This paper considers process designs and projected membrane performance of semi-batch reverse osmosis (RO) systems for a range of brackish and low-salinity source water types and compositions. The potential advantages of new process design features that are attainable with batch RO but not practical for conventional RO, such as short membrane arrays and high-recovery single-stage designs, are evaluated. Particular focus is given to the operating conditions and performance of individual membrane elements in multi-element membrane arrays. Comparisons are made to the performance of conventional PF RO designs. The analysis will help engineers of nanofiltration (NF) and RO systems to understand the new capabilities, optimization considerations, and potential new applications for this emerging process technology.
This presentation is available to AMTA Members only.
- Richard L. Stover, PhD
- Desalitech, Inc.
- AMTA/AWWA Membrane Technology Conference, San Antonio, TX
- AMTA/AWWA Membrane Technology Conference
- Reverse Osmosis, Semi-Batch Process, Permeate Recovery