ABSTRACT
As long as the membrane can be considered to be
homogenous (no pores, solute dissolved in membrane)
diffusion occurs according to the steady-state Fick
equation
m_¼ DmsAcm L
ð1Þ
wherem_ is the mass flow rate (kg sec-1);Dms, the diffusion coefficient of the solute in the membrane (m2 sec-1);cm, the concentration difference within the membrane
(kg m-3); L, the membrane thickness (m); and A, the
membrane area (m3).
