KR101999502B1 - Wastewater reusing system using the selective operation - Google Patents

Abstract

The heavy water treatment system according to an embodiment of the present invention is characterized by circulating the treated water to remove pollutants of the treated water provided from the treated milk feeding inlet or discharging the treated water from which pollutants have been removed to an outlet communicated with the treated water tank Wherein the treatment water is introduced from the treatment liquid feeding inlet and the microbubbles disposed on the piping module and containing the treated water and the ozone are introduced into the piping module, A fine bubble generating unit for injecting fine bubbles containing ozone into the pretreated treated water discharged from the sealed reaction unit and introducing the fine bubbles into the sealed reaction unit, A gas-dissolved portion for allowing a dissolved gas containing ozone to react, a gas- And a ceramic membrane processing unit disposed on the piping module for filtering the suspended matter of the treated water and communicating with the discharge port, wherein the ceramic membrane treating unit is disposed on the piping module to mix the ozone-containing micro- .

Description

[0001] The present invention relates to a low energy heavy water treatment system using selective operation,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment system for reuse of wastewater and discharged water. More particularly, the present invention relates to a water treatment system for circulating the treated water to remove pollutants from the treated water supplied from the treated milk feeding inlet, It is a heavy water treatment system for discharging the water to an outlet communicating with the water tank.

In general, sewage that can contaminate water quality of river or sea such as domestic sewage or early stormwater is regulated to discharge in a sewage treatment facility with purified water of a certain level of quality, and rainwater is stored in an underground storage tank As well as to use it afterwards.

A physical, chemical, or biological treatment facility should be provided in a place where the wastewater or heavy water (hereinafter, simply referred to as "heavy water" or "reused water") is stored or joined together in a form suitable for the type of heavy water to be treated. Through such treatment facilities, the sewage or initial stormwater is discharged to rivers, rivers or the sea in a state of being purified to a certain level of water quality, thereby preventing ecosystem damage and being stored in a certain storage tank and being recycled.

These treatment facilities are constructed so that water quality can be purified through primary, secondary, tertiary or more wastewater treatment processes depending on the polluted degree of the treated wastewater. In other words, depending on the nature of the heavy water to be treated, the water quality required through various and complicated steps such as the step of removing the suspended matters, the step of precipitating the dirt, the step of filtering the wastewater, the step of adsorbing foreign matter, As shown in FIG.

In the meantime, there is disclosed a method of using a pretreatment device for pretreatment of a waste water treatment plant, which is disclosed in Korean Utility Model Registration No. 20-152529 of the Korean Intellectual Property Office, Patent Document No. 10-402759 entitled "Method and Apparatus for Pretreatment of Sewage and Wastewater," Patent Registration No. 10-467055, A wastewater treatment device ', a patent application number' 10 -555142 ',' a pretreatment device for removing sediments such as wastewater and wastewater ', a' pretreatment device for wastewater ', a patent registration No. 10-721437, A pretreatment system for industrial wastewater treatment ', an' initial stormwater treatment device including a cartridge spiral screen 'of Patent Registration No. 10-800559 and a' radial initial stormwater treatment device 'of Patent Registration No. 10-823236, It will be appreciated that various types of devices for removing foreign substances prior to the treatment process, such as sewage and wastewater, are known.

However, as described above, most known preprocessing apparatuses have a complicated structure, and are incompatible with other processing facilities, which is disadvantageous in terms of efficiency.

An object of the present invention is to provide a method and apparatus for circulating the treated water by applying a selection condition according to the degree of contamination to remove contaminants from the treated water supplied from the treated milk feeding inlet, And discharging the water to the discharge port.

The heavy water treatment system according to an embodiment of the present invention is characterized by circulating the treated water to remove pollutants of the treated water provided from the treated milk feeding inlet or discharging the treated water from which pollutants have been removed to an outlet communicated with the treated water tank Wherein the treatment water is introduced from the treatment liquid feeding inlet and the microbubbles disposed on the piping module and containing the treated water and the ozone are introduced into the piping module, A fine bubble generating unit for injecting fine bubbles containing ozone into the pretreated treated water discharged from the sealed reaction unit and introducing the fine bubbles into the sealed reaction unit, A gas-dissolved portion for allowing a dissolved gas containing ozone to react, a gas- And a ceramic membrane processing unit disposed on the piping module for filtering the suspended matter of the treated water and communicating with the discharge port, wherein the ceramic membrane treating unit is disposed on the piping module, The fine bubble generating unit includes a motor part generating a rotational force by an external power source, an impeller part rotating by the motor part, an air inflow part provided adjacent to the impeller part, And an ozone inlet disposed adjacent to the air inlet to provide a passage through which ozone is introduced.

The closed reaction unit of the heavy water treatment system according to an embodiment of the present invention may include a closed type reaction tank having a wide central portion and a conical or pyramidal shape whose cross section is narrowed toward the upper side and the lower side, A sludge discharge pipe formed at an upper portion of the closed type reaction tank and discharging sludge in the closed type reaction tank, a discharge pipe formed at one side wall of the closed type reaction tank for discharging the treated water, And a product floating inlet and a product outlet pipe formed on one wall surface and connected to the microbubble generator.

The impeller portion of the heavy water treatment system according to an embodiment of the present invention includes a blade portion including a coupling portion coupled to a rotation shaft of the motor portion and a plurality of blades radially arranged along an outer peripheral surface of the coupling portion, Each wing portion constituting the wing portion can be rotatably mounted on the engaging portion.

The heavy water treatment system according to one embodiment of the present invention includes an inverter unit connected to the motor unit to change the rotation speed of the motor unit, a treatment unit installed in the product floating inlet, Further comprising a turbidity sensor unit for sensing the turbidity of water and a control unit for controlling the inverter unit based on the turbidity of the treated water measured by the turbidity sensor unit, When the turbidity of the treated water measured by the turbidity sensor unit is smaller than a predetermined turbidity, the control unit controls the inverter unit to increase the number of revolutions of the motor unit when the turbidity of the treated water is greater than a predetermined turbidity, It is possible to control the inverter section so as to decrease.

The micro bubble generator of the heavy water treatment system according to an embodiment of the present invention may include a first valve unit formed in the air inlet unit to open and close the air inlet unit and a second valve unit formed in the ozone inlet unit to open and close the ozone inlet unit 2 valve portion.

Each wing portion constituting the plurality of wing portions of the heavy water treatment system according to the embodiment of the present invention is constituted of a mounting portion rotatably mounted on the engaging portion and a blade piece connected to the mounting portion, Each of the wings constituting the plurality of wings is rotated with respect to the engaging portion at a first position in which at least a portion overlaps the adjacent wing portion, And can be moved to a second position spaced apart from a wing portion.

In each of the plurality of ceramic fins of the heavy water treatment system according to the embodiment of the present invention, when the impeller rotates, it can collide with adjacent ceramic fins and perform disordered motion.

The plurality of wings of the heavy water treatment system according to an embodiment of the present invention includes a first wing portion, a second wing portion and a third wing portion which are disposed adjacent to each other, and the first wing portion, And the length of each blade of the third wing can be different.

According to the present invention, the amount of fine bubbles and the size of particles can be controlled according to the degree of contamination (turbidity) of the treated water, so that sufficient mixing effect and purification effect can be obtained and the efficiency of removing contaminants can be maximized, And energy savings can be expected.

1 is a configuration diagram of a heavy water treatment system according to an embodiment of the present invention;
2 is a schematic view for explaining a hermetic reaction part of a heavy water treatment system according to an embodiment of the present invention;
3 to 7 are schematic views for explaining a micro-bubble generator of a heavy water treatment system according to an embodiment of the present invention;
FIG. 8 is a block diagram illustrating a turbidity sensor unit and a control unit of a heavy water treatment system according to an embodiment of the present invention. FIG.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

1 is a configuration diagram of a heavy water treatment system according to an embodiment of the present invention.

Referring to Fig. 1, a heavy water treatment system 1 according to an embodiment of the present invention is provided with a circulation system for circulating the treatment water or removing contaminants from the treated water (In) And a system for discharging the treated water to the outlet (Out) communicating with the treatment water tank.

The heavy water treatment system 1 according to the present invention includes a piping module 10, a hermetic reaction part 20, a fine bubble generating part 30, a gas dissolving part 40, a gas-liquid mixing part 50, 60).

Specifically, the piping module 10 includes a hermetically sealed reaction part 20, a gas dissolving part 40, and a gas-liquid contact part 40, which are disposed between the treated milk feeding inlet In and the outlet Out. And provides the passage of the treated water via the mixing section 50 and the ceramic membrane processing section 60. [

The closed reaction unit 20 can allow the treated water to flow in from the treated water feeding inlet In and be disposed on the piping module 10 so that the treated water reacts with fine bubbles containing ozone.

The gas dissolving unit 40 may be disposed on the piping module 10 so that the treated water reacts with the dissolved gas containing ozone.

Specifically, the gas dissolved portion 40 is disposed on the piping module 10 so that the treated water reacts with dissolved gas containing ozone. The gas-dissolved portion 40 is an apparatus using a pressure holding auxiliary tank, and more specifically, a device capable of increasing the dissolved amount of gas in the liquid

The gas-liquid mixing unit 50 may be disposed between the closed reaction unit 20 and the gas-dissolved unit 40 to mix the micro-bubbles containing the ozone with the process water.

The ceramic membrane processing unit 60 is disposed on the piping module 10 to filter suspended matters of the treated water and communicate with the outlet Out.

Specifically, the ceramic membrane treatment unit 60 may be a kind of membrane that filters contaminants into the ceramic membrane while the treatment water passes through the ceramic membrane.

2 is a schematic view for explaining a hermetic reaction part of a heavy water treatment system according to an embodiment of the present invention.

2, the hermetic reaction unit 20 of the heavy water treatment system 1 according to the embodiment of the present invention has a conical or pyramidal shape with a wide central portion and a narrowed cross section at the upper and lower sides An inlet pipe 23 formed at one side wall of the closed reaction tank 21 and introducing the pretreated process water into the closed reaction tank 21 and a water supply pipe 23 formed at one side wall of the closed reaction tank 21, A sludge discharge pipe 27 formed at an upper portion of the closed reaction tank 21 for discharging sludge in the closed reaction tank 21 and a sludge discharge pipe 27 formed at one side wall of the closed reaction tank 21, (28) and a generator outlet pipe (29) that are connected to the outlet (30).

3 to 7 are schematic views for explaining a micro-bubble generator of a heavy water treatment system according to an embodiment of the present invention.

3 to 7, the micro-bubble generating unit 30 of the heavy water treatment system 1 according to the embodiment of the present invention includes a motor unit generating a rotational force by an external power source, An air inlet portion 35 disposed adjacent to the impeller portion 33 to provide a passage through which external air flows, and an air inlet portion 35 disposed adjacent to the air inlet portion 35, And an ozone inlet portion 37 for providing a passage through which ozone flows.

The micro-bubble generating unit 30 may be a micro-bubble generating unit that has been pretreated through the generation unit discharge pipe 29 through which the treated water pretreated from the sealed reaction unit 20 flows, Air and the ozone introduced from the ozone inflow portion 37 and flows out into the hermetic reaction portion 20 through the impeller portion 33.

Specifically, the micro-bubble generator 30 may inject micro-bubbles containing ozone into the pretreated water discharged from the closed reaction unit 20 and may flow into the closed reaction unit 20. When the pretreated process water is introduced and the ozone gas is injected, the mixture is mixed by the mixing pump and the line mixer, and thereby, the ozone gas is decomposed into the ultra-fine grained state in the fog state. Accordingly, it is possible to maximize the contact efficiency between the mist-decomposed ozone gas and the treated water.

The air inlet 35 may be connected to the air generator to provide a passage for introducing air into the microbubble generator 30 and the ozone inlet 37 may be connected to the ozone generator Thereby providing a passage through which ozone flows into the microbubble generator 30.

The impeller 33 may be configured to allow the air and ozone to be micro-saturated before the pretreated water mixed with air and ozone is discharged through the generated floating inlet 28 of the closed reaction unit 20.

Specifically, the impeller portion 33 includes a coupling portion 331 coupled to the rotation shaft of the motor portion and formed in a cylindrical shape, and a plurality of wing portions 333a radially arranged along the outer peripheral surface of the coupling portion 331, And a blade portion 333 formed of a metal plate.

Each wing portion 333a constituting the plurality of wing portions 333a may be rotatably mounted on the engaging portion 331. [

Each wing 333a constituting the plurality of wing portions 333a includes a mounting portion 361 rotatably mounted on the engaging portion 331 and a blade portion 361 connected to the mounting portion 361. [ 362).

The plurality of wing portions 333a may be formed so as to cover the end area of the generation portion discharge pipe 29 so that the process water can be moved to a gap generated by the rotation of the motor portion.

The formation direction or the rotation direction of the blades is determined by the plurality of wing portions 333a in order to move the treatment water from the microbubble generator 30 to the sealed reaction portion 20.

The mounting portion 361 is rotated with respect to the engaging portion 331 and the blade piece 362 can be rotated in conjunction with the mounting portion 361. [ Accordingly, the blade piece 362 radially arranged in the coupling portion 331 can be overlapped or released from the neighboring blade piece 362. [

The space between the blade piece 362 and the blade piece 362 becomes relatively narrow when the blade piece 362 is moved so as to overlap with the blade piece 362 and thereby the blade piece 362 and the blade piece 362 The particles of the air to be pulverized can be made small.

The space between the blade piece 362 and the blade piece 362 is relatively widened so that the blade piece 362 and the blade piece 362 are separated from each other, The particles of the air to be pulverized can be enlarged.

On the other hand, the rotation speed of the motor unit can be changed according to the control of the inverter unit 70 by the control unit 90 to be described later, whereby the amount of minute bubbles can be controlled. The present invention can efficiently remove contaminants by controlling the amount of fine bubbles and the particle size of fine bubbles according to the degree of contamination (turbidity) of the treated water.

The relative positional relationship between the blade piece 362 and the blade piece 362 is set to be larger than the contaminant size of the treated water by the control of the inverter unit 70 of the control unit 90 as the turbidity increases, So that they can be arranged in a superposing manner.

The blade piece 362 may be formed by overlapping a plurality of ceramic fins 363 having elasticity.

Concretely, each blade piece 362 constituting the plurality of blade portions 333a is formed by overlapping a plurality of ceramic fins 363, so that the ceramic fins 363 can be deformed elastically.

Accordingly, when the impeller 33 rotates, each of the plurality of ceramic fins 363 can collide with the adjacent ceramic fins 363 and perform disordered motion. Specifically, when the impeller portion 33 rotates, each of the plurality of ceramic fins 363 may be warped by inertia, and each of the plurality of ceramic fins 363 may perform disordered movement according to a flow of water with the introduced treated water. This can be a more disordered motion due to collision with adjacent ceramic fins 363.

Further, the fine bubbles introduced into the space between the respective ceramic fins 363 may be crushed by the disordered movement of the ceramic fins 363 to reduce the size of the particles.

The smaller the number of fine bubbles, the more the number of particles increases, and at the same time, the smaller the number of fine bubbles, the smaller the number of particles can be brought into contact with the smaller pollutants, so that the purification action by air or ozone can be actively performed.

The plurality of wing portions 333a may include first wing portions 333a-1, second wing portions 333a-2, and third wing portions 333a-3 disposed adjacent to each other .

Each wing 333a constituting the plurality of wing portions 333a is rotated with respect to the engaging portion 331 at a first position in which at least a portion of the wing portions 333a is overlapped with the adjacent wing portion 333a , And can be moved to a second position spaced apart from the adjacent wing 333a. The overlapping and spacing of the neighboring wing 333a has been described above.

The length of each blade piece 362 of the first blade 333a-1, the second blade 333a-2 and the third blade 333a-3 may be different.

Specifically, the length of the neighboring wing portions 333a may be slightly different, and the space between the wing portions 333a due to the rotation of the wing portions 333a may be irregularly changed to accelerate the pulverization of the minute bubbles . In other words, a vortex is generated at a different position by the wing portion 333a formed by the different length of the constant flow of water following the rotation of the impeller portion 33, thereby generating irregular movement of the minute bubbles, And the collision with the member can be promoted.

The microbubble generator 30 includes a first valve portion formed in the air inlet portion 35 to open and close the air inlet portion 35 and a second valve portion formed in the ozone inlet portion 37, And a second valve unit for opening / closing the valve unit 37.

The first valve unit can regulate the amount of air, and the second valve unit can regulate the amount of ozone.

Since ozone differs depending on the type of treated water, the amount of ozone needs to be adjusted depending on the treated water. For reference, when the number of water to be treated is water for industrial use, the ozone injection rate is 3 to 10 ppm, 8 to 10 ppm for wastewater treated water, and 40 to 80 ppm for wastewater treated organic wastewater.

In the present invention, a certain amount of mixed gas is injected through the first valve portion and the second valve portion, and the ratios thereof are adjusted differently, so that purification of treated water can be efficiently realized.

8 is a block diagram illustrating a turbidity sensor unit and a control unit of the heavy water treatment system according to an embodiment of the present invention.

Referring to FIG. 8, the heavy water treatment system 1 according to the embodiment of the present invention includes an inverter unit 70 connected to the motor unit to change the rotation speed of the motor unit, A turbidity sensor unit 80 installed in the closed type reaction tank 21 for sensing the turbidity of the treated water in the closed type reaction tank 21 flowing into the generated floating inlet 28 and a turbidity sensor unit 80 for detecting the turbidity of the treated water measured by the turbidity sensor unit 80 The control unit 90 may further include a control unit 90 for controlling the inverter unit 70 based on the control signal.

The inverter unit 70 can frictionally crush the treated water to produce fine bubbles that are optimized according to the water temperature and properties of the treated water. This can be implemented through a change in the number of revolutions.

The control unit 90 controls the inverter unit 70 to increase the number of rotations of the motor unit when the turbidity of the treated water measured by the turbidity sensor unit 80 is greater than a predetermined turbidity, When the turbidity of the treated water measured by the turbine section 80 is smaller than a predetermined turbidity, the inverter section 70 can be controlled such that the number of revolutions of the motor section is reduced.

Specifically, the rotation speed of the motor unit can be changed according to the control of the inverter unit 70 by the controller 90, whereby the amount of minute bubbles can be controlled.

As the turbidity increases, the amount of minute bubbles generated by the control of the inverter unit 70 of the control unit 90 increases proportionally to increase the purification efficiency. As the turbidity decreases, unnecessary power consumption can be prevented in inverse proportion.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that changes or modifications may fall within the scope of the appended claims.

1: heavy water treatment system
10: Piping module
20: closed reaction part
30: Micro bubble generator
40: gas-dissolved part
50: gas-liquid mixing section
60: Ceramic film processing section
70: Inverter section
80: Turbidity sensor section
90:

Claims (8)

CLAIMS What is claimed is: 1. A heavy water treatment system for circulating the process water to remove contaminants from the process water supplied from a process milk feeding inlet, or for discharging the process water from which contaminants have been removed to an outlet communicating with the process water tank,
A piping module for providing a moving passage of the process water;
A sealed reaction unit for introducing the treated water from the treated milk feeding inlet and disposed on the piping module so that the treated water reacts with fine bubbles containing ozone;
A fine bubble generating unit for injecting fine bubbles containing ozone into the pretreated treated water discharged from the sealed reaction unit and introducing the fine bubbles into the sealed reaction unit;
A gas dissolution part disposed on the piping module for allowing dissolved water containing ozone to react with the treated water;
A gas-liquid mixing unit disposed between the closed reaction unit and the gas-dissolved unit to mix the micro-bubbles containing the ozone with the process water; And
And a ceramic membrane processing unit disposed on the piping module for filtering suspended matters of the treated water and communicating with the discharge port,
Wherein the micro-
An impeller portion rotated by the motor portion; an air inlet portion provided adjacent to the impeller portion to provide a passage through which external air flows, And an ozone inlet disposed adjacent to the ozone inlet and providing a passage through which ozone is introduced,
The closed-
A closed type reaction tank having a wide central portion and a conical or pyramidal shape whose cross section is narrowed toward the upper side and the lower side,
An inlet pipe formed on one side wall of the sealed reaction tank and having a pretreated process water flowing therein,
A discharge pipe formed on one side wall of the closed reaction tank and discharging the treated water,
A sludge discharge pipe formed at an upper portion of the closed reaction tank for discharging sludge in the closed reaction tank,
And a product floating inlet and a product outlet pipe formed on one side wall of the sealed reaction tank and connected to the microbubble generator,
The impeller portion
And a blade portion having a coupling portion coupled to a rotation axis of the motor portion and a plurality of blades radially arranged along an outer peripheral surface of the coupling portion,
Wherein each of the vanes constituting the plurality of vanes comprises:
And is rotatably mounted on the coupling portion.
delete delete The method according to claim 1,
An inverter unit connected to the motor unit to change a rotation speed of the motor unit;
A turbidity sensor unit installed in the generated floating inlet to sense turbidity of treated water in the closed type reaction tank flowing into the generated floating inlet; And
And a control unit for controlling the inverter unit based on the turbidity of the treated water measured by the turbidity sensor unit,
Wherein the control unit controls the inverter unit to increase the number of rotations of the motor unit when the turbidity of the treated water measured by the turbidity sensor unit is greater than a predetermined turbidity and the turbidity of the treated water measured by the turbidity sensor unit And controls the inverter section so that the number of rotations of the motor section is reduced when the turbidity is smaller than a predetermined turbidity.
5. The method of claim 4,
Wherein the micro-
A first valve unit formed in the air inlet unit to open and close the air inlet unit, and a second valve unit formed in the ozone inlet unit to open and close the ozone inlet unit.
The method according to claim 1,
Wherein each of the vanes constituting the plurality of vanes comprises:
A mounting portion rotatably mounted on the coupling portion, and a blade piece connected to the mounting portion,
The blade piece is formed by superimposing a plurality of resilient ceramic fins,
Wherein each of the vanes constituting the plurality of vanes comprises:
Is rotated to a second position spaced apart from the neighboring wing portion (12), the first wing portion being rotated relative to the first wing portion at a first position in which at least a portion of the wing portion is overlapped with the neighboring wing portion.
The method according to claim 6,
Wherein each of the plurality of ceramic fins comprises:
Wherein when the impeller rotates, it collides with adjacent ceramic fins and performs disordered movement.
The method according to claim 6,
Wherein the plurality of wings
A first wing portion, a second wing portion and a third wing portion which are disposed adjacent to each other,
Wherein the lengths of the respective blades of the first wing portion, the second wing portion and the third wing portion are different.

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