TY - JOUR
T1 - Combined organic-inorganic fouling of forward osmosis hollow fiber membranes
AU - Arkhangelsky, Elizabeth
AU - Wicaksana, Filicia
AU - Tang, Chuyang
AU - Al-Rabiah, Abdulrahman A.
AU - Al-Zahrani, Saeed M.
AU - Wang, Rong
N1 - Funding Information:
We would like to thank King Saud University of Riyadh, Saudi Arabia for the financial support of the work. We are also grateful to Mr. Chou Shuren for making FO modules for this study. Funding support from Singapore Economic Development Board to Singapore Membrane Technology Centre is gratefully acknowledged.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - This research focused on combined organic-inorganic fouling and cleaning studies of forward osmosis (FO) membranes. Various organic/inorganic model foulants such as sodium alginate, bovine serum albumin (BSA) and silica nanoparticles were applied to polyamide-polyethersulfone FO hollow fiber membranes fabricated in our laboratory. In order to understand all possible interactions, experiments were performed with a single foulant as well as combinations of foulants. Experimental results suggested that the degree of FO membrane fouling could be promoted by synergistic effect of organic foulants, the presence of divalent cations, low cross-flow velocity and high permeation drag force. The water flux of fouled FO hollow fibers could be fully restored by simple physical cleaning. It was also found that hydrodynamic regime played an important role in combined organic-inorganic fouling of FO membranes.
AB - This research focused on combined organic-inorganic fouling and cleaning studies of forward osmosis (FO) membranes. Various organic/inorganic model foulants such as sodium alginate, bovine serum albumin (BSA) and silica nanoparticles were applied to polyamide-polyethersulfone FO hollow fiber membranes fabricated in our laboratory. In order to understand all possible interactions, experiments were performed with a single foulant as well as combinations of foulants. Experimental results suggested that the degree of FO membrane fouling could be promoted by synergistic effect of organic foulants, the presence of divalent cations, low cross-flow velocity and high permeation drag force. The water flux of fouled FO hollow fibers could be fully restored by simple physical cleaning. It was also found that hydrodynamic regime played an important role in combined organic-inorganic fouling of FO membranes.
KW - Alginate
KW - Bovine serum albumin (BSA)
KW - Cleaning
KW - Forward osmosis
KW - Fouling mechanism
KW - Organic-inorganic fouling
KW - Silica
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U2 - 10.1016/j.watres.2012.09.003
DO - 10.1016/j.watres.2012.09.003
M3 - Article
C2 - 23026125
AN - SCOPUS:84868302561
SN - 0043-1354
VL - 46
SP - 6329
EP - 6338
JO - Water Research
JF - Water Research
IS - 19
ER -