A AnoxKaldnes™ MBBR Combining microbiological expertise with decades of experience in wastewater processes enables us to improve on existing systems and to develop new processes. Aerobic Wastewater Treatment U UFLEX™ The new UFLEX™ ultrafiltration systems are skid-mounted, reliable and compact solutions for removing suspended solids, most bacteria and log4 viruses. Membrane Filtration and Ultrafiltration