The project Ceramic, high-flux microfiltration membrane combined a range of disciplines within colloidal chemistry, ceramic processing, and membrane engineering in a successful collaboration between DTU Energy, LiqTech International A/S, and a Chinese partner. It was defined to reduce the presence of macropores to achieve a welldefined filtration cut-off (maximum in pore size distribution) and to lower the roughness of the membrane to reduce the tendency to fouling and blocking of the pores. This would open new markets for microfiltration in a number of applications - not only in China but worldwide. The application of a successful membrane could be extended also to removal of pathogens from hospital wastewater, and other business areas.