화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.1361
발표분야 공정시스템
제목 Researchingfor performance of membrane distillation foroperating condtions and design parameter
초록 In reverse osmosis(RO) process, a membrane contactor (MC) may make equipment size, production capacity ratio, energy consumption and waste production decrease.
Membrane distillation(MD), one of the MC is most suitable process for these improvement. Unlike RO process, the driving force of MD process, is the difference of the saturated vapor pressure induced by the difference of temperature. Therefore, MD process is not limited by concentration polarization occurred in RO process, but by temperature polarization. Also MD process use a hydrophobic membrane located between feed side (retentate side) and distillate side (permeate side) because the transport mechanism of MD process is different to one of RO process. The hydrophobic membrane access to only vapor phase of feed stream for permeating through the membrane. Therefore, the MD process can be achieved 100% rejection of ions, macromolecules colloids and other nonvolatile components.
In this study, the mathematical model of MD process is developed and then using the model, the effects of the operating conditions and design parameters are researched.
저자 이성호, 양대륙
소속 고려대
키워드 Membrane distillation; purification; desalination
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