For a project in Upper Austria, we supplied a water cooperative with a C-MEM ultrafiltration system to serve as a pre-treatment stage prior to a UV disinfection system.
The challenge: The spring water occasionally exhibits elevated turbidity and suspended solids levels. These contaminants cause the downstream UV system to regularly switch to bypass or shut down, as the required UV transmittance can no longer be guaranteed.
The solution: C-MEM™ ultrafiltration.
The C-MEM UF system reliably removes suspended solids and turbidity, reducing them to < 1 NTU. This ensures that the UV system consistently receives high-quality feed water and can be operated safely even when raw water quality fluctuates.
Additional benefits of ultrafiltration in this application:
âś” Consistent water quality regardless of seasonal fluctuations in the source
âś” Increased operational reliability of UV disinfection due to stable UV transmission
âś” Significantly fewer unplanned bypasses and operational interruptions
âś” Reduced maintenance requirements and longer service life of UV lamps due to reduced fouling
âś” Future-proof solution for increasing demands on drinking water treatment
We are particularly pleased that C-MEM has been chosen for this project—an Austrian membrane technology developed in Austria and manufactured in Europe. Short supply chains, high quality standards, and technical support from the region are a decisive advantage for many water utilities.
Project details:
đź“Ť Upper Austria
đź’§ Spring water treatment
⚙️ 1 C-MEM module with 8 cartridges (each with 12 m² of membrane surface area)
🌊 Design capacity: 259 m³/day or 10.8 m³/h
🚀 Commissioning: 2026
