KR20030046159A - Photocatalytic loess deodorant and method for manufacturing the same - Google Patents

Photocatalytic loess deodorant and method for manufacturing the same Download PDF

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KR20030046159A
KR20030046159A KR1020010076601A KR20010076601A KR20030046159A KR 20030046159 A KR20030046159 A KR 20030046159A KR 1020010076601 A KR1020010076601 A KR 1020010076601A KR 20010076601 A KR20010076601 A KR 20010076601A KR 20030046159 A KR20030046159 A KR 20030046159A
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ocher
ball
loess
deodorant
ocher ball
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KR1020010076601A
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Korean (ko)
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유건상
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유건상
김태동
조재천
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Publication of KR20030046159A publication Critical patent/KR20030046159A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
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Abstract

PURPOSE: Provided are loess ball deodorants which remove the odor efficiently by using the domestically abundant loess and photocatalyst, and a preparation method thereof. CONSTITUTION: The loess ball deodorants are characterized in that loess balls(1) containing the copper powders are formed to have the diameter of 1 mm to 10 mm, the loess balls are coated with the photocatalyst(2), and the density is 0.5 g/ml to 0.95 g/ml. The preparation method of the loess ball deodorant comprises a formation step of the loess ball to mix the loess powders and water homogeneously and form into balls(1) having the diameter of 1 to 10 mm, a drying step to dry the loess balls at the temperature of at least 80 deg.C for at least 1 hour, a coating step to coat the loess ball with the TiO2 photocatalyst(2), and a sintering step to sinter the ball at the temperature of at least 600 deg.C for at least 12 hours.

Description

황토볼 탈취제 및 그 제조방법{Photocatalytic loess deodorant and method for manufacturing the same}Loess ball deodorant and its manufacturing method {Photocatalytic loess deodorant and method for manufacturing the same}

본 발명은 황토볼 탈취제 및 그 제조방법에 관한 것으로서, 상세하게는 황토와 광촉매를 이용하여 악취를 효과적으로 제거할 수 있는 황토볼 탈취제 및 그 제조방법에 관한 것이다.The present invention relates to an ocher ball deodorant and a method for manufacturing the same, and more particularly, to an ocher ball deodorant and a method for producing the same, which can effectively remove odors by using ocher and a photocatalyst.

우리나라 황토는 중국 서북부 황토 지대에서 북서풍을 타고 날아온 황사가 수천만년간 퇴적되어 형성된 연황색 퇴적물로서 공극률이 큰 실리카, 알루미나, 산화철 등으로 구성되어 탄산 칼슘에 의해 느슨하게 굳어진 상태로 되어 있다. 황토는 지구 표면에 있는 60 여종의 광물질 가운데 가장 우수한 광물질로 평가받고 있으며 다양한 기능과 성질을 가지고 있다. 이러한 황토는 입자가 곱고 많은 산소를 함유하고 있으며, 60 ℃ 이상으로 가열되면 원적외선(5 ∼ 10 ㎛)이 방사되어 인체의 신진대사를 촉진하고 피로를 풀어주는 역할을 하여 황토를 살아있는 생명체라 부르기도 한다.Ocher in Korea is a light yellow sediment formed by tens of millions of years of yellow sand that has flowed through the northwestern winds in the northwestern part of China. Ocher is regarded as the best mineral among 60 kinds of minerals on the surface of the earth and has various functions and properties. The loess is fine particles and contains a lot of oxygen, and when heated to 60 ℃ or more is emitted far infrared rays (5 ~ 10 ㎛) to promote the metabolism of the human body and to release the fatigue is called the living organism do.

한편, 환경에 대한 국민적인 관심도가 날로 커져감에 따라, 악취도 환경오염을 유발하는 요인으로 인식되고 있다. 악취는 산업이 발전함에 따라 다양한 분야에서 발생되고 있고, 악취에 대한 정부적인 규제 조치가 계속 만들어지고 있다. 이와 같이, 악취를 제거하기 위한 다양한 시도가 여러 분야에서 이루어지고 있는 실정이다.On the other hand, as public interest in the environment increases, odors are also recognized as a cause of environmental pollution. Odor occurs in various fields as the industry develops, and governmental regulatory measures against odor continue to be made. As such, various attempts to remove odor have been made in various fields.

본 발명은 상기와 같은 추세를 반영하여 창출된 것으로서, 국내에 풍부하게 존재하는 황토와 광촉매를 이용함으로써, 새로운 환경오염 요인으로 지적되는 악취를 효과적으로 제거할 수 있는 황토볼 탈취제 및 그 제조방법을 제공하는 것을 목적으로 한다.The present invention was created by reflecting the above-mentioned trends, and by using ocher and photocatalyst which are abundantly existing in Korea, it provides an ocher ball deodorant and a method of manufacturing the same that can effectively remove odors indicated as a new environmental pollution factor. It aims to do it.

도 1은 본 발명에 따른 황토볼 탈취제의 사시도,1 is a perspective view of an ocher ball deodorant according to the present invention,

도 2는 도 1의 황토볼 탈취제를 제조하기 위한 방법을 플로우로 도시한 도면.2 is a flow diagram illustrating a method for producing the ocher ball deodorant of FIG.

<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>

1 ... 황토볼1 ... ocher ball

2 ... TiO2광촉매2 ... TiO 2 Photocatalyst

상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 황토볼 탈취제는, 구리분말이 함유된 황토분말이 1mm ∼ 10mm 의 직경을 가지도록 성형된 황토볼에 광촉매가 코팅되어 구현되고, 그 비중이 0.5 g/ml ∼ 0.95 g/ml 인 것을 특징으로 한다.In order to achieve the above object, the ocher ball deodorant according to the present invention is implemented by coating the photocatalyst on the ocher ball formed so that the ocher powder containing copper powder has a diameter of 1mm ~ 10mm, the specific gravity is 0.5 g / ml to 0.95 g / ml.

상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 황토볼 탈취제 제조방법은, 황토분말과 물을 고르게 혼합한 후 1mm ∼ 10mm 직경을 가지는 볼형상으로 성형하는 황토볼 성형단계(S2); 상기 황토볼을 80℃ 이상에서 1시간 이상 건조시키는 건조단계(S3); 상기 건조된 황토볼에 평균 입경 4nm 이상의 TiO2광촉매를 코팅하는 코팅단계(S4); 상기 TiO2광촉매가 코팅된 황토볼을 600℃ 이상에서 12시간 이상 소결시키는 소결단계(S5);를 포함하는 것을 특징으로 한다.In order to achieve the above object, the ocher ball deodorant manufacturing method according to the present invention, the ocher ball molding step (S2) of uniformly mixing the ocher powder and water to form a ball shape having a diameter of 1mm ~ 10mm; Drying step (S3) for drying the ocher ball at 80 ℃ or more for 1 hour or more; A coating step (S4) of coating the TiO 2 photocatalyst having an average particle diameter of 4 nm or more on the dried ocher ball; And a sintering step (S5) of sintering the ocher balls coated with the TiO 2 photocatalyst at 600 ° C. or more for 12 hours or more.

본 발명에 있어서, 상기 황토볼 성형단계(S2) 이전에, 상기 황토분말에 구리분말을 상기 황토분말 대비 3% ∼ 10% 혼합하는 구리분말 혼합단계(S1)를 더 포함하는 것이 바람직하다.In the present invention, before the ocher ball forming step (S2), it is preferable to further include a copper powder mixing step (S1) of mixing the copper powder in the ocher powder 3% to 10% compared to the ocher powder.

이하, 본 발명에 따른 황토볼 탈취제 및 그 제조방법을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the ocher ball deodorant according to the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 황토볼 탈취제의 사시도이다.1 is a perspective view of an ocher ball deodorant according to the present invention.

도시된 바와 같이, 본 발명의 황토볼 탈취제는, 구리분말이 함유된 황토분말이 1mm ∼ 10mm 의 직경을 가지도록 성형된 황토볼(1)에 TiO2광촉매(2)가 코팅되어 구현되고, 그 비중이 0.5 g/ml ∼ 0.95 g/ml 으로 되어 있다.As shown, the ocher ball deodorant of the present invention is implemented by coating the TiO 2 photocatalyst (2) on the ocher ball (1) formed so that the ocher powder containing the copper powder has a diameter of 1mm ~ 10mm, Specific gravity is 0.5 g / ml-0.95 g / ml.

도 2는 도 1의 황토볼 탈취제를 제조하기 위한 방법을 플로우로 도시한 도면이다.FIG. 2 is a flow diagram illustrating a method for preparing the ocher ball deodorant of FIG. 1.

도시된 바와 같이, 황토볼 탈취제 제조방법은, 크게 구리분말 혼합단계(S1), 황토볼 성형단계(S2), 건조단계(S3), 코팅단계(S4), 소결단계(S5)를 순차적으로 거침으로써 구현된다.As shown, ocher ball deodorant manufacturing method, roughly copper powder mixing step (S1), ocher ball forming step (S2), drying step (S3), coating step (S4), sintering step (S5) sequentially Is implemented.

구리분말 혼합단계(S1)는, 황토분말에 구리분말을 황토분말 대비 3% ∼ 10% 혼합하는 단계이다. 여기서 사용되는 구리 분말은 가능한 입자가 고운 것이 바람직하다.Copper powder mixing step (S1) is a step of mixing the copper powder in the ocher powder 3% to 10% compared to the ocher powder. The copper powder used here is preferably as fine as possible.

황토볼 성형단계(S2)는, 구리분말이 함유된 황토분말과 물을 고르게 혼합한 후 1mm ∼ 10mm 직경을 가지는 볼형상으로 성형하는 단계이다. 이때, 황토분말과 물은 혼합비율은 대략 7:3 정도인 것이 좋으며, 교반기를 통하여 고르게 혼합시켜야 한다. 여기서, 황토분말의 직경은 약 100 ㎛ ∼500 ㎛ 정도인 것이 바람직한데, 본 실시예에서는 직경이 약 221 ㎛ ∼381 ㎛ 정도인 것을 사용하였다.The ocher ball forming step (S2) is a step in which the ocher powder containing copper powder and water are evenly mixed and then molded into a ball shape having a diameter of 1 mm to 10 mm. At this time, the mixing ratio of the ocher powder and water is preferably about 7: 3, and should be mixed evenly through the stirrer. Here, it is preferable that the diameter of the ocher powder is about 100 µm to 500 µm, but in this embodiment, a diameter of about 221 µm to 381 µm was used.

건조단계(S3)는 황토볼 성형단계(S2)에서 성형된 황토볼(1)을 80℃ 이상에서 1시간 이상 건조시키는 단계이다. 본 실시예에서는 100 ℃ 정도의 온도 조건에서 2 시간 정도 건조시킨다.The drying step (S3) is a step of drying the ocher ball (1) formed in the ocher ball forming step (S2) at 80 ℃ or more for 1 hour or more. In the present embodiment, it is dried for about 2 hours at a temperature of about 100 ℃.

코팅단계(S4)는, 건조단계(S3)에서 건조된 황토볼(1)에 직경이 4nm 이상인 TiO2광촉매(2)를 코팅하는 단계이다. 본 실시예에서 사용된 TiO2광촉매의 직경은 5nm 이상인 것을 사용하였다.The coating step (S4) is a step of coating the TiO 2 photocatalyst 2 having a diameter of 4 nm or more on the ocher ball 1 dried in the drying step S3. The diameter of the TiO 2 photocatalyst used in this example was 5 nm or more.

소결단계(S5)는, 코팅단계(S4)에서 TiO2광촉매(2)가 코팅된 황토볼(1)을 노(furnace)에 넣고 600℃ 이상에서 12시간 이상 소결시키는 단계이다. 본 실시예에서는 소결하기 위한 온도조전을 1000℃ ± 100℃ 정도에서 24시간 이상 소결시켰다.In the sintering step (S5), the ocher ball (1) coated with the TiO 2 photocatalyst (2) in the coating step (S4) is put into a furnace (furnace) and sintered at 600 ° C or more for 12 hours or more. In this embodiment, the temperature control for sintering was sintered for at least 24 hours at 1000 ° C ± 100 ° C.

상기와 같은 일련의 단계들에 의하여 제조되는 황토볼 탈취제의 작용,효과를 설명하면 다음과 같다.Referring to the action, effect of the ocher ball deodorant prepared by a series of steps as described above are as follows.

싱기와 같은 구조의 황토볼 탈취제에 380nm 의 광이 조사될 경우에, TiO2광촉매의 가전자대로부터 전도대로 전자가 전이되고, 이에 따라 생성된 정공과 전자가 TiO2광촉매 표면에 흡착된 악취 물질과 반응을 일으키고, 이때 OH 라디칼 및 superoxide 라디칼을 형성하여 강력한 산화작용을 유발한다. 이렇게 유발된 산화력은 황토볼 탈취제에 흡착된 악취 물질들을 분해시키게 되며, 또한 미생물의 표면을 파괴하여 살균 작용을 일으킨다.In if the washing group of 380nm light in the yellow soil ball deodorant of the same structure investigation, and the electrons are transferred to the conduction band from the valence band of the TiO 2 photocatalyst, so that the the generated holes and electrons are adsorbed on TiO 2 photocatalyst surface odorant and Reactions, which form OH radicals and superoxide radicals, causing strong oxidation. The oxidative power induced thus decomposes odorous substances adsorbed on the ocher ball deodorant, and also destroys the surface of the microorganism and causes sterilization.

본 출원인은 황토볼 탈취제의 효능을 확인하기 위하여, 밀폐된 약 20L 용기(탈취 시험용 용기) 안에 황토볼 탈취제(약 30g) 을 넣은 후 뚜껑을 닫고 임펠러(impeller)로 공기를 순환시키면서 악취 발생원(메틸머캡탄, 황화수소, 암모니아, 초산) 각각을 주입하고, 이후 공기와 악취 발생원이 균일한 농도가 되었을 때 초기 농도를 측정하였다. 그리고 약 10분이 경과한 후에 다시 농도를 검지관으로 측정하고, 이와 같은 방법으로 20분, 30분, 40분, 1시간, 2시간 간격으로 악취 발생원 각각의 농도와 탈취율을 측정하였다. 그 결과 하기의 표와 같은 데이터를 얻을 수 있었다.In order to confirm the efficacy of the ocher ball deodorant, the applicant puts the ocher ball deodorant (about 30 g) into a sealed approximately 20 L container (deodorant test container), closes the lid, and circulates the air with an impeller (methyl Mercaptan, hydrogen sulfide, ammonia, acetic acid) and then the initial concentration was measured when the air and odor source were uniform concentration. After about 10 minutes, the concentration was again measured by a detection tube, and the concentration and deodorization rate of each of the odor generating sources were measured at intervals of 20 minutes, 30 minutes, 40 minutes, 1 hour, and 2 hours by the same method. As a result, data as shown in the following table was obtained.

(a) 메틸머캡탄(CH3SH) <생선썩는 냄새>(a) Methylmercaptan (CH 3 SH)

농도(ppm)Concentration (ppm) 탈취율(%)Deodorization rate (%) 0분0 min 6868 0.000.00 10분10 minutes 6262 8.828.82 20분20 minutes 5656 17.617.6 30분30 minutes 4343 36.836.8 1시간1 hours 2828 58.958.9 2시간2 hours 1313 80.980.9

(b) 황화수소(H2S) <계란썩는 냄새>(b) Hydrogen sulfide (H 2 S) <Egg odor>

농도(ppm)Concentration (ppm) 탈취율(%)Deodorization rate (%) 0분0 min 5656 0.000.00 10분10 minutes 4444 21.421.4 20분20 minutes 4040 28.628.6 30분30 minutes 3636 35.735.7 1시간1 hours 2828 50.050.0 2시간2 hours 1616 71.471.4

(c) 암모니아(NH3) <화장실 냄새>(c) ammonia (NH 3 ) <toilet smell>

농도(ppm)Concentration (ppm) 탈취율(%)Deodorization rate (%) 0분0 min 5050 0.000.00 10분10 minutes 2424 52.052.0 20분20 minutes 1414 72.072.0 30분30 minutes 1010 80.080.0 1시간1 hours 66 88.088.0 2시간2 hours 44 92.092.0

(d) 초산(CH3COOH) <김치 냄새>(d) Acetic acid (CH 3 COOH) <Kimchi smell>

농도(ppm)Concentration (ppm) 탈취율(%)Deodorization rate (%) 0분0 min 138138 0.000.00 10분10 minutes 8787 36.936.9 20분20 minutes 6666 52.252.2 30분30 minutes 4242 69.669.6 1시간1 hours 2323 83.383.3 2시간2 hours 1010 92.892.8

상기와 같이 황토볼 탈취제에 의한 탈취율은 확연히 증명된다. 이러한 황토볼 탈취제는, 종래의 물리적 흡착제에 비하여 흡착 용량에 한계가 없고 반영구적으로 사용할 수 있다. 또, 황토볼 탈취제는, 종래의 화학적 탈취제가 악취 물질과 화학적 반응을 하는 과정에서 대기중으로 방출될 수 있는 유해 가스의 가능성을 배제할 수 있어 인체에 전혀 무해하다. 또한, 황토볼 탈취제는, 생물학적 탈취제가 순간적으로 악취를 제거할 수 없는 것에 비하여, 비교적 빠른 시간내에 악취물질의 분해가 가능하다. 그리고, 황토볼 탈취제는, 종래의 귀금속 촉매를 이용한 탈취제에 비하여, 저렴한 TiO2광촉매를 사용함으로써 경제성이 우수한 장점을 지니고 있다. 이러한 황토볼 탈취제는 밀폐된 공간 내부에 있는 화장실, 냉장고, 쓰레기 용기는 물론 생활폐수나 산업폐기물 및 축산 분뇨 등에서 나오는 악취를 확실하게 제거하는 등 광범위하게 악취 제거에 사용될 수 있는 것이다.As mentioned above, the deodorization rate by the ocher ball deodorant is clearly demonstrated. Such ocher ball deodorant can be used semi-permanently without limit in adsorption capacity as compared with the conventional physical adsorbent. In addition, the ocher ball deodorant is completely harmless to the human body since the conventional chemical deodorant can exclude the possibility of harmful gases that can be released into the atmosphere during the chemical reaction with the malodorous substance. In addition, the ocher ball deodorant is capable of decomposing odorous substances in a relatively fast time, compared with biological deodorants which are not able to remove odors at the moment. In addition, the ocher ball deodorant has an advantage of economic efficiency by using an inexpensive TiO 2 photocatalyst, compared to a deodorant using a conventional noble metal catalyst. Such ocher ball deodorant can be widely used to remove odors, such as odors from toilets, refrigerators, garbage containers, as well as domestic wastewater, industrial wastes, and livestock manure.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

상술한 바와 같이 본 발명에 따르면, 반영구적으로 사용할 수 있고, 인체에 무해하며, 빠른 시간내에 악취 제거가 가능하고, 경제성이 좋은 황토볼 탈취제 및 그 제조방법을 제공할 수 있다.As described above, according to the present invention, it is possible to provide semi-permanent, harmless to the human body, to remove odor within a short time, and to provide an economical ocher ball deodorant and a manufacturing method thereof.

Claims (3)

황토분말과 물을 고르게 혼합한 후 1mm ∼ 10mm 직경을 가지는 볼형상으로 성형하는 황토볼 성형단계(S2);Ocher ball molding step (S2) of uniformly mixing the ocher powder and water to form a ball shape having a diameter of 1mm ~ 10mm; 상기 황토볼을 80℃ 이상에서 1시간 이상 건조시키는 건조단계(S3);Drying step (S3) for drying the ocher ball at 80 ℃ or more for 1 hour or more; 상기 건조된 황토볼에 평균 입경 4nm 이상의 TiO2광촉매를 코팅하는 코팅단계(S4);A coating step (S4) of coating the TiO 2 photocatalyst having an average particle diameter of 4 nm or more on the dried ocher ball; 상기 TiO2광촉매가 코팅된 황토볼을 600℃ 이상에서 12시간 이상 소결시키는 소결단계(S5);를 포함하는 것을 특징으로 하는 황토볼 탈취제 제조방법.The ocher ball deodorant manufacturing method comprising a; sintering step (S5) for sintering the ocher ball coated TiO 2 photocatalyst at 600 ℃ or more for 12 hours or more. 제1항에 있어서,The method of claim 1, 상기 황토볼 성형단계(S2) 이전에, 상기 황토분말에 구리분말을 상기 황토분말 대비 3% ∼ 10% 혼합하는 구리분말 혼합단계(S1)를 더 포함하는 것을 특징으로 하는 황토볼 탈취제 제조방법.Before the ocher ball forming step (S2), ocher ball deodorant manufacturing method characterized in that it further comprises a copper powder mixing step (S1) of mixing the copper powder to the ocher powder 3% to 10% compared to the ocher powder. 구리분말이 함유된 황토분말이 1mm ∼ 10mm 의 직경을 가지도록 성형된 황토볼에 TiO2광촉매가 코팅되어 구현되고, 그 비중이 0.5 g/ml ∼ 0.95 g/ml 인 것을 특징으로 하는 황토볼 탈취제.Ocher ball deodorant, characterized in that the ocher ball containing copper powder is coated with a TiO 2 photocatalyst on the ocher ball formed to have a diameter of 1 mm to 10 mm, and its specific gravity is 0.5 g / ml to 0.95 g / ml. .
KR1020010076601A 2001-12-05 2001-12-05 Photocatalytic loess deodorant and method for manufacturing the same KR20030046159A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040034883A (en) * 2002-10-17 2004-04-29 유건상 Loess ball-based water treatment agent and method of manufacturing the same
KR102641751B1 (en) 2023-06-20 2024-02-28 정정순 Antibacterial and deodorizing sintered body having a surface coating layer containing functional metal powder and manufacturing method thereof

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JPS60235637A (en) * 1984-05-09 1985-11-22 Nippon Kasei Kk Adsorbent for gas
KR19990009359A (en) * 1997-07-09 1999-02-05 이서봉 Granular composite molecular sieve for deodorant and its manufacturing method
KR20000009760A (en) * 1998-07-28 2000-02-15 최식영 Ceramic clarifier using loess and fine sand originated from lime and casting sand frame and preparation method thereof
KR20000012864A (en) * 1998-08-01 2000-03-06 고석권 Material for treating water
JP2000317271A (en) * 1999-05-06 2000-11-21 Nissan Motor Co Ltd Adsorbent
KR20010048235A (en) * 1999-11-25 2001-06-15 전형탁 Photo semiconductive composite deodorization & antibacterial filter
KR20020072854A (en) * 2001-03-13 2002-09-19 주식회사 디.아이 A light-catalytic sinter ceramic and its manufactudring method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235637A (en) * 1984-05-09 1985-11-22 Nippon Kasei Kk Adsorbent for gas
KR19990009359A (en) * 1997-07-09 1999-02-05 이서봉 Granular composite molecular sieve for deodorant and its manufacturing method
KR20000009760A (en) * 1998-07-28 2000-02-15 최식영 Ceramic clarifier using loess and fine sand originated from lime and casting sand frame and preparation method thereof
KR20000012864A (en) * 1998-08-01 2000-03-06 고석권 Material for treating water
JP2000317271A (en) * 1999-05-06 2000-11-21 Nissan Motor Co Ltd Adsorbent
KR20010048235A (en) * 1999-11-25 2001-06-15 전형탁 Photo semiconductive composite deodorization & antibacterial filter
KR20020072854A (en) * 2001-03-13 2002-09-19 주식회사 디.아이 A light-catalytic sinter ceramic and its manufactudring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040034883A (en) * 2002-10-17 2004-04-29 유건상 Loess ball-based water treatment agent and method of manufacturing the same
KR102641751B1 (en) 2023-06-20 2024-02-28 정정순 Antibacterial and deodorizing sintered body having a surface coating layer containing functional metal powder and manufacturing method thereof

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