Ceramatec has developed an electrolytic process for the separation of sodium from low-level waste and supplemental low activity waste (LAW) streams, which will allow for recycling of caustic and removal of sodium from waste prior to long term storage. The concept was proven in tests at the U.S. Savannah River Nuclear Site with NaSICON (Sodium Super Ionic CONductor) membrane containing laboratory-scale electrochemical cells using radioactive/contaminated solutions. The goal research was to complete demonstration to establish the ceramic NASICON membranes for the electrochemical separation process that will enable removal of sodium from low-level radioactively contaminated sodium containing waste at the Hanford site. We have successfully demonstrated the method to efficiently remove sodium from simulated waste streams and generate up to 50 weight % concentrated caustic with NASICON membrane-based laboratory-scale electrochemical cells. The electrolytic removal of sodium from low-level contaminated waste streams reduces the waste mass, caustic concentration and improves the process economics by recycling recovered caustic.