Aliaksei Smalenski @ stock.adobe.com
Used for the filtration and purification of liquids and gases, a ceramic membrane is made from inorganic materials such as; alumina, titania, zirconia oxides, silicon carbide or some glassy materials. It takes the form of rods, pipes, or flat sheets and can be either dense or porous. Dense membranes are used in gas separation, while porous membranes can perform micro, ultra or nanofiltration for liquids, removing impurities like suspended substances, turbidity, bacteria and protozoans. As a durable material, ceramic membranes are especially resistant to pressure and heat, allowing for enhanced performance and sustainability.
Ceramic membranes have been used for many years in liquid filtration across various industries, including wastewater treatment, while their use in gas filtration has been more limited. However, some promising recent research has demonstrated the use of ceramic membranes to increase the efficiency of hydrogen production.