Zero Liquid Discharge (ZLD) is a classification of wastewater treatment processes that aim to efficiently reduce wastewater and produce clean water that is suitable for complete reuse. The residual quantities for disposal are marginal. As a result, a large saving of fresh water of over 90% is possible. Our C-MEM MBR technology has been successfully used in the Tenneco Gliwice project for over 2 years and takes over the important intermediate step of biological treatment including ultrafiltration (membrane bioreactor). SFC is looking forward to further cooperation and continuation of the collaboration with Sytesa Rotoplas and Tenneco in the coming years.