Inorganic ceramic membranes are nanoscale microporous separation membranes made from materials such as Al₂O₃, TiO₂, ZrO₂ through high-temperature sintering. Their stable material properties make them suitable for a wider range of applications than organic membranes. They consist of a porous support layer, a transition layer, and a membrane layer, featuring an asymmetric distribution. The filtration precision covers microfiltration and ultrafiltration, making them widely applicable in the pharmaceutical and food industries.