TY - GEN
T1 - Control of concentration polarization in forward osmosis processes by membrane vibration
AU - Yuan, Ye
AU - Zhang, Tian C.
PY - 2013
Y1 - 2013
N2 - In this research, membrane vibration was examined as a new way to control the phenomena of concentration polarization (CP) in forward osmosis (FO) processes. A batch reactor was developed for dynamic studies on FO's flux behavior. The performance of «fresh water» production and reverse diffusion in the FO process were evaluated by vibrating the FO membrane under different experimental conditions. Results indicate that, with a NaCl solution (concentration = 1.0M) as the draw solution, the flux was 20-50 L/m2-h for the membrane vibration, which is much higher than that generated by the magnetic stirring method (1-6 L/m2-h). The energy consumption of the method was relatively high, but was lower than that of a RO process. It is concluded that membrane vibration could increase the flux of fresh water production and thus may be used to control the CP better than the methods being used currently.
AB - In this research, membrane vibration was examined as a new way to control the phenomena of concentration polarization (CP) in forward osmosis (FO) processes. A batch reactor was developed for dynamic studies on FO's flux behavior. The performance of «fresh water» production and reverse diffusion in the FO process were evaluated by vibrating the FO membrane under different experimental conditions. Results indicate that, with a NaCl solution (concentration = 1.0M) as the draw solution, the flux was 20-50 L/m2-h for the membrane vibration, which is much higher than that generated by the magnetic stirring method (1-6 L/m2-h). The energy consumption of the method was relatively high, but was lower than that of a RO process. It is concluded that membrane vibration could increase the flux of fresh water production and thus may be used to control the CP better than the methods being used currently.
UR - http://www.scopus.com/inward/record.url?scp=84887459721&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887459721&partnerID=8YFLogxK
U2 - 10.1061/9780784412947.134
DO - 10.1061/9780784412947.134
M3 - Conference contribution
AN - SCOPUS:84887459721
SN - 9780784412947
T3 - World Environmental and Water Resources Congress 2013: Showcasing the Future - Proceedings of the 2013 Congress
SP - 1370
EP - 1376
BT - World Environmental and Water Resources Congress 2013
PB - American Society of Civil Engineers (ASCE)
T2 - World Environmental and Water Resources Congress 2013: Showcasing the Future
Y2 - 19 May 2013 through 23 May 2013
ER -