Ultrafiltration (UF) is a separation process using membranes with pore sizes in the range of 0.1 to 0.001 micron. The HAR UF membranes removes high molecular-weight substances, colloidal materials, and organic and inorganic polymeric molecules. With only high-molecular weight contaminants removed, the osmotic pressure differential across the UF Membrane surface is negligible. Low applied pressures are therefore sufficient to achieve high flux rates from the HAR Ultrafiltration membrane.
The HAR UF membrane modules is available in PAN and PVDF material and these UF membrane is used to purify well and surface water for drinking applications, to filter sewage and waste water for water recycle, and to treat surface or sea water for RO and NF systems.