Membrane and membrane module
The hydrophobic polyvinylidene fluoride (PVDF) hollow
fiber membranes used in the experiments were
self-prepared by dry/wet phase inversion process. The
membrane characteristics are shown in Table 1.
The dry PVDF hollow fibers were assembled into a
polyester tube (diameter (mm) din/dout = 15/20) with two
UPVC T-tubes and two ends of the bundle of fibers were
sealed with solidified epoxy resin to form a membrane
module. The module had a total length of 240 mm and an
effective length of 100 mm. The packing fraction of hollow
fibers in the module was about 32%. The total effective
area of the module was about 0.014 m2 based on the inner
surface.