▎ 摘　　要

NOVELTY - Filtering water from a nuclear power plant according to its isotopic forms, involves obtaining a waste stream of liquid water from a nuclear power plant, heating the waste stream of liquid water to form a gas comprising at least two distinct isotopic forms of water, passing the gas into a filtration module, directing at least a portion of the gas into the graphene oxide membrane, and using the graphene oxide membrane to separate the gas into a permeate and a retentate. USE - The method is useful for filtering water from a nuclear power plant according to its isotopic forms using nuclear power plant filtration system (all claimed). ADVANTAGE - The method limits detrimental impact of tritiated water on living organisms and on environment and maintains relative humidity within the filtration portion of the module. DETAILED DESCRIPTION - Filtering water from a nuclear power plant according to its isotopic forms, involves obtaining a waste stream of liquid water from a nuclear power plant, where the waste stream comprises at least two distinct isotopic forms of water, heating the waste stream of liquid water to form a gas comprising at least two distinct isotopic forms of water, passing the gas into a filtration module, where the filtration module comprises a graphene oxide membrane, directing at least a portion of the gas into the graphene oxide membrane, and using the graphene oxide membrane to separate the gas into a permeate and a retentate, where the permeate comprises an increased concentration of light water relative to the retentate. An INDEPENDENT CLAIM is also included for nuclear power plant filtration system.