ENHANCED SPIRAL-WOUND MEMBRANE FILTRATION

摘要

Embodiments provide methods and apparatuses for filtering a fluid through a porous membrane, and more particularly, it provides filtration methods and apparatuses for tangential-flow filtration using Vibration Induced Dynamics (VID) with a spiral-wound membrane filter element. Embodiments provided herein induce vibration via rotation of an unbalanced inner tube within a central filtrate drain tube, via axial deformation of a substantially circular-cylindrical outer shell, or a combination thereof. Also disclosed herein are friction-reducing separator fabrics for interleaving with the membrane of a spiral-wound filter element.