Optimum process designs for ultrafiltration and crossflow microfiltration systems Original Research Article

This presentation gives methods by which ultrafiltration and cross flow microfiltration system designs can be developed and optimized when data are available relating flux rate and membrane rejection to concentration and to other parameters. System layouts considered include batch, single-stage feed-and-bleed, and multi-stage feed-and-bleed. Membrane types considered include hollow fiber, spiral-wound, tubular and flat sheet. A math program such as that in EXCEL is convenient for the design calculations. A FORTRAN program to handle additional parameters such as variable recovery per pass and membrane rejections that change with concentration has been developed. A progress report was presented at ICOM 2000 in Toronto and this paper is a continuation of that work.