Transport of ions through an elliptic ion-selective membrane

摘要: Abstract The rate of transport ions through an annular ion-selective membrane having elliptic cross section is analyzed. This a generalization to hollow-fiber type device, and represents wide class membranes which are capable providing large (surface area/volume) ratio for ion transport. Nernst–Plank equation governing the solved numerically. results obtained reveal that, if concentration fixed charge high, its current efficiency insensitive distribution, local electroneutrality can be assumed. On other hand, low, distribution becomes significant, assuming inappropriate. In general, higher average (or greater total amount) membrane, efficiency. We show that planar cylindrical recovered from present model.