Membrane and Desalination Technologies - TCE Moodle Website

Advanced Membrane Fouling Characterization 133
R f ¼ Resistance of the fouling layer (Pa s/m)
Rm ¼ Membrane resistance (Pa s/m)
R m0 ¼ Clean membrane resistance (Pa s/m)
rrej ¼ Salt rejection of the membrane
rs ¼ Specific resistance of the fouling layer (Pa s m/g)
Rt ¼ Total hydraulic resistances at the end of the fouling test (Pa s/m)
tf ¼ Time to collect final 500 mL of sample (min)
ti ¼ Time to collect initial 500 mL sample (min)
ttotal ¼ Total running time of SDI test (min)
u ¼ Crossflow velocity (m/s)
u0 ¼ Feed flow velocity (m/s)
v ¼ Permeate flux (m/s)
v0 ¼ Measured permeate flux at the beginning of the fouling experiment (m/s)
v t ¼ Measured permeate flux at the end of the fouling experiment (m/s)
vðtÞ ¼Average permeate flux at time t (m/s)
x ¼ Integration variable
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