A Taiwanese electronics and optoelectronics joint stock company
AQFILM ultrafiltration-grade MBR membranes selected for this project have an average pore size of 0.03μm.
The company is a publicly listed Taiwanese enterprise with the most complete generation production lines ranging from G3.5, G4, G4.5, G5, G6, G7.5, G8.5 to G8.6. It is the world’s only integrated display provider with complete production capabilities for large, medium, and small-sized LCD panels and touch panels across the entire supply chain.For its liquid crystal panel washing wastewater treatment system, the MRB process technology is adopted. After A²O biochemical treatment, the wastewater enters the MBR membrane tank. The effluent from the MBR membrane tank directly feeds into the RO system for reuse.
Adopting AFC-Z500D Ultrafiltration-Grade MBR Membrane with Separation Pore Size
The AQFILM ultrafiltration-grade MBR membrane selected for this project is model AFC-Z500D, with an average separation pore size of 0.03μm. Its innovative embedded membrane fabrication process not only enables precise regulation of separation pore size but also interlocks the support layer and filtration layer tightly, addressing the common issue of delamination between the separation layer and support layer in traditional lined membranes.Meanwhile, the dense separation pore size in application not only fully realizes effective separation of sludge and water, but also removes partial organic matter, suspended solids (SS), etc., from the water, resulting in produced water with SDI ≤3. The excellent produced water quality meets the requirements of subsequent reverse osmosis processes.The direct reuse of MBR effluent in the RO system represents a significant process innovation in panel wastewater recycling. Conventional MBR membranes struggle to maintain long-term stable operation under such conditions due to issues like large pore sizes and susceptibility to fouling. The ultrafiltration-grade MBR membrane custom-developed by AQFILM offers numerous advantages: high flux, excellent water quality, strong fouling resistance, and easy cleaning recovery. In this industry application, it achieves a stable flux of approximately 20 LMH in continuous operation and maintains consistent performance through regular backwashing, providing an innovative solution for wastewater reuse in the panel manufacturing sector.
The AQFILM ultrafiltration-grade MBR membrane has been operational in the wastewater treatment of liquid crystal panel production for nearly three years. Currently, the MBR system is running stably with low suction pressure, and both the effluent flow rate and water quality meet the requirements of the technical agreement. After nearly three years of continuous operation, the client reported that the annual decline in the system's normal water production flow rate is ≤2.5%, and the water quality remains stable at SDI <3, providing a reliable guarantee for the subsequent stable operation of the RO system.