KR101689481B1 - Filtering apparatus and water treatment system using the same - Google Patents

Filtering apparatus and water treatment system using the same Download PDF

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Publication number
KR101689481B1
KR101689481B1 KR1020150151537A KR20150151537A KR101689481B1 KR 101689481 B1 KR101689481 B1 KR 101689481B1 KR 1020150151537 A KR1020150151537 A KR 1020150151537A KR 20150151537 A KR20150151537 A KR 20150151537A KR 101689481 B1 KR101689481 B1 KR 101689481B1
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South Korea
Prior art keywords
panel
filter
settling
tank
sludge
Prior art date
Application number
KR1020150151537A
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Korean (ko)
Inventor
정필석
김덕현
이상일
강민구
김진수
심재훈
Original Assignee
에스케이하이닉스 주식회사
충북대학교 산학협력단
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Priority to KR1020150151537A priority Critical patent/KR101689481B1/en
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Publication of KR101689481B1 publication Critical patent/KR101689481B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0048—Plurality of plates inclined in alternating directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4626—Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4807—Handling the filter cake for purposes other than regenerating
    • B01D24/4815—Handling the filter cake for purposes other than regenerating for washing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention relates to a filtration device to environment-friendly treat water without using chemicals for improving contaminants (sludge) causing scale and corrosion of circulating cooling water in a field of cooling towers by using a side stream method, and to a water treatment system using the same. The filtration device comprises: a precipitation tank; a reaction tank; a filtration means; and a back washing means.

Description

TECHNICAL FIELD [0001] The present invention relates to a filtration apparatus for improving water quality of a cooling circulation water of a cooling tower, and a water treatment system using the filtration apparatus.

The present invention relates to a cooling tower for improving cooling water quality,

More particularly, the present invention relates to a filtration device for realizing environment-friendly water treatment without using chemicals by a side stream method in order to improve scaling and corrosion of polluted water (collectively referred to as sludge), and a water treatment system using the same .

The floating filter media process, which processes wastewater using filter media, treats solid and organic matters of wastewater by using not only physical treatment by filtration mechanism of floating filter media but also biological treatment by microorganisms attached to floating filter media.

In the floating filter media process, it is possible to treat not only the organic matter but also the nitrogen as well as the organic matter and the microorganisms adhered by the anaerobic tank and the aerobic tank by multi-stage reactor packed with floating filter media, And the area required for the process installation is small.

The prior art regarding wastewater treatment using such filter media is as follows.

Patent Document 10-0712643 (Apr. 23, 2007) [Prior Art 1] An apparatus and method for treating organic matter and nitrogen in sewage, sewage and wastewater using an air floating type biofilter, 0670211 (Floating Media Processing Using Biosorption Mechanism) (Prior Art 2), Published Patent No. 10-2010-0041341 (April 22, 2010) [Non-power Automatic Station Washing filtration device] (Prior Art 3)

As in the prior arts 1 to 3, the desorbed sludge is filled with voids in the filter media, requiring careful attention to backwashing. When applied to wastewater having a high concentration of sludge, there is a problem in using chemicals.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

Sludge washing and backwashing in a side stream manner, and is capable of providing an environmentally friendly water treatment without using chemical agents.

It is another object of the present invention to provide a sloped sedimentation panel having a unique structure in a sedimentation tank to provide excellent sludge sedimentation efficiency.

Another object of the present invention is to provide a liquid loss prevention panel at an outlet portion through which cooling water flows out to prevent the loss of the filter material and smooth return of the filter material that may be released into the outlet portion.

Further, it is an object of the present invention to provide an efficient and environmentally friendly water treatment system by providing a water treatment system having a unique filtration device.

The present filtration apparatus according to the present invention having the above-

A sludge settling tank, a reaction tank provided below the settling tank and including an inlet through which the cooling circulating water flows and an outlet through which the filtered cooling circulating water flows out, a filter medium filled in the reaction tank and connected to the inlet A filtering unit including a pipe type filter unit vertically disposed in the reaction tank and having a filter hole on an outer surface thereof; a jetting unit provided below the filter unit to raise the filter medium along the filter unit; And a backflow unit disposed at the other end of the settling tank, and a backflow unit provided at an upper portion of the backflow unit and blocking the escaping of the raised filter medium and allowing only the sludge to pass therethrough.

The sedimentation tank has a first sedimentation panel having a first contact portion with the backflow portion at one end and a first non-contact portion with the inner wall of the sedimentation tank at the other end, and a second contact portion with the inner wall of the precipitation tank at one end, And a second precipitation panel having a second non-contact portion with the second non-contact portion, wherein the first and second precipitation panels have a downward inclination from the first and second contact portions to the first and second non-contact portions, And the first settling panel and the second settled panel are sequentially arranged.

The outflow portion includes an outflow pipe disposed on one side of a wall surface of the reaction tank and having a cooling circulation water moved by the ejection portion, and an outflow nozzle connected to an upper end of the outflow pipe. And the other end is not in contact with the inner wall of the outflow pipe, and the loss prevention panel is provided so as to sequentially contact one side of the inner wall of the outflow pipe with the other side.

Further, the present water treatment system according to the present invention

A sludge settling tank, a reaction tank provided below the settling tank and including an inlet through which the cooling circulating water flows and an outlet through which the filtered cooling circulating water flows out, a filter medium filled in the reaction tank and connected to the inlet A filtering unit including a pipe type filter unit vertically disposed in the reaction tank and having a filter hole on an outer surface thereof; a jetting unit provided below the filter unit to raise the filter medium along the filter unit; And a backflow unit provided at the upper end of the backflow unit and configured to block the escape of the raised filter medium and to pass only the sludge, and a backwashing unit, An agglomeration device for forming agglomerates from the water and removing contaminants from the cooling circulation water, It comprises a solidification apparatus for solidifying the treated water.

The present invention having the above-

It provides eco-friendly water treatment that does not use chemicals, which can reduce economic cost, decrease facility efficiency due to sludge concentration, and reduce pipe life.

It also contributes to the reduction of sludge separation and discharge process time by the excellent sludge sedimentation efficiency.

In addition, it is possible to provide ease of management by preventing loss of media.

Furthermore, it is possible to provide an efficient and environmentally friendly water treatment system by providing a water treatment system having a unique filtration device.

1 is a structural view showing a structure of a cooling tower to which the present invention is applied.
2 is a structural view of the water treatment system.
3 is a structural view of the present filtration apparatus.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

The present invention relates to a filtration apparatus for realizing environment-friendly water treatment without using chemicals in a side stream method in order to improve pollutants (commonly referred to as sludge) causing scaling and corrosion of cooling circulation water in the field of hot water To a water treatment system.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a filtration apparatus (hereinafter referred to as filtration apparatus F) according to the present invention and a water treatment system (hereinafter referred to as a water treatment system W) using the same will be described in detail with reference to the accompanying drawings.

1 is a view showing a cooling tower structure to which the present invention is applied.

First, the cooling tower will be described with reference to FIG. 1. First, the cooling tower is a heat exchanger for cooling the water used in the condenser of the refrigerator in direct contact with the outdoor air for re- Water) to cool the cooling water.

This cooling circulation water is cooled again, liquefied and reused by a pump as shown in Fig.

In particular, the cooling water contains dissolved ions (Ca, Mg, Cu, etc.) which cause scale by dissolving dust and contaminants coming from the outside, and chemicals injected for water treatment. It is desirable that the cooling circulation water is reused by removing dissolved ions causing corrosion and scale through a proper water treatment process such as the water treatment system W shown in FIG.

FIG. 2 shows the structure of the present water treatment system (W).

As shown in FIG. 2, the water treatment system W includes an aggregation device C, a filtration device F, and a solidification device S.

For each constitution, the flocculation apparatus C forms an aggregate from the incoming cooling circulation water channel portion and removes contaminants from the cooling circulation water, and cools and removes dissolved ions causing scale through electrolysis.

The coagulation apparatus C may include a metal plate and a stirrer. The metal plate is preferably made of a metal material having a high ionization tendency such as aluminum. In order to control the amount of ions (cohesive ions) and hydrogen ions generated in the metal plate It is more preferable that the amount and the interval are adjusted to be controlled. The agitator also agitates the cooling circulating water reacted with the agglomerated ions to form agglomerates (flocs) due to the combination of agglomerated ions and hydroxides, and treats contaminants (compounds of dissolved ions).

Next, the filtration apparatus F processes the above-mentioned flocs to remove sludge contained in the cooling circulation water, and supplies clean cooling circulation water to the cooling tower water tank (storage device for reuse). This filtering apparatus is a key feature of the present invention, and a more detailed description will be given later with reference to FIG.

Next, the solidifying device S is configured to solidify and treat the agglomerates desorbed through the filtration device, and the concentrated sludge is converted into a solid form and discarded.

Hereinafter, a filtration apparatus, which is a core feature of the present invention, will be described in detail with reference to FIG. 3 attached hereto.

Fig. 3 is a view showing the structure of the present filtration apparatus F. Fig. 3, the main filtration apparatus F includes a settling tank 1, a reaction tank 2, a filtration means 3, and a backwash means 4.

(In the following description of the 'filter material 30', it is preferable to deduce through the structure of the filter material 30 shown in FIG. 1 because the illustration of the filter material 30 is omitted in FIG. 3. )

The sludge desorbed from the circulating water in the reaction tank 2 rises and is introduced into the sedimentation tank 1, and the sludge is discharged from the sedimentation tank 1 And is accumulated in the sedimentation unit 100 provided at the bottom of the sedimentation tank 1. The concentration nozzle connected to the sedimentation unit 100 concentrates the sludge and transfers the concentrated sludge to the solidifying apparatus S. [

Next, the reaction tank 2 is provided in the lower part of the sedimentation tank 1, and the sludge is desorbed from the cooling circulation water flowing through the filter medium 30, the clean cooling water flows out and the cooling water tank (storage for re- Device).

As shown in Fig. 3, it is preferable that the one side wall surface of the reaction tank 2 is provided with a charging section so that the charging and withdrawing of the filter media 30 can be facilitated.

Next, the filtration means 3 is connected to the filter medium 30 and the inflow portion 21 filled in the reaction tank 2 with a configuration for desorbing the sludge contained in the cooling circulating water flowing into the reaction tank 2 And a pipe type filter unit (31) arranged vertically inside the reaction tank (2) and having a filter hole (310) on its outer surface.

It is preferable that the filter medium 30 has a specific gravity larger than that of water and a sufficiently large self-hardness. Here, a large self-hardness means a material that is considered 'hard' under the common sense such as sand, pebbles and soybeans, , But Danysand can be a representative example.

Since the filter unit 31 is formed in a pipe shape and vertically disposed inside the reaction tank 2, the introduced cooling water circulates along the filter unit 31, and at this time, The cooling circulation water is injected into the filter hole 310 so that the cooling circulation water is naturally sprayed toward the filter material 30 filling the reaction tank 2.

In addition, the filter hole 310 is made to collide with the filter hole 310 when the filter material 310 such as sand flows and coalesce, and the large air bubbles generated therein are crushed and converted into fine particles, .

Next, the backwashing means 4 functions to raise the filter medium 30 in the reaction tank 2 and the cooling circulation water to the lower air injection system to thereby desorb the sludge. The backwashing means 4 works together with the filtration means 3 (Sludge desorption) of the continuous cooling circulation water through the up-and-down circulation of the filter medium 30.

This backwashing means 4 is provided below the filter portion 31 and has a jetting portion 41 for raising the filter medium 30 along the filter portion 31. One end of the jetting portion 41 is connected to the filter portion 31, And a permeable portion 45 provided on the backflow portion 43 and blocking the escape of the raised filter medium 30 and allowing only the sludge to pass therethrough.

3, the jetting unit 41 includes a jetting nozzle 411 provided under the filter unit 31. The jetted air from the jetting nozzle 411 raises the filter medium 30 .

The jetting section 41 further includes a guide member 413 coupled to the lower portion of the filter unit 31 and having a larger diameter toward the lower side. The guide member 413 guides the air injected from the injection nozzle 411 to the inside of the filter unit 31 to increase the efficiency of raising the filter media 30 by the air to be injected.

In addition, the jetting section 41 further includes an opening / closing device that is opened by a predetermined air pressure to prevent the filter media 31 inside the filter section 31, which has been lifted at the time of stopping washing, from entering the reaction tank 2 again desirable.

3, the backflow section 43 is connected to the filter section 31 at one end and is located inside the settling tank 1 and is lifted along the filter section 31 and connected to the sludge- 30 to the settling tank 1 side.

The backflow section 43 is provided on the inner side and is connected to the filter section 31 at one end and to the outside of the uprising pipe 431 and the uprising pipe 431 connected to the settling tank 1 and connected to the reaction vessel 2 And a downcomer 433. The filter medium 30 rising along the filter unit 31 is moved to the settling tank 1 through the uprising pipe 431 and then the sludge is introduced into the settling tank 1 and the filter media 30 is again supplied to the downcomer 433 To the inside of the reaction tank 2.

As shown in FIG. 3, the permeable portion 45 is provided on the upstream portion 43 and blocks the escape of the rising filter medium 30 and passes only the sludge. The permeable portion 45 includes a return hole 451 and a blocking net .

The return hole 451 is formed in the side surface of the transmitting portion 45 and is formed to have a size larger than that of the filter material 30. [ The filter material 30 rising through the return hole 451 descends again while the sludge is desorbed and is introduced into the reaction tank 2.

The blocking net is formed at the upper end of the permeable portion 45. The blocking net is larger than the sludge and smaller than the filter medium 30 so that the filter medium 30 is not introduced into the settling tank 1, (1).

In the main filtration apparatus F having the above structure, the introduced cooling circulation water is jetted into the reaction tank 2 through the filter hole 310 formed on the outer surface of the filter unit 31 while descending along the filter unit 31, The sludge is desorbed by the filter media 30 and supplied to the cooling tower water tank (storage device for reuse) through the outlet 23.

The filter material 30 with the sludge is lifted up along the filter unit 31 by the jetting unit 41 and is returned through the backflow unit 43 to the top of the filtration unit 30 in order to reverse the adhesion of the desorbed sludge to the filter media 30. [ The sludge is introduced into the settling tank 1 by the permeable portion 45 and the filter material 30 is lowered again and flows into the reaction tank 2.

Through this process, the filtration device F can provide continuous backwashing through the circulation of the filter media 30, which improves the cleaning efficiency and contributes to cost savings by reusing the cooling circulation water as described above have.

In the meantime, the present invention has several key features through its unique structure. Hereinafter, another feature of the filtration device F will be described with reference to FIG. 3 attached hereto.

As shown in FIG. 3, the present invention is characterized in that the reaction tank 2 includes an inlet 21 into which cooling water flows and an outlet 23 through which filtered cooling water flows out.

3, the inflow section 21 includes an inflow nozzle 211 through which the cooling circulation water flows and an inflow tube 213 through which the introduced cooling circulation water flows into the reaction tank 2. [

3, the outflow section 23 is provided at one side of the inner wall surface of the reaction tank 2 and is connected to an outflow pipe 233 through which the cooling circulation water rising by the jetting section 41 moves and an outflow pipe 233 And an outlet nozzle 231 connected to the upper end.

The characteristic feature of the present invention is that the vertical position of the inlet 21 in the reaction tank 2 is formed higher than the vertical position of the outlet 23. Due to the height difference between the inlet 21 and the outlet 23, the introduced cooling circulation water can be easily discharged to the outlet side, which contributes to an increase in filtration efficiency.

Next, as shown in FIG. 3, the present invention is characterized in that a settling tank 1 is provided with a first contact portion 111 at one end thereof with a counterflow portion 43 and a first settling portion 111 at a second end thereof having a first noncontact portion with the inner wall of the settling tank 1, And a second precipitation panel 12 having a second contact portion 121 between the inner wall of the settling tank 1 and one end of the panel 11 and a second non-contact portion 123 between the counterflow portion 43 and the other end, And the inclined deposition panel 10 is provided.

The first and second deposition panels 11 and 12 have downward slopes from the first and second contact portions 111 and 121 to the first and second non-contact portions 113 and 123, The panel (11) and the second settling panel (12) are sequentially arranged.

The inclined precipitating panel 10 induces the sludge to be settled to move along the first settling panel 11 and the second settled panel 12 having a downward inclination, so that the settling can be performed more easily, Height effect.

Particularly in FIG. 3, it can be seen that the through holes p through which the sludge settled in the first settling panel 11 and the second settling panel 12 are provided are provided, 11 or the sludge accumulating on the inclined surface of the second settling panel 12 to prevent sedimentation efficiency from being lowered.

Next, as shown in FIG. 3, the present invention is characterized in that the outflow pipe 233 has an oil prevention panel 50 having one end contacting the inner wall of the outflow pipe 233 and the other end contacting the inner wall of the outflow pipe 233 .

The loss prevention panel (50) is provided so as to sequentially contact one side of the inner wall of the outflow pipe (233) and the other side.

More specifically, one of the loss prevention panels 50 is attached to one side of the inner wall of the outflow pipe 233, and the loss prevention panel 50 immediately below the one is attached to the other side of the inner wall of the outflow pipe 233 And is attached in a zigzag form.

The loss prevention panel 50 plays a role of preventing the rising of the filter media 30 when a part of the filter media 30 to be lifted along the filter part 31 is lifted up through the outflow tube 233.

As shown in FIG. 3, the loss prevention panel 50 has a downward inclination in a direction not contacting the inner wall of the outflow pipe 233, so that the raised filter medium 30 can be easily lowered again desirable.

Next, as shown in FIG. 3, according to the present invention, a dispersion unit 33 is provided below the downfalling pipe 433 of the backflow unit 43 so that the lowering filter media 30 can be uniformly injected into the reaction tank 2 .

The dispersion unit 33 may be coupled to the filter unit 31 and includes a rotation axis 331 forming a rotation center and a dispersion wing 333 radially coupled to the rotation axis 331.

Also, in order to increase the dispersion efficiency, the dispersing vane 333 preferably has a slope toward one side, and the upper end is preferably provided with reinforcing fins (not shown) for reinforcement.

In the detailed description of the present invention, the illustration and description of the concrete drawing of the flocculation apparatus C and the solidification apparatus S constituting the water treatment system W are omitted, but those skilled in the art can understand and infer .

In the detailed description of the present invention, the expressions such as washing, desorption, separation, filtration, etc., are preferably properly interpreted in accordance with the context, and this does not serve as a confusing factor in understanding the present invention .

In addition, the present invention described with reference to the accompanying drawings can be variously modified and changed by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

W: Water treatment system
C: Flocculation device S: Solidification device
F: Filtration device
1: settling tank
10: slope precipitation panel
11: First precipitation panel
111: first contact portion 113: first non-contact portion
12: Second precipitation panel
121: second contact portion 123: second non-contact portion
2: Reactor
21: inlet 23: outlet
233:
3: Filtration means
30: Filter media
31: filter unit 310: filter ball
4: backwash means
41: jetting part 43:
45:
50: Loss prevention panel

Claims (4)

Sedimentation tank where sludge sedimentation takes place;
A reaction tank provided below the settling tank and including an inlet through which the cooling circulation water flows and an outlet through which the filtered cooling circulation water flows out;
A filtering means including a filter material filled in the reaction tank and a pipe type filter portion connected to the inlet portion and vertically disposed inside the reaction tank and having a filter hole on an outer surface thereof; And
A filter unit provided at a lower portion of the filter unit to raise the filter unit along the filter unit, a counterflow unit having one end connected to the filter unit and the other end disposed in the settling tank, And a permeate portion for passing only the sludge;
.
The method according to claim 1,
The first settling panel includes a first settling panel having a first contact part with the backflow part at one end and a first non-contact part with the inner wall of the settling tank at the other end, and a second contact part with the inner wall of the settling tank at one end, And a second settling panel having a second non-contact portion of the obliquely settling panel,
The first and second precipitating panels have a downward inclination from the first and second contact portions to the first and second non-contact portions,
Wherein the first settling panel and the second settled panel are sequentially arranged.
The method according to claim 1,
The outlet
An outflow pipe arranged on one side of a wall surface of the reaction tank for moving the cooling circulation water raised by the jetting section, and an outflow nozzle connected to an upper end of the outflow pipe,
Wherein the outlet pipe is provided with a loss prevention panel having one end contacting the inner wall of the outflow pipe and the other end contacting the inner wall of the outflow pipe,
Wherein the loss prevention panel is configured to sequentially contact one side of the inner wall of the outflow pipe with the other side.
A filtration apparatus according to claim 1;
An agglomeration apparatus for forming agglomerates from the incoming cooling circulation channel portion and removing contaminants from the cooling circulation water;
A solidifying device for solidifying and treating the removed agglomerates;
The water treatment system comprising:
KR1020150151537A 2015-10-30 2015-10-30 Filtering apparatus and water treatment system using the same KR101689481B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR20200037919A (en) 2018-10-02 2020-04-10 주식회사 경인기계 Water treatment apparatus for cooling tower and cooling tower
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Publication number Priority date Publication date Assignee Title
CN109384329A (en) * 2017-08-02 2019-02-26 山东圣源碧澄环保科技有限公司 A kind of sewage treatment primary filter and its operating method
US11482345B2 (en) * 2017-12-04 2022-10-25 Ge-Hitachi Nuclear Energy Americas Llc Methods of constructing nuclear power plants with geothermal passive cooling
KR20200037919A (en) 2018-10-02 2020-04-10 주식회사 경인기계 Water treatment apparatus for cooling tower and cooling tower

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