Proceedings of the Korean Society of Soil and Groundwater Environment Conference (한국지하수토양환경학회:학술대회논문집)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
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Comparison of different surfactant system for simultaneous removal of nitrate and phosphate using micellar-enhanced ultrafiltration

  • 김보경 (한국과학기술원 생명화학공학과 환경복원연구실) ;
  • 백기태 (한국과학기술원 생명화학공학과 환경복원연구실) ;
  • 김호정 (한국과학기술원 생명화학공학과 환경복원연구실) ;
  • 이율리아 (한국과학기술원 생명화학공학과 환경복원연구실) ;
  • 양지원 (한국과학기술원 생명화학공학과 환경복원연구실)
  • Published : 2003.09.01
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Abstract

Three kinds of surfactant systems - cationic surfactant (system 1), combinition of two cationic surfactants (system 2), and combination of two cationic surfactant and non-ionic surfactant (system 3) - for the simultaneous removal of nitrate and phosphate by micellar-enhanced ultrafiltration (MEUF) were investigated. The highest removal efficiencies of nitrate and phosphate were observed in system 2, which were 90 % of nitrate and 72 % of phosphate. The COD of permeate in system 3 was the lowest, because the added non-ionic surfactant made critical micelle concentration (CMC) lower than that of other surfactant systems. In all systems, the flux decline was similar.

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