KR100271032B1 - Method of preparing the ceramic body for treating the waste water - Google Patents
Method of preparing the ceramic body for treating the waste water Download PDFInfo
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- KR100271032B1 KR100271032B1 KR1019980024126A KR19980024126A KR100271032B1 KR 100271032 B1 KR100271032 B1 KR 100271032B1 KR 1019980024126 A KR1019980024126 A KR 1019980024126A KR 19980024126 A KR19980024126 A KR 19980024126A KR 100271032 B1 KR100271032 B1 KR 100271032B1
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0097—Anion- and far-infrared-emitting materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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Abstract
Description
본 발명은 폐수처리용 원적외선 방사 세라믹체의 제조방법에 관한 것으로, 좀 더 상세하게는 폐수내 유기물의 분해능 및 물의 정화능을 갖는 폐수처리용 원적외선 방사 세라믹체의 제조방법에 관한 것이다.The present invention relates to a method for producing a far-infrared radiation ceramic body for wastewater treatment, and more particularly, to a method for producing a far-infrared radiation ceramic body for wastewater treatment having a degrading ability of organic matter and water purification ability in wastewater.
일반적으로 세라믹스라함은 고온의 열처리 공정을 거쳐서 합성되는 비금속 무기재료를 의미한다. 이러한 세라믹스들은 통상적으로 원적외선을 방사하는데, 이러한 원적외선은 인체에 유용하여 이를 이용하는 연구가 계속되고 있다.Generally, ceramics means a non-metal inorganic material synthesized through a high temperature heat treatment process. Such ceramics typically emit far infrared rays, and such far infrared rays are useful for the human body, and research using them continues.
예를 들어, 한국 공고특허 제 96-624호에서는 원적외선 방사체를 약품처리된 원단포에 도포하고, 그 다음 키토산 페이스트를 도포시킨 치료용 원적외선 방사체 포를 개시하고 있다. 한국 공개특허 제 93-421호는 흡유용이나 악취제거용으로 다양하게 이용할 수 있도록 한 필터용 세라믹체에 관한 것으로, 그 자체의 여과 및 흡착성이 탁월한 규석, 활석, 백운석, 운모석, 맥반석 등을 선택적으로 혼합하여 제조한 세라믹스체를 개시하고 있다.For example, Korean Patent Publication No. 96-624 discloses a therapeutic far-infrared emitter fabric in which a far-infrared radiator is applied to a chemically treated fabric fabric, and then chitosan paste is applied. Korean Patent Laid-Open No. 93-421 relates to a ceramic body for filters that can be used in various ways for oil absorption or odor removal, and includes silica, talc, dolomite, mica, elvan, and the like having excellent filtration and adsorption. Disclosed is a ceramic body produced by selective mixing.
또한, 한국 공고특허 제 95-1397호에서는 세라믹 재질내에 형성된 미세한 수로를 거쳐 나오는 정수를 원적외선 효과를 부여한 정수기 및 필터용기를 개시하고 있다. 상기 세라믹체는 왕백토, 점토, 활석 및 납석으로 구성되어 있다. 한국 공고특허 제 90-6846호에서는 세라믹이 갖는 기본기능을 이용하여 냄새발생의 근본원인을 제거할 수 있는 냉장고용 탈취제를 개시하고 있다. 국내 공개특허 제 92-9727호에서는 인체에서 방출되는 원적외선 파장대와 흡사한 방사영역을 갖는 의료용 원적외선 방사 세라믹체의 제조방법을 개시하고 있다.In addition, Korean Patent Publication No. 95-1397 discloses a water purifier and a filter container in which the purified water passing through a fine water channel formed in a ceramic material has a far infrared ray effect. The ceramic body is composed of royal clay, clay, talc and feldspar. Korean Patent Publication No. 90-6846 discloses a deodorant for a refrigerator that can eliminate the root cause of odor generation by using a basic function of ceramic. Korean Patent Laid-Open No. 92-9727 discloses a method for manufacturing a medical far-infrared radiation ceramic body having a radiation region similar to the far-infrared wavelength band emitted from the human body.
이와 같이, 세라믹체의 제조방법과 이를 활용하는 실용분야와 방법은 다양하며, 광범위한 분야에 적용되고 있으나, 폐수처리에 적용된 예는 없다.As such, the manufacturing method of the ceramic body and the practical fields and methods using the same are various and applied to a wide range of fields, but there is no example applied to the wastewater treatment.
한편, 각종 산업 폐수 및 고농도 유기 오·폐수(이하 "폐수"라함)는 여러 가지 형태의 처리기술이 일반화되어 있다. 즉, 폐수의 물질적, 화학적 및/또는 생물학적 처리를 통하여 폐수에 함유된 유기 및 무기성 물질을 제거하였다. 그러나, 이러한 방법은 설비 운용에 따른 기술력 및 각종 화학약품 처리비용이 과다하게 발생하여 보다 경제적인 기술의 개발이 요구되는 실정이다.On the other hand, various types of treatment technologies for various industrial wastewater and high concentration organic wastewater (hereinafter referred to as "wastewater") are common. That is, the organic and inorganic substances contained in the wastewater have been removed through physical, chemical and / or biological treatment of the wastewater. However, such a method is required to develop a more economical technology due to excessive technology costs and various chemical treatment costs according to the operation of the facility.
따라서, 본 발명의 목적은 폭기공정 또는 오존처리공정과 같은 후속 공정에서 경제적 및 효율적으로 폐수를 처리할 수 있는 조건을 제공할 수 있는 원적외선 방사 세라믹체의 제조방법을 제공하는데 있다.Accordingly, an object of the present invention is to provide a method for producing a far-infrared radiation ceramic body that can provide conditions for treating wastewater economically and efficiently in a subsequent process such as an aeration process or an ozone treatment process.
상기 목적을 달성하기 위한 본 발명의 제조방법은 마사 50∼70중량%, 맥반석 15∼25중량%, 제오라이트(비석) 5∼15중량% 및 활석 5∼15중량%로 이루어진 세라믹 성분을 100메쉬 이하 분쇄 및 혼합시켜 세라믹 조성물을 제조하는 단계; 소나무재와 대나무재를 1 : 1의 무게비로 혼합하고, 30메쉬 이하로 분쇄시킨 동분을 상기 재 성분과 1 : 1의 무게비로 혼합시키는 단계; 상기 혼합물에 물을 1.5 내지 2.5배(v/v)을 가수하여 100℃에서 8 내지 15시간 정도 가열하여 동을 전처리하는 단계; 및 상기 세라믹 조성물과 전처리된 동을 4∼3 : 1의 무게비로 혼합하여 원하는 형태로 성형한 다음, 약 900℃ 이상에서 소성 또는 소결시키는 단계를 포함한다.The production method of the present invention for achieving the above object is 100% or less of the ceramic component consisting of 50 to 70% by weight of masa, 15 to 25% by weight of ganban stone, 5 to 15% by weight of zeolite (zeolite) and 5 to 15% by weight of talc. Grinding and mixing to prepare a ceramic composition; Mixing pine ash and bamboo ash at a weight ratio of 1: 1, and mixing copper powder pulverized to 30 mesh or less at a weight ratio of 1: 1 with the ash component; Pre-treating copper by heating 1.5 to 2.5 times (v / v) of water to the mixture and heating at 100 ° C. for about 8 to 15 hours; And mixing the ceramic composition and pretreated copper at a weight ratio of 4 to 3: 1 to form a desired shape, and then calcining or sintering at about 900 ° C. or more.
도 1은 본 발명에 따라 폐수처리용 원적외선 방사 세라믹체를 제조하는 공정을 개략적으로 도시한 공정도이다.1 is a process diagram schematically showing a process for producing a far-infrared radiation ceramic body for wastewater treatment according to the present invention.
이하 본 발명을 좀 더 구체적으로 살펴보면 다음과 같다.Looking at the present invention in more detail as follows.
본 발명에 따른 세라믹 조성물은 마사 50∼70중량%, 맥반석 15∼25중량%, 제오라이트(비석) 5∼15중량% 및 활석 5∼15중량%로 이루어진다. 일반적으로 마사토로 형성된 지층에서 나오는 샘물을 감로수라 하는데, 이러한 감로수는 오존(O3)을 약 0.02∼0.03ppm 함유하고 있다. 상기 오존은 활성화된 산소로서 물과 반응하면 쉽게 산소로 환원됨과 동시에 산소분자가 분리되어 매우 강력한 산화 및 각종 물질분해 작용을 일으키고, 강력한 산화력을 가짐으로 살균, 탈취, 탈색 및 중금속이나 폐놀 등의 유해물을 산화시켜 분해 제거하는 효능을 발휘한다. 상기 맥반석은 원적외선을 방사하여 다른 성분의 유기물 및 물의 분해능 및 물의 정화능을 도울 수 있다. 제오라이트는 물의 연화작용을 도와 물의 경도를 0으로 조정할 수 있으며, 활석은 물을 정화할 수다.The ceramic composition according to the present invention is composed of 50 to 70% by weight of martha, 15 to 25% by weight of elvan, 5 to 15% by weight of zeolite (zeolite) and 5 to 15% by weight of talc. In general, the spring water from the stratum formed of Masato is called nectar water, which contains about 0.02 to 0.03 ppm of ozone (O 3 ). The ozone is activated oxygen, and when reacted with water, it is easily reduced to oxygen and at the same time, oxygen molecules are separated to cause very strong oxidation and various decomposition effects, and have strong oxidizing power. It is effective to oxidize and decompose. The elvan can radiate far-infrared rays to assist in the resolution of other components of organic matter and water and the purification of water. Zeolites can help soften water and adjust water hardness to zero, while talc can purify water.
상기 세라믹 조성물의 조합비는 상술한 범위를 다소 벗어나도 본 발명을 수행하는데는 큰 문제는 없지만, 전술한 각 성분의 기능을 최대한 발휘할 수 있는 범위이다.Although the combination ratio of the ceramic composition is slightly out of the above-described range, there is no big problem in carrying out the present invention, but it is a range that can fully exhibit the functions of the above-described components.
한편, 본 발명에서는 상기 세라믹 성분의 활성을 도울 수 있는 촉매로서 동(Cu)을 상기 세라믹에 담지시켜 사용한다. 동은 금, 은, 아연 등과 같이 살균성이 있어 현재 무기 또는 유기 금속염의 형태로 살균제로 사용된다. 이들 금속염은 특히 대장균, 황색포도상균, 간균, 녹농균, 곰팡이, 백선균, 라지오넬라, 비브리오 및 살로넬라균 등에 우수한 살균효과를 나타내는 것으로 알려져 있다. 따라서, 상기 동은 세라믹 성분의 활성을 도울 수 있을 뿐만 아니라 폐수내에 잡균을 제거할 수 있다. 이러한 동은 소나무재 및 대나무재로 전처리하여 사용한다. 상기 재성분은 동에 다공성을 형성시켜 본 발명에 따른 세라믹체가 폐수와 접촉시 활성을 향상시킬 뿐만 아니아 탈취기능도 갖는다.Meanwhile, in the present invention, copper (Cu) is supported on the ceramic and used as a catalyst capable of assisting the activity of the ceramic component. Copper is bactericidal, such as gold, silver and zinc, and is currently used as a disinfectant in the form of inorganic or organometallic salts. These metal salts are known to exhibit an excellent bactericidal effect, especially in Escherichia coli, Staphylococcus aureus, bacillus, Pseudomonas aeruginosa, fungi, ringworm, Lazionella, Vibrio and Salonella. Therefore, the copper can not only assist the activity of the ceramic component but also remove various germs in the wastewater. Such copper is used by pretreatment with pine wood and bamboo wood. The re-component may form a porosity in the copper to improve the activity when the ceramic body according to the present invention in contact with the waste water as well as has a deodorizing function.
본 발명의 방법에 따라 동을 담지시키는 방법은 도 1을 참조하면, 먼저 상기 마사 50∼70중량%, 맥반석 15∼25중량%, 제오라이트(비석) 5∼15중량% 및 활석 5∼15중량%로 이루어진 세라믹 성분을 100메쉬 이하 분쇄 및 혼합하여 세라믹 조성물을 준비하고, 그 다음, 소나무재와 대나무재를 약 1 : 1의 무게비로 혼합하고, 30메쉬 이하로 분쇄시킨 동분을 상기 재 성분과 약 1 : 1의 무게비로 혼합한다. 그후, 상기 혼합물에 물을 1.5 내지 2.5배(v/v)을 가수하여 약 100℃에서 8 내지 15시간 정도 가열하여 전처리한다. 폐이스트(걸죽한 반죽상태) 상태까지 가열한 다음, 먼저 준비된 상기 세라믹 혼합물과 전처리된 동(페이스트 상태)을 약 4∼3 : 1의 무게비로 혼합하여 원하는 형태로 성형한 다음, 약 900℃ 이상에서 소성 또는 소결하여 본 발명의 세라믹체를 제조한다. 상기 세라믹체의 형태는 폐수와의 접촉면적을 많은 형태가 바람직하며, 예를 들어, 일측의 직경이 5∼10cm인 볼형, 원반형, 다각형, 피라밋형 등 여러 가지 형태일 수 있다.Referring to Figure 1, the method of supporting copper according to the method of the present invention, first, 50 to 70% by weight of the mass, 15 to 25% by weight of ganban stone, 5 to 15% by weight of zeolite (zeolite) and 5 to 15% by weight of talc Pulverizing and mixing the ceramic component consisting of 100 mesh or less to prepare a ceramic composition, and then, mixing the pine and bamboo materials in a weight ratio of about 1: 1, and the copper powder pulverized to 30 mesh or less to the ash component and about Mix in a weight ratio of 1: 1. Thereafter, the mixture is pretreated by heating 1.5 to 2.5 times (v / v) of water and heating at about 100 ° C. for about 8 to 15 hours. After heating to a waste yeast state, the first ceramic mixture and pretreated copper (paste state) are mixed at a weight ratio of about 4 to 3: 1 to form a desired shape, and then about 900 ° C. or more. The ceramic body of the present invention is produced by firing or sintering at. The ceramic body is preferably in the form of a large contact area with the wastewater. For example, the ceramic body may have various shapes such as a ball shape, a disk shape, a polygon shape, a pyramid shape, and a diameter of 5 to 10 cm on one side.
이렇게 제조된 세라믹체를 폐수와 접촉시키면 양극전하(＋)를 갖는 세라믹체의 영향을 받아 음이온화(－) 반응을 일으키게 되므로 폐수중의 물은 일부가 이온화 반응을 일으켜 수소와 산소로 분해되어 이온화 고리(H-O-H)를 이룬다. 이러한 이온화 현상은 세라믹체가 방사하는 원적외선 및 촉매인 구리에 의해 더욱 활성화된다. 또한, 유기물 및 무기물은 마사에서 발생하는 오존(O3)과 원적외선에 의해 쉽게 분해될 수 있는 상태로 변한다. 접촉시간이 길어지면, 폐수중에 토양 박테리아, 특히 광합성 세균이 생성(경우에 따라서는 첨가도 가능함)되어 활성화되므로 폐수중의 유기산과 무기산이 분해된다. 광합성세균은 태양 광선의 에네지를 흡수하여 유기산을 분해하면서 수소를 발생시키며, 발생된 수소는 폐수중의 잡균을 살균시키고, 폐수를 pH 7의 중성수로 전환시키는데 크게 기여한다. 이러한 조건은 폭기공정과 같은 후처리 공정에서 처리효율을 상승시킬 수 있다.When the ceramic body thus prepared is brought into contact with the waste water, an anionization reaction is caused by the influence of the ceramic body having a positive charge (+). Form a ring (HOH). This ionization phenomenon is further activated by copper, which is a catalyst and far-infrared radiation emitted from the ceramic body. In addition, organic and inorganic substances are changed into a state that can be easily decomposed by ozone (O 3 ) and far-infrared rays generated in the massage. When the contact time becomes longer, soil bacteria, especially photosynthetic bacteria, are activated (and in some cases may be added) in the waste water, and thus decompose organic and inorganic acids in the waste water. Photosynthetic bacteria absorb the energy of the sun's rays and generate hydrogen while decomposing organic acids, and the generated hydrogen contributes to sterilizing various bacteria in the wastewater and converting the wastewater into neutral water at pH 7. Such conditions can increase the treatment efficiency in a post treatment process such as an aeration process.
본 발명에 따른 세라믹체를 이용하여 처리된 폐수는 후처리 공정, 예를 들어, 폭기공정, 또는 오존처리공정 등을 거쳐 방류시킬 수 있다. 즉, 상기 세라믹체는 후처리공정에서 처리효율을 상승시킬 수 있는 상태로 폐수를 활성화시킴으로써 폐수의 처리효율을 경제적으로 향상시킬 수 있는 것이다.Wastewater treated using the ceramic body according to the present invention can be discharged through a post-treatment process, for example, an aeration process or an ozone treatment process. That is, the ceramic body can economically improve the treatment efficiency of the wastewater by activating the wastewater in a state capable of increasing the treatment efficiency in the post-treatment process.
이하 실시예를 통하여 본 발명을 좀 더 구체적으로 살펴보지만, 하기 예에 본 발명의 범주가 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following examples.
실시예 1Example 1
먼저, 마사 60중량%, 맥반석 20중량%, 제오라이트(비석) 10중량% 및 활석 10중량%를 100메쉬 이하로 분쇄 및 혼합하여 세라믹 혼합물을 준비한다. 그 다음, 소나무재와 대나무재를 약 1 : 1의 무게비로 혼합하고, 30메쉬 이하로 분쇄시킨 동분을 상기 재 성분과 약 1 : 1의 무게비로 혼합한다. 그후, 상기 혼합물에 물을 2배(v/v)을 가수하여 약 100℃로 10시간정도 가열하여 페이스트 상태로 제조하였다. 상기 세라믹 혼합물과 페이스트 상태의 동을 약 3 : 1의 무게비로 혼합하여 최대 직경이 5∼10cm 정도의 볼형, 원반형, 다각형 및 피라밋형로 성형한 다음, 약 900℃ 이상에서 소성하여 본 발명의 세라믹체를 제조하였다.First, 60% by weight of martha, 20% by weight of ganbanite, 10% by weight of zeolite (zeolite) and 10% by weight of talc are ground and mixed to 100 mesh or less to prepare a ceramic mixture. Then, pine and bamboo ash are mixed at a weight ratio of about 1: 1, and copper powder pulverized to 30 mesh or less is mixed with the ash component at a weight ratio of about 1: 1. Thereafter, water was added twice (v / v) to the mixture and heated to about 100 ° C for about 10 hours to prepare a paste. The ceramic mixture and copper in a paste state are mixed at a weight ratio of about 3: 1, and shaped into a ball, disc, polygon, and pyramid shape having a maximum diameter of about 5 to 10 cm, and then fired at about 900 ° C. or more to provide ceramics of the present invention. Sieve was prepared.
시험예Test Example
상기 세라믹체의 성능을 확인하기 위하여 내부 바닥면에 상기 세라믹체가 깔린 순환되는 수로에 탈수처리된 축산폐수 5000ℓ를 60∼80mm/sec의 유속으로 공급하면서 72시간동안 순환시킨 결과, BOD 및 COD가 각각 1000ppm 및 1500ppm 이하로 떨어졌다. 이를 1차 오존처리조에서 pH가 7.8이 될때까지 오존처리한 다음, 침전조로 이동시키고, 폐수에 대해 황산제이철 0.3중량%를 첨가하여 고액분리시켰다. 그 다음, 상등액을 2차 오존처리조로 이동시킨 다음, BOD가 50ppm일 때 방류하였다. 전체적인 공정은 약 15℃에서 수행하였다. 그 결과를 하기 표 1에 기재하였다.In order to confirm the performance of the ceramic body circulated for 72 hours while supplying 5000 liter of livestock wastewater treated at a flow rate of 60 ~ 80mm / sec to the circulated water channel circulating the ceramic body on the inner bottom surface, BOD and COD respectively Fell below 1000 ppm and 1500 ppm. This was ozonated until the pH was 7.8 in the primary ozone treatment tank, then moved to the precipitation tank, and 0.3 wt% ferric sulfate was added to the wastewater to separate the solids. The supernatant was then transferred to a secondary ozone treatment tank and discharged when the BOD was 50 ppm. The overall process was carried out at about 15 ° C. The results are shown in Table 1 below.
비교예 1Comparative Example 1
상기 실시예 1에서 세라믹체와 접촉시키지 않고, 1차 오존처리공정, 침전공정 및 2차 오존처리공정을 동일하게 수행하였다. 그 결과, 유기물의 분해가 안되어 측정의 의미가 없었다.In Example 1, the first ozone treatment step, the precipitation step and the second ozone treatment step were performed in the same manner without contacting the ceramic body. As a result, organic matter was not decomposed and there was no meaning of measurement.
상기 표 1로 부터 알 수 있는 바와 같이, 본 발명의 방법에 따라 제조된 세라믹체는 폭기공정 또는 오존처리공정 등에서 처리효율을 상승시킬 수 있는 상태로 폐수를 활성화시킴으로써 폐수의 처리효율을 경제적으로 향상시킬 수 있다.As can be seen from Table 1, the ceramic body produced according to the method of the present invention economically improve the treatment efficiency of wastewater by activating the wastewater in a state that can increase the treatment efficiency in the aeration process or ozone treatment process, etc. You can.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20010053796A (en) * | 1999-12-01 | 2001-07-02 | 박경주 | Producing method of media for contacting the biomembrane |
| KR20010069157A (en) * | 2000-01-12 | 2001-07-23 | 이성문 | Bio ball and bio ball manufacturing method |
| KR100950231B1 (en) | 2009-09-15 | 2010-03-29 | (주) 화인워터 | Manufacturing method of ceramic ball for water treatment |
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| KR20010079214A (en) * | 2001-06-23 | 2001-08-22 | 이성용 | Ceramics including powder of calcite and/or zeolite and producing method thereof |
| KR100725669B1 (en) * | 2001-10-26 | 2007-06-08 | 손승남 | Moving car recognition system |
| KR20030080352A (en) * | 2002-04-08 | 2003-10-17 | 장시원 | Manufacturing method of far infrared ray radiation ceramic ball |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20010053796A (en) * | 1999-12-01 | 2001-07-02 | 박경주 | Producing method of media for contacting the biomembrane |
| KR20010069157A (en) * | 2000-01-12 | 2001-07-23 | 이성문 | Bio ball and bio ball manufacturing method |
| KR100950231B1 (en) | 2009-09-15 | 2010-03-29 | (주) 화인워터 | Manufacturing method of ceramic ball for water treatment |
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