KR101732684B1

KR101732684B1 - Method of producing an ion-exchange fiber Plaited thread Micro chip filter

Info

Publication number: KR101732684B1
Application number: KR1020150144917A
Authority: KR
Inventors: 박성용; 김성배; 박형우; 최낙철; 온현성
Original assignee: 서울대학교산학협력단; 주식회사 이시엘
Priority date: 2015-10-16
Filing date: 2015-10-16
Publication date: 2017-06-05
Also published as: KR20170045454A

Abstract

Disclosed is a method for manufacturing an air filter material in which ion exchange fibers are laminated. A method of manufacturing a filter material with ion-exchange fibers according to an embodiment of the present invention includes: mixing ion-exchange fibers and a first combustible fiber yarn; Folding the mixed fiber yarn and the second combustible yarn; Preparing nuclei using the fiber yarn; And thermally fusing the prepared nuclei.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for producing an ion-

More particularly, the present invention relates to a method of manufacturing a filter medium in which ion exchange fibers are spun, more particularly, to a method of fabricating a filter medium by mixing ion exchange fibers with a microchip filter to remove turbidity of water contaminated with contaminants, The present invention relates to a method for manufacturing a filter medium in which an ion exchange fiber for removing an ionic impurity is added.

Compressed filter medium deep filtration is widely used for the treatment of contaminated water. Compressed filter media The deep filtration method is a process in which a micro chip filter is put into a filter and then a pressure is applied to a micro chip filter by a piston of the filter. When the piston reaches a pressure lower limit, A pressure release process for stopping the filtration and moving the piston to the upper portion of the filter when the inlet pressure of the inflow water reaches a predetermined pressure, and when the piston reaches the pressure upper limit point, Suspended solid attached to the micro chip filter is desorbed by stirring and vibration and backwash water is discharged to the filter outlet to remove suspended solids dissolved in the water .

However, the micro chip filter used in the existing filter media deep filtration method can remove the turbidity of the contaminated water by removing the suspended solid which is dissolved in the water, but it can remove the dissolved ions dissolved in the contaminated water It has a problem that can not be done.

In order to solve the problems of the prior art described above, a solution to the problem of the prior art is to add ion exchange fibers having high ion exchange capacity, impurity adsorption ability, high strength, elasticity and stretchability to a microchip filter, And removing the dissolved ions dissolved in the contaminated water with the removal of the dissolved ions.

The solution of the present invention is not limited to the above-mentioned solutions, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

A method of manufacturing a filter material with ion-exchange fibers according to the present invention comprises the steps of: mixing an ion-exchange fiber and a first flammable fiber yarn; Folding the mixed fiber yarn and the second combustible yarn; Preparing nuclei using the fiber yarn; Wherein the mixing step comprises mixing the ion-exchange fiber and the first combustible fiber yarn in a ratio of 6: 4 and the mixed fiber yarn is in a number of 5, Wherein the ratio of the number of strands of the mixed fiber yarn to the number of strands of the second combustible fiber yarn is 1: 6, and the step of producing the nucleus comprises: stranding the stranded fiber yarn into three strand yarns using three strands of a third, And thermally fusing the nuclei is performed at a temperature of 130 ° C, a pressure of 3 kg / hr, and a time of 20 minutes.

According to the manufacturing method of the filter material in which the ion exchange fibers are in accordance with the embodiment of the present invention, the turbidity of the contaminated water is removed and the dissolved ions dissolved in the contaminated water are removed. Also, the treatment process of contaminated water is simple, and the treatment cost of water pollution is also reduced. In addition, it is possible to reuse the filter material of the present invention after backwashing by mixing dissolved ion desorbing water in reverse osmosis water, and it is possible to increase the treatment efficiency of the polluted water by changing the magnification of the filter material according to the characteristics of the discharge water.

1 is a view showing the island-like structure obtained by mixing the ion-exchange fiber and the first combustible fiber yarn according to the embodiment of the present invention.
FIG. 2 is a view showing a nucleus and a cut nucleus formed by folding a mixed fiber yarn and a second combustible yarn according to an embodiment of the present invention. FIG.
FIG. 3 is a view showing the filter material of the present invention, which is completed by thermally fusing nuclei manufactured according to an embodiment of the present invention.

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

Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an," and "the" include plural forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, regions and / or regions, it should be understood that these elements, components, regions, layers and / Do. These terms do not imply any particular order, top, bottom, or top row, and are used only to distinguish one member, region, or region from another member, region, or region. Thus, the first member, region or region described below may refer to a second member, region or region without departing from the teachings of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to any particular shape of the regions illustrated herein, including, for example, variations in shape resulting from manufacturing.

1 is a view showing a fiber yarn obtained by mixing an ion-exchange fiber and a first flammable fiber yarn according to an embodiment of the present invention.

The ion exchange fiber is formed by forming an ion exchange resin, which is a particle having a functional group that exchanges ions of the same sign existing in an aqueous solution, in a solid or liquid, into a fiber.

Ion exchange fiber has high ion exchange ability, impurity adsorption ability, high strength and elasticity, good stretchability and can be reused, so it can be used as a flame retardant fiber (polypropylene having high rigidity and high heat resistance, water resistance and abrasion resistance) Ion exchange fiber can be used in the fabricated micro chip filter to remove the turbidity of the contaminated water and to remove the dissolved ions dissolved in the contaminated water to increase the treatment efficiency of the polluted water.

Hereinafter, the mixing process of the ion exchange fiber and the first combustible fiber yarn will be described in detail with reference to FIG. The ion exchange fiber and the first flammable fiber yarn are mixed at a ratio of 6: 4, and rolled up like toilet paper rolls. The mixed wound fiber yarn is 5 number.

The reason that the ion exchange fiber and the first combustible fiber yarn are mixed at a ratio of 6: 4 is to prevent the manufacturing cost from being increased without losing the advantage of the ion exchange fiber and the advantage of the combustible fiber yarn.

FIG. 2 is a view showing a nucleus and a cut nucleus formed by folding a mixed fiber yarn and a second combustible yarn according to an embodiment of the present invention. FIG.

Referring to FIG. 2, the ratio of the number of strands of the mixed fiber yarn and the second combustible fiber yarn is 1: 6. In the present invention, twenty-two strands of mixed fiber yarns and two strands of second twisted fiber yarn are stranded. When the filter material of the present invention was produced with 22 strands of mixed fiber yarn and 130 strands of second twisted fiber yarn (Sample 4 of Table 1 described later), the amount of removed fiber per strand of mixed fibers of TN (total nitrogen) and TP (total phosphorus) [mg / L] was the best.

The experimental data are shown in Table 1 and Table 2.

T-N (total nitrogen) removal amount (initial concentration of T-N is 67 mg / L)

Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
Removal rate [%]

82.90
82.10
84.46
74.04
82.03
Removal amount [mg / L]

55.70
55.17
56.75
49.75
55.12
The number of the second combustible fiber strands
92
92
60
130
100
Mixed fiber yarns
44
44
60
22
60

Knotted

One
3
3
3
2
Removal amount per mixed fiber yarn [mg / L]

1.27

1.25

0.95

2.26

0.92

Removal amount of T-P (total phosphorus) (initial concentration of T-P is 155 mg / L)

Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
Removal rate [%]

60.48
52.79
54.27
49.20
52.66
Removal amount [mg / L]

92.81
81.01
83.29
75.50
80.80
The number of the second combustible fiber strands
92
92
60
130
100
Mixed fiber yarns
44
44
60
22
60
Knotted

One
3
3
3
2
Removal amount per mixed fiber yarn [mg / L]

2.11

1.84

1.39

3.43

1.35

As shown in Tables 1 and 2, Sample 1 has a knot number of 1, a mixed fiber yarn number of 44, and a second number of twisted yarn strands of 92, each having a ratio of 1: 2, a sample 2 having a knot number of 3, The number of yarns 44 and the number of the second twisted yarn yarns 92 was 1: 2, the number of knot 3, the number of mixed yarns 60, and the number of second twisted yarn yarns 60 were 1 : 1, the sample 4 had a knot number of 3, a mixed fiber yarn number of 22 and a second number of twisted yarn strands of 130, each having a ratio of 1: 6, a sample 5 having a knot number of 2, , And the number of second stranded fibers is 100, and the ratio is 1: 1.6, respectively.

As can be seen from Tables 1 and 2, when the number of the strands of the second twisted yarn 130 and the number of the twisted yarns 22 of the mixed yarn and the second twisted yarn in the sample 4 were 1: 6, (Mg / L) of the total fiber (total nitrogen) and TP (total phosphorus) were 2.26 [mg / L] and 3.43 [mg / L], respectively.

Then, in order to improve the durability of the core by using the folded fiber yarn, the folded fiber yarn is bundled into three strands by using three strands of a third flexible yarn, Cut to 3cm because size is reduced.

FIG. 3 is a view showing the filter material of the present invention, which is completed by thermally fusing nuclei manufactured according to an embodiment of the present invention.

Referring to FIG. 3, in the step of thermally fusing the nuclei, heat fusion can be performed at a temperature of 125 ° C. to 135 ° C., a pressure of 2.5 to 3.5 kg / hr, and a time of 15 to 20 minutes.

In the present invention, the ion-exchange fiber-bonded filter material was thermally fused at a temperature of 130 캜, a pressure of 3 kg / hr, and a time of 20 minutes so that the knot of the filter material was not loosened and the durability was maximized. The total diameter of the finally obtained finished ion-exchange fiber-loaded filter media is 2 cm and the density is 0.112 g / cm 3.

The filter material formed by the ion exchange fiber fabricated according to the present invention may be used in any filtration device including various types of compression methods and filtration methods including the compressed filter material deep filtration device exemplified in this specification, It is possible to reduce the cost of water pollution treatment. Further, it is possible to reuse the filter material of the present invention after backwashing by mixing dissolved ion desorbing water in the reverse osmosis water, and it is possible to change the magnification of the filter material of the present invention depending on the characteristics of the discharged water, have.

The present invention has been described above with reference to the embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. Therefore, the scope of the present invention is not limited to the above-described embodiments, but should be construed to include various embodiments within the scope of the claims and equivalents thereof.

Claims

Mixing the ion exchange fiber and the first flammable fiber yarn;
Folding the mixed fiber yarn and the second combustible yarn;
Preparing nuclei using the fiber yarn;
And thermally fusing the prepared nuclei,
Wherein the mixing comprises:
Wherein the ratio of the ion-exchange fiber to the first combustible fiber yarn is 6: 4 and the mixed fiber yarn is 5,
Wherein the step of folding comprises:
Wherein the ratio of the number of strands of the mixed fiber yarn to the number of strands of the second combustible fiber yarn is 1: 6.

delete

The method according to claim 1,
The step of producing the nuclei comprises:
Wherein the folded fiber yarn is bundled with three strands of a third strand of knitted fiber yarn and cut to a length of 3 cm.

The method according to claim 1,
The step of heat-
At a temperature of 130 DEG C, at a pressure of 3 kg / hr, for a time of 20 minutes.