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Darren Delai Sun
Darren Delai Sun
Singapore
Publications
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Research Article
Relating Water/Solute Permeability Coefficients to the Performance of Thin-Film Nanofiber Composite Forward Osmosis Membrane
Author(s): Song Xiaoxiao, Prince JA and Darren Delai SunSong Xiaoxiao, Prince JA and Darren Delai Sun
The thin-film nanofiber composite (TNC) forward osmosis (FO) membranes are fabricated and systematically modified by a series of post treatments, such as adding additives into the monomer, NaOH treatment, chlorine treatment and support modification. The post treatments lead to the formation of modified membranes with a wide range of water permeability (A) and solute permeability (B) values. The impact of varied A, B and B/A values on the FO performance are systematically investigated. Furthermore, the value of B/A is related to internal concentration polarization (ICP), external concentration polarization (ECP) and solute leakage, which are firstly proposed in this study. Compared with the Pressure Retarded Osmosis (PRO) orientation (i.e., active layer facing draw solution), the water flux is much lower at FO orientation (i.e., active layer facing feed solution) due to severe loss of .. View More»
DOI: 10.4172/2155-9589.1000160