• 제목/요약/키워드: membrane application

검색결과 1,086건 처리시간 0.032초

연속공정에 의한 UF용 폴리이미드 분리막의 제조

  • 김완주;전종영;탁태문
    • 한국막학회:학술대회논문집
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    • 한국막학회 1995년도 춘계 총회 및 학술발표회
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    • pp.45-45
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    • 1995

  • Filtration, one of the most important process in the various industrials, is defined as the separation of two or more compounds from a fluid by passing the mixture refers to the separation of solid, immisible particles from liquid or gaseous mixture. Membrane filtration which is a type of filtration extends it's application further to include the separation, concentration, and filtration. The main objective of this investigation is the preparation of organic solvents-resistant polyimide membranes by using phase inversion technique and their application as a UF membrane. Specially, the dope solution was prepared from the newly developed method. The newly developed method is that the dope solution was directly prepared from the polyimide solution which was prepared by the modified one-step polymerization. The effects of the parameters for membrane preparation such as the casting solution composition and the casting conditions were investigated and the performance and chemical stabfiity of membrane are going to be tested.

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Ultrafiltration as a pretreatment for seawater desalination: A review

  • Lau, W.J.;Goh, P.S.;Ismail, A.F.;Lai, S.O.
    • Membrane and Water Treatment
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    • 제5권1호
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    • pp.15-29
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    • 2014

  • Reverse Osmosis (RO) desalination has gained wide and increasing acceptance around the world as a straightforward undertaking to alleviate the alarming water crisis. An enhanced monitoring of the quality of the water feeding in seawater RO (SWRO) plant through the application of an effective pretreatment option is one of the keys to the success of RO technology in desalination plants. Over the past 10 years, advances in ultrafiltration (UF) membrane technologies in application for water and wastewater treatment have prompted an impetus for using membrane pretreatment in seawater desalination plants. By integrating SWRO plant with UF pretreatment, the rate of membrane fouling can be significantly reduced and thus extend the life of RO membrane. With the growing importance and significant advances attained in UF pretreatment, this review presents an overview of UF pretreatment in SWRO plants. The advantages offered by UF as an alternative of pretreatment option are compared to the existing conventionally used technologies. The current progress made in the integration of SWRO with UF pretreatment is also highlighted. Finally, the recent advances pursued in UF technology is reviewed in order to provide an insight and hence path the way for the future development of this technology.

  • https://doi.org/10.12989/mwt.2014.5.1.015 인용 KSCI

염료의 탈염/정제/농축처리용 분리막의 제조 및 특성평가 (Preparation and Properties of Membranes for the Application of Desalting, Refining and Concentrating for Dye Processing)

  • 남상용;장재영;정연석;이영무
    • 멤브레인
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    • 제16권3호
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    • pp.213-220
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    • 2006

  • 본 연구에서는 정밀여과 및 나노여과 분리막 시스템을 활용하여 염료 제조 시 필요한 탈염/정제/농축처리 기술을 개발하고 그에 따른 염료의 품질과 품질의 안정성을 향상시키며, 기존공정의 단수를 축소하여 생산성 향상, 인력저감 및 원재료의 비용을 감소하고자 하였다. 염료의 탈염/정제/농축처리시 염료의 다양한 농도에 적합한 분리막의 제조 및 가압식 막 element를 제작하고, 가압식 분리막 시스템에 맞는 막 모듈의 설계와 pilot-scale 시스템을 통해 염료의 처리수질 분석 및 운전인자를 도출하였다.

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