Abstract:
A ceramic membrane diffuser which can generate microbubbles although a low air pressure of about one atmospheric pressure is applied to the ceramic membrane diffuser, and can perform a flotation operation of high concentrated contaminants promptly and certainly by improving the size and uniformity of the microbubbles generated from the ceramic membrane diffuser, and a method and a device for manufacturing the ceramic membrane diffuser are provided. A device for manufacturing a silica or alumina ceramic membrane diffuser for generating microbubbles comprises: (i) a support(13) and a press(15); (ii) a female mold(1) which is fixed to the support, in which a molding hole(7) for filling a raw material powder is formed, and which includes a piston(9) that forms the bottom of the molding hole; and (iii) a male mold(3) connected to the press. The device is a manufacturing device of a disc type diffuser or a pipe type diffuser. The manufacturing device of a disc type diffuser further comprises an ultrasonic oscillator(5) installed in the support or/and the female mold. The manufacturing device of a disc type diffuser further comprises a vibration separation member(11) for blocking vibration transmission formed on an adjacent portion of the ultrasonic oscillator and the support.
Abstract:
본 발명은 수중 퇴적오염물 내에 포함되어 있는 유해물질이 용출되는 것을 방지함과 함께 시간의 흐름에 따라 자연 분해될 수 있는 생분해성 필름을 이용한 수중 퇴적오염물 현장정화방법에 관한 것으로서, 본 발명에 따른 생분해성 필름을 이용한 수중 퇴적오염물 현장정화방법은 생분해성 필름을 캡핑재로 이용하고, 상기 캡핑재를 수중 퇴적오염물 상에 도포하며, 상기 캡핑재와 수중 퇴적오염물 사이에 유기성 바이오매스를 구비시켜 상기 유기성 바이오매스가 생분해성 필름을 분해하는 천연 미생물의 탄소원으로 작용하도록 하는 것을 특징으로 한다. 이 때, 상기 생분해성 필름은 폴리 락타이드계, 폴리 카프로락톤계, 전분계, 폴리 하이드록시뷰틸레이트계, 폴리에스터계 재질의 생분해성 필름 중 어느 하나일 수 있다. 캡핑, 퇴적오염물, 생분해성필름
Abstract:
본 발명은 SF 6 의 회수율을 향상시킴과 함께 SF 6 회수를 위한 추가 공정이 요구되지 않는 SF 6 분리막 모듈 및 이를 이용한 SF 6 회수장치에 관한 것으로서, 본 발명에 따른 SF 6 회수장치는 SF 6 을 포함하는 혼합기체를 저장하는 혼합기체 공급탱크와, 상기 혼합기체 공급탱크로부터 혼합기체를 공급받아 혼합기체 내의 SF 6 농도를 일정하게 유지하는 혼합기체 안정화탱크와, 상기 혼합기체 안정화탱크로부터 공급되는 혼합기체를 SF 6 와 여타기체로 분리하는 SF 6 분리막 모듈 및 상기 SF 6 분리막 모듈의 장착 공간을 제공함과 함께 상기 SF 6 분리막 모듈의 온도를 일정하게 유지시키는 역할을 하는 항온유지장치를 포함하여 이루어지는 것을 특징으로 한다. 육불화황, 회수, 분리
Abstract:
PURPOSE: A thermo-responsive micelle, a manufacturing method thereof, a harmful material processing method using the thermo-responsive micelle are provided to effectively collect harmful chemical materials by selectively progressing collecting and releasing the harmful materials. CONSTITUTION: A thermo-responsive micelle comprises a core region and a cell region. The core region is composed of a hydrophobic polymer. A cell region is composed of an amphiphilic polymer. The amphiphilic polymer has hydrophilic property at a critical solution temperature or greater and has hydrophobicity at a critical solution temperature or less. When the amphiphilic polymer has the hydrophilic property, a collection area is formed between the core region and the cell region.
Abstract:
A silica or alumina ceramic diffuser comprising particles that are dense and uniform and have an ideal particle size distribution is provided to generate microbubbles constantly, a method for manufacturing the silica or alumina ceramic diffuser is provided, and a method for floating contaminants using the silica or alumina ceramic diffuser is provided. A silica or alumina ceramic diffuser for generating microbubbles is characterized in that the diffuser is manufactured by firing a silica powder or alumina powder compact, used for the flotation of contaminants from sewage or wastewater, and formed in the form of a pipe having a length of 16 to 100 cm. In a manufacturing method of a pipe type silica or alumina ceramic diffuser, a method for manufacturing a silica or alumina ceramic diffuser for generating microbubbles comprises: a first step of preparing a wet silica or alumina powder; a second step of injecting the wet powder into an extruder; a third step of installing an oscillator on a nozzle of the extruder; a fourth step of applying vibration to the powder by the oscillator and pressurizing the powder to subject the powder to extrusion molding; and a fifth step of firing a molded article extruded from the nozzle in an oxidation atmospheric heat treatment furnace.