SR2 Nanofiltration Membrane

The SR2 nanofiltration membrane significantly lowers operating costs for a wide variety of selective rejection applications, including water softening, lactose reduction, protein recovery, and antibiotic and enzyme concentration and recovery. Hardness rejection is typically 95% and organic rejection exceeds 90% for organics with molecular weight in the range of 400–600 daltons. The SR2 element softens incoming water and retains low-molecular-weight organics, while allowing monovalent salts to pass through the membrane. It concentrates pharmaceuticals without phase change in aqueous mother liquors. In water treatment applications, the SR2 element softens without the need for disposing of regeneration solutions, and it eliminates contaminants without the need to process large volumes of sludge or wasted regenerants. Koch Membrane Systems, Inc.