KR102620745B1 - Water treatment device using ion-exchange fiber braided micro chip filter - Google Patents

Abstract

The present invention discloses a water treatment device. The present invention is a water treatment device capable of simultaneously removing dissolved contaminants and suspended contaminants in wastewater, comprising: a reaction tank containing the wastewater; an inlet formed at the bottom of the reaction tank through which the wastewater flows; At least one ceramic separator fixedly disposed inside the reaction tank; A filter medium containing ion exchange fibers suspended inside the reaction tank; and a treated water discharge port through which filtered wastewater is discharged after passing through a filter medium in which the ceramic separator and the ion exchange fiber are braided. It is characterized by including.
This research was supported by the Ministry of Environment's Environmental Facilities Disaster Response Technology Development Project (2020002870001).

Description

Water treatment device using filter media braided with ion exchange fibers {WATER TREATMENT DEVICE USING ION-EXCHANGE FIBER BRAIDED MICRO CHIP FILTER}

The present invention relates to a water treatment device using a filter medium braided with ion exchange fibers. More specifically, the present invention relates to a water treatment device using a filter media braided with ion exchange fibers and a ceramic separator in a reaction tank to remove dissolved contaminants and floating contaminants in wastewater. It relates to a water treatment device that can simultaneously remove.

Domestic sewage discharged from homes or wastewater discharged from factories contains various suspended pollutants and sewage. A water treatment device is a device that filters out and purifies various suspended contaminants and sewage from sewage wastewater.

Generally, a water treatment device for sewage treatment includes a filter through which sewage flows, a plurality of disk-type filters installed within the filter for filtration of sewage, and an upper side of the filter so that the filter can be cleaned by spraying high-pressure washing water on the outside of the filter. Equipped with cleaning equipment installed in. Additionally, a trough may be provided to catch dirt flowing down from the inside of the filter during cleaning and discharge it to the outside.

In this water treatment device, sewage supplied to a central filter is filtered as it passes through the filter. Filtered floating contaminants or dirt accumulate inside the filter, and water purified as it passes through the filter is discharged to the outside through the discharge port.

However, in these water treatment devices, sewage flows into the inside of the filter through the filter and is discharged to the outside, so floating contaminants or sewage adhere or accumulate on the inside of the filter. Therefore, despite cleaning the filter, the longer it is used, the more floating particles within the filter increase, which reduces the amount of sewage purification treated.

In addition, this water treatment device has the disadvantage of low cleaning efficiency and the need for a lot of cleaning water because it cleans the dirt attached to the inside of the filter by spraying washing water from the outside of the filter. In addition, it is difficult to partially replace the filter, making maintenance difficult, and there is a problem that all operations must be stopped when replacing the filter.

In particular, conventional sewage treatment filter devices are somewhat easy to remove floating substances, but are vulnerable to removal of dissolved ionic substances (for example, arsenic, which is a heavy metal). In other words, the filter media (micro chip filter) used in conventional water treatment devices can remove suspended solids dissolved in water and remove turbidity from contaminated water, but cannot remove dissolved ions dissolved in contaminated water. There are problems that cannot be resolved.

This research was supported by the Ministry of Environment's Environmental Facilities Disaster Response Technology Development Project (2020002870001).

Republic of Korea Patent No. 1877142, “Method of filtering sewage using ion exchange fiber”

An embodiment of the present invention removes dissolved contaminants and suspended contaminants in wastewater by adding a filter medium containing ion exchange fibers as a fluidized media in a reaction tank containing a ceramic membrane, while preventing fouling of the ceramic membrane. The object is to provide a water treatment device that can be cleaned.

A water treatment device according to an embodiment of the present invention is a water treatment device capable of simultaneously removing dissolved contaminants and suspended contaminants in wastewater, comprising: a reaction tank containing the wastewater; an inlet formed at the bottom of the reaction tank through which the wastewater flows; At least one ceramic separator fixedly disposed inside the reaction tank; A filter medium containing ion exchange fibers suspended inside the reaction tank; and a treated water discharge port through which filtered wastewater is discharged after passing through a filter medium in which the ceramic separator and the ion exchange fiber are braided. Includes.

The filter medium in which the ion exchange fibers are braided can control fouling occurring in the ceramic separator.

The filter medium in which the ion exchange fibers are braided is an ion exchange fiber formed in a fibrous form by forming a film of a polymer matrix and an ion exchange resin, which is a particle having a functional group that is bonded to the polymer matrix and has a functional group that exchanges ions. It may have a structure in which a filter medium containing false twisted fiber yarns is braided.

The media in which the ion exchange fibers are braided is made by braiding the ion exchange resin with the first false twisted fiber yarn and the second false twisted fiber yarn, and the ion exchange resin and the first false twisted fiber yarn are mixed at a density ratio of 6:4 to form 5 It constitutes a number of mixed fiber yarns, and the mixed fiber yarn may be plyed with the second false twist fiber yarn at a strand number ratio of 1:6.

The polymer matrix may include at least one of polyacrylonitrile (PAN) fibers, cellulose-based fibers, polyvinyl alcohol (PVA) fibers, and polyethylene (PE) fibers.

The functional group may include at least one of a sulfonic acid group (SO ₃ ^- ), a carboxylic acid group (COO ^- ), an amine group (NH ₃ ⁺ ), and a quaternary ammonium group (N ⁺ (CH ₃ ) ₃ ⁺ ).

The false twisted fiber yarn may include polypropylene.

The ceramic separator may include a substrate and a ceramic layer coated on at least one surface of the substrate.

According to an embodiment of the present invention, dissolved contaminants and suspended contaminants in wastewater are removed by adding a filter medium containing ion exchange fibers as a fluidized media in a reaction tank containing a ceramic membrane, and at the same time, fouling of the ceramic membrane is removed. A water treatment device capable of cleaning the ring can be provided.

1 is a cross-sectional view showing a water treatment device according to an embodiment of the present invention.
Figure 2 is a schematic diagram showing a fouling cleaning process of a water treatment device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components or steps.

As used herein, “embodiment,” “example,” “aspect,” “example,” etc. should be construed to mean that any aspect or design described is better or advantageous than other aspects or designs. It's not like that.

Additionally, the term 'or' means an inclusive OR 'inclusive or' rather than an exclusive OR 'exclusive or'. That is, unless otherwise stated or clear from the context, the expression 'x uses a or b' means any of the natural inclusive permutations.

Additionally, as used in this specification and claims, the singular expressions “a” or “an” generally mean “one or more,” unless otherwise indicated or it is clear from the context that the singular refers to singular forms. It should be interpreted as

The terms used in the description below have been selected as general and universal in the related technical field, but there may be different terms depending on technological developments and/or changes, customs, technicians' preferences, etc. Accordingly, the terms used in the description below should not be understood as limiting the technical idea, but should be understood as illustrative terms for describing embodiments.

In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the detailed meaning will be described in the relevant description. Therefore, the terms used in the description below should be understood based on the meaning of the term and the overall content of the specification, not just the name of the term.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

Meanwhile, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terminology used in this specification is a term used to appropriately express the embodiments of the present invention, and may vary depending on the intention of the user or operator or the customs of the field to which the present invention belongs. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a cross-sectional view showing a water treatment device according to an embodiment of the present invention.

The water treatment device according to an embodiment of the present invention is a water treatment device capable of simultaneously removing dissolved contaminants and floating contaminants in sewage water, and is formed in a reaction tank 110 containing sewage water, a lower part of the reaction tank 110, and wastewater water. Inlet 120, at least one ceramic membrane (Ceramic Membrane; 130) fixed and disposed inside the reaction tank 110, a filter medium 140 in which ion exchange fibers suspended inside the reaction tank 110 are braided, and a ceramic membrane. (130) and a treated water discharge port (150) through which the filtered wastewater passes through a filter medium (140) in which ion exchange fibers are braided and is discharged.

Therefore, the water treatment device according to an embodiment of the present invention adds a filter medium 140 in which ion exchange fibers are braided into a reaction tank 110 including a ceramic separation membrane 130 as a fluidized media to remove dissolved contaminants in wastewater. At the same time as removing floating contaminants, fouling of the ceramic separator 130 can be cleaned.

In addition, the water treatment device according to an embodiment of the present invention includes a ceramic separation membrane 130 that removes floating contaminants in wastewater and a filter medium 140 in which ion exchange fibers are braided to remove dissolved contaminants, thereby reducing the concentration of dissolved contaminants in wastewater. Contaminants and floating contaminants can be removed at the same time.

First, the water treatment device according to an embodiment of the present invention includes a reaction tank 110 containing wastewater, and a lower part of the reaction tank 110 includes an inlet 120 through which sewage water flows.

Sewage water or wastewater may be supplied into the reaction tank 110 through the inlet 120 formed at the bottom of the reaction tank 110 using a raw water supply pump.

A water treatment device according to an embodiment of the present invention includes at least one ceramic separation membrane 130 fixed and disposed inside the reaction tank 110.

Conventionally, polymer composite organic membranes (PES, PVDF, etc.) have been widely used in the reaction tank 110, but organic membrane separation membranes have the disadvantage of being vulnerable to conditions such as strong acids, strong bases, and high temperatures.

On the other hand, the ceramic separator 130 has high physical durability under extreme conditions such as pH, pressure, and temperature compared to the organic membrane separator, and is relatively resistant to high concentration chemical cleaning, so the water treatment device according to the embodiment of the present invention is a reaction tank. By including a ceramic separator 130 with strong chemical resistance and durability within (110), it can be used even in extreme conditions such as strong acids, strong bases, and high temperatures with poor water quality.

In addition, the ceramic separator 130 is hydrophilic and can be backwashed, enabling stable operation with high flux. Additionally, since the membrane surface has a high negative charge, it can be used to remove negatively charged bacteria, algae, and MLSS in water. It has the advantage of being easy to remove contaminants such as microbially produced polymers (TEP) and oil.

Additionally, the ceramic separator 130 may have a relatively uniform pore structure, high hydrophilicity, ease of surface modification, chemical resistance, and heat resistance compared to the organic membrane separator.

The water treatment device according to an embodiment of the present invention can remove suspended contaminants by including a ceramic separation membrane 130. On the other hand, floating contaminants are not removed by the filter medium 140 made of ion exchange fibers.

More specifically, suspended contaminants present in wastewater are removed by the ceramic separator 130, and the ceramic separator 130 acts as a physical barrier and can remove only suspended contaminants larger than the pore size.

At this time, the operation method of the ceramic separator 130 is pressure-driven, in which pressure is applied between the ceramic separators 130 and the pressure difference between the inside and outside of the ceramic separator 130 is used as the driving force. Among solutions (including wastewater) mixed with oil-based contaminants, suspended contaminants larger than the pore size of the ceramic separator 130 cannot pass through the separator, and the purified solution (treated water) is transported through the ceramic separator 130 and remains floating. Contaminants and purified solution (treated water) can be separated.

In addition, the throughput of the water treatment process using at least one ceramic membrane 130 fixed and disposed inside the reaction tank 110 of the water treatment device according to the embodiment of the present invention increases the number or flow rate of the ceramic membrane 130. Accordingly, throughput may increase.

If the number of ceramic separators 130 is increased, the flow rate can be reduced and the pump can be used stably. However, problems such as an increase in initial investment cost and additional maintenance costs arise due to an unnecessary increase in the number of ceramic separators 130. It can happen.

Accordingly, when the flow rate is increased without increasing the number of ceramic separators 130, the number of ceramic separators 130 used can be reduced, but problems such as overloading of the pump used for operation and an increase in the amount of power required for operation occur. may occur.

Accordingly, the throughput can be controlled by appropriately adjusting the number and flow rate of the ceramic separator 130 according to the wastewater characteristics and water treatment process.

The ceramic separator 130 included in the water treatment device according to an embodiment of the present invention may have a flat or flat tube structure including a substrate and a ceramic layer coated on at least one surface of the substrate.

The substrate is not particularly limited, and materials used in the same field may be used, and the ceramic layer may include at least one of alumina (Al ₂ O ₃ ), titania, zirconia, and silicon carbide (SiC), but is limited thereto. It doesn't work.

Preferably, the ceramic layer of the ceramic separator 130 may include alumina, and the flat ceramic separator 130 coated with alumina is applied by immersion to remove particulate/colloidal substances present in wastewater. It can be removed chemically.

The ceramic separator 130 has micropores formed, and depending on the size of the pore size of the ceramic separator 130, microfiltration (MF, 0.1-10㎛) and ultrafiltration (UF) are performed. , 10-100nm), nanofiltration (NF, 1-10nm) and reverse osmosis (RO, ≤ 1 nm).

The ceramic separation membrane 130 included in the water treatment device according to an embodiment of the present invention may be used as a microfiltration membrane for removing floating contaminants with a size of 0.1 ㎛ or larger.

Compared to ultrafiltration, nanofiltration, and reverse osmosis, microfiltration has the advantage of lower pump power consumption because it can be operated at relatively low pressure, and uses nanofiltration and reverse osmosis membranes that can remove dissolved contaminants. When used, it is not suitable because the unit cost of the separation membrane is high and the pore size is small to remove a large amount of suspended contaminants in wastewater, making fouling control difficult.

Additionally, the ceramic separation membrane 130 can adsorb and remove heavy metals present in wastewater.

A water treatment device according to an embodiment of the present invention includes a filter medium 140 in which ion exchange fibers suspended inside a reaction tank 110 are braided.

The water treatment device according to an embodiment of the present invention can remove dissolved contaminants by adding a filter medium 140 containing ion exchange fibers to the reaction tank 110. On the other hand, dissolved contaminants are not removed by the ceramic separation membrane 130.

More specifically, soluble contaminants are removed by reversible exchange with fixed ions protonated in the functional groups of the ion exchange fibers woven into the filter medium. At this time, soluble contaminants and The electrical charge of the fixed ions must be the same.

The filter medium 140 made of ion exchange fibers is used as a fluid media to control fouling occurring in the ceramic separator 130. The technology for controlling fouling generated in the ceramic separator 130 by the filter medium 140 in which ion exchange fibers are braided will be described in detail with reference to FIG. 2 .

In addition, the filter medium 140 in which ion exchange fibers are braided controls fouling generated in the ceramic separator 130 in the reaction tank 110, and the filter medium 140 in which ion exchange fibers are braided is made by braiding ion exchange fibers. Dissolved contaminants can be removed.

Ion exchange fibers have a structure in which a high concentration of functional groups are implanted into a polymer matrix, and as a result, they have a much higher ion exchange capacity and function than existing granular and fiber-structured ion exchange materials. It can have ion exchange capacity, strength, elasticity, and flexibility.

Additionally, dissolved contaminants can be removed by reversible exchange with fixed ions protonated in the functional groups of the ion exchange fiber. At this time, the electrical charges of the dissolved contaminant and the fixed ion must be the same.

In order to control fouling generated in the ceramic separation membrane 130 by adding a fluid media to the reaction tank 110, the water treatment device requires appropriate strength, size, material, specific gravity, etc. of the fluid media.

Representative fluid media used conventionally include granular activated carbon (GAC), powdered activated carbon (PAC), or plastic microbial carriers.

However, in the case of granular activated carbon (GAC), its strength is low and does not damage the surface of the ceramic separator 130, but it is easily broken and the cleaning efficiency is reduced, and powdered activated carbon (PAC) In the case of carbon), there is a problem that it is easily lost because it is very small in size, and in the case of plastic microbial carriers, although the size is suitable for cleaning and does not shred, there is a problem that the separation membrane can be damaged due to its strength.

In addition, conventionally, it was used by attaching microorganisms to remove dissolved contaminants in wastewater, but it has the disadvantage of requiring long-term stabilization to remove dissolved contaminants.

On the other hand, since the use of an ion exchange medium as a flow media is excellent in removing dissolved contaminants, an ion exchange medium such as ion exchange fiber or ion exchange resin can be used.

Generally, ion exchange fibers are in the form of thread, fabric, or knob yarn, and ion exchange resins are in the form of spheres with a size of 0.3 mm to 1.2 mm. These ion exchange fibers and ions When using the exchange resin in the water treatment process, in order to prevent loss of the ion exchange fiber and ion exchange resin and reuse the ion exchange fiber and ion exchange resin, it is used in the form of a fixed bed column, an overflow weir is installed at the top of the reaction tank, or a sedimentation tank is installed. Additional processes and sites, such as additional installation, are required.

That is, when general ion exchange fibers and ion exchange resins are applied to the reaction tank 110 containing the ceramic separator 130 as a fluid media, it is difficult to recover the ion exchange fibers and ion exchange resins for reuse, and the ceramic separator 130 ) Problems such as damage and fouling formation may occur.

However, since the water treatment device according to the embodiment of the present invention uses a filter medium 140 in which ion exchange fibers are braided as a flow media, the filter medium 140 in which ion exchange fibers are braided is 2 cm in size and is used for general ion exchange. Because it is larger than fiber and ion exchange resin, when applied to the reaction tank 110 containing the ceramic separator 130 as a fluid media, it is easy to recover for reuse and does not form fouling.

In addition, unlike powdered activated carbon (PAC) or microbial carriers, dissolved contaminants can be quickly removed without stabilization, and the soft texture of the filter medium 140 made of ion exchange fibers prevents damage to the ceramic membrane 130. Fouling can be controlled without.

Accordingly, the filter medium 140 in which ion exchange fibers are braided has a spherical shape, and the diameter of the spherical shape may be 2 cm, but is not limited thereto and may be adjusted as needed.

Due to the soft texture of the filter medium 140 with ion exchange fibers, the filter medium 140 with ion exchange fibers must be stirred smoothly in order to control fouling without damaging the ceramic separator 130, so the specific gravity is too low. In this case, the problem of floating on the water surface occurs, and if the specific gravity is too high, the problem of smooth stirring occurs, so fouling can be controlled depending on the specific gravity.

The filter medium 140, in which ion exchange fibers are braided, included in the water treatment device according to an embodiment of the present invention is a polymer matrix and an ion exchange resin, which is a particle having a functional group that is bonded to the polymer matrix and exchanges with ions. It may have a structure in which ion exchange fibers formed into a fibrous form by forming a membrane are braided to a filter medium containing false twisted fiber yarns.

Ion exchange fibers have a structure in which the polymer matrix inside the fiber maintains high tensile strength and a high concentration of functional groups are implanted into the polymer matrix. As a result, the existing granular structure and It has significantly higher ion exchange capacity, impurity adsorption capacity, strength, elasticity, and flexibility than fiber-structured ion exchange materials.

Ion exchange fibers have the advantages of high ion exchange ability, impurity adsorption ability, high strength, elasticity, good elasticity, and reusability, so they are manufactured from false twisted fiber yarn (polypropylene, which has high rigidity and great heat resistance, water resistance, and abrasion resistance). If ion exchange fibers are combined with a filter medium (micro chip filter), the treatment efficiency of contaminated water can be increased by removing dissolved ions dissolved in the contaminated water as well as removing turbidity from the contaminated water.

The polymer matrix may include at least one of polyacrylonitrile (PAN) fibers, cellulose-based fibers, polyvinyl alcohol (PVA) fibers, and polyethylene (PE) fibers.

The functional group may include at least one of a cation exchange functional group and an anion exchange functional group, and the functional group is not limited as an appropriate functional group may be used depending on the type of dissolved contaminant to be removed and the characteristics of the sewage and wastewater.

The cation exchange functional group may include at least one of a sulfonic acid group (SO ₃ ^- ) and a carboxyl group (COO ^- ), but is not limited thereto.

The anion exchange functional group may include at least one of an amine group (NH ₃ ⁺ ) and a quaternary ammonium group (N ⁺ (CH ₃ ) ₃ ⁺ ), but is not limited thereto.

The false twisted fiber yarn may include polypropylene, which has excellent rigidity, heat resistance, water resistance, and abrasion resistance.

According to the embodiment, the filter medium 140 in which ion exchange fibers are braided is prepared by plying a first false twisted fiber yarn and a second false twisted fiber yarn with an ion exchange fiber, manufacturing a core using the braided fiber yarn, and manufacturing a core. It may have been created through a process of heat fusion of the core.

The filter medium 140 in which ion exchange fibers are braided is made by plying an ion exchange resin with a first false twisted fiber yarn and a second false twisted fiber yarn, and the ion exchange resin and the first false twisted fiber yarn are mixed at a density ratio of 6:4 to form 5 It constitutes a number of mixed fiber yarns, and the mixed fiber yarn can be spun with the second false twist fiber yarn at a strand number ratio of 1:6.

More specifically, the ion exchange fiber and the first false twisted fiber yarn may be formed by mixing each at a density ratio of 6:4. The mixed and wound fiber yarn may correspond to 5 counts. The reason for mixing the ion exchange fiber and the first false twisted fiber yarn at a density ratio of 6:4, respectively, is to not increase the manufacturing cost without losing the advantages of the ion exchange fiber and the false twisted fiber yarn described above.

The mixed fiber yarn and the second false twisted fiber yarn can be twisted at a strand number ratio of 1:6. For example, it can be spun with 22 strands of mixed fiber yarns and 130 strands of second false twisted fiber yarns. When the filter medium was produced with 22 strands of mixed fiber yarns and 130 strands of second false twisted fiber yarns, the removal amount of T-N (total nitrogen) and T-P (total phosphorus) per strand of mixed fiber yarns [mg/L] was excellent. That is, when the number of second twisted fiber yarns is 130 and the number of mixed fiber yarns is 22, that is, when the mixed fiber yarn and the second false twisted fiber yarn are spun at a strand number ratio of 1:6, T-N (total nitrogen) and T-P (total phosphorus) It can be confirmed that the removal amount per mixed fiber yarn strand [mg/L] is excellent at 2.26 [mg/L] and 3.43 [mg/L], respectively.

In addition, to improve the durability of the core, the braided fiber yarn is tied into a 3-strand knot using 3 strands of third twisted fiber yarn, and heat fusion reduces the overall size of the media, so it must be cut to 3cm. It may be possible.

In addition, the filter medium 140 made of ion exchange fibers used as a fluid media can cause wastewater to flow within the reactor 110. For this purpose, depending on the embodiment, an air aerator (diffuser) for flow may be provided at the bottom of the reactor 110, and the flow media may be flowed to the surface of the ceramic membrane 130 using the air aerator. Therefore, by using the filter medium 140 made of ion exchange fibers, it is possible to simultaneously achieve the removal of dissolved contaminants and the physical cleaning effect due to the surface flow of the ceramic membrane 130.

The water treatment device according to an embodiment of the present invention includes a treated water outlet 150 through which filtered wastewater is discharged through a ceramic separation membrane 130 and a filter medium 140 in which ion exchange fibers are braided.

Depending on the embodiment, a water treatment device according to an embodiment of the present invention may include a discharge pump 150.

Therefore, the water treatment device according to the embodiment of the present invention uses a ceramic separation membrane 130 and a filter media 140 in which ion exchange fibers are braided, and the treated water in which wastewater is filtered is discharged using a discharge pump 150 through the treated water outlet ( 150) and can be discharged or reused.

Figure 2 is a schematic diagram showing a fouling cleaning process of a water treatment device according to an embodiment of the present invention.

Ceramic separation membranes capable of microfiltration can remove organic and inorganic floating contaminants present in wastewater.

More specifically, when influent water (sewage water) flows into the reaction tank, liquid smaller than the pore size of the ceramic separator is filtered, and larger contaminants are filtered out by the ceramic separator. However, when contaminants accumulate on the surface or pores of the ceramic membrane, this is called fouling. Due to fouling, the pores are clogged and even liquid smaller than the pore diameter cannot be filtered, which reduces the performance of the ceramic membrane, that is, the permeation flow rate. You can do it.

However, in order to control such fouling, the water treatment device according to the embodiment of the present invention applies a filter medium in which ion exchange fibers are combined as a fluid media, thereby controlling the physical movement of the filter medium in which ion exchange fibers used as a fluid media are combined. Fouling on the surface of the ceramic separator can be reduced by mechanical scouring.

Therefore, the water treatment device can prevent the permeate flow rate from being reduced due to fouling.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and variations can be made from these descriptions by those skilled in the art. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims and equivalents thereof as well as the claims described later.

110: reaction tank 120: inlet
130: Ceramic separator 140: Filter medium containing ion exchange fibers
150: treated water outlet 160: discharge pump

Claims (8)

A water treatment device that can simultaneously remove dissolved contaminants and floating contaminants in wastewater,
A reaction tank containing the wastewater;
an inlet formed at the bottom of the reaction tank through which the wastewater flows;
At least one ceramic separator fixedly disposed inside the reaction tank;
A filter medium made of spherical ion exchange fibers suspended inside the reaction tank; and
a treated water outlet through which filtered wastewater is discharged through a filter medium in which the ceramic separator and the spherical ion exchange fibers are braided;
A water treatment device comprising:
According to paragraph 1,
A water treatment device characterized in that the filter medium in which the spherical ion exchange fibers are braided controls fouling generated in the ceramic separator.
According to paragraph 1,
The filter medium in which the spherical ion exchange fibers are braided,
A water treatment device characterized in that a polymer matrix formed by combining ion exchange resins with functional groups performing ion exchange functions to form a membrane forms ion exchange fibers, and the ion exchange fibers are braided with false twisted fiber yarns to form a filter medium. .
According to paragraph 3,
The filter medium in which the spherical ion exchange fibers are braided,
The ion exchange fiber and the first false twisted fiber yarn and the second false twisted fiber yarn are spun,
The ion exchange fiber and the first false twisted fiber yarn are mixed at a density ratio of 6:4 to form 5 mixed fiber yarns,
A water treatment device, wherein the mixed fiber yarn is spun with the second false twisted fiber yarn at a strand number ratio of 1:6.
According to paragraph 3,
The polymer matrix is a water treatment device comprising at least one of PAN (Polyacrylonitrile) fibers, cellulose-based fibers, PVA (Polyvinyl Alcohol) fibers, and PE (Polyethylene) fibers.
According to paragraph 3,
The functional group may include a sulfonic acid group (SO ₃ ^- ) and a carboxylic acid group (COO ^- ) as a cation exchange functional group, and an amine group (NH ₃ ⁺ ) and a quaternary ammonium group (N ⁺ (CH ₃ ) as an anion exchange functional group. ₃ ) A water treatment device comprising at least one of the following.
According to paragraph 3,
A water treatment device, characterized in that the false twisted fiber yarn includes polypropylene.
According to paragraph 1,
The ceramic separator is,
A water treatment device comprising a substrate and a ceramic layer coated on at least one surface of the substrate.