상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제18권5호
  • /
  • Pages.573-579
  • /
  • 2004
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

수중의 마그네슘과 알루미늄 이온이 기포의 제타전위에 미치는 영향

The Effect of Magnesium and Aluminium Ions on Zeta Potential of Bubbles

  • 한무영 (서울대학교 지구환경시스템공학부) ;
  • 안현주 (서울대학교 지구환경시스템공학부) ;
  • 신민석 ((주)에코프론티어)
  • 투고 : 2003.04.29
  • 심사 : 2004.08.20
  • 발행 : 2004.10.15
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초록

Electroflotation, which is used as an alternative to sedimentation, is a separation treatment process that uses small bubbles to remove low-density particulates. Making allowances for recent collision efficiency diagram based on trajectory analysis, it is necessary to tailor zeta potential of bubbles that collide with negatively charged particles. In this paper, the study was performed to investigate the effects of magnesium and aluminium ions on zeta potential of bubbles. And, it was studied to find out factors which could affect the positively charged bubbles. Consequently, zeta potential of bubbles increased both with higher concentration of metal ions and in the acidic pH value. And, a probable principle that explained the procedure of charge reversal could be a combined mechanism with both specific adsorption of hydroxylated species and laying down of hydroxide precipitate. It also depended on the metal ion concentration in the solution to display its capacity to control the bubble surface.

키워드

참고문헌

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