Product Sector: Environment → Waste Water Treatment
Veolia Water Solutions & Technologies' ceramic membrane modules, utilizing the CeraMem technology platform, can be supplied with a variety of inorganic microfiltration and ultrafiltration membranes. Nanofiltration and pervaporation membranes are currently under development.
There is a technical limitation to the use of monolith supports as described above. The long and tortuous path through which the permeate must flow to get to the outside of the monolith can lead to a large pressure drop for permeate flow within the porous membrane support. The pressure drop reduces the trans-membrane pressure for the interior passageways. This limitation generally restricts the diameter of monoliths than can be used, at least for microfiltration and ultrafiltration, to approximately 40 mm.
Mechanical modifications to the monoliths have effectively overcome this limitation. The modifications form permeate "conduits" within the monolith that conduct permeate from interior feed passageways to the permeate collection zone external to the monolith.