Membrane distillation (MD) is a thermally driven process that can be used to extract distillate-quality water from highconcentration streams using waste heat and/or solar thermal energy. To achieve near-100% rejection of solutes, MD relies on an hydrophobic, unwetted membrane. This presentation investigates the long-term (100-day) wetting resistance of hydrophobic MD membranes and the wetting behavior of conventional and novel MD membranes with high-concentration feed streams, as may be present in concentrate recovery systems and in applications approaching zero liquid discharge (ZLD). This research provides fundamental insight into wetting mechanisms relevant to MD membrane design for high-recovery treatment applications.
This presentation is available to AMTA Members only.
- Allyson McGaughey / Ryan Gustafson / Amy E. Childress
- University of Southern California
- AMTA/AWWA Membrane Technology Conference, New Orleans, LA
- AMTA/AWWA Membrane Technology Conference
- Membrane Distillation, Zero Liquid Discharge, Membrane Design for High-Recovery