Abstract:
PURPOSE: A method for manufacturing inorganic antibacterial agent is provided to enhance adsorption and substitution rate of antibacterial metal ions and to protect water quality environment. CONSTITUTION: A method for manufacturing inorganic antibacterial agent comprises: a step of dissolving aluminum sulfate in water to prepare an aluminum sulfate solution; a step of mixing the calcium salt with water to prepare slurry; a step of mixing the aluminum sulfate solution and slurry to prepare a mixture solution; a step of heating the mixture solution at 30-150 Deg. C.; and a step of adsorbing or substituting an antibacterial metal ion to calcium aluminum sulphate. The antibacterial includes nickel, cobalt, zinc, chrome, cadmium, lead, arsenic, or copper.
Abstract:
PURPOSE: A heavy metal treating agent based on calcium aluminum sulfate as an effective component is provided to minimize environmental pollution after heavy metal treatment by preventing the elution of absorbed or substituted heavy metals. CONSTITUTION: A method for manufacturing a heavy metal treating agent includes the following: aluminum sulfate is dissolved in water to prepared an aluminum sulfate solution; calcium salt, an aqueous organic solvent, and water are mixed to prepare slurry; the aluminum sulfate solution is mixed with the slurry to prepare a mixed solution; the mixed solution is heated to 30-150 degrees Celsius to hydrothermally synthesize calcium aluminum sulfate; the calcium aluminum sulfate is heated and dried based on ultrahigh frequency waves. The calcium salt is one or more selected from calcium oxide, calcium hydroxide, calcium carbonate, and calcium sulfate. The aqueous organic solvent is one or more selected from 2-butoxy ethanol, 2-ethoxy ethanol, acetone, benzyl alcohol, cetyl alcohol, diethylene glycol, ethyl alcohol, ethylene glycol, and glycerol.
Abstract:
본 발명은 수중에 존재하고 있는 미세 자성분말을 수면위로 분리하는 과정에서 많은 인력이 필요하지 않을 뿐만 아니라, 많은 설비비가 소요되지 않으면서 연속적인 방법에 의해 수중 자성분말을 제거할 수 있는 수중 자성분말 분리장치를 제공하는 데 그 목적이 있다. 이를 위해, 본 발명은 체인으로 연결되고, 구동모터로부터 동력을 전달받는 스프로킷을 수저 및 수면 위에 각각 설치하고, 상기 체인의 상부에 영구자석을 동일선상으로 장착하여 상기 영구자석의 자기력에 의해 수중에 존재하는 자성분말을 영구자석을 덮고 있는 보호커버에 부착시켜 수면위로 끌어올린 후, 분리가이드가 체인의 일부에 영구자석을 장착하지 않음으로 인해 발생된 무자력에 의해 보호커버의 최상단 절곡점에서 자성분말을 탈착시킴으로써, 구동모터의 적은 동력으로도 연속적인 방법에 의해 자성분말을 수면 위로 자동 분리할 수 있다. 자성분말, 체인, 스프로킷, 모터, 보호커버, 분리가이드
Abstract:
PURPOSE: An underwater magnetic powder separator is provided to remove underwater magnetic powder by a successive method while not requiring high facility costs and high manpower. CONSTITUTION: An underwater magnetic powder separator comprises a rotary transfer unit(11), a magnetic force generation unit(14), a separation guide(16) and a drive motor. The rotary transfer unit transfers magnetic powder(10) in underwater to the surface of the water. The magnetic force generation unit is installed inside the rotary transfer unit and enables the rotation and movement. The separation guide separates the magnetic powder transferred by the rotary transfer unit to the surface of the water. The drive motor provides driving force to the rotary transfer unit.
Abstract:
PURPOSE: A composition for preventing harmful algae containing nano silver is provided to ensure eco-friendly condition to human, animal, and environment. CONSTITUTION: A composition for preventing harmful algae contains nano silver as an active ingredient without nitrogen and phosphorus. The nano silver is silver metal or silver oxide of nano size. The nano silver is contained in 0.01-15 weight% based on total weight. A method for preparing the composition comprises: a step of dissolving silver salt in distilled water; a step of filtering and washing carbon salt or carbon gas; and a step of adding organic/inorganic reductant or persulfated salt and hydroxide to form silver salt in a nano size.
Abstract:
본 발명은 수중의 음전하성 부유물질 고속처리용 분말입자에 관한 것으로서, 더욱 상세하게는 자성을 갖는 입자의 표면을, 인체 및 환경친화적이면서 양이온성을 갖는 키토산으로 개질하면, 개질 반응 시 부가적인 2차 오염물질이 발생하지 않으면서 높은 양전하의 성질을 띠게 되어, 음전하를 갖는 수중 부유물질의 흡착이 용이하고, 자력으로 고속분리가 가능하며, 장시간 사용이 가능하여 재활용이 가능한 수중의 음전하성 부유물질 고속처리용 분말입자에 관한 것이다. 마그네타이트, 양전하, 음전하, 키토산