Q-SEP®

Hollow Fiber Ultrafiltration Membranes

QUA’s Q-SEP® ultrafiltration (UF) membranes deliver high recovery rates (95%+) with the highest-quality product water (SDI <3). Engineered for fouling resistance and long service life, Q-SEP efficiently removes suspended solids, colloids, high molecular-weight substances, bacteria, and viruses.

Available in both inside-out and outside-in configuration, Q-SEP reduces downstream RO membrane fouling, extends system lifespan, lowers cleaning frequency, and saves energy. Ideal for a wide range of feeds from surface, well, sea, or treated wastewater sources, Q-SEP ensures consistent performance for advanced water treatment and reuse.

Low Maintenance, High Reliability

Superior fouling resistance extends cleaning cycle intervals and reduces unplanned downtime, improving system reliability.

Low Operating Cost

High porosity membranes operate at a higher flux rate and lower Transmembrane Pressure (TMP), due to high porosity, reducing capital equipment requirements and operational expenditure.

Exceptional Filtration Performance

Inside out ultrafiltration membrane fibers, manufactured using QUA’s patented cloud point precipitation process, delivers uniform pore size and consistently high-quality permeate (SDI <3) for optimal RO protection.

Handle Challenging Wastewaters

Outside-In TIPS (Thermally Induced Phase Separation) membranes offer high mechanical strength, high chemical and chlorine tolerance, and ability to handle high feed turbidity for wide range of applications.

How Does Q-SEP® Work?

Q-SEP® outside-in hollow fiber ultrafiltration modules contain polyvinylidene fluoride (PVDF) membranes manufactured by QUA’s innovative modified thermally induced phase separation (TIPS) method. The membrane has high mechanical strength, high chemical and chlorine tolerance, and ability to handle high feed turbidity with wide range of application. The membranes are available with 1.25 mm (0.05 inch) OD capillary to treat feed water with high turbidity up to 100 NTU.

Applications of Q-SEP® UF Technology

Q-SEP® Q-Connect

Q-SEP® Q-Connect is a pre-engineered, outside-in UF rack solution for high-flow and containerized systems. It reduces on-site assembly time, minimizes footprint, and ensures consistent water quality.

Ideal for any industrial, municipal or wastewater treatment application demanding high-flow, high-performance ultrafiltration.

Q-SEP® Q-Connect is available in 6- and 4-module configurations. Each module has a membrane area of 100 m2. A more compact 90m2 module is also available for containerized application.