Real-time monitoring of scale formation in reverse osmosis using electrical impedance spectroscopy

• Published in: Journal of membrane science Vol. 453; pp. 320 - 327
• Main Authors: Hu, Zhixin, Antony, Alice, Leslie, Greg, Le-Clech, Pierre
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.03.2014; Elsevier
• Subjects: artificial membranes; Calcium sulfate; capacitance; Chemistry; Colloidal state and disperse state; Conductance; dielectric spectroscopy; Electrical impedance spectroscopy; Exact sciences and technology; filtration; Flux; General and physical chemistry; Membranes; Monitoring; Real time monitoring; Reverse osmosis; Scale formation; Spectroscopy; Reverse osmosis; Real time monitoring; Electrical impedance spectroscopy; Calcium sulfate; Membrane separation; Membrane; Electrical impedance

Early detection of scale formation in reverse osmosis systems remains challenging since the bulk measurements of the operating data are not sufficiently sensitive to detect the subtle changes occurring across the membrane. Electrical impedance spectroscopy (EIS) was investigated as a tool for measur...