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수학적 귀납법을 이용한 정삼투 및 압력지연삼투 공정의 투과율 불균형 해석Intrinsic Flux Inequality in Forward Osmosis (FO) and Pressure-Retarded Osmosis (PRO) Processes
- Other Titles
- Intrinsic Flux Inequality in Forward Osmosis (FO) and Pressure-Retarded Osmosis (PRO) Processes
- Authors
- Albert S. Kim; 이승원
- Issue Date
- 2015
- Publisher
- 한국막학회
- Keywords
- Forward osmosis; Pressure-retarded osmosis; Internal concentration polarization; Flux inequality; proof by contradiction
- Citation
- 멤브레인, v.25, no.4, pp 367 - 372
- Pages
- 6
- Journal Title
- 멤브레인
- Volume
- 25
- Number
- 4
- Start Page
- 367
- End Page
- 372
- ISSN
- 1226-0088
- Abstract
- In pressure-retarded osmosis (PRO) and forward osmosis (FO) processes, solvent (permeate) flux depends on which surface the draw solution faces. There are two operation modes. PRO mode indicates that the active layer faces the draw solution, and FO mode means that the porous substrate fronts the draw stream. It is often observed that the PRO mode produces higher flux than that of FO under the same operating conditions. The current work uses the method of proof by contradiction, and mathematically proves the intrinsic flux inequality between the two modes.
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