Ultra-filtration (UF) involves pressure-driven separation of materials from an influent solution. The technology removes particulate and microbial contaminants, but it does not remove ions and small molecules. UF membranes reject solutes ranging in size from 0.03 microns and larger. Pressure drives the process, which typically operates with a feed pressure of 4 to 100 psig
UF plants are automated and have low operational labor requirements
These systems, however, can require frequent cleaning
UF membranes have a service life of three to five years or more
UF modules are available in tubular, hollow-fiber, plate and frame, and spiral wound configurations.