A new approach to the characterization of reverse osmosis membrane by dynamic hysteresis
- Authors
- Lee, Eunsu; Lee, Sangyoup; Hong, Seungkwan
- Issue Date
- 6월-2010
- Publisher
- DESALINATION PUBL
- Keywords
- Membrane characterization; Dynamic hysteresis; RO membrane; Physical surface characteristics
- Citation
- DESALINATION AND WATER TREATMENT, v.18, no.1-3, pp.257 - 263
- Indexed
- SCIE
SCOPUS
- Journal Title
- DESALINATION AND WATER TREATMENT
- Volume
- 18
- Number
- 1-3
- Start Page
- 257
- End Page
- 263
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/116328
- DOI
- 10.5004/dwt.2010.1782
- ISSN
- 1944-3994
- Abstract
- Physical aspects of dynamic hysteresis for characterizing reverse osmosis (RO) membranes have been investigated. Dynamic hysteresis was used as a parameter of showing physical surface characteristics of RO membranes. Automated microbalance was utilized to determine dynamic hysteresis based on the Wilhelmy plate method. Dynamic hysteresis determined with non-polar liquid was related to physical surface characteristics including surface roughness and heterogeneity determined by atomic force microscopy imaging and analysis. A remarkable correlation between dynamic hysteresis and surface heterogeneity was obtained when non-polar liquid was used during the measurements. Dynamic hysteresis increased as the surface heterogeneity of RO membrane increased.
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