• 제목/요약/키워드: Nondispersive membrane solvent extraction

검색결과 2건 처리시간 0.018초

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

  • 유홍진;한성록
    • 한국산학기술학회논문지
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    • 제5권2호
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    • pp.174-185
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    • 2004
  • 미세기공 중공사형 모듈을 이용한 비분산 막-용매 추출에 의하여 유기오염물을 페수로부터 분리하였다. 시스템은 향류 및 병류로 각각 진행되었으며, 분배계수의 비교로부터 MIBK가 분리용 용매로 선정되었다. 향류의 분리도가 병류보다 우수하였으며, 총괄물질전달계수도 구하였다.

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Removal of Pollutants and Recovery of Toxic Heavy Metals from Wastewater Using Microporous Hollow Fiber Modules

  • Yun, Chang-Han
    • 한국막학회:학술대회논문집
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    • 한국막학회 1993년도 춘계 총회 및 학술발표회
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    • pp.25-27
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    • 1993
  • Multiphase equilibrium-based processes for separation and purification generally utilize dispersed systems in which one phase is dispersed in the other as bubbles or drops or thin films. Using microporous membranes, novel techniques have been developed such that multiphase processes can now be carried out in a nondispersive fashion for gas-liquid (Sirkar, 1992) and liquid-liquid (Prasad and Sirkar, 1992) contacting processes. Among such processes, only nondispersive solvent extraction of pollutants using microporous membranes will be of concern here. These processes employ immobilized immiscible phase interfaces at the pore mouths in a microporous membrane. Through such interfaces, solutes are extracted into the solvent as two immiscible phases flow on two sides of a microporous membrane. Many advantages of such a technique over conventional dispersion-based extractors have been summarized (Prasad and Sirkar, 1992).

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