Membrane Module pH s Pm
(cm/sec)
Selenate ESNA Spiral-wound 10 0.85 7.1×10-6
ESNA Spiral-wound 7 0.82 6.8×10-6
ESNA Spiral-wound 4 0.84 6.9×10-6
GM Flat-sheet 10 0.62 2.3×
GM Flat-sheet 7 0.43 2.2×
GM Flat-sheet 4 0.19 2.0×
PW Flat-sheet 10 0.51 1.7×10-3
Selenite ESNA Spiral-wound 10 0.80 7.0×10-6
ESNA Spiral-wound 7 0.61 6.9×
ESNA Spiral-wound 4 0.31 6.9×10-6
GM Flat-sheet 10 0.31 2.2×10-4
GM Flat-sheet 7 0.13 2.2×10-4
PW Flat-sheet 10 0.11 1.7×10-3
Table 2: Estimated transport coefficients.