw water are attached and floated, thereby separating them.

The separated fine particles floating are discharged to the concentrate discharge unit 300 by the scraping unit 600, a part of the treated water is discharged to the treated water discharge unit 400, and the other part is the ozone microbubble supply unit 500 ) to generate ozone microbubbles and circulate to the water storage space unit 102, diluting raw water and supplying ozone microbubbles to improve treatment efficiency.

Here, the water storage space portion 102 of the water storage tank 100 includes a mixing space portion 102a, a floating space portion 102b, and a separation space portion 102c, as shown in FIG. 2 .

The mixing space unit 102a is provided to mix the raw water supplied from the raw water supply unit 200 and the ozone fine bubbles supplied from the ozone fine bubble supply unit 500 .

In addition, in the floating space portion 102b, the raw water and ozone microbubbles mixed in the mixing space portion 102a are moved, and the ozone microbubbles and the attached fine particles are floated and separated.

In the separation space portion 102c, the treated water from which the fine particles are separated in the floating space portion 102b is moved and stored.

The mixing space portion 102a, the floating space portion 102b, and the separation space portion 102c are partitioned by the first partition wall 110 and the second partition wall 120 .

The first partition wall 110 is provided to partition the mixing space portion 102a and the floating space portion 102b, and the second partition wall 120 is configured to partition the floating space portion 102b and the separation space portion 102c. provided for

The first partition wall 110 and the second partition wall 120 are formed so that the upper end of the corresponding space communicates with each other and are moved step by step.

Here, the upper end of the second partition wall 120 is located below the upper end of the first partition wall 110 .

And the upper end 112 of the first partition wall 110 is formed to be inclined toward the floating space portion 102b, and is formed at 30 to 60 degrees, preferably at 45 degrees.

In addition, the lower end of the second partition wall 120 is formed with at least one treated water communication tube 122 that communicates with the lower end of the floating space portion 102b and the lower end of the separation space portion 102c.

The area of the treated water communication tube 122 is formed to be smaller than the area communicated with the upper end of the second partition wall 120 , and the amount of movement of the treated water moving through the treated water communication tube 122 is the upper end of the second partition wall 120 . It is 5 to 30% of the amount of treated water transferred through the

And the raw water supply unit 200 includes a raw water supply pipe 210 , a raw water pump 220 , a flow rate sensor 230 , and a raw water supply control unit 240 .

The raw water supply pipe 210 is provided to supply raw water to the lower end of the mixing space portion 102a , and the raw water pump 220 is provided to supply raw water through the raw water supply pipe 210 .

In addition, the flow sensor 230 is provided to measure the amount of raw water introduced through the raw water supply pipe 210 , and the raw water supply control unit 240 receives a signal from the flow sensor 230 to control the raw water pump 220 . provided to do

In addition, the scraping unit 600 includes a first rotating unit 610 , a second rotating unit 620 , a connecting member 630 , a scraper 640 , and a driving unit 650 .

The first rotating part 610 is rotatably provided on the upper side of the rear end of the separation space part 102c of the water storage tank 100 .

In addition, the second rotating part 620 is provided so as to be rotatable on the upper front end of the floating space part 102b of the water storage tank 100 .

The connecting member 630 is provided to rotate the first rotating part 610 and the second rotating part 620 in an endless orbit in the same direction, and is preferably formed as a chain.

And the scraper 640 is provided on the connecting member 630 and as it rotates in the same way, scrapes the fine particles floating in the water storage space 102 of the water storage tank 100 and discharges them to the concentrate discharge unit 300 . .

The scraper 640 is formed to be bent, and the lower end thereof is formed to be bent in the opposite direction to which it is rotated.

Accordingly, when the ozone microbubbles to which the levitated fine particles are attached are discharged, the movement of the treated water is minimized.

The driving unit 650 is provided to rotate the first rotating unit 610 or the second rotating unit 620 to rotate the connecting member 630 and the scraper 640 in an endless orbit.

And the scraping unit 600 further includes a scraping cleaning unit 660 .

The scraping cleaning unit 660 is provided at the upper end of the concentrate discharge unit 300 , and after discharging the injured fine particles to the concentrated solution discharge unit 300 , it moves upward along the first rotating unit 610 . The surface of the scraper 640 is cleaned by scraping the surface of the rotated scraper 640 .

The scraping cleaning unit 660 has elasticity and is inclined downward from the upper end of the concentrate discharge unit 300 toward the first rotating unit 610 .

The concentrated liquid scraped from the surface of the scraper 640 falls to the concentrate discharge unit 300 and is discharged.

In addition, as shown in FIG. 3, the ozone fine bubble supply unit 500 includes an ozone fine bubble pump 510, a treated water supply pipe 520, an air supply unit 530, an ozone gas supply unit 580, and a mixed liquid supply pipe. 540 , an ozone microbubble microbubble pressure sensor 550 and an ozone microbubble control unit 560 .

The ozone microbubble pump 510 is provided to mix the supplied treated water and gas to form an ozone mixed liquid.

In addition, the treated water supply pipe 520 is provided to supply the treated water of the separation space 102c to the ozone microbubble pump 510 , and the air supply unit 530 supplies air to the ozone microbubble pump 510 . provided to do

The ozone gas supply unit 580 is provided for supplying gas to the ozone microbubble pump 510, and the mixed liquid supply pipe 540 mixes the ozone mixed liquid formed in the ozone microbubble pump 510 into the mixing space 102a. provided to supply

In addition, the microbubbles microbubble pressure sensor 550 is provided to measure the pressure of the ozone mixed liquid moving along the mixed liquid supply pipe 540 .

The ozone microbubble control unit 560 controls the ozone microbubble pump 510 by receiving a signal from the microbubble microbubble pressure sensor 550 .

In other words, by receiving the signal of the ozone microbubble pressure sensor 550 to control the supply pressure, it is natural that the control is controlled in connection with the supply amount of raw water or the amount of treated water.

Accordingly, the ozone fine bubble control unit 560 is linked with the raw water supply control unit 240 so that when the raw water supply amount is small or is stopped, the ozone fine bubble generation amount is adjusted together.

Looking at the operating state of the ozone microbubble supply unit 500, the treated water is supplied through the treated water supply pipe 520 by the ozone microbubble pump 510.

When the ozone mixture liquid mixed with the air supplied from the air supply unit 530 and the ozone gas supplied from the ozone gas supply unit 580 is supplied to the mixing space unit 102a through the ozone mixture liquid supply pipe 540, atmospheric pressure It transforms into ozone and generates ozone microbubbles.

And the ozone microbubble supply unit 500 further includes a pipe mixing unit 570 .

The pipe mixing unit 570 is provided to pass the ozone mixed liquid moving along the mixed liquid supply pipe 540 spirally and mix it.

The pipe mixing unit 570 includes a pipe mixing body 572 and a pipe mixing screw 574 .

The pipe mixing body 572 is provided to communicate with the mixed liquid supply pipe 540 .

In addition, the pipe mixing screw 574 is provided inside the pipe mixing body 572 to spirally guide the ozone mixed liquid to be transported so as to tertiarily mix it.

Accordingly, it is possible to improve the mixing rate of the ozone mixed liquid, thereby improving the generation efficiency of ozone microbubbles.

Here, the ozone microbubble pump 510 includes a pump body 512 , a pump inlet 514 , a pump outlet 516 , and an impeller 518 as shown in FIG. 4 .

The pump body 512 has a rotational space 513 formed therein.

And the pump inlet 514 is formed in the pump body 510 for supplying the treated water and gas to the rotational space (513).

The pump outlet 516 is provided so that the ozone mixed liquid formed in the rotational space 513 is supplied to the mixed liquid supply pipe 540 .

In addition, the impeller 518 has double blades 519 and is rotatably provided in the rotational space 513 of the pump body 512 .

Here, the area of the pump inlet 514 is formed to be greater than the area of the pump outlet 516 .

In other words, the area of the pump inlet 514 is formed to be 1 to 4 times the area of the pump outlet 516 .

This is, the pressure discharged to the pump outlet 516 is lower than the pressure introduced into the pump inlet 514, and the speed is reduced by the lowered pressure to form bubbles first.

Then, when it is supplied to the mixing space 102a, it is transformed to normal pressure to generate ozone microbubbles.

And the double blade 519 includes a first blade 5192 and a second blade 5194, a first mixing furnace 5196 and a second mixing furnace 5198.

A plurality of first wings 5192 are formed at regular intervals along the edge of one surface of the impeller 518 .

In addition, a plurality of second blades 5194 are formed at regular intervals along the edge of the other surface of the impeller 518 .

The first mixing path 5196 is provided between the plurality of first blades 5192 to guide and mix treated water and gas flowing in through the pump inlet 514 .

And the second mixing path 5198 is provided between the plurality of second blades 5194, respectively, so that the treated water and the gas introduced through the pump inlet 514 are guided and mixed.

Here, at least one mixing communication hole 5199 for mutually communicating the first mixing furnace 5196 and the second mixing furnace 5198 is further formed.

The mixing communication hole 5199 moves the treated water and gas moving along the first mixing furnace 5196 to the second mixing furnace 5198, and the treated water and gas moving along the second mixing furnace 5198 is moved to the first mixing furnace 5196 to improve the mixing rate.

This mixing communication hole 5199 is formed by an inclined company from the first mixing furnace 5196 to the second mixing furnace 5198, and is formed to be inclined downward from the edge of the impeller 518 to the central part.

In addition, the mixing communication hole 5199 is formed to gradually decrease in diameter from the end in which the mixed liquid is introduced to the end at which it is discharged.

Accordingly, by increasing the speed of the mixed liquid to be moved, it is moved at a different speed from the mixed liquid hit by the double wings 519 to improve the mixing rate.

And the first wing 5192 is positioned between two adjacent second wing 5194 in one embodiment.

In addition, the first blade 5192 and the second blade 5194 are formed to be orthogonal to the corresponding surface of the impeller 518 .

These first blades 5192 and second blades 5194 are each formed in 40 to 100 pieces.

And the ozone microbubble pump 510 is rotated at 1,900-3,600rpm, and the treated water flowing in through the treated water supply pipe 520 is 10 to 60wt% of the treated water of the separation space unit 102c, and the ozone gas supply unit The amount of gas supplied from 530 is 0.5 to 4% of the treated water introduced through the treated water supply pipe 520 .

In addition, it is transformed to atmospheric pressure in the mixing space portion 102a, and the ozone microbubbles are 10 ~ 75㎛.

Here, the microbubbles and ozone microbubbles supplied from the ozone microbubble supply unit 500 generate OH radicals as well as the function of levitating the microparticles and the sterilization and disinfection function.

More specifically, about 95% of the microbubbles float to the microparticles and about 5% burst in water to generate OH radicals.

In addition, about 60% of ozone microbubbles float fine particles, and about 40% generate more than the amount of OH radicals generated when microbubbles burst by air as they burst in water.

This OH radical can oxidize and decompose dissolved organic matter through advanced oxidation.

Accordingly, it is possible to simultaneously remove sterilization and disinfection, and floating substances and soluble substances by the ozone microbubble supply unit 500 .

And, as shown in FIG. 5 , the plasma generating unit 1000 includes a plasma discharging unit 1010 , a plasma power supply unit 1020 , and a plasma controlling unit 1030 .

The plasma discharge unit 1010 is provided in the water storage space portion 102 of the water storage tank 100 to discharge plasma.

Also, the plasma power supply unit 1020 is provided to supply power to the plasma discharge unit 1010 .

The plasma power supply unit 1020 supplies high voltage power.

The plasma control unit 1030 controls the plasma power unit 1020 and the plasma discharge unit 1010 to control the amount of plasma generated.

The plasma discharge unit 1010 includes a dielectric tube 1012 , a discharge electrode 1014 , and a counter electrode 1016 .

The dielectric tube 1012 is provided in the mixing space 102a, and the discharge electrode 1014 is located inside the dielectric tube 1012 .

The dielectric tube 1012 is a circular tube, and is formed of any one selected from among a quartz tube, a glass tube, and a ceramic tube.

And the discharge electrode 1014 is formed in a coil shape.

The counter electrode 1016 is provided outside the dielectric tube 1012 to correspond to the discharge electrode 1014 .

In addition, the plasma generating unit 1000 further includes a gas injection unit 1040 .

The gas injection unit 1040 is provided to maintain the internal gas pressure of the dielectric tube 1012 .

The gas injection unit 1040 includes a gas pump 1042 , a dielectric tube pressure sensor 1044 , and a gas control unit 1046 .

The gas pump 1042 supplies gas into the dielectric tube 1012 .

And the dielectric tube pressure sensor 1044 is provided to measure the internal pressure of the dielectric tube (1012).

The gas controller 1046 receives a signal from the dielectric tube pressure sensor 1044 and controls the gas pump 1042 to adjust the internal pressure of the dielectric tube 1012 .

The plasma generated by the plasma generator 1000 generates microbubbles (O ₂ , H ₂ , O _{3 ,} etc.) by about 10% to levitate fine particles, and OH radicals are generated by about 90% .

OH radicals generated by the plasma generator 1000 can be oxidized and decomposed for dissolved organic matter through advanced oxidation.

Here, the plasma generating unit 1000 may improve the soluble material removal rate by about 30% or more by the microbubble supply unit 500 .

And, as shown in FIG. 6 , the solid-liquid separation device 10 using plasma and ozone microbubbles further includes a treatment water tank unit 700 .

The treatment water tank unit 700 includes a treatment water tank 710 and a treatment water tank pump 720 .

The treated water tank 710 stores treated water discharged through the treated water discharge unit 400 , and the treated water tank pump 720 is provided to transfer the treated water stored in the treated water tank 710 to the wastewater treatment plant.

In addition, the solid-liquid separation device 10 using plasma and ozone microbubbles further includes a fermentation unit 800 and a circulation unit 900 .

The fermentation unit 800 includes a raw water tank 810, an acid fermentation tank 820, a crushing unit 830, a digester 840, a storage tank 850, a second supply pump 860, and a gas discharge unit 870. do.

The raw water tank 810 stores the concentrate discharged through the concentrate discharge unit 300 , and the acid fermentation tank 820 stores the concentrate stored in the raw water tank 810 and ferments it.

And the pulverizing unit 830 pulverizes the concentrate transferred from the raw water tank 810 to the acid fermentation tank 820 .

The digester 840 is provided to store and decompose the fermentation broth fermented in the acid fermentation tank 820 using anaerobic organisms.

In addition, the storage tank 850 is provided to temporarily store some of the concentrate discharged through the concentrate discharge unit (300).

The second supply pump 860 is provided to supply the concentrated liquid stored in the storage tank 850 to the digester 840 .

And the gas discharge unit 870 is provided to discharge the gas generated in the digestion tank (840).

The gas discharged from the gas discharge unit 870 is biogas and includes hydrogen, methane, and the like.

Here, according to the solid-liquid separation device 10 using plasma and ozone microbubbles, the solid-liquid separation rate is improved by more than 60% compared to the prior art, and the amount of methane generated is improved by more than 15% compared to the conventional one.

Also, the circulation unit 900 includes a fire extinguishing liquid storage tank 910 , a fire extinguishing liquid discharge unit 920 , and a circulation pump 930 .

The digestion liquid storage tank 910 stores the digestion liquid decomposed in the digestion tank 840 .

And the extinguishing fluid discharge unit 920 transfers the extinguishing fluid stored in the extinguishing fluid storage tank 910 to the wastewater treatment plant.

The circulation pump 930 circulates the fire extinguishing liquid stored in the fire extinguishing liquid storage tank 910 to the water storage tank 100 .

Accordingly, it is possible to improve the separation efficiency, of course, it can be used as compost or fertilizer, it can also improve the treatment efficiency in the wastewater treatment plant.

As shown in FIG. 7, the water treatment method using a water treatment apparatus using plasma and ozone microbubbles as described above includes a raw water supply step (S10), an ozone microbubble supply step (S20), a plasma microbubble supply step (S30), It includes an ozone microbubble mixing step (S40), an ozone microbubble floating step (S50), a concentrate separation step (S60), and a treated water discharge step (S70).

In the raw water supply step (S10), the raw water is supplied to the storage space 102 by the raw water supply unit 200 in a state in which the raw water, the concentrate, and the treated water are contained in the storage space unit 102 of the water storage tank 100 .

And in the ozone microbubble supply step (S20), the ozone microbubble supply unit 500 inhales the treated water, air, and ozone gas of the storage space 102 to generate an ozone mixed liquid, and then the storage space unit 102. Ozone microbubbles are generated as it is supplied to

In the plasma microbubble supply step ( S30 ), as plasma is formed in the water storage space unit 102 by the plasma generating unit 1000 , microbubbles are generated.

In addition, in the ozone microbubble mixing step (S40), ozone microbubbles and raw water are mixed, and the fine particles contained in the raw water are attached to the ozone microbubbles.

In addition, in the ozone microbubbles floating step (S50), the ozone microbubbles to which the microparticles are attached are floated upward and are separated.

In the concentrate separation step (S60), the concentrate floated by the scraping unit 600 is scraped by the concentrate discharge unit 300 and discharged.

And the treated water discharging step (S70) discharges the treated water from which the concentrate is separated to the treated water discharge unit 400 .

Here, the raw water supply step (S10) includes a raw water inflow step (S11), an inflow measurement step (S12), and a raw water amount control step (S13), as shown in FIG. 8 .

In the raw water inflow step S11 , raw water is supplied to the mixing space 102a of the storage space 102 along the raw water supply pipe 210 by the raw water pump 220 of the raw water supply unit 200 .

And the inflow measurement step (S12) measures the amount of raw water introduced through the raw water supply pipe 210 by the flow sensor 230 of the raw water supply unit 200 .

In the raw water amount control step (S13), the raw water supply control unit 240 receives the signal from the flow rate sensor 230 to control the raw water pump 220 to control the incoming raw water amount.

The ozone microbubble supply step (S20) is, as shown in FIG. 9, the treatment water introduction step (S21), the air introduction step (S22), the ozone gas introduction step (S23), the ozone mixed liquid generation step (S24) and ozone It includes a microbubble generation step (S25).

In the treated water inflow step (S21), a plurality of first blades 5192 and a first mixing furnace 5196 are formed on one surface, and a plurality of second blades 5194 and a second mixing passage 5198 are formed on the other surface. The impeller 518 is stored along the treated water supply pipe 520 by the ozone microbubble pump 510 of the ozone microbubble supply unit 500 provided so as to be rotatable in the rotational space 513 of the pump body 512 . The treated water of the water space part 513 flows into the ozone microbubble pump 510 .

And in the air introduction step (S22), when the impeller 518 is rotated so that the treated water is introduced, air is introduced into the rotational space 513 through the air supply unit 530 .

In the ozone gas introduction step (S23), when the impeller 518 is rotated so that the treated water is introduced, ozone gas is introduced into the rotational space 513 through the ozone gas supply unit 580.

In the ozone mixed liquid generation step (S24), the treated water and air supplied by the plurality of first blades 5192, second blades 5194, first mixing furnace 5196, and second mixing furnace 5198 are rotated. , the ozone gas is blown and mixed to produce an ozone mixed liquid.

In addition, in the ozone microbubble generating step (S25), the ozone mixed liquid generated by the impeller 518 is supplied to the mixing space portion 102a through the ozone mixed liquid supply pipe 540, the pressure is lowered to atmospheric pressure, so that the microbubbles creates

And the ozone mixed liquid generating step (S24) includes a hitting step (S241), a first mixing step (S242), and a second mixing step (S243), as shown in FIG. 10 .

In the striking step (S241), as the impeller 518 is rotated and the first blade 5192 and the second blade 5194 are rotated, the treated water and ozone gas supplied to the rotation space unit 513 are struck.

In addition, in the first mixing step (S242), the hit treated water and ozone gas are guided in the direction of the center of the impeller 518 along the mixing path to first mix.

In the second mixing step (S243), the mixed liquid first mixed by any one mixing furnace through the mixing communication hole 5199 formed to communicate the first mixing furnace 5196 and the second mixing furnace 5198 with each other. is moved to another mixing furnace for secondary mixing.

Here, the mixed liquid generation step (S24) further includes a third mixing step (S244).

In this third mixing step (S244), the mixed liquid passing through the pipe mixing unit 570 is mixed tertiarily.

Accordingly, the mixing rate is improved by mixing the treated water and ozone gas mixed twice through the second mixing step (S243) three times.

This can increase the amount of ozone microbubbles generated when the ozone mixed liquid moves to the mixing space portion 102a, thereby improving the processing efficiency of raw water.

In addition, the ozone microbubble supply step (S20) further includes an ozone microbubble control step (S26), as shown in FIG. 11 .

In this ozone microbubble control step (S26), the ozone microbubble control unit 560, which has received the signal of the ozone microbubble pressure sensor 550 provided in the ozone mixed liquid supply pipe 540, operates the ozone microbubble pump 510. It controls the amount of ozone microbubbles generated.

The ozone fine bubble control step (S26) includes a pressure signal receiving step (S261) and an ozone fine bubble control step (S262).

In the pressure signal receiving step (S261), a signal from the ozone microbubble pressure sensor 550 provided in the ozone mixed liquid supply pipe 540 is received.

In the ozone fine bubble control step (S262), the ozone fine bubble pump 510 is controlled by the ozone fine bubble control unit 560 that has received the signal of the ozone fine bubble pressure sensor 550 to process the separation space unit 102c. The amount of ozone microbubbles generated is controlled by adjusting the water and ozone gas inflow of the ozone gas supply unit 530 .

Here, the ozone microbubble supply step (S20) further includes a second ozone microbubble control step (S27).

In the second ozone microbubble control step (S27), the ozone microbubble control unit 560 of the ozone microbubble control step (S26) is linked with the source water supply control unit 240 of the source water amount control step (S13) to correspond to the raw water inflow. Controls the amount of ozone microbubbles generated.

In addition, the plasma microbubble supply step (S30) includes a plasma power supply step (S31), a plasma generation step (S32), and a plasma microbubble generation step (S33), as shown in FIG. 12 .

In the plasma power supply step S31 , high voltage power is supplied to the plasma discharge unit 1010 having the dielectric tube 1012 , the discharge electrode 1014 , and the counter electrode 1016 by the plasma power supply unit 1020 .

In the plasma generating step ( S32 ), plasma is generated in the plasma discharging unit 1010 by the high voltage power of the plasma power supply unit 1020 .

In the plasma microbubble generation step (S33), plasma microbubbles are generated in the mixing space portion 102a by the generated plasma.

The plasma microbubbles are combined with the microparticles included in the raw water together with the ozone microbubbles generated by the ozone microbubble supply unit 500 to improve the separation efficiency.

This plasma microbubble supply step (S30) further includes a gas pressure control step (S34).

In this gas pressure adjusting step (S34), the internal gas pressure of the dielectric tube 1012 is maintained by the gas injection unit 1040 having the gas pump 1042, the dielectric tube pressure sensor 1044, and the gas control unit 1046. .

The concentrate separation step (S60) includes a scraping step (S61), a concentrate discharge step (S62), and a scraper washing step (S63), as shown in FIG. 13 .

In the scraping step (S61), as the connecting member 630 is rotated by the driving unit 650 of the scraping unit 600, the scraper 640 is rotated together with the floating space portion 102b and the separation space portion ( Scrape the fine particles floating on 102c).

And the concentrate discharge step (S62) discharges the concentrate to the concentrate discharge unit 300 by the scraping unit (600).

In the scraper washing step (S63), the fine particles are discharged by the scraping washing unit 660 provided at the upper end of the concentrate discharging unit 300 and the scraper 640 passing through the first rotating unit 610 is washed.

14, the wastewater treatment method using plasma and ozone microbubbles further includes a post-treatment step (S80), a fermentation step (S90), and a circulation step (S100).

The post-treatment step (S80) includes a treatment water tank storage step (S81) and a treatment water transfer step (S82), as shown in FIG. 15 .

In the treated water tank storage step S81 , the treated water discharged through the treated water discharge unit 400 in the treated water discharge step S60 is stored in the treated water tank 710 .

In the treatment water transfer step ( S82 ), the treated water stored in the treatment water tank 710 is transferred to the wastewater treatment plant by the treatment water tank pump 720 .

In addition, the fermentation step (S90), as shown in Figure 16, the raw water tank storage step (S91), the concentrate crushing step (S92), the concentrate fermentation step (S93), the concentrate decomposition step (S94), the concentrate temporary storage step (S95) ), a concentrate addition step (S96) and a gas discharge step (S97).

In the raw water tank storage step (S91), the concentrate discharged through the concentrate discharge unit 300 is stored in the raw water tank 810.

In the concentrate grinding step (S92), the concentrate of the raw water tank 810 to be stored in the acid fermentation tank 820 is pulverized by the grinding unit 830.

In the concentrate fermentation step (S93), the concentrate pulverized by the pulverizing unit 830 is stored in the acid fermentation tank 820 and fermented.

In addition, in the concentrate decomposition step (S94), the fermented liquid fermented in the acid fermentation tank 820 is stored in the digester 840 and decomposed into anaerobic organisms.

In the concentrate temporary storage step (S95), some of the concentrate discharged through the concentrate discharge unit 300 is temporarily stored in the storage tank 850 .

And in the step of adding the concentrate ( S96 ), the concentrate stored in the storage tank 850 is supplied to the digester 840 by the second supply pump 860 .

In the gas discharging step (S97), the gas generated in the digester 840 is discharged by the gas discharging unit 870 .

In addition, the circulation step (S100) includes a digestive juice storage step (S101), a digestive juice transfer step (S102), and a digestive juice circulation step (S103), as shown in FIG. 17 .

In the digestion liquid storage step ( S101 ), the digestion liquid decomposed in the digestion tank 840 is stored in the digestion liquid storage tank 910 .

In the digestive fluid transfer step (S102), the extinguishing fluid stored in the digestive fluid storage tank 910 is transferred to the wastewater treatment plant by the extinguishing fluid discharge unit 920 .

In the extinguishing fluid circulation step S103 , the extinguishing fluid stored in the extinguishing fluid storage tank 910 is circulated to the water storage tank 100 by the circulation pump 930 .

10: solid-liquid separation device 100: water storage tank
102: water storage space part 102a: mixing space part
102b: floating space 102c: separation space
200: raw water supply unit 300: concentrate discharge unit
400: treated water discharge unit 500: ozone microbubble supply unit
510: ozone microbubble pump 520: treated water supply pipe
530: ozone gas supply unit 540: ozone mixed liquid supply pipe
550: ozone fine bubble pressure sensor 560: ozone fine bubble control unit
570: pipe mixing part
600: scraping part 610: first rotating part
620: second rotating part 630: connecting member
640: scraper 650: drive unit
700: treatment water tank 800: fermentation unit
900: circulation unit 1000: plasma generating unit

Claims (10)

a water storage tank which is opened upwardly therein and has a water storage space for containing raw water;
a raw water supply unit for supplying raw water to the water storage space of the water storage tank;
Concentrate discharge unit for discharging the fine particles floating in the raw water of the water storage tank;
a treated water discharge unit for discharging the treated water separated from the fine particles in the raw water of the water storage tank;
an ozone microbubble supply unit for generating ozone fine bubbles using the treated water and ozone gas of the water storage tank and supplying them to the water storage space;
a plasma generating unit for discharging plasma to the water storage space of the water storage tank; and
It includes; a scraping unit located on the upper side of the water storage tank, which separates and discharges the sludge floated by the moving scraper to the concentrate discharge unit,
The water storage space portion of the water storage tank,
a mixing space unit for mixing the raw water supplied from the raw water supply unit and the fine bubbles supplied from the ozone fine bubble supply unit;
a floating space in which raw water and microbubbles mixed in the mixing space are moved, the microbubbles and the attached microparticles are floated and separated;
a separation space in which the treated water in which the fine particles are separated from the floating space is moved and stored;
a first partition wall for partitioning the mixing space and the floating space; and
It includes; a second bulkhead for partitioning the floating space and the separation space.
The ozone microbubble supply unit,
an ozone microbubble pump for mixing the supplied treated water and ozone gas to form an ozone mixed liquid;
a treated water supply pipe for supplying the treated water from the separation space to the ozone microbubble pump;
an air supply unit for supplying air to the ozone microbubble pump;
an ozone gas supply unit for supplying ozone gas to the ozone microbubble pump;
an ozone mixed liquid supply pipe for supplying the ozone mixed liquid formed in the ozone microbubble pump to the mixing space;
a pressure sensor for measuring the pressure of the ozone mixed liquid moving along the ozone mixed liquid supply pipe; and
Includes; ozone fine bubble control unit for receiving the signal of the pressure sensor to control the ozone fine bubble pump;
Treated water is supplied through the treated water supply pipe by the ozone microbubble pump, and the ozone mixed liquid mixed with the air supplied from the air supply unit and the ozone gas supplied from the ozone gas supply unit passes through the ozone mixed liquid supply pipe to the ozone mixing space When supplied to negative pressure, it is transformed to normal pressure and generates ozone microbubbles.
The ozone microbubble pump,
a pump body having a rotating space formed therein;
a pump inlet formed in the pump body for supplying treated water, air, and ozone gas to the rotational space;
a pump outlet for supplying the ozone mixed liquid formed in the rotational space to the ozone mixed liquid supply pipe; and
An impeller having double blades and being rotatably provided in the rotational space of the pump body;
The double wings,
a plurality of first blades formed at regular intervals along the edge of one surface of the impeller;
a plurality of second blades formed at regular intervals along the edge of the other surface of the impeller;
a first mixing furnace formed between the plurality of first blades to guide and mix treated water and gas flowing in through the pump inlet; and
a second mixing path formed between the plurality of second blades to guide and mix the treated water and the gas introduced through the pump inlet;
A mixing communication hole for communicating the first mixing furnace and the second mixing furnace with each other is further formed,
The ozone microbubble supply unit,
A water treatment apparatus using plasma and ozone microbubbles further comprising; a pipe mixing unit for mixing the ozone mixed liquid moving along the ozone mixed liquid supply pipe in a spiral manner. delete delete delete According to claim 1, wherein the plasma generating unit,
a plasma discharge unit provided in the water storage space of the water storage tank to discharge plasma;
a plasma power supply unit for supplying power to the plasma discharge unit; and
A water treatment apparatus using plasma and ozone microbubbles, including; a plasma control unit controlling the plasma generation amount by controlling the plasma power supply unit and the plasma discharge unit. A raw water supply step of supplying raw water to the storage space by the raw water supply unit in a state in which the raw water, the concentrate, and the treated water are contained in the storage space of the water treatment device of claim 1 or 5;
an ozone microbubble supply step of generating an ozone mixed liquid by sucking the treated water and ozone gas from the storage space by the ozone microbubble supply unit, and then supplying the ozone fine bubbles to the storage space;
Plasma microbubble supply step of generating microbubbles as the plasma is formed in the water storage space by the plasma generator;
an ozone microbubble mixing step in which the ozone microbubbles and raw water are mixed so that the fine particles contained in the raw water are attached to the ozone microbubbles;
an ozone microbubble flotation step in which the ozone microbubbles to which the microparticles are attached are levitated to the upper side and separated;
a concentrate separation step of scraping and discharging the concentrate floating by the scraping unit to the concentrate discharge unit; and
A water treatment method using plasma and ozone microbubbles comprising a; a treated water discharging step of discharging the treated water from which the concentrate is separated to a treated water discharging unit. The method of claim 6, wherein the ozone microbubble supply step,
A plurality of first blades and a first mixing passage are formed on one surface, and an impeller having a plurality of second blades and a second mixing passage on the other surface is provided so as to be rotatable in the rotational space of the pump body. The ozone microbubble supply unit a treated water inflow step in which the treated water of the storage space is introduced into the ozone microbubble pump along the treated water supply pipe by the ozone microbubble pump;
When the impeller is rotated so that the treated water is introduced, an air inlet step of introducing air into the rotating space through the air supply unit;
an ozone gas inflow step in which ozone gas is introduced into the rotational space through the ozone gas supply unit when the impeller is rotated so that the treated water is introduced;
an ozone mixture liquid generating step of generating an ozone mixture liquid by striking and mixing the plurality of first blades, the second blades, the first mixing furnace, and the treated water supplied by the rotating plurality of air and ozone gas; and
Plasma and ozone microbubbles comprising a; as the ozone mixed liquid generated by the impeller is supplied to the mixing space through the ozone mixed liquid supply pipe, the pressure is lowered to normal pressure to generate ozone microbubbles; water treatment method using The method of claim 7, wherein the ozone mixture generating step comprises:
a striking step of striking the treated water, air, and ozone gas supplied to the rotational space as the impeller is rotated and the first and second blades are rotated;
a first mixing step of first mixing the blown treated water, air, and ozone gas by guiding them in the direction of the center of the impeller along the mixing path; and
Second mixing the ozone mixture liquid firstly mixed by one mixing furnace to the other mixing furnace through a mixing communication hole formed to communicate the first mixing furnace and the second mixing furnace with each other A water treatment method using plasma and ozone microbubbles, including a mixing step. According to claim 6, wherein the plasma microbubbles supply step,
a plasma power supply step of supplying high voltage power to a plasma discharge unit having a dielectric tube, a discharge electrode, and a counter electrode by the plasma power supply unit;
Plasma generating step in which plasma is generated in the plasma discharge unit by the high voltage power source of the plasma power unit; and
Plasma microbubbles generating step of generating plasma microbubbles in the mixing space by the generated plasma; a water treatment method using plasma and ozone microbubbles comprising a. According to claim 6, wherein the concentrate separation step,
As the connecting member is rotated by the driving unit of the scraping unit, the scraper is rotated together to scrape the fine particles floating in the floating space and the separation space;
a concentrated solution discharging step of discharging the concentrated solution to the concentrated solution discharging unit by the scraping unit; and
A method for treating water using plasma and ozone microbubbles, including a scraper washing step of discharging fine particles by a scraping washing unit provided at the upper end of the concentrate discharging unit and washing the scraper passing through the first rotating unit.

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