In addition to being used for water treatment, filtration membranes can also be used for ultra pure water production and seawater desalination, typically using reverse osmosis membranes (nanofiltration membranes). In addition, ultrafiltration and microfiltration membranes are commonly used for the treatment of feces and urine, urban waterways, and various wastewater treatments. In industry, it can be used in dairy products manufacturing, semiconductor manufacturing, food manufacturing, paper manufacturing, and pharmaceutical manufacturing, and generally uses ultrafiltration and microfiltration membranes.

Filter membranes are used for the separation and concentration of solutes in treatment solutions, and are also commonly used for the separation of colloidal suspensions. Their application fields are constantly expanding.