KR20040009096A - Filter media for water purification and its producing method - Google Patents

Abstract

PURPOSE: Provided is a filter made of porphyry, activated carbon, silver-activated carbon, ceramic powder, zeolite, polypropylene and polyolefine and further provided is a method for fabricating the same. CONSTITUTION: The filter comprises 79 to 89 wt.% of activated carbon powder, 3 to 5 wt.% of porphyry powder, 1 to 3 wt.% of silver-activated carbon powder, 2.5 to 3 wt.% of zeolite, 2 to 4 wt.% of ceramic powder, 2 to 4 wt.% of polypropylene, and 0.5 to 2 wt.% of polyolefine. The method comprises the steps of (a) mixing activated carbon powder, porphyry powder, silver-activated carbon, ceramic powder, polypropylene and polyolefine, (b) feeding water to the mixture, (c) compressing the mixture obtained at the step (b) after putting it into a mould, (d) drying the mixture in the mould at temperature of 300 to 350°C for 2 to 4 hrs, (e) cooling the mould at room temperature for 3 to 4 hrs, and (f) taking out the moulded body from the mould.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter medium for water purification,

More particularly, the present invention relates to a filter medium for purifying water and a method for producing the filter medium, and more particularly, to a filter medium for neutralizing heavy metal components contained in tap water, adsorbing and removing pollutants harmful to human body, emitting far infrared rays, generating a trace amount of essential minerals, , A sterilizing agent for bacteria, a minerals such as activated carbon, activated carbon, ceramic powder, zeolite, polypropylene and polyolefin which can increase the amount of dissolved oxygen in tap water, .

Since more than 80% of the human body consists of water, water is closely related to the health of the human body. However, as society becomes highly industrialized, water pollution caused by industrial pollution becomes a social issue, and tap water supplied to each household is supplied to each household, factory, and office through the water system of each river, A large amount of disinfectant is being used. Accordingly, there has been a conventional technology for securing drinking water of good quality in such a reality, so that quartz stone, activated carbon, silver and the like were used as a filter material of a water filter.

However, the conventional techniques proposed for securing drinking water are merely used as each of the elvan stone, the activated carbon and the silver, and an example in which all of them are integrated and compressed and used as a single filter medium has not been attempted. Thus, conventional techniques have not been able to reduce the size of the filter while improving the water purification function for drinking water.

In order to solve the above problems, a technical problem to be solved by the present invention is to neutralize heavy metal components contained in tap water, to adsorb and remove pollutants harmful to the human body, to emit far infrared rays, to generate trace amounts of essential minerals, And a method for producing the same, which has an excellent water purification function capable of increasing the amount of dissolved oxygen in tap water.

It is still another object of the present invention to provide a water purifier capable of reducing the size of a water filter while improving the water purification function of drinking water by properly blending elvan, active carbon, silver activated carbon, zeolite, ceramic powder, polypropylene and polyolefin, And a method for producing the same.

1 is a flow chart of a procedure of a method for manufacturing a water purification filter according to the present invention.

More particularly, the present invention relates to a water-purifying filter material and a method of manufacturing the same, and more particularly, to a water-purifying filter material comprising a bulk material, such as elvan stone, activated carbon, silver activated carbon, ceramic powder, zeolite, polypropylene and polyolefin as main components, And a method for producing the same.

Hereinafter, the present invention will be described in detail.

The water purification filter according to the present invention is characterized in that it comprises 79 to 89% by weight of activated carbon powder, 3 to 5% by weight of elvan powder, 1 to 3% by weight of silver activated carbon, 2.5 to 3% by weight of zeolite, 2 to 4% by weight of ceramic powder, 4% by weight of the polyolefin and 0.5 to 2% by weight of the polyolefin, and the sum of the weight% of each component does not exceed 100%.

The method for producing a water purification filter material according to the present invention comprises mixing a powder of activated carbon, an elvan powder, silver activated carbon, zeolite, ceramic powder, polypropylene and polyolefin; Mixing the mixture in the mixing step with water and re-mixing the mixture; A compression step of compressing the remix mixture remixed in the remixing step into a mold; A drying step of naturally drying the compressed material compressed in the compression step while keeping the mold in a mold, and forcibly drying the compacted material at a high temperature; A cooling step of cooling the dried compact; A demolding step of demolding the compact from the mold; And a control unit.

The mixture contains 79 to 89 wt% of active carbon powder, 3 to 5 wt% of elvan powder, 1 to 3 wt% of silver activated carbon, 2.5 to 3 wt% of zeolite, 2 to 4 wt% of ceramic powder, 2 to 4 wt% And 0.5 to 2% by weight of a polyolefin, and the sum of the weight percentages of the respective components is preferably not more than 100%.

The water added in the re-mixing step is preferably 10 wt% of the total weight of the mixture.

In the drying step, the natural drying time is 1.5 to 2.5 hours at room temperature of 25 to 35 ° C, 2.5 to 3.5 hours at 15 to 25 ° C, 3.5 to 4.5 hours at 5 to 15 ° C, 5.5 hours.

In the drying step, the forced drying is preferably performed for 2 to 4 hours in a mold of 300 to 350 캜.

The cooling in the cooling step is preferably carried out at room temperature for 3 to 4 hours.

Hereinafter, the present invention will be described in more detail.

The water purification filter according to the present invention is characterized in that it comprises activated carbon powder, elvan powder, silver activated carbon, zeolite, ceramic powder, polypropylene and polyolefin, and integrally compressing them.

Activated carbon is an aggregate of amorphous carbon composed of innumerable micropores, and the micropores are composed of innumerable interconnected interconnects and have a large internal surface area. 1 g of activated carbon has a large surface area of 1000 to 1600 m ² , and the distribution of pores is porous surface having a pore structure of 10 Å and existing at 150000 Å. These activated carbons can be classified into various types such as taste, smell, color, precursors of trihalomethane and trihalomethane, organic substances such as anionic surfactants and phenols, ammonia substances, volatile organic compounds such as trichlorethylene, It removes excess fluorine and adjusts the pH.

Quartz Porphyry (Quartz Porphyry) is a semi-plagioclase which varies from region to region but is mainly composed of alkali feldspar and quartz, and has a porous nature. It is composed of Ge (Germanium), SiO ₂ , Al ₂ O ₃ , Fe ₂ O ₃ , CaO, MgO, K ₂ O, TiO ₂ , P ₂ O ₅ and MnO. It is rich in minerals. These minerals adsorb harmful substances such as mercury, cadmium, cyanide, chlorine, and bacteria, and have strong deodorizing action. It contains more than 25000 kinds of minerals, which acts to elute minerals in the water and to continuously supply oxygen in the water. It also alters the quality of water to help self-regulate the quality of the water and emits far-infrared rays.

Silver activated carbon refers to activated carbon coated with silver in order to utilize the sterilizing effect of silver for the purpose of suppressing the propagation of general bacteria. Silver sterilizes harmful bacteria with powerful sterilizing power and acts to absorb and block harmful waves such as electromagnetic waves and snakes.

Zeolite is a natural or synthetic hydrated silicate having a three-dimensional crystal structure, containing sodium, alkali alkali metal such as potassium and alkaline earth metal such as calcium, and contains crystal water. It has the ability to remove ammonia and the ability to remove heavy metals in water quality. In addition, it is possible to substitute with polyvalent ions such as Ca and Mg, thereby lowering hardness of hard water.

Ceramics is a high temperature treatment of inorganic non-metallic raw materials such as kaolin and lime. It contains dozens of trace elements including Zn, Fe, Cu, Co, Al, Ga, Sr, Li, have. It removes heavy metal elements, toxic substances, polluted organic substances, bacteria and unnecessary pigments. It also adsorbs trace amounts of heavy metals and chlorine residues due to its strong adsorption action, sterilizes Escherichia coli and common bacteria in the water by the action of the original external radiation, and elutes minerals into water.

Polypropylene acts as a pretreatment filter, which pretreats impurities first, allowing other additives with different properties to work safely. On the other hand, it acts to remove impurities of 5 microns or more such as rust, soil, sand, dust, and various kinds of dregs and oxides.

Polyolefines are added to reduce the size of the pores of the filter media. As the pore size of the filter medium decreases, the ability to filter harmful bacteria and organic substances increases. In addition, by reducing the size of the pores, the filter medium becomes harder and the channel is not formed, thereby preventing bacteria from living between the pores of the filter medium.

The water purification filter according to the present invention improves the water purification function of the drinking water by properly combining the main components and integrating them. Hereinafter, a test result concerning the water purification function of the water purification filter according to the present invention will be described.

The following table shows the test results for the deodorization test for the water filter material of the present invention.

The KICM-FIR-1004 test method was used to measure the gas concentration with a gas detection tube using ammonia gas. BLANK is measured in a state where the water purifying filter according to the present invention does not pass through.

The following table shows the test results for the antibacterial test on the water-purifying filter material of the present invention.

BLANK is measured in a state where the water purifying filter according to the present invention does not pass through. The strain on the embryo was calculated by adding dilution factors and was performed by the KICM-FIR-1002 test method. The strain used is Esherichia coli 25922, Pseudomonas aeruginosa ATCC 15442.

The following table shows the results of the water quality inspection commissioned by the Korea Environmental Water Institute to the water passed through the filter medium of the present invention.

Hereinafter, a manufacturing method of the water purifying filter according to the present invention will be described below.

First step)

A powder of zeolite, a powder of 2.5 to 3 wt%, a powder of polyvinyl alcohol of 2 to 4 wt%, a polyolefin of 0.5 to 0.5 wt%, an activated carbon powder of 89 to 79 wt%, a granite powder of 3 to 5 wt%, a silver activated carbon of 1 to 3 wt%, a ceramic powder of 2 to 4 wt% To 2% by weight are mixed in a mixer so that the sum of the weight% of each component does not exceed 100%.

Step 2)

Add 10% by weight of the total weight of the mixture to the mixed mixture and remultiplex.

Third step)

The remixed mixture is compressed into a mold according to the size.

Step 4)

The compacted compact is placed in a mold and the temperature is raised to 1.5 to 2.5 hours at a room temperature of 25 to 35 DEG C, 2.5 to 3.5 hours at 15 to 25 DEG C, 3.5 to 4.5 hours at 5 to 15 DEG C, , It is naturally dried for 4.5 to 5.5 hours and forcedly dried in a mold of 300 to 350 DEG C for 2 to 4 hours.

Step 5)

The forced-drying mold is taken out and the compact is naturally cooled at room temperature for 3 to 4 hours.

Step 6)

After cooling, the mold is removed and the compact is demolded from the mold.

The present invention can be more easily understood by the following embodiments relating to a method of manufacturing a water purification filter material. These examples are for illustrative purposes only and are not intended to limit the scope of the invention.

Example 1.

First step)

100 wt.% Of silver powder, 100 wt.% Of activated carbon powder, 100 wt.% Of 100 wt.% Of silver powder, 100 wt.% Of silver powder, 100 wt. 2 wt% of mesh-under, and 0.5 wt% of polyolefin are put in a mixer and mixed for 1 to 3 hours or more.

Step 2)

After mixing, water is added to the total weight of the mixture in an amount of 10% by weight and re-combined for 1 to 2 hours.

Third step)

Considering the shrinkage factor of 10%, the remarried material is put into a molding frame according to the size and compressed by a pressure press of about 3 kg / cm ² .

Step 4)

As a compressed container, it is naturally dried for 2 hours in a workshop at 27 ° C and forced dry for 3 hours in a mold of 300 ° C.

Step 5)

After the forced drying mold is taken out, the compact is naturally cooled at room temperature for 3 hours, and then the mold is removed to remove the foreign substances adhered to the air to complete the filter medium.

The filtering medium for water purification according to the present invention is a filter for filtering water which adsorbs and removes harmful oil, inorganic compounds, various bacteria and heavy metals contained in the raw water and emits far infrared radiation, weak alkalization of raw water, production of trace minerals, And a method for producing the same. Thus, it is possible to provide drinking water of good quality.

In addition, by appropriately mixing elvan stone, activated carbon, silver activated carbon, zeolite, ceramic powder, polypropylene and polyolefin, and integrating and compressing them, it is possible to reduce the size of the water filter while maintaining the water purification function superior to that of the conventional filter.

Claims (7)

Wherein the activated carbon powder is composed of 79 to 89% by weight of activated carbon powder, 3 to 5% by weight of elvan powder, 1 to 3% by weight of silver activated carbon, 2.5 to 3% by weight of zeolite, 2 to 4% by weight of ceramic powder, 2% by weight, and the sum of the weight% of each component does not exceed 100%. Activated carbon powder, elvan powder, silver activated carbon, zeolite, ceramic powder, polypropylene and polyolefin; Mixing the mixture in the mixing step with water and re-mixing the mixture; A compression step of compressing the remix mixture remixed in the remixing step into a mold; A drying step of naturally drying the compressed material compressed in the compression step while being placed in a mold, and forcibly drying the compacted material at a high temperature; A cooling step of cooling the dried compact; A demolding step of demolding the compact from the mold; Wherein the filtration material is water. The method according to claim 2, wherein the mixture comprises 79 to 89 wt% active carbon powder, 3 to 5 wt% quartz powder, 1 to 3 wt% silver activated carbon, 2.5 to 3 wt% zeolite, 2 to 4 wt% ceramic powder, By weight to 4% by weight of the polyolefin, and 0.5 to 2% by weight of the polyolefin, and the sum of the weight% of each component does not exceed 100%. The method for producing a water purification filter material according to claim 3, wherein water added in the re-mixing step is 10 wt% of the total weight of the mixture. The method according to claim 2, wherein the natural drying time in the drying step is 1.5 to 2.5 hours at 25 to 35 ° C, 2.5 to 3.5 hours at 15 to 25 ° C, 3.5 to 4.5 hours at 5 to 15 ° C, Lt; 0 > C for from 4.5 to 5.5 hours. The method of claim 2, wherein the forced drying in the drying step is performed for 2 to 4 hours at a molding temperature of 300 to 350 캜. The method of claim 2, wherein the cooling in the cooling step is performed at room temperature for 3 to 4 hours.