• Title/Summary/Keyword: Membrane Solvent Extraction

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Separation of Organic Pollutants by Nondispersive Membrane-Solvent Extraction (비분산 막-용매추출에 의한 유기오염물의 분리)

  • 유홍진;한성록
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.5 no.2
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    • pp.174-185
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    • 2004
  • Organic pollutants (Phenol, 2-Chlorophenol, Nitrobenzene) were separated from wastewater by nondispersive membrane solvent extraction, using a microporous hydrophobic hollow fiber module. The system was operated countercurrently and cocurrently with the aqueous phase flowing through the fiber lumens and the solvent flowing through the shell side. The distribution coefficients of several solvents (MIBK, IPAc, Hexane) were examined and MIBK was selected as an extracting solvent. Separation efficiency of countercurrent flow method was better than that of cocurrent flow method. Also, the overall mass transfer coefficients were determined.

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Removal of Organic Pollutants from Aqueous Solution by Hollow Fiber Module (중공사모듈에 의한 수용액으로부터 유기오염물의 제거)

  • 유홍진
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.4 no.2
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    • pp.114-119
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    • 2003
  • This study is to remove several organic pollutants from wastewater by non-dispersive membrane solvent extraction technique. The distribution coefficients of several solvents were determined and the experimental system was operated counter-currently and cocurrently with respect to the aqueous phase and solvent. In these experiments, as the flow rate of aqueous solution inclosed, due to being shortened contact time to solvent, the rate of removal of organic pollutants decreased and as the flow rate of solvent increased, the rate of removal increased. Meanwhile, the rate of removal of organic pollutants for the countercurrent flow system was higher than that for the occurrent flow system.

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