KR20180005556A - Apparatus for purifying water - Google Patents

Abstract

The present invention is to provide a water treatment device capable of preventing damage of hollow fiber membranes and increasing the lifespan of the hollow fiber membranes. A water treatment apparatus of the present invention comprises: an air supply pipe supplying air; an air diffuser unit diffusing air supplied from the air supply pipe; a water collection unit located on the air diffuser unit and collecting treated water; a water collection pipe transferring the treated water collected in the water collection unit; a plurality of reverse U-shaped hollow fiber membranes of which both ends are potted in the water collection unit; and a plurality of fluid holes which is inserted into a top portion of the reverse U-shaped hollow fiber membrane, and has a plurality of fluid holes, and of which one end is fixed to the air supply pipe and the other end is fixed to the water collection pipe.

Description

[0001] APPARATUS FOR PURIFYING WATER [0002]

The present invention relates to a water treatment apparatus.

In the case of the submerged membrane module, air is continuously injected (aeration) in order to prevent the contamination of the microbial reaction tank or the raw water tank from adhering to the surface of the membrane to deteriorate the filtration performance, . However, there is a limitation in cleaning the membrane only by aeration, and a method of increasing the fluidity of the membrane by applying the U-shaped hollow fiber membrane has been proposed. However, in this case, there is a problem that the hollow fiber membrane is excessively fluid, or the hollow fiber membrane is easily damaged due to friction with the fixed part, and the lifetime of the hollow fiber membrane is thereby reduced.

On the other hand, in order to increase the water treatment efficiency, it is necessary to increase the density of the membrane, and efforts are being made to reduce the volume of the water treatment apparatus.

Accordingly, there is a need for a water treatment apparatus that can prevent damage to the hollow fiber membrane, prolong the life of the hollow fiber membrane, and enable integration, thereby increasing water treatment efficiency.

Prior art related to this is disclosed in Korean Patent Publication No. 10-2003-0020715.

An object of the present invention is to provide a water treatment apparatus capable of preventing the damage of the hollow fiber membrane and increasing the lifetime of the hollow fiber membrane.

Another object of the present invention is to provide a water treatment apparatus capable of integrating and improving the water treatment efficiency.

The above and other objects of the present invention can be achieved by the present invention described below.

One aspect of the present invention relates to a water treatment apparatus.

In an embodiment, the water treatment apparatus includes an air supply pipe for supplying air, an acid portion for generating air supplied from the air supply pipe, a collecting portion for collecting treated water, located on the acid portion, Shaped hollow fiber membrane, and a plurality of fluid holes, one end of which is connected to the air supply pipe, and the other end of which is connected to the air supply pipe And the other end of which is fixed to the water collecting pipe.

The air supply pipe and the support member are in fluid communication so that air from the air supply pipe can be generated through the fluid hole.

In one embodiment, the air supply tube includes a support member engagement portion in fluid communication with the support member, wherein the collection pipe includes a support member securing portion for securing the support member, the support member may be tubular .

The support member may be circular in cross section.

In another embodiment, the air supply pipe and the water collecting pipe each include a support member fixing portion for fixing the support member, and the support member can be opened at the lower portion.

The support member may have an arcuate cross section.

The length of the hollow fiber membrane may be in the range of the following formula (1).

[Formula 1]

(2 x I) + 50? Length of hollow fiber membrane (mm)? (2 x I) + 150

(Where, I is the interval (unit: mm) between the collecting part and the supporting member)

The fluid holes may be between 1 mm and 20 mm in diameter.

In yet another embodiment, an air diffuser may be further included between the support member and the collection section.

The diffusing tube has a plurality of fluid holes, and the air supply tube and the diffusing tube are in fluid communication so that air from the air supply tube can be diffused through the fluid holes.

Wherein the air supply pipe includes a plurality of support member coupling regions that can be coupled to the support member in fluid communication with the support member, wherein the water collection pipe is formed at the same height as the respective support member engagement regions, A plurality of fixed areas may be included.

The air supply pipe and the water collecting pipe may include a plurality of support member fixing areas formed at the same height to fix the support member.

The plurality of support member engaging regions or the plurality of support member securing regions may be formed at an interval of 2 mm to 50 mm.

The support member engagement portion may include an open flange.

The support member fixing part may include a blind flange.

An object of the present invention is to provide a water treatment apparatus capable of preventing damage to a hollow fiber membrane, increasing the lifetime of the hollow fiber membrane, and integrating the same, thereby improving water treatment efficiency.

1 schematically shows a water treatment apparatus according to one embodiment of the present invention.
2 schematically shows a top view of a water treatment apparatus according to one embodiment of the present invention.
Figure 3 schematically shows a support member according to one embodiment of the invention.
4 schematically shows a support member according to another embodiment of the present invention.
Figure 5 schematically illustrates a support member coupling according to one embodiment of the present invention.
6 schematically shows a support member fixing part according to one embodiment of the present invention.
7 schematically shows a water treatment apparatus according to another embodiment of the present invention.
8 schematically shows an air supply pipe in which a plurality of support member engagement regions are formed according to an embodiment of the present invention.
9 schematically shows a water collecting pipe in which a plurality of support member fixing areas are formed according to an embodiment of the present invention.

In order to more clearly describe the present invention, some terms will be used with the following meaning.

In the present invention, the term "insert" may mean inserted through a plurality of hollow fiber membranes.

In the present invention, the 'inner side' of the hollow fiber membrane means a portion surrounded by the inverted U-shaped hollow fiber membrane.

In the present invention, the 'distance between the catching part and the supporting member' means the distance between the upper surface (supporting member direction) of the catching part and the highest point of the supporting member.

In the present invention, the 'length of the hollow fiber membrane' means the length of the hollow fiber membrane exposed to the outside of the collecting part.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. However, the techniques disclosed in this application are not limited to the embodiments described herein but may be embodied in other forms.

Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of this invention to those skilled in the art. In the drawings, the width, thickness, and the like of the components are enlarged in order to clearly illustrate the components of each device. Also, while only a portion of the components is shown for convenience of explanation, those skilled in the art will readily recognize the remaining portions of the components.

When an element is described at the point of view of the general description of the drawings and an element is referred to as being located above or below another element, it is to be understood that the element may be located immediately above or below another element, Quot; can be intervened. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In the drawings, the same reference numerals denote substantially the same elements.

It should be understood, however, that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and the terms "comprise" Acts, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof It should be understood that it does not.

In the present specification, 'X to Y' representing the range means 'X or more and Y or less'.

Hereinafter, a water treatment apparatus according to one embodiment of the present invention will be described with reference to Figs. 1 and 2. Fig. FIG. 1 schematically shows a water treatment apparatus according to one embodiment of the present invention, and FIG. 2 schematically shows a plan view of a water treatment apparatus according to an embodiment of the present invention.

1, the water treatment apparatus 100 according to an embodiment of the present invention includes an air supply pipe 10 for supplying air, a acid unit 20 for generating air supplied from the air supply pipe 10, A water collecting pipe 40 located on the acid base 20 and collecting the treated water, a collecting pipe 40 for transferring the treated water collected in the collecting part 30, an inverted U shape, And a plurality of fluid holes (55) inserted into the top of the inverted U-shaped hollow fiber membrane, one end of which is fixed to the air supply pipe (10) And a support member fixed to the water collection pipe (40).

air Feeder

The air supply pipe 10 serves to supply air generated from the acid part 20 from the outside. The amount of air supplied by the air supply pipe 10 can be appropriately adjusted according to the specifications of each part of the water treatment apparatus, the shape of the supporting member, the state of the hollow fiber membrane, and the like.

The air supply pipe 10 is connected to the support member 50 via the support member engaging portion when the support member 50 is in the shape of a tube and supplies air to the support member 50 to form the fluid hole 55 The air can also be generated.

The diameter of the air supply pipe 10 may be 30 mm to 150 mm, specifically 50 mm to 70 mm. It is possible to sufficiently supply the air generated in the acid portion 20 and / or the support member 50 in the above range, and the air pressure can be appropriately maintained.

Meanwhile, the air supply pipe may include a support member coupling portion or a support member fixing portion for mounting a support member to be described later. In this specification, the support member coupling portion means a member formed to allow fluid communication between the support member and the air supply pipe while receiving the support member, and the support member fixing portion has a member that performs the function of mounting the support member without fluid communication it means. The support member coupling portion and the support member fixing portion will be described later.

Acid donation

The acid part 20 prevents the sludge accumulated in the hollow fiber membrane 60, the water collecting part 30 and the support member 50 by distributing the air introduced from the air supply pipe 10 through the acidic hole 25, It also serves to remove accumulated sludge. Also, accumulation of sludge in the water treatment apparatus 100 can be prevented by the flow of the fluid formed by the acid.

The acidic holes 25 may be applied in various forms according to purposes and specifications of the water treatment apparatus 100. Specifically, they may be arranged in a line at regular intervals, arranged in zigzags, or arranged in two or more rows, and the intervals may be gradually increased or gradually decreased, and the intervals may increase or decrease toward the center , But is not limited thereto.

The shape and diameter of the acid orifice 25 may also be variously applied to the purposes and specifications of the water treatment apparatus 100 and are not particularly limited.

Housekeeper

The collecting section (30) is located on the acid base (20) and collects the treated water filtered by the hollow fiber membrane (60).

Particularly, the water treatment apparatus 100 of the present invention has a merit that a water treatment apparatus can be integrated by reducing the volume of the water treatment apparatus 100 by including a single water collecting unit 30. The integration of the water treatment apparatus means that the water treatment efficiency is high and the restriction of the place where the water treatment apparatus is installed is low.

The water collecting section 30 is connected to both ends of the hollow fiber membrane 60 and has a better collecting efficiency than the water treatment apparatus having only one end of the hollow fiber membrane. The water treatment apparatus can be integrated.

The water collecting section 30 is located at the lower part of the water treatment apparatus 100 so as to be adjacent to the acid base section 20. This makes it possible to more effectively prevent accumulation of sludge compared to the collecting section located at the upper part. The width of the base portion 20 may be wider than the catch portion 30. [

The width D _c of the catch 30 may be between 10 mm and 100 mm, specifically between 20 and 70 mm. In the above range, the balance between the collection efficiency and the integration of the water treatment apparatus is excellent.

In addition, the difference between the widths D _d of the collector 30 and the acid base 20 may be 5 mm to 100 mm, specifically 10 mm to 50 mm. In the above-mentioned range, not only the cleaning effect by the acid is excellent, but also the water treatment apparatus can be integrated.

There is no limitation on the material of the collecting part 30 as long as it has a predetermined mechanical strength and durability. As an example, the collecting section 30 may include at least one of polyvinyl chloride, polyolefin, polycarbonate, polysulfone, acrylic resin, acrylonitrile butadiene styrene (ABS) resin, and modified PPE (polyphenylene ether) resin.

Collecting pipe

The water collecting pipe (40) serves to transfer the collected water collected in the collecting part (10). Specifically, the water collecting pipe 40 may be disposed in parallel to the air supplying pipe 10 in a spaced apart manner.

The diameter of the water collecting pipe 40 may be 30 mm to 200 mm, specifically 70 mm to 130 mm. It is possible to achieve the integration of the water treatment apparatus without lowering the collection efficiency in the above range.

Meanwhile, the water collecting pipe may include a support member fixing part that performs a function of mounting the support member without fluid communication. The support member fixing portion will be described later.

Hollow fiber membrane

The hollow fiber membrane 60 serves to filter the raw water, and the filtered treated water can be collected in the collecting part 30. [ A plurality of hollow fiber membranes 60 may be formed in a bundle shape, and a number suitable for purposes and specifications of the water treatment apparatus can be applied.

The hollow fiber membrane 60 of the present invention is inverted U-shaped and has both ends potted to the collecting part 30. [ Since the inverted U-shaped hollow fiber membrane has fluidity, accumulation of sludge in the hollow fiber membrane 60 can be effectively prevented, and the volume of the water treatment apparatus 100 can be reduced, thereby integrating the water treatment apparatus. Further, the water collecting efficiency is superior to that of the water treatment apparatus having only one end of the hollow fiber membrane, and the hollow fiber membrane is potted at the same collecting part at both ends, so that the water treatment apparatus can be integrated.

The material of the hollow fiber membrane 60 is not limited insofar as it has a property of filtering the water to be treated (raw water). As an example, the hollow fiber membrane 60 may be formed of a material selected from the group consisting of polyolefin, polysulfone, polyethersulfone, polyimide, polyetherimide, cellulose, cellulose acetate, polyvinyl alcohol, polyamide, polyethylene, polyfluoride ethylene, polyvinylidene fluoride Acrylonitrile, polypropylene, polymethyl methacrylate, polytetrafluoroethylene, or polyether ketone. Specifically, it may include at least one of polyvinylidene fluoride (PVDF), polypropylene (PP), and polytetrafluoroethylene (PTFE).

The length of the hollow fiber membrane exposed through the pore portion may be adapted to satisfy an inequality (I) of the following formula (1) between the interval (I) between the pore 30 and the support member 50.

[Formula 1]

(2 x I) + 50? Length of hollow fiber membrane (mm)? (2 x I) + 150

(Where, I is the interval (unit: mm) between the collecting part and the supporting member)

In the above-mentioned range, the fluidity of the hollow fiber membrane 60 is appropriate, so that it is possible to prevent both damage due to entanglement and damage due to friction with the support member, and the hollow fiber membrane is long so that the water treatment efficiency is high. There is an advantage that integration can be done.

Supporting member

The support member 50 is inserted into a top portion of the inverted U-shaped hollow fiber membrane and has a plurality of fluid holes 55 to control fluidity of the hollow fiber membrane 60. One end of the support member 50 may be fixed to the air supply pipe 10 and the other end may be fixed to the water collection pipe 40.

Specifically, the hollow fiber membrane 60 according to the present invention has a structure in which both ends of the hollow fiber membrane 60 are coupled to one of the collecting parts 30 and only one of them is fixed (inverted U) . However, in this case, there is a problem that the hollow fiber membrane 60 is excessively high and the hollow fiber membrane is easily damaged due to friction between the hollow fiber membranes or the like. However, the support member 50 of the present invention has a problem in that the hollow fiber membrane 60 The fluidity can be adjusted to a certain level to prevent the entanglement of the hollow fiber membrane and the damage due to the friction between the hollow fiber membranes.

In addition, the support member 50 of the present invention includes a plurality of fluid holes 55 at the top to minimize friction with the hollow fiber membrane. The fluid holes 55 can pass air, or air and liquid, depending on the shape of the support member 50. The hollow fiber membrane 60 can be kept at a certain distance from the support member 50 by the air or liquid passing through the fluid hole 55 and thereby the hollow fiber membrane 60 can be supported by the support member 50 The friction is minimized, and the life time due to damage can be prevented.

The fluid hole 55 may have a diameter of 1 mm to 20 mm, specifically 2 mm to 10 mm. In the above range, friction between the hollow fiber membrane and the support member can be minimized, and the effect of removing the sludge on the support member and the hollow fiber membrane upper is also excellent.

The intervals and the number of the fluid holes 55 can be appropriately adjusted according to the specifications of the structures of the present invention and the like. For example, they may be arranged at regular intervals, the spacing may increase toward the center, the spacing may decrease toward the center, or may be arranged in one or more rows.

Hereinafter, the support member of the present invention will be described with reference to Figs. 3 and 4. Fig. Figure 3 schematically shows a support member according to one embodiment of the invention, Figure 4 schematically shows a support member according to another embodiment of the invention.

Referring to FIG. 3, the support member 51 according to one embodiment of the present invention may be in the form of a tube. For example, the cross section of the support member 51 may be circular, but is not limited thereto. In this case, one end of the support member 51 is in fluid communication with the air supply pipe 10 through the support member engaging portion, so that air from the air supply pipe 10 can be generated through the fluid hole 55. The other end of the support member 51 can be fixed to the water collecting pipe 40 by the support member fixing portion. Specifically, air is supplied from the air supply pipe 10 to the support member 51 when the support member 51 is in the form of a tube, which is generated through the fluid hole 55. [ The air generated from the fluid hole 55 can maintain the hollow fiber membrane 60 and the support member 51 at a predetermined distance and prevent the hollow fiber membrane 60 from being damaged by the friction with the support member 51 The life of the hollow fiber membrane 60 can be extended.

Referring to FIG. 4, the supporting member 52 according to another embodiment of the present invention may be opened at the bottom. For example, the cross section of the support member 52 may be arcuate, but is not limited thereto. In this case, the support member 52 is fixed to the air supply pipe 10 and the water collection pipe 40 by the support member fixing portions, respectively. Specifically, when the lower portion of the support member 52 is opened, the air and the flow of the liquid due to the acid generated in the acid portion 20 pass through the fluid hole 55 of the support member 52, The friction between the support member 52 and the hollow fiber membrane 60 can be minimized and the life of the hollow fiber membrane 60 can be prolonged.

In an embodiment, the support member 50 may include one or more of an open flange and a blind flange. In one embodiment, when the support member is in the form of a tube, one end of the support member 51 may have an open flange for forming the support member engagement portion, and the other end may be provided with a blind flange for forming the support member fixing portion in advance have. In other embodiments, both ends of the support member 52 may be provided with a blind flange for forming the support member fixing portion when the lower portion of the support member is opened.

The support member may have a width D _s of 5 mm to 50 mm, specifically 10 mm to 30 mm. The gap between the support member and the hollow fiber membrane can be kept constant within the above range and the friction with the hollow fiber membrane can be minimized.

The distance between the support member and the collecting part may be 5 cm to 200 cm, specifically, 10 cm to 150 cm. Within the above-mentioned range, the water treatment apparatus can be integrated, and the water collecting efficiency is increased.

The support member-

Hereinafter, the support member engagement portion and the support member engagement region of the present invention will be described with reference to FIGS. 5 and 8. FIG. Here, the support member engagement region means a position where the open flange is engaged to form the support member engagement portion. FIG. 5 is a schematic view of a support member coupling portion according to one embodiment of the present invention, and FIG. 8 is a schematic view of an air supply pipe having a plurality of support member coupling regions according to an embodiment of the present invention.

5, the support member engaging portion 80 may be formed on the air supply pipe 10 to allow the air supply pipe 10 and the support member 50 to communicate with each other. The support member engaging portion 80 may include an open flange 81. For example, the open flange 81 may be formed in advance in the support member 50, but is not limited thereto.

Specifically, the support member engaging portion 80 includes an open flange 81, and the air supply pipe 10 and the support member 50 can be coupled via the open flange 81. [ The center of the open flange 81 and the communication portion 87 of the air supply pipe 10 are opened so that the air supply pipe 10 is in fluid communication with the support member 50. [ The open flange 81 can engage with the bolt portion 85 formed on the air supply pipe 10 through the bolt fastening portion 83. A nut 89 may be used for coupling with the bolt portion 85. The open flange 81 may be formed in a curved surface or may be formed flat on the support member engagement area on the air supply pipe 10 for close contact between the open flange 81 and the air supply pipe 10. [

The bolt portion 85 is formed on the air supply pipe 10 and serves to fix the support member 50 by means of the nut 89 via the open flange 81. The method of forming the bolt portion 85 is not limited as long as the bolt portion 85 can be formed on the air supply pipe 10. For example, the bolt portion 85 may be integrally formed with the air supply pipe 10, or may be formed by welding. Or a bolt passing through the air supply pipe 10 may be formed. In this case, a portion penetrating the air supply pipe 10 can be sealed using an O-ring or the like so that the fluid does not leak.

When the end surface of the support member 50 is tubular, the support member can be connected to the air supply pipe 10 by the support member engagement portion 80, Can be diffused through the fluid holes (55) of the heat exchanger (50).

Referring to FIG. 8, a plurality of support member engagement regions may be formed on the air supply pipe 10. The support member coupling region includes a bolt portion (85) and a communicating portion (87) formed on the air supply pipe (10). In this case, the gap between the holding part and the supporting member can be optimally adjusted by connecting the supporting member to the appropriate coupling area, and thus the fluidity of the hollow fiber membrane to be shrunk over time can be controlled to be maintained . Specifically, the support member engagement region where the support member is not engaged can seal the communication portion 87 that does not communicate with the support member by engaging the blind flange 91. When coupling the support member to another support member engagement region, the combined blind flange can be removed and fluidly communicated by engagement with the support member via the open flange 81, and the existing support member engagement region can be blind flanged The position of the support member can be changed by a sealing method. A nut 89 may be used for coupling with the bolt portion 85.

In the case where one or more support member engagement areas are formed on the air supply pipe 10, the support member fixing areas may be formed on the water collection pipe 40 at the same height as the respective support member engagement areas. The supporting member is horizontally fixed by the supporting member engaging region and the supporting member fixing region formed at the same height to control the fluidity of the hollow fiber membrane and to prevent friction.

The support member fixing portion

Hereinafter, the support member fixing portion and the support member fixing region of the present invention will be described with reference to FIGS. 6 and 9. FIG. Here, the support member fixing region means a position where the blind flange is engaged to form the support member fixing portion. FIG. 6 is a schematic view of a support member fixing part according to one embodiment of the present invention, and FIG. 9 is a schematic view of a water collecting pipe having a plurality of support member fixing areas according to an embodiment of the present invention. 6 and 9 illustrate the support member fixing parts formed in the air supply pipe, they can be applied in substantially the same manner even when the support member fixing parts are formed in the water collection pipe.

6, the support member fixing portion 90 may be formed on the air supply pipe 10 or the water collecting pipe 40 to fix the support member 50. [ The supporting member fixing portion is not in communication with the air supply pipe (10) or the water collecting pipe (40). The support member fixing portion 90 may include a blind flange 91. For example, the blind flange 91 may be previously formed on the support member 50, but is not limited thereto.

Specifically, the support member fixing portion 90 includes a blind flange 91, and the water collection pipe 40 or the air supply pipe 10 can be coupled with the support member via the blind flange 91. [ The support member fixing portion 90 does not include the communication portion on the water collection pipe 40 or the air supply pipe 10. [ The blind flange 91 can be coupled with the bolt portion 95 formed on the water collection pipe 40 or the air supply pipe 10 through the bolt fastening portion 93. A nut 99 may be used for coupling with the bolt portion 95. The blind flange may be formed as a curved surface or may be formed so as to flatten the support member fixing region on the water collection pipe 40 or the air supply pipe 10 in order to close the blind flange 91 and the water collection pipe 40 or the air supply pipe 10 .

The bolt portion 95 is formed on the water collection pipe 40 or the air supply pipe 10 and serves to fix the support member 50 by the nut 99 via the blind flange 91. [ The method of forming the bolt portion 95 is not limited as long as the bolt portion 95 can be formed on the water collecting pipe 40 or the air supply pipe 10. This is substantially the same as the bolt portion 85 of the above-described support member coupling portion.

The supporting member fixing portion 90 is formed on the water collecting pipe 40 so that the supporting member fixing portion 90 is supported by the support member engaging portion 80 formed on the air supply pipe 10, The member can be fixed horizontally.

The supporting member fixing portion 90 is formed on the air supply pipe 10 and the water collecting pipe 40 so that the supporting member is horizontally fixed .

Referring to Fig. 9, the support member fixing region may be formed on the air supply pipe 10 or the water collection pipe 40 in plural numbers. The support member fixing region includes a bolt portion 95 formed on the water collection pipe 40 or the air supply pipe 10. In this case, there is an advantage that the gap between the collecting portion and the supporting member can be optimally adjusted by connecting the supporting member to a proper fixing region, and thus the fluidity of the hollow fiber membrane to be shrunk over time can be controlled to be maintained . When the support member is changed to another support member fixing portion, the blind flange 91 can be changed in position via the bolt fastening portion 93 in such a manner as to be engaged with the bolt portion 95 formed in the support member fixing region have. A nut 99 may be used for coupling with the bolt portion 95.

In the case where one or more support member fixing regions are formed on the air supply pipe 10 or the water collecting pipe 40, the respective support member fixing regions may be formed at the same height. The support member may be horizontally fixed by the support member fixing region formed at the same height to control the fluidity of the hollow fiber membrane and to prevent friction.

The plurality of support member engagement areas or the plurality of support member fixation areas may be formed at an interval of 5 mm to 50 mm, specifically, 5 mm to 10 mm. At this time, the distance may mean the distance between the nearest bolts 85 and 95. It is possible to flexibly cope with the contraction of the hollow fiber membrane within the above range.

Acid engine

Hereinafter, the diffuser of the present invention will be described with reference to FIG. 7 schematically shows a water treatment apparatus according to another embodiment of the present invention.

In another embodiment, the water treatment apparatus 200 of the present invention may further include an acid pipe 70 between the support member 50 and the water collecting part 30. [ The air diffuser 70 has a plurality of fluid holes and one end of the air supply pipe 10 and the air diffuser 70 are in fluid communication so that air from the air supply pipe 10 is diffused through the fluid holes . The other end of the diffusion pipe 70 may be fixed to the water collecting pipe 40, but is not limited thereto.

The air diffusing pipe 70 is located above the water collecting part 30 and may be disposed apart from the water collecting part or may be formed directly on the water collecting part. Further, the diffuser 70 may be disposed between the positions where the inverted U-shaped hollow fiber membrane is potted in the collecting part.

The water treatment apparatus 200 further includes the diffuser 70 to prevent the hollow fiber membrane 60 and the support member 50 from removing and accumulating the sludge. Particularly, the diffuser 70 can form a fluid flow not only in the acid phase but also in the hollow fiber membrane 60, thereby further increasing the cleaning efficiency and further reducing the friction between the support member 50 and the hollow fiber membrane 60 .

The diffuser 70 may be between 1 mm and 50 mm in diameter, specifically between 2 mm and 25 mm, and may achieve a combination of cleaning efficiency and integration within the range.

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 understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are intended to be illustrative in all respects and not restrictive.

10: air supply pipe 20:
25: Mountain hall 30: Collecting house
40: water collecting pipe 50, 51, 52: supporting member
55: fluid hole 60: hollow fiber membrane
70: diffuser 80: support member coupling portion
81: opening flange 83: bolt fastening portion
85: bolt part 87:
90: Support member fixing part 91: Blind flange
93: bolt fastening part 95: bolt part
100, 200: Water treatment device

Claims (15)

An air supply pipe for supplying air;
An acid heater for generating air supplied from the air supply pipe;
A collecting part located on the acid base and collecting treated water;
A collecting pipe for conveying the treated water collected in the collecting part;
A plurality of hollow fiber membranes of inverted U shape, both ends of which are potted in the collecting part; And
A support member inserted into a top portion of the inverted U-shaped hollow fiber membrane and having a plurality of fluid holes, one end fixed to the air supply pipe and the other end fixed to the water collection pipe;
.
The method according to claim 1,
Wherein the air supply pipe and the support member are in fluid communication with each other so that air from the air supply pipe is diffused through the fluid holes.
The method according to claim 1,
Wherein the air supply tube includes a support member engagement portion in fluid communication with the support member,
Wherein the water collecting pipe includes a support member fixing portion for fixing the support member,
Wherein the support member is in the form of a tube.
The method of claim 3,
Wherein the support member is circular in cross section.
The method according to claim 1,
The air supply pipe and the water collecting pipe each include a support member fixing portion for fixing the support member,
Wherein the support member is opened at a lower portion thereof.
6. The method of claim 5,
Wherein the support member is arcuate in cross section.
The method according to claim 1,
Wherein the length of the hollow fiber membrane is in the range of the following formula 1:
[Formula 1]
(2 x I) + 50? Length of hollow fiber membrane (mm)? (2 x I) + 150
(In the above formula 1, I is the interval (unit: mm) between the collecting part and the supporting member).
The method according to claim 1,
Wherein the fluid hole has a diameter of 1 mm to 20 mm.
The method according to claim 1,
Further comprising an acid pipe between the support member and the collecting part.
10. The method of claim 9,
Wherein the diffuser has a plurality of fluid holes,
Wherein the air supply pipe and the air diffuser are in fluid communication with each other so that air from the air supply pipe is diffused through the fluid holes.
The method of claim 3,
Wherein the air supply pipe has a plurality of support member engaging regions that can be engaged with and in fluid communication with the support member,
Wherein the water collecting pipe includes a plurality of support member fixing areas formed at the same height as the respective support member engagement areas to fix the support member.
6. The method of claim 5,
Wherein the air supply pipe and the water collecting pipe are formed at the same height and include a plurality of support member fixing areas for fixing the support member.
13. The method according to claim 11 or 12,
Wherein the plurality of support member engagement regions or the plurality of support member fixation regions are formed at intervals of 2 mm to 50 mm.
The method of claim 3,
Wherein the support member coupling portion includes an open flange.
The method according to claim 3 or 5,
Wherein the support member fixing portion comprises a blind flange.

Images