KR101796775B1 - Water treatment apparatus - Google Patents

Abstract

A water treatment apparatus according to an embodiment of the present invention includes: a housing having upper and lower openings; A plurality of multiple common module modules disposed within the housing for filtering the contaminated water in the housing; A collecting unit disposed at both ends of the multiple porous film module and inserted and fixed in the housing and collecting the treated water purified in the multiple porous film module; And an outlet connected to the water collecting unit, the outlet being formed at one side or both sides of the outer circumferential surface of the housing and discharging treated water purified to the outside.

Description

[0001] WATER TREATMENT APPARATUS [0002]

The present invention relates to a multi-cavity flat membrane, a module thereof, and a water treatment apparatus including the same, and more particularly, to a water treatment apparatus including a flat membrane having a plurality of hollows formed therein, and a module in which the flat membrane is integrated.

Wastewater is purified through sewage treatment plants and discharged into rivers. In sewage treatment plants, various methods are used to purify wastewater. Generally, the separation membrane is divided according to the wastewater treatment method. The separation membrane is largely composed of a dip membrane and a hollow fiber membrane.

A flat panel module (hereinafter referred to as a flat panel module) used as an immersion type is a device formed by inserting a film formed on a flat surface or a sheet into a device. The flat membrane module not only does not adhere well to contaminants, but also easily removes contaminants. Compared to a hollow fiber membrane module, there is little risk of damaging the membrane during operation, which reduces the operation cost. Therefore, Industrial wastewater treatment, reuse, and pretreatment of reverse osmosis membrane.

However, it is known that the flat membrane module has low water treatment efficiency because the treatment flow rate is small because the suction pressure direction and the water flow direction cross each other in the separation membrane as a whole. In addition, the nonwoven fabric positioned between the separation membrane and the support simply blocks the adhesion of the separation membrane and the support, which interferes with the flow of the treatment water, which causes the treatment capacity per unit area to be limited.

In order to fabricate the flat panel module, heat fusion is applied to a panel having a thickness of at least 4 mm and a thickness of typically 8 mm. Therefore, it is known that the degree of integration is lower than that of the hollow fiber membrane module. In order to produce a flat membrane, a polymer solution must be cast on a nonwoven fabric or a woven fabric and a separate nonwoven fabric or woven fabric functioning as a spacer must be placed in order to prevent it from sticking to the flat membrane and the panel and disturbing the flow path of the treated water. Accordingly, the cost of the hollow fiber membrane can be increased by using subsidiary materials such as panels and nonwoven fabrics or woven fabrics.

The flat membrane module has advantages of less fouling due to the air cleaning effect due to the regular arrangement compared to the hollow fiber membrane, but it is inconvenient to wash the outside from the outside if membrane contamination is difficult due to difficulty of backwashing .

On the other hand, recently, a flat membrane module capable of backwashing has been developed, but it is related to a flat membrane module for supporting a flat membrane to prevent swelling of the flat membrane in the backwashing process, It is difficult to expect durability (Patent Document 1).

Accordingly, the present inventors have found that, when a flat membrane is formed and a large number of hollows are formed in the flat membrane, a flat membrane capable of performing backwashing, which is similar to a hollow fiber membrane, can be obtained, And thus the present invention has been accomplished.

KR2014-0001528 a

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-cavity flat membrane capable of realizing the advantages of a hollow fiber membrane while being capable of being backwashed, a module thereof, And to provide a water treatment apparatus.

The present invention provides a water-repellent multipole membrane in which a plurality of hollows are arranged in a row.

In addition, the present invention provides a multi-layer film module for water treatment in which the multi-layer film is integrated.

According to another aspect of the present invention, there is provided a water treatment apparatus comprising: a housing having upper and lower openings;

A plurality of multiple common module modules disposed within the housing for filtering the contaminated water in the housing; A collecting unit disposed at both ends of the multiple porous film module and inserted and fixed in the housing and collecting the treated water purified in the multiple porous film module; And a discharge port connected to the water collecting unit and formed at one or both sides of the outer circumferential surface of the housing for discharging treated water purified to the outside.

The multi-layer film module may include: a first multi-layer film formed in a hollow shape; And a second multilayer film formed so as to be continuously disposed in contact with an outer peripheral surface of the first multilayer film. It is preferable that the first multilayer film and the second multilayer film are formed so as to be sequentially repeated.

In addition, it is preferable that the diameters of the first multilayer film and the second multilayer film are equal to each other.

In addition, the diameters of the first and second multi-ply films may be different from each other.

A first multilayer film formed in a hollow shape; And a second multilayer film formed so as to be continuously disposed in contact with an outer peripheral surface of the first multilayer film. It is preferable that the first multilayer film and the second multilayer film are formed so as to be sequentially repeated.

Also, the diameters of the first multi-ply film and the second multi-ply film are formed to be equal to each other.

In addition, the diameters of the first and second multi-ply films may be different from each other.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed in a conventional, dictionary sense, and should not be construed as defining the concept of a term appropriately in order to describe the inventor in his or her best way. It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

A multi-cavity flat membrane according to an embodiment of the present invention, a module thereof, and a water treatment apparatus including the multi-cavity membrane module may include a multi-cavity module having a multi-cavity structure by sequentially and repeatedly arranging the first multi- .

Also, since the first multiple coplanar film and the second multiple coplanar film are sequentially and repeatedly disposed, a separate nonwoven fabric or a film coated on the woven fabric is not used.

Also, there is an effect of providing a multiple porous film module with improved filling density by sequentially and repeatedly arranging the first multiple porous film and the second multiple porous film.

In addition, since the first multilayer flat film and the second multiple multilayer flat film are sequentially and repeatedly arranged, the specific surface area is larger than that of the existing flat film.

In addition, by repeatedly arranging the first multiple porous film and the second multiple porous film repeatedly, the surface of the multiple porous film has uniform micro pores.

In addition, by repeatedly arranging the first multiple porous film and the second multiple porous film in order, the entire surface of the multiple porous film with respect to the pores is uniform.

Further, there is an effect of providing a water treatment apparatus capable of backwashing by sequentially and repeatedly arranging the first multiple sandwich membrane and the second multiple sandwich membrane.

1 is a perspective view of a multi-layer flat panel module according to an embodiment of the present invention;
Figure 2 is a side view of Figure 1;
3 is an illustration of a water treatment apparatus according to another embodiment of the present invention.
4 is a view illustrating an example of assembling a collecting and treating section in a multi-layer film module according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 is a side view of FIG. 1, FIG. 3 is an illustration of a water treatment apparatus according to another embodiment of the present invention, and FIG. 4 is a cross- FIG. 2 is a view illustrating an example in which a collecting water treatment unit is assembled to a multi-layer flat membrane module according to an embodiment of the present invention;

Referring to FIGS. 1 and 2, the multi-layer film module according to one embodiment of the present invention includes: a first multi-layer film 110 formed in a hollow shape; And a second multiple porous film 130 formed to be continuously disposed in contact with the outer peripheral surface of the first multiple porous film 110. The first multiple porous film 110 and the second multiple porous film 130 And is formed so as to repeat sequentially.

The multi-layer flat membrane module 100 is formed by integrating a multi-layer film for water treatment. That is, a plurality of hollows are formed in a line in the first multilayer film 110 and the second multilayer film 130. The first multi-layer film 110 and the second multi-layer film 130 are formed in a hollow shape. The first multi-layer film 110 and the second multi-layer film 130 separate and remove liquids, particularly contaminants and bacteria contained in water, on the surface. The first multi-layer film 110 and the second multi-layer film 130 have fine holes formed on the surface thereof. The first multi-layer film 110 and the second multi-layer film 130 move through the space formed at the center by flowing the raw water through the holes. Therefore, since the first porous membrane 110 and the second porous membrane 130 do not pass through holes (pores) formed on the surface of various kinds of foreign substances, only clean water moves to the center of the hollow.

The material of the first multi-porous film 110 and the second multi-porous film 130 may include a polymer including a vinyl-based polymer and an olefin polymer. The hydrophobic polymer may be selected from the group consisting of polyethylene (PE) resin, polypropylene (PP) resin, PVC resin, polysulfone resin, polyether sulfone resin, sulfonated polysulfone resin, polyvinylidene fluoride (PVDF) A polyacrylonitrile (PAN) resin, a polyimide resin, a polyamideimide resin, a polyetherimide, and the like can be used, but are not limited thereto. These may be used alone or in combination of two or more. And preferably a homopolymer of polyvinylidene fluoride (PVDF) or a fluorine-containing polymer such as polyvinylidene fluoride (PVDF) copolymer.

The first multi-layer film 110 and the second multi-layer film 130 are made of polyamide or the like and have a number of nanofiltration membranes having micropores of 0.0005 to 0.001 탆 inside thereof, Trace elements, such as arsenic, cadmium, lithium, rubidium, iodine, magnesium, strontium, bromine and uranium, You may.

Referring to FIG. 2, it is appropriate that the first multilayer film 110 and the second multilayer film 130 are arranged in a straight line and are repeated N times successively. Referring to the diameter of the center of the first multilayer film 110 and the second multilayer film 130, the diameters of the first multilayer film 110 and the second multilayer film 130 are equal to each other (See Fig. 2 (a)). This allows the multi-layer film module 100 to have a constant pore structure. That is, the first multi-layer film 110 and the second multi-layer film 130 have a certain distance by removing the uneven portions. Therefore, in the multi-layer film module, the first multi-layer film 110 and the second multi-layer film 130 have a constant pore structure.

 Referring to FIG. 2B, the diameter of the first multi-layer film 110 and the thickness of the second multi-layer film 130 may be different from each other. That is, the first multi-layer film 110 and the second multi-layer film 130 have an effect of increasing the specific surface area by removing the uneven portions. Therefore, the multi-layer film module 100 has an effect of increasing the processing efficiency of the first multi-layer film 110 and the second multi-layer film 130.

2, the diameter of the first multiple porous film 110 and the diameter of the second multiple porous film 130 are equal to each other, and the first multiple porous film 110 and the second The multi-ply flat membrane 130 uniformly removes the spacing of the irregularities. In order to increase the treatment efficiency of the first multi-layer film 110 and the second multi-layer film 130, the multi-layer film module 100 is formed so that the surface of the multi-layer film module 100 has uniform pores to be.

Referring to FIG. 3 or 4, the water treatment apparatus 10 according to another embodiment of the present invention includes a housing 200; A plurality of multiple hollow module modules 100 disposed inside the housing 200 for filtering the contaminated water in the housing and a plurality of hollow module modules 100 disposed at both ends of the multiple hollow module module 100, And a water collecting unit 150 connected to the water collecting unit 150 and configured to collect the treated water purified by the multiple porous film module 100. The water collecting unit 150 is installed at one side or both sides of the outer circumferential surface of the housing 200 And an outlet 210 for discharging the treated water to the outside.

The housing 200 provides a space in which the multiple hollow film module 100 is disposed. The housing 200 protects the multiple cavity module 100 from external impact. A plurality of housings 200 are fixedly mounted on a frame (not shown), and the housing 200 is installed by dipping in contaminated water.

It is appropriate that the housing 200 is formed in a rectangular shape for easy installation. This is not intended to limit the shape of the housing 200. The housing 200 is formed by opening the upper part and the lower part. Air enters the housing 200 from the bottom. At this time, turbulent flow occurs in the housing 200 along the outer circumferential surface of the multilayer film module 100 to be described later. At this time, the turbulence is formed along the concavo-convex shape of the side surface of the multi-layer film module 100. The housing 200 provides a fixing part 250 to which the multi-module module 100 is inserted and fixed.

A plurality of the fixing portions 250 may be formed at even intervals. The fixing portions 250 are disposed on both sides of the inside of the housing 200 in pairs. That is, the fixing portion 250 is formed by being arranged in a pair so as to fix and align the multiple common film module modules 100. The fixing part 250 is fixed to each of the corresponding surfaces by sandwiching the multiple common film module 100 thereon. The fixing part 250 is arranged such that a plurality of slit grooves (not shown) are concave and convex so that the multiple flat film module 100 is inserted and fixed. It is noted that this is not intended to limit the fixing method of the fixing part 250 and the multi-layer film module 100 to the sliding method. The slit grooves are arranged to adjust the number of the multiple membrane modules 100 set by the size of the water treatment apparatus 10, the filtration throughput, and the like.

In addition, the housing 200 may be formed with a fixture to prevent the multiple air module 100 from being separated by the introduced air. The fixture prevents separation of the multi-layer flat panel module 100. That is, the fixture prevents the multi-ply membrane module 100 from being displaced upward or downward under water pressure and air pressure. That is, the fixture fixes the multi-layer flat panel module 100 and the housing. It is appropriate that the fixture is uniformly disposed on the upper portion and the lower portion of the housing 200.

The multi-layer flat panel module 100 is formed by connecting N pieces of the first multi-layer film 110 and the second multi-layer film 130 described above. At this time, in the multi-layered film module 100, N number of the first multi-layered film 110 are arranged on both sides of the first multi-layered film 110. The multi-layer flat panel module 100 has a length to be inserted and fixed in the longitudinal direction of the housing 200 (see FIG. 4). In addition, the multi-layer film module 100 may be inserted in the transverse direction or the longitudinal direction with respect to the longitudinal direction of the housing 200.

The multi-layer flat panel module 100 is formed to be disposed inside the housing 200. A plurality of multi-layer flat panel modules 100 are disposed inside the housing 200. The multi-layer flat membrane module 100 separates the contaminated water flowing from the lower part of the housing 200 through impurities and treated water. In the multi-layer flat membrane module 100, the first multi-layer film 110 and the second multi-layer film 130 are disposed at both ends thereof.

The water collecting unit 150 connects the treated water purified in the first multiple porous film 110 and the second multiple porous film 130 to a discharge port 210 to be described later. The water collecting unit 150 forms an adhesive along the outer circumferential surface of the multiple porous film module 100. That is, the water collecting unit 150 is fixed to the adhesive of the multiple hollow film module 100.

The water collecting unit 150 also functions to fix the first multiple porous film 110 and the second multiple porous film 130 to the housing 200, respectively. The water collecting unit 150 is inserted into the slit groove and is disposed inside the housing 200. At this time, the water collecting unit 150 is formed by disposing a rubber ring for preventing shaking when inserting into the slit grooves.

The discharge port 210 is formed on the outer peripheral surface of the housing. The discharge port 210 is formed on one side or both sides of the outer circumferential surface of the housing 200. The discharge port 210 connects the purified treated water to the outside. At this time, the discharge port 210 is formed on the outer circumferential surface of the housing 200 in communication with the water collecting unit 150.

Although the technical idea of the present invention has been specifically described according to the above preferred embodiments, it is to be noted that the above-described embodiments are intended to be illustrative and not restrictive. 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 and scope of the invention.

10: water treatment apparatus 100: multi-layer flat membrane module.
110: first multilayer film 130: second multilayer film
150: water collecting part 200: housing
210:

Claims (9)

delete delete A housing having upper and lower openings;
A plurality of multiple common module modules located inside the housing and including concavities and convexities on the outer circumferential surface and filtering the contaminated water inside the housing;
A plurality of collecting processing units disposed at both ends of the plurality of multiple porous film module, respectively, inserted and fixed in the inside of the housing, and collecting the treated water purified from the multiple porous film module; And
And a discharge port connected to the plurality of the water collecting processing sections and formed at one or both sides of the outer circumferential surface of the housing and discharging treated water purified to the outside,
The multi-layer film module includes:
A first multilayer film formed in a hollow shape; And
And a second multilayer film formed continuously in contact with an outer peripheral surface of the first multilayer film and formed in a hollow shape,
The first multi-layered film and the second multi-layered film have different diameters,
Wherein the first multi-layer film and the second multi-layer film are formed so as to be sequentially repetitively formed, the first multi-layer film and the second multi-layer film are sequentially repeated, Purifying water treatment device.
The method of claim 3,
And a fixing unit for fixing the water collecting unit to the housing,
Wherein the fixing portion includes a plurality of grooves each accommodating a plurality of the water collecting and processing portions.
5. The method of claim 4,
Wherein the fixing portion further comprises a rubber ring for coupling the water collecting portion and the housing.



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