JP2001058111A - Filter for water treatment apparatus and filter for water treatment apparatus connected directly with faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter for a water treatment apparatus which has a long life in terms of a residual chlorine removing capacity irrespective of its compact size to be connected directly with a faucet and can maintain a turbidity removing capacity for a long time. SOLUTION: In a filter 1 for a water treatment apparatus, 60-100 minus mesh granular active carbon and 100 minus mesh powdery active carbon are mixed in a ratio of 1-1 to 4-1. The filter 1 is formed from a solidified binder comprising a polymer whose melt index is 1. 1-2. 3 g/10 min (ASTM D1238, 190 deg.C, 15 kg load).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for a water treatment apparatus used for removing contaminants from tap water, for example, attached to a faucet or the like in ordinary households, and uses activated carbon more efficiently in a compact size. The present invention relates to a filter for a water treatment device or a filter for a water treatment device directly connected to a faucet, which is excellent in water treatment capacity and performance.

[0002]

2. Description of the Related Art Conventionally, a replacement cartridge filter of a water treatment device used in ordinary households has a structure in which activated carbon is used to adsorb and remove chlorine and organic substances, and a hollow fiber membrane is used to remove micro-sized dirt, red rust and bacteria. It is common to have

[0003] As a specific structure, an activated carbon room and a hollow fiber membrane room are respectively housed and arranged in a cartridge composed of a cylindrical container, and water is introduced into the cartridge and sent to the activated carbon room. Removes the smell of mold and mold,
Then, the fiber is sent to a hollow fiber chamber to remove the material that could not be removed with activated carbon (for example, JP-A-10-85729).

Further, a tube made of a hollow fiber membrane is arranged at the center of a cartridge made of a cylindrical container, activated carbon is arranged on the outer periphery thereof, and water is flowed from the outer periphery to pass through the activated carbon layer. Also, a structure in which treated water is discharged from a cartridge by passing through a hollow fiber membrane has been used (JP-A-8-71541).

[0005] In any of the configurations, the activated carbon is used in a state of being stored in a granular form in a room partitioned by a membrane having a small-diameter hole through which activated carbon does not pass and only water passes. Was.

[0006] JP-A-2-17989 discloses a water treatment device in which activated carbon particles are trapped in a porous plastic matrix. Porous plastic
Activated carbon having a small particle size can be used by dispersing activated carbon in a matrix.

US Pat. No. 4,753,728 discloses a filter in which activated carbon is solidified with a polymer, and the polymer is less than 1.0 g / 10 min (ASTM D1).
238, 190 ° C., 15 kg Load) using a low melt index polymer is disclosed.

[0008]

However, first, Japanese Patent Laid-Open No.
In a filter having a structure as disclosed in JP-A-85729 or JP-A-8-71541, the hollow fiber membrane is expensive and the volume ratio of the hollow fiber membrane in the entire filter is large. In order to use as a replacement cartridge filter of a faucet direct-connection type water treatment device which has to be small in terms of weight, the amount of activated carbon used was limited.

Therefore, at present, the life of chlorine and the like is relatively short due to the limited amount of activated carbon used.

Further, when granular activated carbon is used, water is naturally attached to water when passing through the activated carbon layer, and only partially activated carbon can be used. The service life will be shortened.

A filter obtained by dispersing activated carbon in a porous plastic matrix and solidifying it, as disclosed in JP-A-2-17989 and US Pat. No. 4,753,728, is used. By adopting such a structure, it is possible to use activated carbon with a smaller particle size, so that efficiency is improved, and since water can flow through the entire filter, the performance of removing activated carbon such as chlorine can be maintained. It is possible to do.

However, there is no disclosure about use as a filter in a faucet-directly connected water treatment device. Further, the filter of the faucet direct connection type water treatment apparatus is required to be lightweight and small as described above. There was a disadvantage that it could not be obtained. In the case of a faucet directly connected type water treatment device, usually a flow rate of about 2.0 to 3.0 L / min is required, but in order to improve the performance of removing chlorine and the like, powdered activated carbon having a small particle size is used. It was found that there was a problem that a sufficient flow rate could not be obtained when used.

Therefore, the present invention can maintain the performance of removing chlorine and the like by activated carbon for a long period of time, remove dirt and turbidity, and reduce the amount and size of activated carbon used in a water treatment device directly connected to a faucet. It is an object of the present invention to provide a water treatment filter that has high water purification performance and can obtain a sufficient flow rate even in limited applications.

[0014]

According to a first aspect of the present invention, there is provided a water treatment filter for removing contaminants from water, wherein activated carbon has a melt index of 1: 1. 1-2.3g / 10min
(ASTM D1238, 190 ° C, 15 kg Loa
d) a porous filter body solidified with a polymer binder comprising a high molecular weight porous polymer, which has an outer peripheral surface for taking in untreated water and a drain hole for discharging treated water. It is characterized by doing.

By solidifying the activated carbon with the polymer binder and forming a porous filter in this way, water flow can be spread throughout without causing water channels in the filter. It is compact and can obtain high performance in removing chlorine and the like.

Further, by using such a polymer binder having a melt index, the polymer binder does not melt into a liquid when the activated carbon is solidified and does not cover the activated carbon. Since it can act as a binder and can harden the activated carbon with a smaller amount of polymer binder, the amount of activated carbon contained in the filter can be increased and the performance of treating water can be improved. it can.

According to a second aspect of the present invention, an outer surface of the filter body is covered with a porous filtration layer, and a water-impermeable cap which is in water-tight contact with the filter body is disposed on the bottom and top surfaces. The bottom cap has a drain hole.

With such a structure, first, large-sized dust can be removed by the filtration layer, so that clogging of the water treatment filter can be prevented, and the life can be prolonged.

In the third aspect, the activated carbon is 60-10%.
The filter for a water treatment device according to claim 1 or 2, wherein a mixture of 0 mesh pass granular activated carbon and 100 mesh pass powdered activated carbon in a ratio of 1: 1 to 4: 1 is used.

By using a mixture of the two types of activated carbon having the above-mentioned particle diameters, it is possible to maintain sufficient performance for removing chlorine, dirt, and the like by the activated carbon and to obtain a sufficient flow rate. it can.

According to a fourth aspect of the present invention, a polymer binder is added to the activated carbon.
It is said that a filter body containing 0 to 25% by weight and having a density of the solidified filter body of 0.5 to 0.65 g / cm ³ is used.

The flow rate through the filter also depends on the mixing ratio of the activated carbon and the polymer binder and the pressure applied during molding. The density of the solidified filter body is 0.5
By setting it within the range of 0.65 g / cm ^3, a sufficient flow rate can be secured even with a compact size for a water treatment filter, and water stains can be sufficiently removed.

According to a fifth aspect of the present invention, there is provided a filter for a faucet direct-connection type water treatment device for removing contaminants from water used in a water treatment device of a type directly connected to a water tap, wherein the activated carbon has a high molecular weight and a low melt index. A porous filter solidified with a polymer binder, characterized in that the filter has an outer peripheral surface for taking in untreated water and a drain hole for discharging treated water.

As described above, since the activated carbon is solidified with the polymer binder to form a porous filter, water flow is not formed in the filter, and the flow of water can be spread throughout the faucet. It is possible to obtain a direct connection type water treatment device having high performance of removing chlorine and the like by activated carbon even if the size is limited.

According to a sixth aspect of the present invention, a porous filtration layer is disposed on the outer peripheral surface of the filter main body, and an impermeable cap which is in water-tight contact with the filter main body is disposed on the bottom and top surfaces. The bottom cap is provided with a drain hole.

By adopting such a structure, first, large-sized dust can be removed by the filtration layer, so that the life of the filter due to clogging can be extended.

In a seventh aspect, the polymer binder has a melt index of 1.1 to 2.3 g / 10 min (AST).
A high molecular weight porous polymer (MD1238, 190 ° C., 15 kg Load) is used.

By using such a melt index as the polymer binder, the polymer binder does not melt into a liquid when solidifying the activated carbon and does not cover the activated carbon. The activated carbon can be solidified with a lower amount of polymer binder. Therefore, the amount of activated carbon contained in the filter can be increased, and the performance of treating water can be improved.

In claim 8, the activated carbon is 60-100.
It is assumed that a mixture of mesh-pass granular activated carbon and 100-mesh pass powdered activated carbon in a ratio of 1: 1 to 4: 1 is used.

By using a mixture of the two types of activated carbon having the above-mentioned particle diameters, it is possible to maintain a sufficient performance of removing activated carbon such as chlorine and dirt, and to obtain a sufficient flow rate. it can.

In the ninth aspect, a polymer binder is added to the activated carbon.
-25% by weight, and the density of the solidified filter body is 0.5-0.65 g / cm ³ .

The flow rate through the filter depends on the mixing ratio of the activated carbon and the polymer binder and the method of applying pressure during molding. By setting the amount within the range of 0.65 g / cm ³ , it is possible to secure a sufficient flow rate for use as a filter for a faucet direct-connection type water treatment apparatus, and to sufficiently remove water stains.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a filter body used for a filter for a water treatment device of the present invention, FIG. 2 is a perspective view of the filter for a water treatment device, and FIG.
A sectional view, FIG. 4 is a sectional view of the water treatment device.

The filter main body 2 used in the filter 1 for a water treatment device of the present invention is to be attached to a water treatment device S of a faucet direct connection type as shown in FIG. 4, for example. The shape is, for example, a cylindrical shape having a center axis position hole as shown in FIG.

The water treatment filter 1 can be constructed by combining the above filter body 2 with other components. For example, in the case shown in FIG.
A filter layer 3 is coated and arranged on the outer peripheral surface of a cylindrical filter body 2 having a size of about 50 mmφ × 90 to 100 mm.
And is connected with the filter body 2 in a watertight manner so that water does not pass through. Also,
The filter body 2 and the cap 4 on the bottom surface have a hole at the center axis position, and have a structure in which a hole 5 of about 10 to 15 mmφ is provided at the center axis position of the cylinder of the water treatment filter 1.

This water treatment device filter 1 is
The flow of water when it is attached to the filter is to take in water from the filter layer 3 side, remove dirt such as large dust in the filter layer 3, and then pass through the water treatment filter 1 to adsorb and remove residual chlorine and organic substances. Then, the processing is performed in a process of flowing out into the hole 5 and being discharged from the water purification port J of the water treatment device S.

Generally, the water treatment device S is provided with a water purification port J and a raw water port G.
Between the case where the water supplied from the plant is guided by the switching lever C and the like to the water to be processed and the case where the processed water is discharged, and the case where the water supplied without any processing is passed as it is and the raw water is discharged. Has become. When processing is performed, the processing is performed in the above-described process.

The filter body 2 used in the filter 1 for a water treatment device of the present invention is a porous molded body obtained by solidifying activated carbon with a polymer binder. As the polymer binder, a high molecular weight porous polymer having a low melt index is used. Used.

As the activated carbon, those having a mesh pass of 60 mesh or more can be used. If it is less than 60 mesh pass, it becomes difficult to solidify the activated carbon with a polymer binder, and the pores in the filter body 2 become large. The amount of water that passes through the filter body 2 without contacting the activated carbon is increased, and the performance of removing chlorine, dirt, and the like is deteriorated.

As a more preferable form of the polymer binder and the activated carbon used in the above filter body 2, two types of activated carbon having a large particle size and a small particle size are used, and the first activated carbon having a large particle size is 60%. -10
Using a granular activated carbon with a 0 mesh pass, a second
Powdered activated carbon of 100 mesh pass is used. Then, activated carbon having a large particle size and activated carbon having a small particle size are mixed at a ratio of 1: 1 to 4: 1, and such activated carbon is solidified with a polymer binder having a low melt index.

By using such activated carbons having two kinds of particle size distribution in the above ratio,
A powdered activated carbon of 100 mesh pass or more is appropriately present in a gap between granular activated carbons of 60-100 mesh pass,
It is possible to obtain the filter main body 2 having both the performance of removing chlorine and the like and the ability to obtain a sufficient flow rate over a long period of time.

If the first activated carbon is less than 60 mesh pass, it becomes difficult to solidify the activated carbon with the polymer binder, and the voids in the filter body 2 become too large. Since the amount of water that passes through the filter body 2 without contacting the activated carbon increases, the performance of removing water and the like deteriorates, which is not preferable.

If activated carbon finer than 100 mesh pass, for example, 300 mesh pass or more, is used as the second activated carbon, the void portion of the filter main body 2 is reduced and a sufficient flow rate cannot be obtained.

The polymer binder having a low melt index is required to be non-toxic because it can be used as a filter for a water treatment device without any problem. It is preferable that the resin is easy to form. Specifically, it is an ultra-high molecular weight polyethylene having a molecular weight of several hundred thousand to several million, a resin having a particle diameter of about 100 μm and a bulk density of less than 0.3 g / cm ³ , and having a melt index of 1.1. ~ 2.3g
/ 10 min (ASTM D1238, 190 ° C, 15
kg Load).

The polymer binder has a melt index of
1.1 g / 10 min (ASTMD1238, 190
(° C., less than 15 kg Load), the flow during filter molding is poor, and the amount of polymer binder must be increased in order to solidify the activated carbon. Then, the amount of activated carbon occupying in the filter is reduced, so that the performance of treating water is reduced.

Further, the melt index of the polymer binder is 2.3 g / 10 min (ASTM D1238,
When the temperature exceeds 190 ° C. and 15 kg Load, the polymer melted at the time of filter molding covers the pores of the activated carbon, and water cannot pass through the activated carbon, which is not preferable.

Since the polymer binder has a suitable viscosity at a high temperature due to the polymer having the above-mentioned melt index, the polymer melted at the time of molding the activated carbon block may cover the pores of the activated carbon. Absent. Forming a porous body is an effective binder that does not impair the filter function of the activated carbon block.

Further, the mixing ratio of the activated carbon and the polymer binder is from 10 to 25% by weight of the polymer binder to the activated carbon.
And the density of the filter body 2 is 0.5 to 0.6
By having 5 g / cm ³ , for example, in a faucet direct connection type water treatment device, it is possible to secure a flow rate exceeding 2.0 L / min at a normally required dynamic water pressure of 0.1 MPa. is there.

When the blending amount of the polymer binder to the activated carbon is 1
If the amount is less than 0% by weight, it becomes difficult to solidify the activated carbon, and if the amount exceeds 25% by weight, the portion of the polymer binder covering the surface of the activated carbon becomes too large, so that the activated carbon cannot be used effectively. Not preferred.

If the density of the filter body 2 after solidification is less than 0.5 g / cm ³ , the rigidity is lowered, and the filter is brittle and easily broken, which is not preferable.
If it exceeds 0.65 g / cm ³ , it is not preferable because it becomes too hard and there is not enough space in the filter body 2 to obtain a sufficient flow rate.

As a method of forming the filter body 2, the following method can be used. A predetermined amount of activated carbon and a polymer binder are mixed, filled in a mold, heated at about 200 ° C. for a predetermined time, compressed, and cooled to form the filter body 2. By adjusting the amount of compression after the heating, the density of the filter body 2 can be adjusted within the range of 0.5 to 0.65 g / cm ³ as described above.

As described above, two types of activated carbon having a predetermined particle size are mixed at a predetermined ratio, and the melt index of the polymer binder is set to a value within the above-mentioned predetermined range. By setting the ratio to a predetermined range,
Activated carbon has a great effect of removing chlorine and dirt from water, and can secure a sufficient flow rate in terms of flow rate. Therefore, it is possible to provide a filter having sufficient performance and ability even in a state where the weight and size of the filter are limited and compactness is required, as in a faucet direct-connection type water treatment device.

By arranging the filter layer 3, the filter layer 3 functions as a primary filter, and can prevent early clogging of the solidified activated carbon block. It is only necessary to remove a material having a size equivalent to 5 μmφ or more in terms of a spherical shape. For example, a fiber material such as a nonwoven fabric or a woven fabric can be used. A thickness of about 0.5 mm can be used, and the basis weight is about 50 to 100 g / m ³ . By doing so, it is possible to remove dirt having a size that easily causes clogging in the filter main body 2 and also prevent a problem that clogging occurs in the filtration layer 3.

In addition to the activated carbon described above, an additive capable of removing water stains and chlorine may be separately mixed into the filter body 2.
The present invention also includes the use of the filter for a water treatment device of the present invention in combination with another filter having a water purification effect, in addition to the filter main body 2 described above.

Next, the effects of the present invention were confirmed by using Examples of the present invention and Comparative Examples.

[0056]

[Example 1] 60-100 mesh pass granular activated carbon and 100 mesh pass powdered activated carbon were mixed at a ratio of 2 to 1, and 1.5 g / 10 min (ASTM D12).
38, 190 ° C., 15 kg Load) high molecular weight porous polymer (Hostale, manufactured by Ticona Gmbh)
nGUR2105) was added in an amount of 15% by weight, heated at 200 ° C. for 1 hour in a predetermined mold, cooled, and the amount of compression was adjusted.
An activated carbon block having an outer diameter of 45 mm, an inner diameter of 11 mm, and a length of 92 L is formed so that the solidified activated carbon block density becomes 0.55 g / cm ^3, and the outer circumference is wound with a nonwoven fabric, and both sides are formed with holes in at least one side. And capped with a polyethylene resin to obtain a filter for a water treatment device. The obtained water treatment filter was used to test household water purifiers (J
IS S 3201: 1999) or water purifier (J
Evaluation of the initial filtration flow rate and the ability to remove residual chlorine and turbidity were performed according to (WWA S 102: 1998).

Example 2 A 60-100 mesh pass granular activated carbon and a 100 mesh pass powdered activated carbon were mixed at a ratio of 5: 1, and a filter for a water treatment device was formed in the same manner as in the other embodiments. The evaluation was performed by the following method.

Example 3 A 60-100 mesh pass granular activated carbon and a 100 mesh pass powdered activated carbon were mixed at a ratio of 1: 2, and a filter for a water treatment device was formed in the same manner as in the other examples. The evaluation was performed by the following method.

[Comparative Example 1] A filter having a granular activated carbon + hollow fiber membrane structure, a structure filled with 60-100 mesh passes of granular activated carbon and a polyethylene hollow fiber membrane having a pore diameter of about 0.1 micron. The evaluation was carried out in the same manner as in the example, using a filter for a water treatment device having approximately the same size as that of the example, in which the volume of the filter was about half.

[0060]

[Table 1]

The numerical value indicating the removal capacity is the total amount of filtered water filtered so that 80% of the raw water concentration can be removed and maintained. In the case of turbidity, the evaluation was terminated when the flow rate became lower than 1.0 L / min due to clogging of the filter. (The raw water for residual chlorine removal evaluation was 2
(ppm, raw water for turbidity removal ability evaluation is 10 degrees) In Example 1, it can be confirmed that the residual chlorine removal ability was significantly improved as compared with Comparative Example 1, and the turbidity removal ability was also maintained. In Example 2, although the initial filtration flow rate is secured,
Although the respective removal capacities are not as good as Comparative Example 1, they are excellent in the initial processing flow rate.

In Example 3, the initial processing flow rate and the turbidity removing ability were inferior, but the residual chlorine removing ability was excellent.

[0063]

As described above, according to claim 1 of the present invention, in a filter for a water treatment device for removing contaminants from water, activated carbon has a melt index of 1.1 to 2.
3g / 10min (ASTM D1238, 190 ° C,
The filter body comprises a porous filter body solidified with a polymer binder comprising a high-molecular-weight porous polymer of 15 kg Load). The filter body has an outer peripheral surface for taking in untreated water, and a drain hole for discharging treated water. It is characterized by having.

As described above, by solidifying the activated carbon with the polymer binder and forming a porous filter, the water flow in the filter is not formed, and the flow of the water can be spread throughout the filter. Even with a more compact size, it is possible to obtain high performance in removing chlorine and the like by activated carbon.

Further, by using such a polymer binder having a melt index, when the activated carbon is solidified, the polymer binder does not melt to a liquid state and does not cover the activated carbon. Since it can act as a binder and can harden the activated carbon with a smaller amount of polymer binder, the amount of activated carbon contained in the filter can be increased and the performance of treating water can be improved. it can.

In the second aspect, a porous filtration layer is disposed on the outer peripheral surface of the filter body, and the bottom and top surfaces are covered with a water-impermeable cap, and the cap is in contact with the filter body in a watertight manner. And a hole at a position corresponding to the drain hole provided in the filter body.

With such a structure, the first
As a step, large-sized dust can be removed by the filtration layer, so that the life due to clogging of the filter can be extended.

According to a third aspect, the activated carbon is 60-10%.
The filter for a water treatment device according to claim 1 or 2, wherein a mixture of 0 mesh pass granular activated carbon and 100 mesh pass powdered activated carbon in a ratio of 1: 1 to 4: 1 is used.

By using a mixture of the two types of activated carbon having the above-mentioned particle diameters, it is possible to maintain sufficient performance of removing activated carbon such as chlorine and dirt, and at the same time, to obtain a sufficient flow rate in actual use. Can be obtained.

According to a fourth aspect of the present invention, the activated carbon is provided with one polymer binder.
It is said that a filter body containing 0 to 25% by weight and having a density of the solidified filter body of 0.5 to 0.65 g / cm ³ is used.

When the flow rate of water passing through the filter body is sufficient, the mixing ratio between the activated carbon and the polymer binder and the method of applying pressure when forming the filter into a cylindrical shape or the like are also considered. By setting the solidified state within the range of 0.5 to 0.65 g / cm ^3, a sufficient flow rate of water is ensured even if the filter is a compact size for a water treatment device. And can sufficiently remove water stains.

According to a fifth aspect of the present invention, there is provided a filter for a faucet direct-connection type water treatment apparatus for removing contaminants from water used in a water treatment apparatus of a type directly connected to a water tap, wherein the activated carbon has a high molecular weight and a low melt index. The filter body comprises a porous filter body solidified with a polymer binder, the filter body having an outer peripheral surface for taking in untreated water, and a drain hole for discharging the treated water provided. .

As described above, the activated carbon is solidified with the polymer binder to form a porous filter, so that the water flowing in the filter is not formed, and the flow of the water can be spread throughout the filter. As a result, even if it is a faucet direct-connection type water treatment device having a limited size, it is possible to obtain high performance in removing chlorine and the like by activated carbon.

According to a sixth aspect of the present invention, a porous filtration layer is disposed on the outer peripheral surface of the filter body, and the bottom and top surfaces are covered with a water-impermeable cap, and the cap comes into contact with the filter body in a watertight manner. And a structure having holes at positions corresponding to drain holes provided in the filter body.

With such a structure, the first
As a step, large-sized dust can be removed by the filtration layer, so that the life due to clogging of the filter can be extended.

In claim 7, the polymer binder has a melt index of 1.1 to 2.3 g / 10 min (AST).
A high molecular weight porous polymer (MD1238, 190 ° C., 15 kg Load) is used.

By using such a melt index as the polymer binder, the polymer binder does not melt into a liquid when solidifying the activated carbon and does not cover the activated carbon. Since the activated carbon can be hardened with a smaller amount of the polymer binder, the amount of activated carbon contained in the filter can be increased, and the performance of treating water can be improved.

In claim 8, the activated carbon is 60-100.
It is assumed that a mixture of mesh-pass granular activated carbon and 100-mesh pass powdered activated carbon in a ratio of 1: 1 to 4: 1 is used.

By using a mixture of the two types of activated carbon having the above-mentioned particle diameters, it is possible to maintain sufficient performance for removing chlorine, dirt, and the like by activated carbon, and at the same time, to obtain a sufficient flow rate in actual use. Can be obtained.

In the ninth aspect, a polymer binder is preferably added to the activated carbon.
-25% by weight, and the density of the filter body is 0.5-0.65 g / cm ³ .

When the flow rate of water passing through the filter body is sufficient, the mixing ratio between the activated carbon and the polymer binder and the pressure applied when the filter body is formed into a cylindrical shape or the like may be used. In the solidified state, it is set within the range of 0.5 to 0.65 g / cm ³ to secure a sufficient flow rate of water to be used as a filter for a faucet direct-connection type water treatment device. And can sufficiently remove water stains.

[Brief description of the drawings]

FIG. 1 is a perspective view of a filter body of the present invention.

FIG. 2 is a perspective view of the water treatment air filter of the present invention.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a sectional view of a water treatment device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water treatment device filter 2 Filter body 3 Filtration layer 4 Cap 5 hole

Continued on the front page F term (reference) 4D019 AA03 BA03 BA17 BB01 BB03 BB10 BC05 BC10 BD01 CA03 4D024 AA02 AB04 AB07 AB11 BA02 BB01 BB05 BB08 BC01 CA13 DB03 4D064 AA17 BJ02 BJ04 BJ05 BJ07 EA01

Claims (9)

[Claims] 1. A filter for a water treatment device for removing contaminants from water, wherein activated carbon has a melt index of 1.1 to 2.3 g / 10 min (ASTM D12).
38, 190 ° C., 15 kg Load) comprising a porous filter body solidified with a polymer binder comprising a high molecular weight porous polymer, the filter body comprising an outer peripheral surface for taking up untreated water, and a water treated body. A filter for a water treatment device having a drain hole for discharging. 2. A filter having a porous filtration layer disposed on an outer peripheral surface of a filter main body, and an impermeable cap which is in contact with the filter main body in a watertight manner is disposed on a bottom surface and a top surface, The filter for a water treatment device according to claim 1, wherein a drain hole is provided in the bottom cap. 3. The filter for a water treatment apparatus according to claim 1, wherein a mixture of 60-100 mesh pass granular activated carbon and 100 mesh pass powdered activated carbon in a ratio of 1: 1 to 4: 1 is used as the activated carbon. . 4. The activated carbon is blended with a polymer binder in an amount of 10 to 25% by weight, and the density of the filter body is 0.5 to 5%.
Water treatment dexterity filter according to any of claims 1 to 3 is 0.65 g / cm ^3. 5. A filter for a faucet direct connection type water treatment device for removing contaminants from water used in a water treatment device of a type directly connected to a water tap, wherein activated carbon is a polymer binder having a high molecular weight and a low melt index. A filter for a water tap directly connected to a faucet, comprising a solidified porous filter main body, said filter having an outer peripheral surface for taking in untreated water and a drain hole for discharging treated water. 6. A porous filter layer is disposed on the outer peripheral surface of the filter main body, and an impermeable cap which is in contact with the filter main body in a watertight manner is disposed on a bottom surface and a top surface, 6. A water tap filter according to claim 5, wherein a drain hole is provided in the bottom cap. 7. A polymer binder having a melt index of 1.1 to 2.3 g / 10 min (ASTM D12
The filter for a water tap directly connected to a faucet according to claim 5 or 6, wherein a high molecular weight porous polymer having a temperature of 38, 190 ° C and a load of 15 kg) is used. 8. The faucet according to claim 5, wherein the activated carbon is a mixture of granular activated carbon of 60-100 mesh pass and activated carbon of 100 mesh pass at a ratio of 1: 1 to 4: 1. Filter for direct connection type water treatment equipment. 9. The activated carbon is blended with a polymer binder in an amount of 10 to 25% by weight, and the filter body has a density of 0.5 to 0.5%.
Faucet type water treatment dexterity filter according to any of claims 5 to 8 which is 0.65 g / cm ^3.