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Characteristics of Nitrate Removal Using Micellar-enhanced Ultrafiltration  

백기태 (한국과학기술원 생명화학공학과 환경복원연구실)
이현호 (LG 환경안전연구원)
김보경 (한국과학기술원 생명화학공학과 환경복원연구실)
김호정 (한국과학기술원 생명화학공학과 환경복원연구실)
양지원 (한국과학기술원 생명화학공학과 환경복원연구실)
Publication Information
Journal of Soil and Groundwater Environment / v.8, no.2, 2003 , pp. 36-43 More about this Journal
Abstract
Feasibility of micellar-enhanced ultrafiltration far the removal of nitrate was investigated using cationic surfactants, cetylpyridinium chloride and octadecylamine acetate. The removal of nitrate increased as the molar ratio of surfactant increased. With the molar ratio of 3, at least 80% of nitrate was removed, while > 98% of nitrate was removed at the surfactant molar ratio of 10. Octadecylamine acetate showed higher removal efficiency of nitrate and higher rejection of surfactant than cetylpyridinium chloride because of the accessibility of nitrate to surfactant micelles due to head group of surfactant. Octadecylamine acetate turned out to be a better surfactant than cetylpyridinium chloride for micellar-enhanced ultrafiltration to remove nitrate from groundwater.
Keywords
nitrate; cetylpyridinium chloride; octadecylamine acetate; micellar-enhanced ultrafiltration;
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