Spiral-wound modules

A mass transfer coefficient determination method, based on the velocity variation method, is developed for pressure-driven membrane modules with large membrane area and high recovery rates. The method was used to measure mass transfer coefficients in the nanofiltration spiral-wound module Filmtec NF

The key to developing highly efficient spiral-wound modules is the improvement of the mass transfer mechanisms. In this study a study of the mass transfer has been carried out using a flat test cell with six permeate outlets and a rectangular feed channel. Using this experimental set-up, it has been