Poreflon pressurized UF membranes

Pressurized membrane applications are typically used to produce high-quality permeate for reuse in agriculture or for reintegration into industrial production cycles. The acronym TT stands for Tertiary Treatment, a process in which ultrafiltration is used to remove bacteria and macromolecules downstream of secondary sedimentation.

Poreflon pressurized ultrafiltration units are made with hollow fiber membranes composed of PTFE (polytetrafluoroethylene, also known as Teflon), configured in an OUT-IN filtration mode. They are ideal for removing turbidity from industrial streams or for tertiary treatment applications aimed at recovering wastewater in both municipal and industrial treatment plants.

Poreflon membranes offer a filtration precision that varies depending on the selected model—from 0.1 microns (microfiltration) to 0.08 microns (ultrafiltration). This enables them, beyond turbidity removal, to significantly reduce concentrations of bacteria such as Giardia and Cryptosporidium, as well as to lower SDI values below the thresholds required for reverse osmosis and nanofiltration systems.

Key Features:

• The unique manufacturing process produces a polymer with a highly porous microstructure that minimizes pore clogging, maintaining consistently high permeability over time.
• The tensile and bending strength of PTFE is approximately 5 times and 10 times greater, respectively, than that of other commonly used polymers in pressurized MF/UF applications (e.g., PVDF, PES).
• PTFE is well-known for its chemical and thermal resistance: it withstands both oxidizing and reducing chemical agents across the full pH spectrum, making it suitable for aggressive membrane cleaning procedures that help restore permeability quickly and effectively. In addition, it can be used to filter liquid streams with temperatures up to 50°C.