A refinery in Europe faced persistent challenges in treating wastewater with high total organic carbon (TOC) and low levels of oil and grease. Conventional RO membranes struggled to maintain performance, requiring frequent cleanings and limiting water recovery.
ZwitterCo’s low-energy RO membranes provided a breakthrough solution, seamlessly integrating into the first pass of a two-pass system. The ZwitterCo RO membranes handled the tough wastewater stream while resisting fouling, enabling the system to operate with minimal cleanings and only routine water flushes.
Since installation, the site achieved:
✅ Increased recovery from 70% to 85%—without harsh chemical cleanings
✅ Stable performance with consistent permeance and rejection
✅ Reduced downtime, improving overall system efficiency
By eliminating performance limitations, ZwitterCo is helping this site drive efficiency and sustainability. Looking for a more resilient RO solution? Contact us today.