10
III. Outline
1. Outline of membrane
The hollow fiber membrane installed in this rack is made of PVDF (Polyvinylidene
fluoride). Cross section of the structure is shown in Fig. 1. Flow direction to the
hollow fiber membrane is outside to inside.
Fig. 1 Cross section picture of Toray PVDF hollow fiber
The diameter of the hollow fiber membrane is designed to be as follows:
For HSU-1515: Outside diameter is 1.4 mm. Inside diameter is 0.9 mm.
Molecular weight cut off (MWCO) of the HSU membrane is shown in Fig. 2. The
MWCO is determined by dextran solution having molecular weight of 70,000,
200,000 and 500,000. The concentrations of the dextran are measured by the
Refractive Index Detector.
0
20
40
60
80
100
10,000
100,000
1,000,000
MW of Dextran
Reje
ction
(%)
Fig. 2 Molecular weight cut off (MWCO) of the HSU membrane
Flow Direction
(Outside-in)
Cross Section
Flow Direction
(Outside-in)
Cross Section
Summary of Contents for HSU-1515
Page 20: ...18 2 Configuration Rack Model R16 ...
Page 21: ...19 Rack Model R08 ...
