화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.15, No.2, 153-162, April, 2004
Export Citation
계면활성제 미셀과 한외여과를 이용한 지하환경 복원
Remediation of Subsurface using Micellar-enhanced Ultrafiltration
백기태, 양지원†
  • 한국과학기술원 생명화학공학과, 대전 305-701
Kitae Baek, and Ji-Won Yang†
  • Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
E-mail:
초록
오염된 지하수와 토양의 복원은 최근 활발히 연구되고 있는 분야이다. 다양한 물리화학적·생물학적 복원기술 중에서 특히 계면활성제를 이용하는 방법이 석유류나 염소계 유기용매로 오염된 지역의 복원에 효과적으로 적용되고 있다. 계면활성제를 사용하는 복원방법 중에서 미셀 한외여과는 광범위한 분야에 사용되고 있다. 계면활성제 미셀이 오염물과 소수성 인력이나 정전기적 인력으로 복합체를 형성하고 이를 한외여과막을 사용하여 여과함으로써 처리하는 기술이다. 미셀 한외여과는 중금속, 소수성 유기 오염물, 영양염류 등의 제거에 적용되며, 무기물과 유기물로 동시에 오염된 부지의 복원에도 적용된다. 이 총설에서는 지금까지 미셀 한외여과가 적용된 다양한 연구결과와 최근의 연구 동향을 소개하고자 한다. 또한 미셀 한외여과의 경제성을 향상시키기 위해 최근에 연구되고 있는 계면활성제의 재순환과 재이용을 간략히 다루기로 하겠다.
Remediation of contaminated-soil and groundwater is a hot issue in environmental engineering. Among various biological and physicochemical remediation technologies, surfactant-enhanced aquifer remediation (SEAR) has been most popular for the clean-up of soil and groundwater polluted with petroleum hydrocarbons, chlorinated solvents, and various heavy metals. Surfactant-enhanced ultrafiltration (MEUF), one of SEAR, is a separation process using surfactants and ultrafiltration membranes, which can remove dissolved organics solutes by hydrophobic interactions between surfactants micelle and organic solutes or ionic pollutants, or by electrostatic interactions between ionic surfactants micelle and ionic contaminants with high rejections. Thus MEUF can be applied to heavy metals removal, organic pollutants removal, nutrients removal, and removal of mixed wastes of organic and inorganic pollutants. This paper reviews various results and recent trends of MEUF research. In addition, surfactant recycling and reuse to enhance process feasibility and economics are briefly introduced.
Keywords:soil remediation;groundwater remediation;micellar-enhanced ultrafiltration;surfactant-enhanced aquifer remediation
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