Reverse Osmosis membranes

Polymem is the distributor of reverse osmosis membranes in France.

Our experience in the development of membrane filtration systems allows us to offer assistance and know-how in the choice of membranes, the design and manufacture of reverse osmosis systems, nanofiltration and systems combining ultrafiltration and reverse osmosis.

Applications 

The RO membrane elements consists of spiral-wound, thin-film composite membrane elements designed specifically for water treatment applications. The RO membrane chemistry and element construction is designed to provide optimized, low-cost operation for downstream unit applications, like separate-bed or mixed-bed ion exchange units.

Most important applications for industrial water treatment are:

• • • • Seawater desalination
      • Production of boiler feed water in power stations
      • Demineralization and particle removal in microchip manufacture
      • Water desalination for light industry (car wash, laundries, and marine application)
      • Wastewater treatment, including post membrane bioreactor (MBR) application
      • Groundwater remediation and recharge

Reverse Osmosis membranes Benefits

• • • • Low salt passage, typically >99,7% rejection at standard conditions in brackish water
      • High flow productivity
      • Improved barrier layer chemistry (lower charge and higher cross-linkage) providing lower membrane fouling rates
      • More stable salt rejection during operating lifetime (as the rejection mechanism is based more on solution diffusion than ionic repulsion)
        Improved organic compound rejection
      • More durable to allow less frequent, more aggressive cleaning