Reverse osmosis (RO) membrane fouling is currently a key issue that reduces the lifetime of RO units, thus costing desalination plants hundreds of millions of dollars annually in addition to causing severe operational problems. Physical or chemical methods have been commonly used to rejuvenate membranes for their reuse. Even though fouling can be partially controlled, chemically cleaned RO membranes tend to consume high power and reduce the water flux.
Modern membrane surface modification techniques have shown some promising features such as low bacterial affinity and high flux with higher salt rejection. Recently CNT-doped polymer has been proposed as a potential membrane surface modification approach for reducing the effect of fouling on RO membranes . In this project, we demonstrate that further enhancement of the performance of CNT-doped polymer membranes can be achieved through electric-field-based alignment of CNTs along the posers of RO membranes and the use of PDMS to further increase the hydrophobicity of the modified membranes.
Mr Samarth Trivedi
Electron Science Research Institute
Telephone: (61 8) 6304 4242
Please leave a comment about your rating so we can better understand how we might improve the page.