Preparation and Properties of Hollow Fiber Membranes for Removing Virus and Bacteria

Abstract

In this study, polysulfone hollow fiber membrane was successfully prepared by phase inversion method for separation of virus and bacteria. When we prepare the hollow fiber membrane, we controlled various factors such as the polymer concentration, air gap and internal coagulation to investigate effect to membrane property. Morphology of surface and cross section of membrane were measured by field emission scanning electron microscope (FE-SEM). Water flux of membrane was measured using test modules. Mean pore diameter of membrane was calculated using rejection of polystyrene (PS) latex beads for separation of virus and bacteria. Flux and mean flow pore diameter of prepared membrane show 800 L/mh, 0.03 mu m at 1.0 kgf/cm(2). The bacteria removal performance of prepared UF membranes was over 6 logs