Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Aluminium-Pilland Bentonites with Amphoteric Surfactant as a Novel Organoclay for Phosphate Removal

양쪽성 계면 활성제로 치환된 알루미늄 층간가교 유기 벤토나이트를 이용한 수중 인산염 제거

  • Kim, Soo-Hong (Department of Civil Engineering, Hanyang University) ;
  • Kim, Ja-Keun (Department of Civil Engineering, Hanyang University) ;
  • Park, Jae-Woo (Department of Civil Engineering, Hanyang University)
  • 김수홍 (한양대학교 공과대학 토목공학과 환경시스템연구실) ;
  • 김재근 (한양대학교 공과대학 토목공학과 환경시스템연구실) ;
  • 박재우 (한양대학교 공과대학 토목공학과 환경시스템연구실)
  • Received : 2007.07.11
  • Accepted : 2007.11.13
  • Published : 2007.11.30
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Abstract

A novel organoclay has been developed with aluminium-pillared clay modified with an amphoteric surfactant, N-Dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate (DDAPS). This novel organoclay is expected to have phosphorus removal capacity as well as organic and inorganic contaminant removal capacity, due to aluminum inside the clay structure. It also exhibited less surfactant desorption than conventional cation surfactant-based organoclays. Phosphorus in water can be decreased from 0.2 mg/L to 0.0012 mg/L in 27 hours with this organoclay. Also, cadmium could removed from water using this proposed organo-clay. Experiments were performed under various pHs and amphoteric surfactants sorption capability was the highest at pH 5 when more of the amphoteric surfactant head group took on positive charges.

Keywords

References

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