Rotating Membrane Filtration and Rotating Reverse Osmosis

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Richard M. Lueptow²  Sangho Lee¹ 

[1] Construction Environment Research, Korea Institute of Construction Technology;Department of Mechanical Engineering, Northwestern University

关键词: Dynamic Filtration;    Rotating Reverse Osmosis;    Membrane;    Concentration Polarization;    Fouling;    Taylor–Couette Flow;   

DOI  :  10.1252/jcej.37.471

来源: Maruzen Company Ltd

【 摘 要 】

References(85)Cited-By(5)Rotating membrane filtration is a means of dynamic filtration that incorporates both high shear and flow instabilities to reduce membrane fouling. The device consists of a cylindrical membrane filter rotating within an outer cylindrical shell. The superior performance of rotating membrane filtration appears to be a consequence of the high shear in the annulus, which is enhanced by the redistribution of azimuthal momentum by the appearance of Taylor vortices in the annulus. The anti-fouling characteristics of rotating filtration can be utilized for reverse osmosis in addition to microfiltration. In this paper, we review the physics underlying rotating filtration, examine the anti-fouling mechanisms in rotating filtration, and describe recent efforts to apply rotating filtration to reverse osmosis.

【 授权许可】

Unknown