▎ 摘　　要

NOVELTY - The graphene oxide coating filter medium has a carrier such as sand or ceramic ball which is coated with a graphene oxide nano-sheet so as to remove the heavy metal and radioactive substances. The carrier is formed with a diameter of 1.0 mm to 4.0mm. USE - Nano-sheet type graphene oxide coating filter medium. ADVANTAGE - The toxic heavy metal ion and radioactive isotope ion are able to be filtered effectively. The manufacturing time of the filter medium is shortened, and the manufacturing process is made simple. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing method of nano-sheet type graphene oxide coating filter medium. DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view of the field extrinsic processing drawing of the subsurface water polluted by the radioactive substance and the heavy metal using the column reactor in which the nano-sheet type graphene oxide filter medium is charged. (Drawing includes non-English language text)