A ceramic filter includes a porous base member formed of a ceramic porous
body, a carbonaceous membrane formed on the porous base member, and an
inorganic separation membrane formed on the carbonaceous membrane.
According to a method for the ceramic filter for reuse, the deteriorated
ceramic filter is thermally treated to remove the carbonaceous membrane
and the inorganic membrane from the porous base member, then the
carbonaceous membrane is formed on the porous base member, and the
inorganic membrane is formed on the carbonaceous membrane.